Author Kondō, Mantarō|
Published Date 1919-11-10
Publication Title Berichte des Ohara Instituts für landwirtschaftliche Forschungen
Volume volume1
Issue issue4
Content Type Departmental Bulletin Paper
Author Kondō, Mantarō|
Published Date 1925-05-30
Publication Title Berichte des Ohara Instituts für landwirtschaftliche Forschungen
Volume volume2
Issue issue5
Content Type Departmental Bulletin Paper
Author Kondō, Mantarō|
Published Date 1927-12-01
Publication Title Berichte des Ohara Instituts für landwirtschaftliche Forschungen
Volume volume3
Issue issue5
Content Type Departmental Bulletin Paper
Author Nisikado, Yosikazu| Miyake, Chūichi|
Published Date 1925-07-25
Publication Title Berichte des Ohara Instituts für landwirtschaftliche Forschungen
Volume volume2
Issue issue5
Content Type Departmental Bulletin Paper
Author Wakimoto, Kyoko|
Published Date 2008-02-25
Publication Title 岡山大学教育学部研究集録
Volume volume137
Issue issue1
Content Type Departmental Bulletin Paper
JaLCDOI 10.18926/fest/11454
FullText URL 012_107_117.pdf
Author Akhtar M. Shahbaz| Oki, Yoko| Adachi, Tadashi| Khan Md. H. R.|
Abstract Acclimation to orthophosphate (Pi) deprivation via highly coordinated Pi-starvation induced (PSI) classical mechanisms such as copious quantities of H(+) and carboxylates (OAs) exudation, remodeling and modification of root architecture by increasing structural and functional plasticity, enhanced uptake rate and increased synthesis of Pi transporters would reduce or eliminate our current overreliance on expensive, polluting, and nonrenewable Pi-fertilizers. These complicated but elegant morphological, physiological, biochemical and molecular adjustments of Pi-starved plants provide an excellent example of how the unique flexibility of plant metabolism and energy transduction helps them to cope in a typically stressful environment. Pi-starved roots possess enhanced H(+)-ATPase and PEPCase which could result in increasing H(+) efflux and OAs exudations in the root vicinity. This would lead to the rhizosphere acidification, which thereby contribute to the solublization and assimilation of mineral Pi from environment. To visualize the dissolution of sparingly soluble Ca-phosphate and rhizospheric pH changes (in situ), genetically diverse Brassica cultivars were grown on agar media. Newly formed Ca-phosphate was suspended in agar containing other essential nutriens. With NH(4)(+) applied as the N source, the precipitate dissolved in the root vicinity and this was ascribed to acidification. No dissolution was occurred with No(3)(-)-nutrition. In order to observe the pH changes at the media-root interface (rhizosphere), an image analysis was carried out after embedding the roots in agar containing bromocresol purple as pH indicator. Efficient cultivar 'Brown Raya' showed greater decrease in pH than P-inefficient 'B.S.A' in the culture media. Hydroponically grown cultivars were compared with respect to P-utilization efficiency (PUE), P-stress factor (PSF), and Ca- and P-uptake at P-starvation. PUE, and Ca- and P-uptake correlated significantly (P<0.01) with biomass accumulation, indicating that higher P-uptake of efficient cultivars was because of their higher Ca-uptake, which in turn was related to their better P-acquisition and PUE. Remodelling of root architecture of efficient cultivars helped the cultivars to establish a better rooting system, which provided basis for tolerance under P-starvation.
Keywords Brassica Bromocresol purple H(+) -efflux Rhizospheirc pH changes and acidification PUE
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 107
End Page 117
ISSN 1341-9099
language 英語
File Version publisher
NAID 120002313432
Author 黒﨑 東洋郎|
Published Date 2015-10-31
Publication Title 岡山大学算数・数学教育学会誌 : パピルス
Volume volume22
Content Type Departmental Bulletin Paper
JaLCDOI 10.18926/fest/11506
FullText URL 010_105_109.pdf
Author Alam Ashraful| Takaguchi, Yutaka| Tsuboi, Sadao|
Abstract Ortho-monobromination of phenols and polyphenols by 1,3-dibromo-5,5-dimethylhydantoin (DBDMH) is described. A simple addition of commercially available DBDMH to phenols and polyphenols in chloroform at room temperature resulted in a good to excellent yield of corresponding ortho-monobromo derivatives.
Keywords ortho-monobromination phenol polyphenol DBDMH
Publication Title 岡山大学環境理工学部研究報告
Published Date 2005-02-28
Volume volume10
Issue issue1
Start Page 105
End Page 109
ISSN 1341-9099
language 英語
File Version publisher
NAID 120002313473
JaLCDOI 10.18926/15126
Title Alternative Pelvimetry with smaller radiation field by CC・DR system- An examination on applying to lateral radiography of the pelvis (Guthmann) ―
FullText URL 066_062_071.pdf
Author Nakai, Mutsuo| Akiyama, Tsuneo| Nakagiri, Yoshiyasu| Kobayashi, Yasuaki|
Abstract 100万画素CCDカメラを用いたI.I.-DR装置(CC・DRシステム)をX線骨盤計測に適用するため,被曝線量をはじめとするいくつかの点を検討した。照射野内の被曝線量は従来の高感度Screen-Film システムであるG12/HRSと同等以下に抑えることが可能であった。また,CC・DRシステムの9インチ円形照射野は一般的に用いられている大角フィルム面積の1/3であり,胎位の95%を占めるといわれている頭位の撮影においては胎児の生殖腺はもちろん, 赤色骨髄を多く含む脊椎への被曝を大幅に低減できた。また,新たに開発された距離計測ソフトウェアーの正確度は良好で,通常lmm以下の誤差で測定が可能であることを確認した。その他,装置に標準装備されている自動露出機構の特性についても報告し,最後に撮影時の留意点についても検討した。
Abstract Alternative To apply CC・DR system (image intensifier digital radiography system including one million pixel CCD camera)to X-ray pelvimetry, We examined exposure dose of X-ray, radiation field, and accuracy of X-ray pelvimetry by the system. The hazards of radiation by CC・DR system were less than those of radiation by G12/HRS which is high sensitive screen-film system. 9 inch round radiation field by CC・DR system was one third of the area of 14×14 inch film. In cephalic presentation which occurs in about 95% of pregnancies, the damages of radiation by CC・DR system to fetal gonads and spinal bones including bone marrow much were less than those by usual X-ray examination. The accuracy of a distance measuring software devised newly for pelvimetry was reliable, and we could measure diameters with less than 1 mm deviations. Also we report the characteristics of automatic exposure controller annexed to this TV system and enumerate points to which we pay attention on taking a radiograph. Furthermore, It is expected that CC・DR system was useful to apply to superio-interior pelviography (Martius).
Keywords 骨盤計測 (Pelvimetry) グースマン法 (Guthmann Position) デジタルラジオグラフィー (digital radiography) 被曝線量 (exposure dose)
Publication Title 岡大三朝分院研究報告
Published Date 1995-09
Volume volume66
Start Page 62
End Page 71
ISSN 0918-7839
language 日本語
File Version publisher
NAID 120002307350
Author 渡辺 美智子|
Published Date 1996-06-08
Publication Title 岡山大学算数・数学教育学会誌 : パピルス
Volume volume3
Content Type Departmental Bulletin Paper
Author 貝原 弘道| 山本 二郎|
Published Date 1947-10-25
Publication Title 農学研究
Volume volume37
Issue issue2
Content Type Departmental Bulletin Paper
Author Kubota, Naohiro| Yanagisawa, Johji| Shimamura, Kazuo|
Published Date 1986
Publication Title 岡山大学農学部学術報告
Volume volume68
Issue issue1
Content Type Departmental Bulletin Paper
Author Kubota, Naohiro| Kimura, Tsuyoshi| Shimamura, Kazuo|
Published Date 1979
Publication Title 岡山大学農学部学術報告
Volume volume53
Issue issue1
Content Type Departmental Bulletin Paper
Author Tsukuda, Ritsuko| Kiyoku, Masao|
Published Date 1971
Publication Title 岡山大学農学部学術報告
Volume volume38
Issue issue1
Content Type Departmental Bulletin Paper
Author Tsukuda, Ritsuko| Kiyoku, Masao|
Published Date 1975
Publication Title 岡山大学農学部学術報告
Volume volume45
Issue issue1
Content Type Departmental Bulletin Paper
Author Tsukuda, Ritsuko| Kiyoku, Masao|
Published Date 1973
Publication Title 岡山大学農学部学術報告
Volume volume42
Issue issue1
Content Type Departmental Bulletin Paper
Author Tsukuda, Ritsuko| Kiyoku, Masao|
Published Date 1972
Publication Title 岡山大学農学部学術報告
Volume volume39
Issue issue1
Content Type Departmental Bulletin Paper
Author Kiyoku, Masao| Tsukuda, Ritsuko|
Published Date 1968
Publication Title 岡山大学農学部学術報告
Volume volume32
Issue issue1
Content Type Departmental Bulletin Paper
Author 近藤 萬太郎| 笠原 安夫| 秋田 史郎|
Published Date 1947-06-25
Publication Title 農学研究
Volume volume37
Issue issue1
Content Type Departmental Bulletin Paper
Author Noro, Yasushi|
Published Date 2015-12-30
Publication Title Bulletin of Higher Education Okayama University
Volume volume11
Content Type Departmental Bulletin Paper