合核体

Its zinc complex was applied in asymmetric direct aldol reaction of acetone and p-nitrobenzal...

设计合成了一种NOBIN衍生的手性配体，初步研究了该手性配体的双核锌配合物在对硝基苯甲醛和丙酮的不对称直接醇醛缩合反应中的催化应用，20℃和20mol％催化剂量下，获得了32.5％ee和72％收率的产物。

Results: PC12 cells fragmentation exhibited various evolving phases including totipotential protoplast, endopolyploid,polykaryon, multi-nucleo-endoplast, multinucleocyte, syncytium and multicells. The PCNA-IR was strongly positive in the earlyphase samples of cell fragmentation.

结果：PC12细胞呈现包括全能原生质体、核内多倍体、多核体、核-内质多聚体、合胞体和多细胞裂殖球的一系列演化阶段。

The samples were smeared on slides and stained with Giemsas stain. The stained smears were observed microscopically and photographed. It showed that except typical trophozoites in binary fission. the following trophozoites of abnormal morphs were also observed. for instance abnormal trophozoites with binary fission; enlarged trophozoites with round and irregular shaped eosinophilic bodies in the cell plasma; enlarged cells containing round and irregular shaped eosinophilic bodies and flagella; enlarged cells which contain 6 or 8 nuclear-like bodies and flagella, 3 or 4 embryonic forms of daughter trophozoite in one mother trophozoite; 4 trophozoite embryonic forms with fused plasma 3 trophozoites with fused plasma;4 trophozoites with fused plasma; a pair of trophozoite with binary fission fused with another trophozoite;2 pairs of trophozoite with binary fission fused each other; a trophozoite with 1 nuclear only.

结果 除观察到典型的营二分裂法繁殖的贾第虫滋养体外，还可见到多种形态异常的虫体，包括；虫体呈非典型二分裂；滋养体胀大，胞质中有团块状和不规则形状的嗜酸性物质；在胀大的贾第虫细胞内含有团块状和不规则形状的嗜酸性物质以及鞭毛；在胀大的贾第虫细胞内含有6或8个核状物以及鞭毛；在一个母体细胞中含有3或4个子体细胞的雏形；胞质互相融合的4个滋养体的雏形；胞质互相触合的3个滋养体，胞质互相融合的4个滋养体；1对营二分裂的滋养体与另一个滋养休互相融合；2对营二分裂的滋养体互相融合；仅有1个细胞核的滋养体。

It is the first time that these phenomena were observed: Two nuclei are surrounded by plasma and locate at the central of the female gametophyte and the others nuclei are positioned at the fringe of the female gametophyte; Before the pollen tube enters the female gametophyte. the nuclei in chalazal end begin splitting of plasma and form multinuclear cell.4. The pollens of Gnetumc are spherical or applanate with single aperture. The ornamentation of exine is spine. The basis part of spine is lenience and the top part of spine is tip or obtuse sphere.

首次在买麻藤属植物的雌配子体中观察到2个游离核位于配子体的中央位置，且被一团原生质所包围的，其余的游离核位于边缘的现象以及花粉管进入雌配子体前，合点端的核已经发生胞质分裂形成多核细胞的现象 4、买麻藤的花粉近球形或扁平型，有单萌发孔，外壁表面具小刺状纹饰，小刺基部宽大，末端尖或钝圆。

Methods:The effect of chrysin on HIV1 infection and replication in vitro were detected by cell fusion of MT2 cells and HIV1ⅢB/H9 cells labeled calceinAM and the inhibition study of syncytia formation and p24 production monitored in culture supernatant of MT2 cells infected by HIV1ⅢB, respectively. Flurescence conjugated monoclonal antibodies and flow cytometry were used to detect the expression of CD69 by activated CD4+T in response to PHA.

以CR对CalceinAM标记的慢性感染HIV1ⅢB的H9细胞（H9/HIV1ⅢB）和MT2细胞的融合、对HIV1诱导的MT2细胞形成合胞体及对感染HIV1的MT2细胞产生p24抗原的影响，探讨其抗HIV1活性；以PHA刺激人外周血单个核细胞，利用流式细胞术，检测CD4+T细胞CD69表达的百分率，分析CR对免疫活化的影响。

Four new salicylaldehyde derivatives with a glucose or mannose moiety were synthesized with 2-tert-butylphenol or 4-tert-butylphenol as the starting material, followed by the formylation, chloromethylation, nucleophilic substitution reaction with the desired carbohydrate. The salicylaldehyde derivatives condensed with ethylenediamine to give the Schiff bases, which coordinated with Mn to afford four novel sugar-based Salen Mn complexes.

首先，分别以2-叔丁基苯酚和4-叔丁基苯酚为起始原料，经过甲酰化反应、氯甲基化反应、和糖类衍生物的亲核取代反应制得了四种新型并入葡萄糖基或甘露糖基的水杨醛衍生物，将它们与乙二胺缩合生成希夫碱配体，得到的配体与过渡金属Mn~(3+)配位制备出四种新型含糖基的Salen Mn配合物。

Micrococcal nuclease hypersensitive DNA fragments were either cloned directly, or mapped onto the genome by hybridization with oligo-nucleotide probes on a 244K Agilent array-CGH chip. The array-CGH mapping was confirmed for nuclease sensitivity by PCR after MNase digestion and by Southern blot analysis.

我们利用小球菌核酸酶超敏感的去氧核醣核酸片段直接选殖或是将其作为寡核苷酸探针於安捷伦244k寡核苷酸阵列-比较基因体杂合晶片上，进行基因体定位，并利用聚合酶链索反应和南方墨点法侦测其核酸酶敏感程度，以确认结果之可靠性。

The present invention provides a multinuclear half metallocene compound in which two or more of transition metals of groups 3 to 10 on periodic table are connected through bridge ligand simultaneously containing Pi-ligand cycloalkandienyl group and Alpha-ligand functional group and its preparation, and a process for preparing styrene polymer using the compound as a catalyst.

本发明提供了一种其中的两个或更多元素周期表第3-10族过渡金属通过同时包含π-配体环烷基二烯基团和α-配体功能基团的桥配体连接的多核半金属茂络合化合物及其制备方法，及使用本化合物为催化剂的苯乙烯聚合体的制备工艺。

The formation of the precursor for nucleation and growth of TiO〓 particles is slow from the complex. So the formation of TiO〓 particles is a diffusion-controlled process described as the Lamer model.

虽然水解料液中钛的浓度较高，但是以络合物的形式存在，络合物转变成成核前驱体的反应是缓慢的，使成核和生长过程在扩散控制下按Lamer模型的方式完成。

For the case of pH-induced micellization, as pH of the solutions decreases to below 4.6, micellar structure having insoluble complexes of PAA/PNiPAAm as the core and solvated HEC chains as the shell can be obtained due to hydrogen-bonding complexation between the proton-acceptors in PNiPAAm and the proton-donors in PAA.

首先发现pH诱导胶束形成的临界pH值在4.6附近，证实了胶束化机理是由于低pH下PAA接枝链上的质子给体与PNiPAAm支链上的质子受体间的氢键络合形成胶束的&核&，HEC不参与络合形成胶束的&壳&。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新