大核

Est-1 only express in the stage of 8-nucleat embryo sac and metaphase I of meiosis.

Est-1在八核胚囊时期和大孢子母细胞减数分裂I中期表达。

Methods Eukaryotic expression plasmid pCMVCD was constructed , and identified by re2 striction endoenzyme digestion. CD gene was transfected into NSCs from new2born Wistar rats using Lipofec2tamine2000. Positive clones (named NSCs/ CD cells) were screened by G418 presence. 52Fluorocytosine (52FC) ad2ministration of different concentrations were incubated with NSCs/ CD cells. NSCs/ CD cells viability ratios were mea2 sured by MTT assay.

通过构建真核表达质粒pCMVCD ，限制性内切酶消化鉴定后，采用Lipofectamine 2000 脂质体介导法转染新生大鼠室管膜下区神经干细胞(Neural stemcells ， NSCs)，G418 筛选阳性克隆，加入不同浓度的52氟胞嘧啶(52Flourocytosine ， 52FC)，MTT比色法测定NSCs的生存率。

Thermodynamic calculating showed that reduced glutathione adsorbed on core-shell structure SiO_2/γ-Fe_2O_3 magnetic nanocomposites was an endothermic spontaneous、 entropy increasing and endothermal process .

还原型谷胱甘肽在该复合粒子上具有较大的吸附量，是一个多层吸附过程；热力学计算说明还原型谷胱甘肽在核壳结构SiO_(2/γ)-Fe_2O_3磁性纳米复合粒子上的吸附是一个自发的、熵增的、吸热过程。

Objective To study the effect of intestinal trefoil factor on nuclear factor-κB in neonatal rats intestinal tissues with necrotizing enterocolitis, and to discuss whether ITF had protective function in NEC, and its role in the mechanism of NEC.

目的 研究肠三叶因子对坏死性小肠结肠炎新生大鼠肠黏膜组织核因子－κB表达的影响，探讨ITF是否对NEC具有保护作用及其在NEC发病机制中的作用。

Fusing large single core fibers is quite reliable but the double core laser is more delicate and each coupler onto this fiber is a potential weak spot that could fail in use.

熔融大的单个核的纤维

Ambs S,Dennis S,Fairman J,Stillman IE,Lombardo M.Inhi-bition of tumor growth correlates with the expression level of a human angiostatin transgene in transfected B16F10melanoma cells ［J］.

本实验将大鼠血清白蛋白分泌信号正确连接在endostatin基因的碳末端，成功构建了真核表达载体pcDNA3-SE，并利用Lipofectamine介导转染C6胶质瘤细胞。

At the early iteratives, the mutation rate is bigger and the aim is to make particles to explore smaller and isolate region and to avoid the algorithm trapping to the local optimum. While the algorithm runs, the mutation rate will be decreased to reduce the disturbing to the particles. IPSO adopts a new method that congregates some neighboring individuals to form multiple sub-populations in order to lead particles to explore new search space. Additionally, our algorithm incorporates a mechanism with a simple and easy penalty function based on the largest distance between the particle and the boundary of the feasible region to handle constraint.

IPSO采用了一种新型的变异策略，变异概率随着算法的运行是动态变化的：在算法运行初期，变异概率大，其目的是使算法不但能够探测到目标空间中的孤立区域，而且避免搜索陷入局部极值；在算法运行后期，变异概率逐渐变小，以减少对粒子的扰动；算法通过将部分具有邻近距离的粒子聚集成核形成多子群引导种群中粒子的飞行；采用一个简单的基于粒子与可行域边界最远距离的罚函数处理约束的机制，使得算法高效实现。

In our experiments, when the opacity of lens exceed Ⅳ degrees, the treatment effect of medicine was not obviously. Analyzing the examined results of AR, SOD and GSH-px in rat lens cortex and nuclear shows that Zhangming drops can inhibit the activity of AR obviously and prevent the translation of galactose to galactose alcohol. So it can prevent the deposit of galactose in the fibrocyte of lens and the increase of lens's osmosis, then prevent the hydration of lens.

通过对大鼠半乳糖性白内障晶体皮质和核内醛糖还原酶、超氧化物歧化酶和谷胱苷肽过氧化物酶的检测结果分析表明，障明滴眼液能明显抑制AR的活性，防止半乳糖向半乳糖醇的转化，从而防止半乳糖在晶体纤维细胞内的堆积，阻止其渗透性的增高，防止晶体的水化。

The flagella and cilia of eukaryote cells have a quite different structure and are called UNDULPODIA.

真核细胞的鞭毛和纤毛在结构上尽管有相当大的差异，但都称为波动足 UNDULIPODIA 。

Many more believe that China, which has the greatest leverage over the Kim Jong-il regime, has to play a leading role in the implementation of the Security Council resolution and force North Korea to abandon its nuclear delusions.

更多人认为，中国对金正日政权可以施加最大的影响，应该在执行安理会决议时发挥主导作用，并迫使朝鲜放弃其核幻想。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。