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          (online-Seminar)Spatiotemporal self-organization in living systems at multi-scales
          2020-09-03  【 】【打印】【關閉

          CAS Key Laboratory of Theoretical Physics

          Institute of Theoretical Physics

          Chinese Academy of Sciences

          Seminar

          Title

          題目

          Spatiotemporal self-organization in living systems at multi-scales

          Speaker

          報告人

          Dr. Yuansheng Cao (曹遠勝)

          Affiliation

          所在單位

          Department of Physics, University of California, San Diego

          Date

          日期

          2020年9月3日(星期四)10:30am - 11:30am

          Venue

          地點

          騰訊會議ID: 554 811 019

          Contact Person

          所內聯系人

          周海軍

          Abstract

          摘要

          Despite the huge differences in spatiotemporal scales, the processes in living systems share a common feature--self-organization. As physicists, we are provided and are developing a lot of tools to understand the principles of complex self-organization in biology. I will talk about three stories about self-organization from molecular, to cellular and multi-cellular scales. At the molecular level, I will focus on the synchronization of molecular clocks, from the perspective of phase transition and free energy consumption. I will show that the synchronization of noisy molecular clocks costs additional free energy which explains the puzzle of ATPase activities in the cyanobacterial circadian clock. At the cellular level, I will describe a minimal model with simple mechanochemical coupling to explain the complex plasticity of cell migration. The model predictions are verified by cell experiments. At the multi-cellular level, I will discuss the formation of a beautiful flower-like pattern in a bacterial colony. The pattern formation can be understood by the mechanical instability caused by bacterial growth and motility. The physical principles in these studies can be further applied to fundamental studies such as biological information processing and clinical studies such as cancer metastasis.
          IE6.0瀏覽器,1024X768分辨率 版權所有 ? 中國科學院理論物理研究所
          地址:北京市海淀區中關村東路55號 郵政編碼:100190
          京ICP備05002865號】 京公網安備1101080094號
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                天码欧美日本一道免费 偷自拍亚洲综合在线 特级毛片a级毛片免费观看