我们开始于原子。每个原子有一个独特的带正电荷的原子核和一些带负电荷的电子(回忆一下因素周期表)。
We start with atoms — each with a distinctive positively-charged nucleus and a distinctive array of negatively-charged electrons (think periodic table).
在带弱核的神经网络模型中，得到了分岔周期解稳定性准则。
Stability criteria for the bifurcating periodic solutions are derived in the neural network with weak kernel.
目的探讨星形细胞瘤的增殖活性，及星形细胞瘤的DNA倍体特性、细胞周期分布和增殖细胞核抗原标记指数(PCNA -LI)与病理分级的关系。
Objective the proliferative activities of astrocytomas and the relationship among DNA ploidy character, cell cycle distribution, PCNA-LI and pathological grades were investigated.
目的研究丘脑网状核(rt)一氧化氮能神经元对大鼠睡眠-觉醒周期的影响。
Objective To study the effects of nitric oxide (NO) neurons in reticular thalamic nucleus (RT) on sleep-waking cycle in rats.
方法用流式细胞仪检测缺血缺氧后不同时间点星形胶质细胞细胞周期变化，并用荧光免疫细胞化学技术测定胶质细胞纤维酸性蛋白（GFAP）和增殖细胞核抗原（PCNA ）的表达水平。
Methods We measured the astrocyte cell cycles in different time after ischemia and anoxia by flow cytometry and detected the levels of GFAP and PCNA with fluorescence immunocytochemistry.
目的探讨核受体激素nr4a1在人卵巢周期中的表达和定位及其在卵泡发育中的调控机理。
Objective to investigate the expression of nuclear receptor subfamily 4, group a, member 1 (NR4A1) in human follicular cells during the ovarian cycle.
根据地球自由核章动在周日重力潮汐观测中的共振效应确定了自由核章动的复本征周期和品质因子Q值，研究了极移重力效应；
The complex eigen period period and Q value of the FCN are evaluated based on the resonance observed in the diurnal tidal gravity, the gravity change due to the polar motion is also studied.
本文主要对辐射诱发染色体畸变和微核的形成与细胞分裂周期的关系作了综述和分析，并对微核细胞率作为辐射损伤的细胞学指标进行了评价。
This paper reviewed the relationship between chromosomal aberrations at the different stages of mitotic cycle and the mechanism of chromosomal aberrations and micronuclei induced by radiation.
目的观察5羟色胺(5HT)在大鼠腹外侧视前核(V LPO)对睡眠觉醒周期的影响。
Objective to study the effects of serotonin (5 HT) in ventrolateral preoptic nucleus (VLPO) on sleep and waking cycle.
结果显示：涡管流函数是时间的周期函数，并被表征为一系列在涡核内均匀分布螺旋涡丝流函数的叠加。
The result showed that the stream function of vortex tube was expressed as the superposition of the stream functions of vortex filament within the vortex core.
通过分离、纯化细胞核的对照实验证明不同培养条件对烟草细胞悬浮系的生长和周期具有显著影响。
The controlled experiment of isolating and purifying nuclei proves that the culture conditions work on the growth of the tobacco suspension cells obviously.
HR蛋白是细胞核受体辅阻遏物的发现证明HR蛋白是通过在毛发周期中调节基因表达来发挥作用的。
The discovery that the HR protein is a nuclear receptor corepressor indicated that HR function in hair cycling is by regulating gene expression.
原子核性质的周期性开始显示出来了。
另外用流式细胞术的方法测定对细胞增殖核抗原（PCNA）和细胞周期的影响。
The proliferating cell nuclear antigen(PCNA) expression and cell cycle were detected by flow cytometry.
结果发现，主动脉平滑肌细胞可表达细胞周期素d，其免疫反应产物主要位于细胞核内。
Results Rabbit smooth muscle cells could express cyclin d, the reactant of immune reaction was mainly located in nuclei.
真核生物对维持基因组的稳定性及防止非整倍体的产生，有其一套完整的保护机制，即细胞周期调控、检验点调控以及对损伤DNA的修复。
To ensure genome integrity and prevent aneuploidy, eukaryotes have evolved an integrated protective mechanism, including cell cycle control, checkpoint control, and DNA repair.
方法：应用SP免疫组化法，检测P 21, P27等细胞周期依赖性激酶抑制剂和增殖细胞核抗原(pcna)在角膜上皮不同部位的表达情况。
METHODS: the expressions of CKI, P27, P21 and proliferating cell nuclear antigen (PCNA) were tested in different regions of corneal epithelium by SP immunohistochemistry.
产生核能的原因很简单，最稳定的是铁原子核，它就在元素周期表中央，它是一个中型原子核。
Nuclear energy comes for a simple reason. The most stable nucleus is iron, right in the middle of the periodic table.
核仁是每个细胞周期中细胞核分解并重组的一个动态区域，并且其大小与细胞生长率相关。
The nucleolus is a dynamic region of the nucleus that is disassembled and reformed each cell cycle and whose size is correlated with cell growth rate.
方法：应用流式细胞仪（FCM）测定65例小儿AL骨髓单个核细胞DNA含量和细胞周期。
Methods:Mononuclear cellular DNA contents in bone marrow were assessed by flow cytometry (FCM) in 65 patients with childhood AL.
疗程结束后，取大鼠结肠组织，免疫组化方法检测其增殖细胞核抗原(pcna)的表达，流式细胞仪分析其细胞周期的变化。
Proliferating cell nuclear antigen (PCNA) expression of colon tissue was determined by immunohistochemical method, the changes of cell cycle was tested by flow cytometry.
疗程结束后，取大鼠结肠组织，免疫组化方法检测其增殖细胞核抗原(pcna)的表达，流式细胞仪分析其细胞周期的变化。
Proliferating cell nuclear antigen (PCNA) expression of colon tissue was determined by immunohistochemical method, the changes of cell cycle was tested by flow cytometry.
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