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庾建设教授学术报告

  发布日期:2019-03-06  浏览量:309


报告题目:Modelling Wolbachia infection dynamics in mosquito populations via discrete dynamical equations

报 告 人: 庾建设教授 (广州大学)

报告摘要:How to prevent and control the outbreak of Mosquito-borne diseases, such asmalaria, dengue fever and Zika, is a worldwide public health security problem. The most conventional method for the control of these diseases is to directly kill mosquitoes by relying on insecticides to stomp down their numbers, larval sourcereduction and community mosquito eradication, which has been one of the major intensive efforts in many years. However, this traditional method is not sustainable to keep the mosquito density below the epidemic risk threshold. More recently, a novel strategy for bio-control of diseases transmitted by mosquitoes has been proposed that uses Wolbachia pipiens to stop the transmission of pathogens. In this paper, our purpose is to formulate models to study the Wolbachia infection dynamics based on a discrete dynamical equation. Our analysis shows that there is a maximal maternal leakage rate threshold, denoted by, such that infected mosquitoes can persist provided the maternal leakage rate _ does not go up to For the situation when, we find the minimal Wolbachia infection frequency threshold, denoted by, such that the infected mosquitoes can persist provided the initial infrequency   is not less than  . For the case when  . we find the release rate threshold, denoted by  , such that Wolbachia infection can also persist provided the release rate  is not less than  . When the first release is not successful, that is, the next generation infection frequency still fails to reach  , we find the least release times,denoted by  , such that the infection frequency can achieve  after consecutive releases with a fixed release rate.

报告时间: 201937(周四)上午8:30-9:30

报告地点:磬苑校区澳门赌搏网站大全H306

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专家概况:庾建设,教授,博士生导师,原广州大学校长,国家杰出青年基金获得者。主要从事微分方程动力系统、差分方程及生物数学模型的理论与应用研究,在J. Differential Equations》、《SIAM Journal of Applied Mathematics》、《Journal of Mathematics Biology、《中国科学》等国内外学术期刊发表论文100多篇,先后主持国家自然科学基金重点项目3项、国家自然科学基金面上项目4项,主持教育部高校博士点基金和其他省部级基金10余项。入选国家百千万人才工程第一、二层次人选,被评为国家有突出贡献的中青年专家

 

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