Kyushu Univ. Hiroshi Yoshida Web Site

Richard D. Campbell, who carried out many experiments in Hydra, noted the following (Campbell, R.D., 1974. “Cell movements in Hydra,” Am. Zool. Vol. 14, pp. 523–535): “The cells and tissues of hydra are in continuous flux. The polyp undergoes perpetual growth and tissue loss, coupled by balanced cell renewal patterns involving all cell types.” Further, A. M. Turing's pioneer work (Philos. trans. R. Soc. Lond., Ser. B Vol. 237, pp. 37-72, 1952) also dealt with modeling of Hydra's tentacles. I have studied a method for analyzing multicell-turnover patterns by using multivariable polynomials (Polynomial life model). (For more details: Research )