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arXiv physics/0506058physics.bio-phphysics.med-ph
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相关噪声对肿瘤生长的影响

Influence of Correlated Noises on Growth of a Tumor

Wei-Rong Zhong, Yuan-Zhi Shao, Zhen-Hui He

摘要:

基于Logistic生长模型研究了加性和乘性噪声对肿瘤生长的影响。给出了肿瘤细胞的稳态概率分布和平均种群数,说明了相关噪声在肿瘤生长中的重要作用。我们发现,乘性噪声诱导肿瘤生长从单稳态到双稳态的相变,乘性噪声强度与肿瘤细胞数量之间的关系呈现出类似随机共振的特征。还证实了加性噪声减弱而不是消除肿瘤生长。然而,人类的噪音会促进肿瘤的生长。并讨论了肿瘤治疗与模型的关系。

英文摘要:

We studied the effect of additive and multiplicative noises on the growth of a tumor based on a logistic growth model. The steady-state probability distribution and the average population of the tumor cells were given to explain the important roles of correlated noises in the tumor growth. We found that multiplicative noise induces a phase transition of the tumor growth from an uni-stable state to a bi-stable state; the relationship between the intensity of multiplicative noise and the population of the tumor cells showed a stochastic resonance-like characteristic. It was also confirmed that additive noise weakened rather than extinguish the tumor growth. Homologous noises, however, promote the growth of a tumor. We also discussed about the relationship between the tumor treatment and the model.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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