查询词典 populations

The smallest taxonomic subdivision of an ecospecies, consisting of populations adapted to a particular set of environmental conditions.

生态型生态种的最小划分单位，由适应某一特定环境条件的群体组成。

The populations are infertile with other ecotypes of the same ecospecies.

这些群体与其他同种异型的物种不能杂交。

And Scandinavia's egalitarianism might work less well in places with more diverse populations and less competent teachers.

这样，斯堪的纳维亚的"人人平等主义"在面对越来越多不同种族的人群和老师越来越弱的竞争力时，也许不会那么奏效了。

But the report lists one hundred eight-four species that are considered in danger because of limited habitat, serious threats or falling populations.

报告还列出了184种鸟种是因栖息地有限、遭受严重威胁和数量下降等原因而陷入困境的。

To contrast salt tolerance of 8 different native populations of emmer wheat from Israel, there was a drastical diversity.

野生二粒小麦耐盐鉴定的结果表明：供试野生二粒小麦的耐盐性总体上不如普通小麦。

Rainforest in the proportion of endemic species is very high, accounting for all populations of 80 to 90 percent.

雨林中当地特有物种的比例非常之高，占所有种群的80%至90%。

Both the potential of cholera to spread to new areas where there are susceptible populations causing large epidemics , as well as the need to control cholera in new areas of endemicity, such as parts of Africa and the Americas.

霍乱传播到存在易感人群的新地区而引起爆发流行的可能性和存在地方流行性的新地区如非洲、美洲的部分地区控制霍乱的需要。

It may be noted, however, that endogamy appears in populations formed by the fusion of many tribes, as the almost uniform characteristic of the dominant race.

无论如何可以看到，内婚制出现在由许多部落融合形成的人口中，几乎是统治种族的一致特征。

Small intestinal biopsies showed subepithelial collagen deposition with varying degrees of villous atrophy and varying numbers of intraepithelial lymphocytes. Four patients had previous biopsies showing enteropathic changes without collagen deposition. Seven cases were associated with collagenous colitis and 1 also had features of lymphocytic colitis. Three patients also had collagen deposition in gastric biopsies. One case was associated with lymphocytic gastritis. Celiac disease (CD, gluten-sensitive enteropathy) was documented in 4 patients. Five patients made a clinical improvement with combinations of a gluten-free diet and immunosuppressive therapy. Two patients died of complications of malnutrition and 1 of another illness. Clonal T-cell populations were identified in 5 of 6 cases tested. Four of these patients improved clinically after treatment but 1 has died. Collagenous sprue evolved on a background of CD in 4 cases. There was no history of CD in others and these cases may be the result of a biologic insult other than gluten sensitivity.

小肠活检表现为上皮下胶原沉积，绒毛萎缩程度不一，上皮内淋巴细胞浸润数量不等。4例患者以往曾做过活检，表现为其他肠病改变，并没有胶原沉积。7例患者合并胶原性结肠炎，且1例还有淋巴细胞性结肠炎的特征。3例患者胃活检也发现有胶原沉积。1例患者合并淋巴细胞性胃炎。4例患者有乳糜泻（CD，谷蛋白敏感性肠病）病史。5例患者经无麸质饮食和免疫抑制治疗后，临床症状有所改善。2例患者因营养不良合并另一种疾病而死亡。6例患者做了T细胞受体基因重排，其中5例发现有克隆性T细胞群，这5例中有4例治疗后临床症状加重，且1例死亡。4例患者在CD的基础上病发胶原性口炎性腹泻；其余患者无CD病史，他们的发病也许是生物源性损害，而非谷蛋白敏感。

Recent epidemical study indicates that the incidence of AD in some populations is substantially influenced by the gene polymorphisms of the inflammation mediators.

近来流行病学研究显示炎症介质的基因多态性可以影响阿尔茨海默病在人群中的发病率。

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％。