start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=417
end-page=431
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20251015
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Evaluation of a Startup Program Identification for Efficient and Accurate IoT Security Investigations
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Not all file in firmware are executed while using Internet of Things (IoT) devices and hundreds to approximately a thousand executable and linkable format files exist in one firmware. Therefore, security investigations without prioritization may lead to investigate programs that are not executed while using IoT devices first. This has resulted in inefficient security investigations. To perform efficient security investigations, we proposed a method that can identify programs executed during the startup process. However, only two firmware were used for the evaluation which can only evaluate one of the two startup sequences in the OpenWrt-based firmware. In addition, security investigations to validate whether the proposed method addresses the problem of inefficient security investigations were limited to OpenWrt-based firmware. In this study, we use more firmware data for evaluation and validation. We use nine firmware not used in previous studies including startup methods that have not previously been used for evaluation. In addition, we increase the number of firmware used for validation to 225. The evaluation results demonstrate that the proposed method can identify with only few false positives. The validation demonstrates that efficiency can be improved and prioritizing investigations by considering the proposed method result is worthwhile.
en-copyright=
kn-copyright=
en-aut-name=ShimamotoYuta
en-aut-sei=Shimamoto
en-aut-mei=Yuta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=PhinyodomJiratchaya
en-aut-sei=Phinyodom
en-aut-mei=Jiratchaya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=YoshimotoRyota
en-aut-sei=Yoshimoto
en-aut-mei=Ryota
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=UekawaHiroyuki
en-aut-sei=Uekawa
en-aut-mei=Hiroyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=AkiyamaMitsuaki
en-aut-sei=Akiyama
en-aut-mei=Mitsuaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=YamauchiToshihiro
en-aut-sei=Yamauchi
en-aut-mei=Toshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
affil-num=1
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=School of Engineering, Okayama University
kn-affil=
affil-num=3
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=NTT Social Informatics Laboratories
kn-affil=
affil-num=5
en-affil=NTT Social Informatics Laboratories
kn-affil=
affil-num=6
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Internet of Things
kn-keyword=Internet of Things
en-keyword=Firmware
kn-keyword=Firmware
en-keyword=Startup script
kn-keyword=Startup script
en-keyword=SysVinit
kn-keyword=SysVinit
END
start-ver=1.4
cd-journal=joma
no-vol=89
cd-vols=
no-issue=11
article-no=
start-page=337
end-page=343
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20251101
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Ti-18Nb-xAl合金の構成相と材料特性に及ぼすAl添加量の影響
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The Ti-18mass%Nb alloy with a quenched α” martensitic structure exhibited a high damping capacity. However, there are issues such as lower strength than annealed α+β structure and decreasing damping capacity due to heating until 400 K. Therefore, in this study, to address these issues, we investigated the effect of Al addition on the constituent phases and material properties of Ti-18Nb-xAl alloys. The crystal structure was determined by examining the lattice constant and unit volume using X-ray diffraction, and optical microscopy was also performed. The material properties were investigated by Vickers hardness, Young’s modulus, internal friction, tensile tests, and DSC measurements. Vickers hardness and tensile strength increased with increasing Al content. This is thought to be due to the combined effects of the refinement of the microstructure and solid-solution strengthening due to Al addition. The Young’s modulus increased slightly from 0Al to 1Al, but increased significantly to 4Al. Internal friction was highest for 0Al and decreased for 4Al, whereas 7Al showed a higher value than 1Al. In the DSC heating curves, there was a decrease in the exothermic peak starting temperature and an increase in the phase-transformation heat with the addition of Al, except for 1Al. It was suggested that these changes in Ti-18Nb-xAl alloys were influenced by the structure of the quenched α” phase, texture, and pseudoelasticity or phase transformation by deformation.
en-copyright=
kn-copyright=
en-aut-name=MantaniYoshikazu
en-aut-sei=Mantani
en-aut-mei=Yoshikazu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=TakemotoYoshito
en-aut-sei=Takemoto
en-aut-mei=Yoshito
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
affil-num=1
en-affil=Department of Materials Science and Engineering, National Institute of Technology (KOSEN), Suzuka College
kn-affil=
affil-num=2
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=ternary titanium alloy
kn-keyword=ternary titanium alloy
en-keyword=martensite
kn-keyword=martensite
en-keyword=lattice constant
kn-keyword=lattice constant
en-keyword=hardness
kn-keyword=hardness
en-keyword=Young’s modulus
kn-keyword=Young’s modulus
en-keyword=internal friction
kn-keyword=internal friction
en-keyword=cyclic tensile test
kn-keyword=cyclic tensile test
en-keyword=texture
kn-keyword=texture
END
start-ver=1.4
cd-journal=joma
no-vol=12
cd-vols=
no-issue=1
article-no=
start-page=20
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20251021
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Natural Effects and Separable Effects: Insights into Mediation Analysis
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Purpose of Review We compare natural effects and separable effects under nonparametric structural equation models with independent errors, highlighting their similarities and differences. By examining their required properties and sufficient conditions for identification, we aim to provide deeper insights into mediation analysis.
Recent Findings If certain assumptions about confounding, positivity, and consistency are met, we can identify natural direct and indirect effects under nonparametric structural equation models with independent errors. However, these effects have been criticized because they rely on a specific cross-world quantity, and the so-called cross-world independence assumption cannot be empirically verified. Furthermore, interventions on the mediator may sometimes be challenging to even conceive. As an alternative approach, separable effects have recently been proposed and applied in mediation analysis, often under finest fully randomized causally interpretable structured tree graph models. These effects are defined without relying on any cross-world quantities and are claimed to be identifiable under assumptions that are testable in principle, thereby addressing some of the challenges associated with natural direct and indirect effects.
Summary To conduct meaningful mediation analysis, it is crucial to clearly define the research question of interest, and the choice of methods should align with the nature of the question and the assumptions researchers are willing to make. Examining the underlying philosophical perspectives on causation and manipulation can provide valuable insights.
en-copyright=
kn-copyright=
en-aut-name=SuzukiEtsuji
en-aut-sei=Suzuki
en-aut-mei=Etsuji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=ShinozakiTomohiro
en-aut-sei=Shinozaki
en-aut-mei=Tomohiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=YamamotoEiji
en-aut-sei=Yamamoto
en-aut-mei=Eiji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
affil-num=1
en-affil=Department of Epidemiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=2
en-affil=Interfaculty Initiative in Information Studies, the University of Tokyo
kn-affil=
affil-num=3
en-affil=Okayama University of Science
kn-affil=
en-keyword=Causality
kn-keyword=Causality
en-keyword=Counterfactuals
kn-keyword=Counterfactuals
en-keyword=Cross-world independence assumption
kn-keyword=Cross-world independence assumption
en-keyword=Directed acyclic graphs
kn-keyword=Directed acyclic graphs
en-keyword=Mediation analysis
kn-keyword=Mediation analysis
en-keyword=Nonparametric structural equation models with independent errors
kn-keyword=Nonparametric structural equation models with independent errors
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20251005
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Artificial Selections for Life-History Traits Affect Effective Cumulative Temperature and Developmental Zero Point in Zeugoducus cucurbitae
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Effective cumulative temperature and developmental zero point are important indicators for estimating the timing of organism development and the area of distribution. These indicators are generally considered to have unique values for different species of organisms and are also important for predicting the distribution range of animals and plants, especially insect pests. These values generally are species-specific, but there is variation within populations in traits having a genetic component. However, there are no studies on what kind of selection pressure affects these indicator values. To address this issue, it would be worthwhile to compare these values using individuals of strains that have been artificially selected for life-history traits by rearing them at various temperatures and calculating these indicators from developmental days and temperatures. In the present study, eggs were taken from adults of strains with many generations of artificial selection on two life-history traits (age at reproduction and developmental period) of the melon fly, Zeugodacus cucurbitae, under constant temperature conditions. Eggs were reared at five different temperatures, and the effective cumulative temperatures and developmental zero points of the larval and developmental periods were compared. The results demonstrate that artificial selection on life-history traits in Z. cucurbitae induces evolutionary changes in both the effective cumulative temperature and the developmental zero point across successive generations.
en-copyright=
kn-copyright=
en-aut-name=MiyatakeTakahisa
en-aut-sei=Miyatake
en-aut-mei=Takahisa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=MatsumuraKentarou
en-aut-sei=Matsumura
en-aut-mei=Kentarou
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
affil-num=1
en-affil=Graduate School of Environment, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Department of General Systems Studies, Graduate School of Arts and Sciences, the University of Tokyo
kn-affil=
en-keyword=age at reproduction
kn-keyword=age at reproduction
en-keyword=development time
kn-keyword=development time
en-keyword=developmental period
kn-keyword=developmental period
en-keyword=larval period
kn-keyword=larval period
en-keyword=melon fly
kn-keyword=melon fly
en-keyword=Tephritidae
kn-keyword=Tephritidae
en-keyword=thermal biology
kn-keyword=thermal biology
en-keyword=trade-offs
kn-keyword=trade-offs
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20251022
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Comparison of flight behaviors among laboratory and field strains in Tribolium castaneum (Coleoptera: Tenebrionidae) using a simple method to measure flight ability
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Most insects can fly. The acquisition of flight is a factor that allows insects to prosper on Earth. On the other hand, in the same species and population, individual differences in flight ability may occur. Flight ability can vary due to geographical conditions and cumulative rearing. Investigating these changes in flight performance is important for understanding dispersal polymorphism and the evolution of flight performance. Thus, in the present study, the flight behaviors between cumulative rearing and field strains and changes in flight behaviors between strains of the red flour beetle, Tribolium castaneum Herbst (Coleoptera: Tenebrionidae), which is distributed around the world were compared. Tribolium castaneum is a worldwide pest of stored grains. Its body length is about 3–4 mm. Previous studies have investigated the influence of environmental and physiological factors on the flight of this species, but no studies have examined individual differences or polymorphism in flight behaviors within this species. In this study, we developed a simple apparatus that can quantify the flight behavior of this species. The experimental apparatus was set up as a double structure with two different size containers. This apparatus was able to assess the flight activity of insects by counting individuals in a big container because insects transfer to the big container only by flight. Moreover, upward flight ability was possible to be assessed by the apparatus adding the barrier. Then, the flight behavior was compared between strains of this species that have been bred in the laboratory for more than 45 years and several strains of this species collected in the field. The results showed no variation in flight activity between strains, but flying ability was higher in strains originating from warmer regions. Here, we discussed the variations in flight behavior of T. castaneum.
en-copyright=
kn-copyright=
en-aut-name=SoneSota
en-aut-sei=Sone
en-aut-mei=Sota
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=MiyatakeTakahisa
en-aut-sei=Miyatake
en-aut-mei=Takahisa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
affil-num=1
en-affil=Faculty of Environment, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Faculty of Environment, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Dispersal
kn-keyword=Dispersal
en-keyword=Flight behavior
kn-keyword=Flight behavior
en-keyword=Red flour beetle
kn-keyword=Red flour beetle
en-keyword=Upward flight
kn-keyword=Upward flight
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=286
end-page=299
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=2025
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Effects of Visual Stimuli on Perceived Sound Volume in Virtual Reality Spaces
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=With the proliferation of affordable and high-performance virtual reality (VR) devices, VR content such as games and the metaverse is becoming increasingly widespread. In VR environments, users experience various sensory stimuli, primarily through visual and auditory cues. However, subjective perception of these stimuli varies based on user context. Existing studies have shown that auditory perception can be influenced by visual stimuli, however, most of them have focused on congruent audiovisual stimuli, leaving the effects of non-congruent pairings unexplored. This study investigates how visual stimuli, specifically color and crowdedness, influence perceived sound volume in VR. In the experiment that participants experienced VR environments with different room colors while listening to test tones, the results showed that warm colors led to higher perceived volume at low sound levels. Also, in the experiment that participants viewed VR scenes with varying crowd densities while hearing announcements, less crowded environments resulted in higher perceived sound volume. These findings suggest that visual context impacts auditory perception, providing insights for optimizing hearable devices and enhancing VR auditory experiences.
en-copyright=
kn-copyright=
en-aut-name=MatsudaYuki
en-aut-sei=Matsuda
en-aut-mei=Yuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=KobayashiToma
en-aut-sei=Kobayashi
en-aut-mei=Toma
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=WatanabeHiroki
en-aut-sei=Watanabe
en-aut-mei=Hiroki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=YasumotoKeiichi
en-aut-sei=Yasumoto
en-aut-mei=Keiichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
affil-num=1
en-affil=Okayama University
kn-affil=
affil-num=2
en-affil=Nara Institute of Science and Technology
kn-affil=
affil-num=3
en-affil=Future University Hakodate
kn-affil=
affil-num=4
en-affil=Nara Institute of Science and Technology
kn-affil=
en-keyword=Virtual Reality
kn-keyword=Virtual Reality
en-keyword=Subjective sound volume
kn-keyword=Subjective sound volume
en-keyword=Visual stimuli
kn-keyword=Visual stimuli
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20251013
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Creep damage parameters based on the distribution of cavities on grain boundaries
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=When polycrystalline heat-resistant steels are subjected to static or cyclic loading at high temperatures, they can exhibit various fracture modes and processes. This paper begins by outlining representative methods for life assessment under creep-dominated conditions. It then discusses the fracture processes and the underlying mechanisms. Under creep-dominated conditions, the initiation and growth of cavities serve as the primary form of material damage, making their quantitative assessment essential. Several parameters have been proposed to evaluate cavity distributions quantitatively. However, the relationship between these parameters and the actual cavity distribution in materials, as well as their physical significance, has remained unclear. In this study, a simple cavity distribution model was employed to clarify these issues. The results suggest that the area fraction of cavities is an appropriate damage evaluation parameter for transgranular fracture, while the fraction of cavities on grain boundary line is suitable for intergranular fracture.
en-copyright=
kn-copyright=
en-aut-name=TadaNaoya
en-aut-sei=Tada
en-aut-mei=Naoya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
affil-num=1
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Creep
kn-keyword=Creep
en-keyword=cavity
kn-keyword=cavity
en-keyword=grain boundary
kn-keyword=grain boundary
en-keyword=damage parameter
kn-keyword=damage parameter
en-keyword=modelling
kn-keyword=modelling
en-keyword=geometrical analysis
kn-keyword=geometrical analysis
en-keyword=probabilistic analysis
kn-keyword=probabilistic analysis
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20251014
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Comparative analysis of interactions between five strains of Pseudomonas syringae pv. tabaci and Nicotiana benthamiana
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Pseudomonas syringae pv. tabaci 6605 (Pta 6605), the agent of wildfire disease in tobacco, has been used as a model strain for elucidating the virulence mechanisms of Pta. However, the host genes involved in resistance or susceptibility to Pta remain largely unknown. Nicotiana benthamiana is a model plant species in the Solanaceae family and is useful in functional analyses of genes. We herein compared five Pta strains (6605, 6823, 7372, 7375, and 7380) in terms of their phenotypes on medium and interactions with N. benthamiana. Pta 6605 and Pta 6823 showed more active proliferation than the other strains in a high cell density culture. Moreover, Pta 6605 exhibited markedly higher swarming motility than the other strains. In inoculated leaves of N. benthamiana, Pta 6605 and Pta 6823 caused more severe disease symptoms and proliferated to a higher cell density than the other strains. However, Pta 6823 as well as Pta 7372 and Pta 7380 induced the high accumulation of salicylic acid (SA). Moreover, the inoculations of Pta 6823 and Pta 7372 resulted in the upregulation of ethylene biosynthesis genes. On the other hand, Pta 6605 induced neither SA accumulation nor the expression of ethylene biosynthesis genes, and suppressed the expression of jasmonate biosynthesis genes. Moreover, chlorosis was clearly induced in the upper uninoculated leaves of Pta 6605-infected plants. These results suggest that Pta 6605 escapes from or suppresses plant immune systems and, thus, is the most virulent on N. benthamiana among the five strains tested.
en-copyright=
kn-copyright=
en-aut-name=NakaoYuna
en-aut-sei=Nakao
en-aut-mei=Yuna
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=AsaiShuta
en-aut-sei=Asai
en-aut-mei=Shuta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=MatsuiHidenori
en-aut-sei=Matsui
en-aut-mei=Hidenori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=IchinoseYuki
en-aut-sei=Ichinose
en-aut-mei=Yuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=KatouShinpei
en-aut-sei=Katou
en-aut-mei=Shinpei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
affil-num=1
en-affil=Graduate School of Medicine, Science and Technology, Shinshu University
kn-affil=
affil-num=2
en-affil=Graduate School of Environmental, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Graduate School of Environmental, Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Graduate School of Environmental, Natural Science and Technology, Okayama University
kn-affil=
affil-num=5
en-affil=Graduate School of Medicine, Science and Technology, Shinshu University
kn-affil=
en-keyword=Chlorosis
kn-keyword=Chlorosis
en-keyword=Nicotiana benthamiana
kn-keyword=Nicotiana benthamiana
en-keyword=Phytohormones
kn-keyword=Phytohormones
en-keyword=Pseudomonas syringae pv. tabaci
kn-keyword=Pseudomonas syringae pv. tabaci
END
start-ver=1.4
cd-journal=joma
no-vol=150
cd-vols=
no-issue=
article-no=
start-page=110530
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202506
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Surrogate-assisted motion planning and layout design of robotic cellular manufacturing systems
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A surrogate-assisted multi-objective evolutionary algorithm is proposed for simultaneous optimization of robot motion planning and layout design in robotic cellular manufacturing systems. A sequence-pair is used to represent the layout of components in a robotic cell to avoid overlapping in the evolutionary computation. The robot motion planning with Rapidly exploring Random Trees Star (RRT*) is applied to compute the total operation time of a robot arm for each layout. Non-dominated Sorting Genetic Algorithm II (NSGA-II) is used to minimize the total required layout area and the operation time for a robot arm. The proposed surrogate model can estimate the robot’s operation time with 98% of accuracy without explicit computations of the motion planning algorithm. The experimental results with a physical 6 Degree of Freedom (DOF) manipulator show that the total computation time is approximately 1/400, significantly shorter than the conventional methods.
en-copyright=
kn-copyright=
en-aut-name=KawabeTomoya
en-aut-sei=Kawabe
en-aut-mei=Tomoya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=NishiTatsushi
en-aut-sei=Nishi
en-aut-mei=Tatsushi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=LiuZiang
en-aut-sei=Liu
en-aut-mei=Ziang
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=FujiwaraTomofumi
en-aut-sei=Fujiwara
en-aut-mei=Tomofumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
affil-num=1
en-affil=Graduate School of Environmental, Life and Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Environmental, Life and Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Graduate School of Environmental, Life and Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Graduate School of Environmental, Life and Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Robotics
kn-keyword=Robotics
en-keyword=Cellular manufacturing
kn-keyword=Cellular manufacturing
en-keyword=Layout design
kn-keyword=Layout design
en-keyword=Sequence-pair
kn-keyword=Sequence-pair
en-keyword=Motion planning
kn-keyword=Motion planning
en-keyword=Surrogate optimization
kn-keyword=Surrogate optimization
en-keyword=Machine learning
kn-keyword=Machine learning
en-keyword=Artificial intelligence
kn-keyword=Artificial intelligence
END
start-ver=1.4
cd-journal=joma
no-vol=23
cd-vols=
no-issue=5
article-no=
start-page=234
end-page=249
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=2025
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Biochar-amended Sediment Microbial Fuel Cells for Water Quality Improvement in Intensive and Extensive Pond Drainages in Central Vietnam
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The use of nutrient-rich feed in shrimp farming in Central Vietnam has led to high nitrogen (N) and phosphorus (P) contents in the pond sediment. The objectives of the study were to assess the effectiveness of biochar-sediment microbial fuel cells (BC-SMFCs) in suppressing P and N release from two types of sediment in intensive (Int) and extensive (Ext) pond drainages in Central Vietnam. Single chamber SMFCs were set up and operated under open or closed-circuit (no SMFC or SMFC) conditions. Coconut shell biochar (BC) was amended to sediments at 1%. For Int-sediment, total phosphorus (TP) release was reduced by no BC-SMFCs through co-precipitation with Fe. On the other hand, BC-SMFCs did not suppress TP release because P was released from BC and organic matter decomposition was enhanced in the sediment. Application of BC enhanced organic N mineralization in the sediment. Nitrification and denitrification occurred in the overlying water, reducing mineral N concentrations. For Ext-sediment, BC addition and SMFC conditions did not affect TP and total nitrogen (TN) release because of low initial organic matter content, and less reductive condition. Our study suggested that the effect of SMFCs was masked by BC which released more P from Int-sediment to the water.
en-copyright=
kn-copyright=
en-aut-name=NguyenUyen Tu
en-aut-sei=Nguyen
en-aut-mei=Uyen Tu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=MaedaMorihiro
en-aut-sei=Maeda
en-aut-mei=Morihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=SomuraHiroaki
en-aut-sei=Somura
en-aut-mei=Hiroaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=NakaharaNozomi
en-aut-sei=Nakahara
en-aut-mei=Nozomi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=PereraGamamada Liyanage Erandi Priyangika
en-aut-sei=Perera
en-aut-mei=Gamamada Liyanage Erandi Priyangika
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=NakanoChiyu
en-aut-sei=Nakano
en-aut-mei=Chiyu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=LeHuu Tien
en-aut-sei=Le
en-aut-mei=Huu Tien
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=NishinaYuta
en-aut-sei=Nishina
en-aut-mei=Yuta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
affil-num=1
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Department of Comprehensive Technical Solutions, Okayama University
kn-affil=
affil-num=5
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=
affil-num=6
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=
affil-num=7
en-affil=Department of Education, Science and Technology Quang Tri Branch, Hue University
kn-affil=
affil-num=8
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
en-keyword=biochar
kn-keyword=biochar
en-keyword=Central Vietnam
kn-keyword=Central Vietnam
en-keyword=electricity generation
kn-keyword=electricity generation
en-keyword=redox potential
kn-keyword=redox potential
en-keyword=shrimp farming
kn-keyword=shrimp farming
END
start-ver=1.4
cd-journal=joma
no-vol=36
cd-vols=
no-issue=10
article-no=
start-page=105028
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202510
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Evaluating the effects of electrolytes on the interaction forces between alumina surfaces in polyacrylic acid solutions using atomic force microscopy
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Evaluation and control of ceramic slurry at the microscopic level are critical to ensure consistent quality in manufactured ceramics. Notably, metal ions such as Mg2+ and Al3+ are common in ceramic slurries and significantly influence the stability of particle. This study applied atomic force microscopy to investigate the interaction forces between alumina particle surfaces in the presence of different concentrations of three metal ions and polyacrylic acid (PAA), a widely used dispersant.
The attractive forces observed at low PAA concentrations were attributed to polymer bridging between alumina surfaces, whereas the repulsive forces observed at high PAA concentrations were attributed to the domination of steric repulsion between adsorbed PAA molecules. The presence of multivalent metal ions, such as Mg2+ and Al3+, modulated these interactions; an increasing ion valence induced a transition from repulsive to attractive force, primarily owing to electrostatic screening, which caused conformational collapse of the PAA chains and diminished the range of steric repulsion. Similarly, increasing the concentration of these metal ions decreased the range of repulsive forces, eventually resulting in a net attraction driven by the same electrostatic and polymer conformation mechanisms. Notably, the addition of 0.1 M AlCl3 produced an anomalous long-range attraction between surfaces that could not be explained by conventional mechanisms, such as polymer bridging or electrostatic interactions between charge domains.
en-copyright=
kn-copyright=
en-aut-name=KishimotoNaoto
en-aut-sei=Kishimoto
en-aut-mei=Naoto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=KajiRyota
en-aut-sei=Kaji
en-aut-mei=Ryota
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=TsuchiyaKatsumi
en-aut-sei=Tsuchiya
en-aut-mei=Katsumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=ImamuraKoreyoshi
en-aut-sei=Imamura
en-aut-mei=Koreyoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=IshidaNaoyuki
en-aut-sei=Ishida
en-aut-mei=Naoyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Faculty of Science and Engineering, Doshisha University
kn-affil=
affil-num=3
en-affil=Faculty of Science and Engineering, Doshisha University
kn-affil=
affil-num=4
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=5
en-affil=Faculty of Science and Engineering, Doshisha University
kn-affil=
en-keyword=Interaction force
kn-keyword=Interaction force
en-keyword=Alumina surface
kn-keyword=Alumina surface
en-keyword=Anionic polyelectrolyte
kn-keyword=Anionic polyelectrolyte
en-keyword=Coexisting electrolyte
kn-keyword=Coexisting electrolyte
en-keyword=Atomic force microscopy
kn-keyword=Atomic force microscopy
END
start-ver=1.4
cd-journal=joma
no-vol=40
cd-vols=
no-issue=3
article-no=
start-page=ME25019
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=2025
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Role of Formate Chemoreceptor in Pseudomonas syringae pv. tabaci 6605 in Tobacco Infection
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Chemotaxis is essential for infection by plant pathogenic bacteria. The causal agent of tobacco wildfire disease, Pseudomonas syringae pv. tabaci 6605 (Pta6605), is known to cause severe leaf disease and is highly motile. The requirement of chemotaxis for infection has been demonstrated through the inoculation of mutant strains lacking chemotaxis sensory component proteins. Pta6605 possesses 54 genes that encode chemoreceptors (known as methyl-accepting chemotaxis proteins, MCPs). Chemoreceptors are classified into several groups based on the type and localization of ligand-binding domains (LBD). Cache LBD-type chemoreceptors have been reported to recognize formate in several bacterial species. In the present study, we identified Cache_3 Cache_2 LBD-type Mcp26 encoded by Pta6605_RS00335 as a chemoreceptor for formate using a quantitative capillary assay, and named it McpF. Although the deletion mutant of mcpF (ΔmcpF) retained attraction to 1% yeast extract, its chemotactic response to formate was markedly reduced. Swimming and swarming motilities were also impaired in the mutant. To investigate the effects of McpF on bacterial virulence, we conducted inoculations on tobacco plants using several methods. The ΔmcpF mutant exhibited weaker virulence in flood and spray assays than wild-type and complemented strains, highlighting not only the involvement of McpF in formate recognition, but also its critical role in leaf entry during the early stages of infection.
en-copyright=
kn-copyright=
en-aut-name=NguyenPhuoc Quy Thang
en-aut-sei=Nguyen
en-aut-mei=Phuoc Quy Thang
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=WatanabeYuta
en-aut-sei=Watanabe
en-aut-mei=Yuta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=MatsuiHidenori
en-aut-sei=Matsui
en-aut-mei=Hidenori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=SakataNanami
en-aut-sei=Sakata
en-aut-mei=Nanami
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=NoutoshiYoshiteru
en-aut-sei=Noutoshi
en-aut-mei=Yoshiteru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=ToyodaKazuhiro
en-aut-sei=Toyoda
en-aut-mei=Kazuhiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=IchinoseYuki
en-aut-sei=Ichinose
en-aut-mei=Yuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
affil-num=1
en-affil=The Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=The Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=The Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=The Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=5
en-affil=The Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=6
en-affil=The Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=7
en-affil=The Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=chemoreceptor
kn-keyword=chemoreceptor
en-keyword=formate
kn-keyword=formate
en-keyword=mcpF
kn-keyword=mcpF
en-keyword=Pseudomonas syringae
kn-keyword=Pseudomonas syringae
en-keyword=virulence
kn-keyword=virulence
END
start-ver=1.4
cd-journal=joma
no-vol=12
cd-vols=
no-issue=9
article-no=
start-page=251152
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250924
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=On weapons allometry and the form of sexual selection
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The study of trait scaling with body size (allometry) has a long history, and it has been argued that positive static allometry is an indicator of directional sexual selection. However, a range of allometries exists for sexually selected traits, and modelling shows this variation can be generated by altering the form of selection (fitness functions) on the trait and/or body size. Interestingly, in all models, positive allometry appears to emerge only when there is directional selection on trait size. Here, we report on a sexually selected trait that shows strong positive static allometry and yet appears to be under stabilizing selection. This surprising finding suggests the evolution of trait scaling is even more nuanced than currently appreciated.
en-copyright=
kn-copyright=
en-aut-name=ShinoharaHironori
en-aut-sei=Shinohara
en-aut-mei=Hironori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=SharmaManmohan D.
en-aut-sei=Sharma
en-aut-mei=Manmohan D.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=PennellTanya M.
en-aut-sei=Pennell
en-aut-mei=Tanya M.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=OkadaKensuke
en-aut-sei=Okada
en-aut-mei=Kensuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=HoskenDavid J.
en-aut-sei=Hosken
en-aut-mei=David J.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
affil-num=1
en-affil=Center for Ecology and Conservation, University of Exeter, Cornwall Campus
kn-affil=
affil-num=2
en-affil=Center for Ecology and Conservation, University of Exeter, Cornwall Campus
kn-affil=
affil-num=3
en-affil=Center for Ecology and Conservation, University of Exeter, Cornwall Campus
kn-affil=
affil-num=4
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=5
en-affil=Center for Ecology and Conservation, University of Exeter, Cornwall Campus
kn-affil=
en-keyword=inbreeding
kn-keyword=inbreeding
en-keyword=selection
kn-keyword=selection
en-keyword=beetle
kn-keyword=beetle
en-keyword=Gnatocerus
kn-keyword=Gnatocerus
END
start-ver=1.4
cd-journal=joma
no-vol=42
cd-vols=
no-issue=3
article-no=
start-page=215
end-page=227
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250925
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Root-exuded sugars as drivers of rhizosphere microbiome assembly
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Sugars in root exudates play a pivotal role in shaping plant-microbe interactions in the rhizosphere, serving as carbon sources and signaling molecules that orchestrate microbial behavior, community structure, and plant resilience. Recent research has shed light on the dynamics of sugar levels in root exudates, the factors that influence their secretion, and the mechanisms by which these sugars drive microbial colonization and community assembly in the rhizosphere. Microbial communities, in turn, contribute to plant physiological changes that enhance growth and stress tolerance. While well-studied sugars such as glucose, sucrose, and fructose are known to promote chemotaxis, motility, and biofilm formation, emerging evidence suggests that less-studied sugars like arabinose and trehalose may also play significant roles in microbial interactions and stress resilience. Key challenges remain, including the accurate measurement of labile sugars that are rapidly metabolized by microbes, and the elucidation of genetic mechanisms underlying rhizosphere metabolic interactions in both host plants and microbes. Addressing these challenges will advance our understanding of sugar-mediated interactions and inform the development of sustainable agricultural innovations.
en-copyright=
kn-copyright=
en-aut-name=HemeldaNiarsi Merry
en-aut-sei=Hemelda
en-aut-mei=Niarsi Merry
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=NoutoshiYoshiteru
en-aut-sei=Noutoshi
en-aut-mei=Yoshiteru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
affil-num=1
en-affil=Department of Biology, Faculty of Mathematics and Natural Sciences, University of Indonesia
kn-affil=
affil-num=2
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=carbon sources
kn-keyword=carbon sources
en-keyword=plant-derived sugars
kn-keyword=plant-derived sugars
en-keyword=plant-microbe interactions
kn-keyword=plant-microbe interactions
en-keyword=rhizosphere
kn-keyword=rhizosphere
en-keyword=root exudate
kn-keyword=root exudate
END
start-ver=1.4
cd-journal=joma
no-vol=108
cd-vols=
no-issue=
article-no=
start-page=104508
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202506
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Introduction to the “Japanese and Western approaches to psychotrauma” symposium
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Understandings of psychotrauma have changed throughout medical history, shaped by cultural and social factors. Reviewing transcultural perspectives of psychotrauma helps understand its complexities and contextual impacts. This paper summarizes the Japan–Netherlands symposium on psychotrauma held on March 1, 2024. Despite experiencing psychological trauma from World War II and numerous natural disasters, Japan did not actively research post-traumatic stress disorder (PTSD) for nearly 50 years after the war. The Great Hanshin-Awaji Earthquake and the Tokyo subway Sarin gas attack (1995) popularized the term PTSD in Japan and triggered related research. The absence of psychotrauma research in Japan may reflect a form of state-level PTSD, characterized by avoidance. Japan’s collectivist culture, stigma against seeking psychological help, view of patience as a virtue, survivor guilt, and moral injury were potential related factors. Additionally, sociocultural factors (e.g., insufficient collective grieving and focusing on post-war reconstruction) were discussed as potential hinderances to discussing war experiences. From a European perspective, we examined how “Konzentrationslager” (KZ) syndrome, a trauma-related disorder, evolved independently into diverse conceptual frameworks, ultimately contributing to the acceptance of PTSD following its introduction in 1980. Beyond state compensation for concentration camp survivors, advocacy by feminist movements and veterans' groups increased awareness of psychotrauma across Europe, fostering scholarly research and public discourse. Both PTSD and KZ syndromes are diagnostic categories shaped by specific historical and cultural contexts and should not be regarded as simple, universally applicable medical conditions. They reflect how trauma is interpreted and responded to differently depending on cultural, political, and historical factors.
en-copyright=
kn-copyright=
en-aut-name=NagamineMasanori
en-aut-sei=Nagamine
en-aut-mei=Masanori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=NakaoTomoyo
en-aut-sei=Nakao
en-aut-mei=Tomoyo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=van BergenLeo
en-aut-sei=van Bergen
en-aut-mei=Leo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=ShigemuraJun
en-aut-sei=Shigemura
en-aut-mei=Jun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=SaitoTaku
en-aut-sei=Saito
en-aut-mei=Taku
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=van der DoesFlorentine H.S.
en-aut-sei=van der Does
en-aut-mei=Florentine H.S.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=KitanoMasato
en-aut-sei=Kitano
en-aut-mei=Masato
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=GiltayErik J.
en-aut-sei=Giltay
en-aut-mei=Erik J.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=van der WeeNic J.
en-aut-sei=van der Wee
en-aut-mei=Nic J.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=VermettenEric
en-aut-sei=Vermetten
en-aut-mei=Eric
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
affil-num=1
en-affil=Division of Behavioral Science, National Defense Medical College Research Institute
kn-affil=
affil-num=2
en-affil=Graduate School of Humanities and Social Sciences, Okayama University
kn-affil=
affil-num=3
en-affil=Freelance Medical Historian
kn-affil=
affil-num=4
en-affil=Faculty of Health Sciences, Mejiro University
kn-affil=
affil-num=5
en-affil=Division of Behavioral Science, National Defense Medical College Research Institute
kn-affil=
affil-num=6
en-affil=Department of Psychiatry, Leiden University Medical Center (LUMC)
kn-affil=
affil-num=7
en-affil=Division of Behavioral Science, National Defense Medical College Research Institute
kn-affil=
affil-num=8
en-affil=Department of Psychiatry, Leiden University Medical Center (LUMC)
kn-affil=
affil-num=9
en-affil=Department of Psychiatry, Leiden University Medical Center (LUMC)
kn-affil=
affil-num=10
en-affil=Department of Psychiatry, Leiden University Medical Center (LUMC)
kn-affil=
en-keyword=Psychotrauma
kn-keyword=Psychotrauma
en-keyword=World War II
kn-keyword=World War II
en-keyword=Japan
kn-keyword=Japan
en-keyword=Europe
kn-keyword=Europe
en-keyword=KZ syndrome
kn-keyword=KZ syndrome
en-keyword=Post-traumatic stress disorder
kn-keyword=Post-traumatic stress disorder
END
start-ver=1.4
cd-journal=joma
no-vol=79
cd-vols=
no-issue=5
article-no=
start-page=345
end-page=352
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202510
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Inhibition of Air-Exposure Stress–Induced Autolysis in Clostridium perfringens by Zn2+
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Clostridium perfringens is a pathogenic anaerobe that causes gas gangrene and food poisoning. Although autolysin-mediated reorganization of the bacterial cell wall is crucial for cell division, excessive autolysin activity induced by stressors can lead to cell lysis. In C. perfringens, air exposure is a significant stressor that causes cell lysis, and Acp (N-acetylglucosaminidase) is known to be a major autolysin. To further facilitate C. perfringens research, a technology to prevent air-induced cell lysis must be developed. This study investigated the role of Acp in air-induced autolysis and explored potential inhibitors that would prevent cell lysis during experimental procedures. Morphological analyses confirmed that Acp functions as an autolysin in C. perfringens, as acpdeficient strains exhibited filamentous growth. The mutants exhibited negligible autolysis under air-exposure stress, confirming the involvement of Acp in the autolytic process. We also evaluated the effects of various divalent cations on Acp activity in vitro and identified Zn2+ as a potent inhibitor. Brief treatment with a Zn2+- containing buffer induced dose-dependent cell elongation and autolysis inhibition in C. perfringens. These findings demonstrate that simple Zn2+ treatment before experiments stabilizes C. perfringens cells, reducing autolysis under aerobic conditions and facilitating various biological studies, except morphological analyses.
en-copyright=
kn-copyright=
en-aut-name=MatsunagaNozomu
en-aut-sei=Matsunaga
en-aut-mei=Nozomu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=EgusaSeira
en-aut-sei=Egusa
en-aut-mei=Seira
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=AonoRiyo
en-aut-sei=Aono
en-aut-mei=Riyo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=TamaiEiji
en-aut-sei=Tamai
en-aut-mei=Eiji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=HitusmotoYasuo
en-aut-sei=Hitusmoto
en-aut-mei=Yasuo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=KatayamaSeiichi
en-aut-sei=Katayama
en-aut-mei=Seiichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
affil-num=1
en-affil=Department of Life Science, Faculty of Science, Okayama University of Science
kn-affil=
affil-num=2
en-affil=Department of Life Science, Faculty of Science, Okayama University of Science
kn-affil=
affil-num=3
en-affil=Department of Medical Technology, Kagawa Prefectural University of Health Sciences
kn-affil=
affil-num=4
en-affil=Department of Infectious Disease, College of Pharmaceutical Science, Matsuyama University
kn-affil=
affil-num=5
en-affil=Department of Life Science, Faculty of Science, Okayama University of Science
kn-affil=
affil-num=6
en-affil=Department of Life Science, Faculty of Science, Okayama University of Science
kn-affil=
en-keyword=Clostridium perfringens
kn-keyword=Clostridium perfringens
en-keyword=autolysin
kn-keyword=autolysin
en-keyword=zinc
kn-keyword=zinc
en-keyword=air-exposure autolysis
kn-keyword=air-exposure autolysis
END
start-ver=1.4
cd-journal=joma
no-vol=22
cd-vols=
no-issue=5
article-no=
start-page=3933
end-page=3946
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202510
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Topology-Driven Configuration of Emulation Networks With Deterministic Templating
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Network emulation is an important component of a digital twin for verifying network behavior without impacting on the service systems. Although we need to repeatedly change network topologies and configuration settings as a part of trial and error for verification, it is not easy to reflect the change without failures because the change affects multiple devices, even if it is as simple as adding a device. We present topology-driven configuration, an idea to separate network topology and generalized configuration to make it easy to change them. Based on this idea, we aim to realize a scalable, simple, and effective configuration platform for emulation networks. We design a configuration generation method using simple and deterministic config templates with a new network parameter data model, and implement it as dot2net. We evaluate three perspectives, scalability, simplicity, and efficacy, of the proposed method using dot2net through measurement and user experiments on existing test network scenarios.
en-copyright=
kn-copyright=
en-aut-name=KobayashiSatoru
en-aut-sei=Kobayashi
en-aut-mei=Satoru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=ShiibaRyusei
en-aut-sei=Shiiba
en-aut-mei=Ryusei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=MiwaShinsuke
en-aut-sei=Miwa
en-aut-mei=Shinsuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=MiyachiToshiyuki
en-aut-sei=Miyachi
en-aut-mei=Toshiyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=FukudaKensuke
en-aut-sei=Fukuda
en-aut-mei=Kensuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
affil-num=1
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Department of Informatics, School of Multidisciplinary Sciences, The Graduate University of Advanced Studies, Sokendai
kn-affil=
affil-num=3
en-affil=StarBED Technology Center, Testbed Research, Development and Operations Laboratory, National Institute of Information and Communications Technology
kn-affil=
affil-num=4
en-affil=Strategic Planning Department, Strategic Planning Office, National Institute of Information and Communications Technology
kn-affil=
affil-num=5
en-affil=Department of Informatics, School of Multidisciplinary Sciences, The Graduate University of Advanced Studies, Sokendai
kn-affil=
en-keyword=Configuration management
kn-keyword=Configuration management
en-keyword=template
kn-keyword=template
en-keyword=emulation network
kn-keyword=emulation network
en-keyword=topology graph
kn-keyword=topology graph
END
start-ver=1.4
cd-journal=joma
no-vol=16
cd-vols=
no-issue=1
article-no=
start-page=22
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250105
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Relay Node Selection Methods for UAV Navigation Route Constructions in Wireless Multi-Hop Network Using Smart Meter Devices
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Unmanned aerial vehicles (UAVs) offer solutions to issues like traffic congestion and labor shortages. We developed a distributed UAV management system inspired by virtual circuit and datagram methods in packet-switching networks. By installing houses with wireless terminals, UAVs navigate routes in a multi-hop network, communicating with ground nodes. UAVs are treated as network packets, ground devices are treated as routers, and their connections are treated as links. Activating all nodes as relays increases control message traffic and node load. To optimize connectivity, we minimize relay nodes, connecting non-relay nodes to the nearest relay. This study proposes four relay node selection methods: random selection, two adjacency-based methods, and our innovative approach using Multipoint Relay (MPR) from the Optimized Link State Routing Protocol (OLSR). We evaluated these methods according to their route construction success rates, relay node counts, route lengths, and so on. The MPR-based method proved most effective for UAV route construction. However, fewer relay nodes increase link collisions, and we identify the minimum relay density needed to balance efficiency and conflict reduction.
en-copyright=
kn-copyright=
en-aut-name=OhkawaShuto
en-aut-sei=Ohkawa
en-aut-mei=Shuto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=UedaKiyoshi
en-aut-sei=Ueda
en-aut-mei=Kiyoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=MiyoshiTakumi
en-aut-sei=Miyoshi
en-aut-mei=Takumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=YamazakiTaku
en-aut-sei=Yamazaki
en-aut-mei=Taku
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=YamamotoRyo
en-aut-sei=Yamamoto
en-aut-mei=Ryo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=FunabikiNobuo
en-aut-sei=Funabiki
en-aut-mei=Nobuo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
affil-num=1
en-affil=Graduate School of Engineering, Nihon University
kn-affil=
affil-num=2
en-affil=Graduate School of Engineering, Nihon University
kn-affil=
affil-num=3
en-affil=College of Systems Engineering and Science, Shibaura Institute of Technology
kn-affil=
affil-num=4
en-affil=College of Systems Engineering and Science, Shibaura Institute of Technology
kn-affil=
affil-num=5
en-affil=Graduate School of Informatics and Engineering, The University of Electro-Communications
kn-affil=
affil-num=6
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=network of wireless devices
kn-keyword=network of wireless devices
en-keyword=UAV delivery
kn-keyword=UAV delivery
en-keyword=ad hoc network
kn-keyword=ad hoc network
END
start-ver=1.4
cd-journal=joma
no-vol=14
cd-vols=
no-issue=10
article-no=
start-page=417
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20251001
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A Guided Self-Study Platform of Integrating Documentation, Code, Visual Output, and Exercise for Flutter Cross-Platform Mobile Programming
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Nowadays, Flutter with the Dart programming language has become widely popular in mobile developments, allowing developers to build multi-platform applications using one codebase. An increasing number of companies are adopting these technologies to create scalable and maintainable mobile applications. Despite this increasing relevance, university curricula often lack structured resources for Flutter/Dart, limiting opportunities for students to learn it in academic environments. To address this gap, we previously developed the Flutter Programming Learning Assistance System (FPLAS), which supports self-learning through interactive problems focused on code comprehension through code-based exercises and visual interfaces. However, it was observed that many students completed the exercises without fully understanding even basic concepts, if they already had some knowledge of object-oriented programming (OOP). As a result, they may not be able to design and implement Flutter/Dart codes independently, highlighting a mismatch between the system’s outcomes and intended learning goals. In this paper, we propose a guided self-study approach of integrating documentation, code, visual output, and exercise in FPLAS. Two existing problem types, namely, Grammar Understanding Problems (GUP) and Element Fill-in-Blank Problems (EFP), are combined together with documentation, code, and output into a new format called Integrated Introductory Problems (INTs). For evaluations, we generated 16 INT instances and conducted two rounds of evaluations. The first round with 23 master students in Okayama University, Japan, showed high correct answer rates but low usability ratings. After revising the documentation and the system design, the second round with 25 fourth-year undergraduate students in the same university demonstrated high usability and consistent performances, which confirms the effectiveness of the proposal.
en-copyright=
kn-copyright=
en-aut-name=KinariSafira Adine
en-aut-sei=Kinari
en-aut-mei=Safira Adine
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=FunabikiNobuo
en-aut-sei=Funabiki
en-aut-mei=Nobuo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=AungSoe Thandar
en-aut-sei=Aung
en-aut-mei=Soe Thandar
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=KyawHtoo Htoo Sandi
en-aut-sei=Kyaw
en-aut-mei=Htoo Htoo Sandi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
affil-num=1
en-affil=Department of Information and Communication Systems, Okayama University
kn-affil=
affil-num=2
en-affil=Department of Information and Communication Systems, Okayama University
kn-affil=
affil-num=3
en-affil=Department of Information and Communication Systems, Okayama University
kn-affil=
affil-num=4
en-affil=Department of Information and Communication Systems, Okayama University
kn-affil=
en-keyword=Flutter
kn-keyword=Flutter
en-keyword=Dart
kn-keyword=Dart
en-keyword=cross-platform
kn-keyword=cross-platform
en-keyword=self-learning
kn-keyword=self-learning
en-keyword=introductory
kn-keyword=introductory
END
start-ver=1.4
cd-journal=joma
no-vol=6
cd-vols=
no-issue=3
article-no=
start-page=52
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250908
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=An Extension of Input Setup Assistance Service Using Generative AI to Unlearned Sensors for the SEMAR IoT Application Server Platform
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Nowadays, Internet of Things (IoT) application systems are broadly applied to various sectors of society for efficient management by monitoring environments using sensors, analyzing sampled data, and giving proper feedback. For their fast deployment, we have developed Smart Environmental Monitoring and Analysis in Real Time (SEMAR) as an integrated IoT application server platform and implemented the input setup assistance service using prompt engineering and a generative AI model to assist connecting sensors to SEMAR with step-by-step guidance. However, the current service cannot assist in connections of the sensors not learned by the AI model, such as newly released ones. To address this issue, in this paper, we propose an extension to the service for handling unlearned sensors by utilizing datasheets with four steps: (1) users input a PDF datasheet containing information about the sensor, (2) key specifications are extracted from the datasheet and structured into markdown format using a generative AI, (3) this data is saved to a vector database using chunking and embedding methods, and (4) the data is used in Retrieval-Augmented Generation (RAG) to provide additional context when guiding users through sensor setup. Our evaluation with five generative AI models shows that OpenAI’s GPT-4o achieves the highest accuracy in extracting specifications from PDF datasheets and the best answer relevancy (0.987), while Gemini 2.0 Flash delivers the most balanced results, with the highest overall RAGAs score (0.76). Other models produced competitive but mixed outcomes, averaging 0.74 across metrics. The step-by-step guidance function achieved a task success rate above 80%. In a course evaluation by 48 students, the system improved the student test scores, further confirming the effectiveness of our proposed extension.
en-copyright=
kn-copyright=
en-aut-name=KotamaI Nyoman Darma
en-aut-sei=Kotama
en-aut-mei=I Nyoman Darma
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=FunabikiNobuo
en-aut-sei=Funabiki
en-aut-mei=Nobuo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=PandumanYohanes Yohanie Fridelin
en-aut-sei=Panduman
en-aut-mei=Yohanes Yohanie Fridelin
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=BrataKomang Candra
en-aut-sei=Brata
en-aut-mei=Komang Candra
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=PradhanaAnak Agung Surya
en-aut-sei=Pradhana
en-aut-mei=Anak Agung Surya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=Noprianto
en-aut-sei=Noprianto
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Graduate School of Information Science and Technology, The University of Osaka
kn-affil=
affil-num=4
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=5
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=6
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Internet of Things
kn-keyword=Internet of Things
en-keyword=artificial intelligence
kn-keyword=artificial intelligence
en-keyword=Retrieval-Augmented Generation
kn-keyword=Retrieval-Augmented Generation
en-keyword=review
kn-keyword=review
en-keyword=application server platform
kn-keyword=application server platform
en-keyword=SEMAR
kn-keyword=SEMAR
en-keyword=sensor input
kn-keyword=sensor input
END
start-ver=1.4
cd-journal=joma
no-vol=16
cd-vols=
no-issue=7
article-no=
start-page=607
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250715
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A Fundamental Statistics Self-Learning Method with Python Programming for Data Science Implementations
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The increasing demand for data-driven decision making to maintain the innovations and competitiveness of organizations highlights the need for data science educations across academia and industry. At its core is a solid understanding of statistics, which is necessary for conducting a thorough analysis of data and deriving valuable insights. Unfortunately, conventional statistics learning often lacks practice in real-world applications using computer programs, causing a separation between conceptual knowledge of statistics equations and their hands-on skills. Integrating statistics learning into Python programming can convey an effective solution for this problem, where it has become essential in data science implementations, with extensive and versatile libraries. In this paper, we present a self-learning method for fundamental statistics through Python programming for data science studies. Unlike conventional approaches, our method integrates three types of interactive problems—element fill-in-blank problem (EFP), grammar-concept understanding problem (GUP), and value trace problem (VTP)—in the Programming Learning Assistant System (PLAS). This combination allows students to write code, understand concepts, and trace the output value while obtaining instant feedback so that they can improve retention, knowledge, and practical skills in learning statistics using Python programming. For evaluations, we generated 22 instances using source codes for fundamental statistics topics, and assigned them to 40 first-year undergraduate students at UPN Veteran Jawa Timur, Indonesia. Statistics analytical methods were utilized to analyze the student learning performances. The results show that a significant correlation (𝜌<0.05) exists between the students who solved our proposal and those who did not. The results confirm that it can effectively assist students in learning fundamental statistics self-learning using Python programming for data science implementations.
en-copyright=
kn-copyright=
en-aut-name=RiyantokoPrismahardi Aji
en-aut-sei=Riyantoko
en-aut-mei=Prismahardi Aji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=FunabikiNobuo
en-aut-sei=Funabiki
en-aut-mei=Nobuo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=BrataKomang Candra
en-aut-sei=Brata
en-aut-mei=Komang Candra
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=MentariMustika
en-aut-sei=Mentari
en-aut-mei=Mustika
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=DamalianaAviolla Terza
en-aut-sei=Damaliana
en-aut-mei=Aviolla Terza
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=PrasetyaDwi Arman
en-aut-sei=Prasetya
en-aut-mei=Dwi Arman
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
affil-num=1
en-affil=Department of Information and Communication Systems, Okayama University
kn-affil=
affil-num=2
en-affil=Department of Information and Communication Systems, Okayama University
kn-affil=
affil-num=3
en-affil=Department of Information and Communication Systems, Okayama University
kn-affil=
affil-num=4
en-affil=Department of Information and Communication Systems, Okayama University
kn-affil=
affil-num=5
en-affil=Department of Data Science, Universitas Pembangunan Nasional Veteran Jawa Timur
kn-affil=
affil-num=6
en-affil=Department of Data Science, Universitas Pembangunan Nasional Veteran Jawa Timur
kn-affil=
en-keyword=fundamental statistics
kn-keyword=fundamental statistics
en-keyword=self-learning method
kn-keyword=self-learning method
en-keyword=Python programming
kn-keyword=Python programming
en-keyword=data science
kn-keyword=data science
END
start-ver=1.4
cd-journal=joma
no-vol=16
cd-vols=
no-issue=7
article-no=
start-page=588
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250708
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A Map Information Collection Tool for a Pedestrian Navigation System Using Smartphone
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Nowadays, a pedestrian navigation system using a smartphone has become popular as a useful tool to reach an unknown destination. When the destination is the office of a person, a detailed map information is necessary on the target area such as the room number and location inside the building. The information can be collected from various sources including Google maps, websites for the building, and images of signs. In this paper, we propose a map information collection tool for a pedestrian navigation system. To improve the accuracy and completeness of information, it works with the four steps: (1) a user captures building and room images manually, (2) an OCR software using Google ML Kit v2 processes them to extract the sign information from images, (3) web scraping using Scrapy (v2.11.0) and crawling with Apache Nutch (v1.19) software collects additional details such as room numbers, facilities, and occupants from relevant websites, and (4) the collected data is stored in the database to be integrated with a pedestrian navigation system. For evaluations of the proposed tool, the map information was collected for 10 buildings at Okayama University, Japan, a representative environment combining complex indoor layouts (e.g., interconnected corridors, multi-floor facilities) and high pedestrian traffic, which are critical for testing real-world navigation challenges. The collected data is assessed in completeness and effectiveness. A university campus was selected as it presents a complex indoor and outdoor environment that can be ideal for testing pedestrian navigations in real-world scenarios. With the obtained map information, 10 users used the navigation system to successfully reach destinations. The System Usability Scale (SUS) results through a questionnaire confirms the high usability.
en-copyright=
kn-copyright=
en-aut-name=BatubulanKadek Suarjuna
en-aut-sei=Batubulan
en-aut-mei=Kadek Suarjuna
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=FunabikiNobuo
en-aut-sei=Funabiki
en-aut-mei=Nobuo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=BrataKomang Candra
en-aut-sei=Brata
en-aut-mei=Komang Candra
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=KotamaI Nyoman Darma
en-aut-sei=Kotama
en-aut-mei=I Nyoman Darma
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=KyawHtoo Htoo Sandi
en-aut-sei=Kyaw
en-aut-mei=Htoo Htoo Sandi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=HidayatiShintami Chusnul
en-aut-sei=Hidayati
en-aut-mei=Shintami Chusnul
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=5
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=6
en-affil=Department of Informatics, Institut Teknologi Sepuluh Nopember
kn-affil=
en-keyword=pedestrian navigation
kn-keyword=pedestrian navigation
en-keyword=map information
kn-keyword=map information
en-keyword=optical character recognition (OCR)
kn-keyword=optical character recognition (OCR)
en-keyword=smartphones
kn-keyword=smartphones
en-keyword=web scraping
kn-keyword=web scraping
en-keyword=system usability scale (SUS)
kn-keyword=system usability scale (SUS)
END
start-ver=1.4
cd-journal=joma
no-vol=14
cd-vols=
no-issue=11
article-no=
start-page=2261
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250531
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=An Automatic Code Generation Tool Using Generative Artificial Intelligence for Element Fill-in-the-Blank Problems in a Java Programming Learning Assistant System
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Presently, Java is a fundamental object-oriented programming language that can be mastered by any student in information technology or computer science. To assist both teachers and students, we developed the Java Programming Learning Assistant System (JPLAS). It offers several types of practice problems with different levels and learning goals for step-by-step self-study, where any answer is automatically marked in the system. One challenge for teachers that is addressed with JPLAS is the generation of proper exercise problems that meet learning requirements. We implemented programs for generating new problems from given source codes, as collecting and evaluating suitable codes remains time-consuming. In this paper, we present an automatic code generation tool using generative AI to solve this challenge. Prompt engineering is used to help generate an appropriate source code, and the quality is controlled by optimizing the prompt based on the outputs. For applications in JPLAS, we implement a web application system to automatically generate an element fill-in-the-blank problem (EFP) in JPLAS. For evaluation, we select the element fill-in-the-blank problem (EFP) as the target type in JPLAS and generate several instances using this tool. The results confirm the validity and effectiveness of the proposed method.
en-copyright=
kn-copyright=
en-aut-name=ZhuZihao
en-aut-sei=Zhu
en-aut-mei=Zihao
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=FunabikiNobuo
en-aut-sei=Funabiki
en-aut-mei=Nobuo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=MentariMustika
en-aut-sei=Mentari
en-aut-mei=Mustika
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=AungSoe Thandar
en-aut-sei=Aung
en-aut-mei=Soe Thandar
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=KaoWen-Chung
en-aut-sei=Kao
en-aut-mei=Wen-Chung
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=LeeYi-Fang
en-aut-sei=Lee
en-aut-mei=Yi-Fang
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
affil-num=1
en-affil=Department of Information and Communication Systems, Okayama University
kn-affil=
affil-num=2
en-affil=Department of Information and Communication Systems, Okayama University
kn-affil=
affil-num=3
en-affil=Department of Information and Communication Systems, Okayama University
kn-affil=
affil-num=4
en-affil=Department of Information and Communication Systems, Okayama University
kn-affil=
affil-num=5
en-affil=Department of Electrical Engineering, National Taiwan Normal University
kn-affil=
affil-num=6
en-affil=Department of Industrial Education, National Taiwan Normal University
kn-affil=
en-keyword=JPLAS
kn-keyword=JPLAS
en-keyword=Java programming learning
kn-keyword=Java programming learning
en-keyword=learning requirements
kn-keyword=learning requirements
en-keyword=generative AI
kn-keyword=generative AI
en-keyword=prompt engineering
kn-keyword=prompt engineering
en-keyword=quality control
kn-keyword=quality control
en-keyword=prompt optimization
kn-keyword=prompt optimization
END
start-ver=1.4
cd-journal=joma
no-vol=17
cd-vols=
no-issue=8
article-no=
start-page=333
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250725
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A Verilog Programming Learning Assistant System Focused on Basic Verilog with a Guided Learning Method
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=With continuous advancements in semiconductor technology, mastering efficient designs of high-quality and advanced chips has become an important part of science and technology education. Chip performances will determine the futures of various aspects of societies. However, novice students often encounter difficulties in learning digital chip designs using Verilog programming, a common hardware design language. An efficient self-study system for supporting them that can offer various exercise problems, such that any answer is marked automatically, is in strong demand. In this paper, we design and implement a web-based Verilog programming learning assistant system (VPLAS), based on our previous works on software programming. Using a heuristic and guided learning method, VPLAS leads students to learn the basic circuit syntax step by step, until they acquire high-quality digital integrated circuit design abilities through self-study. For evaluation, we assign the proposal to 50 undergraduate students at the National Taipei University of Technology, Taiwan, who are taking the introductory chip-design course, and confirm that their learning outcomes using VPLAS together are far better than those obtained when following a traditional method. In our final statistics, students achieved an average initial accuracy rate of over 70% on their first attempts at answering questions after learning through our website’s tutorials. With the help of the system’s instant automated grading and rapid feedback, their average accuracy rate eventually exceeded 99%. This clearly demonstrates tha
en-copyright=
kn-copyright=
en-aut-name=HsiehPin-Chieh
en-aut-sei=Hsieh
en-aut-mei=Pin-Chieh
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=FangTzu-Lun
en-aut-sei=Fang
en-aut-mei=Tzu-Lun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=JinShaobo
en-aut-sei=Jin
en-aut-mei=Shaobo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=WangYuyan
en-aut-sei=Wang
en-aut-mei=Yuyan
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=FunabikiNobuo
en-aut-sei=Funabiki
en-aut-mei=Nobuo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=FanYu-Cheng
en-aut-sei=Fan
en-aut-mei=Yu-Cheng
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
affil-num=1
en-affil=Department of Electronic Engineering, National Taipei University of Technology
kn-affil=
affil-num=2
en-affil=Department of Electronic Engineering, National Taipei University of Technology
kn-affil=
affil-num=3
en-affil=Department of Information and Communication Systems, Okayama University
kn-affil=
affil-num=4
en-affil=Department of Information and Communication Systems, Okayama University
kn-affil=
affil-num=5
en-affil=Department of Information and Communication Systems, Okayama University
kn-affil=
affil-num=6
en-affil=Department of Electronic Engineering, National Taipei University of Technology
kn-affil=
en-keyword=Verilog
kn-keyword=Verilog
en-keyword=online learning
kn-keyword=online learning
en-keyword=guided learning
kn-keyword=guided learning
en-keyword=heuristic learning
kn-keyword=heuristic learning
en-keyword=programming learning assistant system
kn-keyword=programming learning assistant system
en-keyword=Verilog web-based
kn-keyword=Verilog web-based
END
start-ver=1.4
cd-journal=joma
no-vol=17
cd-vols=
no-issue=5
article-no=
start-page=195
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250428
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=An Improved Reference Paper Collection System Using Web Scraping with Three Enhancements
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Nowadays, accessibility to academic papers has been significantly improved with electric publications on the internet, where open access has become common. At the same time, it has increased workloads in literature surveys for researchers who usually manually download PDF files and check their contents. To solve this drawback, we have proposed a reference paper collection system using a web scraping technology and natural language models. However, our previous system often finds a limited number of relevant reference papers after taking long time, since it relies on one paper search website and runs on a single thread at a multi-core CPU. In this paper, we present an improved reference paper collection system with three enhancements to solve them: (1) integrating the APIs from multiple paper search web sites, namely, the bulk search endpoint in the Semantic Scholar API, the article search endpoint in the DOAJ API, and the search and fetch endpoint in the PubMed API to retrieve article metadata, (2) running the program on multiple threads for multi-core CPU, and (3) implementing Dynamic URL Redirection, Regex-based URL Parsing, and HTML Scraping with URL Extraction for fast checking of PDF file accessibility, along with sentence embedding to assess relevance based on semantic similarity. For evaluations, we compare the number of obtained reference papers and the response time between the proposal, our previous work, and common literature search tools in five reference paper queries. The results show that the proposal increases the number of relevant reference papers by 64.38% and reduces the time by 59.78% on average compared to our previous work, while outperforming common literature search tools in reference papers. Thus, the effectiveness of the proposed system has been demonstrated in our experiments.
en-copyright=
kn-copyright=
en-aut-name=FahrudinTresna Maulana
en-aut-sei=Fahrudin
en-aut-mei=Tresna Maulana
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=FunabikiNobuo
en-aut-sei=Funabiki
en-aut-mei=Nobuo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=BrataKomang Candra
en-aut-sei=Brata
en-aut-mei=Komang Candra
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=NaingInzali
en-aut-sei=Naing
en-aut-mei=Inzali
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=AungSoe Thandar
en-aut-sei=Aung
en-aut-mei=Soe Thandar
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=MuhaiminAmri
en-aut-sei=Muhaimin
en-aut-mei=Amri
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=PrasetyaDwi Arman
en-aut-sei=Prasetya
en-aut-mei=Dwi Arman
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
affil-num=1
en-affil=Department of Information and Communication Systems, Okayama University
kn-affil=
affil-num=2
en-affil=Department of Information and Communication Systems, Okayama University
kn-affil=
affil-num=3
en-affil=Department of Information and Communication Systems, Okayama University
kn-affil=
affil-num=4
en-affil=Department of Information and Communication Systems, Okayama University
kn-affil=
affil-num=5
en-affil=Department of Information and Communication Systems, Okayama University
kn-affil=
affil-num=6
en-affil=Department of Data Science, Universitas Pembangunan Nasional Veteran Jawa Timur
kn-affil=
affil-num=7
en-affil=Department of Data Science, Universitas Pembangunan Nasional Veteran Jawa Timur
kn-affil=
en-keyword=reference paper collection
kn-keyword=reference paper collection
en-keyword=multiple API integration
kn-keyword=multiple API integration
en-keyword=PDF accessibility
kn-keyword=PDF accessibility
en-keyword=open access
kn-keyword=open access
en-keyword=multiple threads
kn-keyword=multiple threads
END
start-ver=1.4
cd-journal=joma
no-vol=135
cd-vols=
no-issue=7
article-no=
start-page=1329
end-page=1343
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250417
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Molecular polymorphisms of the nuclear and chloroplast genomes among African melon germplasms reveal abundant and unique genetic diversity, especially in Sudan
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Background and Aims Africa is rich in wild species of Cucumis and is considered one of the places of origin of melon. However, our knowledge of African melon is limited, and genetic studies using melon germplasms with wide geographical coverage are required. Here, we analysed the genetic structure of African melons, with emphasis on Sudan.
Methods Ninety-seven accessions of African melon were examined along with 77 reference accessions representing Asian melon and major horticultural groups. Molecular polymorphisms in the nuclear and chloroplast genomes were investigated using 12 RAPD, 7 SSR and 3 SNP markers. Horticultural traits, including seed size, were measured for 46 accessions, mainly from Sudan.
Key Results African melons were divided into large and small seed-types based on seed length: large seed-type from Northern Africa and small seed-type from Western and Southern Africa. Both seed types are common in Sudan. Molecular genetic diversity in these geographical populations was as high as in India, the Asian centre of melon domestication. Large seed-types from Northern Africa were assigned to Pop4 by structure analysis and had Ib cytoplasm in common with Cantalupensis, Inodorus and Flexuosus. Small seed-types were highly diversified and geographically differentiated; specifically, Pop1 with Ia cytoplasm in Southern Africa and South Asia, Pop2 with Ia in East Asia, including Conomon and Makuwa, and Pop3 with Ia or Ic in Africa. Sudanese small seed-types were grouped in Pop3, while their cytoplasm type was a mixture of Ia and Ic. Sudanese Tibish had Ic cytoplasm, which was unique in Africa, common in Western Africa and Sudan, and also found in wild or feral types.
Conclusions Melon of Ic lineage, including Tibish, originated from wild melon in the ‘western Sudan region’, and independently of melon with Ia or Ib cytoplasm, which originated in Asia. This clearly indicates the polyphyletic origin of melon.
en-copyright=
kn-copyright=
en-aut-name=ImohOdirichi Nnennaya
en-aut-sei=Imoh
en-aut-mei=Odirichi Nnennaya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=ShigitaGentaro
en-aut-sei=Shigita
en-aut-mei=Gentaro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=SugiyamaMitsuhiro
en-aut-sei=Sugiyama
en-aut-mei=Mitsuhiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=DungTran Phuong
en-aut-sei=Dung
en-aut-mei=Tran Phuong
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=TanakaKatsunori
en-aut-sei=Tanaka
en-aut-mei=Katsunori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=TakahashiMami
en-aut-sei=Takahashi
en-aut-mei=Mami
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=NishimuraKazusa
en-aut-sei=Nishimura
en-aut-mei=Kazusa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=MondenYuki
en-aut-sei=Monden
en-aut-mei=Yuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=NishidaHidetaka
en-aut-sei=Nishida
en-aut-mei=Hidetaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=GodaMashaer
en-aut-sei=Goda
en-aut-mei=Mashaer
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
en-aut-name=PitratMichel
en-aut-sei=Pitrat
en-aut-mei=Michel
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=11
ORCID=
en-aut-name=KatoKenji
en-aut-sei=Kato
en-aut-mei=Kenji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=12
ORCID=
affil-num=1
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=
affil-num=3
en-affil=Institute of Vegetable and Floriculture Science, National Agriculture and Food Research Organization (NARO)
kn-affil=
affil-num=4
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=
affil-num=5
en-affil=Faculty of Agriculture and Life Science, Hirosaki University
kn-affil=
affil-num=6
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=
affil-num=7
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=8
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=9
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=10
en-affil=Plant Genetic Resources Conservation and Research Center, Agricultural Research Corporation
kn-affil=
affil-num=11
en-affil=INRAE, UR1052, Génétique et amélioration des fruits et légumes
kn-affil=
affil-num=12
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Cucumis melo
kn-keyword=Cucumis melo
en-keyword=Africa
kn-keyword=Africa
en-keyword=chloroplast genome
kn-keyword=chloroplast genome
en-keyword=domestication
kn-keyword=domestication
en-keyword=genetic diversity
kn-keyword=genetic diversity
en-keyword=genetic resources
kn-keyword=genetic resources
en-keyword=maternal lineage
kn-keyword=maternal lineage
en-keyword=melon
kn-keyword=melon
en-keyword=phylogeny
kn-keyword=phylogeny
en-keyword=polyphyletic origin
kn-keyword=polyphyletic origin
en-keyword=seed size
kn-keyword=seed size
en-keyword=Tibish
kn-keyword=Tibish
END
start-ver=1.4
cd-journal=joma
no-vol=16
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250902
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The response to thermospermine is fine-tuned by the balance between SAC51 and LHW family proteins in Arabidopsis thaliana
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Thermospermine negatively regulates xylem formation. In Arabidopsis, SAC51 and SACL3, members of the SAC51 gene family encoding basic loop-helix-loop (bHLH) proteins play a key role in this regulation. These mRNAs contain an upstream open-reading-frame (uORF) that is highly conserved across species, and its inhibitory effect on the main ORF translation is alleviated by thermospermine. A double knockout of SAC51 and SACL3 results in thermospermine insensitivity at high concentrations that normally inhibit xylem formation and shoot growth in the wild type. Conversely, uORF mutants of SAC51, SACL3, and SACL1 suppress the excessive xylem formation and dwarf phenotype of acl5, a mutant defective in thermospermine biosynthesis. In this study, we generated genome-edited uORF mutants of SACL2 and confirmed that they partially recover the acl5 phenotype. All uORF mutants exhibited increased sensitivity to thermospermine. SACL3 represses the function of LHW, a key bHLH transcription factor required for xylem proliferation, through direct interaction. We found that the lhw mutant is also hypersensitive to thermospermine, while this sensitivity was suppressed by the sac51 sacl3 double knockout. Yeast two-hybrid assays demonstrated that all four SAC51 family members interact with LHW and its family members. These findings suggest that overaccumulation of SAC51 family proteins leads to thermospermine hypersensitivity by repressing the function of LHW family proteins, whose activity must be fine-tuned to ensure proper xylem development.
en-copyright=
kn-copyright=
en-aut-name=XuYao
en-aut-sei=Xu
en-aut-mei=Yao
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=SaraumiMitsuru
en-aut-sei=Saraumi
en-aut-mei=Mitsuru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=ToyoshimaTomohiko
en-aut-sei=Toyoshima
en-aut-mei=Tomohiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=MotoseHiroyasu
en-aut-sei=Motose
en-aut-mei=Hiroyasu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=TakahashiTaku
en-aut-sei=Takahashi
en-aut-mei=Taku
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
affil-num=1
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=5
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Arabidopsis thaliana
kn-keyword=Arabidopsis thaliana
en-keyword=LHW family
kn-keyword=LHW family
en-keyword=SAC51 family
kn-keyword=SAC51 family
en-keyword=thermospermine
kn-keyword=thermospermine
en-keyword=xylem
kn-keyword=xylem
END
start-ver=1.4
cd-journal=joma
no-vol=123
cd-vols=
no-issue=5
article-no=
start-page=e70476
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202509
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=RNA processing/modifying enzymes play key roles in the response to thermospermine in Arabidopsis thaliana
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Thermospermine is involved in negative regulation of xylem differentiation by enhancing the translation of mRNAs of the SAC51 gene family in Arabidopsis (Arabidopsis thaliana). These mRNAs contain conserved upstream open reading frames (uORFs) that interfere with the translation of the main ORF. To investigate the mechanism by which thermospermine acts in this process, we isolated mutants insensitive to thermospermine, named ‘its’. We show that the four genes responsible for these mutants, its1 to its4, encode: (i) a homolog of SPOUT RNA methyltransferase, (ii) an rRNA pseudouridine synthase CBF5/NAP57, (iii) a putative spliceosome disassembly factor STIPL1/NTR1, and (iv) a plant-specific RNA-binding protein PHIP1. These four mutants were found to have much higher levels of thermospermine than the wild-type. While all these mutants except its1 appear almost normal, they enhance the dwarf phenotype of a mutant of ACL5, which encodes thermospermine synthase, resulting in tiny plants resembling a double knockout of ACL5 and SACL3, a member of the SAC51 family. Reporter assays revealed that GUS activity from the CaMV 35S promoter-SAC51 5′-GUS fusion construct was significantly reduced in its1 and its4 or not affected in its2 and its3, while it was slightly increased in its1, its3, and its4, or not changed in its2 by thermospermine. These findings underscore the critical role of RNA processing and modification in the thermospermine-dependent translational regulation of uORF-containing transcripts.
en-copyright=
kn-copyright=
en-aut-name=SaraumiMitsuru
en-aut-sei=Saraumi
en-aut-mei=Mitsuru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=TanakaTakahiro
en-aut-sei=Tanaka
en-aut-mei=Takahiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=KoyamaDaiki
en-aut-sei=Koyama
en-aut-mei=Daiki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=NishiYoshitaka
en-aut-sei=Nishi
en-aut-mei=Yoshitaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=TakahashiYoshihiro
en-aut-sei=Takahashi
en-aut-mei=Yoshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=MotoseHiroyasu
en-aut-sei=Motose
en-aut-mei=Hiroyasu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=TakahashiTaku
en-aut-sei=Takahashi
en-aut-mei=Taku
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
affil-num=1
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Graduate School of Engineering, Kyushu Sangyo University
kn-affil=
affil-num=5
en-affil=Department of Life Science, Faculty of Life Science, Kyushu Sangyo University
kn-affil=
affil-num=6
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=7
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=thermospermine
kn-keyword=thermospermine
en-keyword=uORF
kn-keyword=uORF
en-keyword=translation
kn-keyword=translation
en-keyword=xylem
kn-keyword=xylem
en-keyword=RNA methyltransferase
kn-keyword=RNA methyltransferase
en-keyword=pseudouridine synthase
kn-keyword=pseudouridine synthase
en-keyword=SPOUT domain
kn-keyword=SPOUT domain
en-keyword=spliceosome disassembly
kn-keyword=spliceosome disassembly
END
start-ver=1.4
cd-journal=joma
no-vol=105
cd-vols=
no-issue=4
article-no=
start-page=1157
end-page=1167
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250505
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Effect of environmental conditions on seed germination and seedling growth in Cuscuta campestris
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Dodder (Cuscuta) is an obligate parasitic plant that cannot survive without a host and causes significant damage to crop yields. To understand its growth characteristics before parasitism, we examined the effects of environmental conditions on seed germination and seedling growth in Cuscuta campestris Yunck. Among various factors, we focused on the effects of light, pH, temperature, sugars, salts, hormones, amino acids and polyamines on seeds sown on agar plates. Regarding the effect of light on germination, far-red light was preferable rather than red light and the reversible response of seeds to red and far-red light was confirmed, implicating a phytochrome-mediated signaling pathway opposite to that in many seed plants. Among the amino acids, aspartic acid and alanine had a promotive effect, while histidine had an inhibitory effect on germination. We further found that, in addition to gibberellic acid, methyl jasmonate stimulated both germination and shoot elongation. While 2,4-D extended the viability of trichomes around the root cap, kinetin induced the formation of scale leaves on the shoot and undifferentiated cell clusters at the base of the shoot and root tip. Real-time reverse transcriptase PCR (RT-PCR) experiments confirmed that the expression of a putative RbcS gene for photosynthesis showed no response to light, whereas that of a Phytochrome A homolog increased in the dark. Our results indicate that some of the molecular mechanisms involved in responding to light and hormone signals are uniquely modified in dodder seedlings, providing clues for understanding the survival strategy of parasitic plants.
en-copyright=
kn-copyright=
en-aut-name=NagaoKoki
en-aut-sei=Nagao
en-aut-mei=Koki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=TakahashiTaku
en-aut-sei=Takahashi
en-aut-mei=Taku
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=YokoyamaRyusuke
en-aut-sei=Yokoyama
en-aut-mei=Ryusuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
affil-num=1
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Graduate School of Life Sciences, Tohoku University
kn-affil=
en-keyword=Cuscuta
kn-keyword=Cuscuta
en-keyword=Environmental conditions
kn-keyword=Environmental conditions
en-keyword=Germination
kn-keyword=Germination
en-keyword=Hormone responses
kn-keyword=Hormone responses
en-keyword=Seedling growth
kn-keyword=Seedling growth
END
start-ver=1.4
cd-journal=joma
no-vol=18
cd-vols=
no-issue=10
article-no=
start-page=1623
end-page=1625
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20251006
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The OsATG8–OsATG1–SPIN6 module: Linking nutrient sensing to OsRac1-mediated rice immunity via autophagy-independent mechanisms
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=KouYanjun
en-aut-sei=Kou
en-aut-mei=Yanjun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=KawanoYoji
en-aut-sei=Kawano
en-aut-mei=Yoji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
affil-num=1
en-affil=State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute
kn-affil=
affil-num=2
en-affil=Institute of Plant Science and Resources, Okayama University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=13
cd-vols=
no-issue=11
article-no=
start-page=102658
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202511
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Pathophysiology and Therapeutic Needs in Nonobstructive Hypertrophic Cardiomyopathy
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Hypertrophic cardiomyopathy (HCM) affects individuals worldwide with an estimated prevalence of over 1 in 500 individuals. Nonobstructive HCM accounts for approximately 30% to 70% of cases, is extremely heterogeneous, and is associated with a notable degree of morbidity, including daily life limitations, ventricular tachyarrhythmias, progression to heart failure, and atrial fibrillation. No approved pharmaceutical therapies target the pathophysiology of nonobstructive HCM, although several clinical trials are underway. This narrative review provides a comprehensive overview of nonobstructive HCM, focusing on epidemiology, natural history, genetics, pathophysiology, clinical manifestations, diagnosis, burden of disease, and current treatments and ongoing clinical trials.
en-copyright=
kn-copyright=
en-aut-name=DesaiMilind Y.
en-aut-sei=Desai
en-aut-mei=Milind Y.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=MauriziNiccolo
en-aut-sei=Maurizi
en-aut-mei=Niccolo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=BiaginiElena
en-aut-sei=Biagini
en-aut-mei=Elena
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=CharronPhilippe
en-aut-sei=Charron
en-aut-mei=Philippe
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=FernandesFabio
en-aut-sei=Fernandes
en-aut-mei=Fabio
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=González-LópezEsther
en-aut-sei=González-López
en-aut-mei=Esther
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=van HaelstPaul L.
en-aut-sei=van Haelst
en-aut-mei=Paul L.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=HaugaaKristina Hermann
en-aut-sei=Haugaa
en-aut-mei=Kristina Hermann
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=KramerChristopher M.
en-aut-sei=Kramer
en-aut-mei=Christopher M.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=MederBenjamin
en-aut-sei=Meder
en-aut-mei=Benjamin
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
en-aut-name=MichelsMichelle
en-aut-sei=Michels
en-aut-mei=Michelle
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=11
ORCID=
en-aut-name=OwensAnjali
en-aut-sei=Owens
en-aut-mei=Anjali
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=12
ORCID=
en-aut-name=YuasaShinsuke
en-aut-sei=Yuasa
en-aut-mei=Shinsuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=13
ORCID=
en-aut-name=ElliottPerry
en-aut-sei=Elliott
en-aut-mei=Perry
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=14
ORCID=
affil-num=1
en-affil=HCM Center, Department of Cardiovascular Medicine, Cleveland Clinic
kn-affil=
affil-num=2
en-affil=Cardiomyopathy Unit, Careggi University Hospital
kn-affil=
affil-num=3
en-affil=Cardiology Unit, Cardiac Thoracic and Vascular Department, IRCCS Azienda Ospedaliero-Universitaria di Bologna
kn-affil=
affil-num=4
en-affil=European Reference Network for Rare, Low Prevalence and Complex Diseases of the Heart (ERN GUARD-Heart)
kn-affil=
affil-num=5
en-affil=InCor, Faculdade de Medicina da Universidade de São Paulo
kn-affil=
affil-num=6
en-affil=Puerta de Hierro Majadahonda University Hospital, Health Research Institute of the Puerta de Hierro Majadahonda-Segovia de Arana University Hospital (IDIPHISA)
kn-affil=
affil-num=7
en-affil=Cardiovascular Division, Department of Medicine, University of Virginia Health
kn-affil=
affil-num=8
en-affil=Cardiovascular Division, Department of Medicine, University of Virginia Health
kn-affil=
affil-num=9
en-affil=Cardiovascular Division, Department of Medicine, University of Virginia Health
kn-affil=
affil-num=10
en-affil=Department of Internal Medicine III, Institute for Cardiomyopathies, University of Heidelberg
kn-affil=
affil-num=11
en-affil=European Reference Network for Rare, Low Prevalence and Complex Diseases of the Heart (ERN GUARD-Heart)
kn-affil=
affil-num=12
en-affil=Center for Inherited Cardiovascular Disease, Division of Cardiovascular Medicine, Department of Medicine, Perelman School of Medicine, University of Pennsylvania
kn-affil=
affil-num=13
en-affil=Department of Cardiovascular Medicine, Academic Field, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=14
en-affil=UCL Institute of Cardiovascular Science and St Bartholomew’s Hospital
kn-affil=
en-keyword=heart failure
kn-keyword=heart failure
en-keyword=hypertrophic cardiomyopathy
kn-keyword=hypertrophic cardiomyopathy
en-keyword=nonobstructive
kn-keyword=nonobstructive
END
start-ver=1.4
cd-journal=joma
no-vol=36
cd-vols=
no-issue=1
article-no=
start-page=6
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20241219
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Optical bandgap tuning in SnO2–MoS2 nanocomposites: manipulating the mass of SnO2 and MoS2 using sonochemical solution mixing
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This study investigates controlled optical bandgap tuning through precise adjustment of the SnO2 and MoS2 mass in nanocomposites. A sonochemical solution mixing method, coupled with bath sonication, is employed for the preparation of SnO2–MoS2 nanocomposite. This approach allows for comprehensive characterization using UV–Vis FTIR, XRD, EDX, Raman spectroscopies, and FESEM, providing insights into morphology, chemical, and optical properties. Increasing the SnO2 mass leads to a linear decrease in the optical bandgap energy, from 3.0 to 1.7 eV. Similarly, increasing the MoS2 mass also results in a decrease in the optical bandgap energy, with a limitation of around 2.01 eV. This work demonstrates superior control over optical bandgap by manipulating the SnO2 mass compared to MoS2, highlighting the complexities introduced by MoS2 2D nanosheets during sonication. These findings hold significant value for optoelectronic applications, emphasizing enhanced control of optical bandgap through systematic mass manipulation.
en-copyright=
kn-copyright=
en-aut-name=OngChinkhai
en-aut-sei=Ong
en-aut-mei=Chinkhai
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=LeeWeng Nam
en-aut-sei=Lee
en-aut-mei=Weng Nam
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=TanYee Seng
en-aut-sei=Tan
en-aut-mei=Yee Seng
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=OhbergPatrik
en-aut-sei=Ohberg
en-aut-mei=Patrik
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=HayashiYasuhiko
en-aut-sei=Hayashi
en-aut-mei=Yasuhiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=NishikawaTakeshi
en-aut-sei=Nishikawa
en-aut-mei=Takeshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=YapYuenkiat
en-aut-sei=Yap
en-aut-mei=Yuenkiat
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
affil-num=1
en-affil=School of Engineering and Physical Sciences, Heriot-Watt University Malaysia
kn-affil=
affil-num=2
en-affil=Heriot-Watt Global College, Heriot-Watt University Malaysia
kn-affil=
affil-num=3
en-affil=Sunway Biofunctional Molecules Discovery Centre, School of Medical and Life Sciences, Sunway University
kn-affil=
affil-num=4
en-affil=School of Engineering and Physical Sciences, Institute of Photonics and Quantum Sciences, Heriot-Watt University
kn-affil=
affil-num=5
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=6
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=7
en-affil=Heriot-Watt Global College, Heriot-Watt University Malaysia
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=58
cd-vols=
no-issue=2
article-no=
start-page=196
end-page=212
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20240228
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Influence of Dilution Upon the Ultraviolet-Visible Peak Absorbance and Optical Bandgap Estimation of Tin(IV) Oxide and Tin(IV) Oxide-Molybdenum(IV) Sulfide Solutions
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The study investigated the constraints associated with the dilution technique in determining the optical bandgap of nanoparticle dispersion and modified nanocomposites, utilizing ultraviolet-visible absorbance spectra and Tauc plot analysis. A case study involving SnO2 dispersion and SnO2-MoS2 nanocomposite solutions, prepared through the direct solution mixing method, was conducted to assess the implications of dilution upon the absorbance spectra and bandgap estimation. The results emphasize the considerable impact of the dilution technique on the measured optical bandgap, demonstrating that higher dilution factors lead to shift in bandgap values. Furthermore, the study highlights that dilution can induce variations in the average nanoparticle sizes due to agglomeration, thereby influencing bandgap estimation. In the context of nanocomposites, the interaction between SnO2 nanoparticles and exfoliated MoS2 nanosheets diminishes with increasing dilution, leading to the estimated optical bandgap being primarily attributable to SnO2 nanoparticles alone. These observations underscore the necessity for caution when employing the dilution technique for bandgap estimation in nanoparticles dispersion and nanocomposites, offering valuable insights for researchers and practitioners in the field.
en-copyright=
kn-copyright=
en-aut-name=OngChin Khai
en-aut-sei=Ong
en-aut-mei=Chin Khai
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=LeeWeng Nam
en-aut-sei=Lee
en-aut-mei=Weng Nam
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=KhalidMohammad
en-aut-sei=Khalid
en-aut-mei=Mohammad
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=Mohd AbdahMuhammad Amirul Aizat
en-aut-sei=Mohd Abdah
en-aut-mei=Muhammad Amirul Aizat
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=OhbergPatrik
en-aut-sei=Ohberg
en-aut-mei=Patrik
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=LimLing Hong
en-aut-sei=Lim
en-aut-mei=Ling Hong
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=HayashiYasuhiko
en-aut-sei=Hayashi
en-aut-mei=Yasuhiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=NishikawaTakeshi
en-aut-sei=Nishikawa
en-aut-mei=Takeshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=YapYuenkiat
en-aut-sei=Yap
en-aut-mei=Yuenkiat
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
affil-num=1
en-affil=School of Engineering and Physical Sciences, Heriot-Watt University Malaysia
kn-affil=
affil-num=2
en-affil=Heriot-Watt Global College, Heriot-Watt University Malaysia
kn-affil=
affil-num=3
en-affil=Sunway Centre for Electrochemical Energy and Sustainable Technology (SCEEST), School of Engineering and Technology, Sunway University
kn-affil=
affil-num=4
en-affil=Sunway Centre for Electrochemical Energy and Sustainable Technology (SCEEST), School of Engineering and Technology, Sunway University
kn-affil=
affil-num=5
en-affil=Institute of Photonics and Quantum Sciences, School of Engineering and Physical Sciences, Heriot-Watt University
kn-affil=
affil-num=6
en-affil=Heriot-Watt Global College, Heriot-Watt University Malaysia
kn-affil=
affil-num=7
en-affil=Graduate School of Natural Science and Technology, Faculty of Engineering, Okayama University
kn-affil=
affil-num=8
en-affil=Graduate School of Natural Science and Technology, Faculty of Engineering, Okayama University
kn-affil=
affil-num=9
en-affil=Heriot-Watt Global College, Heriot-Watt University Malaysia
kn-affil=
en-keyword=Colorimetry
kn-keyword=Colorimetry
en-keyword=nanocomposite
kn-keyword=nanocomposite
en-keyword=optical bandgap
kn-keyword=optical bandgap
en-keyword=tin(IV) oxide, molybdenum disulfide, spectrophotometry
kn-keyword=tin(IV) oxide, molybdenum disulfide, spectrophotometry
END
start-ver=1.4
cd-journal=joma
no-vol=76
cd-vols=
no-issue=9
article-no=
start-page=4815
end-page=4837
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202511
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Spatiotemporal evolution of ecosystem carbon storage under land use/land cover dynamics in the coastal region of Central Vietnam
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Ecosystem carbon storage is a cost-effective strategy for global climate change mitigation, and its fluctuation is markedly shaped by land use/land cover (LULC) dynamics. Taking Danang city as an example of Central Coastal Vietnam, this study aims to assess LULC changes and analyze the spatiotemporal evolution of carbon storage from 2023 to 2050 under four LULC change scenarios, including natural trend scenario (NTS), ecological protection scenario (EPS), economic development scenario (EDS), and cropland protection scenario (CPS), by integrating the support vector machine-cellular automata-Markov (SVM-CA-Markov) model and the InVEST model. The Optimal Parameters-based Geographical Detector (OPGD) model was subsequently employed to elucidate the impacts of driving factors on the spatial distribution of carbon storage. The results showed that, from 2007 to 2023, Danang city experienced a dramatic back-and-forth transformation between LULC types, with the predominant transitions being from natural forest to acacia tree-dominated plantation forest (6492.31 ha), and from cropland to settlements, acacia tree-dominated plantation forest, and other land (5483.05 ha, 3763.66 ha, 2762.35 ha, respectively). Between 2023 and 2050, LULC transformations in Danang city are projected to yield varying degrees of carbon storage levels across different scenarios. Specifically, carbon storage is anticipated to dwindle by 0.221 Mt, 0.223 Mt, and 0.298 Mt under NTS, EDS, and CPS, respectively, while enhancing by 0.141 Mt under EPS. Regarding the spatial distribution of carbon storage, high values will be chiefly found in the western high-elevation mountainous region, while low values will be concentrated mostly in the eastern lower-lying areas of the city. Additionally, elevation and temperature acted as the two most significant driving factors influencing the spatial distribution of carbon storage, with Q values of 0.88 and 0.86 (p-value < 0.05), respectively. For interaction detection, the combination of elevation and soil exhibited a synergistic reinforcement effect on the spatial partitioning of carbon storage, with a high Q value of 0.9566 (p-value < 0.05). Our study highlights the necessity of ecological conservation measures in Danang city in the on-track pursuit of national net-zero carbon emissions by 2050.
en-copyright=
kn-copyright=
en-aut-name=HoViet Hoang
en-aut-sei=Ho
en-aut-mei=Viet Hoang
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=MoritaHidenori
en-aut-sei=Morita
en-aut-mei=Hidenori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=HoThanh Ha
en-aut-sei=Ho
en-aut-mei=Thanh Ha
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=BachoferFelix
en-aut-sei=Bachofer
en-aut-mei=Felix
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
affil-num=1
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=University of Agriculture and Forestry, Hue University
kn-affil=
affil-num=4
en-affil=German Aerospace Center (DLR), Earth Observation Center
kn-affil=
en-keyword=Carbon sequestration
kn-keyword=Carbon sequestration
en-keyword=Scenario-based modeling
kn-keyword=Scenario-based modeling
en-keyword=Remote sensing
kn-keyword=Remote sensing
en-keyword=Spatial autocorrelation analysis
kn-keyword=Spatial autocorrelation analysis
END
start-ver=1.4
cd-journal=joma
no-vol=1019
cd-vols=
no-issue=
article-no=
start-page=A22
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250918
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Experimental and numerical study on the inertial migration of hydrogel particles suspended in square channel flows
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The inertial migration of hydrogel particles suspended in a Newtonian fluid flowing through a square channel is studied both experimentally and numerically. Experimental results demonstrate significant differences in the focusing positions of the deformable and rigid particles, highlighting the role of particle deformability in inertial migration. At low Reynolds numbers (Re), hydrogel particles migrate towards the centre of the channel cross-section, whereas the rigid spheres exhibit negligible lateral motion. At finite Re, they focus at four points along the diagonals in the downstream cross-section, in contrast to the rigid particles which focus near the centre of the channel face at similar Re . Numerical simulations using viscous hyperelastic particles as a model for hydrogel particles reproduced the experimental results for the particle distribution with an appropriate Young’s modulus of the hyperelastic particles. Further numerical simulations over a broader range of Re and the capillary number (Ca) reveal various focusing patterns of the particles in the channel cross-section. The phase transitions between them are discussed in terms of the inertial lift and the lift due to particle deformation, which would act in the direction towards lower shear. The stability of the channel centre is analysed using an asymptotic expansion approach to the migration force at low Re and Ca. The theoretical analysis predicts the critical condition for the transition, which is consistent with the direct numerical simulation. These experimental, numerical and theoretical results contribute to a deeper understanding of inertial migration of deformable particles.
en-copyright=
kn-copyright=
en-aut-name=HirohataYuma
en-aut-sei=Hirohata
en-aut-mei=Yuma
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=SaiKazusa
en-aut-sei=Sai
en-aut-mei=Kazusa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=TangeYuki
en-aut-sei=Tange
en-aut-mei=Yuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=NishiyamaTomohiro
en-aut-sei=Nishiyama
en-aut-mei=Tomohiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=MinatoHaruka
en-aut-sei=Minato
en-aut-mei=Haruka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=SuzukiDaisuke
en-aut-sei=Suzuki
en-aut-mei=Daisuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=ItanoTomoaki
en-aut-sei=Itano
en-aut-mei=Tomoaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=SugiyamaKazuyasu
en-aut-sei=Sugiyama
en-aut-mei=Kazuyasu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=Sugihara-SekiMasako
en-aut-sei=Sugihara-Seki
en-aut-mei=Masako
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
affil-num=1
en-affil=Graduate School of Engineering Science, The University of Osaka
kn-affil=
affil-num=2
en-affil=Department of Pure and Applied Physics, Kansai University
kn-affil=
affil-num=3
en-affil=Department of Pure and Applied Physics, Kansai University
kn-affil=
affil-num=4
en-affil=Department of Pure and Applied Physics, Kansai University
kn-affil=
affil-num=5
en-affil=Graduate School of Environmental Life Natural Science and Technology, Okayama University
kn-affil=
affil-num=6
en-affil=Graduate School of Environmental Life Natural Science and Technology, Okayama University
kn-affil=
affil-num=7
en-affil=Department of Pure and Applied Physics, Kansai University
kn-affil=
affil-num=8
en-affil=Graduate School of Engineering Science, The University of Osaka
kn-affil=
affil-num=9
en-affil=Department of Pure and Applied Physics, Kansai University
kn-affil=
en-keyword=flow-structure interactions
kn-keyword=flow-structure interactions
en-keyword=microfluidics
kn-keyword=microfluidics
en-keyword=particle/fluid flow
kn-keyword=particle/fluid flow
END
start-ver=1.4
cd-journal=joma
no-vol=19
cd-vols=
no-issue=5
article-no=
start-page=939
end-page=948
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250905
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Study on an Effective Coolant Supply Method in the Side Plunge Grinding Process
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Grinding is widely used for finishing components with journal and thrust surfaces, such as crankshafts. Side-plunge grinding enables the simultaneous finishing of thrust and cylindrical surfaces in a single plunge. However, compared to cylindrical grinding, it involves a larger contact area between the grinding wheel and the workpiece, leading to increased heat generation. In particular, poor coolant penetration near internal corners can degrade surface quality, potentially causing stress concentrations and cracks. To enhance coolant effectiveness in side-plunge grinding, this study installs a high-pressure nozzle that supplies coolant from the side of the grinding wheel. The effectiveness of this setup is experimentally verified. Additionally, the distribution of coolant flow within the contact area between the grinding wheel and the workpiece is measured to determine the optimal nozzle position for efficient coolant delivery. The nozzle’s performance is evaluated by measuring the workpiece surface temperature using a wire/workpiece thermocouple, the amount of coolant discharged from the grinding wheel, and the residual stress distribution. The results show that coolant penetrates the grinding wheel and effectively reaches the grinding zone, enhancing the cooling effect. This study clarifies the relationship between effective coolant supply and the position of the side nozzle. Considering physical constraints, such as potential interference during grinding, the optimal nozzle location is as close as possible to both the edge of the grinding wheel and the workpiece. This positioning ensures maximum coolant delivery, reduces grinding temperature, and helps suppress drastic variations in residual stress.
en-copyright=
kn-copyright=
en-aut-name=GaoLingxiao
en-aut-sei=Gao
en-aut-mei=Lingxiao
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=FujimotoTaichi
en-aut-sei=Fujimoto
en-aut-mei=Taichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=KodamaHiroyuki
en-aut-sei=Kodama
en-aut-mei=Hiroyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=OhashiKazuhito
en-aut-sei=Ohashi
en-aut-mei=Kazuhito
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=grinding
kn-keyword=grinding
en-keyword=thrust surface
kn-keyword=thrust surface
en-keyword=grinding temperature
kn-keyword=grinding temperature
en-keyword=coolant flow
kn-keyword=coolant flow
en-keyword=residual stress
kn-keyword=residual stress
END
start-ver=1.4
cd-journal=joma
no-vol=16
cd-vols=
no-issue=1
article-no=
start-page=8226
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250925
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Persistent homology elucidates hierarchical structures responsible for mechanical properties in covalent amorphous solids
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Understanding how atomic-level structures govern the mechanical properties of amorphous materials remains a fundamental challenge in solid-state physics. Under mechanical loading, amorphous materials exhibit simple affine and spatially inhomogeneous nonaffine displacements that contribute to the elastic modulus through the Born (affine) and nonaffine terms, respectively. The differences between soft local structures characterized by small Born terms or large nonaffine displacements have yet to be elucidated. This challenge is particularly complex in covalent amorphous materials such as silicon, where the medium-range order (MRO) plays a crucial role in the network structure. To address these issues, we combined molecular dynamics simulations with persistent homology analysis. Our results reveal that local structures with small Born terms are governed by short-range characteristics, whereas those with large nonaffine displacements exhibit hierarchical structures in which short-range disorder is embedded within the MRO. These hierarchical structures are also strongly correlated with low-energy localized vibrational excitations. Our findings demonstrate that the mechanical responses and dynamic properties of covalent amorphous materials are intrinsically linked to the MRO, providing a framework for understanding and tailoring their properties.
en-copyright=
kn-copyright=
en-aut-name=MinamitaniEmi
en-aut-sei=Minamitani
en-aut-mei=Emi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=NakamuraTakenobu
en-aut-sei=Nakamura
en-aut-mei=Takenobu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=ObayashiIppei
en-aut-sei=Obayashi
en-aut-mei=Ippei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=MizunoHideyuki
en-aut-sei=Mizuno
en-aut-mei=Hideyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
affil-num=1
en-affil=SANKEN, The University of Osaka
kn-affil=
affil-num=2
en-affil=Department of Materials and Chemistry Materials DX Research Center, National Institute of Advanced Industrial Science and Technology (AIST)
kn-affil=
affil-num=3
en-affil=Center for Artificial Intelligence and Mathematical Data Science, Okayama University
kn-affil=
affil-num=4
en-affil=Graduate School of Arts and Sciences, The University of Tokyo
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=15
cd-vols=
no-issue=1
article-no=
start-page=20056
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250612
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Pharmacokinetics and the effectiveness of pyrogen-free bioabsorbable wet adhesives
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Bioabsorbable materials are essential for advanced therapies, including surgical sealing, cell therapy, and drug delivery. Natural bioabsorbable materials, including collagen and hyaluronic acid, have better biocompatibility than synthetic bioabsorbable polymers; however, they are mainly derived from animals, presenting infection risks. Non-animal origin polymers have a lower molecular weight than those of animal origins. Their viscosity increases with increase in molecular weight, making endotoxin removal difficult. Here, using the phosphoryl chloride disposal method, we present a strategy for synthesizing pyrogen-free bioabsorbable adhesives with controlled molecular weight. Phosphopullulan, a polysaccharide derivative, had less than detectable endotoxin levels and controllable average molecular weight of approximately 300,000 to over 1,400,000. Furthermore, it is important to ensure the safety as well as efficacy of bio-implantable materials. We have evaluated the biosafety of polysaccharide derivatives we are developing, and have examined their cell phagocytosis and pharmacokinetics in vitro and in vivo, and have confirmed that they are safe. We have also evaluated their adhesion to wet tissue adhesions and confirmed that they leak less than existing materials.
en-copyright=
kn-copyright=
en-aut-name=OshimaRisa
en-aut-sei=Oshima
en-aut-mei=Risa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=YoshiharaKumiko
en-aut-sei=Yoshihara
en-aut-mei=Kumiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=NakanishiKo
en-aut-sei=Nakanishi
en-aut-mei=Ko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=AkasakaTsukasa
en-aut-sei=Akasaka
en-aut-mei=Tsukasa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=ShimojiShinji
en-aut-sei=Shimoji
en-aut-mei=Shinji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=NakamuraTeppei
en-aut-sei=Nakamura
en-aut-mei=Teppei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=OkiharaTakumi
en-aut-sei=Okihara
en-aut-mei=Takumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=NakamuraMariko
en-aut-sei=Nakamura
en-aut-mei=Mariko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=MatsukawaAkihiro
en-aut-sei=Matsukawa
en-aut-mei=Akihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=TamadaIkkei
en-aut-sei=Tamada
en-aut-mei=Ikkei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
en-aut-name=Van MeerbeekBart
en-aut-sei=Van Meerbeek
en-aut-mei=Bart
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=11
ORCID=
en-aut-name=SugayaTsutomu
en-aut-sei=Sugaya
en-aut-mei=Tsutomu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=12
ORCID=
en-aut-name=YoshidaYasuhiro
en-aut-sei=Yoshida
en-aut-mei=Yasuhiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=13
ORCID=
affil-num=1
en-affil=Department of Periodontology, Faculty of Dental Medicine, Hokkaido University
kn-affil=
affil-num=2
en-affil=Department of Pathology and Experimental Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=3
en-affil=Department of Biomaterials and Bioengineering, Faculty of Dental Medicine, Hokkaido University
kn-affil=
affil-num=4
en-affil=Department of Biomaterials and Bioengineering, Faculty of Dental Medicine, Hokkaido University
kn-affil=
affil-num=5
en-affil=Department of Periodontology, Faculty of Dental Medicine, Hokkaido University
kn-affil=
affil-num=6
en-affil=Department of Applied Veterinary Science, Faculty of Veterinary Medicine, Hokkaido University
kn-affil=
affil-num=7
en-affil=Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=8
en-affil=Department of Clinical Psychology, School of Clinical Psychology, Kyushu University of Medical and Science
kn-affil=
affil-num=9
en-affil=Department of Pathology and Experimental Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=10
en-affil=Department of Plastic and Reconstructive Surgery, Tokyo Metropolitan Children’s Medical Center
kn-affil=
affil-num=11
en-affil=BIOMAT, Department of Oral Health Sciences, & UZ Leuven, Dentistry, KU Leuven
kn-affil=
affil-num=12
en-affil=Department of Periodontology, Faculty of Dental Medicine, Hokkaido University
kn-affil=
affil-num=13
en-affil=Department of Biomaterials and Bioengineering, Faculty of Dental Medicine, Hokkaido University
kn-affil=
en-keyword=Phosphopullulan
kn-keyword=Phosphopullulan
en-keyword=Polysaccharide
kn-keyword=Polysaccharide
en-keyword=ADME
kn-keyword=ADME
en-keyword=Animal study
kn-keyword=Animal study
en-keyword=Endodontic sealer
kn-keyword=Endodontic sealer
END
start-ver=1.4
cd-journal=joma
no-vol=16
cd-vols=
no-issue=1
article-no=
start-page=3643
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250417
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Fully-gapped superconductivity with rotational symmetry breaking in pressurized kagome metal CsV3Sb5
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The discovery of the kagome metal CsV3Sb5 has generated significant interest in its complex physical properties, particularly its superconducting behavior under different pressures, though its nature remains debated. Here, we performed low-temperature, high-pressure 121/123Sb nuclear quadrupole resonance (NQR) measurements to explore the superconducting pairing symmetry in CsV3Sb5. At ambient pressure, we found that the spin-lattice relaxation rate 1/T1 exhibits a kink at T ~ 0.4 Tc within the superconducting state and follows a T3 variation as temperature further decreases. This suggests the presence of two superconducting gaps with line nodes in the smaller one. As pressure increases beyond Pc ~ 1.85 GPa, where the charge-density wave phase is completely suppressed, 1/T1 shows no Hebel-Slichter peak just below Tc, and decreases rapidly, even faster than T5, indicating that the gap is fully opened for pressures above Pc. In this high pressure region, the angular dependence of the in-plane upper critical magnetic field Hc2 breaks the C6 rotational symmetry. We propose the s + id pairing at P > Pc which explains both the 1/T1 and Hc2 behaviors. Our findings indicate that CsV3Sb5 is an unconventional superconductor and its superconducting state is even more exotic at high pressures.
en-copyright=
kn-copyright=
en-aut-name=FengX. Y.
en-aut-sei=Feng
en-aut-mei=X. Y.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=ZhaoZ.
en-aut-sei=Zhao
en-aut-mei=Z.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=LuoJ.
en-aut-sei=Luo
en-aut-mei=J.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=ZhouY. Z.
en-aut-sei=Zhou
en-aut-mei=Y. Z.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=YangJ.
en-aut-sei=Yang
en-aut-mei=J.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=FangA. F.
en-aut-sei=Fang
en-aut-mei=A. F.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=YangH. T.
en-aut-sei=Yang
en-aut-mei=H. T.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=GaoH.-J.
en-aut-sei=Gao
en-aut-mei=H.-J.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=ZhouR.
en-aut-sei=Zhou
en-aut-mei=R.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=ZhengGuo-qing
en-aut-sei=Zheng
en-aut-mei=Guo-qing
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
affil-num=1
en-affil=Institute of Physics, Chinese Academy of Sciences, and BeijingNational Laboratory for CondensedMatter Physics
kn-affil=
affil-num=2
en-affil=Institute of Physics, Chinese Academy of Sciences, and BeijingNational Laboratory for CondensedMatter Physics
kn-affil=
affil-num=3
en-affil=Institute of Physics, Chinese Academy of Sciences, and BeijingNational Laboratory for CondensedMatter Physics
kn-affil=
affil-num=4
en-affil=Institute of Physics, Chinese Academy of Sciences, and BeijingNational Laboratory for CondensedMatter Physics
kn-affil=
affil-num=5
en-affil=Institute of Physics, Chinese Academy of Sciences, and BeijingNational Laboratory for CondensedMatter Physics
kn-affil=
affil-num=6
en-affil=
kn-affil=
affil-num=7
en-affil=Institute of Physics, Chinese Academy of Sciences, and BeijingNational Laboratory for CondensedMatter Physics
kn-affil=
affil-num=8
en-affil=Institute of Physics, Chinese Academy of Sciences, and BeijingNational Laboratory for CondensedMatter Physics
kn-affil=
affil-num=9
en-affil=Institute of Physics, Chinese Academy of Sciences, and BeijingNational Laboratory for CondensedMatter Physics
kn-affil=
affil-num=10
en-affil=Department of Physics, Okayama University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=11
cd-vols=
no-issue=38
article-no=
start-page=eadv9952
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250919
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Polymeric microwave rectifiers enabled by monolayer-thick ionized donors
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Solution processing of polymeric semiconductors provides a facile way to fabricate functional diodes. However, energy barriers at metal-semiconductor interfaces often limit their performance. Here, we report rectifying polymer diodes with markedly modified energy-level alignments. The gold electrode surface was treated with a dimeric metal complex, which resulted in a shallow work function of 3.7 eV by forming a monolayer-thick ionized donor layer. When a polymeric semiconductor was coated on the treated electrode, most of the ionized donors remained at the metal-semiconductor interface. The confined ionized donors with the ideal thickness enabled fabrication of a polymer diode with a forward current density of over 100 A cm−2. Furthermore, a power conversion efficiency of 7.9% was observed for rectification at a microwave frequency of 920 MHz, which is orders of magnitude higher than that reported for organic diodes. Our findings will pave a way to solution-processed high-frequency and high-power devices.
en-copyright=
kn-copyright=
en-aut-name=OsakabeNobutaka
en-aut-sei=Osakabe
en-aut-mei=Nobutaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=HerJeongeun
en-aut-sei=Her
en-aut-mei=Jeongeun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=KanetaTakahiro
en-aut-sei=Kaneta
en-aut-mei=Takahiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=TajimaAkiko
en-aut-sei=Tajima
en-aut-mei=Akiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=LonghiElena
en-aut-sei=Longhi
en-aut-mei=Elena
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=TangKan
en-aut-sei=Tang
en-aut-mei=Kan
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=FujimoriKazuhiro
en-aut-sei=Fujimori
en-aut-mei=Kazuhiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=BarlowStephen
en-aut-sei=Barlow
en-aut-mei=Stephen
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=MarderSeth R.
en-aut-sei=Marder
en-aut-mei=Seth R.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=WatanabeShun
en-aut-sei=Watanabe
en-aut-mei=Shun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
en-aut-name=TakeyaJun
en-aut-sei=Takeya
en-aut-mei=Jun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=11
ORCID=
en-aut-name=YamashitaYu
en-aut-sei=Yamashita
en-aut-mei=Yu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=12
ORCID=
affil-num=1
en-affil=Material Innovation Research Center (MIRC) and Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo
kn-affil=
affil-num=2
en-affil=Material Innovation Research Center (MIRC) and Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo
kn-affil=
affil-num=3
en-affil=Material Innovation Research Center (MIRC) and Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo
kn-affil=
affil-num=4
en-affil=Material Innovation Research Center (MIRC) and Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo
kn-affil=
affil-num=5
en-affil=School of Chemistry and Biochemistry and Center for Organic Photonics and Electronics, Georgia Institute of Technology
kn-affil=
affil-num=6
en-affil=Renewable and Sustainable Energy Institute, University of Colorado Boulder
kn-affil=
affil-num=7
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=8
en-affil=School of Chemistry and Biochemistry and Center for Organic Photonics and Electronics, Georgia Institute of Technology
kn-affil=
affil-num=9
en-affil=School of Chemistry and Biochemistry and Center for Organic Photonics and Electronics, Georgia Institute of Technology
kn-affil=
affil-num=10
en-affil=Material Innovation Research Center (MIRC) and Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo
kn-affil=
affil-num=11
en-affil=Material Innovation Research Center (MIRC) and Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo
kn-affil=
affil-num=12
en-affil=Material Innovation Research Center (MIRC) and Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=1333
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250816
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Phosphorylated pullulan as a local drug delivery matrix for cationic antibacterial chemicals to prevent oral biofilm
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Background Preventing oral infections, such as oral caries and periodontal disease, helps reduce the risks of various systemic diseases. In this study, the polysaccharide pullulan produced by the black yeast Aureobasidium pullulans was modified in combination with the cationic surfactant cetylpyridinium chloride (CPC) to create a local drug delivery system, and its antibacterial potential on oral bacteria was examined in vitro.
Methods Pullulan was phosphorylated at the CH2OH residue of α6 in the maltotriose structure and mixed with CPC. Bacterial attachment of cariogenic Streptococcus mutans on hydroxyapatite plates (HAPs) treated with the phosphorylated pullulan (PP) and CPC compound (0.01% PP and 0.001– 0.03% CPC, and vice versa) was assessed by observing bacteria using a field emission scanning electron microscope (FE-SEM) and quantified through 16 S rRNA amplification via real-time polymerase chain reaction (PCR). Additionally, the quartz crystal microbalance (QCM) method was employed to evaluate the sustained release of CPC.
Results PP-CPC compound maintained significant bactericidal activity even at 0.01%, which is one-fifth of the conventional applicable concentration of CPC. Additionally, a residual mixture was detected by the hydroxyapatite sensor of the crystal oscillator microbalance detector, suggesting an unknown molecular interaction that enables the sustained release of CPC after attachment to hydroxyapatite.
Conclusions The combination of PP and CPC may contribute to the low concentration and effective prevention of oral infections, such as dental caries.
en-copyright=
kn-copyright=
en-aut-name=Namba-KoideNaoko
en-aut-sei=Namba-Koide
en-aut-mei=Naoko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=YoshidaYasuhiro
en-aut-sei=Yoshida
en-aut-mei=Yasuhiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=NagaokaNoriyuki
en-aut-sei=Nagaoka
en-aut-mei=Noriyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=OkiharaTakumi
en-aut-sei=Okihara
en-aut-mei=Takumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=KawataYusuke
en-aut-sei=Kawata
en-aut-mei=Yusuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=ItoMasahiro
en-aut-sei=Ito
en-aut-mei=Masahiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=ItoTakashi
en-aut-sei=Ito
en-aut-mei=Takashi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=Takeuchi-HatanakaKazu
en-aut-sei=Takeuchi-Hatanaka
en-aut-mei=Kazu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=Shinoda-ItoYuki
en-aut-sei=Shinoda-Ito
en-aut-mei=Yuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=OmoriKazuhiro
en-aut-sei=Omori
en-aut-mei=Kazuhiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
en-aut-name=YamamotoTadashi
en-aut-sei=Yamamoto
en-aut-mei=Tadashi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=11
ORCID=
en-aut-name=TakashibaShogo
en-aut-sei=Takashiba
en-aut-mei=Shogo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=12
ORCID=
affil-num=1
en-affil=Department of Periodontics and Endodontics, Division of Dentistry, Okayama University Hospital
kn-affil=
affil-num=2
en-affil=Department of Biomaterials and Bioengineering, Faculty of Dental Medicine, Hokkaido University
kn-affil=
affil-num=3
en-affil=Advanced Research Center for Oral and Craniofacial Sciences, Okayama University Dental School
kn-affil=
affil-num=4
en-affil=Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=5
en-affil=Department of Periodontics and Endodontics, Division of Dentistry, Okayama University Hospital
kn-affil=
affil-num=6
en-affil=Department of Periodontics and Endodontics, Division of Dentistry, Okayama University Hospital
kn-affil=
affil-num=7
en-affil=Center for Innovative Clinical Medicine, Okayama University Hospital
kn-affil=
affil-num=8
en-affil=Department of Periodontics and Endodontics, Division of Dentistry, Okayama University Hospital
kn-affil=
affil-num=9
en-affil=Department of Pathophysiology - Periodontal Science, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=10
en-affil=Department of Pathophysiology - Periodontal Science, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=11
en-affil=Department of Pathophysiology - Periodontal Science, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=12
en-affil=Department of Pathophysiology - Periodontal Science, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
en-keyword=Phosphorylated Pullulan
kn-keyword=Phosphorylated Pullulan
en-keyword=Local drug delivery system
kn-keyword=Local drug delivery system
en-keyword=Cationic antimicrobial agents
kn-keyword=Cationic antimicrobial agents
en-keyword=Cetylpyridinium chloride
kn-keyword=Cetylpyridinium chloride
en-keyword=Oral biofilm
kn-keyword=Oral biofilm
END
start-ver=1.4
cd-journal=joma
no-vol=40
cd-vols=
no-issue=4
article-no=
start-page=463
end-page=474
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20241225
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Nationwide diversity of symbolic “city flowers” in Japan is increasing
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Recognizing and maintaining locally rooted human–nature interactions is essential for utilizing ecosystem services. Although the general public's awareness of biodiversity and ecosystem services has been examined using various proxies, it remains unclear how local governments—key sectors in creating conservation policies—appreciate them within a solid local context. Here, we focused on the “city flower,” an official symbolic species of Japanese cities, as a new proxy for measuring governmental attitudes toward biota and its services. We aimed to capture temporal changes in the awareness of species with locally relevant value at the city government level by examining the changes in city flowers over more than half a century. Data from the official websites of municipalities, including the names, the adoption years, and the reasons for adoption, revealed two major periods of adoption, with a notable increase in species diversity in and after 1993. This increase could be attributed to a recent reduction in bias toward popular flowers and growing interest in alternative, less popular flowers. Analysis of the reasons for adoption suggested that the temporal change in adopted flower species was related to the increasing emphasis on species with an explicit local context, especially those with instrumental value to the city. Our findings indicate the tendency for local governments to increasingly recognize their biocultural backgrounds and the ecosystem services of plants within their regions. The growing awareness of the local governments regarding their biocultural background is a positive sign for the conservation of biodiversity and ecosystem services.
en-copyright=
kn-copyright=
en-aut-name=TsuzukiYoichi
en-aut-sei=Tsuzuki
en-aut-mei=Yoichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=OhsakiHaruna
en-aut-sei=Ohsaki
en-aut-mei=Haruna
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=KawaguchiYawako W.
en-aut-sei=Kawaguchi
en-aut-mei=Yawako W.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=SuzukiSayaka
en-aut-sei=Suzuki
en-aut-mei=Sayaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=HaradaShogo
en-aut-sei=Harada
en-aut-mei=Shogo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=OtakeYurie
en-aut-sei=Otake
en-aut-mei=Yurie
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=ShinoharaNaoto
en-aut-sei=Shinohara
en-aut-mei=Naoto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=KatsuharaKoki R.
en-aut-sei=Katsuhara
en-aut-mei=Koki R.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
affil-num=1
en-affil=Health and Environmental Risk Division, National Institute for Environmental Studies
kn-affil=
affil-num=2
en-affil=Department of Biological Sciences, Tokyo Metropolitan University
kn-affil=
affil-num=3
en-affil=Department of Biological Sciences, Graduate School of Science, The University of Tokyo
kn-affil=
affil-num=4
en-affil=Center for Ecological Research, Kyoto University
kn-affil=
affil-num=5
en-affil=Department of Biology, Graduate School of Science, Osaka City University
kn-affil=
affil-num=6
en-affil=Center for Ecological Research, Kyoto University
kn-affil=
affil-num=7
en-affil=Center for Ecological Research, Kyoto University
kn-affil=
affil-num=8
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=awareness of local governments
kn-keyword=awareness of local governments
en-keyword=biocultural diversity
kn-keyword=biocultural diversity
en-keyword=ecosystem services
kn-keyword=ecosystem services
en-keyword=manual web scraping
kn-keyword=manual web scraping
en-keyword=temporal trend
kn-keyword=temporal trend
END
start-ver=1.4
cd-journal=joma
no-vol=96
cd-vols=
no-issue=1
article-no=
start-page=e70055
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202501
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Presence of a Deletion Mutation of Myostatin (MSTN) Gene Associated With Double-Muscling Phenotype in Japanese Black Cattle Population
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Mutations in the bovine myostatin (MSTN) gene have been identified as the causative factor for the double-muscling phenotype in several European cattle breeds, including Belgian Blue, Piedmontese, and Shorthorn. In Japan, following the Meiji Restoration, several European breeds, including Shorthorn, Brown Swiss, Devon, Simmental, and Ayrshire, were introduced and crossbred with native cattle to develop modern Japanese beef cattle breeds, such as Japanese Black cattle. Historical records regarding the breeding of Japanese Black cattle indicate that the double-muscling phenotype, referred to as “Butajiri,” occasionally appeared in Japanese Black cattle population. These historical observations suggest the potential presence of MSTN gene mutation in the Japanese Black cattle population. The aim of this study was, therefore, to investigate the presence of MSTN gene mutation in the current Japanese Black cattle population. Through screening 400 reproductive females, we identified one cow carrying an 11-bp deletion in the MSTN gene. While further investigation of the animals in the pedigree of this cow could not reveal any living animals with this mutation, this is the first report demonstrating the presence of the MSTN mutation in the Japanese Black cattle population.
en-copyright=
kn-copyright=
en-aut-name=LeNu Anh Thu
en-aut-sei=Le
en-aut-mei=Nu Anh Thu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=KuboRena
en-aut-sei=Kubo
en-aut-mei=Rena
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=BorjiginLiushiqi
en-aut-sei=Borjigin
en-aut-mei=Liushiqi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=IbiTakayuki
en-aut-sei=Ibi
en-aut-mei=Takayuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=SasakiShinji
en-aut-sei=Sasaki
en-aut-mei=Shinji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=KuniedaTetsuo
en-aut-sei=Kunieda
en-aut-mei=Tetsuo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
affil-num=1
en-affil=Faculty of Veterinary Medicine Okayama University of Science Imabari
kn-affil=
affil-num=2
en-affil=Faculty of Veterinary Medicine Okayama University of Science Imabari
kn-affil=
affil-num=3
en-affil=Faculty of Veterinary Medicine Okayama University of Science Imabari
kn-affil=
affil-num=4
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=5
en-affil=Faculty of Agriculture Ryukyu University Nishihara
kn-affil=
affil-num=6
en-affil=Faculty of Veterinary Medicine Okayama University of Science Imabari
kn-affil=
en-keyword=double muscle
kn-keyword=double muscle
en-keyword=Japanese Black cattle
kn-keyword=Japanese Black cattle
en-keyword=myostatin gene
kn-keyword=myostatin gene
END
start-ver=1.4
cd-journal=joma
no-vol=13
cd-vols=
no-issue=35
article-no=
start-page=28887
end-page=28895
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=2025
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Thermally polymerizable phthalocyanine realizes a metal–nitrogen-doped carbon material featuring a defined single-atom catalyst motif with CO2RR activity
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Metal–nitrogen-doped carbon materials (MNCs) exhibit good electrocatalytic performance owing to the intrinsic advantages of carbon-based materials and the presence of isolated and stabilized metal atoms coordinated by nitrogen sites. However, conventional high-temperature pyrolysis of precursor molecules make it difficult to control the coordination structure precisely. To address this issue, here we report a new synthesis strategy for MNCs. Specifically, we design and synthesize Ni-phthalocyanine functionalized with ethynyl groups as solid-state thermal polymerization points. After depositing the Ni-phthalocyanine precursor on a carbon support and performing a thermal treatment, the resultant carbon composite material features a Ni–N4 coordination structure derived from the precursor, and enhanced porosity. This material demonstrates high catalytic activity for the CO2 reduction reaction (CO2RR). Our synthetic approach is applicable to various precursor molecules and carbon supports, paving the way for the further development of MNC-based electrode catalysts.
en-copyright=
kn-copyright=
en-aut-name=SanoYuki
en-aut-sei=Sano
en-aut-mei=Yuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=NakajimaDaichi
en-aut-sei=Nakajima
en-aut-mei=Daichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=MannaBiplab
en-aut-sei=Manna
en-aut-mei=Biplab
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=ChidaKoki
en-aut-sei=Chida
en-aut-mei=Koki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=ToyodaRyojun
en-aut-sei=Toyoda
en-aut-mei=Ryojun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=TakaishiShinya
en-aut-sei=Takaishi
en-aut-mei=Shinya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=IwaseKazuyuki
en-aut-sei=Iwase
en-aut-mei=Kazuyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=HaranoKoji
en-aut-sei=Harano
en-aut-mei=Koji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=NishinaYuta
en-aut-sei=Nishina
en-aut-mei=Yuta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=YoshiiTakeharu
en-aut-sei=Yoshii
en-aut-mei=Takeharu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
en-aut-name=SakamotoRyota
en-aut-sei=Sakamoto
en-aut-mei=Ryota
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=11
ORCID=
affil-num=1
en-affil=Department of Chemistry, Graduate School of Science, Tohoku University
kn-affil=
affil-num=2
en-affil=Department of Chemistry, Graduate School of Science, Tohoku University
kn-affil=
affil-num=3
en-affil=Center for Basic Research on Materials, National Institute for Materials Science
kn-affil=
affil-num=4
en-affil=Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
kn-affil=
affil-num=5
en-affil=Department of Chemistry, Graduate School of Science, Tohoku University
kn-affil=
affil-num=6
en-affil=Department of Chemistry, Graduate School of Science, Tohoku University
kn-affil=
affil-num=7
en-affil=Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
kn-affil=
affil-num=8
en-affil=Center for Basic Research on Materials, National Institute for Materials Science
kn-affil=
affil-num=9
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=10
en-affil=Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
kn-affil=
affil-num=11
en-affil=Department of Chemistry, Graduate School of Science, Tohoku University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=243
cd-vols=
no-issue=
article-no=
start-page=120539
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202508
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Organic solvent transport through reduced graphene oxide membranes with controlled oxygen content
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Recent advances in membranes based on 2-dimensional (2D) materials have enabled precise control over angstrom-scale pores, providing a unique platform for studying diverse mass transport mechanisms. In this work, we systematically investigate the transport of solvent vapors through 2D channels made of graphene oxide (GO) laminates with precisely controlled oxygen content. Using in-situ chemical reduction of GO with vitamin C, we fabricated reduced GO membranes (VRGMs) with oxygen content systematically decreased from 31.6 % (pristine GO) to 24.0 % (VRGM-maximum reduction). Vapor permeability measurements showed a distinct correlation between oxygen functional groups and solvent transport behaviour. Specifically, non-polar hexane exhibits 114 % of enhanced permeance through the reduced membranes with larger graphitic domains, while the permeance of water decreases by 55 %. With the support of density functional theory (DFT) simulations, we modelled the hydrogen-bond and dispersion complexes between the solvents and GO and calculated the complexation energies. The simulation results suggest that polar molecules interact with the oxygen functional groups of GO via a hydrogen-bond network, supporting in-plane transport. In contrast, van der Waals forces drive the transport of low-polarity solvents along the graphitic domains of the 2D channel in reduced GO membranes. Our findings provide potential strategies for future design of organic solvent nanofiltration membranes.
en-copyright=
kn-copyright=
en-aut-name=ChenHongzhe
en-aut-sei=Chen
en-aut-mei=Hongzhe
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=LinTongxi
en-aut-sei=Lin
en-aut-mei=Tongxi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=RamadhanZeno Rizqi
en-aut-sei=Ramadhan
en-aut-mei=Zeno Rizqi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=RawalAditya
en-aut-sei=Rawal
en-aut-mei=Aditya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=NishinaYuta
en-aut-sei=Nishina
en-aut-mei=Yuta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=KartonAmir
en-aut-sei=Karton
en-aut-mei=Amir
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=RenXiaojun
en-aut-sei=Ren
en-aut-mei=Xiaojun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=JoshiRakesh
en-aut-sei=Joshi
en-aut-mei=Rakesh
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
affil-num=1
en-affil=School of Materials Science and Engineering, University of New South Wales Sydney
kn-affil=
affil-num=2
en-affil=School of Materials Science and Engineering, University of New South Wales Sydney
kn-affil=
affil-num=3
en-affil=Electron Microscope Unit, University of New South Wales
kn-affil=
affil-num=4
en-affil=Mark Wainwright Analytical Centre, University of New South Wales
kn-affil=
affil-num=5
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
affil-num=6
en-affil=School of Science and Technology, University of New England
kn-affil=
affil-num=7
en-affil=School of Materials Science and Engineering, University of New South Wales Sydney
kn-affil=
affil-num=8
en-affil=School of Materials Science and Engineering, University of New South Wales Sydney
kn-affil=
en-keyword=Graphene oxide
kn-keyword=Graphene oxide
en-keyword=Organic solvent nanofiltration
kn-keyword=Organic solvent nanofiltration
END
start-ver=1.4
cd-journal=joma
no-vol=12
cd-vols=
no-issue=4
article-no=
start-page=045010
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250911
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Covalent cross-linked graphene oxide aerogels for moisture adsorption
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Covalent cross-linking is an effective approach to enhance the hydrophilicity and water adsorption properties of graphene oxide (GO). We studied moisture absorption in GO cross-linked with poly(ethylene glycol) diamines. At relative humidity (RH) of 85%, the PEG-cross-linked GO exhibited a significantly enhanced water uptake capacity of 0.59 g of water per gram of GO (gg−1), compared to 0.37 for unmodified GO. This is attributed to the presence of alkoxy groups via cross-linking, resulting in the enhanced interaction between GO and water molecules. These findings highlight the potential of PEG-based covalent functionalisation for efficient moisture capture in GO-based materials.
en-copyright=
kn-copyright=
en-aut-name=CaoZhijian
en-aut-sei=Cao
en-aut-mei=Zhijian
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=RenXiaojun
en-aut-sei=Ren
en-aut-mei=Xiaojun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=LinTongxi
en-aut-sei=Lin
en-aut-mei=Tongxi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=NishinaYuta
en-aut-sei=Nishina
en-aut-mei=Yuta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=YoshimuraMasamichi
en-aut-sei=Yoshimura
en-aut-mei=Masamichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=JoshiRakesh
en-aut-sei=Joshi
en-aut-mei=Rakesh
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
affil-num=1
en-affil=School of Materials Science and Engineering, University of New South Wales
kn-affil=
affil-num=2
en-affil=School of Materials Science and Engineering, University of New South Wales
kn-affil=
affil-num=3
en-affil=School of Materials Science and Engineering, University of New South Wales
kn-affil=
affil-num=4
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
affil-num=5
en-affil=Graduate School of Engineering, Toyota Technological Institute
kn-affil=
affil-num=6
en-affil=School of Materials Science and Engineering, University of New South Wales
kn-affil=
en-keyword=graphene oxide (GO)
kn-keyword=graphene oxide (GO)
en-keyword=covalent cross-linking
kn-keyword=covalent cross-linking
en-keyword=poly(ethylene glycol) (PEG)
kn-keyword=poly(ethylene glycol) (PEG)
en-keyword=moisture adsorption
kn-keyword=moisture adsorption
en-keyword=hydrophilicity enhancement
kn-keyword=hydrophilicity enhancement
END
start-ver=1.4
cd-journal=joma
no-vol=23
cd-vols=
no-issue=5
article-no=
start-page=209
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250514
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Novel Anti-MRSA Peptide from Mangrove-Derived Virgibacillus chiguensis FN33 Supported by Genomics and Molecular Dynamics
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Antimicrobial resistance (AMR) is a global health threat, with methicillin-resistant Staphylococcus aureus (MRSA) being one of the major resistant pathogens. This study reports the isolation of a novel mangrove-derived bacterium, Virgibacillus chiguensis FN33, as identified through genome analysis and the discovery of a new anionic antimicrobial peptide (AMP) exhibiting anti-MRSA activity. The AMP was composed of 23 amino acids, which were elucidated as NH3-Glu-Gly-Gly-Cys-Gly-Val-Asp-Thr-Trp-Gly-Cys-Leu-Thr-Pro-Cys-His-Cys-Asp-Leu-Phe-Cys-Thr-Thr-COOH. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) for MRSA were 8 µg/mL and 16 µg/mL, respectively. FN33 AMP induced cell membrane permeabilization, suggesting a membrane-disrupting mechanism. The AMP remained stable at 30–40 °C but lost activity at higher temperatures and following exposure to proteases, surfactants, and extreme pH. All-atom molecular dynamics simulations showed that the AMP adopts a β-sheet structure upon membrane interaction. These findings suggest that Virgibacillus chiguensis FN33 is a promising source of novel antibacterial agents against MRSA, supporting alternative strategies for drug-resistant infections.
en-copyright=
kn-copyright=
en-aut-name=SermkaewNamfa
en-aut-sei=Sermkaew
en-aut-mei=Namfa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=AtipairinApichart
en-aut-sei=Atipairin
en-aut-mei=Apichart
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=BoonruamkaewPhetcharat
en-aut-sei=Boonruamkaew
en-aut-mei=Phetcharat
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=KrobthongSucheewin
en-aut-sei=Krobthong
en-aut-mei=Sucheewin
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=AonbangkhenChanat
en-aut-sei=Aonbangkhen
en-aut-mei=Chanat
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=UchiyamaJumpei
en-aut-sei=Uchiyama
en-aut-mei=Jumpei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=YingchutrakulYodying
en-aut-sei=Yingchutrakul
en-aut-mei=Yodying
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=SongnakaNuttapon
en-aut-sei=Songnaka
en-aut-mei=Nuttapon
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
affil-num=1
en-affil=School of Pharmacy, Walailak University
kn-affil=
affil-num=2
en-affil=School of Pharmacy, Walailak University
kn-affil=
affil-num=3
en-affil=School of Pharmacy, Walailak University
kn-affil=
affil-num=4
en-affil=Center of Excellence in Natural Products Chemistry (CENP), Department of Chemistry, Faculty of Science, Chulalongkorn University
kn-affil=
affil-num=5
en-affil=Center of Excellence in Natural Products Chemistry (CENP), Department of Chemistry, Faculty of Science, Chulalongkorn University
kn-affil=
affil-num=6
en-affil=Department of Bacteriology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=7
en-affil=National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency
kn-affil=
affil-num=8
en-affil=School of Pharmacy, Walailak University
kn-affil=
en-keyword=anionic AMP
kn-keyword=anionic AMP
en-keyword=AMP
kn-keyword=AMP
en-keyword=antimicrobial peptide
kn-keyword=antimicrobial peptide
en-keyword=antimicrobial resistance
kn-keyword=antimicrobial resistance
en-keyword=FN33
kn-keyword=FN33
en-keyword=genome
kn-keyword=genome
en-keyword=molecular dynamics simulations
kn-keyword=molecular dynamics simulations
en-keyword=MRSA
kn-keyword=MRSA
en-keyword=Virgibacillus chiguensis
kn-keyword=Virgibacillus chiguensis
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250811
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=RNA Delivery Using a Graphene Oxide-Polyethylenimine Hybrid Inhibiting Myotube Differentiation
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Graphene oxide (GO) conjugated with short polyethylenimine (PEI) chains (GO-PEI) has been designed as a candidate nanocarrier for small interfering RNA (siRNA) delivery to mammalian cells based on the efficient interaction between the positively charged GO-based platform and the negatively charged siRNA. The function and efficiency of siRNA delivery using GO-PEI were compared to those using the positive control Lipofectamine RNAiMax by analyzing the differentiation to myotubes, and myogenin gene and protein expression in C2C12 cells. RNAiMax transfection induced cellularization and reduction of both myogenin gene and protein expression, suggesting that the differentiation of C2C12 cells was triggered by gene silencing. While GO-PEI also promoted cellularization, the myogenin gene expression remained comparable to scrambled controls, whereas the protein levels were higher than those observed with RNAiMax. Mechanistically, we attributed the reduced gene silencing efficiency of GO-PEI to a poor endosomal escape, despite strong siRNA complexation. This limitation was likely due to a low buffering capacity of GO-PEI, as a significant fraction of nitrogen atoms were already protonated, reducing the availability of free amines necessary for endosomal disruption. An appropriate chemical modification to enhance siRNA release from the endosomes is therefore essential for advancing the development of GO-based platforms as versatile and efficient nanocarriers in gene therapy applications.
en-copyright=
kn-copyright=
en-aut-name=MatsuuraKoji
en-aut-sei=Matsuura
en-aut-mei=Koji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=ReinaGiacomo
en-aut-sei=Reina
en-aut-mei=Giacomo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=GaoZhengfeng
en-aut-sei=Gao
en-aut-mei=Zhengfeng
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=NishinaYuta
en-aut-sei=Nishina
en-aut-mei=Yuta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=BiancoAlberto
en-aut-sei=Bianco
en-aut-mei=Alberto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
affil-num=1
en-affil=CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR3572, University of Strasbourg, ISIS
kn-affil=
affil-num=2
en-affil=CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR3572, University of Strasbourg, ISIS
kn-affil=
affil-num=3
en-affil=CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR3572, University of Strasbourg, ISIS
kn-affil=
affil-num=4
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
affil-num=5
en-affil=CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR3572, University of Strasbourg, ISIS
kn-affil=
en-keyword=graphene oxide
kn-keyword=graphene oxide
en-keyword=polyethylenimine
kn-keyword=polyethylenimine
en-keyword=myotubes
kn-keyword=myotubes
en-keyword=myogenin
kn-keyword=myogenin
en-keyword=small interfering RNA
kn-keyword=small interfering RNA
en-keyword=transfection
kn-keyword=transfection
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=2500368
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250629
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Integration of Cholesterol Oxidase‐Based Biosensors on a Smart Contact Lens for Wireless Cholesterol Monitoring from Tears
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Cholesterol plays a critical role in physiological functions, but elevated levels increase the risk of cardiovascular disease. Regular cholesterol monitoring is essential for elderly or obese individuals. Current methods, such as blood tests, are invasive, inconvenient, and require a professional operator. In contrast, tears, as an accessible body fluid, offer a promising alternative for noninvasive monitoring due to their correlation with blood cholesterol levels. Herein, a noninvasive approach for monitoring cholesterol levels in tears using a biosensor integrated into a smart contact lens is reported. The biosensor employs cholesterol oxidases as the biocatalyst, coupled with an osmium-based mediator, to detect cholesterol concentrations ranging from 0.1 mM to 1.2 mM in artificial tears. A key challenge is the extremely low cholesterol concentration in tears, which is addressed using a parity-time (P-T) symmetry-based magnetic resonance coupling system. This system enables wireless signal reading and achieves high sensitivity due to its high-quality (Q) factor, which can achieve a detection limit of 0.061 mM. This portable, high-sensitivity smart contact lens demonstrates significant potential as a wearable device for continuous, noninvasive cholesterol monitoring. The findings contribute to advancing tear-based diagnostic systems and highlight the scientific importance of utilizing tear biomarkers for health monitoring.
en-copyright=
kn-copyright=
en-aut-name=CuiYang
en-aut-sei=Cui
en-aut-mei=Yang
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=ZhuoLin
en-aut-sei=Zhuo
en-aut-mei=Lin
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=NishinaYuta
en-aut-sei=Nishina
en-aut-mei=Yuta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=AzhariSaman
en-aut-sei=Azhari
en-aut-mei=Saman
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=MiyakeTakeo
en-aut-sei=Miyake
en-aut-mei=Takeo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
affil-num=1
en-affil=Graduate school of Information, Production and Systems, Waseda University
kn-affil=
affil-num=2
en-affil=Graduate school of Information, Production and Systems, Waseda University
kn-affil=
affil-num=3
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Graduate school of Information, Production and Systems, Waseda University
kn-affil=
affil-num=5
en-affil=Graduate school of Information, Production and Systems, Waseda University
kn-affil=
en-keyword=cholesterol
kn-keyword=cholesterol
en-keyword=magnetic resonance coupling
kn-keyword=magnetic resonance coupling
en-keyword=parity-time symmetry
kn-keyword=parity-time symmetry
en-keyword=smart contact lens
kn-keyword=smart contact lens
END
start-ver=1.4
cd-journal=joma
no-vol=13
cd-vols=
no-issue=9
article-no=
start-page=846
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20240905
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Unveiling a New Antimicrobial Peptide with Efficacy against P. aeruginosa and K. pneumoniae from Mangrove-Derived Paenibacillus thiaminolyticus NNS5-6 and Genomic Analysis
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This study focused on the discovery of the antimicrobial peptide (AMP) derived from mangrove bacteria. The most promising isolate, NNS5-6, showed the closest taxonomic relation to Paenibacillus thiaminolyticus, with the highest similarity of 74.9%. The AMP produced by Paenibacillus thiaminolyticus NNS5-6 exhibited antibacterial activity against various Gram-negative pathogens, especially Pseudomonas aeruginosa and Klebsiella pneumoniae. The peptide sequence consisted of 13 amino acids and was elucidated as Val-Lys-Gly-Asp-Gly-Gly-Pro-Gly-Thr-Val-Tyr-Thr-Met. The AMP mainly exhibited random coil and antiparallel beta-sheet structures. The stability study indicated that this AMP was tolerant of various conditions, including proteolytic enzymes, pH (1.2–14), surfactants, and temperatures up to 40 °C for 12 h. The AMP demonstrated 4 µg/mL of MIC and 4–8 µg/mL of MBC against both pathogens. Time-kill kinetics showed that the AMP acted in a time- and concentration-dependent manner. A cell permeability assay and scanning electron microscopy revealed that the AMP exerted the mode of action by disrupting bacterial membranes. Additionally, nineteen biosynthetic gene clusters of secondary metabolites were identified in the genome. NNS5-6 was susceptible to various commonly used antibiotics supporting the primary safety requirement. The findings of this research could pave the way for new therapeutic approaches in combating antibiotic-resistant pathogens.
en-copyright=
kn-copyright=
en-aut-name=SermkaewNamfa
en-aut-sei=Sermkaew
en-aut-mei=Namfa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=AtipairinApichart
en-aut-sei=Atipairin
en-aut-mei=Apichart
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=KrobthongSucheewin
en-aut-sei=Krobthong
en-aut-mei=Sucheewin
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=AonbangkhenChanat
en-aut-sei=Aonbangkhen
en-aut-mei=Chanat
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=YingchutrakulYodying
en-aut-sei=Yingchutrakul
en-aut-mei=Yodying
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=UchiyamaJumpei
en-aut-sei=Uchiyama
en-aut-mei=Jumpei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=SongnakaNuttapon
en-aut-sei=Songnaka
en-aut-mei=Nuttapon
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
affil-num=1
en-affil=School of Pharmacy, Walailak University
kn-affil=
affil-num=2
en-affil=School of Pharmacy, Walailak University
kn-affil=
affil-num=3
en-affil=Center of Excellence in Natural Products Chemistry (CENP), Department of Chemistry, Faculty of Science, Chulalongkorn University
kn-affil=
affil-num=4
en-affil=Center of Excellence in Natural Products Chemistry (CENP), Department of Chemistry, Faculty of Science, Chulalongkorn University
kn-affil=
affil-num=5
en-affil=National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency
kn-affil=
affil-num=6
en-affil=Department of Bacteriology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=7
en-affil=School of Pharmacy, Walailak University
kn-affil=
en-keyword=antimicrobial peptide
kn-keyword=antimicrobial peptide
en-keyword=antimicrobial resistance
kn-keyword=antimicrobial resistance
en-keyword=bacterial genome
kn-keyword=bacterial genome
en-keyword=biosynthetic gene cluster
kn-keyword=biosynthetic gene cluster
en-keyword=Klebsiella pneumoniae
kn-keyword=Klebsiella pneumoniae
en-keyword=Mangrove
kn-keyword=Mangrove
en-keyword=mass spectrometry
kn-keyword=mass spectrometry
en-keyword=NNS5-6
kn-keyword=NNS5-6
en-keyword=Paenibacillus thiaminolyticus
kn-keyword=Paenibacillus thiaminolyticus
en-keyword=Pseudomonas aeruginosa
kn-keyword=Pseudomonas aeruginosa
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250921
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Urbanised landscape and microhabitat differences can influence flowering phenology and synchrony in an annual herb
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=1. Flowering phenology, a crucial determinant of plant reproductive success and biotic interactions, is susceptible to urbanisation. Numerous studies have shown the impact of urbanised landscapes on flowering phenology based on comparisons along urban–rural gradients. Phenological patterns among microenvironments in the urban ecosystem have received less attention, although they often offer unique habitats with varying artificial influences, such as roadsides, drainage ditches and vacant lots. If differences in microenvironments diversify flowering phenology, the urban matrix might reduce flowering synchrony with neighbouring populations, limiting outcrossing opportunities and therefore reducing reproductive success.
2. We investigated the flowering phenology and synchrony of the native annual herb Commelina communis in approximately 250 populations at two rural and two urban sites over 3 years. To determine the effect of microhabitat differences, we categorised the microhabitats of C. communis populations into five types: drains, roadsides, vacant land, farmland and forest edge. In some study populations, we investigated reproductive success (seed set) to estimate the degree of outcross pollination limitation.
3. Our findings revealed that populations in urban sites exhibited earlier flowering onset and longer flowering duration compared to rural locations. Besides, we did not detect consistent patterns of flowering onset, peak and duration among the different microhabitat types. For flowering synchrony, we found that the population in urban sites, growing in drain habitats, and with artificial disturbances exhibited relatively lower interpopulation flowering synchrony, suggesting their phenology differed from neighbouring populations within the same landscape. Additionally, populations in urban sites, especially those growing in drain and roadside habitats, suffered severe outcross pollen limitation compared to those in rural landscapes.
4. Synthesis and applications. In conclusion, our results indicate that in addition to landscape changes associated with urbanisation, variations in local microhabitats also influence the flowering phenology and synchrony of C. communis populations. Urbanised landscapes and differences in microhabitats could contribute to the diversification of phenological patterns between populations, potentially having a negative impact on the reproductive success of native plant species. These findings highlight the need to consider not only spatial but also temporal fragmentation from diversified flowering phenology when addressing conservation in the urban matrix.
en-copyright=
kn-copyright=
en-aut-name=FujiwaraHinata
en-aut-sei=Fujiwara
en-aut-mei=Hinata
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=YamaguchiHiroto
en-aut-sei=Yamaguchi
en-aut-mei=Hiroto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=NakataKazuyoshi
en-aut-sei=Nakata
en-aut-mei=Kazuyoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=KatsuharaKoki R.
en-aut-sei=Katsuhara
en-aut-mei=Koki R.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
affil-num=1
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=artificial disturbance
kn-keyword=artificial disturbance
en-keyword=Commelina
kn-keyword=Commelina
en-keyword=drainage ditches
kn-keyword=drainage ditches
en-keyword=flowering synchrony
kn-keyword=flowering synchrony
en-keyword=roadside
kn-keyword=roadside
en-keyword=ruderal plants
kn-keyword=ruderal plants
en-keyword=temporal fragmentation
kn-keyword=temporal fragmentation
en-keyword=urban ecology
kn-keyword=urban ecology
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=1
end-page=3
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250919
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Dual-action intranasal oxytocin enhances both male sexual performance and fertility in rats
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=EnomotoChica
en-aut-sei=Enomoto
en-aut-mei=Chica
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=OtiTakumi
en-aut-sei=Oti
en-aut-mei=Takumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=YamanakaTakahiro
en-aut-sei=Yamanaka
en-aut-mei=Takahiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=ShimadaMasayuki
en-aut-sei=Shimada
en-aut-mei=Masayuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=SakamotoHirotaka
en-aut-sei=Sakamoto
en-aut-mei=Hirotaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
affil-num=1
en-affil=Department of Biology, Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Department of Biology, Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Laboratory of Reproductive Endocrinology, Graduate School of Integrated Sciences for Life, Hiroshima University
kn-affil=
affil-num=4
en-affil=Laboratory of Reproductive Endocrinology, Graduate School of Integrated Sciences for Life, Hiroshima University
kn-affil=
affil-num=5
en-affil=Department of Biology, Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=oxytocin
kn-keyword=oxytocin
en-keyword=intranasal administration
kn-keyword=intranasal administration
en-keyword=sexual behavior
kn-keyword=sexual behavior
en-keyword=sperm motility
kn-keyword=sperm motility
en-keyword=paraventricular nucleus
kn-keyword=paraventricular nucleus
en-keyword=male sexual function
kn-keyword=male sexual function
en-keyword=androgen signaling
kn-keyword=androgen signaling
END
start-ver=1.4
cd-journal=joma
no-vol=133
cd-vols=
no-issue=1
article-no=
start-page=15
end-page=24
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250101
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Comparative study of the effects of fluoride treatment with cyclic variations in pH on the structures of stoichiometric, calcium-deficient, and carbonated hydroxyapatites
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The primary objective of this study was to analyze the effects of fluoride treatment with cyclic variations in pH on the structure of stoichiometric hydroxyapatite (HAp), calcium-deficient HAp (CDHAp), and carbonated HAp (CHAp) powders. The structures of HAp, CDHAp, and CHAp before and after fluoride treatment were investigated using X-ray diffraction, Fourier-transform infrared, Raman, and nuclear magnetic resonance spectroscopic analyses. The fluoride treatment with cyclic variations in pH increased the calcium deficiency in HAp and CHAp but decreased in CDHAp. During fluoride treatment, fluoridated CDHAp or fluoridated calcium-deficient CHAp was formed on the surface of the HAp samples via dissolution and crystal growth, accompanied by the selective elution of component ions and partial substitution of OH− groups in the HAp hexagonal lattice with F− ions. No evidence of the formation of Ca(OH)2 and OH− groups outside the HAp crystal lattice was obtained. A new perspective on the formation of structured water at the surface termination of the OH columns (disordered region), with possible interactions with adsorbed water molecules or nonspecifically adsorbed F− ions was provided. The top surface of the fluoridated CDHAp consisted of an amorphous fluoride-rich hydrated layer, which included calcium phosphate and CaF2.
en-copyright=
kn-copyright=
en-aut-name=HayakawaSatoshi
en-aut-sei=Hayakawa
en-aut-mei=Satoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=OkadaYu
en-aut-sei=Okada
en-aut-mei=Yu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=YoshiokaTomohiko
en-aut-sei=Yoshioka
en-aut-mei=Tomohiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
affil-num=1
en-affil=Faculty of Interdisciplinary Science and Engineering in Health Systems, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Faculty of Interdisciplinary Science and Engineering in Health Systems, Okayama University
kn-affil=
en-keyword=Hydroxyapatite
kn-keyword=Hydroxyapatite
en-keyword=Fluoride treatment
kn-keyword=Fluoride treatment
en-keyword=Microstructure
kn-keyword=Microstructure
en-keyword=Calcium fluoride
kn-keyword=Calcium fluoride
en-keyword=Structured water
kn-keyword=Structured water
END
start-ver=1.4
cd-journal=joma
no-vol=4
cd-vols=
no-issue=9
article-no=
start-page=1135
end-page=1151
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250910
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Heart failure-specific cardiac fibroblasts contribute to cardiac dysfunction via the MYC–CXCL1–CXCR2 axis
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Heart failure (HF) is a growing global health issue. While most studies focus on cardiomyocytes, here we highlight the role of cardiac fibroblasts (CFs) in HF. Single-cell RNA sequencing of mouse hearts under pressure overload identified six CF subclusters, with one specific to the HF stage. This HF-specific CF population highly expresses the transcription factor Myc. Deleting Myc in CFs improves cardiac function without reducing fibrosis. MYC directly regulates the expression of the chemokine CXCL1, which is elevated in HF-specific CFs and downregulated in Myc-deficient CFs. The CXCL1 receptor, CXCR2, is expressed in cardiomyocytes, and blocking the CXCL1–CXCR2 axis mitigates HF. CXCL1 impairs contractility in neonatal rat and human iPSC-derived cardiomyocytes. Human CFs from failing hearts also express MYC and CXCL1, unlike those from controls. These findings reveal that HF-specific CFs contribute to HF via the MYC–CXCL1–CXCR2 pathway, offering a promising therapeutic target beyond cardiomyocytes.
en-copyright=
kn-copyright=
en-aut-name=KomuroJin
en-aut-sei=Komuro
en-aut-mei=Jin
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=HashimotoHisayuki
en-aut-sei=Hashimoto
en-aut-mei=Hisayuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=KatsukiToshiomi
en-aut-sei=Katsuki
en-aut-mei=Toshiomi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=KusumotoDai
en-aut-sei=Kusumoto
en-aut-mei=Dai
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=KatohManami
en-aut-sei=Katoh
en-aut-mei=Manami
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=KoToshiyuki
en-aut-sei=Ko
en-aut-mei=Toshiyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=ItoMasamichi
en-aut-sei=Ito
en-aut-mei=Masamichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=KatagiriMikako
en-aut-sei=Katagiri
en-aut-mei=Mikako
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=KubotaMasayuki
en-aut-sei=Kubota
en-aut-mei=Masayuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=YamadaShintaro
en-aut-sei=Yamada
en-aut-mei=Shintaro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
en-aut-name=NakamuraTakahiro
en-aut-sei=Nakamura
en-aut-mei=Takahiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=11
ORCID=
en-aut-name=AkibaYohei
en-aut-sei=Akiba
en-aut-mei=Yohei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=12
ORCID=
en-aut-name=KoukaThukaa
en-aut-sei=Kouka
en-aut-mei=Thukaa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=13
ORCID=
en-aut-name=KomuroKaoruko
en-aut-sei=Komuro
en-aut-mei=Kaoruko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=14
ORCID=
en-aut-name=KimuraMai
en-aut-sei=Kimura
en-aut-mei=Mai
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=15
ORCID=
en-aut-name=ItoShogo
en-aut-sei=Ito
en-aut-mei=Shogo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=16
ORCID=
en-aut-name=NomuraSeitaro
en-aut-sei=Nomura
en-aut-mei=Seitaro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=17
ORCID=
en-aut-name=KomuroIssei
en-aut-sei=Komuro
en-aut-mei=Issei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=18
ORCID=
en-aut-name=FukudaKeiichi
en-aut-sei=Fukuda
en-aut-mei=Keiichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=19
ORCID=
en-aut-name=YuasaShinsuke
en-aut-sei=Yuasa
en-aut-mei=Shinsuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=20
ORCID=
en-aut-name=IedaMasaki
en-aut-sei=Ieda
en-aut-mei=Masaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=21
ORCID=
affil-num=1
en-affil=Department of Cardiology, Keio University School of Medicine
kn-affil=
affil-num=2
en-affil=Department of Cardiology, Keio University School of Medicine
kn-affil=
affil-num=3
en-affil=Department of Cardiology, Keio University School of Medicine
kn-affil=
affil-num=4
en-affil=Department of Cardiology, Keio University School of Medicine
kn-affil=
affil-num=5
en-affil=Department of Frontier Cardiovascular Science, Graduate School of Medicine
kn-affil=
affil-num=6
en-affil=Department of Frontier Cardiovascular Science, Graduate School of Medicine
kn-affil=
affil-num=7
en-affil=Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo
kn-affil=
affil-num=8
en-affil=Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo
kn-affil=
affil-num=9
en-affil=Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo
kn-affil=
affil-num=10
en-affil=Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo
kn-affil=
affil-num=11
en-affil=Department of Cardiology, Keio University School of Medicine
kn-affil=
affil-num=12
en-affil=Department of Cardiology, Keio University School of Medicine
kn-affil=
affil-num=13
en-affil=Department of Cardiology, Keio University School of Medicine
kn-affil=
affil-num=14
en-affil=Department of Cardiology, Keio University School of Medicine
kn-affil=
affil-num=15
en-affil=Department of Cardiology, Keio University School of Medicine
kn-affil=
affil-num=16
en-affil=Department of Cardiology, Keio University School of Medicine
kn-affil=
affil-num=17
en-affil=Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo
kn-affil=
affil-num=18
en-affil=Department of Frontier Cardiovascular Science, Graduate School of Medicine
kn-affil=
affil-num=19
en-affil=Department of Cardiology, Keio University School of Medicine
kn-affil=
affil-num=20
en-affil=Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=21
en-affil=Department of Cardiology, Keio University School of Medicine
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=118
cd-vols=
no-issue=10
article-no=
start-page=146
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250901
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Duganella hordei sp. nov., Duganella caerulea sp. nov., and Duganella rhizosphaerae sp. nov., isolated from barley rhizosphere
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Duganella sp. strains R1T, R57T, and R64T, isolated from barley roots in Japan, are Gram-stain-negative, motile, rod-shaped bacteria. Duganella species abundantly colonized barley roots. Strains R1T, R57T, and R64T were capable of growth at 4 °C, suggesting adaptation to colonize winter barley roots. Strains R57T and R64T formed purple colonies, indicating violacein production, while strain R1T did not. Based on 16S rRNA gene sequence similarities, strains R1T, R57T, and R64T were most closely related to D. violaceipulchra HSC-15S17T (99.10%), D. vulcania FT81WT (99.45%), and D. violaceipulchra HSC-15S17T (99.86%), respectively. Their genome sizes ranged from 7.05 to 7.38 Mbp, and their genomic G+C contents were 64.2–64.7%. The average nucleotide identity and digital DNA–DNA hybridization values between R1T and D. violaceipulchra HSC-15S17T, R57T and D. vulcania FT81WT, R64T and D. violaceipulchra HSC-15S17T were 86.0% and 33.2%, 95.7% and 67.9%, and 92.7% and 52.6%, respectively. Their fatty acids were predominantly composed of C16:0, C17:0 cyclo, and summed feature 3 (C16:1 ω7c and/or C16:1 ω6c). Based on their distinct genetic and phenotypic characteristics, and supported by chemotaxonomic analyses, we propose that strains R1T, R57T, and R64T represent novel species within the Duganella genus, for which the names Duganella hordei (type strain R1T = NBRC 115982 T = DSM 115069 T), Duganella caerulea (type strain R57T = NBRC 115983 T = DSM 115070 T), and Duganella rhizosphaerae (type strain R64T = NBRC 115984 T = DSM 115071 T) are proposed.
en-copyright=
kn-copyright=
en-aut-name=KishiroKatsumoto
en-aut-sei=Kishiro
en-aut-mei=Katsumoto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=SahinNurettin
en-aut-sei=Sahin
en-aut-mei=Nurettin
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=SaishoDaisuke
en-aut-sei=Saisho
en-aut-mei=Daisuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=YamajiNaoki
en-aut-sei=Yamaji
en-aut-mei=Naoki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=YamashitaJun
en-aut-sei=Yamashita
en-aut-mei=Jun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=MondenYuki
en-aut-sei=Monden
en-aut-mei=Yuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=NakagawaTomoyuki
en-aut-sei=Nakagawa
en-aut-mei=Tomoyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=MochidaKeiichi
en-aut-sei=Mochida
en-aut-mei=Keiichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=TaniAkio
en-aut-sei=Tani
en-aut-mei=Akio
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
affil-num=1
en-affil=Institute of Plant Science and Resources, Okayama University
kn-affil=
affil-num=2
en-affil=Egitim Fakultesi, Mugla Sitki Kocman University
kn-affil=
affil-num=3
en-affil=Institute of Plant Science and Resources, Okayama University
kn-affil=
affil-num=4
en-affil=Institute of Plant Science and Resources, Okayama University
kn-affil=
affil-num=5
en-affil=Institute of Plant Science and Resources, Okayama University
kn-affil=
affil-num=6
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=7
en-affil=Faculty of Applied Biological Sciences, Gifu University
kn-affil=
affil-num=8
en-affil=RIKEN Center for Sustainable Resource Science
kn-affil=
affil-num=9
en-affil=Institute of Plant Science and Resources, Okayama University
kn-affil=
en-keyword=Barley
kn-keyword=Barley
en-keyword=Duganella
kn-keyword=Duganella
en-keyword=Novel species
kn-keyword=Novel species
en-keyword=Rhizosphere
kn-keyword=Rhizosphere
END
start-ver=1.4
cd-journal=joma
no-vol=198
cd-vols=
no-issue=1
article-no=
start-page=kiaf137
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250408
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The thylakoid membrane remodeling protein VIPP1 forms bundled oligomers in tobacco chloroplasts
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The thylakoid membrane (TM) serves as the scaffold for oxygen-evolving photosynthesis, hosting the protein complexes responsible for the light reactions and ATP synthesis. Vesicle inducing protein in plastid 1 (VIPP1), a key protein in TM remodeling, has been recognized as essential for TM homeostasis. In vitro studies of cyanobacterial VIPP1 demonstrated its ability to form large homo-oligomers (2 MDa) manifesting as ring-like or filament-like assemblies associated with membranes. Similarly, VIPP1 in Chlamydomonas reinhardtii assembles into rods that encapsulate liposomes or into stacked spiral structures. However, the nature of VIPP1 assemblies in chloroplasts, particularly in Arabidopsis, remains uncharacterized. Here, we expressed Arabidopsis thaliana VIPP1 fused to GFP (AtVIPP1-GFP) in tobacco (Nicotiana tabacum) chloroplasts and performed transmission electron microscopy (TEM). A purified AtVIPP1-GFP fraction was enriched with long filamentous tubule-like structures. Detailed TEM observations of chloroplasts in fixed resin-embedded tissues identified VIPP1 assemblies in situ that appeared to colocalize with GFP fluorescence. Electron tomography demonstrated that the AtVIPP1 oligomers consisted of bundled filaments near membranes, some of which appeared connected to the TM or inner chloroplast envelope at their contact sites. The observed bundles were never detected in wild-type Arabidopsis but were observed in Arabidopsis vipp1 mutants expressing AtVIPP1-GFP. Taken together, we propose that the bundled filaments are the dominant AtVIPP1 oligomers that represent its static state in vivo.
en-copyright=
kn-copyright=
en-aut-name=GachieSarah W
en-aut-sei=Gachie
en-aut-mei=Sarah W
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=MuhireAlexandre
en-aut-sei=Muhire
en-aut-mei=Alexandre
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=LiDi
en-aut-sei=Li
en-aut-mei=Di
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=KawamotoAkihiro
en-aut-sei=Kawamoto
en-aut-mei=Akihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=Takeda-KamiyaNoriko
en-aut-sei=Takeda-Kamiya
en-aut-mei=Noriko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=GotoYumi
en-aut-sei=Goto
en-aut-mei=Yumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=SatoMayuko
en-aut-sei=Sato
en-aut-mei=Mayuko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=ToyookaKiminori
en-aut-sei=Toyooka
en-aut-mei=Kiminori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=YoshimuraRyo
en-aut-sei=Yoshimura
en-aut-mei=Ryo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=TakamiTsuneaki
en-aut-sei=Takami
en-aut-mei=Tsuneaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
en-aut-name=ZhangLingang
en-aut-sei=Zhang
en-aut-mei=Lingang
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=11
ORCID=
en-aut-name=KurisuGenji
en-aut-sei=Kurisu
en-aut-mei=Genji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=12
ORCID=
en-aut-name=TerachiToru
en-aut-sei=Terachi
en-aut-mei=Toru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=13
ORCID=
en-aut-name=SakamotoWataru
en-aut-sei=Sakamoto
en-aut-mei=Wataru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=14
ORCID=
affil-num=1
en-affil=Institute of Plant Science and Resources, Okayama University
kn-affil=
affil-num=2
en-affil=Institute of Plant Science and Resources, Okayama University
kn-affil=
affil-num=3
en-affil=Institute of Plant Science and Resources, Okayama University
kn-affil=
affil-num=4
en-affil=Institute for Protein Research, Osaka University
kn-affil=
affil-num=5
en-affil=Mass Spectrometry and Microscopy Unit, RIKEN Center for Sustainable Resource Science
kn-affil=
affil-num=6
en-affil=Mass Spectrometry and Microscopy Unit, RIKEN Center for Sustainable Resource Science
kn-affil=
affil-num=7
en-affil=Mass Spectrometry and Microscopy Unit, RIKEN Center for Sustainable Resource Science
kn-affil=
affil-num=8
en-affil=Mass Spectrometry and Microscopy Unit, RIKEN Center for Sustainable Resource Science
kn-affil=
affil-num=9
en-affil=Institute of Plant Science and Resources, Okayama University
kn-affil=
affil-num=10
en-affil=Institute of Plant Science and Resources, Okayama University
kn-affil=
affil-num=11
en-affil=School of Life Sciences, Inner Mongolia University/Key Laboratory of Herbage and Endemic Crop Biotechnology
kn-affil=
affil-num=12
en-affil=Institute for Protein Research, Osaka University
kn-affil=
affil-num=13
en-affil=Faculty of Life Sciences, Kyoto Sangyo University
kn-affil=
affil-num=14
en-affil=Institute of Plant Science and Resources, Okayama University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=2025
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Generation of alkyl radicals via C(sp3)–C(sp3) bond cleavage of xanthene-based precursors for photocatalytic Giese-type reaction
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Novel xanthene-based alkyl radical precursors were developed and subjected to photocatalytic C(sp3)–C(sp3) bond cleavage for the efficient generation of alkyl radicals, which were subsequently reacted with various alkenes to afford the corresponding Giese-type products. After the reaction, the produced xanthones can be recovered in high yield.
en-copyright=
kn-copyright=
en-aut-name=HoriuchiShuta
en-aut-sei=Horiuchi
en-aut-mei=Shuta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=OishiMasato
en-aut-sei=Oishi
en-aut-mei=Masato
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=MizutaniAsuka
en-aut-sei=Mizutani
en-aut-mei=Asuka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=TakamuraHiroyoshi
en-aut-sei=Takamura
en-aut-mei=Hiroyoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=KadotaIsao
en-aut-sei=Kadota
en-aut-mei=Isao
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=TanakaKenta
en-aut-sei=Tanaka
en-aut-mei=Kenta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
affil-num=1
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=5
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=6
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=10
article-no=
start-page=4724
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250515
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Stem Cell Factors BAM1 and WOX1 Suppressing Longitudinal Cell Division of Margin Cells Evoked by Low-Concentration Auxin in Young Cotyledon of Arabidopsis
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Highly differentiated tissues and organs play essential biological functions in multicellular organisms. Coordination of organ developmental process with tissue differentiation is necessary to achieve proper development of mature organs, but mechanisms for such coordination are not well understood. We used cotyledon margin cells from Arabidopsis plant as a new model system to investigate cell elongation and cell division during organ growth and found that margin cells endured a developmental phase transition from the “elongation” phase to the “elongation and division” phase at the early stage in germinating seedlings. We also discovered that the stem cell factors BARELY ANY MERISTEM 1 (BAM1) and WUSCHEL-related homeobox1 (WOX1) are involved in the regulation of margin cell developmental phase transition. Furthermore, exogenous auxin treatment (1 nanomolar,nM) promotes cell division, especially longitudinal cell division. This promotion of cell division did not occur in bam1 and wox1 mutants. Based on these findings, we hypothesized a new “moderate auxin concentration” model which emphasizes that a moderate auxin concentration is the key to triggering the developmental transition of meristematic cells.
en-copyright=
kn-copyright=
en-aut-name=JiangYuli
en-aut-sei=Jiang
en-aut-mei=Yuli
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=LiangJian
en-aut-sei=Liang
en-aut-mei=Jian
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=WangChunyan
en-aut-sei=Wang
en-aut-mei=Chunyan
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=TanLi
en-aut-sei=Tan
en-aut-mei=Li
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=KawanoYoji
en-aut-sei=Kawano
en-aut-mei=Yoji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=NagawaShingo
en-aut-sei=Nagawa
en-aut-mei=Shingo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
affil-num=1
en-affil=Institute for Translational Brain Reaearch, Fudan University
kn-affil=
affil-num=2
en-affil=Center for Excellence in Molecular Plant Science, Chinese Academy of Sciences
kn-affil=
affil-num=3
en-affil=Center for Excellence in Molecular Plant Science, Chinese Academy of Sciences
kn-affil=
affil-num=4
en-affil=Center for Excellence in Molecular Plant Science, Chinese Academy of Sciences
kn-affil=
affil-num=5
en-affil=Institute of Plant Science and Resources, Okayama University
kn-affil=
affil-num=6
en-affil=Center for Excellence in Molecular Plant Science, Chinese Academy of Sciences
kn-affil=
en-keyword=BAM1
kn-keyword=BAM1
en-keyword=WOX1
kn-keyword=WOX1
en-keyword=margin cells
kn-keyword=margin cells
en-keyword=auxin
kn-keyword=auxin
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250909
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=S100A8/A9-MCAM signaling promotes gastric cancer cell progression via ERK-c-Jun activation
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=S100 protein family members S100A8 and S100A9 function primarily as a heterodimer complex (S100A8/A9) in vivo. This complex has been implicated in various cancers, including gastric cancer (GC). Recent studies suggest that these proteins play significant roles in tumor progression, inflammation, and metastasis. However, the exact mechanisms by which S100A8/A9 contributes to GC pathogenesis remain unclear. This study investigates the role of S100A8/A9 and its receptor in GC. Immunohistochemical analysis was performed on GC tissue samples to assess the expression of the S100A8/A9 receptor melanoma cell adhesion molecule (MCAM). In vitro transwell migration and invasion assays were used to evaluate the motility and invasiveness of GC cells. Cell proliferation was assessed using a growth assay, and Western blotting (WB) was employed to examine downstream signaling pathways, including ERK and the transcription factor c-Jun, in response to S100A8/A9–MCAM interaction. S100A8/A9 stimulation enhanced both proliferation and migration through MCAM binding in GC cell lines. These cellular events were accompanied by ERK activation and c-Jun induction. Downregulation of MCAM suppressed both ERK phosphorylation and c-Jun expression, highlighting the importance of the S100A8/A9‒MCAM‒ERK‒c-Jun axis in promoting GC progression. These findings indicate that S100A8/A9 contributes to GC progression via MCAM, which activates the ERK‒c-Jun pathway. The S100A8/A9‒signaling axis may represent a novel therapeutic target in GC.
en-copyright=
kn-copyright=
en-aut-name=ChenYouyi
en-aut-sei=Chen
en-aut-mei=Youyi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=YangXu
en-aut-sei=Yang
en-aut-mei=Xu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=KinoshitaRie
en-aut-sei=Kinoshita
en-aut-mei=Rie
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=TomonobuNahoko
en-aut-sei=Tomonobu
en-aut-mei=Nahoko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=PanBo
en-aut-sei=Pan
en-aut-mei=Bo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=WuFangping
en-aut-sei=Wu
en-aut-mei=Fangping
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=ZhangXu
en-aut-sei=Zhang
en-aut-mei=Xu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=SagayamaKazumi
en-aut-sei=Sagayama
en-aut-mei=Kazumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=SunBei
en-aut-sei=Sun
en-aut-mei=Bei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=SakaguchiMasakiyo
en-aut-sei=Sakaguchi
en-aut-mei=Masakiyo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
affil-num=1
en-affil=Department of Breast Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine
kn-affil=
affil-num=2
en-affil=Department of Pathology, The First Affiliated Hospital, Zhejiang University School of Medicine
kn-affil=
affil-num=3
en-affil=Department of Cell Biology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences
kn-affil=
affil-num=4
en-affil=Department of Cell Biology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences
kn-affil=
affil-num=5
en-affil=The First Affiliated Hospital, Zhejiang University School of Medicine
kn-affil=
affil-num=6
en-affil=School of Pharmaceutical Sciences, Zhejiang Chinese Medical University
kn-affil=
affil-num=7
en-affil=Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine
kn-affil=
affil-num=8
en-affil=Faculties of Educational and Research Management Field, Okayama University
kn-affil=
affil-num=9
en-affil=Department of Pancreatic and Biliary Surgery, The First Affiliated Hospital of Harbin Medical University
kn-affil=
affil-num=10
en-affil=Department of Cell Biology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences
kn-affil=
en-keyword=Gastric cancer
kn-keyword=Gastric cancer
en-keyword=S100 protein
kn-keyword=S100 protein
en-keyword=MCAM
kn-keyword=MCAM
en-keyword=Inflammation
kn-keyword=Inflammation
en-keyword=Metastasis
kn-keyword=Metastasis
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202505
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Development of 50 krpm Ultra-High Speed IPMSM For EV Traction
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This paper develops an ultra-high-speed 50 krpm motor for traction applications. A typical IPMSM structure is used for the rotor in this paper. At ultra-high speeds, the winding structure has a large effect on winding losses. Hence, this paper investigates the AC loss of the winding. The AC loss includes the eddy current loss and circulating current loss in the winding. Additionally, the ultra-high speed raises concerns about the rotor's critical speed. Therefore, in this paper, the shaft of the developed motor is manufactured, and the critical speed is evaluated.
en-copyright=
kn-copyright=
en-aut-name=TsunataRen
en-aut-sei=Tsunata
en-aut-mei=Ren
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=KimuraMasaki
en-aut-sei=Kimura
en-aut-mei=Masaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=TakemotoMasatsugu
en-aut-sei=Takemoto
en-aut-mei=Masatsugu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=ImaiJun
en-aut-sei=Imai
en-aut-mei=Jun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
affil-num=1
en-affil=Okayama University, Graduate School of Environmental, Life, Natural Science and Technology
kn-affil=
affil-num=2
en-affil=Okayama University, Graduate School of Environmental, Life, Natural Science and Technology
kn-affil=
affil-num=3
en-affil=Okayama University, Graduate School of Environmental, Life, Natural Science and Technology
kn-affil=
affil-num=4
en-affil=Okayama University, Graduate School of Environmental, Life, Natural Science and Technology
kn-affil=
en-keyword=IPMSM
kn-keyword=IPMSM
en-keyword=winding
kn-keyword=winding
en-keyword=traction motor
kn-keyword=traction motor
en-keyword=50 krpm
kn-keyword=50 krpm
en-keyword=eddy current loss
kn-keyword=eddy current loss
END
start-ver=1.4
cd-journal=joma
no-vol=61
cd-vols=
no-issue=5
article-no=
start-page=6848
end-page=6860
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250401
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Impact of SMC Property on Axial-Flux Permanent Magnet Machine in Traction Applications
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This paper investigates the impact of soft magnetic composite (SMC) properties on an axial flux permanent magnet machine (AFPM) employing ferrite permanent magnet (PM) in traction applications. In general, the efficiency of an AFPM increases as the iron loss of the SMC decreases. However, the torque and output power of the AFPM also decrease at higher speed above the base speed due to the decrease in magnetic permeability because, typically, when the iron loss of an SMC decreases, the permeability also decreases. In this paper, many virtual SMC materials with different iron loss and permeability are used for finite element analysis of the proposed AFPM in order to clarify the sensitivity to SMC characteristics. First, the impact of the permeability on the torque and output power is investigated because the output power is very important in traction applications. Additionally, the total energy loss of AFPMs employing various SMCs is evaluated using the WLTC driving cycle. Furthermore, accuracy of simulation is evaluated using experiments of downscaled and actual size prototypes employing some SMC materials. Finally, this paper shows the newly developed SMC materials and discusses suitable SMC properties from the perspective of efficiency and output power in traction applications.
en-copyright=
kn-copyright=
en-aut-name=TsunataRen
en-aut-sei=Tsunata
en-aut-mei=Ren
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=TakemotoMasatsugu
en-aut-sei=Takemoto
en-aut-mei=Masatsugu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=ImaiJun
en-aut-sei=Imai
en-aut-mei=Jun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=SaitoTatsuya
en-aut-sei=Saito
en-aut-mei=Tatsuya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=UenoTomoyuki
en-aut-sei=Ueno
en-aut-mei=Tomoyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
affil-num=1
en-affil=Division of Industrial Innovation Sciences Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Division of Industrial Innovation Sciences Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Division of Industrial Innovation Sciences Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Sumitomo Electric Industries Ltd.
kn-affil=
affil-num=5
en-affil=Sumitomo Electric Industries Ltd.
kn-affil=
en-keyword=Axial gap electrical machine
kn-keyword=Axial gap electrical machine
en-keyword=axial flux electrical machine
kn-keyword=axial flux electrical machine
en-keyword=traction applications
kn-keyword=traction applications
en-keyword=soft magnetic composite (SMC)
kn-keyword=soft magnetic composite (SMC)
en-keyword=WLTC cycle
kn-keyword=WLTC cycle
en-keyword=ferrite magnet
kn-keyword=ferrite magnet
en-keyword=carbon fiber rotor
kn-keyword=carbon fiber rotor
en-keyword=output power
kn-keyword=output power
en-keyword=permanent magnet
kn-keyword=permanent magnet
END
start-ver=1.4
cd-journal=joma
no-vol=6
cd-vols=
no-issue=
article-no=
start-page=1370
end-page=1386
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250815
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Time-Efficient and Practical Design Method for Skewed PMSMs: Integrating Numerical Calculations With Limited 3-D-FEA
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This article proposes a time-efficient and practical design method for determining appropriate skew structures for permanent magnet synchronous motors (PMSMs). Various PMSMs use skew to suppress torque ripple, but 3-D finite element analysis (3-D-FEA) is required in order to accurately determine an appropriate structure for skewed PMSMs, resulting in a long analysis time. Therefore, this article constructs a hybrid analysis method that combines numerical calculations and minimal 3-D-FEA. The aim of this method is to be practical and easy to use, even for novice designers, and to accurately and quickly design skewed PMSMs. In this article, the effectiveness of the proposed method is clarified through several case studies, and then, a skewed PMSM designed using the proposed method is verified experimentally. It is also revealed that suppression of voltage harmonics contributes to improving the performance of PMSMs in experiments.
en-copyright=
kn-copyright=
en-aut-name=TsunataRen
en-aut-sei=Tsunata
en-aut-mei=Ren
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=IchimuraYu
en-aut-sei=Ichimura
en-aut-mei=Yu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=TakemotoMasatsugu
en-aut-sei=Takemoto
en-aut-mei=Masatsugu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=ImaiJun
en-aut-sei=Imai
en-aut-mei=Jun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
affil-num=1
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Design method
kn-keyword=Design method
en-keyword=efficiency
kn-keyword=efficiency
en-keyword=field weakening control
kn-keyword=field weakening control
en-keyword=interior permanent magnet synchronous motor (IPMSM)
kn-keyword=interior permanent magnet synchronous motor (IPMSM)
en-keyword=PMSMs
kn-keyword=PMSMs
en-keyword=skew
kn-keyword=skew
en-keyword=torque ripple
kn-keyword=torque ripple
en-keyword=voltage harmonics
kn-keyword=voltage harmonics
END
start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=17
article-no=
start-page=8145
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250822
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Augmentation of the Benzyl Isothiocyanate-Induced Antiproliferation by NBDHEX in the HCT-116 Human Colorectal Cancer Cell Line
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Increased drug metabolism and elimination are prominent mechanisms mediating multidrug resistance (MDR) to not only chemotherapy drugs but also anti-cancer natural products, such as benzyl isothiocyanate (BITC). To evaluate the possibility of combined utilization of a certain compound to overcome this resistance, we focused on glutathione S-transferase (GST)-dependent metabolism of BITC. The pharmacological treatment of a pi-class GST-selective inhibitor, 6-(7-nitro-2,1,3-benzoxadiazol-4-ylthio)hexanol (NBDHEX), significantly increased BITC-induced toxicity in human colorectal cancer HCT-116 cells. However, NBDHEX unexpectedly increased the level of the BITC–glutathione (GSH) conjugate as well as BITC-modified proteins, suggesting that NBDHEX might increase BITC-modified protein accumulation by inhibiting BITC–GSH excretion instead of inhibiting GST. Furthermore, NBDHEX significantly potentiated BITC-induced apoptosis with the enhanced activation of apoptosis-related pathways, such as c-Jun N-terminal kinase and caspase-3 pathways. These results suggested that combination treatment with NBDHEX may be an effective way to overcome MDR with drug efflux and thus induce the biological activity of BITC at lower doses.
en-copyright=
kn-copyright=
en-aut-name=SunRuitong
en-aut-sei=Sun
en-aut-mei=Ruitong
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=YanoAina
en-aut-sei=Yano
en-aut-mei=Aina
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=SatohAyano
en-aut-sei=Satoh
en-aut-mei=Ayano
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=MunemasaShintaro
en-aut-sei=Munemasa
en-aut-mei=Shintaro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=MurataYoshiyuki
en-aut-sei=Murata
en-aut-mei=Yoshiyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=NakamuraToshiyuki
en-aut-sei=Nakamura
en-aut-mei=Toshiyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=NakamuraYoshimasa
en-aut-sei=Nakamura
en-aut-mei=Yoshimasa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
affil-num=1
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=
affil-num=3
en-affil=Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University
kn-affil=
affil-num=4
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=
affil-num=5
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=
affil-num=6
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=
affil-num=7
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=
en-keyword=benzyl isothiocyanate
kn-keyword=benzyl isothiocyanate
en-keyword=multidrug resistance
kn-keyword=multidrug resistance
en-keyword=glutathione S-transferase
kn-keyword=glutathione S-transferase
en-keyword=NBDHEX
kn-keyword=NBDHEX
en-keyword=apoptosis
kn-keyword=apoptosis
en-keyword=c-Jun N-terminal kinase
kn-keyword=c-Jun N-terminal kinase
END
start-ver=1.4
cd-journal=joma
no-vol=13
cd-vols=
no-issue=
article-no=
start-page=113544
end-page=113556
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250630
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Optimized Ensemble Deep Learning for Real-Time Intrusion Detection on Resource-Constrained Raspberry Pi Devices
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The rapid growth of Internet of Things (IoT) networks has increased security risks, making it essential to have effective Intrusion Detection Systems (IDS) for real-time threat detection. Deep learning techniques offer promising solutions for such detection due to their superior complex pattern recognition and anomaly detection capabilities in large datasets. This paper proposes an optimized ensemble-based IDS designed specifically for efficient deployment on edge hardware. However, deploying such computationally intensive models on resource-limited edge devices remains a significant challenge due to model size and computational overhead on devices with limited processing capabilities. Building upon our previously developed stacked Long Short-Term Memory (LSTM) model integrated with ANOVA feature selection, we optimize it by integrating dual-stage model compression: pruning and quantization to create a lightweight model suitable for real-time inference on Raspberry Pi devices. To evaluate the system under realistic conditions, we combined with a Kafka-based testbed to simulate dynamic IoT environments with variable traffic loads, delays, and multiple simultaneous attack sources. This enables the assessment of detection performance under varying traffic volumes, latency, and overlapping attack scenarios. The proposed system maintains high detection performance with accuracy of 97.3% across all test scenarios, while efficiently leveraging multi-core processing with peak CPU usage reaching 111.8%. These results demonstrate the system’s practical viability for real-time IoT security at the edge.
en-copyright=
kn-copyright=
en-aut-name=MusthafaMuhammad Bisri
en-aut-sei=Musthafa
en-aut-mei=Muhammad Bisri
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=HudaSamsul
en-aut-sei=Huda
en-aut-mei=Samsul
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=NguyenTuy Tan
en-aut-sei=Nguyen
en-aut-mei=Tuy Tan
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=KoderaYuta
en-aut-sei=Kodera
en-aut-mei=Yuta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=NogamiYasuyuki
en-aut-sei=Nogami
en-aut-mei=Yasuyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
affil-num=1
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Interdisciplinary Education and Research Field, Okayama University
kn-affil=
affil-num=3
en-affil=School of Informatics, Computing, and Cyber Systems, Northern Arizona University
kn-affil=
affil-num=4
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=5
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Internet of things
kn-keyword=Internet of things
en-keyword=intrusion detection system
kn-keyword=intrusion detection system
en-keyword=stacked lstm
kn-keyword=stacked lstm
en-keyword=pruning model
kn-keyword=pruning model
en-keyword=optimizing model
kn-keyword=optimizing model
en-keyword=quantization model
kn-keyword=quantization model
en-keyword=raspberry pi
kn-keyword=raspberry pi
en-keyword=real-time detection
kn-keyword=real-time detection
en-keyword=apache kafka
kn-keyword=apache kafka
END
start-ver=1.4
cd-journal=joma
no-vol=13
cd-vols=
no-issue=
article-no=
start-page=89003
end-page=89024
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250519
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Security in Post-Quantum Era: A Comprehensive Survey on Lattice-Based Algorithms
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Lattice-based post-quantum cryptography (PQC) has attracted significant attention as a promising solution to the security challenges posed by quantum computing. Unlike traditional cryptographic algorithms, lattice-based schemes are expected to remain secure even in the presence of quantum attacks, making them essential for securing future data. Despite their strong theoretical foundations, lattice-based schemes face several practical challenges, particularly in optimizing performance and scalability for real-world applications. This survey provides a novel taxonomy that categorizes lattice-based PQC designs, with an emphasis on computational paradigms and security considerations. We systematically evaluate lattice-based PQC implementations across both software platforms, including central processing units and graphics processing units, as well as hardware platforms like field-programmable gate arrays and application-specific integrated circuits, highlighting their strengths and limitations. In addition, we explore the practical applications of lattice-based cryptography in fields such as secure communication, critical infrastructure, privacy-preserving data analytics, artificial intelligence, and trust and authentication systems. By offering a comprehensive overview of the current state of lattice-based PQC, this survey aims to provide valuable insights into the ongoing advancements and future research directions in the field as we transition to a post-quantum era.
en-copyright=
kn-copyright=
en-aut-name=NguyenHien
en-aut-sei=Nguyen
en-aut-mei=Hien
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=HudaSamsul
en-aut-sei=Huda
en-aut-mei=Samsul
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=NogamiYasuyuki
en-aut-sei=Nogami
en-aut-mei=Yasuyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=NguyenTuy Tan
en-aut-sei=Nguyen
en-aut-mei=Tuy Tan
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
affil-num=1
en-affil=School of Informatics, Computing, and Cyber Systems, Northern Arizona University
kn-affil=
affil-num=2
en-affil=Interdisciplinary Education and Research Field, Okayama University
kn-affil=
affil-num=3
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=School of Informatics, Computing, and Cyber Systems, Northern Arizona University
kn-affil=
en-keyword=Post-quantum cryptography
kn-keyword=Post-quantum cryptography
en-keyword=lattice-based cryptography
kn-keyword=lattice-based cryptography
en-keyword=number theoretic transform
kn-keyword=number theoretic transform
en-keyword=hardware and software implementation
kn-keyword=hardware and software implementation
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250406
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=MATERIAL PROPERTIES OF DIE-CASTING DIE AROUND HEAT-CHECKING CREATED BY A HIGH-PRESSURE ALUMINUM ALLOY DIE-CASTING OPERATION
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In this study, the material properties of a nitride die-casting die exhibiting heat-checking after the die-casting process were experimentally investigated using various methods. Based on the obtained results, the authors believe that several possible mechanisms underlying the formation of heat-checking can be identified. The microstructure of the die-casting die near the heat-checking region is characterized by equiaxed grains along the vicinity of the prior γ-grain boundaries, resulting from the lath martensitic formation. Additionally, numerous Cr–Mo–V-based nitride particles, approximately 100 nm in diameter, are precipitated. The surface hardness of the die-casting die, enhanced by nitriding, induces compressive residual stresses and increases adhesive forces. As a result of changes in microstructural characteristics and crack formation, the stress state near the die-casting die is altered, where compressive residual stresses, observed in the die-casting die, are released, leading to the tensile residual stresses. This phenomenon could accelerate the formation of a large number of heat-checking cracks.
en-copyright=
kn-copyright=
en-aut-name=OkayasuMitsuhiro
en-aut-sei=Okayasu
en-aut-mei=Mitsuhiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=ShimazuJunya
en-aut-sei=Shimazu
en-aut-mei=Junya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
affil-num=1
en-affil=Department of Mechanical Systems Engineering, Okayama University
kn-affil=
affil-num=2
en-affil=Department of Mechanical Systems Engineering, Okayama University
kn-affil=
en-keyword=die-casting
kn-keyword=die-casting
en-keyword=die
kn-keyword=die
en-keyword=heat-checking
kn-keyword=heat-checking
en-keyword=hydrogen embrittlement
kn-keyword=hydrogen embrittlement
en-keyword=mechanical property
kn-keyword=mechanical property
END
start-ver=1.4
cd-journal=joma
no-vol=13
cd-vols=
no-issue=4
article-no=
start-page=139
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250402
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=An Implementation of Creep Test Assisting System with Dial Gauge Needle Reading and Smart Lighting Function for Laboratory Automation
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=For decades, analog dial gauges have been essential for measuring and monitoring data at various industrial instruments including production machines and laboratory equipment. Among them, we focus on the instrument for creep test in a mechanical engineering laboratory, which evaluates material strength under sustained stress. Manual reading of gauges imposes significant labor demands, especially in long-duration tests. This burden further increases under low-lighting environments, where poor visibility can lead to misreading data points, potentially compromising the accuracy of test results. In this paper, to address the challenges, we implement a creep test assisting system that possesses the following features: (1) to save the installation cost, a web camera and Raspberry Pi are employed to capture images of the dial gauge and automate the needle reading by image processing in real time, (2) to ensure reliability under low-lighting environments, a smart lighting mechanism is integrated to turn on a supplementary light when the dial gauge is not clearly visible, and (3) to allow a user to stay in a distant place from the instrument during a creep test, material break is detected and the corresponding message is notified to a laboratory staff using LINE automatically. For evaluations, we install the implemented system into a material strength measuring instrument at Okayama University, Japan, and confirm the effectiveness and accuracy through conducting experiments under various lighting conditions.
en-copyright=
kn-copyright=
en-aut-name=KongDezheng
en-aut-sei=Kong
en-aut-mei=Dezheng
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=FunabikiNobuo
en-aut-sei=Funabiki
en-aut-mei=Nobuo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=FangShihao
en-aut-sei=Fang
en-aut-mei=Shihao
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=Noprianto
en-aut-sei=Noprianto
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=OkayasuMitsuhiro
en-aut-sei=Okayasu
en-aut-mei=Mitsuhiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=PuspitaningayuPradini
en-aut-sei=Puspitaningayu
en-aut-mei=Pradini
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
affil-num=1
en-affil= Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil= Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil= Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil= Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=5
en-affil= Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=6
en-affil= Department of Electrical Engineering, Universitas Negeri Surabaya
kn-affil=
en-keyword=creep test
kn-keyword=creep test
en-keyword=Raspberry Pi
kn-keyword=Raspberry Pi
en-keyword=dial gauge
kn-keyword=dial gauge
en-keyword=needle reading
kn-keyword=needle reading
en-keyword=smart lighting
kn-keyword=smart lighting
END
start-ver=1.4
cd-journal=joma
no-vol=58
cd-vols=
no-issue=3
article-no=
start-page=1571
end-page=1577
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250203
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Synthesis and Postfunctionalization of Acrylate-Appended Poly(cyclohexene carbonate)s: Modulation of Properties of CO2-Based Polymers
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Functional CO2-based polycarbonates are expected to be sustainable materials. Herein, a bifunctional aluminum porphyrin catalyzed the terpolymerization of cyclohexene oxide (CHO), acrylate-appended CHO, and CO2 to provide poly(cyclohexene carbonate)s (PCHCs) with acrylate groups. Postfunctionalization of PCHCs via Michael addition or Heck reaction enabled the incorporation of thiol, amine, and aromatics into PCHCs with high selectivity and efficiency. PCHCs with the flexible long alkyl chains showed a glass-transition temperature (Tg) of down to 52 °C, which was much lower than that of PCHC (127 °C). In sharp contrast, PCHCs with rigid pyrenyl groups showed Tg values of up to 152 °C and fluorescence emission. Thus, a wide range of polymers were obtained by robust and sustainable synthetic methods, and the functional groups modulated the properties of the CO2-based polycarbonates.
en-copyright=
kn-copyright=
en-aut-name=MaedaChihiro
en-aut-sei=Maeda
en-aut-mei=Chihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=InoueHina
en-aut-sei=Inoue
en-aut-mei=Hina
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=EmaTadashi
en-aut-sei=Ema
en-aut-mei=Tadashi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
affil-num=1
en-affil=Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=131
cd-vols=
no-issue=9
article-no=
start-page=744
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250828
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Optical and chemical properties of silver tree-like structure treated with gold galvanic substitution
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Galvanic gold substitution was executed in the presence of trisodium citrate on silver tree-like structures. No discernible difference in geometry was observed between the pre- and post-gold substitution phases, which benefited from the presence of citrate ions. The extent of gold substitution was regulated by the amount of gold ion solution added. After the gold substitution, an increase in extinction was observed in the ultraviolet region, indicating that gold was deposited at the surface. Raman scattering of para-toluenethiol was measured on the gold/silver tree-like structures at 488 nm excitations, where a decrease in the Raman peak intensity was observed as the quantity of gold ion solution increased. The results indicated that the optical property of silver was lost due to the increase of the amount of gold deposition. Concurrently, an investigation was conducted into the chemical resistance of the gold/silver tree-like structures, which was evaluated by measuring the resistivity inverse-proportional to the amount of silver ions dissolved by the diluted nitric acid. As the amount of gold ion solution added increased, the resistivity increased and became constant. The result implied that the surface chemical property had undergone a complete transformation into gold.
en-copyright=
kn-copyright=
en-aut-name=HondaKazushi
en-aut-sei=Honda
en-aut-mei=Kazushi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=TakeyasuNobuyuki
en-aut-sei=Takeyasu
en-aut-mei=Nobuyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
affil-num=1
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Gold/silver tree-like structures
kn-keyword=Gold/silver tree-like structures
en-keyword=Galvanic substitution
kn-keyword=Galvanic substitution
en-keyword=SERS
kn-keyword=SERS
en-keyword=Raman mapping
kn-keyword=Raman mapping
END
start-ver=1.4
cd-journal=joma
no-vol=12
cd-vols=
no-issue=5
article-no=
start-page=513
end-page=514
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250828
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Illuminating DNA repair in action: structural insights into a photocaged glycosylase complex
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=SugaMichihiro
en-aut-sei=Suga
en-aut-mei=Michihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
affil-num=1
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
en-keyword=X-ray free-electron lasers
kn-keyword=X-ray free-electron lasers
en-keyword=XFELs
kn-keyword=XFELs
en-keyword=time-resolved crystallography
kn-keyword=time-resolved crystallography
en-keyword=DNA repair
kn-keyword=DNA repair
en-keyword=hOGG1
kn-keyword=hOGG1
en-keyword=photocaged substrate analogs
kn-keyword=photocaged substrate analogs
END
start-ver=1.4
cd-journal=joma
no-vol=287
cd-vols=
no-issue=
article-no=
start-page=117674
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20251101
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A plant-insertable multi-enzyme biosensor for the real-time monitoring of stomatal sucrose uptake
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Monitoring sucrose transport in plants is essential for understanding plant physiology and improving agricultural practices, yet effective sensors for continuous and real-time in-vivo monitoring are lacking. In this study, we developed a plant-insertable sucrose sensor capable of real-time sucrose concentration monitoring and demonstrated its application as a useful tool for plant research by monitoring the sugar-translocating path from leaves to the lower portion of plants through the stem in living plants. The biosensor consists of a bilirubin oxidase-based biocathode and a needle-type bioanode integrating glucose oxidase, invertase, and mutarotase, with the two electrodes separated by an agarose gel for ionic connection. The sensor exhibits a sensitivity of 6.22 μA mM−1 cm−2, a limit of detection of 100 μM, a detection range up to 60 mM, and a response time of 90 s at 100 μM sucrose. Additionally, the sensor retained 86 % of its initial signal after 72 h of continuous measurement. Day-night monitoring from the biosensor inserted in strawberry guava (Psidium cattleianum) showed higher sucrose transport activity at night, following well the redistribution of photosynthetically produced sugars. In addition, by monitoring the forced translocation of sucrose dissolved in the stable isotopically labeled water, we demonstrated that a young seedling of Japanese cedar known as Sugi (Cryptomeria japonica) can absorb and transport both water and sucrose through light-dependently opened stomata, which is the recently revealed path for liquid uptake by higher plants. These findings highlight the potential of our sensor for studying dynamic plant processes and its applicability in real-time monitoring of sugar transport under diverse environmental conditions.
en-copyright=
kn-copyright=
en-aut-name=WuShiqi
en-aut-sei=Wu
en-aut-mei=Shiqi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=NakagawaWakutaka
en-aut-sei=Nakagawa
en-aut-mei=Wakutaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=MoriYuki
en-aut-sei=Mori
en-aut-mei=Yuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=AzhariSaman
en-aut-sei=Azhari
en-aut-mei=Saman
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=MéhesGábor
en-aut-sei=Méhes
en-aut-mei=Gábor
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=NishinaYuta
en-aut-sei=Nishina
en-aut-mei=Yuta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=KawanoTomonori
en-aut-sei=Kawano
en-aut-mei=Tomonori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=MiyakeTakeo
en-aut-sei=Miyake
en-aut-mei=Takeo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
affil-num=1
en-affil=Graduate School of Information, Production and Systems, Waseda University
kn-affil=
affil-num=2
en-affil=Graduate School of Information, Production and Systems, Waseda University
kn-affil=
affil-num=3
en-affil=Faculty and Graduate School of Environmental Engineering, The University of Kitakyushu
kn-affil=
affil-num=4
en-affil=Graduate School of Information, Production and Systems, Waseda University
kn-affil=
affil-num=5
en-affil=Graduate School of Information, Production and Systems, Waseda University
kn-affil=
affil-num=6
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
affil-num=7
en-affil=Faculty and Graduate School of Environmental Engineering, The University of Kitakyushu
kn-affil=
affil-num=8
en-affil=Graduate School of Information, Production and Systems, Waseda University
kn-affil=
en-keyword=Flexible wearable sensor
kn-keyword=Flexible wearable sensor
en-keyword=Plant monitoring
kn-keyword=Plant monitoring
en-keyword=Carbon fiber
kn-keyword=Carbon fiber
en-keyword=Multi-enzyme system
kn-keyword=Multi-enzyme system
END
start-ver=1.4
cd-journal=joma
no-vol=2892
cd-vols=
no-issue=
article-no=
start-page=012002
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20241101
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Crystal Grain Rotation during Tensile Test of Polycrystalline Pure Titanium Thin Sheet Based on Surface Height and Crystal Orientation
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Thin sheets and wires of polycrystalline pure titanium are important materials for various devices used in electrical, mechanical, dental, and medical fields. Since pure titanium shows strong anisotropy in elastic and plastic deformation, and the individual grains comprising a polycrystalline body have different orientations and geometries, inhomogeneous deformation always occurs on the microscopic scale. This inhomogeneity is more significant in thin films than in bulk materials. It is therefore important to investigate the inhomogeneous deformation of pure titanium thin sheets to ensure the reliability of various titanium devices. In this study, thin-sheet specimens made of polycrystalline pure titanium were subjected to tensile testing. Inhomogeneous deformation was evaluated on the basis of two kinds of crystal grain rotations based on surface height and crystal orientation. The results under elastic and plastic tensile conditions were compared.
en-copyright=
kn-copyright=
en-aut-name=TadaNaoya
en-aut-sei=Tada
en-aut-mei=Naoya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=OhashiHiroaki
en-aut-sei=Ohashi
en-aut-mei=Hiroaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=UemoriTakeshi
en-aut-sei=Uemori
en-aut-mei=Takeshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=SakamotoJunji
en-aut-sei=Sakamoto
en-aut-mei=Junji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
affil-num=1
en-affil=Okayama University
kn-affil=
affil-num=2
en-affil=Okayama University
kn-affil=
affil-num=3
en-affil=Okayama University
kn-affil=
affil-num=4
en-affil=Okayama University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=6
cd-vols=
no-issue=S1
article-no=
start-page=7
end-page=12
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202504
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Basic biology is not just “for the birds”: how avian studies have informed us about vertebrate reproduction
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Avian reproductive physiology has been studied for centuries, largely because of the importance of birds as food animals. It is likely that the ubiquity and ease of access to domesticated chickens led to them being used in some of the first experiments on transplantation of endocrine structures—in this case, the testes. Since then, study of seasonal changes in reproductive physiology (photoperiodism) in different orders of bird species has led to advances in the understanding of endocrine regulation of reproductive physiology and behavior. These include mechanisms of adult neuroplasticity, sexual selection, sperm competition, stress physiology, and circadian physiology. Here, we focus mainly on the discovery in birds of a neuropeptide named gonadotropin-inhibitory hormone that mostly has inhibitory effects on reproduction. This hormone has since been shown to exist in all mammals studied to date, including humans (it is known as RFamide-related peptide in mammals). We discuss the history and implications of avian studies on gonadotropin-inhibitory hormone/RFamide-related peptide for human reproductive biology.
en-copyright=
kn-copyright=
en-aut-name=BentleyGeorge E.
en-aut-sei=Bentley
en-aut-mei=George E.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=AizawaSayaka
en-aut-sei=Aizawa
en-aut-mei=Sayaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
affil-num=1
en-affil=Department of Integrative Biology and Helen Wills Neuroscience Institute, University of California at Berkeley
kn-affil=
affil-num=2
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
en-keyword=GnRH
kn-keyword=GnRH
en-keyword=GnIH
kn-keyword=GnIH
en-keyword=RFamide
kn-keyword=RFamide
END
start-ver=1.4
cd-journal=joma
no-vol=1863
cd-vols=
no-issue=
article-no=
start-page=149752
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202509
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Spearmint extract Neumentix downregulates amyloid-β accumulation by promoting phagocytosis in APP23 mice
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In recent years, many researchers have focused on natural compounds that can effectively delay symptoms of Alzheimer’s disease (AD). The spearmint extract Neumentix, which is rich in phenolic compounds, has been shown to reduce inflammatory responses and oxidative stress in mice. However, the effect of Neumentix on AD has not been thoroughly studied. In this study, APP23 transgenic female and male mice were administered Neumentix orally from 4 to 18 months of age at a dosage of 2.65 g/kg/day (containing 0.41 g/kg/day of rosmarinic acid). The impact was evaluated by behavioral tests and histological analyses and compared with APP23 mice to which Neumentix was not administered. The results showed that Neumentix administration increased the survival rate of APP23 mice and effectively reduced Aβ accumulation by enhancing its phagocytosis by microglial cells. These findings suggest that Neumentix is a potential natural nutritional treatment for improving the progression of AD.
en-copyright=
kn-copyright=
en-aut-name=HuXinran
en-aut-sei=Hu
en-aut-mei=Xinran
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=MoriharaRyuta
en-aut-sei=Morihara
en-aut-mei=Ryuta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=FukuiYusuke
en-aut-sei=Fukui
en-aut-mei=Yusuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=BianYuting
en-aut-sei=Bian
en-aut-mei=Yuting
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=SunHongming
en-aut-sei=Sun
en-aut-mei=Hongming
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=Ota-ElliottRicardo Satoshi
en-aut-sei=Ota-Elliott
en-aut-mei=Ricardo Satoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=IshiuraHiroyuki
en-aut-sei=Ishiura
en-aut-mei=Hiroyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=AbeKoji
en-aut-sei=Abe
en-aut-mei=Koji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=YamashitaToru
en-aut-sei=Yamashita
en-aut-mei=Toru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
affil-num=1
en-affil=Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=2
en-affil=Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=3
en-affil=Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=4
en-affil=Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=5
en-affil=Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=6
en-affil=Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=7
en-affil=Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=8
en-affil=National Center Hospital, National Center of Neurology and Psychiatry
kn-affil=
affil-num=9
en-affil=Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
en-keyword=Alzheimer's disease
kn-keyword=Alzheimer's disease
en-keyword=Amyloid-beta
kn-keyword=Amyloid-beta
en-keyword=Inflammation
kn-keyword=Inflammation
en-keyword=Neumentix
kn-keyword=Neumentix
en-keyword=Phagocytosis
kn-keyword=Phagocytosis
en-keyword=Survival rate
kn-keyword=Survival rate
END
start-ver=1.4
cd-journal=joma
no-vol=89
cd-vols=
no-issue=8
article-no=
start-page=1217
end-page=1226
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250527
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Microbial biotransformation of proteins into amino acids in unpolished Thai and polished Japanese rice varieties cultivated with distinct industrial strains of koji mold
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We previously reported the cultivation of industrial koji mold strains to produce unpolished Thai-colored rice kojis. These kojis, along with those made from unpolished Thai white rice and polished Japanese white rice, showed increased polyphenol content after cultivation, with the highest levels observed in unpolished Thai-colored rice kojis. In this study, an increase in both proteinogenic and non-proteinogenic amino acid contents, particularly γ-aminobutyric acid (GABA) content, was observed in both unpolished Thai and polished Japanese rice kojis, suggesting the ability of koji mold in the biotransformation of proteins. This increase was almost comparable even when using different rice varieties; in contrast, it varied depending on the koji mold strain used. The observed increase in both polyphenol and functional amino acid contents, especially GABA content, highlights the potential of unpolished Thai and polished Japanese rice kojis, particularly unpolished Thai-colored rice koji, as multifunctional materials, benefiting from polyphenol and amino acid functionalities.
en-copyright=
kn-copyright=
en-aut-name=JitpakdeeJirayu
en-aut-sei=Jitpakdee
en-aut-mei=Jirayu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=ItoKazunari
en-aut-sei=Ito
en-aut-mei=Kazunari
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=TaninoYuka
en-aut-sei=Tanino
en-aut-mei=Yuka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=TakeuchiHayato
en-aut-sei=Takeuchi
en-aut-mei=Hayato
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=YamashitaHideyuki
en-aut-sei=Yamashita
en-aut-mei=Hideyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=NakagawaTakuro
en-aut-sei=Nakagawa
en-aut-mei=Takuro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=NitodaTeruhiko
en-aut-sei=Nitoda
en-aut-mei=Teruhiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=KanzakiHiroshi
en-aut-sei=Kanzaki
en-aut-mei=Hiroshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
affil-num=1
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Industrial Technology Center of Okayama Prefecture
kn-affil=
affil-num=3
en-affil=Industrial Technology Center of Okayama Prefecture
kn-affil=
affil-num=4
en-affil=Industrial Technology Center of Okayama Prefecture
kn-affil=
affil-num=5
en-affil=Higuchi Matsunosuke Shoten Co., Ltd.
kn-affil=
affil-num=6
en-affil=Higuchi Matsunosuke Shoten Co., Ltd.
kn-affil=
affil-num=7
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=8
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Amino acid
kn-keyword=Amino acid
en-keyword=GABA
kn-keyword=GABA
en-keyword=koji mold
kn-keyword=koji mold
en-keyword=rice koji
kn-keyword=rice koji
en-keyword=Thai-colored rice
kn-keyword=Thai-colored rice
END
start-ver=1.4
cd-journal=joma
no-vol=98
cd-vols=
no-issue=6
article-no=
start-page=uoaf044
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250516
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Redox-potential-controlled intermolecular [2 + 2] cycloaddition of styrenes for the regio- and diastereoselective synthesis of multisubstituted halogenocyclobutanes
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The redox potential is an important factor for controlling the outcome of photoredox catalysis. Particularly, the selective oxidation of substrates and the control over the reactions are challenging when using photoredox catalysts that have high excited-state reduction potentials. In this study, a redox-potential-controlled intermolecular [2 + 2] cycloaddition of styrenes using a thioxanthylium organophotoredox (TXT) catalyst has been developed. This TXT catalyst selectively oxidizes β-halogenostyrenes and smoothly promotes the subsequent intermolecular [2 + 2] cycloadditions to give multisubstituted halogenocyclobutanes with excellent regio- and diastereoselectivity, which has not been effectively achieved by the hitherto reported representative photoredox catalysts. The synthesized halogenocyclobutanes exhibit interesting free radical scavenging activity. The present reaction contributes to the field of redox-potential-controlled electron transfer chemistry.
en-copyright=
kn-copyright=
en-aut-name=MizutaniAsuka
en-aut-sei=Mizutani
en-aut-mei=Asuka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=KondoMomo
en-aut-sei=Kondo
en-aut-mei=Momo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=ItakuraShoko
en-aut-sei=Itakura
en-aut-mei=Shoko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=TakamuraHiroyoshi
en-aut-sei=Takamura
en-aut-mei=Hiroyoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=HoshinoYujiro
en-aut-sei=Hoshino
en-aut-mei=Yujiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=NishikawaMakiya
en-aut-sei=Nishikawa
en-aut-mei=Makiya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=KadotaIsao
en-aut-sei=Kadota
en-aut-mei=Isao
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=KusamoriKosuke
en-aut-sei=Kusamori
en-aut-mei=Kosuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=TanakaKenta
en-aut-sei=Tanaka
en-aut-mei=Kenta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
affil-num=1
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Laboratory of Biopharmaceutics, Faculty of Pharmaceutical Sciences, Tokyo University of Science
kn-affil=
affil-num=3
en-affil=Laboratory of Biopharmaceutics, Faculty of Pharmaceutical Sciences, Tokyo University of Science
kn-affil=
affil-num=4
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=5
en-affil=Graduate School of Environment and Information Sciences, Yokohama National University
kn-affil=
affil-num=6
en-affil=Laboratory of Biopharmaceutics, Faculty of Pharmaceutical Sciences, Tokyo University of Science
kn-affil=
affil-num=7
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=8
en-affil=Laboratory of Cellular Drug Discovery and Development, Faculty of Pharmaceutical Sciences, Tokyo University of Science
kn-affil=
affil-num=9
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
en-keyword=redox potential
kn-keyword=redox potential
en-keyword=photoredox catalysis
kn-keyword=photoredox catalysis
en-keyword=[2 + 2] cycloaddition
kn-keyword=[2 + 2] cycloaddition
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250813
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The stress‒strain behavior of poly(methyl acrylate) microparticle-based polymers determined via optical microscopy
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The structural integrity of microparticle-based films is maintained through interpenetration of the superficial polymer chains of the microparticles that physically crosslink neighboring microparticles. This structural feature is fundamentally different from those of conventional polymers prepared by solvent casting or bulk polymerization. To understand the mechanical properties of such microparticle-based films, it is necessary to investigate the behavior of their constituent particles. However, methods are still being developed to evaluate microscale structural changes in microparticle-based films during the stretching process leading to film fracture. In this study, we propose a method that combines a stretching stage with optical microscopy to investigate the changes in particle morphology and its positional relationship with surrounding particles during uniaxial tensile tests on microparticle-based films. In a film consisting of cross-linked poly(methyl acrylate) microparticles, the deformation of the particles deviated from affine deformation due to the cross-linked structure. However, the deformation of a group of several (local) particles was confirmed to be location-dependent and larger than that of each particle forming the film. The method established here can be used to contribute to the design of tough microparticle-based films.
en-copyright=
kn-copyright=
en-aut-name=NishizawaYuichiro
en-aut-sei=Nishizawa
en-aut-mei=Yuichiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=KawamuraYuto
en-aut-sei=Kawamura
en-aut-mei=Yuto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=SasakiYuma
en-aut-sei=Sasaki
en-aut-mei=Yuma
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=SuzukiDaisuke
en-aut-sei=Suzuki
en-aut-mei=Daisuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
affil-num=1
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=raduate School of Textile Science & Technology, Shinshu University
kn-affil=
affil-num=3
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=140
cd-vols=
no-issue=
article-no=
start-page=745
end-page=776
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202506
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Advances in filler-crosslinked membranes for hydrogen fuel cells in sustainable energy generation
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Fuel cell membranes can be used in various ways to achieve zero-emission transport and energy systems, which offer a promising way to power production due to their higher efficiency compared to the internal combustion engine and the eco-environment. Perfluoro sulfonic acid membranes used for proton exchange membranes (PEMs) have certain drawbacks, like higher fuel permeability and expense, lower mechanical and chemical durability, and proton conductivity under low humidity and above 80 °C temperature. Researchers have drawn their attention to the production of polymer electrolyte membranes with higher proton conductivity, thermal and chemical resilience, maximum power density, lower fuel permeability, and lower expense. For sustainable clean energy generation, a review covering the most useful features of advanced material-associated membranes would be of great benefit to all interested communities. This paper endeavors to explore several types of novel inorganic fillers and crosslinking agents, which have been incorporated into membrane matrices to design the desired properties for an advanced fuel cell system. Membrane parameters such as proton conductivity, the ability of H2 transport, and the stability of the membrane are described. Research directions for developing fuel cell membranes are addressed based on several challenges suggested. The technological advancement of nanostructured materials for fuel cell applications is believed to significantly promote the future clean energy generation technology in practice.
en-copyright=
kn-copyright=
en-aut-name=IslamAminul
en-aut-sei=Islam
en-aut-mei=Aminul
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=ShahriarMamun
en-aut-sei=Shahriar
en-aut-mei=Mamun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=IslamMd. Tarekul
en-aut-sei=Islam
en-aut-mei=Md. Tarekul
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=TeoSiow Hwa
en-aut-sei=Teo
en-aut-mei=Siow Hwa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=KhanM. Azizur R.
en-aut-sei=Khan
en-aut-mei=M. Azizur R.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=Taufiq-YapYun Hin
en-aut-sei=Taufiq-Yap
en-aut-mei=Yun Hin
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=MohantaSuman C.
en-aut-sei=Mohanta
en-aut-mei=Suman C.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=RehanAriyan Islam
en-aut-sei=Rehan
en-aut-mei=Ariyan Islam
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=RaseeAdiba Islam
en-aut-sei=Rasee
en-aut-mei=Adiba Islam
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=KubraKhadiza Tul
en-aut-sei=Kubra
en-aut-mei=Khadiza Tul
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
en-aut-name=HasanMd. Munjur
en-aut-sei=Hasan
en-aut-mei=Md. Munjur
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=11
ORCID=
en-aut-name=SalmanMd. Shad
en-aut-sei=Salman
en-aut-mei=Md. Shad
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=12
ORCID=
en-aut-name=WaliullahR.M.
en-aut-sei=Waliullah
en-aut-mei=R.M.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=13
ORCID=
en-aut-name=HasanMd. Nazmul
en-aut-sei=Hasan
en-aut-mei=Md. Nazmul
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=14
ORCID=
en-aut-name=SheikhMd. Chanmiya
en-aut-sei=Sheikh
en-aut-mei=Md. Chanmiya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=15
ORCID=
en-aut-name=UchidaTetsuya
en-aut-sei=Uchida
en-aut-mei=Tetsuya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=16
ORCID=
en-aut-name=AwualMrs Eti
en-aut-sei=Awual
en-aut-mei=Mrs Eti
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=17
ORCID=
en-aut-name=HossainMohammed Sohrab
en-aut-sei=Hossain
en-aut-mei=Mohammed Sohrab
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=18
ORCID=
en-aut-name=ZnadHussein
en-aut-sei=Znad
en-aut-mei=Hussein
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=19
ORCID=
en-aut-name=AwualMd. Rabiul
en-aut-sei=Awual
en-aut-mei=Md. Rabiul
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=20
ORCID=
affil-num=1
en-affil=Department of Petroleum and Mining Engineering, Jashore University of Science and Technology
kn-affil=
affil-num=2
en-affil=Department of Petroleum and Mining Engineering, Jashore University of Science and Technology
kn-affil=
affil-num=3
en-affil=Department of Leather Engineering, Faculty of Mechanical Engineering, Khulna University of Engineering and Technology
kn-affil=
affil-num=4
en-affil=Industrial Chemistry Program, Faculty of Science and Natural Resources, Universiti Malaysia Sabah
kn-affil=
affil-num=5
en-affil=Department of Chemistry, Jashore University of Science and Technology
kn-affil=
affil-num=6
en-affil=Catalysis Science and Technology Research Centre, Faculty of Science, Universiti Putra Malaysia
kn-affil=
affil-num=7
en-affil=Department of Chemistry, Jashore University of Science and Technology
kn-affil=
affil-num=8
en-affil=Department of Chemistry, School of Science, The University of Tokyo
kn-affil=
affil-num=9
en-affil=Department of Chemistry, Graduate School of Science, Osaka University
kn-affil=
affil-num=10
en-affil=Department of Chemistry, Graduate School of Science, Osaka University
kn-affil=
affil-num=11
en-affil=Department of Chemistry, Graduate School of Science, Osaka University
kn-affil=
affil-num=12
en-affil=Institute for Chemical Research, Kyoto University
kn-affil=
affil-num=13
en-affil=Institute for Chemical Research, Kyoto University
kn-affil=
affil-num=14
en-affil=Department of Chemistry, School of Science, The University of Tokyo
kn-affil=
affil-num=15
en-affil=Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=16
en-affil=Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=17
en-affil=Institute for Chemical Research, Kyoto University
kn-affil=
affil-num=18
en-affil=Department of Chemistry, Graduate School of Science, Osaka University
kn-affil=
affil-num=19
en-affil=Western Australian School of Mines: Minerals, Energy and Chemical Engineering, Curtin University
kn-affil=
affil-num=20
en-affil=Western Australian School of Mines: Minerals, Energy and Chemical Engineering, Curtin University
kn-affil=
en-keyword=Advanced materials
kn-keyword=Advanced materials
en-keyword=Fuel cell
kn-keyword=Fuel cell
en-keyword=Hydrogen gas generation
kn-keyword=Hydrogen gas generation
en-keyword=Proton exchange membrane
kn-keyword=Proton exchange membrane
en-keyword=Polymer
kn-keyword=Polymer
END
start-ver=1.4
cd-journal=joma
no-vol=101
cd-vols=
no-issue=
article-no=
start-page=173
end-page=211
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202502
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Next frontier in photocatalytic hydrogen production through CdS heterojunctions
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Photocatalytic hydrogen (H₂) generation via solar-powered water splitting represents a sustainable solution to the global energy crisis. Cadmium sulfide (CdS) has emerged as a promising semiconductor photocatalyst due to its tunable bandgap, high physicochemical stability, cost-effectiveness, and widespread availability. This review systematically examines recent advancements in CdS-based heterojunctions, categorized into CdS-metal (Schottky), CdS-semiconductor (p-n, Z-scheme, S-scheme), and CdS-carbon heterojunctions. Various strategies employed to enhance photocatalytic efficiency and stability are discussed, including band structure engineering, surface modification, and the incorporation of crosslinked architectures. A critical evaluation of the underlying photocatalytic mechanisms highlights recent efforts to improve charge separation and photostability under operational conditions. This review highlights the challenges and opportunities in advancing CdS-based photocatalysts and provides a direction for future research. The insights presented aim to accelerate the development of efficient and durable CdS-based photocatalysts for sustainable H₂ production.
en-copyright=
kn-copyright=
en-aut-name=IslamAminul
en-aut-sei=Islam
en-aut-mei=Aminul
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=MalekAbdul
en-aut-sei=Malek
en-aut-mei=Abdul
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=IslamMd. Tarekul
en-aut-sei=Islam
en-aut-mei=Md. Tarekul
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=NipaFarzana Yeasmin
en-aut-sei=Nipa
en-aut-mei=Farzana Yeasmin
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=RaihanObayed
en-aut-sei=Raihan
en-aut-mei=Obayed
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=MahmudHasan
en-aut-sei=Mahmud
en-aut-mei=Hasan
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=UddinMd. Elias
en-aut-sei=Uddin
en-aut-mei=Md. Elias
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=IbrahimMohd Lokman
en-aut-sei=Ibrahim
en-aut-mei=Mohd Lokman
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=Abdulkareem-AlsultanG.
en-aut-sei=Abdulkareem-Alsultan
en-aut-mei=G.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=MondalAlam Hossain
en-aut-sei=Mondal
en-aut-mei=Alam Hossain
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
en-aut-name=HasanMd. Munjur
en-aut-sei=Hasan
en-aut-mei=Md. Munjur
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=11
ORCID=
en-aut-name=SalmanMd. Shad
en-aut-sei=Salman
en-aut-mei=Md. Shad
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=12
ORCID=
en-aut-name=KubraKhadiza Tul
en-aut-sei=Kubra
en-aut-mei=Khadiza Tul
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=13
ORCID=
en-aut-name=HasanMd. Nazmul
en-aut-sei=Hasan
en-aut-mei=Md. Nazmul
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=14
ORCID=
en-aut-name=SheikhMd. Chanmiya
en-aut-sei=Sheikh
en-aut-mei=Md. Chanmiya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=15
ORCID=
en-aut-name=UchidaTetsuya
en-aut-sei=Uchida
en-aut-mei=Tetsuya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=16
ORCID=
en-aut-name=RaseeAdiba Islam
en-aut-sei=Rasee
en-aut-mei=Adiba Islam
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=17
ORCID=
en-aut-name=RehanAriyan Islam
en-aut-sei=Rehan
en-aut-mei=Ariyan Islam
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=18
ORCID=
en-aut-name=AwualMrs Eti
en-aut-sei=Awual
en-aut-mei=Mrs Eti
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=19
ORCID=
en-aut-name=HossainMohammed Sohrab
en-aut-sei=Hossain
en-aut-mei=Mohammed Sohrab
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=20
ORCID=
en-aut-name=WaliullahR.M.
en-aut-sei=Waliullah
en-aut-mei=R.M.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=21
ORCID=
en-aut-name=AwualMd. Rabiul
en-aut-sei=Awual
en-aut-mei=Md. Rabiul
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=22
ORCID=
affil-num=1
en-affil=Department of Petroleum and Mining Engineering, Jashore University of Science and Technology
kn-affil=
affil-num=2
en-affil=Department of Petroleum and Mining Engineering, Jashore University of Science and Technology
kn-affil=
affil-num=3
en-affil=Department of Leather Engineering, Faculty of Mechanical Engineering, Khulna University of Engineering and Technology
kn-affil=
affil-num=4
en-affil=Department of Petroleum and Mining Engineering, Jashore University of Science and Technology
kn-affil=
affil-num=5
en-affil=Department of Pharmaceutical Sciences, College of Health Sciences and Pharmacy, Chicago State University
kn-affil=
affil-num=6
en-affil=Bangladesh Energy and Power Research Council (BEPRC)
kn-affil=
affil-num=7
en-affil=Department of Leather Engineering, Faculty of Mechanical Engineering, Khulna University of Engineering and Technology
kn-affil=
affil-num=8
en-affil=School of Chemistry and Environment, Faculty of Applied Sciences, Universiti Teknologi MARA
kn-affil=
affil-num=9
en-affil=Catalysis Science and Technology Research Centre, Faculty of Science, Universiti Putra Malaysia
kn-affil=
affil-num=10
en-affil=USAID - Bangladesh Advancing Development and Growth through Energy (BADGE) Project, Tetra Tech
kn-affil=
affil-num=11
en-affil=Department of Chemistry, Graduate School of Science, Osaka University
kn-affil=
affil-num=12
en-affil=Institute for Chemical Research, Kyoto University
kn-affil=
affil-num=13
en-affil=Department of Chemistry, Graduate School of Science, Osaka University
kn-affil=
affil-num=14
en-affil=Department of Chemistry, School of Science, The University of Tokyo
kn-affil=
affil-num=15
en-affil=Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=16
en-affil=Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=17
en-affil=Department of Chemistry, Graduate School of Science, Osaka University
kn-affil=
affil-num=18
en-affil=Department of Chemistry, School of Science, The University of Tokyo
kn-affil=
affil-num=19
en-affil=Institute for Chemical Research, Kyoto University
kn-affil=
affil-num=20
en-affil=Department of Chemistry, Graduate School of Science, Osaka University
kn-affil=
affil-num=21
en-affil=Institute for Chemical Research, Kyoto University
kn-affil=
affil-num=22
en-affil=Western Australian School of Mines: Minerals, Energy and Chemical Engineering, Curtin University
kn-affil=
en-keyword=H2
kn-keyword=H2
en-keyword=Sustainability
kn-keyword=Sustainability
en-keyword=Photocatalytic
kn-keyword=Photocatalytic
en-keyword=Photo-stability
kn-keyword=Photo-stability
en-keyword=Heterojunction
kn-keyword=Heterojunction
en-keyword=CdS
kn-keyword=CdS
END
start-ver=1.4
cd-journal=joma
no-vol=390
cd-vols=
no-issue=
article-no=
start-page=116594
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202508
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Extension-type flexible pneumatic actuator with a large extension force using a cross-link mechanism based on pantographs
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In this study, we propose an extension-type flexible pneumatic actuator (EFPA) with a high extension force and no buckling. In a previous study, soft actuators that extended in the axial direction by applying a supply pressure were unable to generate the extension’s pushing force because the actuators buckled owing to their high flexibility. To generate a pushing force, the circumferential stiffness of an extension-type flexible soft actuator must be reinforced. Therefore, a cross-linked EFPA (CL-EFPA) was developed, inspired by a pantograph that restrains the EFPA three-dimensionally using the proposed link mechanism. The proposed CL-EFPA consists of three EFPAs and a cross-linking mechanism for integrating each EFPA circumference. The pushing force of the CL-EFPA is approximately 3.0 times compared with that generated by the previous EFPA with plates to restrain its plane. To perform various bending motions, attitude control was performed using an analytical model and a system that included valves, sensors, and controllers.
en-copyright=
kn-copyright=
en-aut-name=ShimookaSo
en-aut-sei=Shimooka
en-aut-mei=So
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=TadachiKazuma
en-aut-sei=Tadachi
en-aut-mei=Kazuma
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=KamegawaTetsushi
en-aut-sei=Kamegawa
en-aut-mei=Tetsushi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
affil-num=1
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Mechanical and Systems Engineering Program, School of Engineering, Okayama University
kn-affil=
affil-num=3
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Soft robot
kn-keyword=Soft robot
en-keyword=Extension soft actuator
kn-keyword=Extension soft actuator
en-keyword=Link mechanism
kn-keyword=Link mechanism
en-keyword=Pantograph
kn-keyword=Pantograph
en-keyword=Attitude control
kn-keyword=Attitude control
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250801
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=From sewage sludge to agriculture: governmental initiatives, technologies, and sustainable practices in Japan
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Sewage sludge (SS), an underutilized but valuable resource for agriculture, contains essential nutrients, such as phosphorus. In Japan, where dependence on imported fertilizers is high and global price fluctuations persist, using SS as fertilizer presents a sustainable alternative aligned with circular economy goals. This review analyzes Japan’s current efforts to repurpose SS, focusing on technological developments and key policy initiatives that promote safe and effective application. Selective phosphorus recovery technologies mitigate resource depletion, while holistic approaches, such as composting and carbonization, maximize sludge utilization for agricultural applications. Government-led initiatives, including public awareness campaigns, quality assurance standards and research support, have facilitated the adoption of sludge-based fertilizers. To contextualize Japan’s position, international trends, particularly in the EU, are also examined. These comparisons reveal both common strategies and areas for policy and technological advancement, especially regarding regulation of emerging contaminants. By integrating national case studies with global perspectives, the study offers insights into the economic, environmental, and social benefits of SS reuse, contributing to Japan’s goals of resource self-sufficiency and carbon neutrality, while also informing broader sustainable agriculture transitions worldwide.
en-copyright=
kn-copyright=
en-aut-name=NguyenThu Huong
en-aut-sei=Nguyen
en-aut-mei=Thu Huong
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=FujiwaraTaku
en-aut-sei=Fujiwara
en-aut-mei=Taku
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=YamashitaHiromasa
en-aut-sei=Yamashita
en-aut-mei=Hiromasa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=TogawaHironori
en-aut-sei=Togawa
en-aut-mei=Hironori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=MiyakeHaruo
en-aut-sei=Miyake
en-aut-mei=Haruo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=GotoMasako
en-aut-sei=Goto
en-aut-mei=Masako
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=NagareHideaki
en-aut-sei=Nagare
en-aut-mei=Hideaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=NakamuraMasato
en-aut-sei=Nakamura
en-aut-mei=Masato
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=OritateFumiko
en-aut-sei=Oritate
en-aut-mei=Fumiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=IharaHirotaka
en-aut-sei=Ihara
en-aut-mei=Hirotaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
en-aut-name=MaedaMorihiro
en-aut-sei=Maeda
en-aut-mei=Morihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=11
ORCID=
affil-num=1
en-affil=Graduate School of Engineering, Kyoto University
kn-affil=
affil-num=2
en-affil=Graduate School of Engineering, Kyoto University
kn-affil=
affil-num=3
en-affil=Water Supply and Sewerage Department, National Institute for Land and Infrastructure Management
kn-affil=
affil-num=4
en-affil=Water Supply and Sewerage Department, National Institute for Land and Infrastructure Management
kn-affil=
affil-num=5
en-affil=R & D Department, Japan Sewage Works Agency
kn-affil=
affil-num=6
en-affil=1St Research Department, Japan Institute of Wastewater Engineering and Technology
kn-affil=
affil-num=7
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=8
en-affil=Institute for Rural Engineering, NARO
kn-affil=
affil-num=9
en-affil=Institute for Rural Engineering, NARO
kn-affil=
affil-num=10
en-affil=Institute for Agro-Environmental Sciences, NARO
kn-affil=
affil-num=11
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Japan
kn-keyword=Japan
en-keyword=Sewage sludge
kn-keyword=Sewage sludge
en-keyword=Agriculture
kn-keyword=Agriculture
en-keyword=Sludge fertilizers
kn-keyword=Sludge fertilizers
en-keyword=Governmental initiatives
kn-keyword=Governmental initiatives
END
start-ver=1.4
cd-journal=joma
no-vol=343
cd-vols=
no-issue=
article-no=
start-page=103558
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202509
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Progress in silicon-based materials for emerging solar-powered green hydrogen (H2) production
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The imperative demand for sustainable and renewable energy solutions has precipitated profound scientific investigations into photocatalysts designed for the processes of water splitting and hydrogen fuel generation. The abundance, low toxicity, high conductivity, and cost-effectiveness of silicon-based compounds make them attractive candidates for hydrogen production, driving ongoing research and technological advancements. Developing an effective synthesis method that is simple, economically feasible, and environmentally friendly is crucial for the widespread implementation of silicon-based heterojunctions for sustainable hydrogen production. Balancing the performance benefits with the economic and environmental considerations is a key challenge in the development of these systems. The specific performance of each catalyst type can vary depending on the synthesis method, surface modifications, catalyst loading, and reaction conditions. The confluence of high crystallinity, reduced oxygen concentration, and calcination temperature within the silicon nanoparticle has significantly contributed to its noteworthy hydrogen evolution rate. This review provides an up-to-date evaluation of Si-based photocatalysts, summarizing recent developments, guiding future research directions, and identifying areas that require further investigation. By combining theoretical insights and experimental findings, this review offers a comprehensive understanding of Si-based photocatalysts for water splitting. Through a comprehensive analysis, it aims to elucidate existing knowledge gaps and inspire future research directions towards optimized photocatalytic performance and scalability, ultimately contributing to the realization of sustainable hydrogen generation.
en-copyright=
kn-copyright=
en-aut-name=IslamAminul
en-aut-sei=Islam
en-aut-mei=Aminul
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=IslamMd. Tarekul
en-aut-sei=Islam
en-aut-mei=Md. Tarekul
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=TeoSiow Hwa
en-aut-sei=Teo
en-aut-mei=Siow Hwa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=MahmudHasan
en-aut-sei=Mahmud
en-aut-mei=Hasan
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=SwarazA.M.
en-aut-sei=Swaraz
en-aut-mei=A.M.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=RehanAriyan Islam
en-aut-sei=Rehan
en-aut-mei=Ariyan Islam
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=RaseeAdiba Islam
en-aut-sei=Rasee
en-aut-mei=Adiba Islam
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=KubraKhadiza Tul
en-aut-sei=Kubra
en-aut-mei=Khadiza Tul
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=HasanMd. Munjur
en-aut-sei=Hasan
en-aut-mei=Md. Munjur
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=SalmanMd. Shad
en-aut-sei=Salman
en-aut-mei=Md. Shad
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
en-aut-name=WaliullahR.M.
en-aut-sei=Waliullah
en-aut-mei=R.M.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=11
ORCID=
en-aut-name=HasanMd. Nazmul
en-aut-sei=Hasan
en-aut-mei=Md. Nazmul
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=12
ORCID=
en-aut-name=SheikhMd. Chanmiya
en-aut-sei=Sheikh
en-aut-mei=Md. Chanmiya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=13
ORCID=
en-aut-name=UchidaTetsuya
en-aut-sei=Uchida
en-aut-mei=Tetsuya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=14
ORCID=
en-aut-name=AwualMrs Eti
en-aut-sei=Awual
en-aut-mei=Mrs Eti
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=15
ORCID=
en-aut-name=HossainMohammed Sohrab
en-aut-sei=Hossain
en-aut-mei=Mohammed Sohrab
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=16
ORCID=
en-aut-name=ZnadHussein
en-aut-sei=Znad
en-aut-mei=Hussein
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=17
ORCID=
en-aut-name=AwualMd. Rabiul
en-aut-sei=Awual
en-aut-mei=Md. Rabiul
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=18
ORCID=
affil-num=1
en-affil=Department of Petroleum and Mining Engineering, Jashore University of Science and Technology
kn-affil=
affil-num=2
en-affil=Department of Leather Engineering, Faculty of Mechanical Engineering, Khulna University of Engineering and Technology
kn-affil=
affil-num=3
en-affil=Industrial Chemistry Program, Faculty of Science and Natural Resources, Universiti Malaysia Sabah
kn-affil=
affil-num=4
en-affil=Bangladesh Energy and Power Research Council (BEPRC)
kn-affil=
affil-num=5
en-affil=Department of Genetic Engineering and Biotechnology, Jashore University of Science and Technology
kn-affil=
affil-num=6
en-affil=Department of Chemistry, School of Science, The University of Tokyo
kn-affil=
affil-num=7
en-affil=Department of Chemistry, Graduate School of Science, Osaka University
kn-affil=
affil-num=8
en-affil=Department of Chemistry, Graduate School of Science, Osaka University
kn-affil=
affil-num=9
en-affil=Department of Chemistry, Graduate School of Science, Osaka University
kn-affil=
affil-num=10
en-affil=Institute for Chemical Research, Kyoto University
kn-affil=
affil-num=11
en-affil=Institute for Chemical Research, Kyoto University
kn-affil=
affil-num=12
en-affil=Department of Chemistry, School of Science, The University of Tokyo
kn-affil=
affil-num=13
en-affil=Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=14
en-affil=Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=15
en-affil=Department of Chemistry, Graduate School of Science, Osaka University
kn-affil=
affil-num=16
en-affil=Department of Chemistry, Graduate School of Science, Osaka University
kn-affil=
affil-num=17
en-affil=Western Australian School of Mines: Minerals, Energy and Chemical Engineering, Curtin University
kn-affil=
affil-num=18
en-affil=Western Australian School of Mines: Minerals, Energy and Chemical Engineering, Curtin University
kn-affil=
en-keyword=Silicon-based materials
kn-keyword=Silicon-based materials
en-keyword=Water splitting
kn-keyword=Water splitting
en-keyword=Hydrogen
kn-keyword=Hydrogen
en-keyword=Sustainable
kn-keyword=Sustainable
en-keyword=Clean and renewable energy
kn-keyword=Clean and renewable energy
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250810
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Elucidation of the relationship between solid‐state photoluminescence and crystal structures in 2,6‐substituted naphthalene derivatives
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Polycyclic aromatic hydrocarbons (PAHs) are known to exhibit fluorescence in solution, but generally do not emit in the solid state, with the notable exception of anthracene. We previously reported that PAHs containing multiple chromophores show solid-state emission, and we have investigated the relationship between their crystal structures and photoluminescence properties. In particular, PAHs with herringbone-type crystal packing, such as 2,6-diphenylnaphthalene (DPhNp), which has a slender and elongated molecular structure, exhibits red-shifted solid-state fluorescence spectra relative to their solution-phase counterparts. In this study, we synthesized 2,6-naphthalene derivatives bearing phenyl and/or pyridyl substituents (PhPyNp and DPyNp) and observed distinct, red-shifted emission in the solid state compared with that in solution. Crystallographic analysis revealed that both PhPyNp and DPyNp adopt herringbone packing motifs. These findings support our hypothesis that the spectral characteristics of PAH emission are closely linked to crystal packing arrangements, providing a useful strategy for screening PAH candidates for applications in organic semiconducting materials.
en-copyright=
kn-copyright=
en-aut-name=YamajiMinoru
en-aut-sei=Yamaji
en-aut-mei=Minoru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=YoshikawaIsao
en-aut-sei=Yoshikawa
en-aut-mei=Isao
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=MutaiToshiki
en-aut-sei=Mutai
en-aut-mei=Toshiki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=HoujouHirohiko
en-aut-sei=Houjou
en-aut-mei=Hirohiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=GotoKenta
en-aut-sei=Goto
en-aut-mei=Kenta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=TaniFumito
en-aut-sei=Tani
en-aut-mei=Fumito
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=SuzukiKengo
en-aut-sei=Suzuki
en-aut-mei=Kengo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=OkamotoHideki
en-aut-sei=Okamoto
en-aut-mei=Hideki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
affil-num=1
en-affil=Department of Applied Chemistry, Division of Materials and Environment, Graduate School of Science and Engineering, Gunma University
kn-affil=
affil-num=2
en-affil=Department of Materials and Environmental Science, Institute of Industrial Science, The University of Tokyo
kn-affil=
affil-num=3
en-affil=Technology Transfer Service Corporation
kn-affil=
affil-num=4
en-affil=Department of Materials and Environmental Science, Institute of Industrial Science, The University of Tokyo
kn-affil=
affil-num=5
en-affil=Institute for Materials Chemistry and Engineering, Kyushu University
kn-affil=
affil-num=6
en-affil=Institute for Materials Chemistry and Engineering, Kyushu University
kn-affil=
affil-num=7
en-affil=Hamamatsu Photonics K.K
kn-affil=
affil-num=8
en-affil=Department of Chemistry, Faculty of Environment, Life, Natural Sciences and Technology, Okayama University
kn-affil=
en-keyword=herringbone
kn-keyword=herringbone
en-keyword=polycyclic aromatic hydrocarbon
kn-keyword=polycyclic aromatic hydrocarbon
en-keyword=solid-state emission
kn-keyword=solid-state emission
END
start-ver=1.4
cd-journal=joma
no-vol=23
cd-vols=
no-issue=2
article-no=
start-page=71
end-page=81
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=2025
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Study on the Removal Technology of Trichloramine from Drinking Water Using Ultraviolet Light
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Trichloramine (NCl3) is an inorganic chloramine that causes a pungent chlorine-like odor, and it is difficult to remove its precursors (nitrogen organic compounds and/or ammonia) completely from water. Powdered activated carbon, ozonation, and UV treatment have been applied for decomposing NCl3, but free chlorine was also decomposed. So, it is necessary to develop a technique that can selectively control NCl3 without losing free chlorine. UV light-emitting diodes (265, 280, and 300 nm) and plasma emission UV sheet (347 ± 52 nm, hereafter 350 nm) were compared to find the optimal wavelengths that decompose NCl3 but not free chlorine. As a result, 90.6, 96.7, 92.5, and 77.8% of NCl3 were removed at 265, 280, 300 (3,600 mJ/cm2), and 350 nm (14,400 mJ/cm2), respectively. On the other hand, free chlorine at neutral pH (hypochlorous acid is dominant) and slightly alkaline pH (hypochlorite ion is dominant) was not decomposed at 350 nm, but at other wavelengths (i.e., 265, 280, and 300 nm) the removals were more than 64%. Therefore, UV radiation at 350 nm can be candidates to remove NCl3 while maintaining free chlorine. However, this method requires high input energy, and further study is needed for evaluating the practical applicability of this method by considering optimal reactor design.
en-copyright=
kn-copyright=
en-aut-name=HashiguchiAyumi
en-aut-sei=Hashiguchi
en-aut-mei=Ayumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=YoshidaShiho
en-aut-sei=Yoshida
en-aut-mei=Shiho
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=EchigoShinya
en-aut-sei=Echigo
en-aut-mei=Shinya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=TakanamiRyohei
en-aut-sei=Takanami
en-aut-mei=Ryohei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=NagareHideaki
en-aut-sei=Nagare
en-aut-mei=Hideaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
affil-num=1
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Natural Science and Technology, Shimane University
kn-affil=
affil-num=3
en-affil=Graduate School of Global Environmental Studies, Kyoto University
kn-affil=
affil-num=4
en-affil=Faculty of Design Technology, Osaka Sangyo University
kn-affil=
affil-num=5
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=trichloramine
kn-keyword=trichloramine
en-keyword=disinfection byproducts
kn-keyword=disinfection byproducts
en-keyword=drinking water
kn-keyword=drinking water
en-keyword=ultraviolet light
kn-keyword=ultraviolet light
END
start-ver=1.4
cd-journal=joma
no-vol=37
cd-vols=
no-issue=1
article-no=
start-page=43
end-page=53
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250220
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Fan-Shaped Pneumatic Soft Actuator that Can Operate Bending Motion for Ankle-Joint Rehabilitation Device
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Nowadays, owing to declining birthrates and an aging population, patients and the elderly requiring rehabilitation are not getting enough physical activity. In addressing this issue, devices for rehabilitating them have been researched and developed. However, rehabilitation devices are almost exclusively used for patients who can get up, rather than those who are bedridden. In this study, we aim to develop a rehabilitation device that can provide passive exercise for bedridden patients. The ankle joint was selected as the target joint because the patients who have undergone surgery for cerebrovascular disease remain bedridden, and early recovery in the acute stage is highly desirable. We proposed and tested a fan-shaped pneumatic soft actuator (FPSA) that can expand and bend stably at angles when supply pressure is applied as an actuator for a rehabilitation device to encourage patient exercise. However, the previous FPSA’s movement deviates from the arch of the foot owing to increased supply pressure. In the ideal case, FPSA should push the arch of the foot in an arc motion. This study proposes and tests the FPSA that can operate a bending motion to provide passive exercise to the ankle joint using tensile springs and a winding mechanism powered by a servo motor. The proposed FPSA has a significant advantage of exhibiting no hysteresis in its pressure-displacement characteristics. The configuration and static analytical model of the improved FPSA are described.
en-copyright=
kn-copyright=
en-aut-name=ShimookaSo
en-aut-sei=Shimooka
en-aut-mei=So
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=YokoyaHirosato
en-aut-sei=Yokoya
en-aut-mei=Hirosato
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=HamadaMasanori
en-aut-sei=Hamada
en-aut-mei=Masanori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=ShiomiShun
en-aut-sei=Shiomi
en-aut-mei=Shun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=UeharaTakenori
en-aut-sei=Uehara
en-aut-mei=Takenori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=HirayamaTakahiro
en-aut-sei=Hirayama
en-aut-mei=Takahiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=KamegawaTetsushi
en-aut-sei=Kamegawa
en-aut-mei=Tetsushi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
affil-num=1
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Interdisciplinary Science and Engineering in Health Systems, Okayama University
kn-affil=
affil-num=3
en-affil=Department of Rehabilitation Medicine, Okayama University Hospital
kn-affil=
affil-num=4
en-affil=Department of Rehabilitation Medicine, Okayama University Hospital
kn-affil=
affil-num=5
en-affil=Department of Orthopaedic Surgery, NHO Okayama Medical Center
kn-affil=
affil-num=6
en-affil=Department of Emergency, Critical Care and Disaster Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=7
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=fan-shaped pneumatic soft actuator
kn-keyword=fan-shaped pneumatic soft actuator
en-keyword=ankle-joint rehabilitation device
kn-keyword=ankle-joint rehabilitation device
en-keyword=hysteresis
kn-keyword=hysteresis
en-keyword=range of motion
kn-keyword=range of motion
END
start-ver=1.4
cd-journal=joma
no-vol=15
cd-vols=
no-issue=1
article-no=
start-page=7661
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20240916
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Neurotransmitter recognition by human vesicular monoamine transporter 2
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Human vesicular monoamine transporter 2 (VMAT2), a member of the SLC18 family, plays a crucial role in regulating neurotransmitters in the brain by facilitating their uptake and storage within vesicles, preparing them for exocytotic release. Because of its central role in neurotransmitter signalling and neuroprotection, VMAT2 is a target for neurodegenerative diseases and movement disorders, with its inhibitor being used as therapeutics. Despite the importance of VMAT2 in pharmacophysiology, the molecular basis of VMAT2-mediated neurotransmitter transport and its inhibition remains unclear. Here we show the cryo-electron microscopy structure of VMAT2 in the substrate-free state, in complex with the neurotransmitter dopamine, and in complex with the inhibitor tetrabenazine. In addition to these structural determinations, monoamine uptake assays, mutational studies, and pKa value predictions were performed to characterize the dynamic changes in VMAT2 structure. These results provide a structural basis for understanding VMAT2-mediated vesicular transport of neurotransmitters and a platform for modulation of current inhibitor design.
en-copyright=
kn-copyright=
en-aut-name=ImDohyun
en-aut-sei=Im
en-aut-mei=Dohyun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=JormakkaMika
en-aut-sei=Jormakka
en-aut-mei=Mika
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=JugeNarinobu
en-aut-sei=Juge
en-aut-mei=Narinobu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=KishikawaJun-ichi
en-aut-sei=Kishikawa
en-aut-mei=Jun-ichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=KatoTakayuki
en-aut-sei=Kato
en-aut-mei=Takayuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=SugitaYukihiko
en-aut-sei=Sugita
en-aut-mei=Yukihiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=NodaTakeshi
en-aut-sei=Noda
en-aut-mei=Takeshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=UemuraTomoko
en-aut-sei=Uemura
en-aut-mei=Tomoko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=ShiimuraYuki
en-aut-sei=Shiimura
en-aut-mei=Yuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=MiyajiTakaaki
en-aut-sei=Miyaji
en-aut-mei=Takaaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
en-aut-name=AsadaHidetsugu
en-aut-sei=Asada
en-aut-mei=Hidetsugu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=11
ORCID=
en-aut-name=IwataSo
en-aut-sei=Iwata
en-aut-mei=So
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=12
ORCID=
affil-num=1
en-affil=Department of Cell Biology, Graduate School of Medicine, Kyoto University
kn-affil=
affil-num=2
en-affil=Department of Cell Biology, Graduate School of Medicine, Kyoto University
kn-affil=
affil-num=3
en-affil=Department of Genomics and Proteomics, Advanced Science Research Center, Okayama University
kn-affil=
affil-num=4
en-affil=Department of Applied Biology, Kyoto Institute of Technology
kn-affil=
affil-num=5
en-affil=Institute for Protein Research, Osaka University
kn-affil=
affil-num=6
en-affil=Laboratory of Ultrastructural Virology, Institute for Life and Medical Sciences, Kyoto University
kn-affil=
affil-num=7
en-affil=Laboratory of Ultrastructural Virology, Institute for Life and Medical Sciences, Kyoto University
kn-affil=
affil-num=8
en-affil=Department of Cell Biology, Graduate School of Medicine, Kyoto University
kn-affil=
affil-num=9
en-affil=Department of Cell Biology, Graduate School of Medicine, Kyoto University
kn-affil=
affil-num=10
en-affil=Department of Genomics and Proteomics, Advanced Science Research Center, Okayama University
kn-affil=
affil-num=11
en-affil=Department of Cell Biology, Graduate School of Medicine, Kyoto University
kn-affil=
affil-num=12
en-affil=Department of Cell Biology, Graduate School of Medicine, Kyoto University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=2503029
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250601
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Polyglycerol‐Grafted Graphene Oxide with pH‐Responsive Charge‐Convertible Surface to Dynamically Control the Nanobiointeractions for Enhanced in Vivo Tumor Internalization
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=pH-responsive charge-convertible nanomaterials (NMs) ameliorate the treatment of cancer via simultaneously reducing nonspecific interactions during systemic circulation and improving targeted uptake within solid tumors. While promising, little is known about how the pH-responsiveness of charge-convertible NMs directs their interactions with biological systems, leading to compromised performance, including off-target retention and low specificity to tumor cells. In the present study, polyglycerol-grafted graphene oxide bearing amino groups (GOPGNH2) at different densities are reacted with dimethylmaleic anhydride (DMMA), a pH-responsive moiety, to generate a set of charge-convertible GOPGNH-DMMA variants. This permits the assessment of a quantitative correlation between the structure of GOPGNH-DMMA to their pH-responsiveness, their dynamic interactions with proteins and cells, as well as their in vivo biological fate. Through a systematic investigation, it is revealed that GOPGNH115-DMMA prepared from GOPGNH2 with higher amine density experienced fast charge conversion at pH 7.4 to induce non-specific interactions at early stages, whereas GOPGNH60-DMMA and GOPGNH30-DMMA prepared from lower amine density retarded off-target charge conversion to enhance tumor accumulation. Notably, GOPGNH60-DMMA is also associated with enough amounts of proteins under acidic conditions to promote in vivo tumor internalization. The findings will inform the design of pH-responsive NMs for enhanced treatment accuracy and efficacy.
en-copyright=
kn-copyright=
en-aut-name=ZouYajuan
en-aut-sei=Zou
en-aut-mei=Yajuan
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=BiancoAlberto
en-aut-sei=Bianco
en-aut-mei=Alberto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=NishinaYuta
en-aut-sei=Nishina
en-aut-mei=Yuta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
affil-num=1
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
affil-num=2
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
affil-num=3
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
en-keyword=charge conversion
kn-keyword=charge conversion
en-keyword=in vivo tumor internalization
kn-keyword=in vivo tumor internalization
en-keyword=non-specific interaction
kn-keyword=non-specific interaction
en-keyword=pH-responsiveness
kn-keyword=pH-responsiveness
en-keyword=polyglycerol-grafted graphene oxide
kn-keyword=polyglycerol-grafted graphene oxide
END
start-ver=1.4
cd-journal=joma
no-vol=3
cd-vols=
no-issue=4
article-no=
start-page=350
end-page=359
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20241211
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=N-Phenylphenothiazine Radical Cation with Extended π-Systems: Enhanced Heat Resistance of Triarylamine Radical Cations as Near-Infrared Absorbing Dyes
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=N-Phenylphenothiazine derivatives extended with various aryl groups were designed and synthesized. These derivatives have bent conformation in crystal and exhibit high solubility. Radical cations obtained by one-electron oxidation of these derivatives gave stable radical cations in solution and showed absorption in the near-infrared region. A radical cation was isolated as a stable salt, which exhibited heat resistance up to around 200 °C. A design strategy for radical cation-based near-infrared absorbing dyes, which are easily oxidized and stable not only as a solution but in solid form, is described.
en-copyright=
kn-copyright=
en-aut-name=YanoMasafumi
en-aut-sei=Yano
en-aut-mei=Masafumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=UedaMinami
en-aut-sei=Ueda
en-aut-mei=Minami
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=YajimaTatsuo
en-aut-sei=Yajima
en-aut-mei=Tatsuo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=MitsudoKoichi
en-aut-sei=Mitsudo
en-aut-mei=Koichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=KashiwagiYukiyasu
en-aut-sei=Kashiwagi
en-aut-mei=Yukiyasu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
affil-num=1
en-affil=Faculty of Chemistry, Material and Bioengineering, Kansai University
kn-affil=
affil-num=2
en-affil=Faculty of Chemistry, Material and Bioengineering, Kansai University
kn-affil=
affil-num=3
en-affil=Faculty of Chemistry, Material and Bioengineering, Kansai University
kn-affil=
affil-num=4
en-affil=Division of Applied Chemistry, Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=5
en-affil=Osaka Research Institute of Industrial Science and Technology
kn-affil=
en-keyword=triarylamines
kn-keyword=triarylamines
en-keyword=N-phenylphenothiazine
kn-keyword=N-phenylphenothiazine
en-keyword=radical cation
kn-keyword=radical cation
en-keyword=near-infrared absorption
kn-keyword=near-infrared absorption
END
start-ver=1.4
cd-journal=joma
no-vol=5
cd-vols=
no-issue=2
article-no=
start-page=606
end-page=617
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250130
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Mechanistic Insights Into Oxidative Response of Heat Shock Factor 1 Condensates
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Heat shock factor 1 (Hsf1), a hub protein in the stress response and cell fate decisions, senses the strength, type, and duration of stress to balance cell survival and death through an unknown mechanism. Recently, changes in the physical property of Hsf1 condensates due to persistent stress have been suggested to trigger apoptosis, highlighting the importance of biological phase separation and transition in cell fate decisions. In this study, the mechanism underlying Hsf1 droplet formation and oxidative response was investigated through 3D refractive index imaging of the internal architecture, corroborated by molecular dynamics simulations and biophysical/biochemical experiments. We found that, in response to oxidative conditions, Hsf1 formed liquid condensates that suppressed its internal mobility. Furthermore, these conditions triggered the hyper-oligomerization of Hsf1, mediated by disulfide bonds and secondary structure stabilization, leading to the formation of dense core particles in the Hsf1 droplet. Collectively, these data demonstrate how the physical property of Hsf1 condensates undergoes an oxidative transition by sensing redox conditions to potentially drive cell fate decisions.
en-copyright=
kn-copyright=
en-aut-name=KawagoeSoichiro
en-aut-sei=Kawagoe
en-aut-mei=Soichiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=MatsusakiMotonori
en-aut-sei=Matsusaki
en-aut-mei=Motonori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=MabuchiTakuya
en-aut-sei=Mabuchi
en-aut-mei=Takuya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=OgasawaraYuto
en-aut-sei=Ogasawara
en-aut-mei=Yuto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=WatanabeKazunori
en-aut-sei=Watanabe
en-aut-mei=Kazunori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=IshimoriKoichiro
en-aut-sei=Ishimori
en-aut-mei=Koichiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=SaioTomohide
en-aut-sei=Saio
en-aut-mei=Tomohide
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
affil-num=1
en-affil=Institute of Advanced Medical Sciences, Tokushima University
kn-affil=
affil-num=2
en-affil=Institute of Advanced Medical Sciences, Tokushima University
kn-affil=
affil-num=3
en-affil=Frontier Research Institute for Interdisciplinary Sciences, Tohoku University
kn-affil=
affil-num=4
en-affil=Department of Interdisciplinary Science and Engineering in Health Systems, Okayama University
kn-affil=
affil-num=5
en-affil=Department of Interdisciplinary Science and Engineering in Health Systems, Okayama University
kn-affil=
affil-num=6
en-affil=Department of Chemistry, Faculty of Science, Hokkaido University
kn-affil=
affil-num=7
en-affil=Institute of Advanced Medical Sciences, Tokushima University
kn-affil=
en-keyword=heat shock factor 1
kn-keyword=heat shock factor 1
en-keyword=oxidative hyper-oligomerization
kn-keyword=oxidative hyper-oligomerization
en-keyword=biological phase transition
kn-keyword=biological phase transition
en-keyword=stress response
kn-keyword=stress response
en-keyword=biophysics
kn-keyword=biophysics
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250819
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Hydrogen Embrittlement Characteristics of Austenitic Stainless Steels After Punching Process
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This study investigates the influence of microstructural characteristics on the hydrogen embrittlement of SUS304 austenitic stainless steel. The investigation utilized SUS304 sheets with a thickness of 1.5 mm, which were processed by punching with an 8 mm diameter to make specimens. Severe plastic deformation was localized near the punching edge, with the extent of deformation determined by the punching speed. Slower punching speeds induced more pronounced plastic strain, which was closely associated with work hardening and strain-induced martensitic (SIM) transformation. The SIM phase was predominantly observed within a depth of approximately 0.1 mm from the punched edge when processed at a punching speed of 0.25 mm/s, corresponding to roughly 10% of the cross-sectional area of the sample. These microstructural changes led to a significant reduction in tensile and fatigue strength, thereby exacerbating susceptibility to severe hydrogen embrittlement, despite the limited extent of microstructural alteration. Based on these findings, a modified Goodman diagram for SUS304 austenitic stainless steel, incorporating mechanical properties and hydrogen embrittlement behavior, was proposed.
en-copyright=
kn-copyright=
en-aut-name=OkayasuMitsuhiro
en-aut-sei=Okayasu
en-aut-mei=Mitsuhiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=LiXichang
en-aut-sei=Li
en-aut-mei=Xichang
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=KawakamiTomohisa
en-aut-sei=Kawakami
en-aut-mei=Tomohisa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
affil-num=1
en-affil=Department of Mechanical and Systems Engineering, Okayama University
kn-affil=
affil-num=2
en-affil=Department of Mechanical and Systems Engineering, Okayama University
kn-affil=
affil-num=3
en-affil=SHOYO SANGYO Co., Ltd.
kn-affil=
en-keyword= Hydrogen embrittlement
kn-keyword= Hydrogen embrittlement
en-keyword=Stainless steel
kn-keyword=Stainless steel
en-keyword=Punching process
kn-keyword=Punching process
en-keyword=Fatigue
kn-keyword=Fatigue
en-keyword=Tensile strength
kn-keyword=Tensile strength
END
start-ver=1.4
cd-journal=joma
no-vol=638
cd-vols=
no-issue=8049
article-no=
start-page=225
end-page=236
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250122
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Immune evasion through mitochondrial transfer in the tumour microenvironment
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Cancer cells in the tumour microenvironment use various mechanisms to evade the immune system, particularly T cell attack1. For example, metabolic reprogramming in the tumour microenvironment and mitochondrial dysfunction in tumour-infiltrating lymphocytes (TILs) impair antitumour immune responses2,3,4. However, detailed mechanisms of such processes remain unclear. Here we analyse clinical specimens and identify mitochondrial DNA (mtDNA) mutations in TILs that are shared with cancer cells. Moreover, mitochondria with mtDNA mutations from cancer cells are able to transfer to TILs. Typically, mitochondria in TILs readily undergo mitophagy through reactive oxygen species. However, mitochondria transferred from cancer cells do not undergo mitophagy, which we find is due to mitophagy-inhibitory molecules. These molecules attach to mitochondria and together are transferred to TILs, which results in homoplasmic replacement. T cells that acquire mtDNA mutations from cancer cells exhibit metabolic abnormalities and senescence, with defects in effector functions and memory formation. This in turn leads to impaired antitumour immunity both in vitro and in vivo. Accordingly, the presence of an mtDNA mutation in tumour tissue is a poor prognostic factor for immune checkpoint inhibitors in patients with melanoma or non-small-cell lung cancer. These findings reveal a previously unknown mechanism of cancer immune evasion through mitochondrial transfer and can contribute to the development of future cancer immunotherapies.
en-copyright=
kn-copyright=
en-aut-name=IkedaHideki
en-aut-sei=Ikeda
en-aut-mei=Hideki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=KawaseKatsushige
en-aut-sei=Kawase
en-aut-mei=Katsushige
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=NishiTatsuya
en-aut-sei=Nishi
en-aut-mei=Tatsuya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=WatanabeTomofumi
en-aut-sei=Watanabe
en-aut-mei=Tomofumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=TakenagaKeizo
en-aut-sei=Takenaga
en-aut-mei=Keizo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=InozumeTakashi
en-aut-sei=Inozume
en-aut-mei=Takashi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=IshinoTakamasa
en-aut-sei=Ishino
en-aut-mei=Takamasa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=AkiSho
en-aut-sei=Aki
en-aut-mei=Sho
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=LinJason
en-aut-sei=Lin
en-aut-mei=Jason
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=KawashimaShusuke
en-aut-sei=Kawashima
en-aut-mei=Shusuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
en-aut-name=NagasakiJoji
en-aut-sei=Nagasaki
en-aut-mei=Joji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=11
ORCID=
en-aut-name=UedaYouki
en-aut-sei=Ueda
en-aut-mei=Youki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=12
ORCID=
en-aut-name=SuzukiShinichiro
en-aut-sei=Suzuki
en-aut-mei=Shinichiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=13
ORCID=
en-aut-name=MakinoshimaHideki
en-aut-sei=Makinoshima
en-aut-mei=Hideki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=14
ORCID=
en-aut-name=ItamiMakiko
en-aut-sei=Itami
en-aut-mei=Makiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=15
ORCID=
en-aut-name=NakamuraYuki
en-aut-sei=Nakamura
en-aut-mei=Yuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=16
ORCID=
en-aut-name=TatsumiYasutoshi
en-aut-sei=Tatsumi
en-aut-mei=Yasutoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=17
ORCID=
en-aut-name=SuenagaYusuke
en-aut-sei=Suenaga
en-aut-mei=Yusuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=18
ORCID=
en-aut-name=MorinagaTakao
en-aut-sei=Morinaga
en-aut-mei=Takao
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=19
ORCID=
en-aut-name=Honobe-TabuchiAkiko
en-aut-sei=Honobe-Tabuchi
en-aut-mei=Akiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=20
ORCID=
en-aut-name=OhnumaTakehiro
en-aut-sei=Ohnuma
en-aut-mei=Takehiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=21
ORCID=
en-aut-name=KawamuraTatsuyoshi
en-aut-sei=Kawamura
en-aut-mei=Tatsuyoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=22
ORCID=
en-aut-name=UmedaYoshiyasu
en-aut-sei=Umeda
en-aut-mei=Yoshiyasu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=23
ORCID=
en-aut-name=NakamuraYasuhiro
en-aut-sei=Nakamura
en-aut-mei=Yasuhiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=24
ORCID=
en-aut-name=KiniwaYukiko
en-aut-sei=Kiniwa
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aut-affil-num=26
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en-aut-name=HayashiHidetoshi
en-aut-sei=Hayashi
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kn-aut-mei=
aut-affil-num=27
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en-aut-name=IkedaJun-ichiro
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en-aut-mei=Jun-ichiro
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kn-aut-mei=
aut-affil-num=28
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en-aut-name=HanazawaToyoyuki
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en-aut-name=ToyookaShinichi
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en-aut-name=ManoHiroyuki
en-aut-sei=Mano
en-aut-mei=Hiroyuki
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aut-affil-num=31
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en-aut-name=SuzukiTakuji
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aut-affil-num=32
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en-aut-name=OsawaTsuyoshi
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kn-aut-mei=
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en-aut-name=KawazuMasahito
en-aut-sei=Kawazu
en-aut-mei=Masahito
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en-aut-name=TogashiYosuke
en-aut-sei=Togashi
en-aut-mei=Yosuke
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aut-affil-num=35
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affil-num=1
en-affil=Division of Cell Therapy, Chiba Cancer Center Research Institute
kn-affil=
affil-num=2
en-affil=Division of Cell Therapy, Chiba Cancer Center Research Institute
kn-affil=
affil-num=3
en-affil=Department of Tumor Microenvironment, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=4
en-affil=Department of Tumor Microenvironment, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=5
en-affil=Division of Innovative Cancer Therapeutics, Chiba Cancer Center Research Institute
kn-affil=
affil-num=6
en-affil=Division of Cell Therapy, Chiba Cancer Center Research Institute
kn-affil=
affil-num=7
en-affil=Department of Tumor Microenvironment, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=8
en-affil=Division of Nutriomics and Oncology, RCAST, The University of Tokyo
kn-affil=
affil-num=9
en-affil=Division of Cell Therapy, Chiba Cancer Center Research Institute
kn-affil=
affil-num=10
en-affil=Division of Cell Therapy, Chiba Cancer Center Research Institute, Chiba, Japan Department of Dermatology, Graduate School of Medicine, Chiba University
kn-affil=
affil-num=11
en-affil=Department of Tumor Microenvironment, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=12
en-affil=Department of Tumor Microenvironment, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=13
en-affil=Department of Medical Oncology, Kindai University Faculty of Medicine
kn-affil=
affil-num=14
en-affil=Tsuruoka Metabolomics Laboratory, National Cancer Center
kn-affil=
affil-num=15
en-affil=Department of Surgical Pathology, Chiba Cancer Center
kn-affil=
affil-num=16
en-affil=Division of Cell Therapy, Chiba Cancer Center Research Institute
kn-affil=
affil-num=17
en-affil=Division of Cell Therapy, Chiba Cancer Center Research Institute
kn-affil=
affil-num=18
en-affil=Laboratory of Evolutionary Oncology, Chiba Cancer Center Research Institute
kn-affil=
affil-num=19
en-affil=Division of Cell Therapy, Chiba Cancer Center Research Institute
kn-affil=
affil-num=20
en-affil=Department of Dermatology, Faculty of Medicine, University of Yamanashi
kn-affil=
affil-num=21
en-affil=Department of Dermatology, Faculty of Medicine, University of Yamanashi
kn-affil=
affil-num=22
en-affil=Department of Dermatology, Faculty of Medicine, University of Yamanashi
kn-affil=
affil-num=23
en-affil=Department of Skin Oncology/Dermatology, Saitama Medical University International Medical Center
kn-affil=
affil-num=24
en-affil=Department of Skin Oncology/Dermatology, Saitama Medical University International Medical Center
kn-affil=
affil-num=25
en-affil=Department of Dermatology, Shinshu University School of Medicine
kn-affil=
affil-num=26
en-affil=Department of Allergy and Respiratory Medicine, Okayama University Hospital
kn-affil=
affil-num=27
en-affil=Department of Medical Oncology, Kindai University Faculty of Medicine
kn-affil=
affil-num=28
en-affil=Department of Diagnostic Pathology, Graduate School of Medicine, Chiba University
kn-affil=
affil-num=29
en-affil=Department of Otorhinolaryngology/Head and Neck Surgery, Chiba University Graduate School of Medicine
kn-affil=
affil-num=30
en-affil=Department of General Thoracic Surgery and Endocrinological Surgery, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=31
en-affil=Division of Cellular Signalling, National Cancer Center Research Institute
kn-affil=
affil-num=32
en-affil=Department of Respirology, Graduate School of Medicine, Chiba University
kn-affil=
affil-num=33
en-affil=Division of Nutriomics and Oncology, RCAST, The University of Tokyo
kn-affil=
affil-num=34
en-affil=Division of Cell Therapy, Chiba Cancer Center Research Institute
kn-affil=
affil-num=35
en-affil=Department of Tumor Microenvironment, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=12
cd-vols=
no-issue=5
article-no=
start-page=271
end-page=277
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20240329
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The Japan MSA registry: A multicenter cohort study of multiple system atrophy
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Background: Multiple system atrophy (MSA) is a neurodegenerative disorder characterized by autonomic failure and various motor symptoms. While MSA-C (cerebellar type) predominates in East Asia, MSA-P (parkinsonian type) predominates in Europe and North America. This nationwide patient registry aimed to (1) conduct a prospective natural history study of MSA in Japan, (2) facilitate patient recruitment for clinical trials, and (3) deposit bioresources and clinical information in a biobank.
Methods: Thirteen institutions participated in this study. Clinical information was obtained by neurologists from the patients visiting the hospital every 12 months to assess the UMSARS Part 2 scores and by telephone interviews by nurses every 6 months to assess UMSARS Part 1 scores and to determine whether clinical events had occurred.
Results: Demographic data from 329 MSA patients (216 MSA-C and 113 MSA-P) were analyzed. The mean age at symptom onset was 58.2 years (standard deviation, 8.9); the mean duration of symptoms at enrollment was 3.5 years (standard deviation, 2.2). The mean 12-month changes in the UMSARS Part 1 and Part 2 scores were 7.9 (standard deviation, 5.6) and 6.4 (standard deviation, 5.9), respectively. The patient registry proved useful in recruiting participants for clinical trials, including those with gene variants. Clinical information and biospecimens were deposited in a biobank.
Discussion: The study highlighted the importance of telephone interviews in minimizing drop-out rates in natural history studies and demonstrated similar MSA progression rates across populations. The deposited bioresources are available to researchers upon request, aiming to contribute to future MSA researches.
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kn-copyright=
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en-aut-name=IshimotoTomoyuki
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en-aut-name=TakashimaHiroshi
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en-aut-name=OgataKatsuhisa
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en-aut-name=IshikawaKinya
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kn-aut-sei=
kn-aut-mei=
aut-affil-num=33
ORCID=
en-aut-name=NishidaYoichiro
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en-aut-name=IshiguroTaro
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en-aut-name=OzakiKokoro
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aut-affil-num=38
ORCID=
affil-num=1
en-affil=Department of Neurology, Graduate School of Medicine, The University of Tokyo
kn-affil=
affil-num=2
en-affil=Department of Neurology, Graduate School of Medicine, The University of Tokyo
kn-affil=
affil-num=3
en-affil=Department of Neurology, Graduate School of Medicine, The University of Tokyo
kn-affil=
affil-num=4
en-affil=Department of Neurology, Graduate School of Medicine, The University of Tokyo
kn-affil=
affil-num=5
en-affil=Department of Neurology, Okayama University Graduate School of Medicine and Dentistry
kn-affil=
affil-num=6
en-affil=Department of Neurology, Graduate School of Medicine, The University of Tokyo
kn-affil=
affil-num=7
en-affil=Department of Neurology, Graduate School of Medicine, The University of Tokyo
kn-affil=
affil-num=8
en-affil=Department of Neurology, Graduate School of Medicine, The University of Tokyo
kn-affil=
affil-num=9
en-affil=Department of Neurology, Nagoya University Graduate School of Medicine
kn-affil=
affil-num=10
en-affil=Department of Neurology, Nagoya University Graduate School of Medicine
kn-affil=
affil-num=11
en-affil=Department of Neurology, Brain Research Institute, Niigata University
kn-affil=
affil-num=12
en-affil=Department of Neurology, Brain Research Institute, Niigata University
kn-affil=
affil-num=13
en-affil=Department of Neurology, Brain Research Institute, Niigata University
kn-affil=
affil-num=14
en-affil=Department of Neurology, Graduate School of Medicine, Chiba University
kn-affil=
affil-num=15
en-affil=Department of Neurology, Graduate School of Medicine, Chiba University
kn-affil=
affil-num=16
en-affil=Department of Neurology, Graduate School of Medicine, Chiba University
kn-affil=
affil-num=17
en-affil=Department of Neurology, Kyoto University Graduate School of Medicine
kn-affil=
affil-num=18
en-affil=Department of Human Health Sciences, Kyoto University Graduate School of Medicine
kn-affil=
affil-num=19
en-affil=Department of Neurology, Kyoto University Graduate School of Medicine
kn-affil=
affil-num=20
en-affil=Department of Neurology, Kyoto University Graduate School of Medicine
kn-affil=
affil-num=21
en-affil=Division of Neurology, Department of Brain and Neurosciences, Faculty of Medicine, Tottori University
kn-affil=
affil-num=22
en-affil=Division of Neurology, Department of Brain and Neurosciences, Faculty of Medicine, Tottori University
kn-affil=
affil-num=23
en-affil=Division of Neurology, Department of Brain and Neurosciences, Faculty of Medicine, Tottori University
kn-affil=
affil-num=24
en-affil=Division of Neurology, Department of Brain and Neurosciences, Faculty of Medicine, Tottori University
kn-affil=
affil-num=25
en-affil=Department of Neurology, Okayama University Graduate School of Medicine and Dentistry
kn-affil=
affil-num=26
en-affil=Department of Neurology, Okayama University Graduate School of Medicine and Dentistry
kn-affil=
affil-num=27
en-affil=Department of Neurology and Geriatrics, Graduate School of Medical and Dental Sciences, Kagoshima University
kn-affil=
affil-num=28
en-affil=Department of Neurology and Geriatrics, Graduate School of Medical and Dental Sciences, Kagoshima University
kn-affil=
affil-num=29
en-affil=Department of Neurology, Graduate School of Medical Sciences, Kyushu University
kn-affil=
affil-num=30
en-affil=Department of Neurology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University
kn-affil=
affil-num=31
en-affil=Department of Neurology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University
kn-affil=
affil-num=32
en-affil=Department of Neurology, Higashi-Saitama National Hospital
kn-affil=
affil-num=33
en-affil=Department of Neurology and Neurological Science, Tokyo Medical and Dental University
kn-affil=
affil-num=34
en-affil=Department of Neurology and Neurological Science, Tokyo Medical and Dental University
kn-affil=
affil-num=35
en-affil=Department of Neurology and Neurological Science, Tokyo Medical and Dental University
kn-affil=
affil-num=36
en-affil=Department of Neurology and Neurological Science, Tokyo Medical and Dental University
kn-affil=
affil-num=37
en-affil=Department of Neurology and Neurological Science, Tokyo Medical and Dental University
kn-affil=
affil-num=38
en-affil=Department of Neurology, Graduate School of Medicine, The University of Tokyo
kn-affil=
en-keyword=multicenter cohort study
kn-keyword=multicenter cohort study
en-keyword=multiple system atrophy
kn-keyword=multiple system atrophy
en-keyword=natural history
kn-keyword=natural history
en-keyword=patient registry
kn-keyword=patient registry
END
start-ver=1.4
cd-journal=joma
no-vol=508
cd-vols=
no-issue=
article-no=
start-page=111242
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202509
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Enhanced aboveground biomass density estimation in Central Vietnamese forests
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Accurate estimation of spatially explicit forest aboveground biomass density (AGBD) is essential for supporting climate change mitigation strategies. Recent studies have demonstrated the predictive effectiveness of the random forest (RF) algorithm in forest AGBD estimation utilizing multi-source remote sensing (RS) data. However, the RF-based estimates may be further enhanced by integrating RF with kriging techniques that account for spatial autocorrelation in model residuals. Therefore, we investigated the performance of random forest ordinary kriging (RFOK) and random forest co-kriging (RFCK) for estimating AGBD in Central Vietnamese forests using Advanced Land Observing Satellite-2 Phased Array L-band Synthetic Aperture Radar-2 (ALOS-2 PALSAR-2), Sentinel-1 (S1), and Sentinel-2 (S2) imageries. 277 predictors, including spectral bands, radar backscatter coefficients, vegetation indices, biophysical variables, and texture metrics, were derived from these RS datasets and statistically linked to field measurements from 104 geo-referenced forest inventory plots. The results showed that textures, modified chlorophyll absorption ratio index (MCARI), and radar backscatters were key contributors to AGBD variability. The fusion of ALOS-2 PALSAR-2 and S2 data yielded the highest RF performance, with coefficient of determination (R2), root mean square error (RMSE), and mean absolute error (MAE) achieving 0.75, 39.15 t.ha-1, and 32.20 t.ha-1, respectively. Incorporating interpolated residuals by ordinary kriging and co-kriging into RF predictions enhanced estimation accuracy, with relative improvements of 5.74–7.04 % in R2, 8.73–10.91 % in RMSE, and 13.62–15.27 % in MAE, yet these gains remained limited. Although RFOK achieved marginally better accuracy (R2 = 0.80, RMSE = 34.88 t.ha-1, MAE = 27.28 t.ha-1) compared to RFCK (R2 = 0.79, RMSE = 35.73 t.ha-1, MAE = 27.81 t.ha-1), the latter reduced estimation bias more effectively, likely due to the inclusion of elevation as a covariate in the co-kriging process. These findings underscore the potential of the hybrid RF-kriging frameworks for improving spatial AGBD estimation, offering a robust approach for carbon accounting in tropical ecosystems.
en-copyright=
kn-copyright=
en-aut-name=HoViet Hoang
en-aut-sei=Ho
en-aut-mei=Viet Hoang
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=MoritaHidenori
en-aut-sei=Morita
en-aut-mei=Hidenori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=BachoferFelix
en-aut-sei=Bachofer
en-aut-mei=Felix
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=HoThanh Ha
en-aut-sei=Ho
en-aut-mei=Thanh Ha
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
affil-num=1
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=German Aerospace Center (DLR), Earth Observation Center
kn-affil=
affil-num=4
en-affil=University of Agriculture and Forestry, Hue University
kn-affil=
en-keyword=Forest aboveground biomass density
kn-keyword=Forest aboveground biomass density
en-keyword=Random forest
kn-keyword=Random forest
en-keyword=Ordinary kriging
kn-keyword=Ordinary kriging
en-keyword=Co-kriging
kn-keyword=Co-kriging
en-keyword=Multispectral
kn-keyword=Multispectral
en-keyword=Multi-frequency synthetic aperture radar
kn-keyword=Multi-frequency synthetic aperture radar
END
start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=5
article-no=
start-page=1554
end-page=1577
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250405
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Comparison of geostatistics, machine learning algorithms, and their hybrid approaches for modeling soil organic carbon density in tropical forests
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Purpose Understanding the spatial variability of soil organic carbon density (SOCD) in tropical forests is necessary for efficient climate change mitigation initiatives. However, accurately modeling SOCD in these landscapes is challenging due to low-density sampling efforts and the limited availability of in-situ data caused by constrained accessibility. In this study, we aimed to explore the most suitable modeling technique for SOCD estimation in the context of tropical forest ecosystems.
Methods To support the research, thirty predictor covariates derived from remote sensing data, topographic attributes, climatic factors, and geographic positions were utilized, along with 104 soil samples collected from the top 30 cm of soil in Central Vietnamese tropical forests. We compared the effectiveness of geostatistics (ordinary kriging, universal kriging, and kriging with external drift), machine learning (ML) algorithms (random forest and boosted regression tree), and their hybrid approaches (random forest regression kriging and boosted regression tree regression kriging) for the prediction of SOCD. Prediction accuracy was evaluated using the coefficient of determination (R2), the root mean squared error (RMSE), and the mean absolute error (MAE) obtained from leave-one-out cross-validation.
Results The study results indicated that hybrid approaches performed best in predicting forest SOCD with the greatest values of R2 and the lowest values of MAE and RMSE, and the ML algorithms were more accurate than geostatistics. Additionally, the prediction maps produced by the hybridization showed the most realistic SOCD pattern, whereas the kriged maps were prone to have smoother patterns, and ML-based maps were inclined to possess more detailed patterns. The result also revealed the superiority of the ML plus residual kriging approaches over the ML models in reducing the underestimation of large SOCD values in high-altitude mountain areas and the overestimation of low SOCD values in low-lying terrain areas.
Conclusion Our findings suggest that the hybrid approaches of geostatistics and ML models are most suitable for modeling SOCD in tropical forests.
en-copyright=
kn-copyright=
en-aut-name=HoViet Hoang
en-aut-sei=Ho
en-aut-mei=Viet Hoang
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=MoritaHidenori
en-aut-sei=Morita
en-aut-mei=Hidenori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=HoThanh Ha
en-aut-sei=Ho
en-aut-mei=Thanh Ha
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=BachoferFelix
en-aut-sei=Bachofer
en-aut-mei=Felix
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=NguyenThi Thuong
en-aut-sei=Nguyen
en-aut-mei=Thi Thuong
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
affil-num=1
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=University of Agriculture and Forestry, Hue University
kn-affil=
affil-num=4
en-affil=German Aerospace Center (DLR), Earth Observation Center
kn-affil=
affil-num=5
en-affil=University of Agriculture and Forestry, Hue University
kn-affil=
en-keyword=Digital soil mapping
kn-keyword=Digital soil mapping
en-keyword=Hybrid approaches
kn-keyword=Hybrid approaches
en-keyword=Kriging
kn-keyword=Kriging
en-keyword=Machine learning
kn-keyword=Machine learning
en-keyword=Soil organic carbon density
kn-keyword=Soil organic carbon density
en-keyword=Tropical forests
kn-keyword=Tropical forests
END
start-ver=1.4
cd-journal=joma
no-vol=68
cd-vols=
no-issue=
article-no=
start-page=1319
end-page=1323
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=2025
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Method for predicting crack size using amplitude change in titanium alloy under bending vibration
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The natural frequency of a material decreases owing to the presence of cracks. Thus, when a crack initiates in a material under vibration, the amplitude of the vibration changes with the crack propagation. In this study, we investigated a method for predicting crack size using the amplitude change in a plate specimen of a titanium alloy under bending vibration. The bending displacement amplitudes were measured using high-speed camera images of the specimens. The crack sizes were measured using optical microscopy images of plastic replicas of the specimen surfaces that were obtained after interrupting tests at specified intervals. By using the relationship between the total area of the cracks and bending displacement amplitude for tests at two different vibration frequencies as well as the relationship between the vibration frequency and bending displacement amplitude for an undamaged specimen, the bending displacement amplitude at any vibration frequency can be monitored to predict the total area of the cracks.
en-copyright=
kn-copyright=
en-aut-name=SakamotoJunji
en-aut-sei=Sakamoto
en-aut-mei=Junji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=TadaNaoya
en-aut-sei=Tada
en-aut-mei=Naoya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=UemoriTakeshi
en-aut-sei=Uemori
en-aut-mei=Takeshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
affil-num=1
en-affil=Okayama University, Faculty of Environmental, Life, Natural Science and Technology
kn-affil=
affil-num=2
en-affil=Okayama University, Faculty of Environmental, Life, Natural Science and Technology
kn-affil=
affil-num=3
en-affil=Okayama University, Faculty of Environmental, Life, Natural Science and Technology
kn-affil=
en-keyword=Vibration
kn-keyword=Vibration
en-keyword=Fatigue crack propagation
kn-keyword=Fatigue crack propagation
en-keyword=Non-destructive inspection
kn-keyword=Non-destructive inspection
en-keyword=Titanium alloy
kn-keyword=Titanium alloy
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250811
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Study of the Mechanical Properties of Al–Mg ADC6 Aluminum Alloy Produced by Unidirectional Casting Under Various Cooling Rates
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=To create the high strength and high ductility of Al–Mg-based aluminum alloy (JIS–ADC6), ADC6 samples were produced by the unidirectional continuous casting (HMC). The HMC process was conducted with direct water cooling to melt ADC6, which can make fine microstructures and control crystal orientation. The cast samples were prepared under various cooling rates (CRs): 6.3, 34, and 62 K/s. The microstructure and crystal orientation of the samples were altered with CR. At CRs of 34 K/s and 62 K/s, the α-Al phases and intermetallic compounds, e.g., Mg2Si and Al15(Fe, Mn)3Si2, became finer and more spherical. The secondary dendrite arm spacing for the sample at 62 K/s was 8.7 µm—more than 70% smaller than the ADC6 sample (ingot) made by a gravity casting process. Notably, at a CR of 34 K/s, the crystal orientation was predominantly arranged with the (101) plane. Tensile properties—ultimate tensile strength (σUTS), 0.2% proof stress (σ0.2), and failure strain (εf)—varied with the CR. The tensile strength (σUTS and σ0.2) consistently increased with increasing the CR. The improvement in the tensile strength resulted from the refined microstructures, such as the α-Al phase and intermetallic compounds. Similarly, the failure strain also increased with increasing CR, which was severely affected by the finer and more spherical intermetallic compounds. In this case, the εf value of the sample at 34 K/s was, however, slightly higher than that at 62 K/s, due to more uniformly organized crystal orientation, while their ductility was much higher than that of the gravity cast sample. The tensile properties in detail were further analyzed using their failure characteristics.
en-copyright=
kn-copyright=
en-aut-name=TakeuchiS.
en-aut-sei=Takeuchi
en-aut-mei=S.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=OkayasuM.
en-aut-sei=Okayasu
en-aut-mei=M.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
affil-num=1
en-affil=
kn-affil=
affil-num=2
en-affil=
kn-affil=
en-keyword=Al-Mg alloy
kn-keyword=Al-Mg alloy
en-keyword=heated mold continuous casting
kn-keyword=heated mold continuous casting
en-keyword=mechanical property
kn-keyword=mechanical property
en-keyword=microstructural characteristics
kn-keyword=microstructural characteristics
en-keyword=crystal orientation
kn-keyword=crystal orientation
en-keyword=fractography
kn-keyword=fractography
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=e06765
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250731
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Droplet Transportation on Janus Harp Wires for Enhanced Fog Harvesting
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Ensuring freshwater resources is a vital issue for human beings worldwide. Fog harvesting is one promising way to provide water from unconventional sources. However, clogging by the captured liquid depresses the fog harvesting performance. Here, a harp-shaped Janus harvesting system, which has thin wires with a superhydrophobic side facing the fog stream and a superhydrophilic back side to transport the droplets, is used to yield simultaneous fog capturing and water transport abilities. Attached droplets on the Janus wire transported along the periphery avoided clogging and enhanced the performance. The Janus system thus suppressed the increase and fluctuations of actual shade coefficients, which indicated blockage of the fog stream. This optimized the design of the harvester. Experiments using a multilayered Janus harvester demonstrated a significant enhancement compared with that constructed with mono-wettability wires. Overall, the results indicated the promise of droplet transportation on single wires for improving fog harvesting, as well as for other applications such as oil mist recovery and demulsification.
en-copyright=
kn-copyright=
en-aut-name=YamadaYutaka
en-aut-sei=Yamada
en-aut-mei=Yutaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=IshikawaTaku
en-aut-sei=Ishikawa
en-aut-mei=Taku
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=IsobeKazuma
en-aut-sei=Isobe
en-aut-mei=Kazuma
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=HoribeAkihiko
en-aut-sei=Horibe
en-aut-mei=Akihiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
affil-num=1
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=droplet transport
kn-keyword=droplet transport
en-keyword=fog harvesting
kn-keyword=fog harvesting
en-keyword=janus wire
kn-keyword=janus wire
en-keyword=wettability difference
kn-keyword=wettability difference
END
start-ver=1.4
cd-journal=joma
no-vol=122
cd-vols=
no-issue=32
article-no=
start-page=e2501933122
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250805
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Structural insights into a citrate transporter that mediates aluminum tolerance in barley
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=HvAACT1 is a major aluminum (Al)-tolerance gene in barley, encoding a citrate transporter that belongs to the multidrug and toxic compound extrusion (MATE) family. This transporter facilitates citrate secretion from the roots, thereby detoxifying external Al ions—a major constraint of crop production on acidic soils. In this study, we present the outward-facing crystal structure of HvAACT1, providing insights into a citrate transport mechanism. The putative citrate binding site consists of three basic residues—K126 in transmembrane helix 2 (TM2), R358 in TM7, and R535 in TM12—creating substantial positive charges in the C-lobe cavity. Proton coupling for substrate transport may involve two pairs of aspartate residues in the N-lobe cavity, one of which corresponds to the essential Asp pair found in prokaryotic H+-coupled MATE transporters belonging to the DinF subfamily. Structural coupling between proton uptake in the N-lobe and citrate extrusion in the C-lobe can be enabled by an extensive, unique hydrogen-bonding network at the extracellular half of the N-lobe. Mutation-based functional analysis, structural comparisons, molecular dynamics simulation, and phylogenic analysis suggest an evolutionary link between citrate MATE transporters and the DinF MATE subfamily. Our findings provide a solid structural basis for citrate transport by HvAACT1 in barley and contribute to a broader understanding of citrate transporter structures in other plant species.
en-copyright=
kn-copyright=
en-aut-name=Nguyen ThaoTran
en-aut-sei=Nguyen Thao
en-aut-mei=Tran
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=Mitani-UenoNamiki
en-aut-sei=Mitani-Ueno
en-aut-mei=Namiki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=UranoRyo
en-aut-sei=Urano
en-aut-mei=Ryo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=SaitohYasunori
en-aut-sei=Saitoh
en-aut-mei=Yasunori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=WangPeitong
en-aut-sei=Wang
en-aut-mei=Peitong
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=YamajiNaoki
en-aut-sei=Yamaji
en-aut-mei=Naoki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=ShenJian-Ren
en-aut-sei=Shen
en-aut-mei=Jian-Ren
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=ShinodaWataru
en-aut-sei=Shinoda
en-aut-mei=Wataru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=MaJian Feng
en-aut-sei=Ma
en-aut-mei=Jian Feng
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=SugaMichihiro
en-aut-sei=Suga
en-aut-mei=Michihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
affil-num=1
en-affil=Degree Program in Interdisciplinary Sciences, Graduate School of Environmental, Life, Natural Science, and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Research Core for Plant Stress Science, Institute of Plant Science and Resources, Okayama University
kn-affil=
affil-num=3
en-affil=Division of Superconducting and Functional Materials, Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
affil-num=4
en-affil=Degree Program in Interdisciplinary Sciences, Graduate School of Environmental, Life, Natural Science, and Technology, Okayama University
kn-affil=
affil-num=5
en-affil=Research Core for Plant Stress Science, Institute of Plant Science and Resources, Okayama University
kn-affil=
affil-num=6
en-affil=Research Core for Plant Stress Science, Institute of Plant Science and Resources, Okayama University
kn-affil=
affil-num=7
en-affil=Degree Program in Interdisciplinary Sciences, Graduate School of Environmental, Life, Natural Science, and Technology, Okayama University
kn-affil=
affil-num=8
en-affil=Degree Program in Interdisciplinary Sciences, Graduate School of Environmental, Life, Natural Science, and Technology, Okayama University
kn-affil=
affil-num=9
en-affil=Research Core for Plant Stress Science, Institute of Plant Science and Resources, Okayama University
kn-affil=
affil-num=10
en-affil=Degree Program in Interdisciplinary Sciences, Graduate School of Environmental, Life, Natural Science, and Technology, Okayama University
kn-affil=
en-keyword=barley
kn-keyword=barley
en-keyword=aluminum resistance
kn-keyword=aluminum resistance
en-keyword=membrane protein structure
kn-keyword=membrane protein structure
en-keyword=citrate transporter
kn-keyword=citrate transporter
en-keyword=MATE transporter
kn-keyword=MATE transporter
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250728
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Tailoring Mechanical Properties and Ionic Conductivity of Poly(ionic liquid)-Based Ion Gels by Tuning Anion Compositions
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Poly(ionic liquid) (PIL)-based ion gels have emerged as promising materials for advanced electrochemical applications because of their excellent miscibility with ionic liquids (IL), tunable mechanical properties, and high ionic conductivity. Despite extensive studies on PIL-based ion gels, a comprehensive understanding of how different anion combinations in the system affect physicochemical properties is lacking. In this study, we systematically investigate the effect of different anion species, such as bis(trifluoromethanesulfonyl)imide (TFSI) and hexafluorophosphate (PF6), on the mechanical, viscoelastic, and ion conductive behaviors of PIL-based ion gels. We investigate the interplay between anion size, packing density, and polymer segmental dynamics by varying the anion composition in both the PIL network and IL component. Rheological analysis and uniaxial tensile testing results indicate that PF6-containing ion gels exhibit enhanced higher Young’s modulus because of their restricted chain mobility resulting in higher glass transition temperature (Tg). In addition, we confirm the anion exchange between PIL and IL during gel preparation and find that the mechanical and ion conductive properties of the gels are governed by the total molar ratio of anions in the gels. Our findings highlight that tuning the anion composition in PIL-based ion gels provides an effective strategy to tailor their performance, with potential applications for flexible electronics and solid-state electrochemical devices.
en-copyright=
kn-copyright=
en-aut-name=WatanabeTakaichi
en-aut-sei=Watanabe
en-aut-mei=Takaichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=MizutaniYuna
en-aut-sei=Mizutani
en-aut-mei=Yuna
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=LopezCarlos G.
en-aut-sei=Lopez
en-aut-mei=Carlos G.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=OnoTsutomu
en-aut-sei=Ono
en-aut-mei=Tsutomu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
affil-num=1
en-affil=Department of Applied Chemistry, Graduate School of Environmental, Life, Natural Science, and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Department of Applied Chemistry, Graduate School of Environmental, Life, Natural Science, and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Material Science and Engineering Department, The Pennsylvania State University, 80 Pollock Road, State College
kn-affil=
affil-num=4
en-affil=Department of Applied Chemistry, Graduate School of Environmental, Life, Natural Science, and Technology, Okayama University
kn-affil=
en-keyword=poly(ionic liquid)
kn-keyword=poly(ionic liquid)
en-keyword=anion exchange
kn-keyword=anion exchange
en-keyword=gel
kn-keyword=gel
en-keyword=conductivity
kn-keyword=conductivity
en-keyword=toughness
kn-keyword=toughness
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202508
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Electrostatically‐Driven Collapse of Polyelectrolytes: The Role of the Solvent's Dielectric Constant
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We experimentally confirm a longstanding theoretical prediction of counterion-induced
polyelectrolyte collapse in low dielectric media. The scattering behavior of polystyrene sulfonate in different solvents with dielectric permittivities in the range of ε ≃ 12 − 180 is investigated. For high and intermediate ε media, typical polyelectrolyte behavior is observed: the correlation length (ξ) scales with concentration (c) as ξ ∼ c−1∕2, as predicted by various theories. When the dielectric constant of the solvent decreases below ≃ 22, a scaling of ξ ∼ c−1∕3, characteristic of partially collapsed polyelectrolytes, is observed. For these solvents, the correlation peak disappears at high concentrations. Interestingly, polyelectrolyte collapse is observed under both solvophilic and solvophobic conditions, supporting the existence of attractive electrostatic interactions. These results are in qualitative agreement with theoretical predictions which expect chain collapse in low dielectric media due to the influence of condensed counterions, either via dipolar attraction and/or charge-correlation-induced attractions.
en-copyright=
kn-copyright=
en-aut-name=GulatiAnish
en-aut-sei=Gulati
en-aut-mei=Anish
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=MengLingzi
en-aut-sei=Meng
en-aut-mei=Lingzi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=WatanabeTakaichi
en-aut-sei=Watanabe
en-aut-mei=Takaichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=LopezCarlos G.
en-aut-sei=Lopez
en-aut-mei=Carlos G.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
affil-num=1
en-affil=Institute of Physical Chemistry, RWTH Aachen University
kn-affil=
affil-num=2
en-affil=Materials Science and Engineering Department, The Pennsylvania State University, State College
kn-affil=
affil-num=3
en-affil=Department of Applied Chemistry, Graduate School of Environmental, Life, Natural Science, and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Materials Science and Engineering Department, The Pennsylvania State University, State College
kn-affil=
en-keyword=counterion
kn-keyword=counterion
en-keyword=dipole
kn-keyword=dipole
en-keyword=polyelectrolyte
kn-keyword=polyelectrolyte
en-keyword=SANS
kn-keyword=SANS
en-keyword=SAXS
kn-keyword=SAXS
en-keyword=scattering
kn-keyword=scattering
END
start-ver=1.4
cd-journal=joma
no-vol=106
cd-vols=
no-issue=7
article-no=
start-page=002112
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250725
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Summary of taxonomy changes ratified by the International Committee on Taxonomy of Viruses (ICTV) from the Animal dsRNA and ssRNA(−) Viruses Subcommittee, 2025
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=RNA viruses are ubiquitous in the environment and are important pathogens of humans, animals and plants. In 2024, the International Committee on Taxonomy of Viruses Animal dsRNA and ssRNA(−) Viruses Subcommittee submitted 18 taxonomic proposals for consideration. These proposals expanded the known virosphere by classifying 9 new genera and 88 species for newly detected virus genomes. Of note, newly established species expand the large family of Rhabdoviridae to 580 species. A new species in the family Arenaviridae includes a virus detected in Antarctic fish with a unique split nucleoprotein ORF. Additionally, four new species were established for historically isolated viruses with previously unsequenced genomes. Furthermore, three species were abolished due to incomplete genome sequence information, and one family was moved from being unassigned in the phylum Negarnaviricota into a subphylum and order. Herein, we summarize the 18 ratified taxonomic proposals and the general features of the current taxonomy, thereby supporting public and animal health responses.
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en-aut-name=HughesHolly R.
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affil-num=3
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kn-affil=
affil-num=4
en-affil=Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) and Instituto Nacional de Tecnología Agropecuaria (INTA)
kn-affil=
affil-num=5
en-affil=CSIRO Health and Biosecurity
kn-affil=
affil-num=6
en-affil=Center for Infection and Immunity, and Department of Epidemiology, Mailman School of Public Health, Columbia University
kn-affil=
affil-num=7
en-affil=Instituto Nacional de Enfermedades Virales Humanas Dr. Julio I. Maiztegui. INEVH -ANLIS
kn-affil=
affil-num=8
en-affil=Instituto Conmemorativo Gorgas de Estudios de la Salud
kn-affil=
affil-num=9
en-affil=Division of Clinical and Epidemiological Virology, KU Leuven
kn-affil=
affil-num=10
en-affil=Department of Microbiology, Immunology and Molecular Genetics, University of Kentucky
kn-affil=
affil-num=11
en-affil=Instituto Nacional de Tecnología Agropecuaria (INTA)
kn-affil=
affil-num=12
en-affil=QAAFI, The University of Queensland
kn-affil=
affil-num=13
en-affil=Robert Koch Institut
kn-affil=
affil-num=14
en-affil=Department of Virology, University of Helsinki
kn-affil=
affil-num=15
en-affil=Animal and Plant Health Agency (APHA)
kn-affil=
affil-num=16
en-affil=Department of Biological Sciences, University of Arkansas
kn-affil=
affil-num=17
en-affil=Embrapa Cassava and Fruits
kn-affil=
affil-num=18
en-affil=Instituto Nacional de Enfermedades Virales Humanas Dr. Julio I. Maiztegui. INEVH -ANLIS
kn-affil=
affil-num=19
en-affil=Department of Microbiology and Immunology, University of Otago
kn-affil=
affil-num=20
en-affil=Department of Microbiology and Immunology, University of Otago
kn-affil=
affil-num=21
en-affil=Osaka International Research Center for Infectious Diseases, Osaka Metropolitan University
kn-affil=
affil-num=22
en-affil=School of Veterinary Medicine, Murdoch University
kn-affil=
affil-num=23
en-affil=German Federal Institute for Risk Assessment
kn-affil=
affil-num=24
en-affil=Viral Special Pathogens Branch, The Centers for Disease Control and Prevention
kn-affil=
affil-num=25
en-affil=Institute of Plant Science and Resources, Okayama University
kn-affil=
affil-num=26
en-affil=Computational Biology Branch, Division of Intramural Research National Library of Medicine, National Institutes of Health
kn-affil=
affil-num=27
en-affil=University of Ostrava
kn-affil=
affil-num=28
en-affil=Institut Pasteur, Université Paris Cité, CNRS UMR6047, Archaeal Virology Unit
kn-affil=
affil-num=29
en-affil=Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health
kn-affil=
affil-num=30
en-affil=Paul G. Allen School for Global Health, Washington State University
kn-affil=
affil-num=31
en-affil=Institute of Plant Virology, Ningbo University
kn-affil=
affil-num=32
en-affil=National Genomics Data Center, China National Center for Bioinformation; Beijing Institute of Genomics, Chinese Academy of Sciences; University of Chinese Academy of Sciences
kn-affil=
affil-num=33
en-affil=Instituto Nacional de Enfermedades Virales Humanas Dr. Julio I. Maiztegui. INEVH -ANLIS
kn-affil=
affil-num=34
en-affil=Department of Natural Sciences, Shawnee State University
kn-affil=
affil-num=35
en-affil=Instituto Nacional de Enfermedades Virales Humanas Dr. Julio I. Maiztegui. INEVH -ANLIS
kn-affil=
affil-num=36
en-affil=College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai Health
kn-affil=
affil-num=37
en-affil=Universidade Federal do Pará
kn-affil=
affil-num=38
en-affil=Pharmaq Analytiq
kn-affil=
affil-num=39
en-affil=Institute of Diagnostic Virology, Friedrich-Loeffler-Institut
kn-affil=
affil-num=40
en-affil=Centers for Disease Control and Prevention
kn-affil=
affil-num=41
en-affil=Institute of Marine and Environmental Technology, University of Maryland Center for Environmental Science
kn-affil=
affil-num=42
en-affil=Paul G. Allen School for Global Health, Washington State University
kn-affil=
affil-num=43
en-affil=Instituto Nacional de Enfermedades Virales Humanas Dr. Julio I. Maiztegui. INEVH -ANLIS
kn-affil=
affil-num=44
en-affil=Viral Special Pathogens Branch, The Centers for Disease Control and Prevention
kn-affil=
affil-num=45
en-affil=Department of Virology, University of Helsinki
kn-affil=
affil-num=46
en-affil=Department of Virology, University of Helsinki
kn-affil=
affil-num=47
en-affil=Integrated Group of Aquaculture and Environmental Studies, Federal University of Paraná
kn-affil=
affil-num=48
en-affil=Department of Pathology, The University of Texas Medical Branch
kn-affil=
affil-num=49
en-affil=Department of Microbiology and Immunology, Indiana University School of Medicine
kn-affil=
affil-num=50
en-affil=Institut Pasteur
kn-affil=
affil-num=51
en-affil=Department of Pathology, The University of Texas Medical Branch
kn-affil=
affil-num=52
en-affil=University of Queensland
kn-affil=
affil-num=53
en-affil=Wuhan Institute of Virology, Chinese Academy of Sciences
kn-affil=
affil-num=54
en-affil=North Carolina State University
kn-affil=
affil-num=55
en-affil=Viral Special Pathogens Branch, The Centers for Disease Control and Prevention
kn-affil=
affil-num=56
en-affil=Computational Biology Branch, Division of Intramural Research National Library of Medicine, National Institutes of Health
kn-affil=
affil-num=57
en-affil=Wuhan Institute of Virology, Chinese Academy of Sciences
kn-affil=
affil-num=58
en-affil=Institute of Insect Sciences, Zhejiang University
kn-affil=
affil-num=59
en-affil=Institute of Plant Virology, Ningbo University
kn-affil=
affil-num=60
en-affil=University of Ostrava
kn-affil=
affil-num=61
en-affil=Department of Pathobiology and Population Sciences, Royal Veterinary College
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=106
cd-vols=
no-issue=7
article-no=
start-page=002114
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250725
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Summary of taxonomy changes ratified by the International Committee on Taxonomy of Viruses from the Plant Viruses Subcommittee, 2025
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In March 2025, following the annual International Committee on Taxonomy of Viruses (ICTV) ratification vote, newly proposed taxa were added to those under the mandate of the Plant Viruses Subcommittee. In brief, 1 new order, 3 new families, 6 new genera, 2 new subgenera and 206 new species were created. Some taxa were reorganized. Genus Cytorhabdovirus in the family Rhabdoviridae was abolished and its taxa were redistributed into three new genera Alphacytorhabdovirus, Betacytorhabdovirus and Gammacytorhabdovirus. Genus Waikavirus in the family Secoviridae was reorganized into two subgenera (Actinidivirus and Ritunrivirus). One family and four previously unaffiliated genera were moved to the newly established order Tombendovirales. Twelve species not assigned to a genus were abolished. To comply with the ICTV mandate of a binomial format for virus species, eight species were renamed. Demarcation criteria in the absence of biological information were defined in the genus Ilarvirus (family Bromoviridae). This article presents the updated taxonomy put forth by the Plant Viruses Subcommittee and ratified by the ICTV.
en-copyright=
kn-copyright=
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ORCID=
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en-aut-mei=Peter
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aut-affil-num=2
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ORCID=
en-aut-name=WylieStephen J.
en-aut-sei=Wylie
en-aut-mei=Stephen J.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=105
ORCID=
en-aut-name=YangCaixia
en-aut-sei=Yang
en-aut-mei=Caixia
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=106
ORCID=
en-aut-name=ZerbiniF. Murilo
en-aut-sei=Zerbini
en-aut-mei=F. Murilo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=107
ORCID=
en-aut-name=ZhangSong
en-aut-sei=Zhang
en-aut-mei=Song
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=108
ORCID=
affil-num=1
en-affil=Istituto per la Protezione Sostenibile delle Piante, CNR
kn-affil=
affil-num=2
en-affil=USDA-ARS, BARC, National Germplasm Resources Laboratory
kn-affil=
affil-num=3
en-affil=Liaoning Key Laboratory of Urban Integrated Pest Management and Ecological Security, Shenyang University
kn-affil=
affil-num=4
en-affil=Centro de Edafología y Biología Aplicada del Segura-CSIC
kn-affil=
affil-num=5
en-affil=Department of Molecular and Structural Biochemistry, North Carolina State University
kn-affil=
affil-num=6
en-affil=Unidad de Fitopatología y Modelización Agrícola (UFYMA) INTA-CONICET
kn-affil=
affil-num=7
en-affil=Plant Protection Department
kn-affil=
affil-num=8
en-affil=UMR 1332 Biologie du Fruit et Pathologie, University of Bordeaux, INRAE
kn-affil=
affil-num=9
en-affil=Margarita Salas Center for Biological Research (CIB-CSIC) Spanish Council for Scientific Research (CSIC)
kn-affil=
affil-num=10
en-affil=National Citrus Engineering and Technology Research Center, Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Citrus Research Institute, Southwest University
kn-affil=
affil-num=11
en-affil=Department of Plant Sciences, University of Cambridge
kn-affil=
affil-num=12
en-affil=Agriculture and Life Sciences Research Institute, Kangwon National University
kn-affil=
affil-num=13
en-affil=Agriculture Victoria Research, Department of Energy, Environment and Climate Action and School of Applied Systems Biology, La Trobe University
kn-affil=
affil-num=14
en-affil=University of Delhi South Campu
kn-affil=
affil-num=15
en-affil=Unidad de Fitopatología y Modelización Agrícola (UFYMA) INTA-CONICET
kn-affil=
affil-num=16
en-affil=Queensland Alliance for Agriculture and Food Innovation, The University of Queensland
kn-affil=
affil-num=17
en-affil=CIHEAM, Istituto Agronomico Mediterraneo of Bari
kn-affil=
affil-num=18
en-affil=Centro de Edafología y Biología Aplicada del Segura-CSIC
kn-affil=
affil-num=19
en-affil=CIHEAM, Istituto Agronomico Mediterraneo of Bari
kn-affil=
affil-num=20
en-affil=Virus South Data
kn-affil=
affil-num=21
en-affil=Queensland Department of Primary Industries
kn-affil=
affil-num=22
en-affil=Max Planck Institute for Marine Microbiology
kn-affil=
affil-num=23
en-affil=Plant Protection Department
kn-affil=
affil-num=24
en-affil=Fera Science Ltd (Fera), York Biotech Campus
kn-affil=
affil-num=25
en-affil=Embrapa Cassava and Fruits, Brazilian Agricultural Research Corporation
kn-affil=
affil-num=26
en-affil=Plant Pathology, Cornell University
kn-affil=
affil-num=27
en-affil=Queensland Alliance for Agriculture and Food Innovation, The University of Queensland
kn-affil=
affil-num=28
en-affil=Department of Biology, University of Oxford
kn-affil=
affil-num=29
en-affil=Swedish University of Agriculture
kn-affil=
affil-num=30
en-affil=USDA-ARS, USNA, Floral and Nursery Plants Research Unit
kn-affil=
affil-num=31
en-affil=USDA-ARS, BARC, Molecular Plant Pathology Laboratory
kn-affil=
affil-num=32
en-affil=Institute of Plant Protection-NRI
kn-affil=
affil-num=33
en-affil=PHIM Plant Health Institute, University of Montpellier, INRAE, CIRAD, IRD, Institute Agro
kn-affil=
affil-num=34
en-affil=Instituto de Biología Molecular y Celular de Plantas (IBMCP), Universitat Politècnica de Valencia-CSIC
kn-affil=
affil-num=35
en-affil=Institut Français de la Vigne et du Vin
kn-affil=
affil-num=36
en-affil=Vali-e-Asr University of Rafsanjan, Department of Plant Protection
kn-affil=
affil-num=37
en-affil=Retired from John Innes Centre
kn-affil=
affil-num=38
en-affil=Embrapa Hortaliças
kn-affil=
affil-num=39
en-affil=USDA-ARS, USNA, Floral and Nursery Plants Research Unit
kn-affil=
affil-num=40
en-affil=Institute of Plant Science and Resources, Okayama University
kn-affil=
affil-num=41
en-affil=International Potato Center (CIP)
kn-affil=
affil-num=42
en-affil=Institut Pasteur, Université Paris Cité, CNRS UMR6047, Archaeal Virology Unit
kn-affil=
affil-num=43
en-affil=Institute for Plant Protection, NARO
kn-affil=
affil-num=44
en-affil=Integrated Research Facility at Fort Detrick, National Institute of Allergy and Infectious Diseases, National Institutes of Health
kn-affil=
affil-num=45
en-affil=Department of Biological Sciences, University of Toledo
kn-affil=
affil-num=46
en-affil=CIRAD, UMR PVBMT
kn-affil=
affil-num=47
en-affil=Liaoning Key Laboratory of Urban Integrated Pest Management and Ecological Security, Shenyang University
kn-affil=
affil-num=48
en-affil=State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University
kn-affil=
affil-num=49
en-affil=Institute of Plant Virology, Ningbo University
kn-affil=
affil-num=50
en-affil=Instituto de Patología Vegetal (IPAVE), INTA, Unidad de Fitopatología y Modelización Agrícola (UFYMA) INTA-CONICET
kn-affil=
affil-num=51
en-affil=Centre for Research in Agricultural Genomics, CRAG (CSIC-IRTA-UAB-UB)
kn-affil=
affil-num=52
en-affil=UMR 1332 Biologie du Fruit et Pathologie, University of Bordeaux, INRAE
kn-affil=
affil-num=53
en-affil=Department of Agricultural Sciences, University of Helsinki
kn-affil=
affil-num=54
en-affil=Institute of Infectious Disease and Molecular Medicine, University of Cape Town
kn-affil=
affil-num=55
en-affil=Plant Pathology Laboratory, TERRA Gembloux Agro-Bio Tech, University of Liege
kn-affil=
affil-num=56
en-affil=Department of Plant Pathology, Entomology and Microbiology, Iowa State University
kn-affil=
affil-num=57
en-affil=Department of Plant Protection, Gorgan University of Agricultural Sciences and Natural Resources
kn-affil=
affil-num=58
en-affil=USDA-APHIS, Plant Protection and Quarantine
kn-affil=
affil-num=59
en-affil=CIRAD, AGAP Institut; AGAP Institut, University of Montpellier; CIRAD, INRAE
kn-affil=
affil-num=60
en-affil=Instituto de Ciências Biológicas, Universidade de Brasília
kn-affil=
affil-num=61
en-affil=Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora” (IHSM-UMA-CSIC), Consejo Superior de Investigaciones Científicas
kn-affil=
affil-num=62
en-affil=Utsunomiya University
kn-affil=
affil-num=63
en-affil=Oklahoma State University, Institute for Biosecurity & Microbial Forensics
kn-affil=
affil-num=64
en-affil=Saga University
kn-affil=
affil-num=65
en-affil=Instituto de Biología Molecular y Celular de Plantas (IBMCP), Universitat Politècnica de Valencia-CSIC
kn-affil=
affil-num=66
en-affil=Department of Plant Pathology, Washington State University
kn-affil=
affil-num=67
en-affil=Institute of Plant Molecular Biology
kn-affil=
affil-num=68
en-affil=PHIM Plant Health Institute, University of Montpellier, INRAE, CIRAD, IRD
kn-affil=
affil-num=69
en-affil=Istituto per la Protezione Sostenibile delle Piante, CNR
kn-affil=
affil-num=70
en-affil=Applied Molecular Biology Laboratory, Instituto Biológico de São Paulo
kn-affil=
affil-num=71
en-affil=Embrapa Recursos Genéticos e Biotecnologia
kn-affil=
affil-num=72
en-affil=Julius Kühn Institute, Federal Research Centre for Cultivated Plants, Institute for Epidemiology and Pathogen Diagnostics
kn-affil=
affil-num=73
en-affil=CIRAD, UMR PHIM
kn-affil=
affil-num=74
en-affil=USDA-ARS, BARC, Molecular Plant Pathology Laboratory, Beltsville, MD, USA
kn-affil=
affil-num=75
en-affil=Department of Agricultural Science and Plant Protection, Mississippi State University
kn-affil=
affil-num=76
en-affil=Department of Cell Biology and Genetics, Faculty of Science, Palacký University Olomouc
kn-affil=
affil-num=77
en-affil=Istituto per la Protezione Sostenibile delle Piante, CNR
kn-affil=
affil-num=78
en-affil=Summerland Research and Development Centre, Agriculture and Agri-Food Canada
kn-affil=
affil-num=79
en-affil=Department of Chemistry and Biotechnology, Tallinn University of Technology
kn-affil=
affil-num=80
en-affil=Strategic Planning Headquarters, NARO
kn-affil=
affil-num=81
en-affil=Department of Plant Pathology, Ecology and Evolution, Oklahoma State University
kn-affil=
affil-num=82
en-affil=Molecular Plant Pathology, University of Amsterdam
kn-affil=
affil-num=83
en-affil=Natural Resources Institute, University of Greenwich
kn-affil=
affil-num=84
en-affil=Kochi Agricultural Research Center
kn-affil=
affil-num=85
en-affil=Department of Chemistry and Biotechnology, Tallinn University of Technology
kn-affil=
affil-num=86
en-affil=Istituto per la Protezione Sostenibile delle Piante, CNR
kn-affil=
affil-num=87
en-affil=Currently unaffiliated
kn-affil=
affil-num=88
en-affil=CIRAD, UMR PVBMT & UMR PVBMT, Université de la Réunion
kn-affil=
affil-num=89
en-affil=Queensland Alliance for Agriculture and Food Innovation, The University of Queensland
kn-affil=
affil-num=90
en-affil=Plant Health and Environment Laboratory
kn-affil=
affil-num=91
en-affil=Council for Agricultural Research and Economics, Research Centre for Plant Protection and Certification
kn-affil=
affil-num=92
en-affil=Institute for Plant Protection, NARO
kn-affil=
affil-num=93
en-affil=Department of Entomology and Plant Pathology, Division of Agriculture, University of Arkansas System
kn-affil=
affil-num=94
en-affil=INRAE, UR ASTRO
kn-affil=
affil-num=95
en-affil=PHIM Plant Health Institute, University of Montpellier, INRAE, CIRAD, IRD, Institute Agro
kn-affil=
affil-num=96
en-affil=Molecular Plant Pathology, University of Amsterdam
kn-affil=
affil-num=97
en-affil=Wageningen University and Research
kn-affil=
affil-num=98
en-affil=The Biodesign Center for Fundamental and Applied Microbiomics, Center for Evolution and Medicine, School of Life Sciences, Arizona State University
kn-affil=
affil-num=99
en-affil=Rijk Zwaan Breeding B.V.
kn-affil=
affil-num=100
en-affil=Department of Entomology and Plant Pathology, Division of Agriculture, University of Arkansas System
kn-affil=
affil-num=101
en-affil=Humboldt-Universität zu Berlin, Thaer-Institute of Agricultural and Horticultural Sciences
kn-affil=
affil-num=102
en-affil=The University of Queensland
kn-affil=
affil-num=103
en-affil=Dienstleistungszentrum Ländlicher Raum Rheinpfalz
kn-affil=
affil-num=104
en-affil=North Carolina State University
kn-affil=
affil-num=105
en-affil=Food Futures Institute, Murdoch University
kn-affil=
affil-num=106
en-affil=Liaoning Key Laboratory of Urban Integrated Pest Management and Ecological Security, Shenyang University
kn-affil=
affil-num=107
en-affil=Dep. de Fitopatologia/BIOAGRO, Universidade Federal de Viçosa
kn-affil=
affil-num=108
en-affil=National Citrus Engineering and Technology Research Center, Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Citrus Research Institute, Southwest University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=67
cd-vols=
no-issue=1
article-no=
start-page=e70040
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250514
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Avoidant/restrictive food intake disorder prognosis and its relation with autism spectrum disorder in Japanese children
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Background: There is a lack of reported clinical factors associated with the outcomes of children and adolescents with avoidant/restrictive food intake disorder (ARFID) in Japan. This study aimed to identify these clinical factors and explore the relationship between ARFID and autism spectrum disorder (ASD).
Methods: This retrospective study analyzed data from 48 Japanese children and adolescents with ARFID who visited Okayama University Hospital between January 2011 and March 2022. Clinical characteristics were assessed using medical records and natural history questionnaires. The study compared patients with good and poor prognosis groups and used multiple logistic regression analysis to determine factors influencing prognosis.
Results: The study included 33 patients with good prognoses and 15 with poor prognoses. Comorbid ASD was more prevalent in the poor prognosis group (60%) compared to the good prognosis group (21%). Additionally, more than half of the ARFID patients with comorbid ASD were initially undiagnosed. Multivariate analysis revealed that older age at first visit (p = 0.022) and comorbid ASD (p = 0.022) were statistically significant factors associated with poor prognosis in ARFID patients. There were no significant differences in body mass index standard deviation score and maximal weight loss between the two groups.
Conclusions: The poor prognosis group had a higher prevalence of comorbid ASD diagnoses. Therefore, it is crucial to evaluate patient's developmental characteristics early in treatment and consider these characteristics throughout the course of care.
en-copyright=
kn-copyright=
en-aut-name=TanakaChie
en-aut-sei=Tanaka
en-aut-mei=Chie
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=OkadaAyumi
en-aut-sei=Okada
en-aut-mei=Ayumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=HanzawaMana
en-aut-sei=Hanzawa
en-aut-mei=Mana
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=FujiiChikako
en-aut-sei=Fujii
en-aut-mei=Chikako
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=ShigeyasuYoshie
en-aut-sei=Shigeyasu
en-aut-mei=Yoshie
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=SugiharaAkiko
en-aut-sei=Sugihara
en-aut-mei=Akiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=HoriuchiMakiko
en-aut-sei=Horiuchi
en-aut-mei=Makiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=YorifujiTakashi
en-aut-sei=Yorifuji
en-aut-mei=Takashi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=TsukaharaHirokazu
en-aut-sei=Tsukahara
en-aut-mei=Hirokazu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
affil-num=1
en-affil=Department of Pediatrics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=2
en-affil=Department of Pediatrics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=3
en-affil=Department of Pediatrics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=4
en-affil=Department of Pediatrics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=5
en-affil=Department of Pediatrics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=6
en-affil=Department of Pediatrics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=7
en-affil=Clinical Psychology Section, Department of Medical Support, Okayama University Hospital
kn-affil=
affil-num=8
en-affil=Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=9
en-affil=Department of Pediatrics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
en-keyword=autism spectrum disorder
kn-keyword=autism spectrum disorder
en-keyword=avoidant/restrictive food intake disorder
kn-keyword=avoidant/restrictive food intake disorder
en-keyword=children
kn-keyword=children
en-keyword=feeding and eating disorders
kn-keyword=feeding and eating disorders
en-keyword=outcome
kn-keyword=outcome
END
start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=15
article-no=
start-page=7275
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250728
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Acquired Radioresistance Through Adaptive Evolution with Gamma Radiation as Selection Pressure: Increased Expression and Induction of Anti-Stress Genes
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Elucidating the mechanisms of radioresistance in highly radiotolerant organisms can provide valuable insights into the adaptation and evolution of organisms. However, research has been limited on many naturally occurring radioresistant organisms due to a lack of information regarding their genetic and biochemical characteristics and the difficulty of handling them experimentally. To address this, we conducted an experiment on adaptive evolution using gamma radiation as the selection pressure to generate evolved Escherichia coli with gamma radiation resistance approximately one order of magnitude greater than that of wild-type E. coli. Gene expressions in all wild-type and evolved radioresistant E. coli in the presence or absence of gamma irradiation were analyzed and compared using RNA sequencing. Under steady-state conditions, the genes involved in survival, cell recovery, DNA repair, and response following stress exposure were upregulated in evolved E. coli compared with those in wild-type E. coli. Furthermore, the evolved E. coli induced these genes more efficiently following gamma irradiation and greater DNA repair activity than that in the wild-type E. coli. Our results indicate that an increased steady-state expression of various anti-stress genes, including DNA repair-related genes, and their highly efficient induction under irradiation are responsible for the remarkable radioresistance of evolved E. coli.
en-copyright=
kn-copyright=
en-aut-name=SaitoTakeshi
en-aut-sei=Saito
en-aut-mei=Takeshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=TeratoHiroaki
en-aut-sei=Terato
en-aut-mei=Hiroaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
affil-num=1
en-affil=Division of Radiation Life Science, Institute for Integrated Radiation and Nuclear Science, Kyoto University
kn-affil=
affil-num=2
en-affil=Department of Radiation Research, Advanced Science Research Center, Okayama University
kn-affil=
en-keyword=radioresistant bacteria
kn-keyword=radioresistant bacteria
en-keyword=Escherichia coli
kn-keyword=Escherichia coli
en-keyword=adaptive evolution
kn-keyword=adaptive evolution
en-keyword=gene expression changes
kn-keyword=gene expression changes
en-keyword=anti-stress genes
kn-keyword=anti-stress genes
en-keyword=DNA repair
kn-keyword=DNA repair
en-keyword=cell recovery
kn-keyword=cell recovery
END
start-ver=1.4
cd-journal=joma
no-vol=36
cd-vols=
no-issue=5
article-no=
start-page=686
end-page=689
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202509
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=L or M1—Critical Challenges in Mediation Analysis
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Methods for causal mediation analysis have developed dramatically over the past few decades.1–7 In the causal mediation literature, several causal quantities—or estimands—have been proposed, including natural direct and indirect effects, interventional direct and indirect effects, and separable direct and indirect effects. As another possible causal estimand, Chen and Lin8 proposed separable path-specific effects, which is an extension of the separable effects framework to cases that involve multiple ordered mediators. In this commentary, I briefly discuss the newly proposed method from a broader perspective on causal mediation analysis. For readers less familiar with common causal mediation approaches, please see related literature.1–3,9–11
en-copyright=
kn-copyright=
en-aut-name=SuzukiEtsuji
en-aut-sei=Suzuki
en-aut-mei=Etsuji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
affil-num=1
en-affil=Department of Epidemiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=104
cd-vols=
no-issue=3
article-no=
start-page=104810
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202503
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=An ultra-simplified protocol for PCR template preparation from both unsporulated and sporulated Eimeria oocysts
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Molecular biological techniques have enabled the accurate identification of the avian Eimeria parasite, however, the preparation of PCR template remains a bottleneck due to contaminants from feces and the robust oocyst's wall resistant to chemical and mechanical force. Generally, the preparation of PCR template involves three main steps: (1) pretreatment of oocysts; (2) disruption of oocysts; and (3) purification of genomic DNA. We prepared PCR templates from both unsporulated and sporulated E. tenella oocysts using various protocols, followed by species-specific PCR to define the limit of detection. Our data revealed that whereas neither pretreatment of oocysts with sodium hypochlorite nor purification of genomic DNA with commercial kits improved the limit of detection of PCR, disruption of oocysts was a critical step in the preparation of PCR templates. The most sensitive PCR assay was achieved with the template prepared by disrupting oocysts suspended in distilled water, followed by bead-beating and heating at 99°C for 5 min, which detected 0.16 oocysts per PCR. This ultra-simplified protocol for preparation of PCR template, which does not require expensive reagents or equipment, will significantly enhance the sensitive and efficient molecular identification of Eimeria. It will improve our understanding of the prevalence of this parasite at the species level and contribute to the development of techniques for the control in the field.
en-copyright=
kn-copyright=
en-aut-name=TakanoAruto
en-aut-sei=Takano
en-aut-mei=Aruto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=UmaliDennis V.
en-aut-sei=Umali
en-aut-mei=Dennis V.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=WardhanaApril H.
en-aut-sei=Wardhana
en-aut-mei=April H.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=SawitriDyah H.
en-aut-sei=Sawitri
en-aut-mei=Dyah H.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=TeramotoIsao
en-aut-sei=Teramoto
en-aut-mei=Isao
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=HatabuToshimitsu
en-aut-sei=Hatabu
en-aut-mei=Toshimitsu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=KidoYasutoshi
en-aut-sei=Kido
en-aut-mei=Yasutoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=KanekoAkira
en-aut-sei=Kaneko
en-aut-mei=Akira
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=SasaiKazumi
en-aut-sei=Sasai
en-aut-mei=Kazumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=KatohHiromitsu
en-aut-sei=Katoh
en-aut-mei=Hiromitsu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
en-aut-name=MatsubayashiMakoto
en-aut-sei=Matsubayashi
en-aut-mei=Makoto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=11
ORCID=
affil-num=1
en-affil=Departments of Veterinary Immunology, Graduate School of Veterinary Medical Sciences, Osaka Metropolitan University
kn-affil=
affil-num=2
en-affil=Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of the Philippines Los Baños, College
kn-affil=
affil-num=3
en-affil=Research Center for Veterinary Science, National Research and Innovation Agency
kn-affil=
affil-num=4
en-affil=Research Center for Veterinary Science, National Research and Innovation Agency
kn-affil=
affil-num=5
en-affil=Departments of Virology and Parasitology, Graduate School of Medicine, Osaka Metropolitan University
kn-affil=
affil-num=6
en-affil=Laboratory of Animal Physiology, Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=7
en-affil=Departments of Virology and Parasitology, Graduate School of Medicine, Osaka Metropolitan University
kn-affil=
affil-num=8
en-affil=Departments of Virology and Parasitology, Graduate School of Medicine, Osaka Metropolitan University
kn-affil=
affil-num=9
en-affil=Departments of Veterinary Immunology, Graduate School of Veterinary Medical Sciences, Osaka Metropolitan University
kn-affil=
affil-num=10
en-affil=Departments of Veterinary Immunology, Graduate School of Veterinary Medical Sciences, Osaka Metropolitan University
kn-affil=
affil-num=11
en-affil=Departments of Veterinary Immunology, Graduate School of Veterinary Medical Sciences, Osaka Metropolitan University
kn-affil=
en-keyword=Coccidian parasite
kn-keyword=Coccidian parasite
en-keyword=Eimeria tenella
kn-keyword=Eimeria tenella
en-keyword=Extraction
kn-keyword=Extraction
en-keyword=Molecular identification
kn-keyword=Molecular identification
en-keyword=Oocyst
kn-keyword=Oocyst
END
start-ver=1.4
cd-journal=joma
no-vol=14
cd-vols=
no-issue=10
article-no=
start-page=2401783
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20241010
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Biocompatibility of Water-Dispersible Pristine Graphene and Graphene Oxide Using a Close-to-Human Animal Model: A Pilot Study on Swine
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Graphene-based materials (GBMs) are of considerable interest for biomedical applications, and the pilot study on the toxicological and immunological impact of pristine graphene (GR) and graphene oxide (GO) using swine as a close-to-human provides valuable insights. First, ex vivo experiments are conducted on swine blood cells, then GBMs are injected intraperitoneally (i.p.) into swine. Hematological and biochemical analyses at various intervals indicate that neither GO nor GR cause systemic inflammation, pro-coagulant responses, or renal or hepatic dysfunction. Importantly, no systemic toxicity is observed. Analysis of a panel of 84 immune-related genes shows minimal impact of GO and GR. The animals are sacrificed 21 days post-injection, and transient absorption imaging and Raman mapping show the presence of GO and GR in the mesentery only. Histological evaluation reveals no signs of alterations in other organs. Thus, clusters of both materials are detected in the mesentery, and GO aggregates are surrounded only by macrophages with the formation of granulomas. In contrast, modest local reactions are observed around the GR clusters. Overall, these results reveal that i.p. injection of GBMs resulted in a modest local tissue reaction without systemic toxicity. This study, performed in swine, provides essential guidance for future biomedical applications of graphene.
en-copyright=
kn-copyright=
en-aut-name=NicolussiPaola
en-aut-sei=Nicolussi
en-aut-mei=Paola
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=PiloGiovannantonio
en-aut-sei=Pilo
en-aut-mei=Giovannantonio
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=CanceddaMaria Giovanna
en-aut-sei=Cancedda
en-aut-mei=Maria Giovanna
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=PengGuotao
en-aut-sei=Peng
en-aut-mei=Guotao
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=ChauNgoc Do Quyen
en-aut-sei=Chau
en-aut-mei=Ngoc Do Quyen
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=De la CadenaAlejandro
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en-aut-mei=Alejandro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
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en-aut-mei=Renzo
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kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=SamadYarjan Abdul
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en-aut-mei=Yarjan Abdul
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=AhmedTanweer
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kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=MarcellinoJeremia
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en-aut-mei=Jeremia
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
en-aut-name=TeddeGiuseppe
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kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=11
ORCID=
en-aut-name=GiroLinda
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kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=12
ORCID=
en-aut-name=YlmazerAcelya
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kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=13
ORCID=
en-aut-name=LoiFederica
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en-aut-mei=Federica
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=14
ORCID=
en-aut-name=CartaGavina
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en-aut-mei=Gavina
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=15
ORCID=
en-aut-name=SecchiLoredana
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en-aut-mei=Loredana
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=16
ORCID=
en-aut-name=Dei GiudiciSilvia
en-aut-sei=Dei Giudici
en-aut-mei=Silvia
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=17
ORCID=
en-aut-name=MacciocuSimona
en-aut-sei=Macciocu
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kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=18
ORCID=
en-aut-name=PolliDario
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en-aut-mei=Dario
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kn-aut-sei=
kn-aut-mei=
aut-affil-num=19
ORCID=
en-aut-name=NishinaYuta
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en-aut-mei=Yuta
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kn-aut-sei=
kn-aut-mei=
aut-affil-num=20
ORCID=
en-aut-name=LigiosCiriaco
en-aut-sei=Ligios
en-aut-mei=Ciriaco
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=21
ORCID=
en-aut-name=CerulloGiulio
en-aut-sei=Cerullo
en-aut-mei=Giulio
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=22
ORCID=
en-aut-name=FerrariAndrea
en-aut-sei=Ferrari
en-aut-mei=Andrea
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=23
ORCID=
en-aut-name=BiancoAlberto
en-aut-sei=Bianco
en-aut-mei=Alberto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=24
ORCID=
en-aut-name=FadeelBengt
en-aut-sei=Fadeel
en-aut-mei=Bengt
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=25
ORCID=
en-aut-name=FranzoniGiulia
en-aut-sei=Franzoni
en-aut-mei=Giulia
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=26
ORCID=
en-aut-name=DeloguLucia Gemma
en-aut-sei=Delogu
en-aut-mei=Lucia Gemma
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=27
ORCID=
affil-num=1
en-affil=Istituto Zooprofilattico Sperimentale della Sardegna
kn-affil=
affil-num=2
en-affil=Istituto Zooprofilattico Sperimentale della Sardegna
kn-affil=
affil-num=3
en-affil=Istituto Zooprofilattico Sperimentale della Sardegna
kn-affil=
affil-num=4
en-affil=Institute of Environmental Medicine, Karolinska Institutet
kn-affil=
affil-num=5
en-affil=CNRS, Immunology, Immunopathology and Therapeutic Chemistry
kn-affil=
affil-num=6
en-affil=Dipartimento di Fisica, Politecnico di Milano
kn-affil=
affil-num=7
en-affil=Istituto di Fotonica e Nanotecnologie – CNR
kn-affil=
affil-num=8
en-affil=Cambridge Graphene Centre, University of Cambridge
kn-affil=
affil-num=9
en-affil=Cambridge Graphene Centre, University of Cambridge
kn-affil=
affil-num=10
en-affil=Cambridge Graphene Centre, University of Cambridge
kn-affil=
affil-num=11
en-affil=Istituto Zooprofilattico Sperimentale della Sardegna
kn-affil=
affil-num=12
en-affil=ImmuneNano Laboratory, Department of Biomedical Sciences
kn-affil=
affil-num=13
en-affil=Department of Biomedical Engineering, Ankara University
kn-affil=
affil-num=14
en-affil=Istituto Zooprofilattico Sperimentale della Sardegna
kn-affil=
affil-num=15
en-affil=Istituto Zooprofilattico Sperimentale della Sardegna
kn-affil=
affil-num=16
en-affil=Istituto Zooprofilattico Sperimentale della Sardegna
kn-affil=
affil-num=17
en-affil=Istituto Zooprofilattico Sperimentale della Sardegna
kn-affil=
affil-num=18
en-affil=Istituto Zooprofilattico Sperimentale della Sardegna
kn-affil=
affil-num=19
en-affil=Dipartimento di Fisica, Politecnico di Milano
kn-affil=
affil-num=20
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=21
en-affil=Istituto Zooprofilattico Sperimentale della Sardegna
kn-affil=
affil-num=22
en-affil=Dipartimento di Fisica, Politecnico di Milano
kn-affil=
affil-num=23
en-affil=Cambridge Graphene Centre, University of Cambridge
kn-affil=
affil-num=24
en-affil=CNRS, Immunology, Immunopathology and Therapeutic Chemistry
kn-affil=
affil-num=25
en-affil=Institute of Environmental Medicine, Karolinska Institutet
kn-affil=
affil-num=26
en-affil=Istituto Zooprofilattico Sperimentale della Sardegna
kn-affil=
affil-num=27
en-affil=ImmuneNano Laboratory, Department of Biomedical Sciences
kn-affil=
en-keyword=2D materials
kn-keyword=2D materials
en-keyword=biocompatibility
kn-keyword=biocompatibility
en-keyword=immune system
kn-keyword=immune system
en-keyword=porcine model
kn-keyword=porcine model
en-keyword=toxicity
kn-keyword=toxicity
END
start-ver=1.4
cd-journal=joma
no-vol=4
cd-vols=
no-issue=4
article-no=
start-page=263
end-page=272
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20240607
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Light-Responsive and Antibacterial Graphenic Materials as a Holistic Approach to Tissue Engineering
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=While the continuous development of advanced bioprinting technologies is under fervent study, enhancing the regenerative potential of hydrogel-based constructs using external stimuli for wound dressing has yet to be tackled. Fibroblasts play a significant role in wound healing and tissue implants at different stages, including extracellular matrix production, collagen synthesis, and wound and tissue remodeling. This study explores the synergistic interplay between photothermal activity and nanomaterial-mediated cell proliferation. The use of different graphene-based materials (GBM) in the development of photoactive bioinks is investigated. In particular, we report the creation of a skin-inspired dressing for wound healing and regenerative medicine. Three distinct GBM, namely, graphene oxide (GO), reduced graphene oxide (rGO), and graphene platelets (GP), were rigorously characterized, and their photothermal capabilities were elucidated. Our investigations revealed that rGO exhibited the highest photothermal efficiency and antibacterial properties when irradiated, even at a concentration as low as 0.05 mg/mL, without compromising human fibroblast viability. Alginate-based bioinks alongside human fibroblasts were employed for the bioprinting with rGO. The scaffold did not affect the survival of fibroblasts for 3 days after bioprinting, as cell viability was not affected. Remarkably, the inclusion of rGO did not compromise the printability of the hydrogel, ensuring the successful fabrication of complex constructs. Furthermore, the presence of rGO in the final scaffold continued to provide the benefits of photothermal antimicrobial therapy without detrimentally affecting fibroblast growth. This outcome underscores the potential of rGO-enhanced hydrogels in tissue engineering and regenerative medicine applications. Our findings hold promise for developing game-changer strategies in 4D bioprinting to create smart and functional tissue constructs with high fibroblast proliferation and promising therapeutic capabilities in drug delivery and bactericidal skin-inspired dressings.
en-copyright=
kn-copyright=
en-aut-name=FerrerasAndrea
en-aut-sei=Ferreras
en-aut-mei=Andrea
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=MatesanzAna
en-aut-sei=Matesanz
en-aut-mei=Ana
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=MendizabalJabier
en-aut-sei=Mendizabal
en-aut-mei=Jabier
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=ArtolaKoldo
en-aut-sei=Artola
en-aut-mei=Koldo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=NishinaYuta
en-aut-sei=Nishina
en-aut-mei=Yuta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=AcedoPablo
en-aut-sei=Acedo
en-aut-mei=Pablo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=JorcanoJosé L.
en-aut-sei=Jorcano
en-aut-mei=José L.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=RuizAmalia
en-aut-sei=Ruiz
en-aut-mei=Amalia
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=ReinaGiacomo
en-aut-sei=Reina
en-aut-mei=Giacomo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=MartínCristina
en-aut-sei=Martín
en-aut-mei=Cristina
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
affil-num=1
en-affil=Department of Bioengineering, Universidad Carlos III de Madrid
kn-affil=
affil-num=2
en-affil=Department of Electronic Technology, Universidad Carlos III de Madrid
kn-affil=
affil-num=3
en-affil=Domotek ingeniería prototipado y formación S.L.
kn-affil=
affil-num=4
en-affil=Domotek ingeniería prototipado y formación S.L.
kn-affil=
affil-num=5
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=6
en-affil=Department of Electronic Technology, Universidad Carlos III de Madrid
kn-affil=
affil-num=7
en-affil=Department of Bioengineering, Universidad Carlos III de Madrid
kn-affil=
affil-num=8
en-affil=Institute of Cancer Therapeutics, School of Pharmacy and Medical Sciences, Faculty of Life Sciences, University of Bradford
kn-affil=
affil-num=9
en-affil=Empa Swiss Federal Laboratories for Materials Science and Technology
kn-affil=
affil-num=10
en-affil=Department of Bioengineering, Universidad Carlos III de Madrid
kn-affil=
en-keyword=photothermal therapy
kn-keyword=photothermal therapy
en-keyword=graphene derivatives
kn-keyword=graphene derivatives
en-keyword=4D bioprinting
kn-keyword=4D bioprinting
en-keyword=alginate
kn-keyword=alginate
en-keyword=tissue engineering
kn-keyword=tissue engineering
END
start-ver=1.4
cd-journal=joma
no-vol=36
cd-vols=
no-issue=12
article-no=
start-page=4932
end-page=4951
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20241021
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The leucine-rich repeat receptor kinase QSK1 regulates PRR-RBOHD complexes targeted by the bacterial effector HopF2Pto
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Plants detect pathogens using cell-surface pattern recognition receptors (PRRs) such as ELONGATION Factor-TU (EF-TU) RECEPTOR (EFR) and FLAGELLIN SENSING 2 (FLS2), which recognize bacterial EF-Tu and flagellin, respectively. These PRRs belong to the leucine-rich repeat receptor kinase (LRR-RK) family and activate the production of reactive oxygen species via the NADPH oxidase RESPIRATORY BURST OXIDASE HOMOLOG D (RBOHD). The PRR-RBOHD complex is tightly regulated to prevent unwarranted or exaggerated immune responses. However, certain pathogen effectors can subvert these regulatory mechanisms, thereby suppressing plant immunity. To elucidate the intricate dynamics of the PRR-RBOHD complex, we conducted a comparative coimmunoprecipitation analysis using EFR, FLS2, and RBOHD in Arabidopsis thaliana. We identified QIAN SHOU KINASE 1 (QSK1), an LRR-RK, as a PRR-RBOHD complex-associated protein. QSK1 downregulated FLS2 and EFR abundance, functioning as a negative regulator of PRR-triggered immunity (PTI). QSK1 was targeted by the bacterial effector HopF2Pto, a mono-ADP ribosyltransferase, reducing FLS2 and EFR levels through both transcriptional and transcription-independent pathways, thereby inhibiting PTI. Furthermore, HopF2Pto transcriptionally downregulated PROSCOOP genes encoding important stress-regulated phytocytokines and their receptor MALE DISCOVERER 1-INTERACTING RECEPTOR-LIKE KINASE 2. Importantly, HopF2Pto requires QSK1 for its accumulation and virulence functions within plants. In summary, our results provide insights into the mechanism by which HopF2Pto employs QSK1 to desensitize plants to pathogen attack.
en-copyright=
kn-copyright=
en-aut-name=GotoYukihisa
en-aut-sei=Goto
en-aut-mei=Yukihisa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=KadotaYasuhiro
en-aut-sei=Kadota
en-aut-mei=Yasuhiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=MbengueMalick
en-aut-sei=Mbengue
en-aut-mei=Malick
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=LewisJennifer D
en-aut-sei=Lewis
en-aut-mei=Jennifer D
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=MatsuiHidenori
en-aut-sei=Matsui
en-aut-mei=Hidenori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=MakiNoriko
en-aut-sei=Maki
en-aut-mei=Noriko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=NgouBruno Pok Man
en-aut-sei=Ngou
en-aut-mei=Bruno Pok Man
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=SklenarJan
en-aut-sei=Sklenar
en-aut-mei=Jan
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=DerbyshirePaul
en-aut-sei=Derbyshire
en-aut-mei=Paul
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=ShibataArisa
en-aut-sei=Shibata
en-aut-mei=Arisa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
en-aut-name=IchihashiYasunori
en-aut-sei=Ichihashi
en-aut-mei=Yasunori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=11
ORCID=
en-aut-name=GuttmanDavid S
en-aut-sei=Guttman
en-aut-mei=David S
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=12
ORCID=
en-aut-name=NakagamiHirofumi
en-aut-sei=Nakagami
en-aut-mei=Hirofumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=13
ORCID=
en-aut-name=SuzukiTakamasa
en-aut-sei=Suzuki
en-aut-mei=Takamasa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=14
ORCID=
en-aut-name=MenkeFrank L H
en-aut-sei=Menke
en-aut-mei=Frank L H
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=15
ORCID=
en-aut-name=RobatzekSilke
en-aut-sei=Robatzek
en-aut-mei=Silke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=16
ORCID=
en-aut-name=DesveauxDarrell
en-aut-sei=Desveaux
en-aut-mei=Darrell
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=17
ORCID=
en-aut-name=ZipfelCyril
en-aut-sei=Zipfel
en-aut-mei=Cyril
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=18
ORCID=
en-aut-name=ShirasuKen
en-aut-sei=Shirasu
en-aut-mei=Ken
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=19
ORCID=
affil-num=1
en-affil=Plant Immunity Research Group, RIKEN Center for Sustainable Resource Science (CSRS)
kn-affil=
affil-num=2
en-affil=Plant Immunity Research Group, RIKEN Center for Sustainable Resource Science (CSRS)
kn-affil=
affil-num=3
en-affil=The Sainsbury Laboratory, University of East Anglia
kn-affil=
affil-num=4
en-affil=Department of Cell and System Biology, Centre for the Analysis of Genome Function and Evolution, University of Toronto
kn-affil=
affil-num=5
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=
affil-num=6
en-affil=Plant Immunity Research Group, RIKEN Center for Sustainable Resource Science (CSRS)
kn-affil=
affil-num=7
en-affil=Plant Immunity Research Group, RIKEN Center for Sustainable Resource Science (CSRS)
kn-affil=
affil-num=8
en-affil=The Sainsbury Laboratory, University of East Anglia
kn-affil=
affil-num=9
en-affil=The Sainsbury Laboratory, University of East Anglia
kn-affil=
affil-num=10
en-affil=Plant Immunity Research Group, RIKEN Center for Sustainable Resource Science (CSRS)
kn-affil=
affil-num=11
en-affil=Plant Immunity Research Group, RIKEN Center for Sustainable Resource Science (CSRS)
kn-affil=
affil-num=12
en-affil=Department of Cell and System Biology, Centre for the Analysis of Genome Function and Evolution, University of Toronto
kn-affil=
affil-num=13
en-affil=Plant Proteomics Research Unit, RIKEN CSRS
kn-affil=
affil-num=14
en-affil=College of Bioscience and Biotechnology, Chubu University
kn-affil=
affil-num=15
en-affil=The Sainsbury Laboratory, University of East Anglia
kn-affil=
affil-num=16
en-affil=The Sainsbury Laboratory, University of East Anglia
kn-affil=
affil-num=17
en-affil=Department of Cell and System Biology, Centre for the Analysis of Genome Function and Evolution, University of Toronto
kn-affil=
affil-num=18
en-affil=Institute of Plant and Microbial Biology, Zurich-Basel Plant Science Center, University of Zurich
kn-affil=
affil-num=19
en-affil=Plant Immunity Research Group, RIKEN Center for Sustainable Resource Science (CSRS)
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250724
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Electrochemical Generation of Sulfonamidyl Radicals via Anodic Oxidation of Hydrogen Bonding Complexes: Applications to Electrosynthesis of Benzosultams
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Amidyl radicals and sulfonamidyl radicals are widely used in the field of organic synthesis. In particular, the electrochemical oxidation of amides in the presence of bases is one of the most practical methods for generating amidyl radicals. However, it is often difficult to observe the “true” radical precursor, such as an amide anion and/or a hydrogen bonding complex with an amide and a base. We found that a sulfonamide and Bu4NOAc form a 1:1 hydrogen bonding complex by spectroscopic experiments. Cyclic voltammetry suggested that 1:1 hydrogen bonding complexes should be oxidized predominantly under the optimized conditions to afford a sulfonamidyl radical via the proton-coupled electron transfer (PCET) process by the oxidation of the complex. Thus-generated sulfonamidyl radicals could be used in the electrochemical synthesis of a variety of benzosultams.
en-copyright=
kn-copyright=
en-aut-name=OkumuraYasuyuki
en-aut-sei=Okumura
en-aut-mei=Yasuyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=SatoEisuke
en-aut-sei=Sato
en-aut-mei=Eisuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=MitsudoKoichi
en-aut-sei=Mitsudo
en-aut-mei=Koichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=SugaSeiji
en-aut-sei=Suga
en-aut-mei=Seiji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
affil-num=1
en-affil=Division of Applied Chemistry, Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Division of Applied Chemistry, Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Division of Applied Chemistry, Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Division of Applied Chemistry, Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=electrochemical generation
kn-keyword=electrochemical generation
en-keyword=sulfonamidyl radicals
kn-keyword=sulfonamidyl radicals
en-keyword=hydrogen bonding complexes
kn-keyword=hydrogen bonding complexes
en-keyword=anodic oxidation
kn-keyword=anodic oxidation
en-keyword=proton-coupled electron transfer
kn-keyword=proton-coupled electron transfer
en-keyword=electrosynthesis
kn-keyword=electrosynthesis
en-keyword=benzosultams
kn-keyword=benzosultams
en-keyword=cyclization
kn-keyword=cyclization
END
start-ver=1.4
cd-journal=joma
no-vol=11
cd-vols=
no-issue=11
article-no=
start-page=uhae248
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20240904
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A low-cost dpMIG-seq method for elucidating complex inheritance in polysomic crops: a case study in tetraploid blueberry
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Next-generation sequencing (NGS) library construction often requires high-quality DNA extraction, precise adjustment of DNA concentration, and restriction enzyme digestion to reduce genome complexity, which results in increased time and cost in sample preparation and processing. To address these challenges, a PCR-based method for rapid NGS library preparation, named dpMIG-seq, has been developed and proven effective for high-throughput genotyping. However, the application of dpMIG-seq has been limited to diploid and polyploid species with disomic inheritance. In this study, we obtained genome-wide single nucleotide polymorphism (SNP) markers for tetraploid blueberry to evaluate genotyping and downstream analysis outcomes. Comparison of genotyping qualities inferred across samples with different DNA concentrations and multiple bioinformatics approaches revealed high accuracy and reproducibility of dpMIG-seq-based genotyping, with Pearson's correlation coefficients between replicates in the range of 0.91 to 0.98. Furthermore, we demonstrated that dpMIG-seq enables accurate genotyping of samples with low DNA concentrations. Subsequently, we applied dpMIG-seq to a tetraploid F1 population to examine the inheritance probability of parental alleles. Pairing configuration analysis supported the random meiotic pairing of homologous chromosomes on a genome-wide level. On the other hand, preferential pairing was observed on chr-11, suggesting that there may be an exception to the random pairing. Genotypic data suggested quadrivalent formation within the population, although the frequency of quadrivalent formation varied by chromosome and cultivar. Collectively, the results confirmed applicability of dpMIG-seq for allele dosage genotyping and are expected to catalyze the adoption of this cost-effective and rapid genotyping technology in polyploid studies.
en-copyright=
kn-copyright=
en-aut-name=NagasakaKyoka
en-aut-sei=Nagasaka
en-aut-mei=Kyoka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=NishimuraKazusa
en-aut-sei=Nishimura
en-aut-mei=Kazusa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=MotokiKo
en-aut-sei=Motoki
en-aut-mei=Ko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=YamagataKeigo
en-aut-sei=Yamagata
en-aut-mei=Keigo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=NishiyamaSoichiro
en-aut-sei=Nishiyama
en-aut-mei=Soichiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=YamaneHisayo
en-aut-sei=Yamane
en-aut-mei=Hisayo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=TaoRyutaro
en-aut-sei=Tao
en-aut-mei=Ryutaro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=NakanoRyohei
en-aut-sei=Nakano
en-aut-mei=Ryohei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=NakazakiTetsuya
en-aut-sei=Nakazaki
en-aut-mei=Tetsuya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
affil-num=1
en-affil=Graduate School of Agriculture, Kyoto University
kn-affil=
affil-num=2
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Graduate School of Agriculture, Kyoto University
kn-affil=
affil-num=5
en-affil=Graduate School of Agriculture, Kyoto University
kn-affil=
affil-num=6
en-affil=Graduate School of Agriculture, Kyoto University
kn-affil=
affil-num=7
en-affil=Graduate School of Agriculture, Kyoto University
kn-affil=
affil-num=8
en-affil=Graduate School of Agriculture, Kyoto University
kn-affil=
affil-num=9
en-affil=Graduate School of Agriculture, Kyoto University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=22
cd-vols=
no-issue=6
article-no=
start-page=271
end-page=285
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=2024
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Effects of Sediment Microbial Fuel Cells on CH4 and CO2 Emissions from Straw Amended Paddy Soil
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Straw returning into paddy soil enhances soil organic matter which usually promotes the emission of greenhouse gases to the atmosphere. The application of sediment microbial fuel cells (SMFCs) to paddy soil activates power-generating microorganisms and enhances organic matter biodegradation. In the present study, rice straw addition in SMFCs was examined to determine its effect on CH4 and CO2 emissions. Columns (height, 25 cm; inner diameter, 9 cm) with four treatments: soil without and with rice straw under SMFC and without SMFC conditions were incubated at 25°C for 70 days. Anodic potential values at 7 cm depth sediment were kept higher by SMFCs than those without SMFCs. Cumulative CH4 emission was significantly reduced by SMFC with straw amendment (p < 0.05) with no significant effect on CO2 emission. 16S rRNA gene analysis results showed that Firmicutes at the phylum, Closteridiales and Acidobacteriales at order level were dominant on the anode of straw-added SMFC, whereas Methanomicrobiales were in the treatment without SMFC, indicating that a certain group of methanogens were suppressed by SMFC. Our results suggest that the anodic redox environment together with the enrichment of straw-degrading bacteria contributed to a competitive advantage of electrogenesis over methanogenesis in straw-added SMFC system.
en-copyright=
kn-copyright=
en-aut-name=BekeleAdhena Tesfau
en-aut-sei=Bekele
en-aut-mei=Adhena Tesfau
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=MaedaMorihiro
en-aut-sei=Maeda
en-aut-mei=Morihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=AkaoSatoshi
en-aut-sei=Akao
en-aut-mei=Satoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=SomuraHiroaki
en-aut-sei=Somura
en-aut-mei=Hiroaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=NakanoChiyu
en-aut-sei=Nakano
en-aut-mei=Chiyu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=NishinaYuta
en-aut-sei=Nishina
en-aut-mei=Yuta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
affil-num=1
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=
affil-num=3
en-affil=Faculty of Science and Engineering, Doshisha University
kn-affil=
affil-num=4
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=
affil-num=5
en-affil=Organization for Research Strategy and Development, Okayama University
kn-affil=
affil-num=6
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
en-keyword=straw
kn-keyword=straw
en-keyword=methane mitigation
kn-keyword=methane mitigation
en-keyword=SMFC
kn-keyword=SMFC
en-keyword=microorganisms
kn-keyword=microorganisms
en-keyword=current generation
kn-keyword=current generation
END
start-ver=1.4
cd-journal=joma
no-vol=9
cd-vols=
no-issue=34
article-no=
start-page=36114
end-page=36121
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20240812
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Engineering Zeolitic-Imidazolate-Framework-Derived Mo-Doped Cobalt Phosphide for Efficient OER Catalysts
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Designing a cheap, competent, and durable catalyst for the oxygen evolution reaction (OER) is exceedingly necessary for generating oxygen through a water-splitting reaction. In this project, we have designed a ZIF-67-originated molybdenum-doped cobalt phosphide (CoP) using a simplistic dissolution–regrowth method using Na2MoO4 and a subsequent phosphidation process. This leads to the formation of an exceptional hollow nanocage morphology that is useful for enhanced catalytic activity. Metal–organic frameworks, especially ZIF-67, can be used both as a template and as a metal (cobalt) precursor. Molybdenum-doped CoP was fabricated through a two-step synthesis process, and the fabricated Mo-doped CoP showed excellent catalytic activity during the OER with a lower value of overpotential. Furthermore, the effect of the Mo amount on the catalytic activity has been explored. The best catalyst (CoMoP-2) showed an onset potential of around 1.49 V at 10 mA cm–2 to give rise to a Tafel slope of 62.1 mV dec–1. The improved catalytic activity can be attributed to the increased porosity and surface area of the resultant catalyst.
en-copyright=
kn-copyright=
en-aut-name=RahmanMohammad Atiqur
en-aut-sei=Rahman
en-aut-mei=Mohammad Atiqur
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=CaiZe
en-aut-sei=Cai
en-aut-mei=Ze
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=MoushumyZannatul Mumtarin
en-aut-sei=Moushumy
en-aut-mei=Zannatul Mumtarin
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=TagawaRyuta
en-aut-sei=Tagawa
en-aut-mei=Ryuta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=HidakaYoshiharu
en-aut-sei=Hidaka
en-aut-mei=Yoshiharu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=NakanoChiyu
en-aut-sei=Nakano
en-aut-mei=Chiyu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=IslamMd. Saidul
en-aut-sei=Islam
en-aut-mei=Md. Saidul
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=SekineYoshihiro
en-aut-sei=Sekine
en-aut-mei=Yoshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=NishinaYuta
en-aut-sei=Nishina
en-aut-mei=Yuta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=IdaShintaro
en-aut-sei=Ida
en-aut-mei=Shintaro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
en-aut-name=HayamiShinya
en-aut-sei=Hayami
en-aut-mei=Shinya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=11
ORCID=
affil-num=1
en-affil=Department of Chemistry, Graduate School of Science and Technology, Kumamoto University
kn-affil=
affil-num=2
en-affil=Department of Chemistry, Graduate School of Science and Technology, Kumamoto University
kn-affil=
affil-num=3
en-affil=Department of Applied Chemistry and Biochemistry, Graduate School of Science and Technology, Kumamoto University
kn-affil=
affil-num=4
en-affil=Department of Chemistry, Graduate School of Science and Technology, Kumamoto University
kn-affil=
affil-num=5
en-affil=Department of Chemistry, Graduate School of Science and Technology, Kumamoto University
kn-affil=
affil-num=6
en-affil=Research Core for Interdisciplinary Sciences, Okayama University
kn-affil=
affil-num=7
en-affil=Department of Chemistry, Graduate School of Science and Technology, Kumamoto University
kn-affil=
affil-num=8
en-affil=Department of Chemistry, Graduate School of Science and Technology, Kumamoto University
kn-affil=
affil-num=9
en-affil=Research Core for Interdisciplinary Sciences, Okayama University
kn-affil=
affil-num=10
en-affil=Institute of Industrial Nanomaterials (IINa), Kumamoto University
kn-affil=
affil-num=11
en-affil=Institute of Industrial Nanomaterials (IINa), Kumamoto University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=238
cd-vols=
no-issue=
article-no=
start-page=120296
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250505
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Grafting-through functionalization of graphene oxide with cationic polymers for enhanced adsorption of anionic dyes and viruses
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Graphene oxide (GO) is a sheet-like carbon material with abundant oxygen-containing functional groups on its surface. GO has been extensively studied as an adsorbent for heavy metals and organic compounds. However, effective strategies for negatively charged materials have yet to be established. This study aimed to synthesize composites of GO and cationic polymers for the selective adsorption of negatively charged materials; a challenge in this approach is the strong electrostatic interactions between GO and cationic polymers, which can lead to aggregation. This study addresses this issue by employing the grafting-through method. GO was initially modified with allylamine to introduce a polymerizable site, followed by radical polymerization to covalently bond polymers to the GO surface, effectively preventing aggregation. Adsorption experiments demonstrated that the GO-polymer composite selectively adsorbs anionic dye, such as methyl orange. Virus adsorption tests showed significantly enhanced performance compared to pristine GO. These results emphasize the critical role of controlled surface modification and charge manipulation in optimizing the adsorption performance of GO. This study establishes a simple and effective approach for synthesizing GO-cationic polymer composites, contributing to the development of advanced materials for water purification applications.
en-copyright=
kn-copyright=
en-aut-name=KimuraRyota
en-aut-sei=Kimura
en-aut-mei=Ryota
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=Ferré-PujolPilar
en-aut-sei=Ferré-Pujol
en-aut-mei=Pilar
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=NishinaYuta
en-aut-sei=Nishina
en-aut-mei=Yuta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
affil-num=1
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Research Core for Interdisciplinary Sciences, Okayama University
kn-affil=
affil-num=3
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Graphene oxide
kn-keyword=Graphene oxide
en-keyword=Virus adsorption
kn-keyword=Virus adsorption
en-keyword=Dye adsorption
kn-keyword=Dye adsorption
en-keyword=Cationic polymer composites
kn-keyword=Cationic polymer composites
en-keyword=Adsorbent
kn-keyword=Adsorbent
en-keyword=Aggregation
kn-keyword=Aggregation
END
start-ver=1.4
cd-journal=joma
no-vol=60
cd-vols=
no-issue=76
article-no=
start-page=10544
end-page=10547
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=2024
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Investigating the radical properties of oxidized carbon materials under photo-irradiation: behavior of carbon radicals and their application in catalytic reactions
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Oxidized carbon materials have abundant surface functional groups and customizable properties, making them an excellent platform for generating radicals. Unlike reactive oxygen species such as hydroxide or superoxide radicals that have been reported previously, oxidized carbon also produces stable carbon radicals under photo-irradiation. This has been confirmed through electron spin resonance. Among the various oxidized carbon materials synthesized, graphene oxide shows the largest number of carbon radicals when exposed to blue LED light. The light absorption capacity, high surface area, and unique structural characteristics of oxidized carbon materials offer a unique function for radical-mediated oxidative reactions.
en-copyright=
kn-copyright=
en-aut-name=AhmedMd Razu
en-aut-sei=Ahmed
en-aut-mei=Md Razu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=AnayaIsrael Ortiz
en-aut-sei=Anaya
en-aut-mei=Israel Ortiz
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=NishinaYuta
en-aut-sei=Nishina
en-aut-mei=Yuta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
affil-num=1
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
affil-num=2
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
affil-num=3
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=213
end-page=231
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250314
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=RKPM: Restricted Kernel Page Mechanism to Mitigate Privilege Escalation Attacks
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Kernel memory corruption attacks against operating systems exploit kernel vulnerabilities to overwrite kernel data. Kernel address space layout randomization makes it difficult to identify kernel data by randomizing their virtual address space. Control flow integrity (CFI) prevents unauthorized kernel code execution by verifying kernel function calls. However, these countermeasures do not prohibit writing to kernel data. If the virtual address of privileged information is specified and CFI is circumvented, the privileged information can be modified by a kernel memory corruption attack. In this paper, we propose a restricted kernel page mechanism (RKPM) to mitigate kernel memory corruption attacks by introducing restricted kernel pages to protect the kernel data specified in the kernel. The RKPM focuses on the fact that kernel memory corruption attacks attempt to read the virtual addresses around the privileged information. The RKPM adopts page table mapping handling and a memory protection key to control the read and write restrictions of the restricted kernel pages. This allows us to mitigate kernel memory corruption attacks by capturing reads to the restricted kernel page before the privileged information is overwritten. As an evaluation of the RKPM, we confirmed that it can mitigate privilege escalation attacks on the latest Linux kernel. We also measured that there was a certain overhead in the kernel performance. This study enhances kernel security by mitigating privilege escalation attacks through the use of software or hardware based restricted kernel pages.
en-copyright=
kn-copyright=
en-aut-name=KuzunoHiroki
en-aut-sei=Kuzuno
en-aut-mei=Hiroki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=YamauchiToshihiro
en-aut-sei=Yamauchi
en-aut-mei=Toshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
affil-num=1
en-affil=Graduate School of Engineering, Kobe University
kn-affil=
affil-num=2
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=66
end-page=73
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20241106
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=kdMonitor: Kernel Data Monitor for Detecting Kernel Memory Corruption
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Privilege escalation attacks through memory corruption via kernel vulnerabilities pose significant threats to operating systems. Although the extended Berkley Packet Filter has been employed to trace kernel code execution by inserting interrupts before and after kernel code invocations, it does not track operations before and after kernel data writes, thus hindering effective kernel data monitoring. In this study, we introduce a kernel data monitor (kdMonitor), which is a novel security mechanism designed to detect unauthorized alterations in the monitored kernel data of a dedicated kernel page. The kdMonitor incorporates two distinct methods. The first is periodic monitoring which regularly outputs the monitored kernel data of the dedicated kernel pages. The second is dynamic monitoring, which restricts write access to a dedicated kernel page, supplements any write operations with page faults, and outputs the monitored kernel data of dedicated kernel pages. kdMonitor enables real-time tracking of specified kernel data of the dedicated kernel page residing in the kernel's virtual memory space from the separated machine. Using kdMonitor, we demonstrated its capability to pinpoint tampering with user process privileged information stemming from privilege escalation attacks on the kernel. Through an empirical evaluation, we validated the effectiveness of kdMonitor in detecting privilege escalation attacks by user processes on Linux. Performance assessments revealed that kdMonitor achieved an attack detection time of 0.83 seconds with an overhead of 0.726 %.
en-copyright=
kn-copyright=
en-aut-name=KuzunoHiroki
en-aut-sei=Kuzuno
en-aut-mei=Hiroki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=YamauchiToshihiro
en-aut-sei=Yamauchi
en-aut-mei=Toshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
affil-num=1
en-affil=Graduate School of Engineering, Kobe University
kn-affil=
affil-num=2
en-affil=Okayama University,Faculty of Environmental, Life, Natural Science and Technology
kn-affil=
en-keyword=Vulnerability countermeasure
kn-keyword=Vulnerability countermeasure
en-keyword=Operating system security
kn-keyword=Operating system security
en-keyword=System security
kn-keyword=System security
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=222
end-page=234
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2023
dt-pub=2023
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=vkTracer: Vulnerable Kernel Code Tracing to Generate Profile of Kernel Vulnerability
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Vulnerable kernel codes are a threat to an operating system kernel. An adversary’s user process can forcefully invoke a vulnerable kernel code to cause privilege escalation or denial of service (DoS). Although service providers or security operators have to determine the effect of kernel vulnerabilities on their environment to decide the kernel updating, the list of vulnerable kernel codes are not provided from the common vulnerabilities and exposures (CVE) report. It is difficult to identify the vulnerable kernel codes from the exploitation result of the kernel which indicates the account information or the kernel suspension. To identify the details of kernel vulnerabilities, this study proposes a vulnerable kernel code tracer (vkTracer), which employs an alternative viewpoint using proof-of-concept (PoC) code to create a profile of kernel vulnerability. vkTracer traces the user process of the PoC code and the running kernel to hook the invocation of the vulnerable kernel codes. Moreover, vkTracer extracts the whole kernel component’s information using the running and static kernel image and debug section. The evaluation results indicated that vkTracer could trace PoC code executions (e.g., privilege escalation and DoS), identify vulnerable kernel codes, and generate kernel vulnerability profiles. Furthermore, the implementation of vkTracer revealed that the identification overhead ranged from 5.2683 s to 5.2728 s on the PoC codes and the acceptable system call latency was 3.7197 μs.
en-copyright=
kn-copyright=
en-aut-name=KuzunoHiroki
en-aut-sei=Kuzuno
en-aut-mei=Hiroki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=YamauchiToshihiro
en-aut-sei=Yamauchi
en-aut-mei=Toshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
affil-num=1
en-affil=Graduate School of Engineering, Kobe University
kn-affil=
affil-num=2
en-affil=Faculty of Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Kernel vulnerability
kn-keyword=Kernel vulnerability
en-keyword=Dynamic analysis
kn-keyword=Dynamic analysis
en-keyword=System security
kn-keyword=System security
END
start-ver=1.4
cd-journal=joma
no-vol=17
cd-vols=
no-issue=7
article-no=
start-page=902
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250711
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Development of an Antimicrobial Coating Film for Denture Lining Materials
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Background/Objectives: Denture hygiene is essential for the prevention of oral candidiasis, a condition frequently associated with Candida albicans colonization on denture surfaces. Cetylpyridinium chloride (CPC)-loaded montmorillonite (CPC-Mont) has demonstrated antimicrobial efficacy in tissue conditioners and demonstrates potential for use in antimicrobial coatings. In this study, we aimed to develop and characterize CPC-Mont-containing coating films for dentures, focusing on their physicochemical behaviors and antifungal efficacies. Methods: CPC was intercalated into sodium-type montmorillonite to prepare CPC-Mont; thereafter, films containing CPC-Mont were fabricated using emulsions of different polymer types (nonionic, cationic, and anionic). CPC loading, release, and recharging behaviors were assessed at various temperatures, and activation energies were calculated using Arrhenius plots. Antimicrobial efficacy against Candida albicans was evaluated for each film using standard microbial assays. Results: X-ray diffraction analysis confirmed the expansion of montmorillonite interlayer spacing by approximately 3 nm upon CPC loading. CPC-Mont showed temperature-dependent release and recharging behavior, with higher temperatures enhancing its performance. The activation energy for CPC release was 38 kJ/mol, while that for recharging was 26 kJ/mol. Nonionic emulsions supported uniform CPC-Mont dispersion and successful film formation, while cationic and anionic emulsions did not. CPC-Mont-containing coatings maintained antimicrobial activity against Candida albicans on dentures. Conclusions: CPC-Mont can be effectively incorporated into nonionic emulsion-based films to create antimicrobial coatings for denture applications. The films exhibited temperature-responsive, reversible CPC release and recharging behaviors, while maintaining antifungal efficacy, findings which suggest the potential utility of CPC-Mont-containing films as a practical strategy to prevent denture-related candidiasis.
en-copyright=
kn-copyright=
en-aut-name=YoshiharaKumiko
en-aut-sei=Yoshihara
en-aut-mei=Kumiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=KameyamaTakeru
en-aut-sei=Kameyama
en-aut-mei=Takeru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=NagaokaNoriyuki
en-aut-sei=Nagaoka
en-aut-mei=Noriyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=MaruoYukinori
en-aut-sei=Maruo
en-aut-mei=Yukinori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=YoshidaYasuhiro
en-aut-sei=Yoshida
en-aut-mei=Yasuhiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=Van MeerbeekBart
en-aut-sei=Van Meerbeek
en-aut-mei=Bart
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=OkiharaTakumi
en-aut-sei=Okihara
en-aut-mei=Takumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
affil-num=1
en-affil=National Institute of Advanced Industrial Science and Technology (AIST), Health and Medical Research Institute
kn-affil=
affil-num=2
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Dental School, Advanced Research Center for Oral and Craniofacial Science, Okayama University
kn-affil=
affil-num=4
en-affil=Department of Prosthodontics, Okayama University
kn-affil=
affil-num=5
en-affil=Department of Biomaterials and Bioengineering, Faculty of Dental Medicine, Hokkaido University
kn-affil=
affil-num=6
en-affil=BIOMAT, Department of Oral Health Sciences, KU Leuvem
kn-affil=
affil-num=7
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
en-keyword=antimicrobial
kn-keyword=antimicrobial
en-keyword=denture liner
kn-keyword=denture liner
en-keyword=cetylpyridiniumchloride
kn-keyword=cetylpyridiniumchloride
en-keyword=drug release
kn-keyword=drug release
en-keyword=drug recharge
kn-keyword=drug recharge
END
start-ver=1.4
cd-journal=joma
no-vol=637
cd-vols=
no-issue=8046
article-no=
start-page=744
end-page=748
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250101
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Centrophilic retrotransposon integration via CENH3 chromatin in Arabidopsis
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In organisms ranging from vertebrates to plants, major components of centromeres are rapidly evolving repeat sequences, such as tandem repeats (TRs) and transposable elements (TEs), which harbour centromere-specific histone H3 (CENH3)1,2. Complete centromere structures recently determined in human and Arabidopsis suggest frequent integration and purging of retrotransposons within the TR regions of centromeres3,4,5. Despite the high impact of ‘centrophilic’ retrotransposons on the paradox of rapid centromere evolution, the mechanisms involved in centromere targeting remain poorly understood in any organism. Here we show that both Ty3 and Ty1 long terminal repeat retrotransposons rapidly turnover within the centromeric TRs of Arabidopsis species. We demonstrate that the Ty1/Copia element Tal1 (Transposon of Arabidopsis lyrata 1) integrates de novo into regions occupied by CENH3 in Arabidopsis thaliana, and that ectopic expansion of the CENH3 region results in spread of Tal1 integration regions. The integration spectra of chimeric TEs reveal the key structural variations responsible for contrasting chromatin-targeting specificities to centromeres versus gene-rich regions, which have recurrently converted during the evolution of these TEs. Our findings show the impact of centromeric chromatin on TE-mediated rapid centromere evolution, with relevance across eukaryotic genomes.
en-copyright=
kn-copyright=
en-aut-name=TsukaharaSayuri
en-aut-sei=Tsukahara
en-aut-mei=Sayuri
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=BousiosAlexandros
en-aut-sei=Bousios
en-aut-mei=Alexandros
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=Perez-RomanEstela
en-aut-sei=Perez-Roman
en-aut-mei=Estela
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=YamaguchiSota
en-aut-sei=Yamaguchi
en-aut-mei=Sota
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=LeduqueBasile
en-aut-sei=Leduque
en-aut-mei=Basile
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=NakanoAimi
en-aut-sei=Nakano
en-aut-mei=Aimi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=NaishMatthew
en-aut-sei=Naish
en-aut-mei=Matthew
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=OsakabeAkihisa
en-aut-sei=Osakabe
en-aut-mei=Akihisa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=ToyodaAtsushi
en-aut-sei=Toyoda
en-aut-mei=Atsushi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=ItoHidetaka
en-aut-sei=Ito
en-aut-mei=Hidetaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
en-aut-name=EderaAlejandro
en-aut-sei=Edera
en-aut-mei=Alejandro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=11
ORCID=
en-aut-name=TominagaSayaka
en-aut-sei=Tominaga
en-aut-mei=Sayaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=12
ORCID=
en-aut-name=Juliarni
en-aut-sei=Juliarni
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=13
ORCID=
en-aut-name=KatoKae
en-aut-sei=Kato
en-aut-mei=Kae
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=14
ORCID=
en-aut-name=OdaShoko
en-aut-sei=Oda
en-aut-mei=Shoko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=15
ORCID=
en-aut-name=InagakiSoichi
en-aut-sei=Inagaki
en-aut-mei=Soichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=16
ORCID=
en-aut-name=LorkovićZdravko
en-aut-sei=Lorković
en-aut-mei=Zdravko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=17
ORCID=
en-aut-name=NagakiKiyotaka
en-aut-sei=Nagaki
en-aut-mei=Kiyotaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=18
ORCID=
en-aut-name=BergerFrédéric
en-aut-sei=Berger
en-aut-mei=Frédéric
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=19
ORCID=
en-aut-name=KawabeAkira
en-aut-sei=Kawabe
en-aut-mei=Akira
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=20
ORCID=
en-aut-name=QuadranaLeandro
en-aut-sei=Quadrana
en-aut-mei=Leandro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=21
ORCID=
en-aut-name=HendersonIan
en-aut-sei=Henderson
en-aut-mei=Ian
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=22
ORCID=
en-aut-name=KakutaniTetsuji
en-aut-sei=Kakutani
en-aut-mei=Tetsuji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=23
ORCID=
affil-num=1
en-affil=Department of Biological Sciences, The University of Tokyo
kn-affil=
affil-num=2
en-affil=School of Life Sciences, University of Sussex
kn-affil=
affil-num=3
en-affil=School of Life Sciences, University of Sussex
kn-affil=
affil-num=4
en-affil=Department of Biological Sciences, The University of Tokyo
kn-affil=
affil-num=5
en-affil=Institute of Plant Sciences Paris‐Saclay (IPS2), Centre National de la Recherche Scientifique, Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, Université Evry, Université Paris
kn-affil=
affil-num=6
en-affil=Department of Biological Sciences, The University of Tokyo
kn-affil=
affil-num=7
en-affil=Department of Plant Sciences, University of Cambridge
kn-affil=
affil-num=8
en-affil=Department of Biological Sciences, The University of Tokyo
kn-affil=
affil-num=9
en-affil=Center for Genetic Resource Information, National Institute of Genetics
kn-affil=
affil-num=10
en-affil=Faculty of Science, Hokkaido University
kn-affil=
affil-num=11
en-affil=Institute of Plant Sciences Paris‐Saclay (IPS2), Centre National de la Recherche Scientifique, Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, Université Evry, Université Paris
kn-affil=
affil-num=12
en-affil=Department of Biological Sciences, The University of Tokyo
kn-affil=
affil-num=13
en-affil=Department of Biological Sciences, The University of Tokyo
kn-affil=
affil-num=14
en-affil=Department of Integrated Genetics, National Institute of Genetics
kn-affil=
affil-num=15
en-affil=Department of Biological Sciences, The University of Tokyo
kn-affil=
affil-num=16
en-affil=Department of Biological Sciences, The University of Tokyo
kn-affil=
affil-num=17
en-affil=Gregor Mendel Institute (GMI), Austrian Academy of Sciences, Vienna BioCenter (VBC)
kn-affil=
affil-num=18
en-affil=Institute of Plant Science and Resources, Okayama University
kn-affil=
affil-num=19
en-affil=Gregor Mendel Institute (GMI), Austrian Academy of Sciences, Vienna BioCenter (VBC)
kn-affil=
affil-num=20
en-affil=Faculty of Life Sciences, Kyoto Sangyo University
kn-affil=
affil-num=21
en-affil=Institute of Plant Sciences Paris‐Saclay (IPS2), Centre National de la Recherche Scientifique, Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, Université Evry, Université Paris
kn-affil=
affil-num=22
en-affil=Department of Plant Sciences, University of Cambridge
kn-affil=
affil-num=23
en-affil=Department of Biological Sciences, The University of Tokyo
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=186
cd-vols=
no-issue=
article-no=
start-page=118030
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202505
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=(+)-Terrein exerts anti-obesity and anti-diabetic effects by regulating the differentiation and thermogenesis of brown adipocytes in mice fed a high-fat diet
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Objective: (+)-Terrein, a low-molecular-weight secondary metabolite from Aspergillus terreus, inhibits adipocyte differentiation in vitro. However, the precise mechanisms underlying the effects of (+)-terrein on adipocytes remain unclear. We hypothesized that (+)-terrein modulates adipogenesis and glucose homeostasis in obesity and diabetes via anti-inflammatory action and regulation of adipocyte differentiation. Hence, in this study, we aimed to investigate the in vivo anti-diabetic and anti-obesity effects of (+)-terrein.
Methods: Male C57BL/6 J mice were fed normal chow or high-fat (HF) diet and administered (+)-terrein (180 mg/kg) via intraperitoneal injection. Glucose and insulin tolerance tests, serum biochemical assays, and histological analyses were also performed. Rat brown preadipocytes, mouse brown preadipocytes (T37i cells), and inguinal white adipose tissue (ingWAT) preadipocytes were exposed to (+)-terrein during in vitro adipocyte differentiation. Molecular markers associated with thermogenesis and differentiation were quantified using real-time polymerase chain reaction and western blotting.
Results: (+)-Terrein-treated mice exhibited improved insulin sensitivity and reduced serum lipid and glucose levels, irrespective of the diet. Furthermore, (+)-terrein suppressed body weight gain and mitigated fat accumulation by activating brown adipose tissue in HF-fed mice. (+)-Terrein facilitated the in vitro differentiation of rat brown preadipocytes, T37i cells, and ingWAT preadipocytes by upregulating peroxisome proliferator-activated receptor-γ (PPARγ). This effect was synergistic with that of a PPARγ agonist.
Conclusion: This study demonstrated that (+)-terrein effectively induces PPARγ expression and brown adipocyte differentiation, leading to reduced weight gain and improved glucose and lipid profiles in HF-fed mice. Thus, (+)-terrein is a potent novel agent with potential anti-obesity and anti-diabetic properties.
en-copyright=
kn-copyright=
en-aut-name=Aoki-SaitoHaruka
en-aut-sei=Aoki-Saito
en-aut-mei=Haruka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=MandaiHiroki
en-aut-sei=Mandai
en-aut-mei=Hiroki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=NakakuraTakashi
en-aut-sei=Nakakura
en-aut-mei=Takashi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=SasakiTsutomu
en-aut-sei=Sasaki
en-aut-mei=Tsutomu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=KitamuraTadahiro
en-aut-sei=Kitamura
en-aut-mei=Tadahiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=OmoriKazuhiro
en-aut-sei=Omori
en-aut-mei=Kazuhiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=HisadaTakeshi
en-aut-sei=Hisada
en-aut-mei=Takeshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=OkadaShuichi
en-aut-sei=Okada
en-aut-mei=Shuichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=SugaSeiji
en-aut-sei=Suga
en-aut-mei=Seiji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=YamadaMasanobu
en-aut-sei=Yamada
en-aut-mei=Masanobu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
en-aut-name=SaitoTsugumichi
en-aut-sei=Saito
en-aut-mei=Tsugumichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=11
ORCID=
affil-num=1
en-affil=Department of Allergy and Respiratory Medicine, Gunma University Graduate School of Medicine
kn-affil=
affil-num=2
en-affil=Department of Pharmacy, Faculty of Pharmacy, Gifu University of Medical Science
kn-affil=
affil-num=3
en-affil=Department of Anatomy, Teikyo University School of Medicine
kn-affil=
affil-num=4
en-affil=Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University
kn-affil=
affil-num=5
en-affil=Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University
kn-affil=
affil-num=6
en-affil=Department of Pathophysiology-Periodontal Science, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=7
en-affil=Gunma University Graduate School of Health Sciences
kn-affil=
affil-num=8
en-affil=Department of Diabetes, Soleiyu Asahi Clinic
kn-affil=
affil-num=9
en-affil=Division of Applied Chemistry, Graduate School of Natural Sciences and Technology, Okayama University
kn-affil=
affil-num=10
en-affil=Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine
kn-affil=
affil-num=11
en-affil=Department of Health & Sports Sciences, Faculty of Education, Tokyo Gakugei University
kn-affil=
en-keyword=(+)-Terrein
kn-keyword=(+)-Terrein
en-keyword=Brown adipose tissue
kn-keyword=Brown adipose tissue
en-keyword=Thermogenesis
kn-keyword=Thermogenesis
en-keyword=Obesity
kn-keyword=Obesity
en-keyword=PPARγ
kn-keyword=PPARγ
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=2025
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=From Carboxylic Acids or Their Derivatives to Amines and Ethers: Modern Decarboxylative Approaches for Sustainable C–N and C–O Bond Formation
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Amines and ethers represent essential structural motifs in pharmaceuticals, natural products, organic materials, and catalytic systems. The development of novel, environmentally friendly, and cost-effective strategies for constructing C–N and C–O bonds is therefore of significant importance for the synthesis of these compounds. In recent years, carboxylic acids and their derivatives have emerged as attractive, inexpensive, non-toxic, and readily available synthetic building blocks, serving as promising alternatives to aryl halides. Growing evidence has demonstrated that decarboxylative amination and etherification of carboxylic acid derivatives offer a powerful approach for the synthesis of amines and ethers. These transformations proceed via three principal mechanistic pathways, each offering high atom economy. Specifically, carbanions (or organometallic species) generated through heterolytic decarboxylation can react with suitable electrophiles to form C–heteroatom bonds. In contrast, carbon-centred radicals produced through homolytic decarboxylation can couple with heteroatom-based reagents via radical recombination or oxidative trapping. Additionally, carbocations are typically formed via electrochemical oxidation of carboxylic acids: oxidative decarboxylation first yields a carbon radical, which is then further oxidized at the anode to generate a carbocation. This highly electrophilic intermediate can subsequently be intercepted by heteroatom nucleophiles to construct C–N or C–O bonds. This review highlights recent advances in the field, with a focus on transition metal catalysis, photoredox catalysis, and electrochemical methods for decarboxylative amination and etherification.
en-copyright=
kn-copyright=
en-aut-name=YanWeidan
en-aut-sei=Yan
en-aut-mei=Weidan
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=TianTian
en-aut-sei=Tian
en-aut-mei=Tian
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=NishiharaYasushi
en-aut-sei=Nishihara
en-aut-mei=Yasushi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Research Institute for Interdisciplinary Science (RIIS), Okayama University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=e00678
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250623
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Alkoxy‐Substituted Anthrabis(Thiadiazole)‐Terthiophene Copolymers for Organic Photovoltaics: A Unique Wavy Backbone Enhances Aggregation, Molecular Order, and Device Efficiency
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Two polymer donors, PATz3T-o6BO and PATz3T-o6HD, incorporating alkoxy-substituted anthra[1,2-c:5,6-c′]bis([1,2,5]thiadiazole), were strategically designed and synthesized. The unique wavy backbone of these polymers effectively reduced aggregation, leading to enhanced solubility and significantly improved molecular ordering. Consequently, the PATz3T-o6HD:Y12-based solar cells achieved a power conversion efficiency (PCE) of 7.94%. These findings provide valuable insights into the molecular design of high-performance polymer donors for organic photovoltaics (OPVs).
en-copyright=
kn-copyright=
en-aut-name=YanYi
en-aut-sei=Yan
en-aut-mei=Yi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=MoriHiroki
en-aut-sei=Mori
en-aut-mei=Hiroki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=YoshinoTomoki
en-aut-sei=Yoshino
en-aut-mei=Tomoki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=InamiRyuki
en-aut-sei=Inami
en-aut-mei=Ryuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=ChangJiaxin
en-aut-sei=Chang
en-aut-mei=Jiaxin
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=GaoJunqing
en-aut-sei=Gao
en-aut-mei=Junqing
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=NishiharaYasushi
en-aut-sei=Nishihara
en-aut-mei=Yasushi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
affil-num=1
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
affil-num=3
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=5
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=6
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=7
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
en-keyword=Aggregation
kn-keyword=Aggregation
en-keyword=Backbone conformation
kn-keyword=Backbone conformation
en-keyword=Conjugated polymers
kn-keyword=Conjugated polymers
en-keyword=Organic solar cells
kn-keyword=Organic solar cells
en-keyword=Semiconducting polymers
kn-keyword=Semiconducting polymers
END
start-ver=1.4
cd-journal=joma
no-vol=39
cd-vols=
no-issue=8
article-no=
start-page=1653
end-page=1660
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250527
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Chemical composition of essential oil of Acacia crassicarpa Benth. (Fabaceae) from Vietnam
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This research aimed to identify the volatile compounds found in the fresh leaves of Acacia crassicarpa Benth. This is the first phytochemical investigation of this species. Essential oils from the leaves of A. crassicarpa were obtained by hydro-distillation and analyzed by gas chromatography coupled with mass spectrometry (GC/MS). Sixty-one compounds accounting for 95.8% of the leaf oil were identified. The classes of compounds identified in the oil sample were aldehydes (30.7%), sesquiterpene hydrocarbons (25.2%), alkanes (19.1%), oxygenated monoterpenes (3.6%) oxygenated sesquiterpenes (2.3%), monoterpene hydrocarbons (0.8%) and others (14.2%). The major constituents in the leaf oil were tridecanal (24.5%), (E)-caryophyllene (11.7%), n-heneicosane (7.2%), squalene (6.5%), and 7-tetradecenal (5.9%).
en-copyright=
kn-copyright=
en-aut-name=Quoc DoanTuan
en-aut-sei=Quoc Doan
en-aut-mei=Tuan
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=Tien DinhTai
en-aut-sei=Tien Dinh
en-aut-mei=Tai
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=K. MatsumotoTetsuya
en-aut-sei=K. Matsumoto
en-aut-mei=Tetsuya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=DinhDien
en-aut-sei=Dinh
en-aut-mei=Dien
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=MikiNaoko
en-aut-sei=Miki
en-aut-mei=Naoko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=HirobeMuneto
en-aut-sei=Hirobe
en-aut-mei=Muneto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=Thi NguyenHoai
en-aut-sei=Thi Nguyen
en-aut-mei=Hoai
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
affil-num=1
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Hue Union of Science and Technology Associations (HUSTA)
kn-affil=
affil-num=3
en-affil=Graduate School of Science and Engineering, Ibaraki University
kn-affil=
affil-num=4
en-affil=Phong Dien Nature Reserve, Phong Dien district, Thua Thien Hue province
kn-affil=
affil-num=5
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=6
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=7
en-affil=Faculty of Pharmacy, Hue University of Medicine and Pharmacy, Hue University
kn-affil=
en-keyword=Acacia crassicarpa
kn-keyword=Acacia crassicarpa
en-keyword=Essential oil
kn-keyword=Essential oil
en-keyword=Tridecanal
kn-keyword=Tridecanal
en-keyword=(E)-Caryophyllene
kn-keyword=(E)-Caryophyllene
END
start-ver=1.4
cd-journal=joma
no-vol=15
cd-vols=
no-issue=1
article-no=
start-page=10712
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20241227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Shoot-Silicon-Signal protein to regulate root silicon uptake in rice
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Plants accumulate silicon to protect them from biotic and abiotic stresses. Especially in rice (Oryza sativa), a typical Si-accumulator, tremendous Si accumulation is indispensable for healthy growth and productivity. Here, we report a shoot-expressed signaling protein, Shoot-Silicon-Signal (SSS), an exceptional homolog of the flowering hormone “florigen” differentiated in Poaceae. SSS transcript is only detected in the shoot, whereas the SSS protein is also detected in the root and phloem sap. When Si is supplied from the root, the SSS transcript rapidly decreases, and then the SSS protein disappears. In sss mutants, root Si uptake and expression of Si transporters are decreased to a basal level regardless of the Si supply. The grain yield of the mutants is decreased to 1/3 due to insufficient Si accumulation. Thus, SSS is a key phloem-mobile protein for integrating root Si uptake and shoot Si accumulation underlying the terrestrial adaptation strategy of grasses.
en-copyright=
kn-copyright=
en-aut-name=YamajiNaoki
en-aut-sei=Yamaji
en-aut-mei=Naoki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=Mitani-UenoNamiki
en-aut-sei=Mitani-Ueno
en-aut-mei=Namiki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=FujiiToshiki
en-aut-sei=Fujii
en-aut-mei=Toshiki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=ShinyaTomonori
en-aut-sei=Shinya
en-aut-mei=Tomonori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=ShaoJi Feng
en-aut-sei=Shao
en-aut-mei=Ji Feng
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=WatanukiShota
en-aut-sei=Watanuki
en-aut-mei=Shota
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=SaitohYasunori
en-aut-sei=Saitoh
en-aut-mei=Yasunori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=MaJian Feng
en-aut-sei=Ma
en-aut-mei=Jian Feng
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
affil-num=1
en-affil=Institute of Plant Science and Resources, Okayama University
kn-affil=
affil-num=2
en-affil=Institute of Plant Science and Resources, Okayama University
kn-affil=
affil-num=3
en-affil=Institute of Plant Science and Resources, Okayama University
kn-affil=
affil-num=4
en-affil=Institute of Plant Science and Resources, Okayama University
kn-affil=
affil-num=5
en-affil=State Key Laboratory of Subtropical Silviculture, Zhejiang Agriculture & Forestry University
kn-affil=
affil-num=6
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=7
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=8
en-affil=Institute of Plant Science and Resources, Okayama University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=13
cd-vols=
no-issue=23
article-no=
start-page=17720
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=2025
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A meta-linked isomer of ITIC: influence of aggregation patterns on open-circuit voltage in organic solar cells
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Improving the open-circuit voltage (VOC) of organic solar cells (OSCs) remains an important challenge. While it is known that the energy levels at the donor/acceptor (D/A) interface affect the VOC, the impact of aggregation patterns on the energy levels at the D/A interface has not been fully elucidated. Herein, we focus on ITIC, a widely used acceptor in OSCs, and designed a meta-linked isomer of ITIC (referred to as im-ITIC) to alter molecular symmetry and modify substitution arrangements. Concentration-dependent 1H NMR spectra revealed that im-ITIC shows stronger aggregation behavior in solution. Single-crystal X-ray analysis showed that im-ITIC forms both tail-to-tail (J-aggregation) and face-to-face (H-aggregation) stacking modes, whereas ITIC exclusively forms tail-to-tail stacking. OSCs based on PBDB-T:im-ITIC showed a high VOC value of 1.02 V, which is 0.12 V higher than that of those based on PBDB-T:ITIC. Time-resolved infrared measurements revealed the lifetime of free electrons for the pristine and blend films. The energy levels of the charge transfer state (ECT) for PBDB-T:im-ITIC- and PBDB-T:ITIC OSCs were determined to be 1.57 and 1.39 eV, respectively, correlating with the VOC values. Theoretical calculations indicated that pronounced H-aggregation in im-ITIC increases the ECT compared with J-aggregation, contributing to the improved VOC. This study underscores the critical impact of molecular aggregation patterns on energy alignment and VOC enhancement, offering insights into molecular design for achieving high VOC in OSCs.
en-copyright=
kn-copyright=
en-aut-name=WangKai
en-aut-sei=Wang
en-aut-mei=Kai
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=JinnaiSeihou
en-aut-sei=Jinnai
en-aut-mei=Seihou
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=UesakaKaito
en-aut-sei=Uesaka
en-aut-mei=Kaito
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=YamakataAkira
en-aut-sei=Yamakata
en-aut-mei=Akira
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=IeYutaka
en-aut-sei=Ie
en-aut-mei=Yutaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
affil-num=1
en-affil=The Institute of Scientific and Industrial Research (SANKEN), The University of Osaka
kn-affil=
affil-num=2
en-affil=The Institute of Scientific and Industrial Research (SANKEN), The University of Osaka
kn-affil=
affil-num=3
en-affil=Graduate School of Natural Science & Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Graduate School of Natural Science & Technology, Okayama University
kn-affil=
affil-num=5
en-affil=The Institute of Scientific and Industrial Research (SANKEN), The University of Osaka
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=262
cd-vols=
no-issue=2
article-no=
start-page=385
end-page=395
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20241023
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Analysis of the effect of permeant solutes on the hydraulic resistance of the plasma membrane in cells of Chara corallina
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In the cells of Chara corallina, permeant monohydric alcohols including methanol, ethanol and 1-propanol increased the hydraulic resistance of the membrane (Lpm−1). We found that the relative value of the hydraulic resistance (rLpm−1) was linearly dependent on the concentration (Cs) of the alcohol. The relationship is expressed in the equation: rLpm−1 = ρmCs + 1, where ρm is the hydraulic resistance modifier coefficient of the membrane. Ye et al. (2004) showed that membrane-permeant glycol ethers also increased Lp−1. We used their data to estimate Lpm−1 and rLpm−1. The values of rLpm−1 fit the above relation we found for alcohols. When we plotted the ρm values of all the permeant alcohols and glycol ethers against their molecular weights (MW), we obtained a linear curve with a slope of 0.014 M−1/MW and with a correlation coefficient of 0.99. We analyzed the influence of the permeant solutes on the relative hydraulic resistance of the membrane (rLpm−1) as a function of the external (π0) and internal (πi) osmotic pressures. The analysis showed that the hydraulic resistance modifier coefficients (ρm) were linearly related to the MW of the permeant solutes with a slope of 0.012 M−1/MW and with a correlation coefficient of 0.84. The linear relationship between the effects of permeating solutes on the hydraulic resistance modifier coefficient (ρm) and the MW can be explained in terms of the effect of the effective osmotic pressure on the hydraulic conductivity of water channels. The result of the analysis suggests that the osmotic pressure and not the size of the permeant solute as proposed by (Ye et al., J Exp Bot 55:449–461, 2004) is the decisive factor in a solute’s influence on hydraulic conductivity. Thus, characean water channels (aquaporins) respond to permeant solutes with essentially the same mechanism as to impermeant solutes.
en-copyright=
kn-copyright=
en-aut-name=TazawaMasashi
en-aut-sei=Tazawa
en-aut-mei=Masashi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=WayneRandy
en-aut-sei=Wayne
en-aut-mei=Randy
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=KatsuharaMaki
en-aut-sei=Katsuhara
en-aut-mei=Maki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
affil-num=1
en-affil=Yoshida Biological Laboratory
kn-affil=
affil-num=2
en-affil=Laboratory of Natural Philosophy, Plant Biology Section, Cornell University
kn-affil=
affil-num=3
en-affil=Institute of Plant Science and Resources (IPSR), Okayama University
kn-affil=
en-keyword=Chara corallina
kn-keyword=Chara corallina
en-keyword=Effective osmotic pressure
kn-keyword=Effective osmotic pressure
en-keyword=Hydraulic resistance
kn-keyword=Hydraulic resistance
en-keyword=Plasma membrane
kn-keyword=Plasma membrane
en-keyword=Reflection coefficient
kn-keyword=Reflection coefficient
END
start-ver=1.4
cd-journal=joma
no-vol=169
cd-vols=
no-issue=
article-no=
start-page=155745
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202510
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Recent progress on phenothiazine organophotoredox catalysis
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Photoredox catalysis has garnered significant attention in recent years due to its broad applicability in visible-light-induced organic transformations. While significant progress has been made in the development of highly oxidizing catalysts, such as acridinium catalysts, there remains a notable shortage of strongly reducing organophotoredox catalysts. Phenothiazines are widely used as photoredox catalysts owing to their unique redox potentials, particularly their low excited-state oxidation potentials (Eox* = −1.35 V to −3.51 V vs. SCE). Thus, they can be applied to a variety of photoredox reactions with oxidative-quenching cycles, and effectively reduce various organic molecules, such as aryl and alkyl halides, alkenes, malonyl peroxides, cobalt complexes, and redox-active esters. Due to their unique properties, this review focuses on the recent advances in phenothiazine organophotoredox catalysis.
en-copyright=
kn-copyright=
en-aut-name=TanakaKenta
en-aut-sei=Tanaka
en-aut-mei=Kenta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=TakamuraHiroyoshi
en-aut-sei=Takamura
en-aut-mei=Hiroyoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=KadotaIsao
en-aut-sei=Kadota
en-aut-mei=Isao
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
affil-num=1
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Phenothiazine
kn-keyword=Phenothiazine
en-keyword=Photoredox catalysis
kn-keyword=Photoredox catalysis
en-keyword=Visible light
kn-keyword=Visible light
en-keyword=Radical
kn-keyword=Radical
END
start-ver=1.4
cd-journal=joma
no-vol=8
cd-vols=
no-issue=13
article-no=
start-page=9595
end-page=9603
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250616
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Microagglomerate of VO2 Particles Packing Paraffin Wax Using Capillary Force as a Latent Thermal Energy Storage Medium
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This study proposed a material to retain paraffin wax with vanadium dioxide (VO2) particles as a latent thermal energy storage medium, an alternative to core–shell microcapsules containing phase change materials. VO2 microparticles, which were synthesized through a sol–gel method and annealing process, were dispersed in the oil-in-water microemulsion to obtain microagglomerates of VO2 microparticles. The average diameter of microagglomerates was 5 μm, and they retained paraffin wax at the vacancies among VO2 particles. Although the microagglomerates had no complete shells similar to core–shell microcapsules, the microagglomerates successfully trapped paraffin wax droplets without any leakage even in a high-temperature environment. It was because capillary forces acting among VO2 particles strictly prevented any leakage of paraffin waxes. The differential scanning calorimetry revealed that the microagglomerates contained only 16.5 wt % of n-octadecane, used as a paraffin wax. However, since VO2 particles can release or absorb latent heat due to their metal–insulator phase transition, the proposed microagglomerates exhibited higher thermal energy storage densities than phase change microcapsules whose shells do not show phase transitions. Moreover, the microagglomerates exhibited higher thermal conductivity than microcapsules with amorphous inorganic shells because the VO2 particles were crystallized through annealing. The proposed microagglomerate is a promising form for further improving the thermal energy storage density and thermal performance of the latent thermal energy storage medium, especially in the temperature range of 30 to 70 °C.
en-copyright=
kn-copyright=
en-aut-name=IsobeKazuma
en-aut-sei=Isobe
en-aut-mei=Kazuma
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=YamauchiKaketo
en-aut-sei=Yamauchi
en-aut-mei=Kaketo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=YamadaYutaka
en-aut-sei=Yamada
en-aut-mei=Yutaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=HoribeAkihiko
en-aut-sei=Horibe
en-aut-mei=Akihiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
affil-num=1
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=microagglomerate
kn-keyword=microagglomerate
en-keyword=vanadium dioxide
kn-keyword=vanadium dioxide
en-keyword=paraffin wax
kn-keyword=paraffin wax
en-keyword=latent thermal energy storage medium
kn-keyword=latent thermal energy storage medium
en-keyword=capillary force
kn-keyword=capillary force
en-keyword=thermal energy storage density
kn-keyword=thermal energy storage density
en-keyword=thermal conductivity
kn-keyword=thermal conductivity
END
start-ver=1.4
cd-journal=joma
no-vol=16
cd-vols=
no-issue=26
article-no=
start-page=12024
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=2025
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Collective motions in the primary coordination sphere: a critical functional framework for catalytic activity of the oxygen-evolving complex of photosystem II
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Photosynthetic water oxidation, vital for dioxygen production and light energy conversion, is catalyzed by the oxygen-evolving complex of photosystem II, where the inorganic Mn4CaO5 cluster acts as the catalytic core. In this study, we investigate the functional significance of collective motions of amino acid side chains within the primary coordination sphere of the Mn cluster, focusing on their role in modulating the energetic demands for catalytic transformations in the S3 state. We applied regularized canonical correlation analysis to quantitatively correlate the three-dimensional arrangement of coordinating atoms with catalytic driving forces computed via density functional theory. Our analysis reveals that distinct collective side chain motions profoundly influence the energetic requirements for structural reconfigurations of the Mn cluster, achieved through expansion and contraction of the ligand cavity while fine-tuning its geometry to stabilize key intermediates. Complementary predictions from a neural network-based machine learning model indicate that the coordination sphere exerts a variable energetic impact on the catalytic transformations of the Mn cluster, depending on the S-state environment. Integrated computational analyses suggest that the extended lifetime of the S3YZ˙ state, consistently observed after three flash illuminations, may result from slow, progressive protein dynamics that continuously reshape the energy landscape, thereby shifting the equilibrium positions of rapid, reversible chemical processes over time. Overall, our findings demonstrate that collective motions in the primary coordination sphere constitute an active, dynamic framework essential for the efficient execution of multi-electron catalysis under ambient conditions, while simultaneously achieving a high selectivity with irreversible nature required for effective 3O2 evolution.
en-copyright=
kn-copyright=
en-aut-name=IsobeHiroshi
en-aut-sei=Isobe
en-aut-mei=Hiroshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=SuzukiTakayoshi
en-aut-sei=Suzuki
en-aut-mei=Takayoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=SugaMichihiro
en-aut-sei=Suga
en-aut-mei=Michihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=ShenJian-Ren
en-aut-sei=Shen
en-aut-mei=Jian-Ren
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=YamaguchiKizashi
en-aut-sei=Yamaguchi
en-aut-mei=Kizashi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
affil-num=1
en-affil=
kn-affil=
affil-num=2
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
affil-num=3
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
affil-num=4
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
affil-num=5
en-affil=Center for Quantum Information and Quantum Biology, Osaka University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=11
cd-vols=
no-issue=1
article-no=
start-page=2
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250128
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Effect of temperature cycles on the sleep-like state in Hydra vulgaris
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Background Sleep is a conserved physiological phenomenon across species. It is mainly controlled by two processes: a circadian clock that regulates the timing of sleep and a homeostat that regulates the sleep drive. Even cnidarians, such as Hydra and jellyfish, which lack a brain, display sleep-like states. However, the manner in which environmental cues affect sleep-like states in these organisms remains unknown. In the present study, we investigated the effects of light and temperature cycles on the sleep-like state in Hydra vulgaris.
Results Our findings indicate that Hydra responds to temperature cycles with a difference of up to 5° C, resulting in decreased sleep duration under light conditions and increased sleep duration in dark conditions. Furthermore, our results reveal that Hydra prioritizes temperature changes over light as an environmental cue. Additionally, our body resection experiments show tissue-specific responsiveness in the generation ofthe sleep-like state under different environmental cues. Specifically, the upper body can generate the sleep-like state in response to a single environmental cue. In contrast, the lower body did not respond to 12-h light–dark cycles at a constant temperature.
Conclusions These findings indicate that both light and temperature influence the regulation of the sleep-like state in Hydra. Moreover, these observations highlight the existence of distinct regulatory mechanisms that govern patterns of the sleep-like state in brainless organisms, suggesting the potential involvement of specific regions for responsiveness of environmental cues for regulation of the sleep-like state.
en-copyright=
kn-copyright=
en-aut-name=SatoAya
en-aut-sei=Sato
en-aut-mei=Aya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=SekiguchiManabu
en-aut-sei=Sekiguchi
en-aut-mei=Manabu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=NakadaKoga
en-aut-sei=Nakada
en-aut-mei=Koga
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=YoshiiTaishi
en-aut-sei=Yoshii
en-aut-mei=Taishi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=ItohTaichi Q.
en-aut-sei=Itoh
en-aut-mei=Taichi Q.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
affil-num=1
en-affil=Faculty of Arts and Science, Kyushu University
kn-affil=
affil-num=2
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Graduate School of Systems Life Sciences, Kyushu University
kn-affil=
affil-num=4
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=5
en-affil=Faculty of Arts and Science, Kyushu University
kn-affil=
en-keyword=Hydra
kn-keyword=Hydra
en-keyword=Sleep
kn-keyword=Sleep
en-keyword=Temperature
kn-keyword=Temperature
en-keyword=Environmental cues
kn-keyword=Environmental cues
END
start-ver=1.4
cd-journal=joma
no-vol=15
cd-vols=
no-issue=1
article-no=
start-page=10819
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20241230
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A high-protein diet-responsive gut hormone regulates behavioral and metabolic optimization in Drosophila melanogaster
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Protein is essential for all living organisms; however, excessive protein intake can have adverse effects, such as hyperammonemia. Although mechanisms responding to protein deficiency are well-studied, there is a significant gap in our understanding of how organisms adaptively suppress excessive protein intake. In the present study, utilizing the fruit fly, Drosophila melanogaster, we discover that the peptide hormone CCHamide1 (CCHa1), secreted by enteroendocrine cells in response to a high-protein diet (HPD), is vital for suppressing overconsumption of protein. Gut-derived CCHa1 is received by a small subset of enteric neurons that produce short neuropeptide F, thereby modulating protein-specific satiety. Importantly, impairment of the CCHa1-mediated gut-enteric neuronal axis results in ammonia accumulation and a shortened lifespan under HPD conditions. Collectively, our findings unravel the crosstalk of gut hormone and neuronal pathways that orchestrate physiological responses to prevent and adapt to dietary protein overload.
en-copyright=
kn-copyright=
en-aut-name=YoshinariYuto
en-aut-sei=Yoshinari
en-aut-mei=Yuto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=NishimuraTakashi
en-aut-sei=Nishimura
en-aut-mei=Takashi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=YoshiiTaishi
en-aut-sei=Yoshii
en-aut-mei=Taishi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=KondoShu
en-aut-sei=Kondo
en-aut-mei=Shu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=TanimotoHiromu
en-aut-sei=Tanimoto
en-aut-mei=Hiromu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=KobayashiTomoe
en-aut-sei=Kobayashi
en-aut-mei=Tomoe
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=MatsuyamaMakoto
en-aut-sei=Matsuyama
en-aut-mei=Makoto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=NiwaRyusuke
en-aut-sei=Niwa
en-aut-mei=Ryusuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
affil-num=1
en-affil=Metabolic Regulation and Genetics, Institute for Molecular and Cellular Regulation, Gunma University
kn-affil=
affil-num=2
en-affil=Metabolic Regulation and Genetics, Institute for Molecular and Cellular Regulation, Gunma University
kn-affil=
affil-num=3
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science
kn-affil=
affil-num=5
en-affil=Graduate School of Life Sciences, Tohoku University
kn-affil=
affil-num=6
en-affil=Division of Molecular Genetics, Shigei Medical Research Institute
kn-affil=
affil-num=7
en-affil=Division of Molecular Genetics, Shigei Medical Research Institute
kn-affil=
affil-num=8
en-affil=Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=12
cd-vols=
no-issue=18
article-no=
start-page=2413456
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250320
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Cryo-EM Analysis of a Tri-Heme Cytochrome-Associated RC-LH1 Complex from the Marine Photoheterotrophic Bacterium Dinoroseobacter Shibae
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The reaction center-light harvesting 1 (RC-LH1) complex converts solar energy into electrical energy, driving the initiation of photosynthesis. The authors present a cryo-electron microscopy structure of the RC-LH1 isolated from a marine photoheterotrophic bacterium Dinoroseobacter shibae. The RC comprises four subunits, including a three-heme cytochrome (Cyt) c protein, and is surrounded by a closed LH ring composed of 17 pairs of antenna subunits. Notably, a novel subunit with an N-terminal “helix-turn-helix” motif embedded in the gap between the RC and the LH ring is identified. The purified RC-LH1 complex exhibits high stability in solutions containing Mg2+ or Ca2+. The periplasmic Cyt c2 is predicted to bind at the junction between the Cyt subunit and the membrane plane, enabling electron transfer from Cyt c2 to the proximal heme of the tri-heme Cyt, and subsequently to the special pair of bacteriochlorophylls. These findings provide structural insights into the efficient energy and electron transfer processes within a distinct type of RC-LH1, and shed light on evolutionary adaptations of photosynthesis.
en-copyright=
kn-copyright=
en-aut-name=WangWeiwei
en-aut-sei=Wang
en-aut-mei=Weiwei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=LiuYanting
en-aut-sei=Liu
en-aut-mei=Yanting
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=GuJiayi
en-aut-sei=Gu
en-aut-mei=Jiayi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=AnShaoya
en-aut-sei=An
en-aut-mei=Shaoya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=MaCheng
en-aut-sei=Ma
en-aut-mei=Cheng
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=GaoHaichun
en-aut-sei=Gao
en-aut-mei=Haichun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=JiaoNianzhi
en-aut-sei=Jiao
en-aut-mei=Nianzhi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=ShenJian‐Ren
en-aut-sei=Shen
en-aut-mei=Jian‐Ren
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=BeattyJohn Thomas
en-aut-sei=Beatty
en-aut-mei=John Thomas
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=KoblížekMichal
en-aut-sei=Koblížek
en-aut-mei=Michal
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
en-aut-name=ZhangXing
en-aut-sei=Zhang
en-aut-mei=Xing
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=11
ORCID=
en-aut-name=ZhengQiang
en-aut-sei=Zheng
en-aut-mei=Qiang
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=12
ORCID=
en-aut-name=ChenJing‐Hua
en-aut-sei=Chen
en-aut-mei=Jing‐Hua
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=13
ORCID=
affil-num=1
en-affil=College of Life Sciences, Zhejiang University
kn-affil=
affil-num=2
en-affil=State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University
kn-affil=
affil-num=3
en-affil=College of Life Sciences, Zhejiang University
kn-affil=
affil-num=4
en-affil=Department of Pathology of Sir Run Run Shaw Hospital, Department of Biophysics, Zhejiang University School of Medicine
kn-affil=
affil-num=5
en-affil=Department of Pathology of Sir Run Run Shaw Hospital, Department of Biophysics, Zhejiang University School of Medicine
kn-affil=
affil-num=6
en-affil=College of Life Sciences, Zhejiang University
kn-affil=
affil-num=7
en-affil=State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University
kn-affil=
affil-num=8
en-affil=Research Institute for Interdisciplinary Science, and Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=9
en-affil=Department of Microbiology & Immunology, University of British Columbia
kn-affil=
affil-num=10
en-affil=Laboratory of Anoxygenic Phototrophs, Institute of Microbiology, Czech Academy of Science
kn-affil=
affil-num=11
en-affil=Department of Pathology of Sir Run Run Shaw Hospital, Department of Biophysics, Zhejiang University School of Medicine
kn-affil=
affil-num=12
en-affil=State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University
kn-affil=
affil-num=13
en-affil=College of Life Sciences, Zhejiang University
kn-affil=
en-keyword=energy transfer
kn-keyword=energy transfer
en-keyword=photoheterotrophic bacteria
kn-keyword=photoheterotrophic bacteria
en-keyword=photosynthesis
kn-keyword=photosynthesis
en-keyword=reaction center
kn-keyword=reaction center
en-keyword=structure
kn-keyword=structure
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250710
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Neurotransmitter and Receptor Mapping in Drosophila Circadian Clock Neurons via T2A-GAL4 Screening
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The circadian neuronal network in the brain comprises central pacemaker neurons and associated input and output pathways. These components work together to generate coherent rhythmicity, synchronize with environmental time cues, and convey circadian information to downstream neurons that regulate behaviors such as the sleep/wake cycle. To mediate these functions, neurotransmitters and neuromodulators play essential roles in transmitting and modulating signals between neurons. In Drosophila melanogaster, approximately 240 brain neurons function as clock neurons. Previous studies have identified several neurotransmitters and neuromodulators, including the Pigment-dispersing factor (PDF) neuropeptide, along with their corresponding receptors in clock neurons. However, our understanding of the neurotransmitters and receptors involved in the circadian system remains incomplete. In this study, we conducted a T2A-GAL4-based screening for neurotransmitter and receptor genes expressed in clock neurons. We identified 2 neurotransmitter-related genes and 22 receptor genes. Notably, while previous studies had reported the expression of 6 neuropeptide receptor genes in large ventrolateral neurons (l-LNv), we also found that 14 receptor genes—including those for dopamine, serotonin, and γ-aminobutyric acid—are expressed in l-LNv neurons. These findings suggest that l-LNv neurons serve as key integrative hubs within the circadian network, receiving diverse external signals.
en-copyright=
kn-copyright=
en-aut-name=FukudaAyumi
en-aut-sei=Fukuda
en-aut-mei=Ayumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=SaitoAika
en-aut-sei=Saito
en-aut-mei=Aika
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=YoshiiTaishi
en-aut-sei=Yoshii
en-aut-mei=Taishi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=clock neurons
kn-keyword=clock neurons
en-keyword=neurotransmitter
kn-keyword=neurotransmitter
en-keyword=T2A-GAL4
kn-keyword=T2A-GAL4
en-keyword=immunostaining
kn-keyword=immunostaining
en-keyword=Drosophila
kn-keyword=Drosophila
END
start-ver=1.4
cd-journal=joma
no-vol=297
cd-vols=
no-issue=
article-no=
start-page=128540
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2026
dt-pub=202601
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Microfluidic paper-based analytical devices for antioxidant vitamins C and E in foods
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In this study, we developed microfluidic paper-based analytical devices (μPADs) for the determination of antioxidant vitamins. The proposed μPADs utilize the reduction of metal ions by hydrophilic and hydrophobic antioxidant vitamins, which is followed by colorimetric reactions with chelating reagents. Hydrophilic vitamin C reduces Fe(III) to Fe(II) and forms a stable Fe(II)-bathophenanthroline complex in an aqueous solution. By contrast, this complex is unstable in organic solvents, and hydrophobic vitamin E requires Fe(III) and bathophenanthroline to be replaced with Cu(II) and bathocuproine. In these results, the relationship between the logarithm of a vitamin's concentration and its color intensity was linear and ranged from 4.4 to 35 mg L−1 for ascorbic acid and 50–200 mg L−1 for α-tocopherol. The limits of detection, estimated from the standard deviation of blank samples, were 3.1 mg L−1 for ascorbic acid and either 27 mg L−1 (in hexane) or 48 mg L−1 (in ethanol) for α-tocopherol. The proposed method was used to quantify vitamin C in bell peppers, mandarin oranges, kiwifruit, and lemons, as well as vitamin E in almonds, almond milk, and dietary supplements. The results demonstrate the effectiveness of these μPADs for the practical analysis of antioxidant vitamins in food samples.
en-copyright=
kn-copyright=
en-aut-name=KawaharaMana
en-aut-sei=Kawahara
en-aut-mei=Mana
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=DanchanaKaewta
en-aut-sei=Danchana
en-aut-mei=Kaewta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=KanetaTakashi
en-aut-sei=Kaneta
en-aut-mei=Takashi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
affil-num=1
en-affil=Department of Chemistry, Okayama University
kn-affil=
affil-num=2
en-affil=Department of Chemistry, Okayama University
kn-affil=
affil-num=3
en-affil=Department of Chemistry, Okayama University
kn-affil=
en-keyword=Microfluidic paper-based analytical device
kn-keyword=Microfluidic paper-based analytical device
en-keyword=Vitamin C
kn-keyword=Vitamin C
en-keyword=Vitamin E
kn-keyword=Vitamin E
en-keyword=Antioxidant vitamin
kn-keyword=Antioxidant vitamin
en-keyword=Metal complex
kn-keyword=Metal complex
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250418
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Innovations in paper-based analytical devices and portable absorption photometers for onsite analysis
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Two types of analytical instruments and devices—one sophisticated high-performance instrument and another portable device—have been the focus of recent trends in analytical science. The necessity of point-of-care testing and onsite analysis has accelerated the advancement of high-performance, user-friendly portable analytical devices such as paper-based analytical devices (PADs) and light-emitting diode-based portable photometers. In this review, we summarize our achievements in the study of PADs and portable photometers. Several types of PADs are capable of performing titrations, metal ion analysis, and food analysis, while photometers, which consist of paired emitter–detector light-emitting diode (PEDD) photometers, are used for thiocyanate and herbicide analysis. These PADs and photometers permit the onsite determination of real environmental, body fluid, and food samples when an equipped laboratory is unavailable.
en-copyright=
kn-copyright=
en-aut-name=SeetasangSasikarn
en-aut-sei=Seetasang
en-aut-mei=Sasikarn
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=UmedaMika I.
en-aut-sei=Umeda
en-aut-mei=Mika I.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=RenJianchao
en-aut-sei=Ren
en-aut-mei=Jianchao
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=KanetaTakashi
en-aut-sei=Kaneta
en-aut-mei=Takashi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
affil-num=1
en-affil=Department of Chemistry, Faculty of Science and Technology, Thammasat University
kn-affil=
affil-num=2
en-affil=Department of Chemistry, Okayama University
kn-affil=
affil-num=3
en-affil=Department of Chemistry, Okayama University
kn-affil=
affil-num=4
en-affil=Department of Chemistry, Okayama University
kn-affil=
en-keyword=Point-of-care testing
kn-keyword=Point-of-care testing
en-keyword=Onsite analysis
kn-keyword=Onsite analysis
en-keyword=Paper-based analytical device
kn-keyword=Paper-based analytical device
en-keyword=Paired emitter–detector light-emitting diode
kn-keyword=Paired emitter–detector light-emitting diode
en-keyword=Photometer
kn-keyword=Photometer
en-keyword=Environmental analysis
kn-keyword=Environmental analysis
en-keyword=Food analysis
kn-keyword=Food analysis
END
start-ver=1.4
cd-journal=joma
no-vol=35
cd-vols=
no-issue=12
article-no=
start-page=2916
end-page=2926.e3
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202506
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Oxytocin facilitates human touch-induced play behavior in rats
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Pleasant touch sensations play a fundamental role in social bonding, yet the neural mechanisms underlying affinity-like behaviors remain poorly understood. Here, we demonstrate that juvenile-adolescent rats, which naturally engage in social play with peers characterized by rough-and-tumble interactions and 50 kHz ultrasonic vocalizations indicating pleasant sensations, develop a strong affinity for human hands through similar playful contact achieved by repeated tickling with human hands. Using this rat with tickling-induced high affinity for human hands, we discovered that repeated tickling mimicking rough-and-tumble play led to increased oxytocin receptor (OTR) expression in the ventrolateral part of the ventromedial hypothalamus (VMHvl). Inhibition of oxytocin signaling in the VMHvl reduced affinity-like behaviors from rats to human hands. These findings suggest that OTR neurons in VMHvl play an important role in the increase in affinity for human hands induced by pleasant touch sensation with human touch-induced play behavior. Based on retrograde and anterograde tracing studies examining the supraoptic nucleus (SON) and the paraventricular nucleus (PVN) as primary sources of oxytocin, we demonstrate that a subset of oxytocin fibers in the VMHvl originate from the SON, suggesting that affinity-like behavior from rats to human hands may be controlled by oxytocin signaling from magnocellular neurons. Together, this work advances our understanding of how oxytocin shapes social behavior and may inform the development of therapeutic strategies to promote positive social interactions.
en-copyright=
kn-copyright=
en-aut-name=HayashiHimeka
en-aut-sei=Hayashi
en-aut-mei=Himeka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=TateishiSayaka
en-aut-sei=Tateishi
en-aut-mei=Sayaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=InutsukaAyumu
en-aut-sei=Inutsuka
en-aut-mei=Ayumu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=MaejimaSho
en-aut-sei=Maejima
en-aut-mei=Sho
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=HagiwaraDaisuke
en-aut-sei=Hagiwara
en-aut-mei=Daisuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=SakumaYasuo
en-aut-sei=Sakuma
en-aut-mei=Yasuo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=OnakaTatsushi
en-aut-sei=Onaka
en-aut-mei=Tatsushi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=GrinevichValery
en-aut-sei=Grinevich
en-aut-mei=Valery
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=SakamotoHirotaka
en-aut-sei=Sakamoto
en-aut-mei=Hirotaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
affil-num=1
en-affil=Department of Biology, Faculty of Environmental, Life, Natural Science and Technology, Okayama University,
kn-affil=
affil-num=2
en-affil=Ushimado Marine Institute (UMI), Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Division of Brain and Neurophysiology, Department of Physiology, Jichi Medical University
kn-affil=
affil-num=4
en-affil=Ushimado Marine Institute (UMI), Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=5
en-affil=Department of Neuropeptide Research in Psychiatry, Central Institute of Mental Health, German Center for Psychiatry (DZPG), Medical Faculty Mannheim, University of Heidelberg
kn-affil=
affil-num=6
en-affil=Department of Anatomy and Neurobiology, Graduate School of Medical Sciences, Nippon Medical School
kn-affil=
affil-num=7
en-affil=Division of Brain and Neurophysiology, Department of Physiology, Jichi Medical University
kn-affil=
affil-num=8
en-affil=Department of Neuropeptide Research in Psychiatry, Central Institute of Mental Health, German Center for Psychiatry (DZPG), Medical Faculty Mannheim, University of Heidelberg
kn-affil=
affil-num=9
en-affil=Department of Biology, Faculty of Environmental, Life, Natural Science and Technology, Okayama University,
kn-affil=
en-keyword=tickling
kn-keyword=tickling
en-keyword=oxytocin
kn-keyword=oxytocin
en-keyword=oxytocin receptor
kn-keyword=oxytocin receptor
en-keyword=ventrolateral part of the ventromedial hypothalamus
kn-keyword=ventrolateral part of the ventromedial hypothalamus
en-keyword=affinity-like behaviors
kn-keyword=affinity-like behaviors
END
start-ver=1.4
cd-journal=joma
no-vol=13
cd-vols=
no-issue=
article-no=
start-page=100242
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202504
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Photochemical internalization of mRNA using a photosensitizer and nucleic acid carriers
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=mRNA has great potential for therapeutic applications because it can encode a variety of proteins and antigens, in addition to advantages over DNA in terms of gene expression without genomic integration, nuclear localization, or transcription. However, therapeutic applications of mRNA require safe and effective delivery into target cells. Therefore, we aimed to investigate photochemical internalization (PCI) as a promising strategy for delivering mRNA to target cells. In this strategy, mRNA is taken up into cells by endocytosis, accumulates in endosomes, and is released in a light-dependent manner from the endosomes using an endosome-accumulating photosensitizer, aluminum phthalocyanine disulfonate (AlPcS2a), in combination with nucleic acid carrier molecules. We compared the efficacy of various nucleic acid carriers, including branched polyethyleneimine (bPEI) and poly{N'-[N-(2-aminoethyl)-2-aminoethyl] aspartamide} (PAsp(DET)) under the same conditions for PCI-based mRNA delivery. Our results indicated that bPEI and PAsp(DET) at low N/P ratios exhibited efficient light-enhancement of mRNA expression by PCI with AlPcS2a. Notably, bPEI exhibited the highest light-dependent mRNA delivery among the carriers evaluated (including cationic polymers, cationic peptides, and lipids), whereas PAsp(DET) showed promise for clinical use because of its lower toxicity compared with bPEI. This PCI strategy allows effective cytosolic mRNA delivery at low N/P ratios, thereby reducing cationic carrier molecule-induced cytotoxicity. This method allows spatiotemporal control of protein expression and holds potential for novel light-dependent mRNA therapies. Overall, this study provided valuable insights into optimizing mRNA delivery systems for therapeutic applications.
en-copyright=
kn-copyright=
en-aut-name=MaemotoHayaki
en-aut-sei=Maemoto
en-aut-mei=Hayaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=SuzakiRyohei
en-aut-sei=Suzaki
en-aut-mei=Ryohei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=WatanabeKazunori
en-aut-sei=Watanabe
en-aut-mei=Kazunori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=ItakaKeiji
en-aut-sei=Itaka
en-aut-mei=Keiji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=OhtsukiTakashi
en-aut-sei=Ohtsuki
en-aut-mei=Takashi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
affil-num=1
en-affil=Department of Interdisciplinary Science and Engineering in Health Systems, Okayama University
kn-affil=
affil-num=2
en-affil=Department of Interdisciplinary Science and Engineering in Health Systems, Okayama University
kn-affil=
affil-num=3
en-affil=Department of Interdisciplinary Science and Engineering in Health Systems, Okayama University
kn-affil=
affil-num=4
en-affil=Department of Biofunction Research, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
kn-affil=
affil-num=5
en-affil=Department of Interdisciplinary Science and Engineering in Health Systems, Okayama University
kn-affil=
en-keyword=mRNA
kn-keyword=mRNA
en-keyword=Photochemical internalization
kn-keyword=Photochemical internalization
en-keyword=Photosensitizer
kn-keyword=Photosensitizer
END
start-ver=1.4
cd-journal=joma
no-vol=40
cd-vols=
no-issue=2
article-no=
start-page=99
end-page=108
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250620
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Evaluation of Drying Process of a Slurry Droplet Containing Water-soluble Polymer
kn-title=水溶性高分子含有スラリー液滴乾燥過程の評価
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The granulation process of a slurry droplet containing a water-soluble polymer in a spray dryer is investigated. Although there have been many studies on the drying behavior of a single-component slurry droplet, there have been few reports for a multicomponent slurry droplet. This is due to the complexity and difficulty in evaluating the drying behavior of a multicomponent slurry droplet. Therefore, for the production of granules from multicomponent materials by a spray dryer, its operating conditions are usually determined by trial and error. To optimize the practical granule production process, the drying behavior of multicomponent slurry droplets should be studied. In this study, the drying behavior of a silica slurry droplet containing polyvinyl alcohol (PVA) is investigated. The drying behavior of a droplet suspended on the tip of a needle was observed. The effect of the volume fraction of PVA on the drying behavior and the morphology of a dried granule is studied. The effect of drying condition on the granule formation process is also investigated. As a result, the structure of dried granules was strongly influenced by PVA concentration. Segregation of PVA in the dried granules was observed. Based on the results, the drying process diagram is presented.
en-copyright=
kn-copyright=
en-aut-name=NakasoKoichi
en-aut-sei=Nakaso
en-aut-mei=Koichi
kn-aut-name=中曽浩一
kn-aut-sei=中曽
kn-aut-mei=浩一
aut-affil-num=1
ORCID=
en-aut-name=YamashitaDaichi
en-aut-sei=Yamashita
en-aut-mei=Daichi
kn-aut-name=山下大智
kn-aut-sei=山下
kn-aut-mei=大智
aut-affil-num=2
ORCID=
en-aut-name=AoyamaYutaro
en-aut-sei=Aoyama
en-aut-mei=Yutaro
kn-aut-name=青山祐太郎
kn-aut-sei=青山
kn-aut-mei=祐太郎
aut-affil-num=3
ORCID=
en-aut-name=MinoYasushi
en-aut-sei=Mino
en-aut-mei=Yasushi
kn-aut-name=三野泰志
kn-aut-sei=三野
kn-aut-mei=泰志
aut-affil-num=4
ORCID=
en-aut-name=GotohKuniaki
en-aut-sei=Gotoh
en-aut-mei=Kuniaki
kn-aut-name=後藤邦彰
kn-aut-sei=後藤
kn-aut-mei=邦彰
aut-affil-num=5
ORCID=
affil-num=1
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=岡山大学学術研究院環境生命自然科学学域
affil-num=2
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=岡山大学大学院自然科学研究科
affil-num=3
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=岡山大学大学院自然科学研究科
affil-num=4
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=岡山大学学術研究院環境生命自然科学学域
affil-num=5
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=岡山大学学術研究院環境生命自然科学学域
en-keyword=Spray Dryer
kn-keyword=Spray Dryer
en-keyword=Drying
kn-keyword=Drying
en-keyword=Droplet
kn-keyword=Droplet
en-keyword=Slurry
kn-keyword=Slurry
en-keyword=Water-Soluble Polymer
kn-keyword=Water-Soluble Polymer
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=e202510319
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250626
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Development of a Vinylated Cyclic Allene: A Fleeting Strained Diene for the Diels–Alder Reaction
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Fleeting molecules possessing strained multiple bonds are important components in organic synthesis due to their ability to undergo various chemical reactions driven by the release of strain energy. Although the use of strained π-bonds as 2π components, represented by dienophiles in Diels–Alder reactions, has been well studied, “the strained diene (4π component) approach” for molecular construction remains underexplored. Herein, we report the design of a vinyl cyclic allene (1-vinyl-1,2-cyclohexadiene) as a highly reactive strained diene and the development of its Diels–Alder reactions. Experimental and computational studies of vinyl cyclic allenes revealed that this diene system undergoes cycloaddition with dienophiles regio- and stereoselectively under mild reaction conditions. These studies also provide insight into the reactivity and selectivity of the system. The strained diene approach enables the convergent construction of polycyclic molecules through bond disconnections distinct from conventional retrosynthetic analysis, thus offering an efficient strategy for the assembly of functional molecules.
en-copyright=
kn-copyright=
en-aut-name=MizoguchiHaruki
en-aut-sei=Mizoguchi
en-aut-mei=Haruki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=ObataTakumi
en-aut-sei=Obata
en-aut-mei=Takumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=HiraiTaiki
en-aut-sei=Hirai
en-aut-mei=Taiki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=KomatsuManaka
en-aut-sei=Komatsu
en-aut-mei=Manaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=SakakuraAkira
en-aut-sei=Sakakura
en-aut-mei=Akira
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
affil-num=1
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=5
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Activation strain model
kn-keyword=Activation strain model
en-keyword=Carbocycles
kn-keyword=Carbocycles
en-keyword=Diels–Alder reaction
kn-keyword=Diels–Alder reaction
en-keyword=Strained diene
kn-keyword=Strained diene
en-keyword=Vinylated cyclic allene
kn-keyword=Vinylated cyclic allene
END
start-ver=1.4
cd-journal=joma
no-vol=7
cd-vols=
no-issue=1
article-no=
start-page=e000923
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250427
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Reversible cerebral vasoconstriction syndrome in idiopathic multicentric Castleman disease under treatment with tocilizumab
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Background Idiopathic multicentric Castleman disease (iMCD) is a rare polyclonal lymphoproliferative disorder characterised by systemic inflammation resulting from overproduction of interleukin 6 (IL-6). While iMCD primarily affects the lymph nodes and related tissues, it can also rarely involve the central nervous system.
Case presentation We report the case of a 58-year-old female patient with at least a 3-year history of iMCD, who experienced acute thunderclap headaches due to reversible cerebral vasoconstriction syndrome (RCVS). RCVS occurred 3 months after initiating treatment with tocilizumab, a humanised anti-IL-6 receptor monoclonal antibody, and was accompanied by focal cortical subarachnoid haemorrhage (SAH). Elevated IL-6 levels were found in both serum and cerebrospinal fluid. MR angiography revealed multiple diffuse stenotic lesions in the bilateral middle and posterior cerebral arteries, which, along with bilateral cerebral oedema, resolved within 3 months. The diffuse nature of the cerebral vasospasm and the presence of bilateral brain oedema suggested that cerebral vasospasm was due to RCVS rather than SAH.
Conclusions In patients with Castleman disease, RCVS may occur due to IL-6-dependent chronic cerebral vascular inflammation, either as a primary condition or as a complication of tocilizumab treatment.
en-copyright=
kn-copyright=
en-aut-name=KamimuraNaoya
en-aut-sei=Kamimura
en-aut-mei=Naoya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=UedaNaohisa
en-aut-sei=Ueda
en-aut-mei=Naohisa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=KimuraKatsuo
en-aut-sei=Kimura
en-aut-mei=Katsuo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=NishikoriAsami
en-aut-sei=Nishikori
en-aut-mei=Asami
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=SatoYasuharu
en-aut-sei=Sato
en-aut-mei=Yasuharu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=KishidaHitaru
en-aut-sei=Kishida
en-aut-mei=Hitaru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=TanakaFumiaki
en-aut-sei=Tanaka
en-aut-mei=Fumiaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
affil-num=1
en-affil=Department of Neurology, Yokohama City University Medical Center
kn-affil=
affil-num=2
en-affil=Department of Neurology, Yokohama City University Medical Center
kn-affil=
affil-num=3
en-affil=Department of Neurology, Yokohama City University Medical Center
kn-affil=
affil-num=4
en-affil=
kn-affil=
affil-num=5
en-affil=
kn-affil=
affil-num=6
en-affil=Department of Neurology, Yokohama City University Medical Center
kn-affil=
affil-num=7
en-affil=Department of Neurology and Stroke Medicine, Yokohama City University Graduate School of Medicine
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250224
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Towards SBOM-based Access Control for Transparent and Explicit Program Execution
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Although a Software Bill of Materials (SBOM) plays a key role in software transparency, inconsistencies in SBOM descriptions can undermine its value. To address this, we propose a novel approach to program access control, SBOMAC, which leverages Mandatory Access Control (MAC) systems to ensure transparent and explicit program execution. In this study, we identify the challenges associated with implementing this approach and present preliminary investigation results to address these challenges.
en-copyright=
kn-copyright=
en-aut-name=ShimamotoYuta
en-aut-sei=Shimamoto
en-aut-mei=Yuta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=UekawaHiroyuki
en-aut-sei=Uekawa
en-aut-mei=Hiroyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=AkiyamaMitsuaki
en-aut-sei=Akiyama
en-aut-mei=Mitsuaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=YamauchiToshihiro
en-aut-sei=Yamauchi
en-aut-mei=Toshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
affil-num=1
en-affil=Okayama University
kn-affil=
affil-num=2
en-affil=NTT Social Informatics Laboratories
kn-affil=
affil-num=3
en-affil=NTT Social Informatics Laboratories
kn-affil=
affil-num=4
en-affil=Okayama University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=91
cd-vols=
no-issue=946
article-no=
start-page=24-00128
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=2025
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Development of a guideline proposal system for correcting cutting conditions based on the overhang length of ball end-mills
kn-title=ボールエンドミルの突き出し長さに応じた切削条件補正システムの開発
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In the field of die and mold machining, determining appropriate cutting conditions is crucial. Factors such as tool geometry, machining path, work material characteristics, machining efficiency, and finishing accuracy must be taken into consideration. However, the current method of determining cutting conditions relies heavily on the intuition and experience of skilled engineers, and there is a need for a system to replace such knowledge. One of the critical factors affecting machining accuracy and efficiency is the tool overhang length, which is directly related to tool geometry. Unfortunately, there is no clear guideline for its determination. In a previous study, researchers developed a system to quickly derive cutting conditions using a data mining method and Random Forest Regression (RFR) applied to a tool catalog database. In this study, we constructed a new cutting condition compensation system based on the existing model, which accounts for the tool overhang length. The results of cutting experiments under high aspect ratio overhang lengths confirm that the correction coefficients proposed by the system are significant.
en-copyright=
kn-copyright=
en-aut-name=KODAMAHiroyuki
en-aut-sei=KODAMA
en-aut-mei=Hiroyuki
kn-aut-name=児玉紘幸
kn-aut-sei=児玉
kn-aut-mei=紘幸
aut-affil-num=1
ORCID=
en-aut-name=MORIYAYuki
en-aut-sei=MORIYA
en-aut-mei=Yuki
kn-aut-name=守屋祐輝
kn-aut-sei=守屋
kn-aut-mei=祐輝
aut-affil-num=2
ORCID=
en-aut-name=MORIMOTOTatsuo
en-aut-sei=MORIMOTO
en-aut-mei=Tatsuo
kn-aut-name=盛元達雄
kn-aut-sei=盛元
kn-aut-mei=達雄
aut-affil-num=3
ORCID=
en-aut-name=OHASHIKazuhito
en-aut-sei=OHASHI
en-aut-mei=Kazuhito
kn-aut-name=大橋一仁
kn-aut-sei=大橋
kn-aut-mei=一仁
aut-affil-num=4
ORCID=
affil-num=1
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=岡山大学 学術研究院環境生命自然科学学域
affil-num=2
en-affil=Graduate school of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=岡山大学 大学院環境生命自然科学研究科
affil-num=3
en-affil=Graduate school of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=岡山大学 大学院環境生命自然科学研究科
affil-num=4
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=岡山大学 学術研究院環境生命自然科学学域
en-keyword=Data mining
kn-keyword=Data mining
en-keyword=Cutting conditions
kn-keyword=Cutting conditions
en-keyword=Machine learning
kn-keyword=Machine learning
en-keyword=Random Forest Regression
kn-keyword=Random Forest Regression
en-keyword=Ball end-mill
kn-keyword=Ball end-mill
en-keyword=Tool overhang length
kn-keyword=Tool overhang length
END
start-ver=1.4
cd-journal=joma
no-vol=19
cd-vols=
no-issue=3
article-no=
start-page=337
end-page=345
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250505
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Study on the Grinding Temperature of Workpiece in Side Plunge Grinding Process
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Grinding is used to finish thrust metal attachment parts, such as crankshafts, which have both journal and thrust surfaces. In side plunge grinding, a thrust surface and a cylindrical surface of a shaft workpiece with collars are finished in a single plunge grinding process. However, the surface quality near the ground internal corner, where grinding fluid may not penetrate, can deteriorate, causing high residual stress and cracks owing to grinding heat. While it has been reported that quality issues at the inner corners of the ground surface can be mitigated by reducing the grinding point temperature through efficient cooling fluid supply, the mechanisms of grinding phenomena and heat generation in side plunge grinding are not yet fully understood. In this study, the variations in the grinding temperature at the thrust surface of a workpiece with a collar were experimentally investigated using a wire/workpiece thermocouple to clarify these phenomena. The results revealed a significant increase in the grinding temperature at the corners of the grinding zone. However, it slightly decreases as the thermocouple output approaches the center of the workpiece, indicating a slight effect of the grinding speed. The surface temperature of the workpiece in side plunge grinding is primarily influenced by the wheel depth-of-cut in the thrust direction. Additionally, the effect of workpiece rotational speed and grinding infeed speed on temperature distribution has been demonstrated.
en-copyright=
kn-copyright=
en-aut-name=GaoLingxiao
en-aut-sei=Gao
en-aut-mei=Lingxiao
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=KuidaMotoki
en-aut-sei=Kuida
en-aut-mei=Motoki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=KodamaHiroyuki
en-aut-sei=Kodama
en-aut-mei=Hiroyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=OhashiKazuhito
en-aut-sei=Ohashi
en-aut-mei=Kazuhito
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=grinding
kn-keyword=grinding
en-keyword=thrust surface
kn-keyword=thrust surface
en-keyword=grinding temperature
kn-keyword=grinding temperature
en-keyword=thermocouple
kn-keyword=thermocouple
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=85
end-page=104
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2022
dt-pub=20220812
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=CyNER: Information Extraction from Unstructured Text of CTI Sources with Noncontextual IOCs
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Cybersecurity threats have been increasing and growing more sophisticated year by year. In such circumstances, gathering Cyber Threat Intelligence (CTI) and following up with up-to-date threat information is crucial. Structured CTI such as Structured Threat Information eXpression (STIX) is particularly useful because it can automate security operations such as updating FW/IDS rules and analyzing attack trends. However, as most CTIs are written in natural language, manual analysis with domain knowledge is required, which becomes quite time-consuming.
In this work, we propose CyNER, a method for automatically structuring CTIs and converting them into STIX format. CyNER extracts named entities in the context of CTI and then extracts the relations between named entities and IOCs in order to convert them into STIX. In addition, by using key phrase extraction, CyNER can extract relations between IOCs that lack contextual information, such as those listed at the bottom of a CTI, and named entities. We describe our design and implementation of CyNER and demonstrate that it can extract named entities with the F-measure of 0.80 and extract relations between named entities and IOCs with the maximum accuracy of 81.6%. Our analysis of structured CTI showed that CyNER can extract IOCs that are not included in existing reputation sites, and that it can automatically extract IOCs that have been exploited for a long time and across multiple attack groups. CyNER is thus expected to contribute to the efficiency of CTI analysis.
en-copyright=
kn-copyright=
en-aut-name=FujiiShota
en-aut-sei=Fujii
en-aut-mei=Shota
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=KawaguchiNobutaka
en-aut-sei=Kawaguchi
en-aut-mei=Nobutaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=ShigemotoTomohiro
en-aut-sei=Shigemoto
en-aut-mei=Tomohiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=YamauchiToshihiro
en-aut-sei=Yamauchi
en-aut-mei=Toshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Research & Development Group, Hitachi, Ltd.
kn-affil=
affil-num=3
en-affil=Research & Development Group, Hitachi, Ltd.
kn-affil=
affil-num=4
en-affil=Faculty of Natural Science and Technology, Okayama University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=292
end-page=297
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2023
dt-pub=20231127
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Analyzing Post-injection Attacker Activities in IoT Devices: A Comprehensive Log Analysis Approach
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=With the continuous proliferation of Internet of Things (IoT) devices, malware threats that specifically target these devices continue to increase. The urgent need for robust security measures is predicated on a comprehensive understanding of the behavioral patterns of IoT malware. However, previous studies have often overlooked the analysis of command sequences in Telnet logs. This study bridges this research gap by examining the post-injection behaviors of attackers. By analyzing a vast dataset comprising more than ten million logs collected from an IoT honeypot, we reveal three distinct post-injection activity patterns, each with unique characteristics. These patterns provide pivotal insights that not only help distinguish between legitimate operations and attempted attacks, but also drive the development of robust cybersecurity measures that effectively deter such behaviors. The nuances discovered in this study contribute significantly to IoT security by enhancing our understanding of malware tactics and informing targeted defense strategies.
en-copyright=
kn-copyright=
en-aut-name=VictorHervet
en-aut-sei=Victor
en-aut-mei=Hervet
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=KobayashiSatoru
en-aut-sei=Kobayashi
en-aut-mei=Satoru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=YamauchiToshihiro
en-aut-sei=Yamauchi
en-aut-mei=Toshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
affil-num=1
en-affil=Okayama University
kn-affil=
affil-num=2
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Malware analysis
kn-keyword=Malware analysis
en-keyword=IoT
kn-keyword=IoT
en-keyword=Honeypot
kn-keyword=Honeypot
en-keyword=Log analysis
kn-keyword=Log analysis
en-keyword=Attack patterns
kn-keyword=Attack patterns
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=274
end-page=278
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2023
dt-pub=20231127
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Prevention Method for Stack Buffer Overflow Attack in TA Command Calls in OP-TEE
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=TEE systems provide normal world and secure world. It is impossible to gain access to the secure world directly from the normal world. However, vulnerabilities in the secure world can cause attacks to compromise the secure world. In this study, we investigate the security features applied to trusted applications (TA) in OP-TEE and clarify the lack of protection against stack buffer overflow in TA command calls. We also propose a method for preventing attacks that exploit stack buffer overflows in TA command calls. In addition, the experimental results show that attacks on the vulnerable TAs can be prevented with the proposed method and the overhead can be evaluated.
en-copyright=
kn-copyright=
en-aut-name=ShibaKaito
en-aut-sei=Shiba
en-aut-mei=Kaito
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=KuzunoHiroki
en-aut-sei=Kuzuno
en-aut-mei=Hiroki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=YamauchiToshihiro
en-aut-sei=Yamauchi
en-aut-mei=Toshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Engineering, Kobe University
kn-affil=
affil-num=3
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Trusted execution environment
kn-keyword=Trusted execution environment
en-keyword=Stack overflow prevention method
kn-keyword=Stack overflow prevention method
en-keyword=System security
kn-keyword=System security
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=161
end-page=167
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2023
dt-pub=20231128
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Evaluation of Effectiveness of MAC Systems Based on LSM for Protecting IoT Devices
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Numerous active attacks targeting Internet of Things (IoT) devices exist. They exploit the latest vulnerabilities discovered in IoT devices. Therefore, Mandatory Access Control (MAC) systems based on Linux Security Modules (LSM), such as SELinux and AppArmor, are effective security features for IoT devices because they can mitigate the impact of attacks even if software vulnerabilities are discovered. However, they are not adopted by most IoT devices. The existing approaches are insufficient for investigating the causes of this problem.In this study, we comprehensively investigated what factors can affect the applicability of MAC systems based on LSM in IoT devices. We focused on how frequently cases can occur where they cannot be adopted, owing to each factor. To increase the comprehensiveness of the factors affecting the adoption of MAC systems in IoT devices, we investigated the kernel version, CPU architecture, and support for BusyBox in addition to the investigation of resources, which conducted in previous studies. We also conducted simulated experiments based on the attack method of Mirai to investigate whether MAC systems can protect against IoT malware. Finally, we discuss the impact of a combination of these factors on MAC system adoption.
en-copyright=
kn-copyright=
en-aut-name=MikiMasato
en-aut-sei=Miki
en-aut-mei=Masato
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=YamauchiToshihiro
en-aut-sei=Yamauchi
en-aut-mei=Toshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=KobayashiSatoru
en-aut-sei=Kobayashi
en-aut-mei=Satoru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Mandatory Access Control System
kn-keyword=Mandatory Access Control System
en-keyword=IoT Security
kn-keyword=IoT Security
en-keyword=Linux Security Modules
kn-keyword=Linux Security Modules
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=236
end-page=244
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2023
dt-pub=20230623
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Non Real-Time Data Transmission Performance Analysis of PROFINET for Assuring Data Transmission Quality
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The industrial Ethernet PROFINET supports three different data transmission modes: isochronous real-time (IRT), real-time (RT), and non real-time (NRT) transmitting data requiring hard, soft, and no real-time performances, respectively. The data transmission latency in the NRT increased with the amount of data transmission in the IRT, RT, and NRT. Therefore, the quality of data transmission in NRT may degrade as the amount of data transmission in IRT, RT, and NRT increases. In this study, we derived the average data transmission latency in an NRT with data transmission in IRT and RT by applying stochastic processes. This allowed us to maintain the quality of data transmission in the NRT by adjusting the number of devices connected to the network and the number of applications transmitting data in the NRT so that the average latency of data in the NRT does not exceed a certain value.
en-copyright=
kn-copyright=
en-aut-name=NorimatsuTakashi
en-aut-sei=Norimatsu
en-aut-mei=Takashi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=YamauchiToshihiro
en-aut-sei=Yamauchi
en-aut-mei=Toshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Industrial Ethernet
kn-keyword=Industrial Ethernet
en-keyword=PROFINET
kn-keyword=PROFINET
en-keyword=Non Real Time
kn-keyword=Non Real Time
en-keyword=Real-Time
kn-keyword=Real-Time
en-keyword=Isochronous Real Time
kn-keyword=Isochronous Real Time
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=267
end-page=273
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2023
dt-pub=20231127
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Supporting Multiple OS Types on Estimation of System Call Hook Point by Virtual Machine Monitor
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Methods to hook system calls issued by a guest operating system (OS) running on a virtual machine using a virtual machine monitor are proposed. The address of the hook point is derived from the guest OS’s source code and established prior to the kernel startup process. Due to changes in system call processing in OS updates and address space layout randomization, the addresses of these hook points cannot always be pre-determined before the kernel startup process. To address this challenge, a method for estimating the system call hook point is proposed in Linux by analyzing the guest OS memory on x86-64 CPUs rather than pre-calculation. Although the method supports Linux, the method can be extended to support other OS types. In this paper, we propose a method to extend the method to support additional OSes. Specifically, we present analysis results and a novel method for estimating hook points on FreeBSD, NetBSD, and OpenBSD. The effectiveness of our proposed method is also demonstrated through evaluation.
en-copyright=
kn-copyright=
en-aut-name=SatoMasaya
en-aut-sei=Sato
en-aut-mei=Masaya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=OmoriTaku
en-aut-sei=Omori
en-aut-mei=Taku
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=YamauchiToshihiro
en-aut-sei=Yamauchi
en-aut-mei=Toshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=TaniguchiHideo
en-aut-sei=Taniguchi
en-aut-mei=Hideo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
affil-num=1
en-affil=Okayama Prefectural University
kn-affil=
affil-num=2
en-affil=Okayama Prefectural University
kn-affil=
affil-num=3
en-affil=Okayama University
kn-affil=
affil-num=4
en-affil=Okayama University
kn-affil=
en-keyword=system call
kn-keyword=system call
en-keyword=virtual machine monitor
kn-keyword=virtual machine monitor
en-keyword=operating system
kn-keyword=operating system
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=107
end-page=119
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250401
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Investigation Towards Detecting Landing Websites for Fake Japanese Shopping Websites
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Recently, the number of victims of fake shopping websites that imitate legitimate ones to defraud people has been increasing. It has been shown that fake shopping websites use legitimate defaced landing websites as their leading paths. Therefore, if the detection of landing websites for fake shopping websites can be achieved, it can assist in addressing these websites and reduce the opportunities for users to be redirected to fake shopping websites. In this study, we collect and investigate existing landing websites that redirect users to fake Japanese shopping websites and identify effective features for detecting them. We identified effective search terms for collecting landing websites for fake Japanese shopping websites and found that using Google searches with queries of top-level domain and product names was effective. We also investigated the conditions for activating analytical evasion functions in the collected landing websites for fake Japanese shopping websites and clarified the differences in search results between crawlers and users.
en-copyright=
kn-copyright=
en-aut-name=MichishitaDaigo
en-aut-sei=Michishita
en-aut-mei=Daigo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=KobayashiSatoru
en-aut-sei=Kobayashi
en-aut-mei=Satoru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=YamauchiToshihiro
en-aut-sei=Yamauchi
en-aut-mei=Toshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
affil-num=1
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250623
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Transformation of α,β-Unsaturated Aldehydes with a Small Amount of Electricity: Cyanosilylation, Isomerization, and Nucleophilic Addition
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=An electrochemical method was developed to convert α,β-unsaturated aldehydes into carboxylic acid derivatives via cyanosilylation, isomerization, and nucleophilic addition. This reaction is more sustainable than the usual electrochemical organic reaction because this reaction proceeds catalytically with active species generated by a very small amount of electricity. Furthermore, scale-up synthesis with a flow reactor has been achieved.
en-copyright=
kn-copyright=
en-aut-name=FujiiMayu
en-aut-sei=Fujii
en-aut-mei=Mayu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=UenoNanaho
en-aut-sei=Ueno
en-aut-mei=Nanaho
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=MitsudoKoichi
en-aut-sei=Mitsudo
en-aut-mei=Koichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=SatoEisuke
en-aut-sei=Sato
en-aut-mei=Eisuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=SugaSeiji
en-aut-sei=Suga
en-aut-mei=Seiji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
affil-num=1
en-affil=Division of Applied Chemistry, Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Division of Applied Chemistry, Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Division of Applied Chemistry, Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Division of Applied Chemistry, Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=5
en-affil=Division of Applied Chemistry, Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=166
cd-vols=
no-issue=8
article-no=
start-page=bqaf102
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250605
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Neuromedin U Deficiency Disrupts Daily Testosterone Fluctuation and Reduces Wheel-running Activity in Rats
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The objective of this study was to elucidate the role of endogenous Neuromedin U (NMU) in rats by performing NMU knockout (KO). Male, but not female NMU KO rats exhibited decreased wheel-running activity vs wildtype (WT), although overall home cage activity was not affected. Plasma testosterone in WT rats varied significantly over the course of a day, with a peak at ZT1 and a nadir at ZT18, whereas in NMU KO rats testosterone remained stable throughout the day. Chronic administration of testosterone restored wheel-running activity in NMU KO rats to the same level as in WT rats, suggesting that the decrease in wheel-running activity in NMU KO rats is due to the disruption of the diurnal change of testosterone. Accordingly, expression of the luteinizing hormone beta subunit (Lhb) mRNA in the pars distalis of anterior pituitary was significantly lower in NMU KO rats; immunostaining revealed that the size of luteinizing hormone (LH)–expressing cells was also relatively small in those animals. In the brain of male WT rats, Nmu was highly expressed in the pars tuberalis, and the NMU receptor Nmur2 was highly expressed in the ependymal cell layer of the third ventricle. This study reveals a novel function of NMU and indicates that endogenous NMU in rats plays a role in the regulation of motivated activity via regulation of testosterone.
en-copyright=
kn-copyright=
en-aut-name=OtsukaMai
en-aut-sei=Otsuka
en-aut-mei=Mai
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=TakeuchiYu
en-aut-sei=Takeuchi
en-aut-mei=Yu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=MoriyamaMaho
en-aut-sei=Moriyama
en-aut-mei=Maho
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=EgoshiSakura
en-aut-sei=Egoshi
en-aut-mei=Sakura
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=GotoYuki
en-aut-sei=Goto
en-aut-mei=Yuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=GuTingting
en-aut-sei=Gu
en-aut-mei=Tingting
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=KimuraAtsushi P
en-aut-sei=Kimura
en-aut-mei=Atsushi P
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=HaraguchiShogo
en-aut-sei=Haraguchi
en-aut-mei=Shogo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=YoshiiTaishi
en-aut-sei=Yoshii
en-aut-mei=Taishi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
en-aut-name=TakeuchiSakae
en-aut-sei=Takeuchi
en-aut-mei=Sakae
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=
en-aut-name=MatsuyamaMakoto
en-aut-sei=Matsuyama
en-aut-mei=Makoto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=11
ORCID=
en-aut-name=BentleyGeorge E
en-aut-sei=Bentley
en-aut-mei=George E
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=12
ORCID=
en-aut-name=AizawaSayaka
en-aut-sei=Aizawa
en-aut-mei=Sayaka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=13
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Department of Biology, Faculty of Science, Okayama University
kn-affil=
affil-num=5
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=6
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=7
en-affil=Department of Biological Sciences, Faculty of Science, Hokkaido University
kn-affil=
affil-num=8
en-affil=Department of Biochemistry, Showa University School of Medicine
kn-affil=
affil-num=9
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=10
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
affil-num=11
en-affil=Division of Molecular Genetics, Shigei Medical Research Institute
kn-affil=
affil-num=12
en-affil=Department of Integrative Biology and Helen Wills Neuroscience Institute, University of California at Berkeley
kn-affil=
affil-num=13
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Neuromedin U
kn-keyword=Neuromedin U
en-keyword=rat
kn-keyword=rat
en-keyword=motivation
kn-keyword=motivation
en-keyword=activity
kn-keyword=activity
en-keyword=testosterone
kn-keyword=testosterone
en-keyword=wheel-running
kn-keyword=wheel-running
END
start-ver=1.4
cd-journal=joma
no-vol=137
cd-vols=
no-issue=23
article-no=
start-page=235104
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250617
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Imaging valley-vortex edge modes in a phononic crystal at ultrahigh frequencies
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We perform optical measurements and numerical simulations of guided phonon propagation in novel topological phononic crystal structures at ultrahigh frequencies. The structures support valley-polarized states that exhibit an energy vortex nature and propagate with high efficiency at domain boundaries because backscattering is suppressed due to conservation of time reversal symmetry. We extract frequency- and time-resolved spatial mode patterns and k-space images, together with dispersion relations. We investigate the conditions required for robust propagation along interfaces and thereby observe very high efficiency waveguiding.
en-copyright=
kn-copyright=
en-aut-name=OtsukaP. H.
en-aut-sei=Otsuka
en-aut-mei=P. H.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=TomodaM.
en-aut-sei=Tomoda
en-aut-mei=M.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=HatanakaD.
en-aut-sei=Hatanaka
en-aut-mei=D.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=YamaguchiH.
en-aut-sei=Yamaguchi
en-aut-mei=H.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=TsurutaK.
en-aut-sei=Tsuruta
en-aut-mei=K.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=MatsudaO.
en-aut-sei=Matsuda
en-aut-mei=O.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
affil-num=1
en-affil=Division of Applied Physics, Graduate School of Engineering, Hokkaido University
kn-affil=
affil-num=2
en-affil=Division of Applied Physics, Graduate School of Engineering, Hokkaido University
kn-affil=
affil-num=3
en-affil=NTT Basic Research Laboratories, NTT Corporation
kn-affil=
affil-num=4
en-affil=NTT Basic Research Laboratories, NTT Corporation
kn-affil=
affil-num=5
en-affil=Department of Electrical and Electronic Engineering, Okayama University
kn-affil=
affil-num=6
en-affil=Division of Applied Physics, Graduate School of Engineering, Hokkaido University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250616
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Leg-biting fights reduce the number of sperm transferred by the loser and in draws in Zophobas atratus
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Intra-sexual selection has been observed across a wide range of species. Male-male combat can not only determine the winner and loser but also affect subsequent reproductive success. The effects of combat outcomes on reproduction are thought to depend on the reproductive ecology of the target species. However, to our knowledge, studies examining the impact of combat outcomes on sperm competition and fitness remain limited. In the giant mealworm (Zophobas atratus), male’s combat involves biting each other's hind legs. Females mated to the losers of leg-biting contests had significantly fewer eggs and fewer offspring than females mated to males that were not in a contest. Possible explanations for this fitness reduction include the inability of males to transfer sperm effectively due to the combat outcome or the inability of their sperm to fertilize eggs due to female cryptic sperm choice, and the mechanisms underlying this reduction remain unclear. Previous studies have observed distorted mating postures in losing males, leading us to hypothesize that leg-biting during combat might affect sperm transfer. To test this, we allowed uncontested males, winners, losers, and males with a draw outcome to mate with females and compared the number of sperm within the female’s spermatheca. Additionally, we examined the correlation between combat duration and sperm count. Results showed that losers and males with draw transferred fewer sperm than non-combat males. Moreover, the longer the combat duration, the fewer sperm males were able to transfer. These findings suggest that the reduction in sperm transferred was affected by both losing in combat and prolonged combat duration in leg-biting encounters.
en-copyright=
kn-copyright=
en-aut-name=MatsuuraTeruhisa
en-aut-sei=Matsuura
en-aut-mei=Teruhisa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=MiyatakeTakahisa
en-aut-sei=Miyatake
en-aut-mei=Takahisa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
affil-num=1
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Male combat
kn-keyword=Male combat
en-keyword=Male-male competition
kn-keyword=Male-male competition
en-keyword=Sperm transfer
kn-keyword=Sperm transfer
en-keyword=Sperm biology
kn-keyword=Sperm biology
END
start-ver=1.4
cd-journal=joma
no-vol=695
cd-vols=
no-issue=
article-no=
start-page=137727
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202510
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Tunable interlayer distance in graphene oxide through alkylamine surface coverage and chain length
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Layered materials have unique structures that can be modified by adjusting the space between layers through pillaring or surface functionalization. Unlike typical crystalline layered materials, graphene oxide (GO) possesses reactive oxygenated functional groups, which lead to spontaneous reduction and stacking upon thermal treatment. Here, we investigated the functionalization of GO with different amounts of hexylamine to control the degree of surface coverage. Furthermore, octylamine and dodecylamine were employed to confirm the effect of the alkyl chain length on the interlayer distance of the resultant GO derivatives. Subsequent thermal treatment produced reduced GO (rGO) functionalized with alkylamines, demonstrating the retention of the interlayer distance. Additionally, amine-functionalized rGOs exhibited varying porous structures.
en-copyright=
kn-copyright=
en-aut-name=Ortiz-AnayaIsrael
en-aut-sei=Ortiz-Anaya
en-aut-mei=Israel
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=ObataSeiji
en-aut-sei=Obata
en-aut-mei=Seiji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=NishinaYuta
en-aut-sei=Nishina
en-aut-mei=Yuta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
affil-num=1
en-affil=Graduate School of Natural Sciences and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
affil-num=3
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
en-keyword=Graphene oxide
kn-keyword=Graphene oxide
en-keyword=Layered material
kn-keyword=Layered material
en-keyword=Interlayer distance
kn-keyword=Interlayer distance
en-keyword=Functionalization
kn-keyword=Functionalization
en-keyword=Alkylamines
kn-keyword=Alkylamines
en-keyword=Nitrogen physisorption
kn-keyword=Nitrogen physisorption
END
start-ver=1.4
cd-journal=joma
no-vol=13
cd-vols=
no-issue=
article-no=
start-page=RP99858
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20241031
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Structural basis for molecular assembly of fucoxanthin chlorophyll a/c-binding proteins in a diatom photosystem I supercomplex
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Photosynthetic organisms exhibit remarkable diversity in their light-harvesting complexes (LHCs). LHCs are associated with photosystem I (PSI), forming a PSI-LHCI supercomplex. The number of LHCI subunits, along with their protein sequences and pigment compositions, has been found to differ greatly among the PSI-LHCI structures. However, the mechanisms by which LHCIs recognize their specific binding sites within the PSI core remain unclear. In this study, we determined the cryo-electron microscopy structure of a PSI supercomplex incorporating fucoxanthin chlorophyll a/c-binding proteins (FCPs), designated as PSI-FCPI, isolated from the diatom Thalassiosira pseudonana CCMP1335. Structural analysis of PSI-FCPI revealed five FCPI subunits associated with a PSI monomer; these subunits were identified as RedCAP, Lhcr3, Lhcq10, Lhcf10, and Lhcq8. Through structural and sequence analyses, we identified specific protein–protein interactions at the interfaces between FCPI and PSI subunits, as well as among FCPI subunits themselves. Comparative structural analyses of PSI-FCPI supercomplexes, combined with phylogenetic analysis of FCPs from T. pseudonana and the diatom Chaetoceros gracilis, underscore the evolutionary conservation of protein motifs crucial for the selective binding of individual FCPI subunits. These findings provide significant insights into the molecular mechanisms underlying the assembly and selective binding of FCPIs in diatoms.
en-copyright=
kn-copyright=
en-aut-name=KatoKoji
en-aut-sei=Kato
en-aut-mei=Koji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=NakajimaYoshiki
en-aut-sei=Nakajima
en-aut-mei=Yoshiki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=XingJian
en-aut-sei=Xing
en-aut-mei=Jian
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=KumazawaMinoru
en-aut-sei=Kumazawa
en-aut-mei=Minoru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=OgawaHaruya
en-aut-sei=Ogawa
en-aut-mei=Haruya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=ShenJian-Ren
en-aut-sei=Shen
en-aut-mei=Jian-Ren
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=IfukuKentaro
en-aut-sei=Ifuku
en-aut-mei=Kentaro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=NagaoRyo
en-aut-sei=Nagao
en-aut-mei=Ryo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
affil-num=1
en-affil=Research Institute for Interdisciplinary Science and Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Research Institute for Interdisciplinary Science and Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Graduate School of Agriculture, Kyoto University
kn-affil=
affil-num=4
en-affil=Graduate School of Agriculture, Kyoto University
kn-affil=
affil-num=5
en-affil=Research Institute for Interdisciplinary Science and Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=6
en-affil=Research Institute for Interdisciplinary Science and Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=7
en-affil=Graduate School of Agriculture, Kyoto University
kn-affil=
affil-num=8
en-affil=Faculty of Agriculture, Shizuoka University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=15
cd-vols=
no-issue=1
article-no=
start-page=18981
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250530
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Role of galectin-9 in the development of gestational diabetes mellitus
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Galectin-9 (Gal-9) is highly expressed in trophoblasts in placenta. Interaction between Gal-9 and T-cell immunoglobulin and mucin-domain containing-3 (Tim-3) is important for the differentiation of tissue resident natural killer (trNK) cells in placenta and maintenance of normal pregnancy. Furthermore, the enhanced maternal systemic inflammation associated with increased proinflammatory cytokines in preeclampsia is mediated by enhanced interaction between Gal-9 and Tim-3. However, the role of Gal-9 in gestational diabetes (GDM) remains unexplored. Plasma Gal-9 levels were elevated at 3rd trimester in pregnant women with GDM and positively correlated with placenta and newborn weight. Lgals9 knockout pregnant mice fed with high fat diet (HFD KO) demonstrated maternal glucose intolerance and fetus macrosomia compared with controls (HFD WT). In HFD KO, increased proliferating cells, reduced apoptosis, and autophagy impairment were observed in junctional zones. The number of trNK cells and percentage of Tim-3 + trNK increased, while early apoptosis percentage in Tim-3 + trNK was reduced in placenta of HFD KO. The elevation of plasma Gal-9 may be a biomarker for prediction of maternal glucose intolerance and fetal macrosomia in pregnant women with GDM and Gal-9 functions as a compensation factor for GDM by inducing apoptosis in Tim-3 + trNK cells.
en-copyright=
kn-copyright=
en-aut-name=AlbuayjanHaya Hamed Hassan
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affil-num=1
en-affil=Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=2
en-affil=Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=3
en-affil=Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=4
en-affil=Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=5
en-affil=Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=6
en-affil=Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=7
en-affil=Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=8
en-affil=Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=9
en-affil=Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=10
en-affil=Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=11
en-affil=Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=12
en-affil=Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=13
en-affil=Department of Obstetrics and Gynecology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=14
en-affil=Department of Obstetrics and Gynecology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=15
en-affil=Department of Obstetrics and Gynecology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=16
en-affil=Department of Obstetrics and Gynecology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=17
en-affil=Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
END
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dt-pub-year=2025
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en-title=ラジカルを経由する有機合成反応に用いる可視光応答型ナノカーボン触媒の開発
kn-title=Visible-Light-Responsive Nanocarbon Catalyst for Radical-Mediated Organic Transformations
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en-aut-name=MD RAZU AHMED
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aut-affil-num=1
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en-affil=Graduate School of Natural Science and Technology, Okayama university
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END
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kn-subject=
en-title=トリウム229原子核アイソマー状態からの脱励起光の観測
kn-title=Observation of the Radiative Decay from the Isomeric State of Thorium-229
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en-aut-name=OKAIKoichi
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en-affil=Graduate School of Natural Science and Technology, Okayama university
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END
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kn-title=和歌山県紀伊半島の四万十帯の美山付加コンプレックスと竜神付加コンプレックスにおける構造性メランジュの未固結から岩石化初期の剪断変形構造に関する研究
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en-aut-name=TAKESUENorito
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kn-aut-mei=勘人
aut-affil-num=1
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama university
kn-affil=岡山大学大学院自然科学研究科
END
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en-title=果実成熟応答経路の進化学的コンテクストと深層学習によるモデル化
kn-title=The evolutionary contextualization and deep neural network modeling on fruit ripening response
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en-aut-name=KUWADAEriko
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aut-affil-num=1
ORCID=
affil-num=1
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=岡山大学大学院環境生命自然科学研究科
END
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cd-journal=joma
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dt-pub-year=2025
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kn-subject=
en-title=タンパク質の限界発現により引き起こされるタンパク質毒性と細胞表現型の解析
kn-title=Analysis of Protein Toxicity and Cellular Phenotypes Triggered by the Maximum Overexpression of Proteins in Yeast
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kn-subtitle=
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kn-copyright=
en-aut-name=NAMBAShotaro
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aut-affil-num=1
ORCID=
affil-num=1
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=岡山大学大学院環境生命自然科学研究科
END
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kn-subject=
en-title=酸化グラフェンの3次元組織化による吸着特性の精密制御
kn-title=Tuning the 3D Structure of Graphene Oxide Assembly for Precisely Controlled Adsorption Properties
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kn-copyright=
en-aut-name=ISRAEL ORTIZ ANAYA
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ORCID=
affil-num=1
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END
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en-title=複雑な分子骨格の迅速構築を指向した1,2-転位を基盤とする合成法の開発
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en-aut-name=KAMADAHidetoshi
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ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama university
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END
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kn-subject=
en-title=有機電解合成における反応素過程の機構解明のための事例研究
kn-title=Deeper Mechanistic Understanding of Some Reaction Processes in Electroorganic Synthesis
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en-aut-name=NIKIYuta
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ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama university
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END
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en-title=
kn-title=高性能ワイヤ放電加工のための油加工液特性の最適化に関する研究
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kn-subtitle=
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kn-copyright=
en-aut-name=LIUShixian
en-aut-sei=LIU
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ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama university
kn-affil=岡山大学大学院自然科学研究科
END
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kn-title=組紐製造技術による繊維強化型人工筋肉の製作手法の確立と変位センシングの実現
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en-aut-name=TIANWEIHANG
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ORCID=
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en-affil=Graduate School of Natural Science and Technology, Okayama university
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END
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kn-title=数理統計学と情報理論を用いた限定的な事前情報下での意思決定補助手法に関する研究
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en-aut-name=TANABASHIShuto
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en-title=Bサイト金属カチオン置換に伴う結晶構造変化を利用したハロゲン化物ペロブスカイト材料のバンドギャップ制御
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ORCID=
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END
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en-title=Dockerイメージ生成およびFlutterプログラミング演習問題解答のためのWebアプリケーションシステムの実装
kn-title=Implementations of Web Application Systems for Docker Image Generation and Flutter Programming Exercise Answer
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END
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en-title=リハビリ目的の運動ゲームシステムにおけるゲーム操作のためのハンドジェスチャーの研究
kn-title=A Study of Hand Gestures for Controlling Video Games in Rehabilitation Exergame System
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en-aut-name=RADHIATUL HUSNA
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END
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kn-subject=
en-title=IEEE 802.11n2.4GHz無線LANにおける動作AP構成手法の高度化に関する研究
kn-title=Enhancements of Active Access-Point Configuration for IEEE 802.11n 2.4GHz Wireless Local-Area Network
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=Mousumi Saha
en-aut-sei=Mousumi Saha
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama university
kn-affil=岡山大学大学院自然科学研究科
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250325
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=行動の社会的要因:歩行者の衝突回避におけるダイナミクスの定量化
kn-title=Social Factors in Motion: Quantifying the Dynamics of Dyad–Individual Collision Avoidance
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=Adrien Thibaud Marie GREGORJ
en-aut-sei=Adrien Thibaud Marie GREGORJ
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama university
kn-affil=岡山大学大学院自然科学研究科
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250325
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=TCP/IPインターネットプロトコルスイートを利用したエンドツーエンドの通信の情報セキュリティの研究
kn-title=A Study on Information Security for End-to-End Communication by TCP/IP Internet Protocol Suite
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=NORIMATSUTakashi
en-aut-sei=NORIMATSU
en-aut-mei=Takashi
kn-aut-name=乗松隆志
kn-aut-sei=乗松
kn-aut-mei=隆志
aut-affil-num=1
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama university
kn-affil=岡山大学大学院自然科学研究科
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250325
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=ベンゾチアジアゾール系有機光起電力ドナー材料の合成と性質
kn-title=Synthesis and Properties of Benzothiadiazole-Based Organic Photovoltaic Donor Materials
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=YANYi
en-aut-sei=YAN
en-aut-mei=Yi
kn-aut-name=闫艺
kn-aut-sei=闫
kn-aut-mei=艺
aut-affil-num=1
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama university
kn-affil=岡山大学大学院自然科学研究科
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250325
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=パラジウム触媒によるカルボン酸誘導体の脱カルボニル化を伴うハロゲン化反応
kn-title=Palladium-Catalyzed Decarbonylative Halogenation of Carboxylic Acid Derivatives
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=TIANTian
en-aut-sei=TIAN
en-aut-mei=Tian
kn-aut-name=田天
kn-aut-sei=田
kn-aut-mei=天
aut-affil-num=1
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama university
kn-affil=岡山大学大学院自然科学研究科
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250325
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=分子シミュレーション及び積分方程式理論に基づく水中または単純液体中における溶質間有効相互作用に関する研究
kn-title=Molecular Simulation and Integral Equation Studies of the Solute-Solute Effective Interactions in Water and Simple Liquids
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=NAITOHidefumi
en-aut-sei=NAITO
en-aut-mei=Hidefumi
kn-aut-name=内藤秀文
kn-aut-sei=内藤
kn-aut-mei=秀文
aut-affil-num=1
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama university
kn-affil=岡山大学大学院自然科学研究科
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
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end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250325
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=イオンモデル開発を伴うアルコール及びPNIPAM水溶液の分子シミュレーション研究
kn-title=MOLECULAR SIMULATION STUDY ON AQUEOUS SOLUTIONS OF ALCOHOLS AND PNIPAM WITH DEVELOPMENT OF ION MODELS
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=TAIRAAoi
en-aut-sei=TAIRA
en-aut-mei=Aoi
kn-aut-name=平良碧生
kn-aut-sei=平良
kn-aut-mei=碧生
aut-affil-num=1
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama university
kn-affil=岡山大学大学院自然科学研究科
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250325
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=げっ歯類における性的二型行動とそのホルモン調節機構
kn-title=Sexually dimorphic behavior and its hormonal regulation in rodents
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=HAYASHIHimeka
en-aut-sei=HAYASHI
en-aut-mei=Himeka
kn-aut-name=林姫花
kn-aut-sei=林
kn-aut-mei=姫花
aut-affil-num=1
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama university
kn-affil=岡山大学大学院自然科学研究科
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250325
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=分光法とペーパー分析デバイスに基づく酵素活性測定法の開発
kn-title=Development of Enzyme Activity Assays Based on Spectrometric Methods and Paper-Based Analytical Devices
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=RENJIANCHAO
en-aut-sei=REN
en-aut-mei=JIANCHAO
kn-aut-name=任健超
kn-aut-sei=任
kn-aut-mei=健超
aut-affil-num=1
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama university
kn-affil=岡山大学大学院自然科学研究科
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250325
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=マイクロ流体ペーパー分析デバイスによる窒素化合物の現場環境分析法の開発
kn-title=Development of on-site environmental analytical methods for nitrogen compounds using microfluidic paper-based analytical devices
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=UMEDA (ISOYAMA)Mika
en-aut-sei=UMEDA (ISOYAMA)
en-aut-mei=Mika
kn-aut-name=梅田(礒山)美華
kn-aut-sei=梅田(礒山)
kn-aut-mei=美華
aut-affil-num=1
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama university
kn-affil=岡山大学大学院自然科学研究科
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250325
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=焼成による二次元物質上での物質形成を用いたナノポーラス材料の構造設計
kn-title=Structural Design of Nanoporous Materials with Substance Formation on Two-Dimensional Materials Using Calcination
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=TAKEUCHIYuki
en-aut-sei=TAKEUCHI
en-aut-mei=Yuki
kn-aut-name=武内裕城
kn-aut-sei=武内
kn-aut-mei=裕城
aut-affil-num=1
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama university
kn-affil=岡山大学大学院自然科学研究科
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250325
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=炭素材料の内部状態解析に向けた固体NMR観測手法の革新と応用
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=ANDOHideka
en-aut-sei=ANDO
en-aut-mei=Hideka
kn-aut-name=安東映香
kn-aut-sei=安東
kn-aut-mei=映香
aut-affil-num=1
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama university
kn-affil=岡山大学大学院自然科学研究科
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250325
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=酸化グラフェンを用いた新規ナノ多孔性炭素の合成と特性評価
kn-title=Synthesis and characterization of novel nanoporous carbons using graphene oxide
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=LIZhao
en-aut-sei=LI
en-aut-mei=Zhao
kn-aut-name=李昭
kn-aut-sei=李
kn-aut-mei=昭
aut-affil-num=1
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama university
kn-affil=岡山大学大学院自然科学研究科
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250325
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=宇宙マイクロ波背景放射観測衛星のための全天スキャン戦略の設計と系統的効果の制御
kn-title=Design of the full-sky scanning strategy and systematic effect control in a cosmic microwave background probe
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=TAKASEYusuke
en-aut-sei=TAKASE
en-aut-mei=Yusuke
kn-aut-name=髙瀬祐介
kn-aut-sei=髙瀬
kn-aut-mei=祐介
aut-affil-num=1
ORCID=
affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama university
kn-affil=岡山大学大学院自然科学研究科
END
start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250325
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=原発性乳癌に対する術前化学療法の効果予測因子として腸内細菌叢の有用性の検討:多施設共同前向きコホート研究(SBP-14)
kn-title=Baseline gut microbiota as a predictive marker for the efficacy of neoadjuvant chemotherapy in patients with early breast cancer: a multicenter prospective cohort study in the Setouchi Breast Project‑14
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
en-aut-name=NAKAMOTOShogo
en-aut-sei=NAKAMOTO
en-aut-mei=Shogo
kn-aut-name=中本翔伍
kn-aut-sei=中本
kn-aut-mei=翔伍
aut-affil-num=1
ORCID=
affil-num=1
en-affil=Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=岡山大学大学院医歯薬学総合研究科
END
start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=745
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250521
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Exploring the relationship between posture-dependent airway assessment in orthodontics: insights from kinetic MRI, cephalometric data, and three-dimensional MRI analysis
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Background Previous studies have assessed the upper airway using various examination methods, such as cephalometric imaging and magnetic resonance imaging (MRI). However, there is a significant gap in the research regarding the relationship between these different imaging modalities. This study compares airway assessments using kinetic MRI and cephalometric scans, examining their correlation with three dimensional (3D) MRI data.
Materials and methods Kinetic MRI, cephalometric scans, and 3D MRI of forty-seven participants were used in the present study. Airway areas and widths were measured at the retropalatal, retroglossal, and hypopharyngeal levels in both kinetic MRI and cephalometric scans. Airway volumes were calculated from 3D MRI data. Statistical analyses, including the Wilcoxon Signed Rank test, Spearman correlation, and multiple linear regression, were performed to evaluate the data and identify significant differences, correlations, and prediction models, respectively.
Results Significant differences were found between kinetic MRI and cephalometric scans. Cephalometric data showed larger airway areas and widths compared to kinetic MRI measurements. Although both cephalometric and kinetic MRI showed a correlation with 3D MRI, kinetic MRI demonstrated stronger correlations with 3D MRI airway volumes than cephalometric scans. According to our linear regression model equations, RPA-Max (maximum retropalatal airway area) and RPA (retropalatal airway area) can elucidate variations in RPV (retropalatal airway volume). RGA-Med (median retroglossal airway area) and RGA-Min (minimum retroglossal airway area) can explain variations in RGV (retroglossal airway volume). HPA (hypopharyngeal airway area) and ULHPAW-Max (maximum upper limit hypopharyngeal airway width) account for variations in HPV (hypopharyngeal airway volume). Additionally, TA-Max (maximum total airway area) can account for variations in TPV (total pharyngeal airway volume).ConclusionBoth cephalometric data and kinetic MRI data showed correlations with 3D MRI data. The shared posture of kinetic MRI and 3D MRI led to stronger correlations between these two modalities. Although cephalometric data had fewer correlations with 3D MRI and predictors for 3D airway volume, they were still significant. Our study highlights the complementary nature of kinetic MRI and cephalometric imaging, as both provide valuable information for airway assessment and exhibit significant correlations with 3D MRI data.
en-copyright=
kn-copyright=
en-aut-name=OkaNaoki
en-aut-sei=Oka
en-aut-mei=Naoki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=HabumugishaJanvier
en-aut-sei=Habumugisha
en-aut-mei=Janvier
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=NakamuraMasahiro
en-aut-sei=Nakamura
en-aut-mei=Masahiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=KataokaTomoki
en-aut-sei=Kataoka
en-aut-mei=Tomoki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=FujisawaAtsuro
en-aut-sei=Fujisawa
en-aut-mei=Atsuro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=KawanabeNoriaki
en-aut-sei=Kawanabe
en-aut-mei=Noriaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=IzawaTakashi
en-aut-sei=Izawa
en-aut-mei=Takashi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=KamiokaHiroshi
en-aut-sei=Kamioka
en-aut-mei=Hiroshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
affil-num=1
en-affil=Department of Orthodontics, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=2
en-affil=Department of Orthodontics, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=3
en-affil=Department of Orthodontics, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=4
en-affil=Division of Oral and Maxillofacial Surgery, Tottori University
kn-affil=
affil-num=5
en-affil=Department of Orthodontics, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=6
en-affil=Department of Orthodontics, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=7
en-affil=Department of Orthodontics, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=8
en-affil=Department of Orthodontics, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
en-keyword=Kinetic MRI
kn-keyword=Kinetic MRI
en-keyword=Posture
kn-keyword=Posture
en-keyword=Airway assessment
kn-keyword=Airway assessment
END
start-ver=1.4
cd-journal=joma
no-vol=295
cd-vols=
no-issue=
article-no=
start-page=128303
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20251201
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Using a microfluidic paper-based analytical device and solid-phase extraction to determine phosphate concentration
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Phosphate is an essential nutrient, but in high concentrations it contributes to water pollution. Traditional methods for phosphate measurement, such as absorption spectrophotometry and ion chromatography, require expensive equipment and skilled operators. This study introduces a microfluidic paper-based analytical device (μPAD) that is designed to accomplish field-based, low-concentration phosphate measurements. This μPAD utilizes colorimetric detection based on the molybdenum blue method. Herein, we describe how the conditions were optimized in terms of design and sensitivity by adjusting reagent concentrations, paper thickness, and the time frames for sample introduction, and reaction. The operation consists of simply dipping the μPAD into a sample, capturing images in a home-made photo studio box, and processing the images with ImageJ software to measure RGB intensity. An additional preconcentration step involves solid-phase extraction with an anion exchange resin that achieves a 10-fold enrichment, which enables detection that ranges from 0.05 to 1 mg L−1 with a detection limit of 0.089 mg L−1 and a quantification limit of 0.269 mg L−1. The replicated measurements showed good reproducibility both intraday and interday (five different days) as 4.7 % and 3.0 % of relative standard deviations, respectively. After storage in a refrigerator for as long as 26 days, this μPAD delivered stable and accurate results for real-world samples of natural water, soil, and toothpaste. The results produced using this system correlate well with those produced via spectrophotometry. This μPAD-based method is a cost-effective, portable, rapid, and simple approach that allows relatively unskilled operators to monitor phosphate concentrations in field applications.
en-copyright=
kn-copyright=
en-aut-name=DanchanaKaewta
en-aut-sei=Danchana
en-aut-mei=Kaewta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=NambaHaruka
en-aut-sei=Namba
en-aut-mei=Haruka
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=KanetaTakashi
en-aut-sei=Kaneta
en-aut-mei=Takashi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
affil-num=1
en-affil=Department of Chemistry, Okayama University
kn-affil=
affil-num=2
en-affil=Department of Chemistry, Okayama University
kn-affil=
affil-num=3
en-affil=Department of Chemistry, Okayama University
kn-affil=
en-keyword=Phosphate
kn-keyword=Phosphate
en-keyword=Microfluidic paper-based analytical device
kn-keyword=Microfluidic paper-based analytical device
en-keyword=Solid-phase extraction
kn-keyword=Solid-phase extraction
en-keyword=Anion exchanger
kn-keyword=Anion exchanger
en-keyword=Molybdenum blue method
kn-keyword=Molybdenum blue method
END
start-ver=1.4
cd-journal=joma
no-vol=11
cd-vols=
no-issue=20
article-no=
start-page=eadv7488
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250516
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Structure of a photosystem I supercomplex from Galdieria sulphuraria close to an ancestral red alga
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Red algae exhibit unique photosynthetic adaptations, characterized by photosystem I (PSI) supercomplexes containing light-harvesting complexes (LHCs), forming PSI-LHCI supercomplexes. In this study, we solved the PSI-LHCI structure of Galdieria sulphuraria NIES-3638 at 2.19-angstrom resolution using cryo-electron microscopy, revealing a PSI monomer core associated with seven LHCI subunits. Structural analysis uncovered the absence of phylloquinones, the common secondary electron acceptor in PSI of photosynthetic organisms, suggesting adaptation to a benzoquinone-like molecule. Phylogenetic analysis suggests that G. sulphuraria retains traits characteristic of an ancestral red alga, including distinctive LHCI binding and interaction patterns. Variations in LHCI composition and interactions across red algae, particularly in red-lineage chlorophyll a/b-binding-like protein and red algal LHCs, highlight evolutionary divergence and specialization. These findings not only deepen our understanding of red algal PSI-LHCI diversification but also enable us to predict features of an ancestral red algal PSI-LHCI supercomplex, providing a framework to explore evolutionary adaptations from an ancestral red alga.
en-copyright=
kn-copyright=
en-aut-name=KatoKoji
en-aut-sei=Kato
en-aut-mei=Koji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=KumazawaMinoru
en-aut-sei=Kumazawa
en-aut-mei=Minoru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=NakajimaYoshiki
en-aut-sei=Nakajima
en-aut-mei=Yoshiki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=SuzukiTakehiro
en-aut-sei=Suzuki
en-aut-mei=Takehiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=DohmaeNaoshi
en-aut-sei=Dohmae
en-aut-mei=Naoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=ShenJian-Ren
en-aut-sei=Shen
en-aut-mei=Jian-Ren
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=IfukuKentaro
en-aut-sei=Ifuku
en-aut-mei=Kentaro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=NagaoRyo
en-aut-sei=Nagao
en-aut-mei=Ryo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
affil-num=1
en-affil=Research institute for interdisciplinary Science and Graduate School of environ-mental, life, natural Science and technology, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Agriculture, Kyoto University
kn-affil=
affil-num=3
en-affil=Research institute for interdisciplinary Science and Graduate School of environ-mental, life, natural Science and technology, Okayama University
kn-affil=
affil-num=4
en-affil=Biomolecular characterization Unit, RiKen center for Sustainable Resource Science
kn-affil=
affil-num=5
en-affil=Biomolecular characterization Unit, RiKen center for Sustainable Resource Science
kn-affil=
affil-num=6
en-affil=Research institute for interdisciplinary Science and Graduate School of environ-mental, life, natural Science and technology, Okayama University
kn-affil=
affil-num=7
en-affil=Graduate School of Agriculture, Kyoto University
kn-affil=
affil-num=8
en-affil=Faculty of Agriculture, Shizuoka University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=16
cd-vols=
no-issue=1
article-no=
start-page=4175
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250505
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Structure of a photosystem II-FCPII supercomplex from a haptophyte reveals a distinct antenna organization
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Haptophytes are unicellular algae that produce 30 to 50% of biomass in oceans. Among haptophytes, a subset named coccolithophores is characterized by calcified scales. Despite the importance of coccolithophores in global carbon fixation and CaCO3 production, their energy conversion system is still poorly known. Here we report a cryo-electron microscopic structure of photosystem II (PSII)-fucoxanthin chlorophyll c-binding protein (FCPII) supercomplex from Chyrostila roscoffensis, a representative of coccolithophores. This complex has two sets of six dimeric and monomeric FCPIIs, with distinct orientations. Interfaces of both FCPII/FCPII and FCPII/core differ from previously reported. We also determine the sequence of Psb36, a subunit previously found in diatoms and red algae. The principal excitation energy transfer (EET) pathways involve mainly 5 FCPIIs, where one FCPII monomer mediates EET to CP47. Our findings provide a solid structural basis for EET and energy dissipation pathways occurring in coccolithophores.
en-copyright=
kn-copyright=
en-aut-name=La RoccaRomain
en-aut-sei=La Rocca
en-aut-mei=Romain
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=KatoKoji
en-aut-sei=Kato
en-aut-mei=Koji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=TsaiPi-Cheng
en-aut-sei=Tsai
en-aut-mei=Pi-Cheng
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=NakajimaYoshiki
en-aut-sei=Nakajima
en-aut-mei=Yoshiki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=AkitaFusamichi
en-aut-sei=Akita
en-aut-mei=Fusamichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=ShenJian-Ren
en-aut-sei=Shen
en-aut-mei=Jian-Ren
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
affil-num=1
en-affil=Research Institute for Interdisciplinary Science, and Advanced Research Field, Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Research Institute for Interdisciplinary Science, and Advanced Research Field, Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Research Institute for Interdisciplinary Science, and Advanced Research Field, Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Research Institute for Interdisciplinary Science, and Advanced Research Field, Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=5
en-affil=Research Institute for Interdisciplinary Science, and Advanced Research Field, Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=6
en-affil=Research Institute for Interdisciplinary Science, and Advanced Research Field, Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=79
cd-vols=
no-issue=3
article-no=
start-page=147
end-page=155
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202506
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Immunometabolic Regulation of Innate Immunity in Systemic Lupus Erythematosus
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Pathogens or their components can induce long-lasting changes in the behavior of innate immune cells, a process analogous to “training” for future threats or environmental adaptation. However, such training can sometimes have unintended consequences, such as the development of autoimmunity. Systemic lupus erythematosus (SLE) is a chronic and heterogeneous autoimmune disease characterized by the production of autoantibodies and progressive organ damage. Innate immunity plays a central role in its pathogenesis, contributing through impaired clearance of apoptotic cells, excessive type I interferon production, and dysregulated formation of neutrophil extracellular traps. Recent studies have revealed that metabolites and nucleic acids derived from mitochondria, a crucial energy production site, directly regulate type I interferon and anti-inflammatory cytokine production. These insights have fueled interest in targeting metabolic pathways as a novel therapeutic approach for SLE, offering promise for improving long-term patient outcomes.
en-copyright=
kn-copyright=
en-aut-name=WatanabeHaruki
en-aut-sei=Watanabe
en-aut-mei=Haruki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=MatsumotoYoshinori
en-aut-sei=Matsumoto
en-aut-mei=Yoshinori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=WadaJun
en-aut-sei=Wada
en-aut-mei=Jun
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
affil-num=1
en-affil=Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=2
en-affil=Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=3
en-affil=Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
en-keyword=systemic lupus erythematosus
kn-keyword=systemic lupus erythematosus
en-keyword=interferon
kn-keyword=interferon
en-keyword=tricarboxylic acid cycle
kn-keyword=tricarboxylic acid cycle
en-keyword=innate immune memory
kn-keyword=innate immune memory
en-keyword=trained immunity
kn-keyword=trained immunity
END
start-ver=1.4
cd-journal=joma
no-vol=192
cd-vols=
no-issue=5
article-no=
start-page=58
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250416
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The Intertwining Property for Laguerre Processes with a Fixed Parameter
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We investigate the intertwining of Laguerre processes of parameter α in different dimensions. We introduce a Feller kernel that depends on α and intertwines the α-Laguerre process in N + 1 dimensions and that in N dimensions. When α is a non-negative integer, the new kernel is interpreted in terms of the conditional distribution of the squared singular values: if the singular values of a unitarily invariant random matrix of order (N+α+1)×(N+1) are fixed, then the those of its (N+α) × N truncation matrix are given by the new kernel.
en-copyright=
kn-copyright=
en-aut-name=BufetovAlexander I.
en-aut-sei=Bufetov
en-aut-mei=Alexander I.
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=KawamotoYosuke
en-aut-sei=Kawamoto
en-aut-mei=Yosuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
affil-num=1
en-affil=Steklov Mathematical Institute of RAS
kn-affil=
affil-num=2
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Random matrices
kn-keyword=Random matrices
en-keyword=Intertwining relation
kn-keyword=Intertwining relation
en-keyword=Interacting Brownian motions
kn-keyword=Interacting Brownian motions
END
start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=18
article-no=
start-page=4737
end-page=4741
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250429
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Electrochemical Oxidation of Benzyl Alcohols via Hydrogen Atom Transfer Mediated by 2,2,2-Trifluoroethanol
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We report a novel electrochemical oxidation of benzyl alcohols. We found that trifluoroethanol plays a role as a hydrogen atom transfer (HAT) mediator, enabling the oxidation of electron-deficient substrates that are difficult to directly oxidize on electrode surfaces. Density functional theory calculations, cyclic voltammetry measurements, and constant potential electrolysis studies supported the proposed HAT mechanism. Moreover, the obtained carbonyl compounds could be functionalized in an electrochemical one-pot manner, further highlighting their synthetic utility.
en-copyright=
kn-copyright=
en-aut-name=KawajiriTakahiro
en-aut-sei=Kawajiri
en-aut-mei=Takahiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=HosoyaMasahiro
en-aut-sei=Hosoya
en-aut-mei=Masahiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=GodaSatoshi
en-aut-sei=Goda
en-aut-mei=Satoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=SatoEisuke
en-aut-sei=Sato
en-aut-mei=Eisuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=SugaSeiji
en-aut-sei=Suga
en-aut-mei=Seiji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
affil-num=1
en-affil=API R&D Laboratory, Research Division, Shionogi & Co., Ltd.
kn-affil=
affil-num=2
en-affil=API R&D Laboratory, Research Division, Shionogi & Co., Ltd.
kn-affil=
affil-num=3
en-affil=API R&D Laboratory, Research Division, Shionogi & Co., Ltd.
kn-affil=
affil-num=4
en-affil=Division of Applied Chemistry, Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=5
en-affil=Division of Applied Chemistry, Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=120
cd-vols=
no-issue=1
article-no=
start-page=241001
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=2025
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Metamorphic pressure-temperature conditions of garnet granulite from the Eastern Iratsu body in the Sambagawa belt, SW Japan
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Several coarse-grained mafic bodies with evidence for eclogite-facies metamorphism are present in the Besshi area of the Sambagawa subduction-type metamorphic belt, SW Japan. Among them the granulite-bearing Eastern Iratsu metagabbro body involves an unresolved problem of whether it originated in the hanging-wall or footwall side of the subduction zone. The key to settle this problem is its relationship with the adjacent Western Iratsu metabasaltic body, which includes thick marble layer and certainly has the footwall ocean-floor origin. Several previous studies consider that the Western and Eastern Iratsu bodies were originally coherent in the footwall side and formed the shallower and deeper parts of a thick oceanic crust, respectively. The validity of this hypothesis may be assessed by deriving pressure-temperature history of the Eastern Iratsu body, or especially the pressure (depth) condition of the granulite-facies metamorphism before the eclogite-facies overprinting because, if the pressure was relatively high, the oceanic crust assumed in the above hypothesis might be too thick to tectonically achieve the present-day adjacence of the two bodies on the geological map. This study petrologically analyzes a garnet-bearing granulite from the Eastern Iratsu body and newly reports stable coexistence of garnet and orthopyroxene in the sample. By utilizing a garnet-orthopyroxene geothermobarometer, the minimum P-T conditions of the granulite-facies stage was estimated to be 0.8 GPa (∼ 27 km in depth) and 780 °C. If the Western and Eastern Iratsu bodies were assumed to have formed a coherent oceanic crust before their subduction, the original thickness of it was >27 km and this demands unusually strong ductile shortening (<1/9) or unrealistically large vertical displacement on intraplate faulting, suggesting invalidity of the assumption. The Western and Eastern Iratsu bodies, therefore, are originally bounded by subduction-boundary fault and the obtained pressure of 0.8 GPa can be interpreted to represent that of the hanging-wall lower continental crust in the subduction zone, where the Eastern Iratsu body originated. After the granulite-facies metamorphism, the Western Iratsu body, which was located near the footwall surface, initiated subduction and was subsequently juxtaposed with the above-located Eastern Iratsu body at the corresponding depth (∼ 27 km or greater) along the subduction boundary.
en-copyright=
kn-copyright=
en-aut-name=NAKAMURADaisuke
en-aut-sei=NAKAMURA
en-aut-mei=Daisuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=AOYAMutsuki
en-aut-sei=AOYA
en-aut-mei=Mutsuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=OKAMURATomoki
en-aut-sei=OKAMURA
en-aut-mei=Tomoki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
affil-num=1
en-affil=Faculty of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Technology, Industrial and Social Sciences, Tokushima University
kn-affil=
affil-num=3
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Sambagawa belt
kn-keyword=Sambagawa belt
en-keyword=Iratsu body
kn-keyword=Iratsu body
en-keyword=Metagabbro
kn-keyword=Metagabbro
en-keyword=Granulite
kn-keyword=Granulite
en-keyword=Hanging wall
kn-keyword=Hanging wall
END
start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=5
article-no=
start-page=e70087
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250512
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Genomic Islands of Pseudomonas syringae pv. tabaci 6605: Identification of PtaGI-1 as a Pathogenicity Island With Effector Genes and a Tabtoxin Cluster
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Genomic islands (GIs) are 20-500 kb DNA regions that are thought to be acquired by horizontal gene transfer. GIs that confer pathogenicity and environmental adaptation have been reported in Pseudomonas species; however, GIs that enhance bacterial virulence have not. Here, we identified 110 kb and 103 kb GIs in P. syringae pv. tabaci 6605 (Pta6605), the causative agent of tobacco wildfire disease, which has the ability to produce tabtoxin as a phytotoxin. These GIs are partially homologous to known genomic islands in Pseudomonas aeruginosa and P. syringae pv. phaseolicola and were designated PtaGI-1 and PtaGI-2. Both PtaGIs conserve core genes, whereas each GI possesses different accessory genes. PtaGI-1 contains a tabtoxin biosynthetic gene cluster and three type III effector genes among its accessory genes, whereas PtaGI-2 also contains homologous genes to hsvABC, pathogenicity-related genes in Erwinia amylovora. Inoculation revealed that the PtaGI-1 mutant, but not the PtaGI-2 mutant, lost the ability to biosynthesise tabtoxin and to cause disease. Therefore, PtaGI-1 is thought to be a pathogenicity island. Both PtaGI-1 and PtaGI-2 have a pseudogene of tRNALys on the left border and an intact tRNALys gene on the right border. In a colony of Pta6605, both GIs can be excised at tRNALys, and PtaGI-1 and PtaGI-2 exist in a circular form. These results indicate that tabtoxin biosynthesis genes in PtaGI-1 are required for disease development, and PtaGI-1 is necessary for Pta6605 virulence.
en-copyright=
kn-copyright=
en-aut-name=WatanabeYuta
en-aut-sei=Watanabe
en-aut-mei=Yuta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=KunishiKotomi
en-aut-sei=Kunishi
en-aut-mei=Kotomi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=MatsuiHidenori
en-aut-sei=Matsui
en-aut-mei=Hidenori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=SakataNanami
en-aut-sei=Sakata
en-aut-mei=Nanami
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=NoutoshiYoshiteru
en-aut-sei=Noutoshi
en-aut-mei=Yoshiteru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=ToyodaKazuhiro
en-aut-sei=Toyoda
en-aut-mei=Kazuhiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=IchinoseYuki
en-aut-sei=Ichinose
en-aut-mei=Yuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
affil-num=1
en-affil=The Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Faculty of Agriculture,Okayama University
kn-affil=
affil-num=3
en-affil=The Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=The Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=5
en-affil=The Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=6
en-affil=The Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=7
en-affil=The Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=horizontal gene transfer
kn-keyword=horizontal gene transfer
en-keyword=integrative and conjugative elements
kn-keyword=integrative and conjugative elements
en-keyword=pathogenicity island
kn-keyword=pathogenicity island
en-keyword=Pseudomonas syringae
kn-keyword=Pseudomonas syringae
en-keyword=tabtoxin
kn-keyword=tabtoxin
END
start-ver=1.4
cd-journal=joma
no-vol=8
cd-vols=
no-issue=1
article-no=
start-page=715
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250508
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=TRPV2 mediates stress resilience in mouse cardiomyocytes
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The heart dynamically compensates for haemodynamic stress, but how this resilience forms during cardiac growth is not clear. Using a temporally inducible, cardiac-specific knockout in mice we show that the Transient receptor potential vanilloid family 2 (TRPV2) channel is crucial for the maturation of cardiomyocyte stress resilience. TRPV2 defects in growing hearts lead to small morphology, abnormal intercalated discs, weak contractility, and low expression of serum response factor and Insulin-like growth factor-1 (IGF-1) signalling. Individual cardiomyocytes of TRPV2-deficient hearts show reduced contractility with abnormal Ca2+ handling. In cultured neonatal cardiomyocytes, mechanical Ca2+ response, excitation-contraction coupling, sarcoplasmic reticulum Ca2+ content, actin formation, nuclear localisation of Myocyte enhancer factor 2c, and IGF-1 expression require TRPV2. TRPV2-deficient hearts show a defective response to dobutamine stress and no compensatory hypertrophic response to phenylephrine administration, but no stress response to pressure overload. These data suggest TRPV2 mediates the maturation of cardiomyocyte stress resilience, and will advance therapeutic interventions and drug discovery for heart disease.
en-copyright=
kn-copyright=
en-aut-name=DongYubing
en-aut-sei=Dong
en-aut-mei=Yubing
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=WangGuohao
en-aut-sei=Wang
en-aut-mei=Guohao
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=UjiharaYoshihiro
en-aut-sei=Ujihara
en-aut-mei=Yoshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=ChenYanzhu
en-aut-sei=Chen
en-aut-mei=Yanzhu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=YoshidaMasashi
en-aut-sei=Yoshida
en-aut-mei=Masashi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=NakamuraKazufumi
en-aut-sei=Nakamura
en-aut-mei=Kazufumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=KatanosakaKimiaki
en-aut-sei=Katanosaka
en-aut-mei=Kimiaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=NaruseKeiji
en-aut-sei=Naruse
en-aut-mei=Keiji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=KatanosakaYuki
en-aut-sei=Katanosaka
en-aut-mei=Yuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
affil-num=1
en-affil=Department of Cardiovascular Physiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=2
en-affil=Department of Cardiovascular Physiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=3
en-affil=Department of Electrical and Mechanical Engineering, Graduate School of Engineering, Nagoya Institute of Technology
kn-affil=
affil-num=4
en-affil=Department of Cardiovascular Physiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=5
en-affil=Department of Chronic Kidney Disease and Cardiovascular Disease, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=6
en-affil=Department of Cardiovascular Medicine, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences
kn-affil=
affil-num=7
en-affil=Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University
kn-affil=
affil-num=8
en-affil=Department of Cardiovascular Physiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
affil-num=9
en-affil=Department of Cardiovascular Physiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=5
article-no=
start-page=e70091
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250507
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Pseudomonas syringae pv. tabaci 6605 Requires Seven Type III Effectors to Infect Nicotiana benthamiana
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Type III effectors (T3Es), virulence factors injected into plant cells via the type III secretion system (T3SS), play essential roles in the infection of host plants. Pseudomonas syringae pv. tabaci 6605 (Pta 6605) is the causal agent of wildfire disease in tobacco and harbours at least 22 T3Es in its genome. However, the specific T3Es required by Pta 6605 to infect Nicotiana benthamiana remain unidentified. In this study, we investigated the T3Es that contribute to Pta 6605 infection of N. benthamiana. We constructed Pta 6605 poly-T3E-deficient mutants (Pta DxE) and inoculated them into N. benthamiana. Flood assay, which mimics natural opening-based entry, showed that mutant strains lacking 14-22 T3Es, namely, Pta D14E-D22E mutants, exhibited reduced disease symptoms. By contrast, infiltration inoculation, which involves direct injection into leaves, showed that the Pta D14E to Pta D20E mutants developed disease symptoms. Notably, the Pta D20E, containing AvrE1 and HopM1, induced weak but observable symptoms upon infiltration inoculation. Conversely, no symptoms were observed in either the flood assay or infiltration inoculation for Pta D21E and Pta D22E. Taken together, these findings indicate that the many T3Es such as AvrPto4/AvrPtoB, HopW1/HopAE1, and HopM1/AvrE1 in Pta 6605 collectively contribute to invasion through natural openings and symptom development in N. benthamiana. This study provides the basis for understanding virulence in the host by identifying the minimum T3E repertoire required by Pta 6605 to infect N. benthamiana.
en-copyright=
kn-copyright=
en-aut-name=KuroeKana
en-aut-sei=Kuroe
en-aut-mei=Kana
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=NishimuraTakafumi
en-aut-sei=Nishimura
en-aut-mei=Takafumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=KashiharaSachi
en-aut-sei=Kashihara
en-aut-mei=Sachi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=SakataNanami
en-aut-sei=Sakata
en-aut-mei=Nanami
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=YamamotoMikihiro
en-aut-sei=Yamamoto
en-aut-mei=Mikihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=NoutoshiYoshiteru
en-aut-sei=Noutoshi
en-aut-mei=Yoshiteru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=ToyodaKazuhiro
en-aut-sei=Toyoda
en-aut-mei=Kazuhiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
en-aut-name=IchinoseYuki
en-aut-sei=Ichinose
en-aut-mei=Yuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=
en-aut-name=MatsuiHidenori
en-aut-sei=Matsui
en-aut-mei=Hidenori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=
affil-num=1
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=3
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=4
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=5
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=6
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=7
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=8
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
affil-num=9
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
en-keyword=poly T3E mutant
kn-keyword=poly T3E mutant
en-keyword=type III effector
kn-keyword=type III effector
en-keyword=type III secretion system
kn-keyword=type III secretion system
END
start-ver=1.4
cd-journal=joma
no-vol=33
cd-vols=
no-issue=8
article-no=
start-page=18515
end-page=18529
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250418
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Demonstration of enhanced Raman scattering in high-Q silicon nanocavities operating below the silicon band-gap wavelength
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We experimentally determined the quality factor (Q) and the intensity of the Raman scattered light for different silicon photonic-crystal nanocavities operating at wavelengths shorter than the silicon band-gap wavelength. Despite the relatively large absorption of silicon in this wavelength region, we observed Q values greater than 10,000 for cavities with a resonance wavelength of 1.05 mu m, and Q values greater than 30,000 for cavities with a resonance wavelength of 1.10 mu m. Additionally, we measured the Raman scattering spectra of cavities with resonance wavelengths of 1.10 mu m and 1.21 mu m. On average, the generation efficiency of the Raman scattered light in a 1.10-mu m nanocavity is 6.5 times higher than that in a 1.21-mu m nanocavity. These findings suggest that silicon nanocavities operating below the silicon band-gap wavelength could be useful in the development of silicon-based light sources.
en-copyright=
kn-copyright=
en-aut-name=ShimomuraYu
en-aut-sei=Shimomura
en-aut-mei=Yu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=AsanoTakashi
en-aut-sei=Asano
en-aut-mei=Takashi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=IshiharaAyumi
en-aut-sei=Ishihara
en-aut-mei=Ayumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=NodaSusumu
en-aut-sei=Noda
en-aut-mei=Susumu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=TakahashiYasushi
en-aut-sei=Takahashi
en-aut-mei=Yasushi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
affil-num=1
en-affil=Department of Physics and Electronics, Osaka Metropolitan University
kn-affil=
affil-num=2
en-affil=Department of Electronic Science and Engineering, Kyoto University
kn-affil=
affil-num=3
en-affil=Department of Physics and Electronics, Osaka Metropolitan University
kn-affil=
affil-num=4
en-affil=Department of Electronic Science and Engineering, Kyoto University
kn-affil=
affil-num=5
en-affil=Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
kn-affil=
END
start-ver=1.4
cd-journal=joma
no-vol=214
cd-vols=
no-issue=
article-no=
start-page=32
end-page=41
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=202505
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=The Medaka approach to evolutionary social neuroscience
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Previously, the integration of comparative biological and neuroscientific approaches has led to significant advancements in social neuroscience. This review highlights the potential and future directions of evolutionary social neuroscience research utilizing medaka fishes (the family Adrianichthyidae) including Japanese medaka (Oryzias latipes). We focus on medaka social cognitive capabilities and mate choice behavior, particularly emphasizing mate preference using visual cues. Medaka fishes are also advantageous due to their abundant genetic resources, extensive genomic information, and the relative ease of laboratory breeding and genetic manipulation. Here we present some research examples of both the conventional neuroscience approach and evolutionary approach involving medaka fishes and other species. We also discuss the prospects of uncovering the molecular and cellular mechanisms underlying the diversity of visual mate preference among species. Especially, we introduce that the single-cell transcriptome technology, particularly in conjunction with 'Adaptive Circuitry Census', is an innovative tool that bridges comparative biological methods and neuroscientific approaches. Evolutionary social neuroscience research using medaka has the potential to unveil fundamental principles in neuroscience and elucidate the mechanisms responsible for generating diversity in mating strategies.
en-copyright=
kn-copyright=
en-aut-name=AnsaiSatoshi
en-aut-sei=Ansai
en-aut-mei=Satoshi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=
en-aut-name=Hiraki-KajiyamaTowako
en-aut-sei=Hiraki-Kajiyama
en-aut-mei=Towako
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=
en-aut-name=UedaRyutaro
en-aut-sei=Ueda
en-aut-mei=Ryutaro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=
en-aut-name=SekiTakahide
en-aut-sei=Seki
en-aut-mei=Takahide
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=
en-aut-name=YokoiSaori
en-aut-sei=Yokoi
en-aut-mei=Saori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=
en-aut-name=KatsumuraTakafumi
en-aut-sei=Katsumura
en-aut-mei=Takafumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=
en-aut-name=TakeuchiHideaki
en-aut-sei=Takeuchi
en-aut-mei=Hideaki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=
affil-num=1
en-affil=Ushimado Marine Institute, Okayama University
kn-affil=
affil-num=2
en-affil=Graduate School of Life Sciences, Tohoku University
kn-affil=
affil-num=3
en-affil=Graduate School of Life Sciences, Tohoku University
kn-affil=
affil-num=4
en-affil=Graduate School of Life Sciences, Tohoku University
kn-affil=
affil-num=5
en-affil=School of Pharmaceutical Sciences, Hokkaido University
kn-affil=
affil-num=6
en-affil=School of Medicine, Kitasato University
kn-affil=
affil-num=7
en-affil=Graduate School of Life Sciences, Tohoku University
kn-affil=
en-keyword=Evolutionary neuroscience
kn-keyword=Evolutionary neuroscience
en-keyword=Comparative neuroscience
kn-keyword=Comparative neuroscience
en-keyword=Medaka bioresource
kn-keyword=Medaka bioresource
en-keyword=Visual mate preference
kn-keyword=Visual mate preference
en-keyword=Sexual selection
kn-keyword=Sexual selection
en-keyword=Genetic manipulation
kn-keyword=Genetic manipulation
END