M
Masaharu Nagayama
Researcher at Hokkaido University
Publications - 77
Citations - 1261
Masaharu Nagayama is an academic researcher from Hokkaido University. The author has contributed to research in topics: Reaction–diffusion system & Calcium. The author has an hindex of 18, co-authored 74 publications receiving 1016 citations. Previous affiliations of Masaharu Nagayama include National Presto Industries & Yamaguchi University.
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A theoretical and experimental study on the unidirectional motion of a camphor disk
TL;DR: In this article, the authors investigated the self-sustaining motion of a camphor disk in an annular water channel and quantitatively reproduced its self-motion by numerical computations using a mathematical model that incorporates the distribution of the camphor layer around the disk and the viscosity of the aqueous phase.
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Physicochemical design and analysis of self-propelled objects that are characteristically sensitive to environments.
TL;DR: This work focuses on nonlinearity to enhance autonomy and the response of the system, since characteristic nonlinear phenomena, such as oscillation, synchronization, pattern formation, bifurcation, and hysteresis, are coupled to self-motion of which driving force is the difference in the interfacial tension.
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Type XVII collagen coordinates proliferation in the interfollicular epidermis
Mika Watanabe,Ken Natsuga,Wataru Nishie,Yasuaki Kobayashi,Giacomo Donati,Giacomo Donati,Shotaro Suzuki,Yu Fujimura,Tadasuke Tsukiyama,Hideyuki Ujiie,Satoru Shinkuma,Satoru Shinkuma,Hideki Nakamura,Masamoto Murakami,Michitaka Ozaki,Masaharu Nagayama,Fiona M. Watt,Hiroshi Shimizu +17 more
TL;DR: It is shown that COL17 plays a central role in regulating interfollicular epidermis (IFE) proliferation and could be an important target of anti-aging strategies in the skin.
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Pulse–pulse interaction in reaction–diffusion systems
TL;DR: In this article, it was shown that if there are travelling pulses which primarily and super-critically bifurcate from a standing pulse when some parameter is varied, they possess reflection mechanism if the velocity is very slow.
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Chemosensitive running droplet.
Yutaka Sumino,Hiroyuki Kitahata,Kenichi Yoshikawa,Masaharu Nagayama,Shin Ichiro M. Nomura,Nobuyuki Magome,Yoshihito Mori +6 more
TL;DR: Experimental results show that the self-motion of an oil droplet is confined on an acid-treated glass surface, and a mathematical model that incorporates the effect of the glass surface charge is built based on the experimental observation of oil-droplet motion.