查询词典 stem from

Then we hypothesize that mesenchyma stem cells from DAC are heterology,which have the potential ability to regenerate root/periodontal complex structures as a new kind of seed cells. Therefore, this study focuses on characteristics of the mesenchyma stem cells at tooth root developing stage and the evaluation of the possibility of being seeds cells.

因此，本研究拟对牙根发育期相关间充质干细胞的生物学特性进行研究，探讨其作为种子细胞在牙根/牙周组织工程中应用的可行性，以期为组织工程化牙根/牙周组织构建优选新的种子细胞。

Gel-blot analysis of RNA isolated from cucumber leaf, root, stem and flower showed that the abundance of CuATP mRNA was low or no in root, moderate in stem and flower, and higher in leaves.

CuADC的表达分析表明CuADC在黄瓜中以单拷贝形式存在，在花和根中的表达量较大，茎叶中较少，不同品种间也存在差异，对胁迫的响应各不相同，"花打顶"后其表达量增加。

There are two disputing theories about the origin of cancer, that is, cancer arises from dedifferentiation of somatic cells or maturation of stem cells. Recent discoveries demonstrate that cancer cell proliferation is driven by cancer stem cells.

肿瘤的起源，即肿瘤的去分化起源和肿瘤的干细胞起源一直是有争议的，而随着干细胞研究的深入，越来越多的实验结果证实肿瘤起源于干细胞的观点。

According to lift method and Hooke's law and applying differential and integral calculus theory, calculated equation for free point of these string is reduced respectively,and considering influence of collar and adding power from stem to it, corrected coefficient to drill stem is determined.

对在井中被卡的单一管柱和组合管柱分别进行了受力分析；采用提升法，依据虎克定律，应用微积分理论，分别推导出了单一管柱和组合管柱的卡点计算公式；并且考虑了管柱接箍、管柱加厚对其影响，确定了管柱修正系数。

According to the editorialist, the idea for studies such as this one exploring the possibility that tumor growth is driven by pluripotent cells considered cancer stem cells comes from work in the hematologic cancers, where stem-cell research is well established.

根据编辑评论，本研究的想法之一为肿瘤生长的可能性是受多潜能干细胞驱动，认为癌症干细胞是来自血液方面癌症，这方面的干细胞研究已经有一定成果；Massague医师指出，在肿瘤出现这一类的干细胞是十分有趣的，特别是这些肿瘤存在少数结果却是最阻抗治疗的。

Most researchers reported that neuroendocrine cell's were the results of stem cell's multi-directional differentiation, like epithelial cell, which is originated from endoderm multipotential stem cells.

多数研究认为，神经内分泌（neuroendocrine，NE）细胞和上皮细胞均来自内胚层多潜能干细胞，是肿瘤发生过程中干细胞多向分化的结果。

Thus a stem with two flags, so called from their appearance, indicates a 16th note or semiquaver, a note of half the duration of a stem with one flag, an 8th note or quaver, and so on.

带两个符尾的符干，以其外形得名，表示一个16分音符，带一个符尾的符干，表示一个8分音符，以此类推。

BACKGROUND: Bone marrow mesenchymal stem cells of mice are different from human and rats. The difficulties of culture, sustaining impermanency activity of BMSCs after passage and short-term effect of stem cells tracking limited the study of mice.

背景：小鼠骨髓间充质干细胞培养不同于人及大鼠，培养扩展难度高，传代后干细胞活性保持时间短；又鉴于干细胞本身特点，使现有干细胞示踪方法作用时间短，这些因素均影响小鼠骨髓间充质干细胞的实验研究。

Supported by: the Youth Foundation of National Natural Science Foundation of China, No. BACKGROUND: Bone marrow mesenchymal stem cells of mice are different from human and rats. The difficulties of culture, sustaining impermanency activity of BMSCs after passage and short-term effect of stem cells tracking limited the study of mice.

摘要背景：小鼠骨髓间充质干细胞培养不同于人及大鼠，培养扩展难度高，传代后干细胞活性保持时间短；又鉴于干细胞本身特点，使现有干细胞示踪方法作用时间短，这些因素均影响小鼠骨髓间充质干细胞的实验研究。

Mesenchymal stem cell, originating from mesoblast, resides mainly in post-natal bone marrow as well as human umbilical cord blood, and coexists with hematopoietic stem cell.

间充质干细胞起源于中胚层，主要位于成体骨髓和人胎儿脐血，与造血干细胞共存。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。