小核

In eukaryotic cells, the fundamental unit of chromatin is nucleosome, which is composed of a histone octamer with two copies of H2A, H2B, H3 and H4 and 146 base pairs of DNA.

真核细胞中，核小体是染色质的基本单位，它由两个拷贝H2A、H2B、H3和H4所组成的核心组蛋白八聚体，及缠绕于其上的146bp DNA构成。

To explain relationship between the effect of CLD on senile Demention and neuron in hippocampal area. The change of natural aging mice's neuron in hippocampal area were studied by applying microscope and transilluminating electric microscope. Results: Comparing with the young control, the old control mice's hippocampus had less small pyramid cells, the nerve cells denaturalizing and their branches reducing in the microscope. Hippocampal nerve cells were degenemiceing, with nucleus membrance crinkling like wave shape were not clear, and chromatin condensing with high electron density, heterochromatin accruing, part cell organs inclosing nucleus, nucleus condensing in the EM.

为了阐明菖龙丹抗老年性痴呆作用与海马区神经元结构的关系，运用光镜和透射电镜观察了菖龙丹对自然衰老小鼠海马区形态的影响，结果显示老年对照组小鼠光镜下海马锥体细胞较青年对照组数量减少，细胞体积变小，神经元变性，分枝减少；电镜下海马神经细胞发生退化改变，核膜皱缩，呈波浪状，膜结构不清晰，核染色质浓缩，电子密度高，异染色质较多，部分胞浆细胞器向细胞核聚集，有的可见细胞核固缩。

The main cause for reoperation is that the nucleus puplosus is not completely enucleated during the prior operations.

再手术的主要原因是初次手术摘除髓核不彻底等因素造成，预防措施为采用对脊柱稳定性破坏小的术式，手术时尽量将髓核取尽。

Estrogen levels are high, there are more smear Diversification cells, nuclear deep into dense; Low levels of estrogen, Smear a small round or oval, blue-stained nuclear osteoporosis bottom of the cell.

雌激素水平高时，涂片中有较多角化细胞，核致密深染；雌激素水平低时，涂片中出现小而圆或卵圆形，核疏松蓝染的底层细胞。

All experiment animals lived well with no death or malignant arrhythmia following cell transplantation. Frozen sections of the heart showed a few blue-stained cells under the fluoroscope in the cell transplantation group 4 weeks later. This indicated that stem cells were successfully homing. Using hematoxylin-eosin staining, homing cells were distributed over the infarct zone, with the presence of single or mass. In the model control group, no blue-stained cells were determined.

细胞移植后两组大鼠均存活良好，未出现死亡及恶性心律失常，4周后细胞移植组心脏冰冻切片荧光镜检显示心肌内有少量胞核蓝染的细胞，提示干细胞成功归巢，结合苏木精-伊红染色，归巢细胞位于心肌梗死灶周边区域，呈单个或小团聚集；而模型对照组心肌切片未见胞核蓝染的细胞。

Experimental results show that there are existing some indifferent mechanisms to the pollen sterilization of the Ms types: during the period of single nucleic to three nucleic pollen cell,we observed that the cell of xylem and phloem in anther septum abnormally developed,also the cell in the sheath of vascular bundle,smaller and arranged irregularly; the metabolic block developed too,es...

结果表明，不育类型的花粉败育有着一些共同的机理：在花粉单核期至三核期可见到花药隔维管束的木质部及韧皮部细胞发育较差，维管束鞘细胞发育不良，体积较小，排列紊乱；在单核花粉期至三核花粉期均发生物质代谢障碍，特别在花药部位尤为明显；由于维管束发育不良和花药物质代谢障碍，导致了花粉缺乏营养而败育。

Biochemical indicator such as TG and SF were unregulated while 1 system or 2 system reduced in peripheral blood; Bone marrow hyperplasia showed active or active obviously. Complete morphological nucleated cells mature erythrocytes or platelet hemophagocytic cells were found in 100% marrow slides. Marrow hemophagocytic cells were quantified as 0.5 to 11 per micro liter Median 4.2 per micro liter. Phagocytes showed smaller size single nucleus on one side. Submitting as rings cell plasm showed gray or salmon pink and cell showed disorder fringes.

结果： 符合HPS者30例诊断为HPS早期21例；HPS早期有持续高热峰值≥38.5 ℃、发热期≥4天发病与感染相关；以病毒感染最多见，生化指标TG增高、SF增高；外周血细胞一系或二系减低；骨髓增生活跃或明显活跃，骨髓片（100%）找到吞噬了完整形态的有顾细胞、成熟红细胞或血小板的噬血细胞骨髓噬血细胞0.5-11个/ul中位数4.2个/ul吞噬细胞体积偏小多为单个核核偏一侧，可呈印戒样，胞浆灰兰或淡红色，细胞边缘不整齐。

But their internodes of fruiting branches were short, and having double flower buds mainly born on middle and long fruiting branches, just like Southern melting peach cultivars.

果实卵圆形、果顶圆凸、单果质量较小、果肉离核、果面有较多茸毛，具有地方品种的一些典型原始性状，同时又具有红肉、离核、耐贮运等优良性状。

The general features of nucleosome structure appear to be similar in all eukaryotes.

核小体结构的一般特性似乎在所有的真核生物中都很相似。

The simulation for the multi-component linear frequency-modulated signals demonstrates the improvement of classification performance compared with time-frequency analysis only.

以分类误差最小为目标，自适应调整支撑矢量核和时频表示核的参数，并对SAR运动目标回波模型——线性调频信号进行仿真实验，实验结果表明这一方法提高了分类精度，改善了分类性能。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。