Study on synthesis of liquid polysulfide rubber by terminal group conversion reaction 端基转化法合成液态聚硫橡胶研究
Northern blot analysis indicates that the 3 ′ terminal non-viral sequence including the ribozyme had been cleaved by the cis-hairpin ribozyme from the in vitro transcripts soon after the in vitro transcription reaction. Northern杂交结果表明,包括核酶在内的3′末端非病毒序列在体外转录反应开始后就被顺式发夹核酶切除了。
Apoptosis is the terminal phenomenon of gene-induced biological cascade reaction and a morphological term for programmed cell death ( PCD). 程序性细胞死亡(Programmedcelldeath,PCD)是一主动性细胞自杀过程,是细胞内部基因引导的一系列精密生化级联反应的结果。
Palladium-Catalyzed Dimerization Reaction of Terminal Alkynes and Stille Cross-Coupling Reaction of Aryl Halides 钯催化的炔烃二聚反应和芳香卤代烃Stille偶联反应
Results show that the degree of pozzolanic reaction of fly ash is limited. Its terminal pozzolanic reaction ratio is less than 20%. 试验结果表明:粉煤灰的火山灰反应程度极其有限,极限火山灰反应率不大于20%;
Conclusion: The recombinant N terminal protein of SARS virus S1 subunit displays specific reaction with SARS antibody and may provide a good tool for further research of immune response to SARS virus. 结论:获得的重组蛋白与SARS病毒抗体呈现特异性的反应,为进一步研究SARS病毒感染免疫应答机制和制备SARS病毒的重组疫苗奠定基础。
The Synthesis of polyoxyethylene p-t-octyl phenol ether, the terminal control of reaction, the relations among reaction temperature, pressure and time, and the effect of oxygen content on product appearance were related in this paper. 本文叙述了聚氧化乙烯对特辛基酚醚的合成、生产终点控制、反应时间与温度、压力的关系,以及产品外观与氧含量的关系。
The problem of the terminal control of reaction in the preparation of benzaldehyde using benzyl chloride is solved by this method. 该法解决了由氯化苄生产苯甲醛反应的终点控制问题。
Non-specific primer extension was decreased remarkably after introducing a mismatch at the third or fourth 3 ′-terminal base of allele specific primers, and the stringency of PCR reaction was cut down. 两条特异性上游引物3'端第3或第4位碱基引入错配后非特异性延伸显著减少,且对PCR反应条件的严格性要求明显降低。
An improved method for the palladium catalyzed carbonylation of terminal acetylenes using supercritical carbon dioxide as the reaction medium has been developed. 研究了以超临界二氧化碳为反应介质实现改善钯催化炔烃羰基化反应绿色性的方法。
The title photosensitive polyester resin with terminal double bonds has been synthesized through catalytic esterification of carboxyl terminated polyester with epichlorohydrin, which is then terminated of acrylates by phase transfer reaction. 通过对端羧基聚酯与环氧氯丙烷的催化酯化,再经相转移反应在其两端接上丙烯酸酯,合成端双键的光敏聚酯树脂。
Method 3: fluorescent nucleoside analogue was randomly incorporated at the 3 ′ terminal of PCR product by template-independent enzyme-mediated tailing reaction. 方法3:对PCR产物通过非模板依赖性的酶促加尾反应在其3′端随机加入荧光修饰的核苷酸。
The good unsaturated polyster resin on air-drying property is produced by optimally controlling the acid value on terminal point of the fusion reaction and optimally defining the proportion of the acid to the alcohol in process of production. 生产过程中,通过优化控制反应终点酸值,优化设计醇、酸比例,可制得气干性能优良的不饱和聚酯树脂。
Methods: LAM IgG was detected by dot ELISA and ADA was detected by terminal reaction of enzymology in CSF. 方法:CSF标本143份,用斑点酶联免疫试验(dot-ELISA)检测LAM-IgG,用终点反应法检测ADA。
Methods The local microcirculatory disorders in the cochlea basal turn near terminal or in the cupule of cochlea of guinea pigs were induced by photochemical reaction. 方法光化学法在豚鼠耳蜗底回接近末端1/2段或耳蜗区域分别诱导局部微循环障碍;
The terminal allylation reaction was studied which was influenced by reaction time, reaction temperature, category and dosage of allylation reagent and molecular weight of polyether. 其次对双羟基聚醚的端烯丙基化反应进行研究,讨论了反应时间、反应温度、聚醚分子量、烯丙基化试剂的种类和用量对反应的影响。
Structures of all the terminal products and most of reaction intermediates are characterized by 1H NMR, 13C NMR, HRMS. 所有目标产物结构及部分中间体结构经1HNMR,13cNMR,HRMS表征。
Objective Heart transplantation is the unique method to cure terminal stage heart failure. However, the urgent and chronic reject reaction after heart transplantation restrict the method widely used. 目的心脏移植是临床治疗终末期心功能衰竭的唯一有效手段,但术后急、慢性排斥反应严重制约着该技术的广泛推广应用。
In general, benzylic alcohols react with terminal alkenes to afford trisubstituted alkenes, and the reaction with 1,2-disubstituted and trisubstituted alkenes affords indane derivatives. 一般而言,苄型醇和端烯反应生成三取代烯烃;而1,2-二取代、三取代烯烃的反应生成2,3-二氢茚类化合物。
The exon splicing products were cloned into T vectors followed by terminal adding A reaction. 外显子拼接的PCR产物经末端加A反应后,克隆到T载体中并进行测序。