核仁的

The results of these early research work showed that RNA polymerase Ⅰ transcription was localized in the nucleoli and RNA polymerase Ⅱ and Ⅲ in the nucleoplasm.

当时的研究结果显示：RNA聚合酶Ⅰ的转录发生在核仁内，RNA聚合酶Ⅱ和RNA聚合酶Ⅲ的位于核质中。

In recent years, more and more scientists presumed that RNA polymerase Ⅲ transcription might not occur in the nucleoplasm but in the nucleoli. Nevertheless, the possibility has not been proved directly.

近几年，有许多学者相继提出了RNA聚合酶Ⅲ有可能在核仁区域内发生转录的观点，但是这一观点至今还没有得到直接的实验证据的支持。

The transcription localizations of these polymerases have been studied since early 1960s. The results of these early research works showed that the transcription of RNA polymerase I was localized in the nucleoli while that of RNA polymerase Ⅲ in the nucleoplasm.

自上个世纪六十年代初期，人们相继运用细胞化学染色、电镜放射自显影等进行研究的结果表明：RNA聚合酶Ⅰ的转录发生在核仁中，RNA聚合酶Ⅲ的转录发生在核质中。

The oocytes and early embryos treated by other three methods were out of sharp and the structure of nucleolus、ZP and polar body in different stages were damaged.

其它3种方案处理后卵母细胞的形态变形，各发育时期的核仁、透明带、极体等结构受到不同程度的破坏。

Results: Neonatal rats in hypoxic-ischemicgroup behaved restlessness, cyanosis, deep and rapid breath, astasia, lethargy, irritation and spasm; There were local pyknosis, fragmentation, dissymmetry, blur or disappearance of nucleoli, raritas of ground substance in left cerebral cortex; but there was no statistic significance in chinese traditional medicine group and sham group. The expression of HIF-1α mRNA in brain tissue of experimental group and chinese traditional medicine group were higher than that in sham group, especially chinese traditional medicine group at 3d; HIF-1α positive cells were found in cerebral cortex and hippocampus. There were more HIF-1α positive cells in experimental group and chinese traditional medicine group and mainly in vascular endothelial cells.

结果 缺氧缺血后大鼠相继表现为烦躁不安、全身发给、呼吸加深加快、站立不稳、嗜睡、激惹或间断发作的痉挛和抽搐；HE染色显示实验组大鼠左侧大脑皮层出现局灶性神经元核固缩，核碎裂，核仁偏位，不清或消失，基质疏松；中药组大鼠脑组织结构基本接近假手术组，无明显水肿和坏死表现；实验组和中药组大鼠脑组织HIF-1α mRNA表达较假手术组明显增加，尤其是中药组实验第3日者；免疫组化显示实验组和中药组各时间点大鼠大脑皮层和海马区均可见不同程度的HIF-1α表达，明显高于假手术组，阳性表达主要在血管内皮细胞，海马和皮层的锥体细胞亦有HIF-1α阳性细胞分布。

Senescent cells undergo a number of morphological changes, such as increase in cell size, increase in nuclear and nucleolar size, loss of the ability to utilize all the available growth surface, and appearance of multinucleated cells.

衰老细胞进行了一些形态学改变，如增加细胞大小，增加在核和核仁大小，损失的能力，利用一切可用的增长，从表面上看，和外观的多核细胞。

The results indicated that the typical apoptosis was induced by PRRSV in lungs and uteri. The ultrastructural changes showed different characterizations at different stages of the infection. During the early stage from 8th h to day 3 postinfection,the apoptosis cells shrank,the cytoplasm concentrated,the chromatin condensed,the kernel disaggregated and the endoplasmic reticulum dilated. During the middle stage from day 5 to day 9 postinfection,the apoptosis cells evidently shrank,the cell membranes protu berated,the plastosome manifolded,and apoptosis bodies were found. During the last stage from day 10 upwards postinfection,the apoptosis bodies degenerated and disappeared,and no inflammation occurred. Few apoptosis cells were necrotic.

结果表明，PRRSV可诱导宿主肺和子宫发生典型的细胞凋亡，表现为细胞的超微形态结构随着病毒感染进程出现不同的特征性变化，早期（感染后第8 h至第3 d）凋亡细胞多表现为细胞体积缩小，细胞质密度增强，染色质浓缩，核仁解体，内质网扩张；中期（感染后第5 d至第9 d）凋亡细胞体积显著缩小，细胞膜突起，线粒体增多，有凋亡小体形成；晚期（感染后第10 d以后）凋亡细胞形态多表现为凋亡小体降解和消失，少数凋亡细胞在凋亡晚期表现为坏死细胞。

Immunofluorescence staining and reverse transcription polymerase chain reaction were used to test the expression of syndecan-1 protein and its mRNA in cultured unstimulated RPE cells.

2在正常RPE细胞，可检测到syndecan一1蛋白和mRNA的表达；第四军医大学硕士学位论文未受刺激的RPE细胞胞膜/胞浆、核仁呈现强的黄绿色荧光；随TNF一。

B chromosomes do not pair with A chromosomes,they are inherited in a non-Mendelian way, exhibiting meiotic and mitotic instability andnondisjunction. Bs have little influence with the phenotype. DNA sequence differences in rye genomes (JNK population with similar geneticbackground) with and without B chromosomes were analyzed by random amplifiedpolymorphic DNA.

目前，已在约1300种植物和逾500种动物中发现了B染色体，实际含有B染色体的物种数远远不止这些。B染色体具有许多独特的性质：它独立于A染色体之外，不与任何A染色体配对，为非孟德尔遗传，具有不分离机制，不携带或极少携带核仁组织区，无影响表型的基因。

The cell in acidic situation presented a degenerative chang-ment,such as an increased lipid drop and empty cavity in the cell plasma,a py-knotic nuclei,the dilatation of the endoplasmic reticulum and Golgi saccules,mi-tochondrial swelling the number of ribose decrease,and the ribose dissociated inthe plasma,a lot of swallowing cavity,the fibric material decreased accompany-ing with the acid being stronger.

随培养基pH逐渐下降，上述过程因受酸性阻抑而延缓，细胞增殖速度也受影响，处于酸性环境中的软骨细胞呈退行性变化，表现为细胞浆内脂质颗粒与小泡增多、细胞核皱缩、核仁浓染、内质网线粒体膨胀、核糖体数目减少，且与粗面内质网结合的少，游离在胞浆中的多。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。