分子性

Though enantioslectivity in the epoxidation of some substrates with soluble polymer-supported tartrates is a little lower than that with solution-phase tartrates, it is higher than enantioslectivity with insoluble polystyrene resin-supported tartrates, linear poly s and corrosslinked poly s. It is obvious that soluble polymer-supported tartrates have good catalytic activity and enantioselectivity.

尽管可溶性聚合物支载的酒石酸酯在某些底物环氧化中的对映选择性比小分子酒石酸酯低一些，但明显优于文献报道的不溶性聚苯乙烯树脂支载的酒石酸酯、线形聚酒石酸酯和交联聚酒石酸酯配体，显示了良好的催化活性和对映选择性。

Methods: Using GV1 and GV2 targetable non-viral vectors, the influences of the poly-L-lysine and protamine on in vitro gene transfer efficiency and the course of gene expression were observed. Results:β-galactosidase was expressed at intermediate level (50%) in A375 cells using a complex containing either protamine or poly-L-lysine.

目前，大部分受体介导的靶向性非病毒载体都利用多聚赖氨酸作为骨架分子来包裹DNA形成复合体，并在实验室研究中取得了较好结果，但由于多聚赖氨酸的临床安全性未知，难以应用于临床研究。

The three isolates have four specific replacements in 87 , 88 , 95 , and 119 in S1 hypervariable region, and a unique cleavage site R-X-R-T-G-R in 3' terminal region. These data may be valuable for investigation of molecular basis of the serotyping, tissue tropism and pathogenicity of these virus isolates.

本文的3个分离毒株Q1、J2和T3在S1高变区的87，88，95和119有4个特有的替换，在3'末端有独特的裂解位点R-X5-R-T-G-R，这些结果可能对这些分离毒株的血清型特异序列和组织趋向性和致病性的分子决定区方面的研究有重要的价值。

The molecular imprinting chiral stationary phases prepared by bulky polymerization must be ground, sieved and sedimented. The resultant chiral stationary phases were irregular particles and showed lower column efficiency.

本体聚合法制备分子烙印手性固定相需粉碎、筛分和沉降的繁琐步骤，制得的固定相呈无定形颗粒，柱效很低。

Among them multi-types of body colour and special types of hosts are the most universal phenomena. In our experiment, methods of microsatellite primer PCR molecular marker and partial gene sequence analysis of mitochondrial DNA COⅠ-Ⅱwere used to analyze genetic diversity of two body colour bio-types (red bio-type and green bio-type) of green peach aphid from different plants and relationship between green peach aphid and host plants by separately selecting individuals of aphid from rape, Chinese cabbage and tobacco. The main results as follows: 1. Selecting An Ruisheng'method of extracting DNA from small sized insect, using this method can extract DNA well and steadily.

本文采用微卫星引物PCR 分子标记和线粒体COⅠ-Ⅱ部分序列分析的方法，分别选取十字花科植物中的甘蓝和油菜，茄科植物中的烟草，对不同寄主上桃蚜的红色和绿色两种体色生物型的遗传多态性及其与寄主植物的关系进行了研究，取得的主要结果如下： 1、选取安瑞生(2002)小型昆虫DNA 提取方法，能很好且比较稳定的提取桃蚜基因组DNA。

Here we, for the first time, apply the area per molecule of compound measured by Langmuir film technique as a characteristic of its amphiphilic property of compounds with similar structures.

我们这里首次利用两亲化合物Langmuir膜中的单分子面积来判断同系列两亲化合物的两亲性。

Enantiomer or solid-state form ratios (e.g., for racemates, and for defined admixtures of isomers or enantiomers or solid-state forms); solubility profile (aqueous and nonaqueous as applicable); partition coefficients; solution pH; dissociation constant; melting or boiling point; refractive index; specific gravity.

该要求可以通过提供下述信息来满足：名称（通用名、化学名、编码等）、化学摘要服务编码、性状描述（如：外观、颜色、物理状态）、分子式和分子重量、结构式、立体化学（找出手性中心、顺式反式异性等）、对映结构体比率（如：外消旋物、规定的异构体、对映异构物和固态形式的混合物）、溶解度概况、分配系数、溶液pH值、解离常数、熔点或沸点、折射率、比重。

Enantiomer or solid-state form ratios (e.g., for racemates, and for defined admixtures of isomers or enantiomers or solid-state forms); solubility profile (aqueous and nonaqueous as applicable); partition coefficients; solution pH; dissociation constant; melting or boiling point; refractie index; specific graity.

该要求可以通过提供下述信息来满足：名称（通用名、化学名、编码等）、化学摘要服务编码、性状描述（如：外观、颜色、物理状态）、分子式和分子重量、结构式、立体化学（找出手性中心、顺式反式异性等）、对映结构体比率（如：外消旋物、规定的异构体、对映异构物和固态形式的混合物）、溶解度概况、分配系数、溶液pH值、解离常数、熔点或沸点、折射率、比重。

The T〓 progenies of sck gene transgenic cotton were identified by molecular detection and bioassay.

对转修饰cpti基因的抗虫棉T〓代进行了分子检测和抗虫性检测。

The effects of central core in hyperbranched polyesters to solubility and intrinsic viscosity were studied.

研究了中心核分子对HBPE的溶解性、特性私度的影响。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。