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In this paper, an approach to two problems in organic chemical teaching was made:(1) Determination of the type and the number of Cis-trans isomers of acyclic alkenes;(2)An easy way to convert a Fischer Projection into a zigzag representation.

对如下两个有机化学教学问题进行了探讨：(1)如何确定链状多烯顺反异构体的数目和类型；(2)单糖的Fischer投影式转变为透视式的简便方法。

Cyclophilin A is a important member of a large family of ubiquitous peptidyl-prolyl cis-trans isomerases...

Cyclopnilin A是生物界普遍存在的肽基脯氨酸顺／反异构酶家族的主要成员，能调节细胞内蛋白质折叠。

Most cis-trans isomers are organic compounds.

大多数的顺－反式同分异构体都是有机化合物。

Cis-trans effect The phenomenon resulting from recombination within a gene, in which a mutation is only expressed in the phenotype if the mutant pseudoalleles are on different homologous chromosomes.

顺反效应：如果在同源染色体上假等位基因是不同的，变异仅仅在表现型中表达的基因内重组现象。

Reorientation for photo induced cis-trans isomerization and high T_gs of PIs matrix.

因此，它们在信息存储和光开关等方面具有尤为重要的应用价值。

Since the starting work that azo molecule has reversible cis-trans structure changing, Study on the polymer possessing azobenzene and polymer is booming increasingly liquid crystal, these days it is an attractive topic of nonlinear optics and its application.

自从发现偶氮分子在光照下能够发生可逆顺反异构这一开创性工作以来，对含偶氮类聚合物及聚合物液晶材料非线性光学等性质的研究日益活跃，是目前国内外非线性光学及其应用研究的一个热门话题。

The photoinduced cis-trans isomerization reaction occurs after photo-irradiation of this compound, and the rate of conversion depends strongly on the polarity of solvents used.

八 研究了C5位联有含氮茋的三芳基-2-吡唑啉化合物(TPP15)的光物理行为，发现：该化合物在不同极性溶剂中的荧光量子产率值呈倒钟形状，这与在不同极性溶剂中邻近效应的大小以及吡唑啉环和含氮芪基团间的电子转移的难易程度有关。

Since the starting work that azo molecule has reversible cis-trans structure changing, Study on the polymer possessing azobenzene and polymer is booming increasingly liquid crystal, these days it is an attractive topic of nonlinear optics and its application.

摘要自从发现偶氮分子在光照下能够发生可逆顺反异构这一开创性工作以来，对含偶氮类聚合物及聚合物液晶材料非线性光学等性质的研究日益活跃，是目前国内外非线性光学及其应用研究的一个热门话题。

The chaperone activity of porcine kidney peptidyl-prolyl cis-trans isomerase was studied. The results showed that inactive or active PPIase was able to improve the refolding yields of creatine kinase , and inhibited aggregation. However, alkylated PPIase was not able to prevent CK aggregation.

研究猪肾脯氨酰顺反异构酶的伴侣功能时发现有活性和无活性PPIase能够提高肌酸激酶再折叠产量，抑制肌酸激酶聚沉，但是烷基化PPIase丧失防止肌酸激酶聚沉的能力。

The chaperone activity of porcine kidney peptidyl-prolyl cis-trans isomerase was studied.

研究猪肾脯氨酰顺反异构酶的伴侣功能时发现有活性和无活性PPIase能够提高肌酸激酶再折叠产量，抑制肌酸激酶聚沉，但是烷基。。。

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。