报告人: 靳 祯(山西大学)
报告题目:Whether isolating high-degree nodes in network can reduce the final size of infectious diseases ?
报告摘要:New and emergent infectious diseases (NEIDs) have exacted heavy public health and economic tolls due to absence of targeted prevention and control measures. In general, the most intuitive intervention measure on NEIDs is to isolate the nodes with high degree in network to decrease the final size of infectious diseases. As such, the isolating timeliness becomes considerably crucial. Whether can isolating high-degree nodes at any time reduce the final size? In this talk, based on a switched mean field SIR model, we obtained a time threshold of isolating high-degree nodes. Before the threshold, the isolating measure reduces the final size, and otherwise increases the final size. In addition, we obtained another time threshold for epidemic duration by simulation, before which, the isolating measure lengthens epidemic duration, and otherwise shortens epidemic duration. Between such two time thresholds, the isolating measure can both reduce the final size of the epidemic and shorten epidemic duration. This result provides a good guideline for formulating network-based control measures on NEIDs.
报告人简介:教授,博士生导师,山西大学复杂系统研究所学术带头人。山西省数学会理事长。中国生物数学学会副理事长,中国数学会理事。研究兴趣:主要有生物动力系统、复杂网络、健康大数据分析。包括种群动力学和传染病动力学的数学建模与研究、微分方程定性和稳定性理论及应用、时滞微分方程理论及应用、脉冲微分方程理论及应用、离散动力系统理论及应用、细胞自动机在生态和流行病中的应用研究、空间扩散的种群和传染病动力系统、复杂网络上传播动力学等。
个人荣誉:先后山西省高等学校青年学科带头人,获得教育部新世纪优秀人才,山西省教学名师,山西省优秀科技工作者,山西省新世纪学术技术带头人,全国优秀教师,山西省委联系高级专家,山西省科教兴晋突出贡献专家,享受国务院政府特殊津贴,山西省五一劳动奖章获得者,山西省高等学校拔尖创新人才。山西省科技创新团队带头人。
科研概况:主持国家自然基金项目6项,其中国家基金重点项目1项,参与国家自然科学基金2项,主持高等学校博士点基金2项,其中优先资助1项,科技部重点研发项目1项,其他省部级项目20余项。在《Journal of Differential Equations》、《Scientific Reports》、《J. R. Soc. Interface》、《PLoS One》、《Bull. Math. Biol.》、《J. Theor. Biol.》、《Phys. Rev. E》等国内外重要学术期刊发表学术论文300余篇,被SCI收录200余篇(含通信作者)。
报告时间:2019年5月9日(星期四)上午8:30-9:30.
报告地点:科技楼南602室