选择反应

In attempt to obtain a further insight into the contribution of charged residues to other allosteri c properties , in this study we designed and synthesized a site directed mutan t , b82 Lys-Asn , for examing influencs the tetrameric stability and enthalpit ic change in O2 binding of human adult hemoglobin.

本研究焦点放在血红蛋白中央空腔中，带有正电残基的其中一个位置，b82 Lysyl ，来研究其正电离子效应与人类血红蛋白氧合反应热及四合体安定性的相关。针对这个目标，我们利用电脑做胺基酸序列排列比对和分子结构的模拟，选择以Asparaginyl残基取代Lysyl残基。

Therefore, with integrated consideration of the situations mentioned above, if the cathode reaction could be sufficiently utilized, preparation of benzaldehyde and tolualdehyde from toluene and xylene by electrooxidation with Ce /Ce as oxidative media would be more advantageous.

因此，综合考虑上述情况，若能充分利用阴极反应，选择Ce／Ce为氧化媒质，间接电氧化甲苯或二甲苯制备苯甲醛和甲基苯甲醛将更加有利。

I think in some ways when you've got something that's working as well as eBay is and when you're as relatively unpenetrated in the market as eBay is,that the wrong thing to do would be to let an announcement like Amazon take you off strategy.eBay shouldn't try to do things to hurt Amazon in their other businesses or overreact and go out and buy a bunch of stuff that doesn't matter because its hears that Amazon is interested in buying it.

我认为在某种程度上来说，当你获得的某种东西能够像eBay一样操作得如此出色，或者当你像eBay一样在市场当中相对来说不被充分理解，那么让Amazon的一条公告使你放弃战略是个糟糕的选择。eBay不应当试图损害Amazon在其他方面的商务并且过度反应，或者到外面去买一堆并不需要但是仅仅因为听说Amazon感兴趣而购买的东西。

Abstract］ objective to compare with curative effect and adverse reaction on renal anemia of hemodialyses patients with fe3 dextran venously and ferromyn orally.methods 60 hd patients were divided into venous group and oral group randomly and there were 30 patients in each group,100 mg cosmofer were used one hour by vein point of dialyser before hd was completed in hemodialyses patients in venous group 200 mg amber acid subiron was taken by the patients in oral group three times a day and two months in total.recombinant human erythropoietine was used at a dose of 100～150 u/kg?

摘要］ 目的比较静脉注射右旋糖酐氢氧化铁和口服琥珀酸亚铁治疗血液透析患者肾性贫血的疗效和不良反应。方法选择60例hd患者，分为静脉补铁组和口服补铁组，每组30例。静脉补铁组：每次透析结束前1 h注射100 mg右旋糖酐氢氧化铁，从透析器静脉端输入，时间维持1 h；口服补铁组：琥珀酸亚铁200 mg，每日3次，连续口服2个月。两组同时使用基因重组人红细胞生成素100~150 u/kg？

The chlorin e6 7 and chiorin 11 were oxidized further with osmium oxide in the same oxidization condition to yield bateriochlorin 8 and 12, respectively.

卟吩醛2在碱性条件下转化为卟吩e6三甲酯7，2与烷基溴化镁的格氏反应给出脱镁叶绿酸醇9，选择高钌酸四丙基铵和N-甲基吗啉N-氧化物将3-位羟基氧化成羰基，所生成的卟吩二酮10在酸性条件下脱去甲酸甲酯生成焦脱镁叶绿酸衍生物11，用四氧化锇对7和11实施氧化，则分别转化为细菌卟吩衍生物8和12。

Plastiroll's versatility and its quick reaction to changing market needs are important factors when selecting a packaging materials supplier believes Geoff Skelton.

Plastiroll的多功能性和快速反应市场需求的变化是在选择包装材料供应商的重要因素，相信杰夫斯凯尔顿。

In this paper, RAPD, ISSR, and SSR reaction system of the fruit tree were established, and the genetic diversity of 56 genotypes of Japanese plum were analyzed using RAPD, ISSR, and SSR markers. The optimal reaction of RAPD was studied with 5"-GACCGCTTGT-3" primer for cv. Fenghuali.

本文选择了56个中国李品种资源(包括2个欧洲李品种)，从叶片基因组DNA提取方法入手，在建立和优化中国李RAPD、ISSR和SSR反应分析体系的基础上，利用这三种分子标记对中国李品种资源进行聚类分析，旨在促进中国李品种资源分类和遗传育种研究。

Three methodsconventional direct acylation,acylation by phase transfer catalyst(PTC,and ionexchange-acylation were selected for the purpose of acetylating κ-carrageenan with 30kDa molecular weight.

选择常规直接酰化、相转移催化酰化和离子交换-酰化共3种方法对3万中等分子量的κ-卡拉胶进行了乙酰化反应。

Squalene/Arlacel A(4:1)–MDP was used as adjuvant. First injection with 500 ug antigen was given to each animal, and three injection once two weeks with 250 ug antigen were followed. Serum Anti-ZP antibody response was evaluated by ELISA once two weeks. In eighth week after first injection, all female monkeys were encaged wi

在高等灵长类动物免疫研究证明去糖基卵透明带抗原免疫能产生抗生育作用，但不会引起卵巢功能紊乱等不良反应，糖基是导致免疫动物卵巢功能紊乱成分，为选择卵透明带抗原，用重组基因技术发展卵透明带避孕疫苗提供依据。

Objective Analyses the social pressure and discrimination that HIV/AIDS facing and their response,indicate the role of reducing the discrimination for HIV/AIDS prevention and control.Methods Visiting the confirmed HIV/AIDS patients personally and secretly,investigate the discrimination patients and the reason in villages that HIV/AIDS patients inclosing.

目的 通过对HIV/AIDS面临的社会压力、感受到的歧视及其反应的分析，来阐述减少歧视对预防和控制艾滋病的作用方法对已确认的HIV/AIDS患者，在知情、保密的情况下进行人访谈；选择存在HIV/AIDS患者的村庄或附近村庄的居民，调查社区内存在的相关歧视及原因。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。