文献类型：期刊文献

英文题名：Time scales of epidemic spread and risk perception on adaptive networks

作者：Zhong, Lixin[1];Qiu, Tian[2];Ren, Fei[3];Li, Pingping[4];Chen, Bihui[1]

机构：[1]Zhejiang Univ Finance & Econ, Sch Finance, Hangzhou 310018, Peoples R China;[2]Nanchang Hangkong Univ, Sch Informat Engn, Nanchang 330063, Peoples R China;[3]E China Univ Sci & Technol, Sch Business, Shanghai 200237, Peoples R China;[4]Wenzhou Univ, Sch Phys & Elect Informat, Wenzhou 325027, Peoples R China

年份：2011

卷号：94

期号：1

外文期刊名：EPL

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000289622200026)】；

基金：This work is the research fruits of the National Natural Science Foundation of China (Grant Nos. 10805025, 10905023), the Humanities and Social Sciences Fund sponsored by the Ministry of Education of China (Grant Nos. 10YJAZH137, 09YJCZH042), Social Science Foundation of Zhejiang Province (Grant No. 10CGGL14YB) and the Natural Science Foundation of Zhejiang Province (Grant No. Y6110687).

语种：英文

摘要：Incorporating dynamic contact networks and delayed awareness into a contagion model with memory, we study the spreading patterns of infectious diseases in connected populations. It is found that the spread of an infectious disease is not only related to the past exposures of an individual to the infected but also the time scales of risk perception reflected in the social-network adaptation. The epidemic threshold pc is found to decrease with the rise of the time scale parameter s and the memory length T, which satisfies the equation pc = 1/T + omega T/< k > a(s)(1-e(-omega T2)/a(s)). Both the lifetime of the epidemic and the topological property of the evolved network are considered. The standard deviation sigma(d) of the degree distribution increases with the rise of the absorbing time t(c), a power-law relation sigma(d) = mt(c)(gamma) is found. Copyright (C) EPLA, 2011