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In resent year, several in vitro models for committed differentiation of ES cells have been described which give rise to a variety of cell types, including hematopoietic, neuronal, chondroitic, osteocytic, endothelial, myogenic, cardiac and smoothes muscle cells, but the committed differentiation into epidermal stem cells have not been reported.

ES细胞为研究基因功能、胚胎发生和个体发育，及组织细胞分化机理提供了理想的模型。近年来的研究表明，适当条件下，ES细胞可定向分化为三个胚层的各种类型的细胞，其中包括向神经元、造血细胞、成骨细胞、心肌细胞、血管内皮、软骨细胞、平滑肌特方向的定向分化。

In resent year, several in vitro models for committed differentiation of ES cells have been described which give rise to a variety of cell types, including hematopoietic, neuronal, chondroitic, osteocytic, endothelial, myogenic, cardiac and smoothes muscle cells, but the committed differentiation into epidermal stem cells have not been reported.

但定向分化为表皮干细胞至今未见报道。

Multilayered structure of compositionally modulated alloys, in which there are thin film effect, interface effect, coupling effect and periodicity effect present, may give rise to enhanced or novel layer property.

组分调制合金的多层膜结构中由于存在薄膜效应、界面效应、耦合效应和周期性效应而使特性增强或产生出新颖的特性。

2The static behavior of one prestressed spatial truss string structure is analyzed systematically in this paper. The change of the structural internal forces and displacements with the rise-to-span ratio, sag ratio, prestress and the number of brace struts is studied and the influence of these parameters on the mechanical behavior is discussed compressively in detail.

2对一张弦立体桁架结构的静力性能做了系统分析，研究了结构的内力和位移在矢跨比、垂跨比、预应力和撑杆数不同参数下的变化情况，全面详细的探讨了结构的主要参数对结构静力性能的影响。

A t curr e nt rates, that number could rise to almost five hundred thousand.

根据最近的比率，数字会上升大约50万。

CML is cytogenetically marked by the philadelphia chromosome, which originates from a reciprocal translocation between chromosome 9 and 22 and is molecularly marked a chimeric bcr-abl gene, resulting from juxta-positive of the abl proto-oncogene on chromosome 9 with the bcr gene, which is normally located on chromosome 22. The chimeric bcr-abl gene expression an 8. 5kb hybrid mRNA transcript giving rise to a 210-KD fusion protein (P210〓) with increased tyrosine kinase activity. P210〓 plays a key role in the pathogenesis of CML. The continuous cell line K562 was established from the pleural effusion of a 53-year-old female with CML in terminal blast crisis, and was a human erythroleukemia line, contained Ph chromosome.

绝大多数慢粒患者白血病细胞中具有Ph染色体，是由9号染色体长臂3区4带和22号染色体长臂1区1带相互易位形成，即t（9；22），使位于9q〓的c-abl原癌基因在第二外显子的5'端断裂并易位到22 q〓的M-bcr基因第2或第3外显子的3'端，形成异常的bcr-abl嵌合基因，该基因转导出异常的mRNA，编码并翻译出P210蛋白，该蛋白具有很强的酪氨酸激酶活性，使粒细胞发生恶性增殖。K562细胞属于慢粒急变、红白血病细胞株，具有Ph染色体。

While cytoplastic Ca2+ concentration is usually kept below 0.1-0.2 M, it will rise to function in intracellular signaling after excitation, with Ca2+ passing through Ca2+-permeable ion channels in plasma membrane and Ca2+-release channels in endoplasmic reticulum/sarcoplasmic reticulum (ER/SR. In pancreatic ??

静息状态下胞浆中钙离子水平很低，而细胞受到某些刺激后，钙离子可通过胞膜上的钙通透性通道或胞内钙离子库的钙释放通道提高胞浆中钙离子浓度，进而引起各种生理活动。

It soon gave rise to a series of commentaries, glosses, and works, as the "Decretum" of Gratian had done, only these were more important since they were based on more recent and actual legislation.

但很快又引起了一系列的评论文章，敷衍了事，及工务，为& decretum & gratian做了，只是这些人更重要，因为它们是基於最近和实际立法。

Mouse embryonic stem cells can give rise to ectodermal derivatives in culture and can be further induced into neurons and glia for cell-replacement therapies in the central nervous system and for use in drug discovery.

这些细胞已用于中枢神经系统疾病的细胞替代治疗和治疗药物的研发。

Mouse embryonic stem cells can give rise to ectodermal derivatives in culture and can be further induced into neurons and glia for cell-replacement therapies in the central nervous system and for use in drug discovery.

小鼠胚胎干细胞（embryonic stem cell ， ES cell）体外培养可以分化成为外胚层组织，并进一步分化为神经元和神经胶质细胞。这些细胞已用于中枢神经系统疾病的细胞替代治疗和治疗药物的研发。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。