查询词典 embryonic cell

Except for religious fanatics and those ignorant of the process of embryonic development, nobody would believe that an undivided, feelingless glob of a cell is a person.

除了狂热的宗教人士和对人的胚胎发育过程一无所知的人，没有谁会认为那样的一团没分化、没感觉的细胞是一个人。

We deduce frondose algorithm of three layers BP neuralnetworks which is used in common, and discuss several important issues in designing neural networks which is used to forecast, for example, number of hidden layer, nerve cell number of hidden layer, epoch of learning, embryonic power value, decision of node number about input and outputo At the same time, this dissertation sums up things that conventional BP algorithm is improved on considering disadvantages of it.

推导了常用的三层BP神经网络具体算法，讨论了实际预测应用中神经网络设计方面的几个重要问题，如隐层数、隐层神经元数、训练次数、初始权值、输入节点数以及输出节点数的确定。同时，针对传统BP算法存在的各种各样的缺点，文中综述了对其改进的情况。

The shortage of this way was that feeder cells could be passaged together with hESCConclusion HAFi could replace MEF as feeder layer to support the long-term culture oftwo Chinese human embryonic stem cell lines. This could remove the cells of animal originand heterogenetic pollution in the culture system. It also reduced the culture of primarycells and solved the instability caused by different batches of primary cells.

结论HAFi细胞可以用做两株中国人胚胎干细胞培养的饲养层，取代MEF后解决了动物源性细胞混杂和异源污染问题，省却了饲养层原代细胞的培养步骤同时解决了由不同批次饲养层差异带来的培养体系的不稳定。

The use of retrovirus-mediated insertional mutagenesis in zebrafish has led to the mutation and rapid identification of hundreds of genes required for embryonic development and cell growth.

运用反转录病毒介导的插入突变技术，在脊椎动物斑马鱼中已经获得了许多影响胚胎发育和细胞生长过程的突变体，并找到了对应的基因。

Following PAS staining, glycogen in hepatoma carcinoma cells mainly expressed near to unilateral cytoplasm surrounding nuclei, showing strong positive expression in the positive control group. Big karyoplasmic ratio and weak expression of glycogen in cytoplasm were visible in the embryonic hepatic progenitor cell group.

PAS染色后阳性对照组肝癌细胞的糖原主要表达在靠近一侧的核周边胞质内，呈强阳性；而胚胎肝前体细胞诱导组，核浆比例大，部分细胞胞质内可见较弱的糖原表达，充满胞质。

Competence A characteristic of embryonic cells and meristematic cells whereby they have the potential to differentiate into any of several different types of cell.

感受态：胚胎细胞和分生组织细胞具有的一种生理状态，它们可以具有分化为各种类型细胞的能力。

Nucleostemin is a recently discoered nucleolar protein predominantly associated with proliferating rat neural and embryonic stem cells, and some human cancer cell lines.

Nucleostemin是一种最近发现的核蛋白，其主要与大鼠神经源性及胚胎干细胞以及一些人类癌细胞系的增殖有关。

These findings are consistent with the previous knowledge that IGF-2 is mainly expressed during the embryonic phase, IGF-1 is mainly expressed during the postnatal period, which could promote cell proliferation and ontogenesis.

这与IGF-2主要在胚胎期发挥作用，而IGF-1则主要在动物个体出生后才发挥促进细胞增殖和个体发育功能的特点相符。

The results showed that the non-embryonic callus were cultured on the MS medium contained 4.0 mg · L-1 2,4-D and 0.5 mg · L-1 6-BA, embryogenic cells appeared in it. Then the single embryogenic cells formed a proembryo composed of many cells through cell division.

结果表明，非胚性愈伤组织转入到MS + 4.0 mg · L-1 2，4-D + 0.5 mg · L-1 6-BA培养基培养后，愈伤组织中先出现一些胚性细胞；然后单个胚性细胞分裂形成一个由多细胞组成的原胚。

The retinoid plays a critical role in vision, growth, reproduction, cell differentiation, and embryonic development.

类维生素A在动物的视觉、生长、繁殖、细胞的分化及胚胎发育等方面起重要的作用。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。