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아래와 같이 콜로퀴움을 개최하오니 많이 참석해 주시기 바랍니다.

4시 20분부터 제1과학관 31214 e+강의실에서 다과를 준비하오니 많은 참석 부탁드립니다.

아 래

Title: Anomalous diffusion of single-molecules in living cells: at the interface of biology and statistical physics

Speaker: Prof. Jae-Hyung Jeon (Korea Institute for Advanced Study (KIAS))

Date & Time: Oct. 28 (Wed.) 2015, 4:30 PM

Place: Natural Science 1,  Room No. 31214

Abstract: In 1905 Einstein established the laws of diffusion, and in 1908  Perrin determined Avogadro’s number from diffusion measurements. Nowadays advanced experimental technique enable us to track real-time motion of single molecules inside a living cell with high precision. These experiments have shown that intracellular diffusions often deviate from Einstein’s diffusion laws. In this talk, we explore recent statistical physics studies initiated by the single-particle tracking experiments and how they help us towards the understanding of anomalous diffusion inside cell. In particular we discuss how the introduction of single-particle tracking tools challenges our conventional ergodic hypothesis underlying statistical physics, leading us to establish new theories to correctly interpret the experimental observations. It is shown that the individual trajectories obtained by experiment contain unique stochastic characters identifying the underlying physical mechanisms for anomalous diffusion. In particular, it turns out that the stochastic characters of biological anomalous diffusion are highly time-scale dependent as well as system-specific. 

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