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JaLCDOI 10.18926/fest/12830
FullText URL 13_067_074.pdf
Author Md. Shamin Abul Hasnat| Rashid Khan Md. Harunor| Akae, Takeo|
Abstract An incubation study was conducted with the topsoils (depth: 0-20 cm) of two different series namely Cheringa (silty clay loam, pHwater 3.6, electrical conductivity = EC 18.5 dS m-1, CEC 17.2 c mol kg-1, organic matter = OM 39.1 g kg-1, and Badarkhali (silty clay loam, pHwater 3.9, EC 19.0 dS m-1, CEC 18.40 c mol kg-1, OM 30.7 g kg-1) acid sulfate soils to evaluate the effectiveness of basic slag (BS) for the neutralization of acidity and solubility of basic cations. These soils received BS at the rate of 0, 11, 22 and 33 t ha-1 under various moisture regimes (moisture at saturated condition, i.e. 100 % moisture, moisture at field condition, i.e. 50 % and wetting-drying cycles of those 50 and 100 % moisture levels). The impacts of these treatments on some selected properties and changes in water soluble bases in these soils were studied at different periods of 180 days of incubation. The application of BS was found to be increased the pH of soils from 3.6 to 5.1 for Cheringa; 3.9 to 5.2 for Badarkhali soils during the 180 days of incubation. These increments were more striking with the highest doses of BS at 33 t ha-1 under saturated moisture conditions in both the soils. The EC of the soils had not much influenced by the application of BS, regardless of time. The treatments were exerted significant (p≤0.05) effects on the solubility of basic cations in different periods of incubation. The maximum release of the bases were recorded during 180 days of incubation under saturated moisture condition and the findings will be supportive for planning of crop production on these soils.
Keywords acid sulfate soils basic cations basic slag incubation time moisture regimes
Publication Title 岡山大学環境理工学部研究報告
Published Date 2008-03
Volume volume13
Issue issue1
Start Page 67
End Page 74
ISSN 1341-9099
language English
File Version publisher
NAID 120002304866
Author Morisawa, Tetsuo| Kato, Kenji|
Published Date 2008-02
Publication Title 岡山大学農学部学術報告
Volume volume97
Issue issue1
Content Type Departmental Bulletin Paper
Author Morisawa, Tetsuo| Kato, Kenji|
Published Date 2008-02
Publication Title 岡山大学農学部学術報告
Volume volume97
Issue issue1
Content Type Departmental Bulletin Paper
JaLCDOI 10.18926/11760
Title Alternative Alteration of thermostable phosphatase activity after hydrophobic chromatography
FullText URL 007_1_017_021.pdf
Author Mori, Shuji| Okamoto, Motoi| Nakata, Yasunari| Endo, Hiroshi|
Abstract 耐熱性ホスファターゼを含んだBacillus stearothermophilus 粗酵素試料を、リソースIsoによる疎水性クロマトグラフィにかけ分離を行った。1.5M→0M 硫酸アンモニウムの直線逆濃度勾配によって溶出を行ったところ、ホスファターゼは不活性な形で溶出され、これは硫酸アンモニウムによる濃度依存的阻害に起因することが判明した。ホスタファーゼの反応混合液に種々の濃度の硫酸アンモニウムを添加したところ、0.15Mの硫酸アンモニウム存在下で約80%の阻害が認められた。加えて、この阻害作用は単に硫酸アンモニウムの添加によってpHが酸性側に傾くことによるものではないことも明らかとなった。
Keywords 耐熱性ホスファターゼ (thermophilic phosphatase) 疎水性クロマトグラフィ (hydrophobic chromatography) 硫酸アンモニウム (ammonium sulfate) 濃度依存的阻害 (dose- dependent inhibition)
Publication Title 岡山大学医療技術短期大学部紀要
Published Date 1996-08-30
Volume volume7
Issue issue1
Start Page 17
End Page 21
ISSN 0917-4494
language Japanese
File Version publisher
NAID 120002314041
Author Hamasaki, Ichiro|
Published Date 2007-03-23
Publication Title
Content Type Thesis or Dissertation
JaLCDOI 10.18926/11714
Title Alternative スクリーン/フィルム乳房撮影法における乳房線量測定システム
FullText URL 010_2_099_106.pdf
Author Goto, Sachiko| Azuma, Yoshiharu| Maruyama, Toshinori| Nakagiri, Yoshitada| Takeda, Yoshihiro| Sugita, Katsuhiko| Kadohisa, Shigefumi|
Abstract The average glandular dose to glandular tissue m mammography is generally assumed to be a function of beam quality (HVL), x-ray tube target material, tube voltage, breast thickness, breast composition and, to a lesser extent, x-ray tube voltage waveform. The average glandular dose is generally determined from published tables with knowledge of the above function. Tables for a high frequency x-ray generator are not yet published. In our study, the lookup tables for the average glandular dose were made at 28 kV (high frequency x-ray generator), employing a breast simulating tissue (0-100% adipose tissue, 0-100% glandular tissue) phantom for an Mo target - Mo filter source assembly. We tried to estimate breast composition from x-ray mammograms by digital image processing techniques, also using the simulating tissue phantom. Then the system that automatically calculates the average glandular dose from digitized clinical x-ray mammograms was built. It is considered that this system can contribute to objective evaluation of the average glandular dose.
Keywords Screen/Film Mammography (スクリーン/フィルム乳房撮影法) Breast composition (乳房構成) Average glandular dose (平均乳腺線量) Entrance skin exposure (皮膚入射線量) Breast-equivalent material phantom (乳房組織等価ファントム)
Publication Title 岡山大学医学部保健学科紀要
Published Date 2000-03-24
Volume volume10
Issue issue2
Start Page 99
End Page 106
ISSN 1345-0948
language English
File Version publisher
NAID 120002313736
Author Sugata, Yuji|
Published Date 2007-03-23
Publication Title
Content Type Thesis or Dissertation
JaLCDOI 10.18926/11668
Title Alternative カンジダ特異的IgG(4)抗体と気管支喘息
FullText URL 062_001_004.pdf
Author Tanizaki, Yoshiro| Kitani, Hikaru| Okazaki, Morihiro| Mifune, Takashi| Mitsunobu, Fumihiro| Takatori, Akimasa| Okuda, Hiroyuki| Harada, Hideo|
Abstract Serum levels of Candida-specific IgG(4) antibodies were examined in 66 patients with bronchial asthma, relating to patient age and asthma severity. 1. The levels of Candida-specific IgG(4) antibodies were the highest in patients with 60+years of age, compared to the levels in cases with 0-39 and 40-59 years of age. 2. In cases with 40-59 years of age, the levels of Candida-specific IgG(4) were significantly higher in cases with long-term steroid therapy (severe intractable asthma) than in cases without steroid regimen. The results suggest that increased levels of Candida-specific IgG(4) were observed in relation to patient age and asthma severity.
Keywords Candida (カンジダ) Sepcific IgG(4) (特異的IgG(4)) Bronchial asthma (気管支喘息) Aging (加齢) Asthma severity (喘息重症度)
Publication Title 環境病態研報告
Published Date 1991-08
Volume volume62
Start Page 1
End Page 4
ISSN 0913-3771
language English
File Version publisher
NAID 120002313495
JaLCDOI 10.18926/fest/11623
Title Alternative Rain-water Retention of a Small-scale Upland Field in a Rainy Year and a Droughty Year
FullText URL 001_143_149.pdf
Author Yomota, Atsushi|
Abstract From the standpoint of water resources development and environmental preservation, rain water retentivity of agricultural and forest lands are evaluated. Measurement of rainfall and runoff has been carried out at the reclaimed upland field of 4.55 ha since 1981. In this article, water retention characteristics of this study basin is compared in a rainy year of 1993 and a droughty year of 1994. In cases of rainfall less than 20mm, most of the rain water infiltrates into the soil layer. On the other hand, about 75% of a heavy rain, such as 300 mm in 1993, runs off the soil surface. Within the infiltrating rain water, the ratio of water which is kept by capillary action and can be used by crops is estimated to be less than 40% in months of rainfall more than 150 mm, but in months of rainfall less than 50 mm, it is estimated that more than 80% of rainfall can be used by crops. The ratio of monthly rainfall which contributes to base flow recharge is 0 to 12% regardless of rainfall amount.
Keywords upland field monthly rainfall rain water retention effective rainfall base flow recharge
Publication Title 岡山大学環境理工学部研究報告
Published Date 1996-03
Volume volume1
Issue issue1
Start Page 143
End Page 149
ISSN 1341-9099
language Japanese
File Version publisher
NAID 120002313677
JaLCDOI 10.18926/fest/11601
FullText URL 001_001_013.pdf
Author Morimoto, Masaharu| Yanagihara, Mamoru|
Abstract In transformation groups on manifolds, it has been an interesting problem to ask whether for a given finite group G, there exists a real G-module V such that dim VP >2dimV>P for all subgroups P of prime power order and such that VH=0 for certain large subgroups H of G. This paper provides GAP programs to show that S5 does not admit such a real S5-module V.
Keywords GAP fixed point gap condition
Publication Title 岡山大学環境理工学部研究報告
Published Date 1996-03
Volume volume1
Issue issue1
Start Page 1
End Page 13
ISSN 1341-9099
language English
File Version publisher
NAID 120002313410
JaLCDOI 10.18926/11579
Title Alternative 気管支喘息患者末梢血好塩基球の抗ヒトIgEおよびカルシウムイオノフォァA23187に対する反応性について
FullText URL 061_016_022.pdf
Author Tanizaki, Yoshiro| Sudo, Michiyasu| Kitani, Hikaru| Kawauchi, Kazuhisa| Mifune, Takashi| Okuda, Hiroyuki| Komagoe, Haruki| Tada, Shinya| Takahashi, Kiyoshi| Kimura, Ikuro|
Abstract The release of histamine from basophils induced by anti-lgE and calcium ionophore A 23187 ( Cal) was examined in 27 patients with bronchial asthma and 7 healthy subjects, using a whole blood method. (1)The release of histamine induced by anti-IgE and CaI was significantly higher in atopic asthmatics than in non-atopic cases. (2) The histamine release with anti-lgE and CaI was significantly lower in cases with long-term steroid therapy compared to the release in cases without steroid therapy. (3) The release with anti-lgE and CaI was increased in cases with age of 0-39 years and in cases wpth age at onset of 0-39 years. (4) Anti-IgE induced release correlated to a certain extent with the release induced by CaI. These results show that basophil reactivity as expressed by histamine release changes under different conditions.
Keywords Histamine release (ヒスタミン遊離) Basophils (好塩基球) Anti-lgE (抗ヒトIgE) Calcium ionophore A 23187 (カルシウムイオノフォァA23187) Bronchial asthma (気管支喘息)
Publication Title 環境病態研報告
Published Date 1990-09
Volume volume61
Start Page 16
End Page 22
ISSN 0913-3771
language English
File Version publisher
NAID 120002313673
JaLCDOI 10.18926/fest/11554
FullText URL 003_005_009.pdf
Author Ishikawa, Hirofumi|
Abstract We investigate the Maass wave form for Γ(0)(2) whose eigenvalue of Laplacian Δ is 1/4-π(2)/log(2)(√2-1). In this note, we study the methods of calculation of its Fourier coefficients and carry out the numerical calculations.
Publication Title 岡山大学環境理工学部研究報告
Published Date 1998-01-14
Volume volume3
Issue issue1
Start Page 5
End Page 9
ISSN 1341-9099
language English
File Version publisher
NAID 120002313535
JaLCDOI 10.18926/fest/11539
Title Alternative One-dimensional Compression Tests of Sludge Cake from Dredged Sludge
FullText URL 006_085_097.pdf
Author Wakitani, Yoshiaki| Fujii, Hiroaki| Nishimura, Shin-ichi| Inoue, Takashi|
Abstract One-dimensional compression tests were performed to investigate compression characteristics of sludge cake used as a construction material. The sludge cake is dewatering product of dredged sludge from the bottom of a lake. The test results show following compression characteristics. (1) For the undisturbed samples, e-log p curves show compressibility of overconsolidated clay ordinatily observed. (2) For the disturbed samples, there observed compressibility close to that of ordinary normally consolidated clay. (3) For the recompressed samples, there observed two turning points on e-log p curve. The compression presures(p(c1) and p(c2)) at those points for the unsubmerged tests have a linear correlation with the recompression pressure(p(s)). The submerged tests give very small values of p(c1) and p(c2) compared with the case of unsubmerged test. (4) For the recompressed samples, the first compression index(C(c1)) after p(c) has a linear correlation with the initial void ratio(e(0)), and the second compression index(C(c2)) shows almost constant value.
Keywords sludge cake one-dimensional compression test e~log p curve compression index void ratio
Publication Title 岡山大学環境理工学部研究報告
Published Date 2001-02-28
Volume volume6
Issue issue1
Start Page 85
End Page 97
ISSN 1341-9099
language Japanese
File Version publisher
NAID 120002313853
JaLCDOI 10.18926/fest/11534
FullText URL 007_099_106.pdf
Author Kamboh Maqsood Ahmed| Oki, Yoko| Adachi, Tadashi|
Abstract A few wheat varieties including two Japanese wheat varieties were evaluated for their salt tolerance at seeding stage, their behavior to increasing salinity levels and role of Na exclusion capacity in salt tolerance mechanisms. The wheat varieties were grown in nutrient solution and subjected to 0 (control), 25,75 and 125 mM NaCl salinity levels for 7 days. Although the shoot growth was reduced while Na contents were increased progressively with increasing salinity in all varieties, the varieties were quite different in their response. Salt tolerant va rieties maintained less reduction in their root and shoot growth and better water relations in their shoots than salt sensitive varieties under saline conditions. The wheat varieties were quite different in their Na exclusion capacity. Poor growth in salt sensitive varieties might be due to higher accumulation of Na in their shoots resulting from low Na exclusion capacity of roots, higher Na transport to shoot and/or inferior compartmentation capability.
Keywords growth and mineral composition increasing salinity Na exclusion capacity salt tolerance wheat varieties
Publication Title 岡山大学環境理工学部研究報告
Published Date 2002-03-22
Volume volume7
Issue issue1
Start Page 99
End Page 106
ISSN 1341-9099
language English
File Version publisher
NAID 120002313704
JaLCDOI 10.18926/fest/11443
FullText URL 012_083_089.pdf
Author Khan Md. H. R.| Rahman Md. K.| Rouf A. J. M. A.| Sattar G. S.| Akhtar M. S.| Oki, Yoko| Adachi, Tadashi|
Abstract The pH values in the profiles of unburnt (agricultural land) soils were found to increase as a function of soil depth and burning (400 to 1000℃) of the soils increased average pH by 8%. The average sand content of the burnt (soil around brick kilns) soil profiles was increased by 245%, while 39 and 36% decreased the silt and clay contents. Soil organic carbon (Corg) in the unburnt soils (0-20 cm) at different agro-ecological zones in the eastern region of Bangladesh ranged from 0.8 and 1.4%, whereas the content of microbial biomass carbon (Cmic) in the studied unburnt soils ranged between 5 and 7% of the total Corg, suggesting that the microbial biomass releasing considerable amounts of carbon in soil while burning of the soils drastically reduced this contribution to about 1%. The values of soil Cmic in the unburnt soils were approximately 2 to 6 times higher in the topsoils than the subsoils (20-60 cm). Variable rainfall, temperature and soil fertility had an overriding influence, which was reflected by the average minimum (276 μg g(-1)) and maximum (439) amounts of soil Cmic in Moulvibazar and Cox' Bazar sites. The Cmic decreased upon soil burning by 92% of its original average value (346 μg g(-1)) in the soil profile of up to 100 cm. Burning of topsoils strikingly increased the Corg/Cmic ratio by about 6 to 9 times, while reduced the C/N ratio by about 1.5 to 2.5 times. The average loss of Corg, available and total N due to burning of the soils were 66, 72 and 44% (increase over average content of unburnt soil: IOAC), respectively, which suggests that the burning of the soils offset the essential roles of soil microorganisms, reduced soil fertility and soil microbial contribution.
Keywords brick burning C/N ratio microbial biomass carbon soil organic carbon ratio of microbial biomass to organic carbon.
Publication Title 岡山大学環境理工学部研究報告
Published Date 2007-03-15
Volume volume12
Issue issue1
Start Page 83
End Page 89
ISSN 1341-9099
language English
File Version publisher
NAID 120002313396
Title Alternative ホウレンソウ種子に存在するα-グルコシダーゼの分子多型変化
FullText URL 005_001_001_009.pdf
Author Furui, Satoshi| Sugimoto, Manabu| Suzuki, Yukio|
Abstract Two molecular forms of α-glucosidase were isolated from spinach seeds after storage at 4℃ by CM-cellulose column chromatography and gel filtration. The molecular masses of α-glucosidase A and B were 78 kDa and 82 kDa by SDS-PAGE, and 62 kDa and 70 kDa by gel filtration, respectively. α-Glucosidase A had high activity not only toward maltooligosaccharides but also toward α-glucans. The optimum pH was 4.5-5.5 and about 50% of the activity remained after incubation at 65℃ for 20 min. On the other hand, α-glucosidase B had high activity toward maltooligosaccharides but faint activity toward α-glucans. The optimum pH was 5.0 and no activity was found after incubation at 65℃ for 20 min. The enzymatic and immunological properties of α-glucosidase A and B were similar to those of α-glucosidase. Ⅰor Ⅱ, and α-glucosidase Ⅲ or Ⅳ, isolated from spinach seeds without 4℃ storage, respectively. These findings suggest that the α-glucosidase in spinach seeds is modified to be two molecular forms.
Keywords Spinach α-Glucosidase Multiple molecular forms
Publication Title 岡山大学資源生物科学研究所報告
Published Date 1997
Volume volume5
Issue issue1
Start Page 1
End Page 9
ISSN 0916-930X
language English
File Version publisher
Title Alternative The Characteristics of Trace Metal Distribution of Artificial and Natural-Origin Suspended Particulate Matter (SPM) by grain size
FullText URL 006_001_029_041.pdf
Author Muramoto, Shigeki| Maitani, Toshihiko| Hiraoka, Naoko| Aoyama, Isao|
Abstract Air pollution caused by suspended particulate matter (SPM) has increased remarkedly in industrial areas, and this has become an emergency issue in the global environment. Atomospheric SPM influences the local ecosystem including various plants and animals. It is necessary to examine the distribution characteristics of such trace metals in fine particulates (especially those with a diameter (φ) of less than 2.1μm). The Environment Agency of the Japanese goverment will complete analysis of the a concentration of suspended particulate matter less than 2.4μm by the end of 1999, and will be examining the relationship between the concentration of suspended particulate matter (0.1-9.0μm) with consideration given to the particle size throughout two years. It became clear that the metals of artificial origin such as Pb, V, Cd, Ni, Cr, existed in fine particulates (0.1 or more 2.0μm). By contrast, the metals of natural origin, such as Ti, Mn, Mg, Sr, mainly existed in coarse Area in Japan.
Keywords Atomospheric Suspended particulate matter (SPM) Natural-origin metal Artificial-origin metal Biological effects
Publication Title 岡山大学資源生物科学研究所報告
Published Date 1999
Volume volume6
Issue issue1
Start Page 29
End Page 41
ISSN 0916-930X
language Japanese
File Version publisher
Title Alternative QTL Mapping for Water Sensitivity in Barley Seeds
FullText URL 006_001_021_028.pdf
Author Iwasa, Tomohiko| Takahashi, Hidekazu| Takeda, Kazuyoshi|
Abstract Sensitivity to water condition during germination is an important character in malting barley because it affects malt poduction. Water sensitivity in malting barley is defined as the defference in germination percentage between the seeds in standard and excess-water conditions. Usually standard and excess-water condition means 4 and 8 ml water in a 90 mm perti dish, respectively. Takeda and Fukuyama (1983) examined more than 4,000 barley accessions and found 0~100% water sensitivity. This means complete to no suppression of germination by an excess-water condition. In this study, quantiative trait loci (QTL) analysis was applied to analize the inheritance of water sensitivity. Two sets of doubled haploid (DH) populations derived from Steptoe×Morex (S/M) and Harrington×TR306 (H/T) crosses,were grown in the experiment field of the Research Institute for Bioresources, Okayama University. Bulbosum method was adapted to develop DH lines (Chen and Hayes 1989). Water sensitivities of 150 (S/M) and (H/T) lines and their parents were evaluated using 50 seeds each and the germination test (25℃, 4 days) was repeated four times. Water sensitivity showed a large variation (Fig.1) and the heritability of the trait was 0.78 and 0.72 in S/M and H/T, respectively, indicating that about three-quarters of the phenotypic variance was genetic in origin. Three (S/M) and one (H/T) significant QTL were detected and 23% (S/M) and 25% (H/T) of the phenotypic variance was explained by the QTL. These QTL were located on chromosomes 2H,3H,6H and 7H (Table 1, Fig. 2). QTL relating to germination traits were lacated near the QTL controlling water sensitivity (Fig. 3). Interaction among the QTL was small (Table 2). Marker-assisted selection was effective (Table 3).
Keywords barley water sensitivity QTL analysis
Publication Title 岡山大学資源生物科学研究所報告
Published Date 1999
Volume volume6
Issue issue1
Start Page 21
End Page 28
ISSN 0916-930X
language Japanese
File Version publisher
Title Alternative Estimation of Turbulent Fluxes by Gradient Method with Surface Temperatures of Rice Plant Canopy
FullText URL 006_001_001_011.pdf
Author Miyashita, Koichi| Maitani, Toshihiko|
Abstract Micrometeorological observations including turbulent fluxes and canopy surface temperatures were made in paddy in the summer of 1997. The sensible and latent heat fluxes were estimated by the gradient method under the assumption of similarity between the turbulent exchange coefficient for momentum and that for heat and water vapor. The surface temperatures measured by a thermal imager and water vapor pressures estimated from surface temperatures and relative humidity were used for temperature and water vapor at the height(d+z0) of U=0, where d is the displacement height, z0 the roughness length and U the mean wind velocity. The sensible and latent heat fluxes estimated by the gradient method depicted typical diurnal varietions. The turbulent fluxes by the present method and eddy correlation method showed fairly good agreement, especially for latent heat fluxes. These results confirmed that this method is a promising one.
Keywords Surface temperature Rice plant canopy Thermal imager Turbulent fluxes
Publication Title 岡山大学資源生物科学研究所報告
Published Date 1999
Volume volume6
Issue issue1
Start Page 1
End Page 11
ISSN 0916-930X
language Japanese
File Version publisher