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the liquid crystalline depends on the fatty acid position. on the other hand, researches in biophysics also push forward the development of physics, lead to more applications in bionics such as ai and neural network now i am doing my diploma thesis at the institute of physics, chinese academy of science. my topic is about investigating coherent backscattering in a random scattering medium by the henew laser. light in certain dielectric microstructures exhibits localized modes, similar to the localized wave function of electrons in disordered solidsanderson localization. the propagation of light in a scattering medium can be described as random walk of photons with the direction of each succeeding step determined by the laws of probability. the topic spans the disciplines of condensed matter physics and quantum opties. i have absorbed a lot of relative knowledge such as random walk, peroration models stochastic process to prepare for my project .i think the method i dynamics of chemical reactions. since my background focused on physics, mathematics, electronics, lasers and optics, i have taught myself some beginning biology and chemistry courses this year, discussed them with teacher sin the dept of biological science and technology at tsinghua university i would also like to take more basic courses in this field under your guidance to make up my deficiency. from college guides i learned with pleasure that you had strong faculty with a variety of background in physics, chemistry, mathematics and electrical engineering. it is often in the multidisciplinary research that came the most exciting discovery. your group also provides outstanding opportunities for close interaction between graduate students and faculty. that is why i deem your program as my best choice. besides, i want to link modern biophysics with chinese medicine to get prehensive understanding of life.