报告题目：Hexagonal-rhombic-square-rectangular phase transitions…

报 告 人：罗森平

时 间：2022年4月27日（周三）下午2:30-4:30

地 点：腾讯会议：355300809（会议密码220427）

简 介：We show and prove the hexagonal-rhombic-square-rectangular phase Transition in tri-block copolymers and Bose-Einstein condensates, and as a consequence, we give a partial and positive answer to optimal lattice arrangements of vortices in competing systems of Bose-Einstein condensates as conjectured (and numerically and experimentally verified) by Mueller-Ho 《PRL》2002, this is the first progress on Mueller-Ho conjecture.

报告题目：On the existence and stability of travelling vortex pa…

报 告 人：詹伟城

时 间：2022年4月28日（周四）下午3:00-4:00

地 点： 腾讯会议：518699488

简 介：In this talk, I will introduce some recent results of the existence and stability of travelling vortex pairs for the generalized surface quasi-geostrophic equation. This is based on a joint work with Daomin Cao, Guolin Qin and Changjun Zou.

报告题目：Interlocked feedback loops balance the adaptive immune…

报 告 人：杨 凌

时 间：2022年4月23日（周六）下午2：30-:4：30

地 点：腾讯会议: 653538938

简 介：Adaptive immune responses can be activated by harmful stimuli. Upon activation, a cascade of biochemical events ensues the proliferation and the differentiation of T cells, which can remove the stimuli and undergo cell death to maintain immune cell homeostasis. However, normal immune processes can be disrupted by certain dysregulations, leading to pathological responses, such as cytokine storms and immune escape. In this paper, a qualitative mathematical model, composed of key feedback loops within the immune system, was developed to study the dynamics of various response behaviors. First, simulation results of the model well reproduce the results of several immune response processes, particularly pathological immune responses. Next, we demonstrated how the interaction of positive and negative feedback loops leads to irreversible bistable, reversible bistable and monostable, which characterize different immune response processes: cytokine storm, normal immune response, immune escape...