System Size Resonance Associated with Canard Phenomenon in a Biological Cell System  

System Size Resonance Associated with Canard Phenomenon in a Biological Cell System

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作  者:Juan Ma Hong-ying Li Zhong-huai Hou Hou-wen Xin 

机构地区:[1]Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China [2]Hefei National Lab of Physical Science at Microscale, University of Science and TechnoloEy of China, Hefei 230026, China [3]Department of Chemistry, Hefei Teachers College, Hefei 230000, China

出  处:《Chinese Journal of Chemical Physics》2008年第6期521-525,共5页化学物理学报(英文)

基  金:ACKNOWLEDGMENTS This work was supported by the National Natural Science Foundation of China (No.20433050 and No.20673106).

摘  要:The influence of internal noise on the calcium oscillations is studied. It is found that stochastic calcium oscillations occur when the internal noise is considered, while the corresponding deterministic dynamics only yields a steady state. Also,. the performance of such oscillations shows two maxima with the variation of the system size, indicating the occurrence of system size resonance. This behavior is found to be intimately connected with the canard phenomenon. Interestingly, it is also found that one of the optimal system sizes matches well with the real cell size, and such a match is robust to the variation of the control parameters.

关 键 词:Internal noise Calcium oscillations System size resonance Canard phenomenon 

分 类 号:O321[理学—一般力学与力学基础] TB53[理学—力学]

 

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