一分子的

Results It showed that there was only one 31ku band,which indicated that the fimbriae of actinomyces viscosus 5951 was composed of the same subunits of 31ku molecular weight.

结果 显示分子质量为31ku一条单一的色带，表明粘放菌5951菌毛是由相同的分子质量为31ku的亚基组成。

But in the process of ion exchange, xylose molecular is easily converted into arabinose because of catalytic isomerization, which results in the decrease of its purity and difficulty of crystal.

木糖是一种在化工、食品等领域有着广泛用途的五碳糖，工业生产是用稀强酸将玉米芯中含有的大量多缩戊糖分解为单个的木糖分子，然后通过离子交换除盐、脱色，精制提取，但在强碱离子交换柱中，木糖分子容易被部分催化异构转化为阿拉伯糖，使得木糖纯度下降，结晶困难。

ABSTRACT］ Objective To observe the efficacy and side effects of combined therapy with alltrans retinoic acid, arsenic trioxide (As2O3) and chemotherapeutics for newly diagnosed acute promyelocytic leukemia.

急性早幼粒细胞白血病是急性髓系白血病中的一种独特类型(M3型)，以特异的染色体易位t(15，17)(q22，q21)为特征，形成PMLRARa融合基因，该融合基因是APL发病的分子基础和分子标志。

Molecular medicine will renovate the conventional medical model completely and break new ground of medical research and development.

分子医学技能》便是顺应这一新的形势，而新开设的一门集分子生物学基本技能、科研探索和医学应用于一体的全新的综合性实验课程

Compared with classical cytotoxic T lymphocytes , NK cells are superior in the following aspects: NK cells are among the first cell types to be activated after intracellular pathogen stimuli, the activity of NK cells peaked between 1 to 3 days, retained during the first 7-10 days, and the T cells response emerged only after 7 days when the NK cell responses begin to decline; though comprising of only 10％-15％ of peripheral lymphocytes, NK cells mobilize most of the cell populations in a strong and high level response to different invasions, and act as key factors at early defense before a specific immune response could mount, while only certain clones were involved in T cell response; NK cells kill virus-infected or malignant transformed cells without pre-sensitization and without restriction by major histocompatibility antigen, which is usually a mechanism of immune escape to T cell recognition by virus-infected or tumor cells, thus NK cell in complementary with T cells play crucial roles in tumor and virus eradication.

NK细胞以其强大的细胞毒活性为特征，与细胞毒性T细胞相比，NK细胞具有如下特点：NK细胞虽然只占外周血淋巴细胞的10-15％，但是对刺激性因素产生应答的过程十分迅速，一次可以调动大多数细胞共同参与，而不是几个克隆的活化，免疫应答的强度高；病毒感染或恶性转化细胞的一个主要特征是细胞表达的MHCⅠ类分子下降或消失，并借助这一机制逃避特异性T细胞应答的识别，NK细胞介导的杀伤活性无需抗原刺激，不受MHCⅠ分子表达的限制，从而与T细胞应答互为补充发挥免疫防御的功能；NK细胞的免疫活性可以被多种细胞因子上调，其中IFNα，IL-2，IL-12，IL-15和IL-18具备更强的作用；NK细胞具有强大的细胞因子分泌功能，对于启动T细胞特异性应答必不可少。

The German police planned an armed rescue, But in the confusion of the gun battles, all the hostages, a German policeman and five terrorists were killed. Following the atrocities of 1972, Jordan expelled the Palestinians, Their relocation to Lebanon destabilised a region already in religious turmoil. The Israeli invasion of 1982 attempted to clear Southern Lebanon of the PLO forces. after a 2 month seige of Beirut, the Palestinians left under a multi-national protectorate, As many as 30 thousand people had been killed, the majority civilians. In August, under the authority of Israel, Christian Phalangists raided the Palestinian camps of Sabra and Chatilla, What was meant as a search for remaining terrorists became a massacre, 2000 Palestinians were killed. 20 years after the -Day War, the Palestinians of the Occupied Territories continued to live in poverty. A new generation which had grown up under Israeli rule was inspired by the Iranian Revolution of 1979, Islamic fundamentalism radicalized the youths of Gaza and the West Bank, They began the Intifada.

德国警方立即采取武装营救行动，但在枪林弹雨的混战当中，全部人质、一名德国警员和五名恐怖分子全部丧生。1972年的暴行之后，约旦把巴勒斯坦人驱逐出境，他们在黎巴嫩找到另一个据点，使这原有宗教纷争的地方变得更加鸡犬不宁。1982年以色列入侵意图清除黎巴嫩南部的巴解势力，在占领贝鲁特两个月后，巴勒斯坦人在多国统占的局势下离开，当地大部分居民被杀，为数三万。8月份，在以色列统治下，长枪党党员袭击巴勒斯坦沙伯及查地拉营地，那是一次对恐怖分子余党的大搜查，却变成了大屠杀，200名巴勒斯坦人被杀。6日战争的20年后，被占领的巴勒斯坦人仍生长在贫苦之中，成长在以色列统治的新一代深受1979年伊朗革命的影响，以色列原教旨主义，更激化了加沙和西岸的青年，他们开始了。

In chapter four, the preperation of ytterbium diiodide was examined. The reductive cleavage of Se-Se bond and S-S bond induced by ytterbium diiodide was investigated. The reaction of diselenides and disulfides with allylic bromide promoted by ytterbium diiodide was also examined. The intermolecular Barbier-type reaction induced by ytterbium diiodide was studied. In the last section of this chapter, the intermolecular reductive coupling of nitriles with azides induced by samarium diiodide was investigated.

第四章，研究了二碘化镱的制备方法，以及二碘化镱作为一种优良的单电子转移试剂在有机合成中的应用：二硒醚的Se--Se键和二硫醚S-S键的还原断裂，及其在合成烯丙基硒醚，硒代酯和烯丙基硫醚，硫代酯中的应用，实验结果表明二碘化镱也能促进分子间的Barbier反应，而文献认为二碘化镱不能促进分子间的Barbier反应；最后研究了二碘化钐促进的叠氮化合物与腈的交叉还原偶联反应，一步高收率地制备脒的方法。

And a fluorescence molecule beacon probe is designed between upstream and downstream priers, 5' end of probe can mark fluorescence reporter group FAM, and the 3' end markes fluorescence quenching group DABCYL, and 5' end and 3' end of the probe have 6 bases which can be reflected and complemented to make fluorescence molecule beacon probe do not give out fluorescence signal in free state.

在上下游引物中间设计一条荧光分子信标探针，探针的5'端标记荧光报告基团FAM，3'端标记荧光淬灭基团DABCYL，探针的5'端和3'端有6个碱基能反折互补，使荧光分子信标探针在游离状态下不发出荧光信号。

Many of the plant retrotransposons are transcriptionally activated by various biotic and abiotic stress factors. Retrotransposons are used as molecular markers for their traits. S-SAP, IRAP, REMAP and RBIP are developed and will be applied widely in gene mapping, genetic biodiversity and phylogeny studies, and cultivar certification.

由于反转录转座子的特点，使其作为一种分子标记得以应用。S-SAP、IRAP、REMAP和RBIP等分子标记相继发展起来，在基因作图、生物遗传多样性与系统进化、品种鉴定等方面具有广泛的应用前景。

After monitoring a jihadist website, MI6 has discovered an evil al-Qaida plot to kill thousands in a huge holiday liner in the Caribbean with suicide bombs. The patrolling British Royal Navy frigate Iron Duke - whose crew includes Prince William - would run the risk of being caught in follow-up blasts aboard the liner.

日前，英国军情六处在监视&基地&圣战分子网站后惊奇地发现，恐怖分子正密谋对加勒比海的豪华邮轮发动自杀性袭击，一旦得逞将造成数千人死亡，而威廉王子服役的&铁公爵号&也在这一海域巡游，很可能受爆炸冲击波着火。

The basic concept of FOP can be summarized as to further optimize effective prescription according to the standard of curative effects and with the aid of modern science and technology and theories of traditional Chinese medicine.

其基本内涵可概括为：以确有疗效的中药复方为研究对象，以现代科学技术和传统中医药理论为技术支持，以该复方所治病证的药效响应为评价标准，以优化重组疗效更优的新复方为研究目的。

Ever since our world has been a world, native forests have been indiscriminately exploited by man.

自从我们的世界一直是世界原生森林被任意剥削人。