查询词典 stem

The book provides reviews on many of the areas of stem cell, such as organ repair and regeneration; transcriptional regulation of blood stem cells; stem cells and tissue engineering; human fetal mesenchymal stem cells; gene-modified mesenchymal stem cells as cytoreagents for regenerative therapy ; pharmacological characterization of embryonic stem cell-derived cardiomyoctye cultures; adult stem cells in cardiac cellular transplantation; pancreas and liver regeneration and neogenesis; and stem cells and clinical application so on.

该书提供了干细胞许多领域的评论，例如器官修复和再生；血液干细胞的转录调控；干细胞和组织工程；人类胎儿间质干细胞；基因修饰的间质干细胞作为再生治疗的细胞试剂；胚胎干细胞来源的心脏肌细胞培养物的药理学特征；成熟干细胞在心脏细胞移植中的作用；胰腺和肝脏再生；以及干细胞及期临床应用等。

However, the transformation rate from dominant stem to overtopped stem and from overtopped stem to dominant stem were the lowest. The interconversion of classified stem would increase as the stand density and the rate of L. gmelinii was going up. The altitude that classified stem mainly concentrated was less than 1000m, slope was less than 25°, aspect was south slope, position was at middle and lower, soil depth less than 17cm. The rate of no interconversion was 66.7% among overtopped stem. It should cut the overtopped stem as intermediate cutting.

优势木转被压木和被压木转优势木的转换率最低；随着林分密度和林分中落叶松比例增加，分级木相互转换数也增多；分级木转换现象主要集中在海拔＜1000m、坡度＜25°、坡向为阳坡、坡位为中下、土壤厚度＞17cm的林分中；被压木中，无转换的占66.7%，抚育采伐时应考虑伐除这些被压木。

Because of this situation, we suggested that the construction of human embryonic stem cell research regulations in Taiwan should be of first priority and illegal use of human embryo or unpatentable types of human embryonic stem cell inventions should be regulated by law. Moreover, following the trend of stem cell technology, the regulation of cell therapy, gene therapy and analysis or diagnostic technologies related to stem cells should be amended to support stem cell research and research foundation, research awards or preference of business investment should be established to improve development of stem cell industry in Taiwan.

据此，本研究建议我国应优先建制人类胚胎干细胞研究管制规范，并以法律明订违法使用人类胚胎之情况或不予专利之人类胚胎干细胞发明态样，另一方面配合干细胞技术的应用趋势，对於干细胞相关的细胞疗法、基因疗法以及干细胞特性检测等潜在发展领域进行相关规范之增修，并且针对干细胞产业设立研究基金、拟定奖励研究或优惠投资方案，以达到促进干细胞产业发展之政策目的。

Soil fertility and elucidative density are important factors affecting biological properties of field mint, such as total leaves of main stem, quantity of stem, total leaves of small stem, quantity of efficacious leaves among these properties, total leaves of small stem relieved more influence, and the degree of influence can be impressed by the ration of total leaves of small stem to main stem.

不同施肥水平与种植密度是影响薄荷生物学性状，即单株主茎叶片数、分枝数、分枝叶片数及有效叶片数的重要因素，其中分枝叶片数影响较大，可用单株分枝叶片数与主茎叶片数之间的比值反映出影响程度大小。

Tumorous stem yield was only significantly hereditarily positively correlated with vegetative duration, developmental duration, ratio of stem and leaf, horizontal length and whole plant fresh weight, negatively fur percentage and tumorous stem index. There were close relation and harmonies among the quantities characters that were significantly hereditarily correlated with tumorous stem yield. High yield breeding combining with strong ecological adaptability and good quality should be largely based on later maturity, tumorous stem diameter, whole plant weight and higher ratio of stem and leaf.

瘤茎产量与营养生长期、瘤茎膨大期、瘤茎横径、茎/叶、株鲜重呈极显著遗传正相关，与菜形指数、菜皮百分率呈极显著遗传负相关，与其余性状相关均未达显著水平；与瘤茎产量显著相关的性状间关系密切，有很好的协同性，分析提出茎瘤芥育种选择熟性晚、瘤茎横径大、茎/叶高和植株个体较大的品种，可实现品种产量高、生态适应性强和瘤茎品质较佳等三者的协调统一。

The green stem, big leaf, few branch, mauve flower type and the purple stem, big leaf, few branch, purple flower type were classified into one class. The green stem, small leaf, multibranch, mauve flower type, the green stem, big leaf, multibranch, purple flower type, the green stem, small leaf, multibranch, mauve flower type, and the purple stem, small leaf, multibranch, purple flower type were classified into another class.Conclusion The artificially cultivated S.

其中，绿茎、小叶、少分枝和紫色花类型与普通类型各自聚为一类，绿茎、大叶、少分枝和淡紫色花类型与紫红茎、大叶、少分枝和紫色花类型聚为一类，绿茎、小叶、多分枝和淡紫色花类型，绿茎、大叶、多分枝和紫色花类型，绿茎、小叶、多分枝和淡紫色花类型与紫红茎、小叶、多分枝和紫色花类型聚为一类。

Objective 1.To observe the migration and differentiation of rat bone marrow mesenchymal stem cells in infracted heart tissue.

目的(1)观察骨髓间充质干细胞(Bone marrow mesenchymal stem cells ， BMSCs)在心肌梗死心脏组织中的迁移、分化。

Objective To determine the diversity of lysosome expression in neural stem cells during the neuron-oriented differentiation process.

随着神经干细胞(neural stem cells，NSCs)研究的不断深入，探索神经干细胞增殖、分化机制尤其是其定向分化机制倍受人们关注。

Neural stem cells have a strong self-renew mechanism and it can transform after a little break. Neural stem cells have a long term survival, which mean that it has more probability of wrong copy than mature cells. These cells are formed glioma stem cells in the end. The genes who adjust neural stem cells can express in glioma stem cells, which hold out glioma stem cells from neural stem cells. There is another presume that glioma stem cells come from differentiated cells. Through the gene break of these cells, they can obtain characteristics of stem cells, then form glioma stem cells.

神经干细胞具有很强的自我更新机制，获得较少突变即有可能恶性转化，而且干细胞存活时间较长，这意味着干细胞比成熟细胞发生细胞复制的错误几率更大，因外界环境的刺激而发生突变的机会更多，最终形成脑胶质瘤干细胞，同时调节神经干细胞增殖和自我更新的基因在脑胶质瘤的脑胶质瘤干细胞中也表达，这也是支持神经干细胞是脑胶质瘤干细胞来源的；也有推测认为它可能起源于已分化的细胞，由这些细胞突变发生去分化得来，并通过基因突变而获得了干细胞自我更新的特性，从而形成脑胶质瘤干细胞。

Neural stem cells, defined by Reynols 1992, which were derived from the adult mice corpus striatum firstly, can uninterruptly proliferate and multidifferentiate in vitro and in vivo.

神经干细胞(neural stem cells，NSCs)是干细胞的一种，Reynolds等于1992年首先从成年小鼠脑纹状体分离出能在体外不断分裂增殖、具有多种分化潜能的细胞群，并正式提出了神经干细胞的概念。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失