...
首页> 外文期刊>Physica, A. Statistical mechanics and its applications >Noise induced intercellular propagation of calcium waves
【24h】

Noise induced intercellular propagation of calcium waves

机译:噪声引起的钙波在细胞间的传播

获取原文
获取原文并翻译 | 示例
           

摘要

In this paper, we investigate the spatiotemporal dynamics of a bidirectional coupled chain of cells, in which a cell is subjected to an external noise. Noisy oscillations of calcium (Ca2+), that is, a bursting-like phenomenon induced by noise with fluctuations in the baseline values of calcium, are induced in the first cell and propagated along the chain with noise suppression. This phenomenon of noise suppression is further investigated by computing the normalized fluctuation of pulse durations. It is therefore found that the noise induced coherence resonance phenomenon occurs at the cellular level. Coherence biresonance behaviour appears in the transmission of noise induced oscillations at appropriate noise intensity or noise coupling (for low noise intensity) and the information flow in each cell can be simultaneously optimized at the optimal value of noise or coupling. (C) 2008 Elsevier B.V. All rights reserved.
机译:在本文中,我们研究了双向耦合细胞链的时空动力学,其中细胞受到外部噪声的干扰。钙(Ca2 +)的噪声振荡,即由钙的基线值波动引起的噪声引起的爆裂现象,在第一个单元中被诱导并通过噪声抑制沿链传播。通过计算脉冲持续时间的标准化波动,可以进一步研究这种噪声抑制现象。因此发现噪声引起的相干共振现象发生在细胞水平上。相干双谐振行为出现在适当的噪声强度或噪声耦合(对于低噪声强度)的噪声诱发的振荡的传输中,并且可以在噪声或耦合的最佳值下同时优化每个单元中的信息流。 (C)2008 Elsevier B.V.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号