著者
Miyauchi Takashi
巻号頁・発行日
1990

〈目的〉エンドセリン(ET)は血管内皮細胞が産生する強力な血管収縮性ペプチドで、21個のアミノ酸より構成される。高血圧とETとの関連を検討するため、高血圧自然発症ラット(spontaneously hypertensive rat,以下SHR)と対照動物であるWister-Kyotoラット(以下WKY)において、ETに対する昇圧反応の特徴を比較検討した。 ...
著者
金井 肇
巻号頁・発行日
2012

筑波大学博士 (文学) 学位論文・平成24年3月23日授与 (乙第2577号)
著者
樋口 正法
巻号頁・発行日
1991

電流を流すとその周りに磁場が発生することは、初等物理学において右ねじの法則として知られている。これと同様の現象が生体内でも起きている。生体の神経や筋肉が活動すると、細胞内外の荷電粒子(イオン) ...
著者
崔 在穆
巻号頁・発行日
1991

筑波大学文学博士学位論文・平成3年3月25日授与 (甲第814号)
著者
崔 宰英
巻号頁・発行日
2003

筑波大学博士 (工学) 学位論文・平成15年5月31日授与 (乙第1933号)
著者
Imamura Michihiro
巻号頁・発行日
1990

Thesis--University of Tsukuba, D.M.S.(A), no. 765, 1990. 3. 23
著者
Kasuya Yoshitoshi
巻号頁・発行日
1990

Thesis--University of Tsukuba, D.M.S.(A), no. 804, 1990. 10. 31
著者
Morisaka Tadamichi Sakai Mai Kogi Kazunobu Nakasuji Akane Sakakibara Kasumi Kasanuki Yuria Yoshioka Motoi
出版者
Public Library of Science
雑誌
PloS one (ISSN:19326203)
巻号頁・発行日
vol.8, no.8, 2013-08-28
被引用文献数
4

野生イルカの突発性射精(夢精)を世界で初めて記録 : さまざまな動物で見られる現象か?. 京都大学プレスリリース. 2013-08-28
著者
AKIYAMA Eizo HANAKI Nobuyuki ISHIKAWA Ryuichiro
出版者
University of Tsukuba. Graduate School of Systems and Information Engineering. Doctoral Program in Social Systems & Management
巻号頁・発行日
2013-08

To what extent is the observed mis-pricing in experimental asset markets caused by strategic uncertainty (SU) and by individual bounded rationality (IBR)? We address this question by comparing subjects initial price forecasts in two market environments – one with six human traders, and the other with one human and five computer traders. We find that both SU and IBR account equally for the median initial forecasts deviation from the fundamental values. The effect of SU is greater for subjects with a perfect score in the Cognitive Reflection Test, and it is not significant for those with low scores.
著者
YAMAMOTO Yoshitsugu ZHOU You
出版者
University of Tsukuba. Graduate School of Systems and Information Engineering. Doctoral Program in Social Systems & Management
巻号頁・発行日
2013-08

This paper is concerned about the aggregation function which plays a centralrole in the majority judgement that was recently proposed by Balinski and Laraki as anew voting mechanism. We raise two issues about their aggregation function, named orderfunction, and show that they are resolved by relaxing the strong monotonicity conditionimposed on the aggregation function, and that the anonymous, weakly monotonic andstrategy-proof aggregation function is completely determined by the set of final grades when the judges split deeply.
著者
IZUNAGA Yoichi YAMAMOTO Yoshitsugu
出版者
University of Tsukuba. Graduate School of Systems and Information Engineering. Doctoral Program in Social Systems & Management
巻号頁・発行日
2013-07

The modularity proposed by Newman and Girvan is the most commonly used measure when the nodes of a graph are grouped into communities consisting of tightly connectednodes. We formulate the modularity maximization problem as a set partitioning problem, and propose an algorithm for the problem based on the linear programming relaxation. We solve the dual of the linear programming relaxation by using a cutting plane method. To mediate the slow convergence that cutting plane methods usually suffer, we propose a method for finding and simultaneously adding multiple cutting planes which may complement well each other.
著者
OGAKU Michiko
出版者
University of Tsukuba. Graduate School of Systems and Information Engineering. Doctoral Program in Social Systems & Management
巻号頁・発行日
2013-06

This paper investigates why some business firms do not find it necessary to relyon explicit contracts to resolve incentive problems, even though they have recourseto contractible financial measures. Implicit incentives, such as career concerns,play a key role in those firms. Using the Normal-Exponential (CARA-Gaussian)model and assuming that the firms in this study have both contractible and noncontractible measures, this paper implies that some firms may wish to give their managers disincentives, if possible, because their managers have been overworking.
著者
OGAKU Michiko
出版者
University of Tsukuba. Graduate School of Systems and Information Engineering. Doctoral Program in Social Systems & Management
巻号頁・発行日
2013-06

This note provides the criterion for an information system for an optimal incentivescheme under plausible assumptions about firm managers: the agent has careerconcerns and there are not only contractible observables but also non-contractibleobservables. The covariance relation between the likelihood ratios of the informationsystems is found to be sufficient to recognise the information systems’ feasibility as a basis of an incentive scheme. Furthermore, it is shown that the criterion can specify more unfeasible information systems than Kim’s mean preserving spread criterion.
著者
黒澤 尋
巻号頁・発行日
1989

固定化細胞は、 発酵生産プロセスを効率化する有力な手段として近年注目されており、 細胞の固定化法の中では、 細胞をそのまま高分子素材を用いて包み込む包括法が、 固定化操作が容易なために、これまでにもっとも広く ...