查询词典 evolutionary

The phylogenetic tree, based on 16S rDNA sequences, indicated that strains 117 and 43401 formed two distinct phyletic lines within the evolutionary radiation occupied by the genus Nocardia.

20株稀有放线菌的16S rDNA序列分析表明，分离菌株117、43401和12202与其相关种之间具有相对低的序列相似性，被选择以进行进一步的多相分类研究。

To cope with highly nonlinear, nondifferentiable and multi-peak objective function, evolutionary algorithms which have the advantage of global solution searching can overcome the drawbacks of conventional algorithms such as slow speed, relatively poor precision and convergence to local solutions.

针对微波领域中优化问题的目标函数的高度非线性、不可导、多极值等特点，利用演化算法的全局搜索特性，可以避免确定性优化方法收敛速度慢、精度低、易于收敛到局部极小值的缺点。

Over the past two decades, there have been several approximate methods that adopt different mutation models and used for estimating nonsynonymous and synonymous substitution rates based on protein-coding sequences across species or even different evolutionary lineages.

比较基因组分析是研究生物进化关系的基本工具，非同义替换率和同义替换率的计算是研究分子进化动力学的重要内容。在过去的二十多年，基于马尔科夫链的核酸替代模型一直在不断发展。

Over the past two decades, there have been several approximate methods that adopt different mutation models and used for estimating nonsynonymous and synonymous substitution rates based on protein-coding sequences across species or even different evolutionary lineages.

近日，中国科学院北京基因组研究所基因组科学及信息重点实验室通过引入新的参数构造模型，发展了一个新的ka/ks算法，该研究成果在近期出版的 Biology Direct 杂志上发表。比较基因组分析是研究生物进化关系的基本工具，非同义替换率和同义替换率的计算是研究分子进化动力学的重要内容。

Here, similarities between archaebacteria and eukarykaryotic otic cells in many aspacts including DNA duplication, transcription, translation and histones, chromatin, proteasome were introduced. Finally, the evolutionary position of archaebacteria and their significance to onery gin of the eukaryotic cells were discussed.

结合国际上对原细菌，尤其是它与真核细胞在许多方面（包括DNA复制、转录和翻译整个中心法则，组蛋白、染色质及蛋白酶复合体等）密切的亲缘关系的研究结果，对原细菌的进化地位及其对揭示真核细胞的起源进化问题的意义进行了探讨。

The Garzê-Litang fault belt has experienced a series of complex evolutionary processes since the Paleozoic and is a large-scale, structurally complex ophiolitic mélange belt that has been strongly reworked and dismembered by overthrusting and sinistral strike-slip shear during the Cenozoic Himalayan orogeny.

提要： 甘孜—理塘断裂带自古生代以来经历了一系列复杂的演化过程，为一规模宏大、结构复杂并受到新生代喜马拉雅期逆冲推覆和左行平移走滑剪切作用强烈改造肢解的蛇绿混杂岩带。

The dating results provide important data for the evolutionary history of the East Kunlun orogenic belt.

测年结果为研究东昆仑造山带的演化历史提供了重要的年代学资料。

This first comprehensive analysis includes genes and proteins and their relation to human disease, repeated sequences, comparative genome-wide studies of mammalian orthologous chromosomal regions and rearrangement breakpoints, reconstruction of ancestral karyotypes and the events leading to existing species, rates of variation, and lineage-specific and lineage-independent evolutionary events such as expansion of gene families, orthology relations and protein evolution.

这次全面分析包含了三种动物的基因组序列和蛋白产物以及它们与人类疾病相关性分析，重复序列，哺乳动物同源染色体区域和重排断点的比较基因组研究，祖先核型的重建，产生现有种群的事件，变异率以及种系特异和不依赖种系的事件如基因家族扩展，同源关系以及蛋白进化。人类19号染色体序列被破译了。

This first comprehensive analysis includes genes and proteins and their relation to human disease, repeated sequences, comparative genome-wide studies of mammalian orthologous chromosomal regions and rearrangement breakpoints, reconstruction of ancestral karyotypes and the events leading to existing species, rates of variation, and lineage-specific and lineage-independent evolutionary events such as expansion of gene families, orthology relations and protein evolution.

这次全面分析包含了三种动物的基因组序列和蛋白产物以及它们与人类疾病相关性分析，重复序列，哺乳动物同源染色体区域和重排断点的比较基因组研究，祖先核型的重建，产生现有种群的事件，变异率以及种系特异和不依赖种系的事件如基因家族扩展，同源关系以及蛋白进化。生物谷评论：人类19号染色体序列被破译了。

These provided a base for further study on the structure and function of these cDNAs and evolutionary process of Yuanjiang Oryza rifupongon .

本研究为进一步分析这些cDNA片段的结构、功能和探讨元江普通野生稻在栽培稻演化中的地位奠定了基础。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。