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1.

論文(リポジトリ)

論文(リポジトリ)
Suzuki, Takamasa ; Hido, Nobuaki ; Zhao, Xuefeng ; Sasaki, Osami
出版情報: Applied Optics — Applied Optics.  42  pp.6640-6644,  2003-11.  Optical Society of America
本文リンク: http://hdl.handle.net/10191/27516
概要: We describe a novel method that operates a laser diode with dual colors. Our system requires no external optical parts but does require current and temperature control. We can use either a single color on a time-sharing basis or dual colors simultaneously. The difference between the wavelengths is -0.6 nm, which is as much as 10 times that generated by current control alone. Temporal stability of the generated two wavelengths and the response time of the wavelength change were confirmed through a number of experiments. 続きを見る
2.

論文(リポジトリ)

論文(リポジトリ)
Suzuki, Takamasa ; Suda, Hiromi ; Sasaki, Osami
出版情報: Applied Optics — Applied Optics.  42  pp.60-66,  2003-01.  Optical Society of America
本文リンク: http://hdl.handle.net/10191/27508
概要: A previously proposed double sinusoidal phase-modulating (DSPM) laser-diode interferometer measures distances larger than a half-wavelength by detecting modulation depth. Although it requires a vibrating mirror to provide the second modulation to the interference signal, such vibrations naturally affect measurement accuracy. We propose a static-type DSPM laser-diode interferometer that uses no mechanical modulation. Our experimental results indicate a measurement error of +/- 1.6 microm. 続きを見る
3.

論文(リポジトリ)

論文(リポジトリ)
Uematsu, H. ; Sato, N. ; Hossain, MD. Z. ; Ikeda, T. ; Hoshino, E.
出版情報: Archives of Oral Biology — Archives of Oral Biology.  48  pp.423-429,  2003-06.  Elsevier Science Ltd.
本文リンク: http://hdl.handle.net/10191/4999
概要: Utilization of a total of 20 amino acids by butyrate-producing asaccharolytic anaerobic Gram-positive rods (AAGPRs) of periodontal pockets, i.e. Eubacterium minutum, Filifactor alocis, E. infirmum, E. sulci and E. saphenum, was studied. E. minutum utilized only arginine and lysine, and produced substantial amounts of butyrate and ammonia from arginine as main metabolic products, while acetate, butyrate and ammonia were from lysine. Fi. alocis utilized only arginine and produced butyrate and ammonia. E. infirmum, E. sulci and E. saphenum utilized only lysine and produced acetate, butyrate and ammonia. The growth of these bacterial species was supported and enhanced by arginine and/or lysine enriched to culture media, but not by the other amino acids. Activities of arginine deiminase, ornithine carbamoyltransferase and carbamate kinase were detected in the cell free extract of E. minutum, suggesting that arginine was metabolised to citrulline, then to ornithine and carbamoyl phosphate. Ornithine and carbamoyl phosphate were further converted to butyrate, and carbon dioxide and ammonia, respectively. While, the enzymatic activity of arginine deiminase and ornithine carbamoyltransferase were not detected in Fi. alocis, indicating that Fi. alocis converted arginine directly to ornithine, not via citrulline, and further to butyrate. 続きを見る
4.

論文(リポジトリ)

論文(リポジトリ)
Tsuruta, Akemi ; Yamada, Kazuhiro ; Hanada, Kooji ; Hosogai, Akiko ; Tanaka, Rei ; Koyama, Jun-Ichi ; Hayashi, Takafumi
出版情報: Dentomaxillofacial radiology — Dentomaxillofacial radiology.  32  pp.217-221,  2003-07. 
本文リンク: http://hdl.handle.net/10191/1179
概要: Objective: The aim of this study is to investigate the relationship between the thickness of the roof of the glenoid fossa in the temporomandibular joint (TMJ), and the existence and types of condylar bone change. Material and methods: Helical computed tomography (CT) was used to measure the thickness of the roof of the glenoid fossa at its thinnest part in 37 orthodontic patients with temporomandibular disorders. Condylar bone changes were classified into four types: no bone change (24 joints), flattening (19 joints), osteophyte (13 joints) and erosion (18 joints). Results: The roof of the glenoid fossa was significantly thicker in joints with bone change than in joints with no bone change (Mann-Whitney U-test, p<0.05). There was also a significant difference in relation to the type of condylar bone change: the thickness of the roof of the glenoid fossa in the erosion group was significantly larger than in the no bone change (p<0.01), flattening (p<0.05) and osteophyte formation (p<0.05) groups (Kruskal-Wallis and Games-Howell tests). Conclusion: The results of the present study suggested that compensative bone formation in the roof of the glenoid fossa might help to withstand the increased stress in the TMJ accompanying condylar bone change (especially erosion). 続きを見る
5.

論文(リポジトリ)

論文(リポジトリ)
Koro, Kazuhiro ; Abe, Kazuhisa
出版情報: Engineering Aalysis with Boundary Elements — Engineering Aalysis with Boundary Elements.  27  pp.439-454,  2003-05.  Elsevier Science Ltd.
本文リンク: http://hdl.handle.net/10191/4886
概要: A wavelet BEM is applied to the evaluation of the effective elastic moduli of unidirectional composites, based on the homogenization theory. This attempt is devoted to the reduction of computational cost for the BE-based homogenization analysis. Truncation for matrix compression is carried out by the Beylkin-type algorithm. A thresholding value for the truncation is set such that the discretization error of BE solution is comparable to its truncation error. Besides, rearrangement of the BE equations is proposed to attain rapid convergence of iterative solutions. Through investigation of asymptotical convergence of the effective moduli, it is found that the BE-based homogenization analysis ensures the same rate of convergence for effective moduli as for characteristic functions. By applying the wavelet BEM to heterogeneous media which have microstructures with many voids, the effective moduli with agreement of 2 - 4 digits can be evaluated using 20 - 50 % memory requirements of conventional BE approaches. 続きを見る
6.

論文(リポジトリ)

論文(リポジトリ)
FUJISAWA, Nobuyoshi ; MAEDA, Yoshitaka ; YAMAMOTO, Yoshitaka ; SATO, Norimitsu L. ; NIIMURA, Sueo
出版情報: Experimental animals — Experimental animals.  52  pp.169-172,  2003-12.  日本実験動物学会
本文リンク: http://hdl.handle.net/10191/25127
概要: Two inbred strains of the Mongolian gerbil with different phenotypes in seizure behaviour and coat color were newly established. LSAG/Nu has low seizure susceptibility and albino phenotypes, whereas SPBG/Nu has seizure-prone and black coat color phenotypes. LSAG was compared with SPBG as to seizure incidence and grade. Mean ages at seizure onset of LSAG and SPBG were 6 and 3 months, respectively. Seizure incidences in over 9 months old LSAG and SPBG gerbils were 37.3% (66/177) and 95.2% (118/124), respectively. LSAG has a significantly lower incidence (p<0.001) and grade (p<0.001) of seizures than SPBG. Only a few seizing LSAG gerbils exhibited myoclonus to tonic-clonic seizure progression. These results suggest that LSAG has some mechanisms which delay the onset of seizures and prevent them from becoming serious. Both strains of gerbils can be expected to be useful animal models for the study of human idiopathic generalized epilepsy. 続きを見る
7.

論文(リポジトリ)

論文(リポジトリ)
Uno, Chiharu ; Hara, Takashi ; Joh, Toshio
出版情報: Food Science and Technology Research.  9  pp.185-189,  2003-05.  日本食品科学工学会
本文リンク: http://hdl.handle.net/10191/17601
概要: The participation of lipase in the formation of n-hexanal by homogenization of alfalfa seedlings was investigated. n-Hexanal was increased by the addition of trilinolein, dilinolein or monolinolein to the homogenate of the seedlings. Taurodeoxycholic acid sodium salt (TDCA), an inhibitor of triacylglycerol lipase, inhibited the formation of n-hexanal by 36%. These findings show that the corresponding proportion of n-hexanal was formed through the action of triacylglycerol lipase. n-Hexanal was also increased by adding the total lipids of alfalfa seedlings to the homogenate prepared with TDCA. But, when the lipids removed free fatty acids from the total lipids were added to the homogenate, the increase decreased to 18% as compared with the addition of total lipids. n-Hexanal thus also increased through the pathway, not requiring the action of the lipase and 82% of the increased n-hexanal was formed from preexisting free fatty acids. The formation pathways of n-hexanal in the seedlings were discussed. 続きを見る
8.

論文(リポジトリ)

論文(リポジトリ)
Yamaguchi, Tomoko ; Katsuda, Mamiko ; Oda, Yuka ; Terao, Junji ; Kanazawa, Kazuki ; Oshima, Shunji ; Inakuma, Takahiro ; Ishiguro, Yukio ; Takamura, Hitoshi ; Matoba, Teruyoshi
出版情報: Food Science and Technology Research.  9  pp.79-83,  2003.  日本食品科学工学会
本文リンク: http://hdl.handle.net/10191/18003
概要: The influence of polyphenol oxidase and ascorbate oxidase on radical-scavenging activity and contents of total phenol, chlorogenic acid, and ascorbic acid in vegetables during the cooking process were investigated. In the case of burdock and lettuce, which have a high activity of polyphenol oxidase, the radical-scavenging activity and the content of total phenol and chlorogenic acid decreased drastically within 1 min. In the case of broccoli, however, only a small decrease of radical-scavenging activity was observed, and total phenol and chlorogenic acid decreased almost not at all. The decrease of the activity in broccoli depended on the oxidation of ascorbic acid by ascorbate oxidase. None of these compounds decreased after the enzymes had been inactivated by heating. 続きを見る
9.

論文(リポジトリ)

論文(リポジトリ)
相澤, 義房 ; 高橋, 姿 ; 石井, 史郎 ; 細井, 千壽子 ; 堀田, 哲夫 ; 富樫, 和枝 ; 加藤, 仁 ; 三井田, 孝 ; 吉村, 秀太郎 ; 旭, 正子 ; 今井, 昭雄 ; 番場, 朝子
出版情報: 新潟医学会雑誌 — 新潟医学会雑誌.  117  pp.679-679,  2003-12.  新潟医学会
本文リンク: http://hdl.handle.net/10191/3341
10.

論文(リポジトリ)

論文(リポジトリ)
石井, 史郎
出版情報: 新潟医学会雑誌 — 新潟医学会雑誌.  117  pp.680-684,  2003-12.  新潟医学会
本文リンク: http://hdl.handle.net/10191/4652