共查询到20条相似文献,搜索用时 46 毫秒
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人类基因组计划(HumanGenomeProject。HGP)迄今已为美国带来了超过投资额141倍的经济效益——美国非营利研究机构BattelleMemorialInstitute于2011年5月编制了HGP长期经济效益评价书。报告书得到的结论是, 相似文献
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生物信息学创新教学模式初探 总被引:5,自引:0,他引:5
生物信息学是生物科学中一门新兴的前沿学科。针对目前国内生物信息学教学现状,基于其他学科的成功教学模式,结合生物信息学课程特点,提出“以知识为中心,理论教学与实验教学有机结合”的教学模式。 相似文献
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生物信息学是20世纪80年代末随着人类基因组计划启动而兴起的一门新的交叉学科人类基因组研究中的海量数据处理问题需要通过生物信息学来解决。 相似文献
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利用生物信息学技术研究蛋白功能的几种方法 总被引:1,自引:0,他引:1
阐明基因的功能是后基因组计划的主要任务。生物信息学为解决这一难题提供了有力手段,生物信息学是用数理和信息学的观点,理论,方法研究生命现象,组织和分析呈指数增长的生物学数据的一门新型学科,本文介绍4种应用生物信息学技术研究蛋白功能的方法。 相似文献
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蛋白质组学及其意义 总被引:3,自引:0,他引:3
1 蛋白质组学的产生人类基因组计划 (Human Gemome Project HGP)是人类有史以来最伟大的认识自身的世纪工程 ,旨在阐明人类基因组 DNA3× 10 9核苷酸序列 ,希望在分子水平上破译人类所有的遗传信息。经过各国科学家十几年的努力 ,HGP已取得了巨大的成绩 ,预计在 2 0 0 5年完成全部测序的目标有望提前达到。那么 ,如何将这一计划获知的人类基因序列转变为对人类自身认识的知识 ?如何对这些基因加以利用呢 ?科学家认为 ,生命科学已进入了后基因组时代 ,而功能基因组 (FunctionalGenomics)的研究 ,则是这一时代的核心内容。可以说 ,HGP… 相似文献
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In experiments on Black Sea skates (Raja clavata), the potential of the receptor epithelium of the ampullae of Lorenzini and spike activity of single nerve fibers connected to them were investigated during electrical and temperature stimulation. Usually the potential within the canal was between 0 and –2 mV, and the input resistance of the ampulla 250–400 k. Heating of the region of the receptor epithelium was accompanied by a negative wave of potential, an increase in input resistance, and inhibition of spike activity. With worsening of the animal's condition the transepithelial potential became positive (up to +10 mV) but the input resistance of the ampulla during stimulation with a positive current was nonlinear in some cases: a regenerative spike of positive polarity appeared in the channel. During heating, the spike response was sometimes reversed in sign. It is suggested that fluctuations of the transepithelial potential and spike responses to temperature stimulation reflect changes in the potential difference on the basal membrane of the receptor cells, which is described by a relationship of the Nernst's or Goldman's equation type.I. P. Pavlov Institute of Physiology, Academy of Sciences of the USSR, Leningrad. I. M. Sechenov, Institute of Evolutionary Physiology and Biochemistry, Academy of Sciences of the USSR, Leningrad. Pacific Institute of Oceanology, Far Eastern Scientific Center, Academy of Sciences of the USSR, Vladivostok. Translated from Neirofiziologiya, Vol. 12, No. 1, pp. 67–74, January–February, 1980. 相似文献
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N. P. Vesselkin Yu. V. Natochin 《Journal of Evolutionary Biochemistry and Physiology》2010,46(6):592-603
Evolution of living organisms is closely connected with evolution of structure of the system of regulations and its mechanisms.
The functional ground of regulations is chemical signalization. As early as in unicellular organisms there is a set of signal
mechanisms providing their life activity and orientation in space and time. Subsequent evolution of ways of chemical signalization
followed the way of development of delivery pathways of chemical signal and development of mechanisms of its regulation. The
mechanism of chemical regulation of the signal interaction is discussed by the example of the specialized system of transduction
of signal from neuron to neuron, of effect of hormone on the epithelial cell and modulation of this effect. These mechanisms
are considered as the most important ways of the fine and precise adaptation of chemical signalization underlying functioning
of physiological systems and organs of the living organism 相似文献
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