著者

Hirayama Tetsuji

出版者

Springer

雑誌

Annals of operations research (ISSN:02545330)

巻号頁・発行日

vol.198, no.1, pp.83-123, 2012-09

被引用文献数

5

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We consider multiclass Markovian polling systems with feedback and analyze their average performance measures. Scheduling in polling systems has many applications in computer and communication systems. We utilize the framework that has been effectively used to analyze various composite scheduling algorithms in many types of multiclass queues systematically in conjunction with the functional computation method (Hirayama in Naval Research Logistics 50:719–741, 2003; Journal of the Operations Research Society of Japan 48:226–255, 2005; Advances in queueing theory and network applications, pp. 119–146, Springer, New York, 2009a; Journal of Industrial and Management Optimization 6:541–568, 2010).We define the conditional expected values of the performance measures such as the sojourn times as functions of the system state and find their expressions by solving some equations. Then from these expressions, we derive the average numbers of customers and the average sojourn times for all service stages of customers circulating the system. We consider their application to a packet scheduling problem where multiple categories of packets share a resource.

著者

Awano Shinichi Miyamoto Koji Hosokawa Masashi Mankura Mitsumasa Takahashi Koretaro

出版者

Japanese Society of Fisheries Science

雑誌

Fisheries Science (ISSN:09199268)

巻号頁・発行日

vol.72, pp.909-912, 2006

被引用文献数

11

著者

山川 恭子

巻号頁・発行日

2011

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筑波大学博士 (学術) 学位論文・平成23年3月25日授与 (甲第5875号)

著者

Okada Atsushi Toko Kaoru O. Hara Kosuke Usami Noritaka Suemasu Takashi

出版者

Elsevier B.V.

雑誌

Journal of crystal growth (ISSN:00220248)

巻号頁・発行日

vol.356, pp.65-69, 2012-10

被引用文献数

20

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We have fabricated poly-Si thin films on fused silica substrates by the Al-induced crystallization (AIC) method with SiO2 insertion layers of various thicknesses (0–20 nm). The growth morphologies of poly-Si layers were dramatically changed by the SiO2 thickness, i.e., thin layers (2 nm) provided high growth rates and (100) orientations, and thick layers (10 nm) provided low growth rates and (111) orientations. These results showed that the crystal orientation of AIC-Si significantly depends on the diffusion rate of Si atoms into the Al layer.

著者

Miyaki Asako Maeda Seiji Choi Youngju Akazawa Nobuhiko Tanabe Yoko Ajisaka Ryuichi

出版者

NRC Research Press

雑誌

Applied physiology, nutrition, and metabolism (ISSN:17155312)

巻号頁・発行日

vol.37, no.5, pp.907-911, 2012-10

被引用文献数

32 7

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Chronic inflammation that occurs with aging is one of the risk factors for cardiovascular disease. Regular exercise may prevent cardiovascular morbidity by decreasing chronic systematic inflammation. Additionally, excess inflammation can be reduced by the anti-inflammatory protein pentraxin 3 (PTX3). Thus, both habitual exercise and PTX3 have an anti-inflammatory effect. However, it is unclear whether regular exercise leads to increased plasma PTX3 concentration. In the present study, we investigated the effects of regular aerobic exercise on plasma PTX3 concentration in middle-aged and elderly women. Twenty-two postmenopausal women (60 ± 6 years) were randomly divided evenly into 2 groups (i.e., exercise intervention and control). Subjects in the exercise group completed 2 months of regular aerobic exercise training (walking and cycling, 30-45 min, 3-5 days·week(-1)). Before and after the intervention, we evaluated plasma PTX3 concentration, peak oxygen uptake, blood chemistry, and arterial distensibility (carotid arterial compliance and β-stiffness) in all participants. There were no significant differences in baseline parameters between the 2 groups. Plasma PTX3 concentration was significantly increased in the exercise group after the intervention (p < 0.05). High-density lipoprotein cholesterol, peak oxygen uptake, and arterial compliance were also significantly increased (p < 0.05), while β-stiffness was markedly decreased (p < 0.01) after the intervention. On the other hand, there was no change in the parameters tested in the control group. This study demonstrates that regular aerobic exercise increases plasma PTX3 concentration with improvement of high-density lipoprotein cholesterol, peak oxygen uptake, and arterial distensibility in postmenopausal women.

著者

高久 雅生 江草 由佳 岡本 真 大向 一輝

出版者

ディジタル図書館編集委員会

雑誌

ディジタル図書館 (ISSN:13407287)

巻号頁・発行日

no.43, pp.23-28, 2012-09-25

著者

関 洋平

出版者

ディジタル図書館編集委員会

雑誌

ディジタル図書館 (ISSN:13407287)

巻号頁・発行日

no.43, pp.15-22, 2012-09-25

著者

高井 正成 阪口 哲男

出版者

ディジタル図書館編集委員会

雑誌

ディジタル図書館 (ISSN:13407287)

巻号頁・発行日

no.43, pp.3-10, 2012-09-25

著者

高野 弘子

巻号頁・発行日

pp.1-26, 2012-01-31

著者

理学部企画委員会建物小委員会

出版者

東京大学理学部

雑誌

東京大学理学部廣報

巻号頁・発行日

vol.19, no.4, pp.33-35, 1988-03

著者

佐々田 悠

出版者

東京大学大学院人文社会系研究科・文学部日本史学研究室

雑誌

東京大学日本史学研究室紀要

巻号頁・発行日

vol.8, pp.137-187, 2004-03-26

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史料目録・調査報告

著者

神谷 忠孝

出版者

北海道大学

雑誌

北大百二十五年史

巻号頁・発行日

vol.論文・資料編, pp.241-264, 2003-02-21

著者

小川 正広

出版者

京都大学西洋古典研究会

雑誌

西洋古典論集 (ISSN:02897113)

巻号頁・発行日

vol.6, pp.89-117, 1989-09-30

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この論文は国立情報学研究所の学術雑誌公開支援事業により電子化されました。

著者

福地 正樹

出版者

東京大学大学院工学系研究科電気系工学専攻

巻号頁・発行日

2011-03-24

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報告番号: ; 学位授与年月日: 2011-03-24 ; 学位の種別: 修士 ; 学位の種類: 修士(工学) ; 学位記番号: ; 研究科・専攻: 工学系研究科電気系工学専攻

著者

Yuan Xiaofei Fabregat Dolça Yoshimoto Keitaro Nagasaki Yukio

出版者

Elsevier

雑誌

Colloids and surfaces. B, Biointerfaces (ISSN:09277765)

巻号頁・発行日

vol.99, pp.45-52, 2012-11

被引用文献数

23

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Rabbit anti-human ferritin (anti-hFT) polyclonal immunoglobulin G (IgG) and poly(ethylene glycol) (PEG) were sequentially co-immobilized onto polystyrene submicroparticles (sMPs) to construct sMP/anti-hFT/PEG (SAP) immunolatex. Chemical immobilization of anti-hFT was performed at different pH levels to evaluate variations in antigen recognition. Basic pH disfavored conjugation of anti-hFT to sMPs, but remarkably increased its antigen recognition in comparison to that at neutral pH. We investigated this intriguing phenomenon further by assessing the kinetics of antibody binding, including the time-dependency of immobilization, antigen recognition, and orientation of bound anti-hFT. Therefore, we attributed high antigen recognition to significant electrostatic repulsion between sMPs and anti-hFT at basic pH, which predominately prevented anti-hFT access to sMPs and concurrently promoted anti-hFT orientations suitable for antigen recognition. Subsequent PEG modification maintained such anti-hFT orientation, without which antigen-accessible orientations would have decreased with time. Thus, properly oriented antibody and immediate PEGylation after antibody immobilization contributed to the formation of a high-performance SAP immunolatex.

著者

大井 浩二 Koji Oi

雑誌

人文論究 (ISSN:02866773)

巻号頁・発行日

vol.41, no.4, pp.1-14, 1992-02-20

著者

Singh Raksha Lee Mi-Ok Lee Jae-Eun Choi Jihyun Park Ji Hun Kim Eun Hye Yoo Ran Hee Cho Jung-Il Jeon Jong-Seong Rakwal Randeep Agrawal Ganesh Kumar Moon Jae Sun

出版者

American Society of Plant Physiologists

雑誌

Plant physiology (ISSN:00320889)

巻号頁・発行日

vol.160, no.1, pp.477-487, 2012-09

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Mitogen-activated protein kinase (MAPK) cascades support the flow of extracellular signals to intracellular target molecules and ultimately drive a diverse array of physiological functions in cells, tissues, and organisms by interacting with other proteins. Yet, our knowledge of the global physical MAPK interactome in plants remains largely fragmented. Here, we utilized the yeast two-hybrid system and coimmunoprecipitation, pull-down, bimolecular fluorescence complementation, subcellular localization, and kinase assay experiments in the model crop rice (Oryza sativa) to systematically map what is to our knowledge the first plant MAPK-interacting proteins. We identified 80 nonredundant interacting protein pairs (74 nonredundant interactors) for rice MAPKs and elucidated the novel proteome-wide network of MAPK interactors. The established interactome contains four membrane-associated proteins, seven MAP2Ks (for MAPK kinase), four MAPKs, and 59 putative substrates, including 18 transcription factors. Several interactors were also validated by experimental approaches (in vivo and in vitro) and literature survey. Our results highlight the importance of OsMPK1, an ortholog of tobacco (Nicotiana benthamiana) salicyclic acid-induced protein kinase and Arabidopsis (Arabidopsis thaliana) AtMPK6, among the rice MAPKs, as it alone interacts with 41 unique proteins (51.2% of the mapped MAPK interaction network). Additionally, Gene Ontology classification of interacting proteins into 34 functional categories suggested MAPK participation in diverse physiological functions. Together, the results obtained essentially enhance our knowledge of the MAPK-interacting protein network and provide a valuable research resource for developing a nearly complete map of the rice MAPK interactome.

著者

Nishimura Hirokazu

巻号頁・発行日

pp.1-12, 2012-10-18

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Given a complete and (locally) cartesian closed category U, it is shown that the category of functors from the category of Weil algebras to the category U is (locally, resp.) cartesian closed. The corresponding axiomatization for differential geometry is then given.

著者

Kondo Takahiro Kato Hiroyuki S. Bonn Mischa Kawai Maki

出版者

American Institute of Physics

雑誌

The journal of chemical physics (ISSN:00219606)

巻号頁・発行日

vol.127, no.9, pp.094703, 2007-09

被引用文献数

41 20

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The deposition and the isothermal crystallization kinetics of thin amorphous solid water (ASW) films on both Ru(0001) and CO-precovered Ru(0001) have been investigated in real time by simultaneously employing helium atom scattering, infrared reflection absorption spectroscopy, and isothermal temperature-programmed desorption. During ASW deposition, the interaction between water and the substrate depends critically on the amount of preadsorbed CO. However, the mechanism and kinetics of the crystallization of ~50 layers thick ASW film were found to be independent of the amount of preadsorbed CO. We demonstrate that crystallization occurs through random nucleation events in the bulk of the material, followed by homogeneous growth, for solid water on both substrates. The morphological change involving the formation of three-dimensional grains of crystalline ice results in the exposure of the water monolayer just above the substrate to the vacuum during the crystallization process on both substrates.

著者

呉 剛 松下 秀介

出版者

筑波大学農林学系

雑誌

筑波大学農林社会経済研究 (ISSN:09140271)

巻号頁・発行日

no.28, pp.27-47, 2012-03-01