分子性

Firstly, polyacrylamide with 26 million molecular weight was compounded in lab through establishing optimum compounding initiator proportionality of 1:1. 3 and mass concentration of 170 mgL^(-1), temperature of 10 ℃, acrylamide mass percentage of 25%, electrical conductivity of 3.6 μSm^(-1) and pH value of 6.57. The salt-resistance, thermal endurance and shear-resistance of polyacrylamide could be enhanced b introducing sulfonic acid group or styrene sulfonate group or drawing the two groups above at the same time. Secondly, chelator HEDP, bactericide isoquinoline ketone and oxygen scavenger thiourea were optimized to improve the compatibility of polyacrylamide and formation water.

在由室内试验确定了复合引发剂最佳比值1：1.3和质量浓度170 mgL^(-1)、合成最佳温度10℃、丙烯酰胺单体质量分数25%、电导率3.6μSm^(-1)和pH值6.57后，合成出相对分子质量高于2.6×10^7的聚丙烯酰胺，同时通过丙烯酰胺单体复配引入磺酸基团、苯乙烯磺酸基团或同时引入此两种基团，提高了聚合物的抗盐、抗温、抗剪切性能；后针对聚丙烯酰胺与地层水配伍性差的问题，优选出HEDP螯合剂、异噻唑烷酮杀菌剂和除氧剂硫脲，对聚合物稳定效果明显。

Failure of B cells to undergo immunoglobulin isotype switch in this case is a result of mutation on the CD40L gene in the activated T cells and B cells may have the ability to secrete IgG. This is the first case of HIGM with X-linked inheritance diagnosed at a molecular level in China.

患儿B细胞可能具有正常Ig分泌功能，Ig同种型转换障碍是由于其T细胞CD40L基因缺失，并在国内首次从分子水平上确诊一例性联高IgM综合征患儿。

AIM: To investigate the expression of junctional adhesion molecule-C in the pancreas, kidney and lung of mice with acute necrotizing pancreatitis.

目的： 研究连接黏附分子C在小鼠急性坏死性胰腺炎模型胰腺、肾脏和肺脏组织中的表达。

Chiral centers of C5 and C8 are directly constructed in the key step of the diastereoselective propargylation from D--tartrate. The methylation and subsequent methoxycarbonylation result in desymmetrization of the terminal dialkynes. The α,β-unsaturated δ-lactone is synthesized after partial hydrogenation and lactonization.

由非天然酒石酸出发，利用双向非对映选择性的炔丙基化反应，在一步反应中同时构建C5和C8手性中心；然后通过末端炔基的甲基化、甲酯基化，延长碳链并对分子去对称化；内酯化得到关键中间体α，β-不饱和六元内酯，再经多步反应转化得到8-epi--Boronolide。

In this thesis,which is based on theory of supramolecular self-assembling,a series of ladderlike polyorganosiloxane was synthesized successfully with the help of H-bonding and charge transfer self-assembling template.

本论文以氢键和电荷转移相互作用为模板，利用超分子自组装的理论，合成了一系列高规整性的梯形聚硅氧烷。

The dynamics simulation of modified enzyme was carried out in the presence of solvent. The realtionship between structure and activity was analyzed. It was considered the entropy effect which was brought by the side chain of lauric acid patched to the enzme had the main role of increasing the stability of modified enzyme.

并在溶剂存在的条件下对修饰酶进行了分子动力学模拟和构象分析，讨论了其结构与性能的关系，认为月桂酸修饰链无序性带来的效应是提高修饰酶稳定性的主要原因。

Restriction sites polymorphisms of rRNA gene for Leptospira can be used to classify and identify Leptospira in China and also to study on molecular epidemiology for leptospirosis.

rRNA基因限制性内切酶酶切位点多态性可用于钩体分类，而且是钩体病分子流行病学调查的一种好方法。

In some circumstances the red phase transition accompanies strong fluorescence. The unique chromatic properties of molecular recognition made PDA vesicles a promising biosensor and many biological species, such as virus, bacteria, lipolytic enzyme, antimicrobial peptide,mammalian peptide, ions, antibody-antigen and oligonucleotide etc.

这种囊泡将检测与显示集为一体，是一种典型的生物分子器件，近年来已被用于很多物质的测定，其中包括病毒、细菌、亲脂性酶、抗菌肽类、哺乳动物肽类、离子、抗体、蛋白质和寡核苷酸等。

These results demonstrated that BmCPV,DsCPV and LdCPV were homologous as classfied in the same electropheres type I,and that this RT\|PCR assay could be used for early,rapid,sensitive and specific detection of DsPCV infection in the natural population of the pine moth,due to the apparent different feeding habits of Bombyx mori,Dendrolimus ssp.and Lymantria dispar larva each other and the no infection of BmCPV and LdCPV to Dendrolimus ssp.

由于松毛虫与家蚕、舞毒蛾相互之间食性不同，而且BmCPV和LdCPV对松毛虫无感染性，即在松毛虫体内不会有BmCPV病毒和LdCPV病毒的感染，因此该结果一方面从分子水平上证实了DsCPV与BmCPV、LdCPV存在基因同源性，同时也表明了依据BmCPV的基因序列设计引物对DsCPV基因组核酸建立的RT-PCR扩增体系，可以作为松毛虫种群中DsCPV的一种敏感、特异、早期、快速的检测手段。

The molecular mechanism of autocrine regulation of vascular endothelial growth factor in chronic lymphocytic leukemia B cells is unknown.

血管内皮生长因子在慢性淋巴细胞性白血病 B细胞中自分泌调节的分子机制尚不清楚。

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。