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So it is a effective prescription of protecting and treating AD.In our experiments, the model ras were administered D-gal intraperitioneal injection and β-Amyloid protein fragment_(1-40) into hippocampus. Mean well we used the technique of optical lens、 electron microscope、 immunohistochemical method, biochemistry and molecular biology.We studied the mechanisms that DR pretect and treat AD from the aspects of apoptosis、 inflammation injury、 oxidative injury 、 cholinergic neuron injury and the behavior experiments at cellar and molecular level.

本实验复制了D-gal腹腔注射合并Aβ_(1-40)海马定向注射AD动物模型，运用光、电镜技术及免疫组化、生物化学及分子生物学等先进检测方法，从行为学及细胞、分子水平探索地黄饮子对过氧化损伤、胆碱能损害、炎症损伤、细胞凋亡等相关调控因素影响的作用机制。

This paper analyzes shell electron pair repulsion theory, valence-bond theory and molecular orbital theory on molecular structure of noble gas compounds.

对稀有气体化合物的分子结构分别用"价层电子对互斥理论"、价键理论"和"分子轨道理论进行了分析处理。

The results showed that the TEAOH possessed stronger framework-directing function during the synthesis process of SAPO-34 molecular sieve, and took up more electronegative framework positions while the morpholine mainly filled the micropore system of SAPO-34 molecular sieve.

结果表明，TEAOH在导向生成SAPO-34分子筛骨架过程中表现活跃，占据了较多的平衡骨架负电荷的位置，而吗啉主要起到填充分子筛孔道的作用。

In this paper, suah as Molecular electro-negativity distance vectors , Molecular Electronegativity Interaction Vector were further Studied.

文中对分子电性距离矢量/分子电性相互作用矢量等进行深入的研究。

A large molecular sizing agent modified AKD was prepared through the reaction between alkyl ketene dimmer and polyamide then cationization by epichlorohydrin. The large molecular sizing agent has high positive charge and emulsifiability.

摘 要：将聚酰胺多胺与AKD反应，并用环氧氯丙烷将其阳离子化，制备出一种具有高阳电荷的改性AKD大分子，并在中、碱性条件下用该改性AKD对漂白硫酸盐阔叶木浆进行施胶。

Evolutionism is the most important theory in life science. With the development of molecular biology, the research of evolution has been pushed to the molecular standard.

分子生物学的发展，把进化研究推进到分子水平，因而在分子水平研究亲缘关系已成为生物信息学的重要篇章。

Repens L. and E. intermedia Nevski by using SSR, in order to provide science theories basis and base to further study E. repens L. drought resistance gene molecular marker, discover excellent drought resistance gene source , fast and efficiently select with the molecular marker of drought resistance gene catena for E.

通过对20 份来源不同的偃麦草与中间偃麦草种质材料在室内模拟逆境和田间干旱条件下进行抗旱材料的筛选和鉴定，应用SSR 技术对偃麦草抗旱分子标记进行引物筛选，为进一步深入研究偃麦草与中间偃麦草抗旱基因分子标记、发掘优异抗旱基因源，快速高效筛选出与偃麦草与中间偃麦草抗旱基因连锁的分子标记提供科学理论依据和基础。

Yang, BS in Microbiology (1982), Xiamen University; PhD in Biochemistry/Molecular Biology (1994), University of Houston, Texas; 1982 -1988, Assistant Engineer, Guangzhou Institute of Microbiology; 1996-1998; NIH Postdoctoral Fellow/Associate Research Scientist (1994-1998), Department of Biochemistry/Ophthalmology, Columbia University, New York; 1998-2005, Research Assistant Professor/Research Officer , Institute of Molecular Biology/Department of Physiology, The University of Hong Kong; 2006 – present, Professor, Xiamen University.

厦门大学微生物学学士(1982)；美国德州休士顿大学生化博士(1994)； 1982 -1988，广州市微生物研究所，助理工程师； 1994-1998，美国哥伦比亚大学，美国NIH博士后/副研究员； 1998-2005，香港大学分子生物研究所/生理系，研究助理教授/研究员； 2006–现今，厦门大学生命科学学院，教授/博士生导师，兼厦门大学实验动物中心主任、福建省实验动物学会常务理事

Due to its linear chain structure, polyacrylamide, combined with DDA, tends to form the high molecular collector with more surface activities. In addition, with the high molecular weight, polyacrylamides (with the exception of hydroxamic acid polyacrylamide) can strongly flocculate kaolinite, which can increase the adsorptive density of collector and activate the kaolinite flotation.

由于分子的直链结构，聚丙烯酰胺药剂易与捕收剂十二胺形成表面活性更高的高分子捕收剂，同时由于聚丙烯酰胺具有较高的分子量，对高岭石显示很好的絮凝作用，增加了捕收剂的吸附密度，活化了高岭石的浮选。

Flory found for the first time that the zero shear viscosity of thepolymer in melt is proportion to its molecular weight for flexible polymersin 1940. Hereafter Fox and Flory found that the zero shear viscosity isproportion to M〓 when the molecular weight is above the critical value,and is proportion to M when below the critical value.

1940年Flory首先发现对于柔性链聚合物而言，其液态的零切粘度同其分子量成正比；此后， 1948年Fox和Flory发现当聚合物链的长度超过某一临界值时，粘度与分子量的3.4次方成正比，而在临界值之下时粘度与分子量的1次方成正比。

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。