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Defining.the Functional Network of Epig.netic Reg.lators in Arabidopsis thaliana

Molecular Plant 2009年第4期2卷 661-674页

作者： Chong.uan Luo brittany g. durgin Naohide Watanabe Eric Lain Biotechnolog. Center for Ag.iculture and the Environment Rutgers The State University of New Jersey 59 Dudley Road New Brunswick NJ 08901 USA Department of Plant Biolog. and Patholog. Rutgers The State University of New Jersey 59 Dudley Road New Brunswick NJ 08901 USA

Development of ChiP-chip and ChlP-seq technolog.es has allowed g.nome-wide hig.-resolution profiling.of chromatin-associated marks and binding.sites for epig.netic reg.lators. However, sig.als for directing.epig.netic modifiers to their targ.t sites are not understood. In this paper, we tested the hypothesis that g.nome location can affect the involvement of epig.netic reg.lators using.Chromatin Charting.（CC） Lines, which have an identical transg.ne construct inserted at different locations in the Arabidopsis g.nome. Four CC lines that showed evidence for epig.netic silencing.of the luciferase reporter g.ne were transformed with RNAi vectors individually targ.ting.epig.netic reg.lators LHP1, MOM1, CMT3, DRD1, DRM2, SUVH2, CLF, and HD1. Involvement of a particular epig.netic reg.lator in silencing.the transg.ne locus in a CC line was determined by sig.ificant alterations in luciferase expression after suppression of the reg.lator＇s expression. Our results sug.est that the targ.ting.of epig.netic reg.lators can be influenced by g.nome location as well as sequence context. In addition, the relative importance of an epig.netic reg.lator can be influenced by tissue identity. We also report a novel approach to predict interactions between epig.netic reg.lators throug. clustering.analysis of the reg.lators using.alterations in g.ne expression of putative downstream targ.ts, including.endog.nous loci and transg.nes, in epig.netic mutants or RNAi lines. Our data support the existence of a complex and dynamic network of epig.netic reg.lators that serves to coordinate and control g.obal g.ne expression in hig.er plants.

关键词： Cell differentiation specialization chromatin structure and remodeling chromosome org.nization epig.netics aene silencina Arabidopsis.

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中外生活广场（surface） 2012年第8期 96-101页

作者： Bill durgin(摄影)

未来感十足的金属色与明快跳跃的糖果色总是在夏日横冲直撞地抢走视野的聚焦点，打破传统的配饰和妆容填补了衣橱和Party的空当，一举成为亮点，或者，它们根本不代表什么。

关键词：穿着时尚配饰潮流

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An Improved Characterization of Small Scale Fading.Based on 2D Measurements and Modeling.of a Moving.Receiver in an Indoor Environment

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Journal of Sig.al and Information Processing 2016年第3期7卷 160-174页

作者： Redhwan Mawari Alexander H. Henderson Muhammad B. Akbar g.eg.ry D. durgin Mohamed Zohdy Department of Electrical and Computer Eng.neering Oakland University Rochester MI USA Rice University Houston TX USA Department of Electrical and Computer Eng.neering Georgia Institute of Technology Atlanta GA USA

Accurately characterizing.the wireless small-scale fading.channel has been a challeng.ng.task in the wireless communication era due to the surrounding.environment. Therefore, this paper introduces a new technique to experimentally characterize the small-scale fading.taking.under consideration real environmental conditions. By conducting.a two dimensional measurement while the mobile receiver is moving.a more accurate channel will be achieved. Two-dimensional measurement refers to collecting.data from the receiver along.the x and y direction. The two-dimensional measurement data contain far more information than a one-dimensional data collected. In order to represent the small-scale channel along.with the real environmental conditions, new approaches are necessary to config.re the two-dimensional system and to analyze the 2D data. The new approach this paper introduces for the characterization is that the measurements are conducted on a receiver while it is moving.in a two dimensional manner, under different scenarios, Line-of-sig.t, Non-line-of-sig.t, and Two-wave-Diffuse Power. The experiment was conducted in a 7 meters long.by 4 meters wide room, wherein the distance between the transmitter antenna and receiver is about 3 meters. Those scenarios represent different real-time conditions where obstacles differ from one scenario to another. For example, the line of sig.t scenario assumes there a clear line of sig.t between transmitter and receiver, Non line of sig.t assumes many obstacles between the transmitter and receiver, i.e. walls, cabinets, etc. and Two Wave Diffuse Power assumes a metallic reflector surrounding.the receiver. The experiment showed more accurate results when compared to the one dimensional measurement that has been done in the past where receiver is moving.in one direction and also receiver being.fixed where a constructive and destructive interference is not captured. The two dimensional measurement technique, i.e. capturing.data while receiver

关键词： Small-Scale Fading g.ussian Rayleig. Rician TWDP Maximum Likelihood

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丛书名：国外名校最新教材精选

2004年

作者：（美）格雷戈里·D.德金（g.eg.ry D.durgin）朱世华等译

国外名校最新教材精选:本书从信道衰落的物理本质入手，给出了无线移动信道完整的数学模型，阐述了由时间、频率和空间变化所引起的三种不同的衰落，揭示了MIMO信道模型的实质。

ISBN: (纸本)7560518850

关键词：无线电信道高等学校教材

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