起源

The response to isoproterenol and electrical stimulation of myocytes both in the coronary sinus and outside the ostium were studied through standard glass microelectrode technology to investigate the mechanism of ectopia arrhythmia nearby coronary sinus musculature.

第三部分以标准玻璃微电极技术记录并分析犬冠状窦肌肉结构及冠状窦口外右房组织的心肌细胞动作电位特点，并研究各自对异丙肾上腺素和电刺激的反应，以探讨冠状窦附近起源的异位心律失常的发生机制。

Neighbor-Joining analyses of teleost hepcidins showed that the eelpout 4cys variant arose independently from the notothenioid version, which lends support to adaptive evolution of reduced cysteine hepcidin variants on cold selection. The NJ tree also showed taxonomic-specific expansions of hepcidin variants, indicating that duplication and diversification of hepcidin genes play important roles in evolutionary response to diverse ecological conditions.

另外我们在另一种生活于南极水域的eelpout中也发现了一种含有4个半胱氨酸残基的hepcidin，而eelpout和南极鱼notothenioid在分类学上分属于不同亚目，是一类相差较远的物种，利用Neighbor-Joining方法建树分析发现eelpout的hepcidin虽然同样仅含有4个半胱氨酸残基，但和notothenioid的4cys_hepcidin有着不同的起源，这也进一步说明了hepcidin中半胱氨酸残基数目的减少确实是对寒冷环境的一种适应性进化。

We then suggest that this mechanism may be responsible for the prompt high energy gammma-rays detected by EGRET.

这个过程能够很好地解释EGRET探测到的一些γ暴高能光子的起源。

We then suggest that this mechanism may be responsible for the prompt high energy gamma-rays detected by EGRET on the Compton observatory.

我们发现这个过程能够很好地解释Compton卫星上EGRET探测器探测到的一些γ暴高能光子的起源问题。

The second chapter carries out an analysis of the historical origin of the Electoral College System, followed by its historical development.

第二章分析美国选举人团制度的历史起源，并随着历史的发展，分析选举人团制度经历的演进过程。

In this paper,theoretical analyses about the origin of mass and matter wave are made by researching on the quantum dynamics of an elementary particle,and the internal connections between the relativity and matter wave are revealed also.

通过对基本粒子量子动力学的研究，对物质波和质量的起源等问题作了相应的理论分析，同时进一步揭示了相对论和物质波之间的内在联系。

The computer algebra and Wu-Ritt elimination method are employed as the tools to deal with this problem.

第一章简单介绍了本文所涉及到的学科的起源和发展过程，以及国内外学者在这些方面所做的工作和已经取得的一些成果。

With the birth and development of western lawyer's system, which highly paid attention to the lawyer's function in promoting the elisor and even domestic politics.

从西方律师制度的起源发展，突出律师职业在促进司法乃至民主政治方面的作用，中国律师制度短暂发展史表明律师制度是伴随着民主与法制的进步而发展起来的。

Graves points out how myths of origin and eventual extinction vary according to the climate and that one finds a warm celestial afterworld in the north or a fresh flowered Elysian Field in Greece.

点出神话的起源和最终灭绝根据不同的气候，一看一温暖天体死后在北方还是新鲜开花天堂场在希腊。

Study of the embryologic origins and development of the nervous system from fertilization to the 8th gestational week of development.

神经胚胎学是一种胚胎学起源的研究和神经系统从受精到怀孕第八周的发展。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。