Classification and stability of global inhomogeneous solutions of a macroscopic model of cell motion.

Classification and stability of global inhomogeneous solutions of a macroscopic model of cell motion.
复制标题

DOI:
10.1016/j.mbs.2012.03.009
复制
发表时间:
2012-07
影响因子:
4.3
通讯作者:
Alber M
Alber M
中科院分区:
生物学4区
文献类型:
--
作者:
Gejji R;Kazmierczak B;Alber M

文献摘要

参考文献

相似文献

许多微生物利用趋化性进行聚集,从而形成稳定的模式。在本文中,变形虫盘基网柄菌作为模型生物,用于理解所产生模式的聚集和分类条件。为了实现这一点,一维非线性扩散方程与趋化模型阿米巴行为进行了分析。对稳态解进行了分类,并利用李雅普诺夫泛函确定了非齐次解的稳定性条件。改变化学敏感性、化学引诱剂的产生速率或域长度可以使系统从具有渐近稳定状态转变为具有渐近稳定的单步解和多步稳定的平台解。
Many micro-organisms use chemotaxis for aggregation, resulting in stable patterns. In this paper, the amoeba Dictyostelium discoideum serves as a model organism for understanding the conditions for aggregation and classification of resulting patterns. To accomplish this, a 1D nonlinear diffusion equation with chemotaxis that models amoeba behavior is analyzed. A classification of the steady state solutions is presented, and a Lyapunov functional is used to determine conditions for stability of inhomogenous solutions. Changing the chemical sensitivity, production rate of the chemical attractant, or domain length can cause the system to transition from having an asymptotic steady state, to having asymptotically stable single-step solution and multi-stepped stable plateau solutions.
DOI: 10.1137/0911001
发表时间: 1990-01-01
期刊: SIAM JOURNAL ON SCIENTIFIC AND STATISTICAL COMPUTING
影响因子: --
作者:
SKEEL, RD;BERZINS, M
通讯作者: BERZINS, M
DOI: 10.1016/j.aml.2009.05.013
发表时间: 2009-11-01
影响因子: 3.7
作者:
Alber, Mark;Gejji, Richard;Kazmierczak, Bogdan
通讯作者: Kazmierczak, Bogdan
DOI: 10.1007/s00285-008-0201-3
发表时间: 2009-01-01
影响因子: 1.9
作者:
Hillen, T.;Painter, K. J.
通讯作者: Painter, K. J.
DOI: 10.1140/epjb/e2008-00142-9
发表时间: 2008-03-01
影响因子: 1.6
作者:
Chavanis, P. H.
通讯作者: Chavanis, P. H.
DOI: 10.1016/0167-2789(95)00075-f
发表时间: 1995-08-01
影响因子: 4
作者:
HOFER, T;SHERRATT, JA;MAINI, PK
通讯作者: MAINI, PK