Mikio Kataoka

Northwest African American Museum

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Hironari Kamikubo

Nara Institute of Science and Technology

Yoichi Yamazaki

Kwansei Gakuin University

Mariko Yamaguchi

Osaka University of Pharmaceutical Sciences

Fumio Tokunaga

Osaka University

Keito Yoshida

Nagoya Women's University

Kento Yonezawa

Nara Institute of Science and Technology

Masashi Yano

Toho University

Seishi Hanaoka

Hitachi (Japan)

Noji Masayoshi

Northwest African American Museum

Mayu Shimad

Northwest African American Museum

Cooperative Institutions

Osaka University

Northwest African American Museum

Nara Institute of Science and Technology

Kyoto University

Hitachi (Japan)

RIKEN

Japan Science and Technology Agency

The University of Tokyo

University of Oxford

SPring-8

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気管支喘息の難治化機構とその対策成人喘息の立場から-臨床マーカー-

アレルギー (2008)

Tanimoto Yasushi Takahashi Kiyoshi Hirano Atsushi Okada Chiharu Mikio Kataoka

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Arginine remarkably prolongs the lifetime of the M‐intermediate in the bacteriorhodopsin photocycle at room temperature

FEBS Letters (1989)

Masayoshi Nakasako Mikio Kataoka Fumio Tokunaga

The lifetime of the M‐intermediate in the bacteriorhodopsin photocycle was remarkably prolonged on drying a suspension of purple membrane, in arginine solution at alkaline pH. The M‐intermediate could be completely accumulated under illumination (530 nm) at room temperature. The crystalline structure of purple membranes was retained after this treatment. The lifetime of the M‐intermediate was found to be longer than 100 s and depended on the pH of the purple membrane suspension before drying. It was suggested that an interaction between the guanidium group of arginine and an amino acid residue played an important role in the prolongation.

Suspension

Residue (chemistry)

10.1016/0014-5793(89)81041-5

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Citations (20)

A case of candidemia and pulmonary candidiasis after transurethral lithotripsy.

Yosuke Inoue Sugimoto Morito Oeda Tadashi Mikio Kataoka Kashino Kaori

Fungemia

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Distributed Cache System for Large-Scale Networks

Mikio Kataoka Kunihiko Toumura Hideki Okita Junji Yamamoto Toshiaki Suzuki

Network traffic has been rapidly increasing in proportion along with the spread of broadband access networks. The traffic of the core network is predicted to exceed its transmission capability in the near future. Therefore, we propose a centrally controlled cache system with distributed cache storage in the access network. In this system, a cache control server manages a list of all contents cached by multiple cache servers. It can provide content requested by a user if it is cached in any of the cache servers in the access network. Additionally, it can reduce network traffic between the core network and the access network if the requested contents are cached in the cache server of the access network. We examine issues for the implementation of our system, and describe a prototype system. As a result of evaluation of the system, we have made it clear that our system architecture is suitable for an access network that accommodates one million users

Smart Cache

Cache invalidation

Cache pollution

Page cache

Core network

10.1109/iccgi.2006.26

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Citations (9)

2P252 Protonation state of R52 at the PYP_M intermediate state(18A. Photobiology: Vision & Photoreception,Poster)

Seibutsu Butsuri (2013)

Noji Masayoshi Hironari Kamikubo Yoichi Yamazaki Mariko Yamaguchi Mikio Kataoka

Photoactive Yellow Protein (PYP) is a photoreceptor protein that absorbs blue light with p-coumaric acid as a chromophore.We identified the light dependent interaction protein of PYP named PBP from Rhodobacter capsulatus (Rc).This is the only target protein of PYP homologues revealed so far.In order to clarify the mechanism of light dependent interaction of PBP with Rc-PYP, we aimed to identify the interaction sites on Rc-PYP by using chimeric mutants of Rc-PYP and Hh-PYP and Ala mutations on Rc-PYP.As a result of verification of binding ability in each mutant, Lysine 72 is assigned as an interaction key role residue.K72A mutant decreased its binding affinity to PBP, but K72Q was not.This indicates that the side chain length is important to interaction with PBP.

Photobiology

10.2142/biophys.53.s200_5

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Evaluation of inter base station handover for cognitive radio

Mikio Kataoka Takashi Ishikawa Seishi Hanaoka Masashi Yano Shinji Nishimura

Cognitive radio system consists of multiple wireless accesses that cover overlapping area, and cognitive terminals that use one or more of the wireless accesses simultaneously. In this paper, we present the architecture of the cognitive radio system that we proposed. In the proposed architecture, each cognitive terminal, that has multiple radio systems, operates with a single local IP address. Based on the proposed architecture, we have developed a simulator with EVDO, WiMAX and wireless LAN, and evaluated inter cognitive base station handover. From a result of simulation, it was found that it took 66 msec for the beginning of handover to the end.

WiMAX

Cognitive network

10.1109/rws.2008.4463476

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Citations (2)

Evidence concerning rate-limiting steps in protein folding from the effects of trifluoroethanol.

Nature Structural & Molecular Biology (2000)

Christopher M. Dobson Daizo Hamada Fabrizio Chiti J. Iñaki Guijarro Mikio Kataoka

Folding funnel

Lattice protein

Folding (DSP implementation)

Contact order

Guanidine

Limiting

10.1038/71259

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Citations (71)

Basic Simulation Result of Inter System Handover for Cognitive Radio

Takashi Ishikawa Seishi Hanaoka Mikio Kataoka Masashi Yano Shinji Nisimura

Cognitive radio system consists of multiple wireless accesses that cover overlapping area, and cognitive terminals that use one or more of the wireless accesses simultaneously. We had proposed the architecture of the cognitive radio system, the inter-system handover protocols and packet format designed to achieve fast handover among the radio systems. Based on the proposed architecture, we have developed a simulator that supports EVDO, WiMAX and wireless LAN, and we have simulated the inter system handover where one cognitive base station covered. Through the simulation, we have proved that the system changes with following the movement of cognitive terminal and that the transmission data can be delivered continuously regardless the system handover.

WiMAX

10.1109/fgcn.2007.77

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Citations (2)

3P246 The elucidation of the relationship between β4-5 loop region and the chromophore environment in PYPs(Photobiology: Vision & Photoreception,Poster,The 52th Annual Meeting of the Biophysical Society of Japan(BSJ2014))

Seibutsu Butsuri (2014)

Atsuhiro Kawamura Yoichi Yamazaki Hironari Kamikubo Mikio Kataoka

Photobiology

Chromophore

10.2142/biophys.54.s289_6

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