Noise Attenuation in Biological Systems

Qing Nie
Biomedical Engineering & Mathematics, University of California, Irvine

(April 18, 2011 2:30 PM - 3:30 PM)

Noise Attenuation in Biological Systems

Abstract

In this talk, we will first introduce a new quantity called Signed Activation Time (SAT), which is found to be critical in determining noise attenuation capability of a feedback system. We will next study how noise amplification rates of several biological examples may depend on SAT and investigate strategies for noise attenuation in systems involving both extra-cellular and intra-cellular components. In particular, we will study boundary sharpening during Zebrafish embryonic development.