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Author Nara, Shigetoshi| Yamaguti, Yutaka| Tsuda, Ichiro|
Keywords Neuromodulator Nichotinic Acetylcholine Receptors Brain activity
Note The version of record of this article, first published in Cognitive Neurodynamics, is available online at Publisher’s website: http://dx.doi.org/10.1007/s11571-023-09975-7|
Published Date 2023-05-19
Publication Title Cognitive Neurodynamics
Volume volume18
Issue issue3
Publisher Springer Science and Business Media LLC
Start Page 769
End Page 774
ISSN 1871-4080
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © The Author(s) 2023
File Version publisher
PubMed ID 37362764
DOI 10.1007/s11571-023-09975-7
Web of Science KeyUT 000990976800001
Related Url isVersionOf https://doi.org/10.1007/s11571-023-09975-7
FullText URL fulltext.pdf
Author Kaneko, Daisuke| Takatori, Sayuri| Hasegawa, Masaya| Hazumi, Masashi| Inoue, Yuki| Jeong, Oliver| Katayama, Nobuhiko| Lee, Adrian T.| Matsuda, Frederick| Nishino, Haruki| Siritanasak, Praween| Suzuki, Aritoki| Takakura, Satoru| Tomaru, Takayuki|
Keywords cosmic microwave background gain calibrator detector calibration transition edge sensor
Published Date 2024-01-27
Publication Title Journal of Astronomical Telescopes, Instruments, and Systems
Volume volume10
Issue issue1
Publisher Society of Photo-optical Instrumentation Engineers
Start Page 018003
ISSN 2329-4124
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © The Authors.
File Version publisher
DOI 10.1117/1.jatis.10.1.018003
Web of Science KeyUT 001295821000027
Related Url isVersionOf https://doi.org/10.1117/1.jatis.10.1.018003
FullText URL fulltext.pdf
Author Sumi, Tomonari| Harada, Kouji|
Keywords post-acute sequelae of SARS-CoV-2 infection PASC long Covid persistent viruses vaccine antiviral drug mathematical model immune response
Published Date 2024-08-09
Publication Title Frontiers in Immunology
Volume volume15
Publisher Frontiers Media
Start Page 1329162
ISSN 1664-3224
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2024 Sumi and Harada.
File Version publisher
PubMed ID 39185419
DOI 10.3389/fimmu.2024.1329162
Web of Science KeyUT 001295899400001
Related Url isVersionOf https://doi.org/10.3389/fimmu.2024.1329162
FullText URL fulltext20240722-01.pdf
Author Jinzenji, Masao| Matsuzaka, Kohki|
Keywords Givental's I-function Generalized hypergeometric series Moduli space of quasimaps Intersection number
Note This is an Accepted Manuscript of an article published by Tokyo Institute of Technology, Department of Mathematics.| Kodai Mathematical Journal Vol. 47 No. 2に掲載。|
Published Date 2024-06
Publication Title Kodai Mathematical Journal
Volume volume47
Issue issue2
Publisher Tokyo Institute of Technology, Department of Mathematics
Start Page 162
End Page 177
ISSN 0386-5991
NCID AA00711773
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2024 Tokyo Institute of Technology, Department of Mathematics
File Version author
DOI 10.2996/kmj47203
Web of Science KeyUT 001265353200003
Related Url isVersionOf https://doi.org/10.2996/kmj47203
JaLCDOI 10.18926/AMO/67197
FullText URL 78_3_227.pdf
Author Wada, Yudai| Ushio, Soichiro| Kitamura, Yoshihisa| Zamami, Yoshito| Sendo, Toshiaki|
Abstract Zolpidem, a non-benzodiazepine hypnotic, is primarily used to treat insomnia. In a previous study, pior treatment with non-benzodiazepine receptor agonists was associated with inflammation. The present study aimed to clarify the association between the effects of zolpidem and inflammation in mice treated with lipopolysaccharide (LPS), a known model of inflammation. We assessed the zolpidem-induced loss of righting reflex (LORR) duration 24 h after LPS treatment in mice. Additionally, the expressions of γ-aminobutyric acid (GABA)A receptor subunit and K+-Cl− cotransporter isoform 2 (KCC2) mRNA in the hippocampus and frontal cortex were examined in LPS-treated mice. Pretreatment with LPS was associated with significantly prolonged duration of zolpidem-induced LORR compared to control mice. This effect was significantly attenuated by administering bicuculline, a GABAA receptor antagonist, or flumazenil, a benzodiazepine receptor antagonist, in LPS-treated mice. Compared to controls, LPS-treated mice showed no significant change in the expression of GABAA receptor subunits in the hippocampus or frontal cortex. Bumetanide, an Na+-K+-2Cl− cotransporter isoform 1 blocker, attenuated the extended duration of zolpidem-induced LORR observed in LPS-treated mice. LPS significantly decreased Kcc2 mRNA expression in the hippocampus and the frontal cortex. These findings suggest that inflammation increases zolpidem-induced LORR, possibly through a reduction in KCC2 expression.
Keywords lipopolysaccharide zolpidem GABAA receptor K+-Cl− cotransporters
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2024-06
Volume volume78
Issue issue3
Publisher Okayama University Medical School
Start Page 227
End Page 235
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Copyright Ⓒ 2024 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 38902210
Web of Science KeyUT 001267351000003
FullText URL fulltext20240513-01.pdf
Author Hagimori, Yusuke| Obuse, Kiori| Yamada, Michio|
Note This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Yusuke Hagimori, Kiori Obuse, Michio Yamada; Effect of non-local near-resonant interactions of Rossby waves on formation of large-scale zonal flows in unforced two-dimensional turbulence on rotating sphere. Physics of Fluids 1 March 2024; 36 (3): 036617. https://doi.org/10.1063/5.0201288 and may be found at https://doi.org/10.1063/5.0201288.|
Published Date 2024-03-19
Publication Title Physics of Fluids
Volume volume36
Issue issue3
Publisher AIP Publishing
Start Page 036617
ISSN 1070-6631
NCID AA10986202
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2024 Author(s).
File Version author
DOI 10.1063/5.0201288
Web of Science KeyUT 001187340000008
Related Url isVersionOf https://doi.org/10.1063/5.0201288
FullText URL fulltext.pdf
Author Obayashi, Ippei| Yoshiwaki, Michio|
Keywords Topological data analysis Persistent homology Algorithm Algebraic topology
Note The version of record of this article, first published in Discrete & Computational Geometry, is available online at Publisher’s website: http://dx.doi.org/10.1007/s00454-023-00544-7|
Published Date 2023-08-18
Publication Title Discrete & Computational Geometry
Volume volume70
Issue issue3
Publisher Springer Science and Business Media LLC
Start Page 645
End Page 670
ISSN 0179-5376
NCID AA1067900X
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © The Author(s) 2023
File Version publisher
DOI 10.1007/s00454-023-00544-7
Web of Science KeyUT 001051805700002
Related Url isVersionOf https://doi.org/10.1007/s00454-023-00544-7
JaLCDOI 10.18926/ESR/66846
FullText URL esr_030_021_035.pdf
Author MAURER, Robert| HARKER, Stuart| SUZUKI, Shigeyuki| WHEELER, Allan|
Abstract  Mantle convection currents are the currently accepted driving force for plate tectonics that have ripped apart the continents and created oceans. Because of these actions, continental collisions and ocean closures have resulted. Our paper challenges the conventional concept and provides an alternate, mathematically justified drive mechanism. The pull-push motions of such convection currents in the upper mantle are here concluded to be too weak to be the driving mechanism.
 Our proposal for such global scale forces concerns the effect of an offset centre of mass of the Earth that results in rotational wobbling. Kepler’s laws of planetary motion demonstrate the rotational behavior of the Earth to be aligned with the Sun on the outward and inward motions of the elliptical orbit. The unbalanced rotation on a fixed gravitational axis results in circumferential stresses on the outer Earth’s rim that is more than strong enough to pull the continental plates apart. The proposed unbalanced rotational stress force equation is shown to be sufficient to drive the cyclic breakup and reassembly of the continental plates, as well as the generation of new oceanic crust and subduction zones. Mantle convection currents are here demonstrated to have a passive rather than active role in the plate movements.
Keywords Differential circumferential tensile force Rotating Earth Offset centre of mass radius of eccentricity
Publication Title Okayama University Earth Science Report
Published Date 2024-03-31
Volume volume30
Issue issue1
Start Page 21
End Page 35
ISSN 1340-7414
language English
Copyright Holders © 2024 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved
File Version publisher
FullText URL srfa_113_041_048.pdf
Author Tanaka, Yu| Watanabe, Tomoya| Katsura, Keisuke| Tsujimoto, Yasuhiro| Takai, Toshiyuki| Tanaka, Takashi Sonam Tashi| Kawamura, Kensuke| Saito, Hiroki| Homma, Koki| Mairoua, Salifou Goube| Ahouanton, Kokou| Ibrahim, Ali| Senthilkumar, Kalimuthu| Semwal, Vimal Kumar| Matute, Eduardo Jose Graterol| Corredor, Edgar| El-Namaky, Raafat| Manigbas, Norvie| Quilang, Eduardo Jimmy P.| Iwahashi, Yu| Nakajima, Kota| Takeuchi, Eisuke| Saito, Kazuki|
Abstract Rice (Oryza sativa L.) is one of the most important cereals, which provides 20% of the world’s food energy. However, its productivity is poorly assessed especially in the global South. Here, we provide a first study to perform a deep learning-based approach for instantaneously estimating rice yield using RGB images. During ripening stage and at harvest, over 22,000 digital images were captured vertically downwards over the rice canopy from a distance of 0.8 to 0.9m at 4,820 harvesting plots having the yield of 0.1 to 16.1 t ha-1 across six countries in Africa and Japan. A convolutional neural network (CNN) applied to these data at harvest predicted 68% variation in yield with a relative root mean square error (rRMSE) of 0.22. Even when the resolution of images was reduced (from 0.2 to 3.2cm pixel-1 of ground sampling distance), the model could predict 57% variation in yield, implying that this approach can be scaled by use of unmanned aerial vehicles. Our work offers low-cost, hands-on, and rapid approach for high throughput phenotyping, and can lead to impact assessment of productivity-enhancing interventions, detection of fields where these are needed to sustainably increase crop production.
Keywords Rice (Oryza sativa L.) rough grain yield convolutional neural network RGB images UAV
Publication Title Scientific Reports of the Faculty of Agriculture, Okayama University
Published Date 2024-02-01
Volume volume113
Start Page 41
End Page 48
ISSN 2186-7755
language English
File Version publisher
FullText URL fulltext20240109-02.pdf
Author Tanaka, Yu| Watanabe, Tomoya| Katsura, Keisuke| Tsujimoto, Yasuhiro| Takai, Toshiyuki| Tanaka, Takashi Sonam Tashi| Kawamura, Kensuke| Saito, Hiroki| Homma, Koki| Mairoua, Salifou Goube| Ahouanton, Kokou| Ibrahim, Ali| Senthilkumar, Kalimuthu| Semwal, Vimal Kumar| Matute, Eduardo Jose Graterol| Corredor, Edgar| El-Namaky, Raafat| Manigbas, Norvie| Quilang, Eduardo Jimmy P.| Iwahashi, Yu| Nakajima, Kota| Takeuchi, Eisuke| Saito, Kazuki|
Published Date 2023-07-28
Publication Title Plant Phenomics
Volume volume5
Publisher American Association for the Advancement of Science (AAAS)
Start Page 0073
ISSN 2643-6515
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders © 2023 Yu Tanaka et al.
File Version publisher
DOI 10.34133/plantphenomics.0073
Web of Science KeyUT 001124487900004
Related Url isVersionOf https://doi.org/10.34133/plantphenomics.0073
FullText URL mjou_066_171_187.pdf
Author Tarmidi, Rani Sasmita|
Abstract In this work, we provide explicit conditions for the coeffi-cients of a symmetric truncated cubic to give a smooth tropical curve. We also examine non-smooth cases corresponding to some specific sub-division types.
Keywords tropical curves smooth tropical curves symmetric truncated cubic
Published Date 2024-01
Publication Title Mathematical Journal of Okayama University
Volume volume66
Issue issue1
Publisher Department of Mathematics, Faculty of Science, Okayama University
Start Page 171
End Page 187
ISSN 0030-1566
NCID AA00723502
Content Type Journal Article
language English
Copyright Holders Copyright ©2024 by the Editorial Board of Mathematical Journal of Okayama University
FullText URL mjou_066_159_169.pdf
Author Shiraishi, Densuke|
Abstract In this paper, we derive formulas of complex and ℓ-adic multiple polylogarithms, which have two aspects: a duality in terms of indexes and a reflection in terms of variables. We provide an algebraic proof of these formulas by using algebraic relations between associators arising from the S3-symmetry of the projective line minus three points.
Keywords multiple polylogarithm ℓ-adic Galois multiple polylogarithm duality-reflection formula
Published Date 2024-01
Publication Title Mathematical Journal of Okayama University
Volume volume66
Issue issue1
Publisher Department of Mathematics, Faculty of Science, Okayama University
Start Page 159
End Page 169
ISSN 0030-1566
NCID AA00723502
Content Type Journal Article
language English
Copyright Holders Copyright ©2024 by the Editorial Board of Mathematical Journal of Okayama University
FullText URL mjou_066_135_157.pdf
Author Davis, Daniel G.|
Abstract Let n ≥ 1, p a prime, and T(n) any representative of the Bousfield class of the telescope v−1n F(n) of a finite type n complex. Also, let En be the Lubin-Tate spectrum, K(En) its algebraic K-theory spectrum, and Gn the extended Morava stabilizer group, a profinite group. Motivated by an Ausoni-Rognes conjecture, we show that there are two spectral sequences
IEs,t2 ⇒ πt−s((LT(n+1)K(En))hGn) ⇐ IIEs,t2
with common abutment π∗(−) of the continuous homotopy fixed points of LT(n+1)K(En), where IEs,t2 is continuous cohomology with coefficients in a certain tower of discrete Gn-modules. If the tower satisfies the Mittag-Leffler condition, then there are isomorphisms with continuous cochain cohomology groups:
IE∗,∗2 ≅ H∗cts(Gn, π∗(LT(n+1)K(En))) ≅ IIE∗,∗2.
We isolate two hypotheses, the first of which is true when (n, p) = (1, 2), that imply (LT(n+1)K(En))hGn ≃ LT(n+1)K(LK(n)S0). Also, we show that there is a spectral sequence
Hscts(Gn, πt(K(En) ⊗ T(n + 1))) ⇒ πt−s((K(En) ⊗ T(n + 1))hGn).
Keywords Algebraic K-theory spectrum continuous homotopy fixed point spectrum Lubin-Tate spectrum Morava stabilizer group homotopy fixed point spectral sequence telescopic localization
Published Date 2024-01
Publication Title Mathematical Journal of Okayama University
Volume volume66
Issue issue1
Publisher Department of Mathematics, Faculty of Science, Okayama University
Start Page 135
End Page 157
ISSN 0030-1566
NCID AA00723502
Content Type Journal Article
language English
Copyright Holders Copyright ©2024 by the Editorial Board of Mathematical Journal of Okayama University
FullText URL mjou_066_125_133.pdf
Author Singh, Gagandeep| Singh, Gurcharanjit|
Abstract The aim of this paper is to introduce a new subclass of strongly close-to-convex functions by subordinating to Janowski function. Certain properties such as coefficient estimates, distortion theorem, argument theorem, inclusion relations and radius of convexity are established for this class. The results obtained here will generalize various earlier known results.
Keywords Analytic functions Subordination Janowski-type function Close-to-convex functions Distortion theorem Argument theorem Coefficient bounds
Published Date 2024-01
Publication Title Mathematical Journal of Okayama University
Volume volume66
Issue issue1
Publisher Department of Mathematics, Faculty of Science, Okayama University
Start Page 125
End Page 133
ISSN 0030-1566
NCID AA00723502
Content Type Journal Article
language English
Copyright Holders Copyright ©2024 by the Editorial Board of Mathematical Journal of Okayama University
FullText URL mjou_066_115_124.pdf
Author Maruyama, Takashi| Seto, Tatsuki|
Abstract In this paper, we generalize the Cantor function to 2-dimensional cubes and construct a cyclic 2-cocycle on the Cantor dust. This cocycle is non-trivial on the pullback of the smooth functions on the 2-dimensional torus with the generalized Cantor function while it vanishes on the Lipschitz functions on the Cantor dust. The cocycle is calculated through the integration of 2-forms on the torus by using a combinatorial Fredholm module.
Keywords Fredholm module Cantor dust cyclic cocycle
Published Date 2024-01
Publication Title Mathematical Journal of Okayama University
Volume volume66
Issue issue1
Publisher Department of Mathematics, Faculty of Science, Okayama University
Start Page 115
End Page 124
ISSN 0030-1566
NCID AA00723502
Content Type Journal Article
language English
Copyright Holders Copyright ©2024 by the Editorial Board of Mathematical Journal of Okayama University
FullText URL mjou_066_103_113.pdf
Author Puthenpurakal, Tony J.|
Abstract Let (A,m) be an excellent Henselian Cohen-Macaulay local ring of finite representation type. If the AR-quiver of A is known then by a result of Auslander and Reiten one can explicity compute G(A) the Grothendieck group of finitely generated A-modules. If the AR-quiver is not known then in this paper we give estimates of G(A)Q = G(A) ⊗Z Q when k = A/m is perfect. As an application we prove that if A is an excellent equi-characteristic Henselian Gornstein local ring of positive even dimension with char A/m ≠ 2, 3, 5 (and A/m perfect) then G(A)Q ≅ Q.
Keywords Grothendieck group finite representation type AR sequence
Published Date 2024-01
Publication Title Mathematical Journal of Okayama University
Volume volume66
Issue issue1
Publisher Department of Mathematics, Faculty of Science, Okayama University
Start Page 103
End Page 113
ISSN 0030-1566
NCID AA00723502
Content Type Journal Article
language English
Copyright Holders Copyright ©2024 by the Editorial Board of Mathematical Journal of Okayama University
FullText URL mjou_066_085_102.pdf
Author Akorede, Moses B.| Arawomo, Peter O.|
Abstract In this paper, we discuss the existence and uniqueness of positive solutions to a singular boundary value problem of fractional differential equations with three-point integral boundary conditions. The nonlinear term f possesses singularity and also depends on the first-order derivative u′. Our approach is based on Leray-Schauder fixed point theorem and Banach contraction principle. Examples are presented to confirm the application of the main results.
Keywords Fractional derivative positive solutions singularity three-point boundary value problem cone
Published Date 2024-01
Publication Title Mathematical Journal of Okayama University
Volume volume66
Issue issue1
Publisher Department of Mathematics, Faculty of Science, Okayama University
Start Page 85
End Page 102
ISSN 0030-1566
NCID AA00723502
Content Type Journal Article
language English
Copyright Holders Copyright ©2024 by the Editorial Board of Mathematical Journal of Okayama University
FullText URL mjou_066_071_083.pdf
Author Jinzenji, Masao| Tajima, Yu|
Abstract In this paper, we first propose a cohomological derivation of the celebrated Euler’s Pentagonal Number Theorem. Then we prove an identity that corresponds to a bosonic extension of the theorem. The proof corresponds to a cohomological re-derivation of Euler’s another celebrated identity.
Keywords partitions of integers cohomology Euler number Euler’s pentagonal number theorem
Published Date 2024-01
Publication Title Mathematical Journal of Okayama University
Volume volume66
Issue issue1
Publisher Department of Mathematics, Faculty of Science, Okayama University
Start Page 71
End Page 83
ISSN 0030-1566
NCID AA00723502
Content Type Journal Article
language English
Copyright Holders Copyright ©2024 by the Editorial Board of Mathematical Journal of Okayama University
FullText URL mjou_066_063_069.pdf
Author Kishi, Yasuhiro| Yamada, Mei|
Abstract In this article, we give two families of dihedral quintic polynomials by using the Weber sextic resolvent and a certain elliptic curve.
Keywords Quintic polynomials Galois group
Published Date 2024-01
Publication Title Mathematical Journal of Okayama University
Volume volume66
Issue issue1
Publisher Department of Mathematics, Faculty of Science, Okayama University
Start Page 63
End Page 69
ISSN 0030-1566
NCID AA00723502
Content Type Journal Article
language English
Copyright Holders Copyright ©2024 by the Editorial Board of Mathematical Journal of Okayama University
FullText URL mjou_066_045_061.pdf
Author Nakamura, Tomoya|
Abstract We define Dirac pairs on Jacobi algebroids, which is a generalization of Dirac pairs on Lie algebroids introduced by Kosmann-Schwarzbach. We show the relationship between Dirac pairs on Lie and on Jacobi algebroids, and that Dirac pairs on Jacobi algebroids characterize several compatible structures on Jacobi algebroids.
Keywords Dirac pair Dirac structure Jacobi algebroid Lie algebroid
Published Date 2024-01
Publication Title Mathematical Journal of Okayama University
Volume volume66
Issue issue1
Publisher Department of Mathematics, Faculty of Science, Okayama University
Start Page 45
End Page 61
ISSN 0030-1566
NCID AA00723502
Content Type Journal Article
language English
Copyright Holders Copyright ©2024 by the Editorial Board of Mathematical Journal of Okayama University