KINDAI UNIVERSITY


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ICHINO Takatoshi

Profile

FacultyDepartment of Computational Systems Biology / Graduate School of Biology-Oriented Science and Technology
PositionLecturer
Degree
Commentator Guidehttps://www.kindai.ac.jp/meikan/462-ichino-takatoshi.html
URL
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Last Updated :2020/06/01

Research Activities

Research Areas

  • Life sciences, Biophysics
  • Natural sciences, Bio-, chemical, and soft-matter physics
  • Natural sciences, Mathematical physics and basic theory

Research Interests

  • Reaction-Diffusion System, Nonlinear Science

Published Papers

  • Cooperative standing-horizontal-standing reentrant transition for numerous solid particles under external vibration, TAKATORI Satoshi, BABA Hikari, ICHINO Takatoshi, Chwen-Yang Shew, YOSHIKAWA Kenichi, Scientific Reports, Scientific Reports, 8, 437, Jan. 2018 , Refereed
  • Spiral Waves in Gene Expression of Cellular Circadian Clocks in Plant Leaf, Hirokazu Fukuda, Takatoshi Ichino, Keiko Kohmoto, Haruhiko Murase, Synergy of Arts and Science, Synergy of Arts and Science, 16, 191 - 196, Oct. 2012 , Refereed
  • Early Diagnosis of Productivity Through a Clock Gene Promoter Activity Using a Luciferase Bioluminescence Assay in Arabidopsis thaliana, Hirokazu Fukuda, Takatoshi Ichino, Takao Kondo, Haruhiko Murase, Environment Control in Biology, Environment Control in Biology, 49, 51 - 60, Sep. 2011 , Refereed
  • Microfreight Delivered by Chemical Waves, The Journal of Physical Chemistry C, The Journal of Physical Chemistry C, 112, 3032 - 3035, Feb. 2008
  • Wave Propagation in the Photosensitive Belousov-Zhabotinsky Reaction Across an Asymmetric Gap, Takatoshi Ichino, Kenji Fujio, Mariko Matsushita, Satoshi Nakata, JOURNAL OF PHYSICAL CHEMISTRY A, JOURNAL OF PHYSICAL CHEMISTRY A, 113(11), 2304 - 2308, Mar. 2009 , Refereed
    Summary:The photosensitive Belousov-Zhabotinsky (BZ) reaction was investigated at an asymmetrically illuminated gap, which was drawn using computer software and then projected on a filter paper soaked with BZ solution using a liquid-crystal projector. The probability of the chemical wave passing through the gap with asymmetric illumination was different from that through its mirror image. The location at which the wave disappeared and the time delay of the chemical wave passing through the gap changed depending on the velocity of chemical wave propagation. The experimental results were qualitatively reproduced by a theoretical calculation based on the three-variable Oregonator model that included photosensitivity. These results suggest that the photosensitive BZ reaction may be useful for studying spatiotemporal development that depends on the geometry of excitable fields.
  • Coexistence of wave propagation and oscillation in the photosensitive Belousov-Zhabotinsky reaction on a circular route, Satoshi Nakata, Sayaka Morishima, Takatoshi Ichino, Hiroyuki Kitahata, JOURNAL OF PHYSICAL CHEMISTRY A, JOURNAL OF PHYSICAL CHEMISTRY A, 110(50), 13475 - 13478, Dec. 2006
    Summary:The photosensitive Belousov-Zhabotinsky (BZ) reaction was investigated on a circular ring, which was drawn using computer software and then projected on a film soaked with BZ solution using a liquid-crystal projector. Under the initial conditions, a chemical wave propagated with a constant velocity on the black ring under a bright background. When the background was rapidly changed to dark, coexistence of the oscillation on part of the ring and propagation of the chemical wave on the other part was observed. These experimental results are discussed in relation to the nature of the photosensitive BZ reaction and theoretically reproduced based on a reaction-diffusion system using the modified Oregonator model.
  • Direction-distance detector on an excitable field, T Ichino, PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT, PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT, 161(161), 204 - 207, 2006
    Summary:Both the direction and distance of the wave source of an excitable wave were detected on excitable media in both an experiment and a numerical simulation. By detecting the time-difference between two inputs, we were able to calculate the trajectory of wave propagation. The position of the wave source was then evaluated by considering two different trajectories that depended on a time-difference.
  • Propagation of photosensitive chemical waves on the circular routes, H Kitahata, A Yamada, S Nakata, T Ichino, JOURNAL OF PHYSICAL CHEMISTRY A, JOURNAL OF PHYSICAL CHEMISTRY A, 109(22), 4973 - 4978, Jun. 2005
    Summary:The propagation of chemical waves in the photosensitive Belousov-Zhabotinsky (BZ) reaction was investigated using an excitable field in the shape of a circular ring or figure "8" that was drawn by computer software and then projected on a film soaked with BZ solution using a liquid-crystal projector. For a chemical wave in a circular reaction field, the shape of the chemical wave was investigated depending on the ratio of the inner and outer radii. When two chemical waves were generated on a field shaped like a figure "8" (one chemical wave in each circle) as the initial condition, the location of the collision of the waves either was constant or alternated depending on the degree of overlap of the two circular rings. These experimental results were analyzed on the basis of a geometrical discussion and theoretically reproduced on the basis of a reaction-diffusion system using a modified Oregonator model. These results suggest that the photosensitive BZ reaction may be useful for creating spatio-temporal patterns depending on the geometric arrangement of excitable fields.
  • Direction detector on an excitable field: Field computation with coincidence detection, H Nagahara, T Ichino, K Yoshikawa, PHYSICAL REVIEW E, PHYSICAL REVIEW E, 70(3), Sep. 2004
    Summary:Living organisms process information without any central control unit and without any ruling clock. We have been studying a novel computational strategy that uses a geometrically arranged excitable field, i.e., "field computation." As an extension of this research, in the present article we report the construction of a "direction detector" on an excitable field. Using a numerical simulation, we show that the direction of a input source signal can be detected by applying the characteristic as a "coincidence detector" embedded on an excitable field. In addition, we show that this direction detection actually works in an experiment using an excitable chemical system. These results are discussed in relation to the future development of "field computation."

Conference Activities & Talks

  • Observation of BZ Reaction under Faraday Wave, Takatoshi Ichino, Makoto Ozawa, Mizuki Ichizu, The International Workshop Symposium on Nonlinear Sciences,   2016 09 27
  • Self-Emergence of Spatial Order on number of Standing Objects with the Time-Development through Reentrant Bifurcation, Stationary-Fluctuation-Stationary: Experiment with Vibrating Plate, Satoshi Takatori, Takatoshi Ichino, Kenichi Yoshikawa, 2015 International Chemical Congress of Pacific Basin Societies,   2015 12
  • Collective Motion of Intermittent Camphor boats, ICHINO Takatoshi, 2015 International Chemical Congress of Pacific Basin Societies,   2015 12
  • Numerical Simulation of Gene Expression Pattern in Plant Leaf, ICHINO Takatoshi, The 2013 IFAC Bio-Robotics Conference,   2013 03

Research Grants & Projects

  • Information processing according to geometrical shap of the excitable field