検索結果 - 岡山大学学術成果リポジトリ

NMR study for electrochemically inserted Na in hard carbon electrode of sodium ion battery

著者	Gotoh, Kazuma\| Ishikawa, Toru\| Shimadzu, Saori\| Yabuuchi, Naoaki\| Komaba, Shinichi\| Takeda, Kazuyuki\| Goto, Atsushi\| Deguchi, Kenzo\| Ohki, Shinobu\| Hashi, Kenjiro\| Shimizu, Tadashi\| Ishida, Hiroyuki\|
発行日	2013-03
出版物タイトル	Journal of Power Sources
巻	225巻
資料タイプ	学術雑誌論文

Exfoliated graphene sheets decorated with metal / metal oxide nanoparticles: simple preparation from cation exchanged graphite oxide

著者	Gotoh, Kazuma\| Kinumoto, Taro\| Fujii, Eiji\| Yamamoto, Aki\| Hashimoto, Hideki\| Ohkubo, Takahiro\| Itadani, Atsushi\| Kuroda, Yasushige\| Ishida, Hiroyuki\|
発行日	2011-04
出版物タイトル	Carbon
巻	49巻
号	4号
資料タイプ	学術雑誌論文

Analysis of bis(trifluoromethylsulfonyl)imide-doped paramagnetic graphite intercalation compound using F-19 very fast magic angle spinning nuclear magnetic resonance

著者	Gotoh, Kazuma\| Takeda, Kazuyuki\| Lerner, Michael M.\| Sueishi, Yoshimi\| Maruyama, Shinpei\| Goto, Atsushi\| Tansho, Masataka\| Ohki, Shinobu\| Hashi, Kenjiro\| Shimizu, Tadashi\| Ishida, Hiroyuki\|
発行日	2011-10
出版物タイトル	Carbon
巻	49巻
号	12号
資料タイプ	学術雑誌論文

Electroconductive π-Junction Au Nanoparticles

著者	Kanehara, Masayuki\| Takeya, Jun\| Uemura, Takafumi\| Murata, Hideyuki\| Takimiya, Kazuo\| Sekine, Hikaru\| Teranishi, Toshiharu\|
発行日	2012-09
出版物タイトル	Bulletin of the Chemical Society of Japan
巻	85巻
号	9号
資料タイプ	学術雑誌論文

The preparation and characterization of TiO2/ZrO2 composites doped with PMA/PWA

著者	Uma, Thanganathan\| Nogami, Masayuki\|
発行日	2009-04-01
出版物タイトル	Journal of the Ceramic Society of Japan
巻	117巻
号	1364号
資料タイプ	学術雑誌論文

Scanning and non-scanning surface plasmon microscopy to observe cell adhesion sites

著者	Watanabe, Koyo\| Matsuura, Koji\| Kawata, Fukukazu\| Nagata, Kotaro\| Ning, Jun\| Kano, Hiroshi\|
発行日	2012-02-01
出版物タイトル	Biomedical Optics Express
巻	3巻
号	2号
資料タイプ	学術雑誌論文

Screening of sperm velocity by fluid mechanical characteristics of a cyclo-olefin polymer microfluidic sperm-sorting device

著者	Matsuura, Koji\| Takenami, Mami\| Kuroda, Yuka\| Hyakutake, Toru\| Yanase, Shinichiro\| Naruse, Keiji\|
発行日	2012-01
出版物タイトル	Reproductive BioMedicine Online
巻	24巻
号	1号
資料タイプ	学術雑誌論文

Application of a microfluidic sperm sorter to the in-vitro fertilization of porcine oocytes reduced the incidence of polyspermic penetration

著者	Sano, Hikaru\| Matsuura, Koji\| Naruse, Keiji\| Funahashi, Hiroaki\|
発行日	2010-09-15
出版物タイトル	Theriogenology
巻	74巻
号	5号
資料タイプ	学術雑誌論文

In-vitro Culture with a Tilting Device in Chemically Defined Media During Meiotic Maturation and Early Development Improves the Quality of Blastocysts Derived from In-vitro Matured and Fertilized Porcine Oocytes

著者	Koike, Takayuki\| Matsuura, Koji\| Naruse, Keiji\| Funahashi, Hiroaki\|
発行日	2010-10
出版物タイトル	Journal of Reproduction and Development
巻	56巻
号	5号
資料タイプ	学術雑誌論文

Application of a numerical simulation to improve the separation efficiency of a sperm sorter

著者	Hyakutake, Toru\| Hashimoto, Yuki\| Yanase, Shinichiro\| Matsuura, Koji\| Naruse, Keiji\|
発行日	2009-02
出版物タイトル	Biomedical Microdevices
巻	11巻
号	1号
資料タイプ	学術雑誌論文

Dynamic Finite Element Analysis of Impulsive Stress Waves Propagating from Distal End of Femur

JaLCDOI	10.18926/AMO/48965
フルテキストURL	66_5_409.pdf
著者	Sarai, Takaaki\| Inoue, Takayuki\| Fujiwara, Kazuo\| Kuramoto, Koichi\|
抄録	The human femur is subjected to an impulsive load at its distal end during daily life. Femoral bone fracture caused by impact loading is common in elderly women. It is important to clarify the dynamic response of the femur and to evaluate the change in its stress state during impact loading. A 3-dimensional model of the femur was prepared in the present study, and the impulsive stress waves propagating from the distal end of the femur were analyzed by the dynamic finite element method. This model showed that the von Mises equivalent stress is large on the anterior and posterior sides of the mid-diaphysis when the impact direction is different from that of the bone axis. As for the femoral neck, the absolute value of minimum principal stress initially increases on the medial side;slightly later the maximum principal stress increases on the lateral side. In this case, the absolute value of the maximum principal stress was found to be larger than that of the minimum principal stress, and the absolute value of the principal stress decreased as the impact angle increased. Further, the femoral neck and the trochanter were shown to have a higher risk of bone fracture when the impact direction is coincident with the bone axis.
キーワード	biomechanics femur impulsive stress wave impact angle dynamic finite element analysis
Amo Type	Original Article
出版物タイトル	Acta Medica Okayama
発行日	2012-10
巻	66巻
号	5号
出版者	Okayama University Medical School
開始ページ	409
終了ページ	415
ISSN	0386-300X
NCID	AA00508441
資料タイプ	学術雑誌論文
言語	英語
著作権者	CopyrightⒸ 2012 by Okayama University Medical School
論文のバージョン	publisher
査読	有り
PubMed ID	23093059
Web of Science KeyUT	000310253900005

HIF-1α Contributes to Hypoxia-induced Invasion and Metastasis of Esophageal Carcinoma via Inhibiting E-cadherin and Promoting MMP-2 Expression

JaLCDOI	10.18926/AMO/48964
フルテキストURL	66_5_399.pdf
著者	Jing, Shao-Wu\| Wang, Ya-Di\| Kuroda, Masahiro\| Su, Jing-Wei\| Sun, Guo-Gui\| Liu, Qing\| Cheng, Yun-Jie\| Yang, Cong-Rong\|
抄録	Hypoxia-inducible factor-1α (HIF-1α) has been found to enhance tumor invasion and metastasis, but no study has reported its action in esophageal carcinoma. The goal of this study was to explore the probable mechanism of HIF-1α in the invasion and metastasis of esophageal carcinoma Eca109 cells in vitro and in vivo. mRNA and protein expression of HIF-1α, E-cadherin and matrix metalloproteinase-2 (MMP-2) under hypoxia were detected by RT-PCR and Western blotting. The effects of silencing HIF-1α on E-cadherin, MMP-2 mRNA and protein expression under hypoxia or normoxia were detected by RT-PCR and Western blotting, respectively. The invasive ability of Eca109 cells was tested using a transwell chambers. We established an Eca109-implanted tumor model and observed tumor growth and lymph node metastasis. The expression of HIF-1α, E-cadherin and MMP-2 in xenograft tumors was detected by Western blotting. After exposure to hypoxia, HIF-1α protein was up-regulated, both mRNA and protein levels of E-cadherin were down-regulated and MMP-2 was up-regulated, while HIF-1α mRNA showed no significant change. SiRNA could block HIF-1α effectively, increase E-cadherin expression and inhibit MMP-2 expression. The number of invading cells decreased after HIF-1α was silenced. Meanwhile, the tumor volume was much smaller, and the metastatic rate of lymph nodes and the positive rate were lower in vivo. Our observations suggest that HIF-1α inhibition might be an effective strategy to weaken invasion and metastasis in the esophageal carcinoma Eca109 cell line.
キーワード	hypoxia-inducible factor-1α esophageal carcinoma invasion and metastasis
Amo Type	Original Article
出版物タイトル	Acta Medica Okayama
発行日	2012-10
巻	66巻
号	5号
出版者	Okayama University Medical School
開始ページ	399
終了ページ	407
ISSN	0386-300X
NCID	AA00508441
資料タイプ	学術雑誌論文
言語	英語
著作権者	CopyrightⒸ 2012 by Okayama University Medical School
論文のバージョン	publisher
査読	有り
PubMed ID	23093058
Web of Science KeyUT	000310253900004

Detection of Torque Teno Virus DNA in Exhaled Breath by Polymerase Chain Reaction

JaLCDOI	10.18926/AMO/48963
フルテキストURL	66_5_387.pdf
著者	Chikasue, Kumiko\| Kimura, Miyuki\| Ikeda, Kazuyuki\| Ohnishi, Takuma\| Kawanishi, Satoshi\| Iio, Tomoe\| Kataoka, Mikio\| Arao, Yujiro\|
抄録	To determine whether exhaled breath contains Torque teno virus (TTV) or not, we tested exhaled breath condensate (EBC) samples by semi-nested PCR assay. We detected TTV DNA in 35% (7/20) of EBC samples collected from the mouth of one of the authors, demonstrating that TTV DNA is excreted in exhaled breath with moderate frequency. TTV DNA was detected also in oral EBC samples from 4 of 6 other authors, indicating that TTV DNA excretion in exhaled breath is not an exception but rather a common phenomenon. Furthermore, the same assay could amplify TTV DNA from room air condensate (RAC) samples collected at distances of 20 and 40cm from a human face with 40 (8/20) and 35% (7/20) positive rates, respectively. TTV transmission has been reported to occur during infancy. These distances seem equivalent to that between an infant and its household members while caring for the infant. Taken together, it seems that exhaled breath is one of the possible transmission routes of TTV. We also detected TTV DNA in 25% (10/40) of RAC samples collected at a distance of more than 180cm from any human face, suggesting the risk of airborne infection with TTV in a room.
キーワード	Torque teno virus exhaled breath airborne infection polymerase chain reaction
Amo Type	Original Article
出版物タイトル	Acta Medica Okayama
発行日	2012-10
巻	66巻
号	5号
出版者	Okayama University Medical School
開始ページ	387
終了ページ	397
ISSN	0386-300X
NCID	AA00508441
資料タイプ	学術雑誌論文
言語	英語
著作権者	CopyrightⒸ 2012 by Okayama University Medical School
論文のバージョン	publisher
査読	有り
PubMed ID	23093057
Web of Science KeyUT	000310253900003
関連URL	http://ousar.lib.okayama-u.ac.jp/metadata/49508

Multiplex pneumatic control method for multi-drive system

著者	Nishioka, Yasutaka\| Suzumori, Koichi\| Kanda, Takefumi\| Wakimoto, Shuichi\|
発行日	2010-12
出版物タイトル	Sensors and Actuators A: Physical
巻	164巻
号	1-2号
資料タイプ	学術雑誌論文

Design of a variable-stiffness robotic hand using pneumatic soft rubber actuators

著者	Nagase, Jun-ya\| Wakimoto, Shuichi\| Satoh, Toshiyuki\| Saga, Norihiko\| Suzumori, Koichi\|
発行日	2011-10
出版物タイトル	Smart Materials and Structures
巻	20巻
号	10号
資料タイプ	学術雑誌論文

Miniature Pneumatic Curling Rubber Actuator Generating Bidirectional Motion with One Air-Supply Tube

著者	Wakimoto, Shuichi\| Suzumori, Koichi\| Ogura, Keiko\|
発行日	2011
出版物タイトル	Advanced Robotics
巻	25巻
号	9-10号
資料タイプ	学術雑誌論文

Development of an Intelligent Chair Tool System Applying New Intelligent Pneumatic Actuators

著者	Faudzi, Ahmad 'Athif Mohd\| Suzumori, Koichi\| Wakimoto, Shuichi\|
発行日	2010
出版物タイトル	Advanced Robotics
巻	24巻
号	10号
資料タイプ	学術雑誌論文

熱延操業支援エージェント構築のための操業診断と圧延操作方法

著者	小西正躬\| 中野孝一\| 今井純\|
発行日	2011-06-01
出版物タイトル	鉄と鋼
巻	97巻
号	6号
資料タイプ	学術雑誌論文

A Fault Injection Method for Generating Error-correction Exercises in Algorithm Learning

著者	Itoh, Ryota\| Nagataki, Hiroyuki\| Ooshita, Fukuhito\| Kakugawa, Hirotsugu\| Masuzawa, Toshimitsu\|
発行日	2007-07-10
出版物タイトル	8th International Conference on Information Technology Based Higher Education and Training
資料タイプ	会議発表論文

Multiple phosphorus chemical sites in heavily phosphorus-doped diamond

著者	Okazaki, Hiroyuki\| Yoshida, Rikiya\| Muro, Takayuki\| Nakamura, Tetsuya\| Wakita, Takanori\| Muraoka, Yuji\| Hirai, Masaaki\| Kato, Hiromitsu\| Yamasaki, Satoshi\| Takano, Yoshihiko\| Ishii, Satoshi\| Oguchi, Tamio\| Yokoya, Takayoshi\|
発行日	2011-02-21
出版物タイトル	Applied Physics Letters
巻	98巻
号	8号
資料タイプ	学術雑誌論文