查询词典 populations

All the ten populations is under the Hardy-Weinberg equilibrium condition in the six loci of CAPN 1 gene.

本实验的6位点上所有的10个群体均处于Hardy-Weinberg平衡状态。

Most real populations are not at their constant equilibrium density for very long, but are dynamic and changing.

大多数实际种群并不是在平衡密度停留很长时间，而是动态的不断的发生变化。

AND CHAOS Most real populations are not at their constant equilibrium density for very long, but are dynamic and changing.

大多数实际种群并不是在平衡密度停留很长时间，而是动态的不断的发生变化。

We hypothesized that Notch signaling might play an important role in specifying endothelial progenitors from the mesoderm, given that this pathway acts as a bipotential cell-fate switch on equipotent progenitor populations in other settings.

由于在其他系统中的研究表明，Notch信号通路在同一潜能的前体细胞走向两种不同命运的过程中发挥着关键的转换作用，我们假定该通路在中胚层特化为内皮前体细胞的过程中也发挥重要功能。

There was no room for the influence of local populations of Homo erectus .

没有当地直立人因素影响的迹象。

Compared with classical cytotoxic T lymphocytes , NK cells are superior in the following aspects: NK cells are among the first cell types to be activated after intracellular pathogen stimuli, the activity of NK cells peaked between 1 to 3 days, retained during the first 7-10 days, and the T cells response emerged only after 7 days when the NK cell responses begin to decline; though comprising of only 10％-15％ of peripheral lymphocytes, NK cells mobilize most of the cell populations in a strong and high level response to different invasions, and act as key factors at early defense before a specific immune response could mount, while only certain clones were involved in T cell response; NK cells kill virus-infected or malignant transformed cells without pre-sensitization and without restriction by major histocompatibility antigen, which is usually a mechanism of immune escape to T cell recognition by virus-infected or tumor cells, thus NK cell in complementary with T cells play crucial roles in tumor and virus eradication.

NK细胞以其强大的细胞毒活性为特征，与细胞毒性T细胞相比，NK细胞具有如下特点：NK细胞虽然只占外周血淋巴细胞的10-15％，但是对刺激性因素产生应答的过程十分迅速，一次可以调动大多数细胞共同参与，而不是几个克隆的活化，免疫应答的强度高；病毒感染或恶性转化细胞的一个主要特征是细胞表达的MHCⅠ类分子下降或消失，并借助这一机制逃避特异性T细胞应答的识别，NK细胞介导的杀伤活性无需抗原刺激，不受MHCⅠ分子表达的限制，从而与T细胞应答互为补充发挥免疫防御的功能；NK细胞的免疫活性可以被多种细胞因子上调，其中IFNα，IL-2，IL-12，IL-15和IL-18具备更强的作用；NK细胞具有强大的细胞因子分泌功能，对于启动T细胞特异性应答必不可少。

In it he pays particular attention to the important point that escape velocity is defined on populations in terms of death rates, and thus that it says nothing about how frail people are.

在文章中，他特别关注很重要的一点：群体逃逸速度按死亡速率界定，这样，人们的虚弱程度没有提及。

Great efforts are yet to be made to improve the life of ethnical populations in remote areas.

偏远山区少数民族人民的生活还有待改善。

However, prospective data regarding its relation to diabetes risk in ethnically diverse populations are limited.

然而，通过该模型得到的不同种族糖尿病患病风险的前瞻性资料还非常有限。

Seed germination characteristics of 7 spatially isolated populations of the endangered plant Euonymus chloranthoides were studied in the laboratory condition.

选取重庆特有濒危植物缙云卫矛7个相互间有不同程度空间隔离的种群，对其种子萌发特征进行研究。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。