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749Mg/ml and 0.778u/ml, respectively. 5. Study on the viscosity changes of reaction solution and analysis of enzymatic hydrolysis products by TLC, HPLC showed that ChiB was an endo-type cleavage enzyme. It decreased viscosity of reaction solution, hydrolyzed β-(1, 4) glucosidic bond of chitosan, acted on GlcN-GlcN, GlcN-GlcNAc and/or GlcNAc-GlcN glucosidic bond. It did not act on GlcNAc-GlcNAc glucosidic bond. Hydrolysis products of chitosan were composed of chitotriose, chitotetraose and chitopentose.

通过测定酶解液体系粘度和对酶解产物的TLC、HPLC分析，在国内首次深入地研究并报道了内切、外切壳聚糖酶的酶解作用模式，结果表明：酶ChiB是一种内切酶，以内切方式水解壳聚糖的β-（1，4）糖苷键，即作用于GlcN-GlcN、GlcN-GlcNAc和／或GlcNAc-GlcN糖苷键，不能作用于GlcNAc-GlcNAc糖苷键；酶解终产物以壳三糖、壳四糖、壳五糖为主。

They are:In the third chapter, the crystal structures of these new dca complexes are described anddiscussed in detail. Besides two mononuclear complexes, 1 and 2, complexes 3～15 arecoordination polymer with novel and interesting structural characteristics. 3, 6, 7, 8, 9 are 1Dpolymers, 4 and 5 are of 2D extending structure, while 10, 11, 12, 13, 14, 15, 16, 17 form thefirstly reported series heteronuclear dca coordination polymer, in which (except 10) differentbuilding blocks, with different metal ions in them, construct interesting architecture, like α-and β-type 〓 chains, ladder chain 〓, scaffold structure of 12, and "sandwich"layer structure in 15 and 16, etc..

这些配合物是：第三章中，我们详细描述讨论了这些新型的二氰胺配合物的晶体结构，除两个单核配合物1和2之外，其余十五个为配位聚合物并具有新颖和有趣的结构特征。3，6，7，8，9是一维配位聚合物，4和5则呈现二维扩展结构，而10，11，12，13，14，15，16，17属于首次报道的一系列的二氰胺异金属配位聚合物，其中(除10外)含有不同金属离子的构造&砌块&可构建出有趣的结构，如α-和β-型〓链，梯形链〓，12中的脚手架结构，以及15和16中的&三明治&层状结构等。

When two type of oils, a model oil [ n -hexadecane ( n -C16) containing DBT] and a hydrodesulfurized diesel oil with various organic sulfur compounds, were treated with Rhodococcus erythropolis NCC-1 cells, the total sulfur content significantly decreased, from 150 to 20 mg/L for n -C16 and from 554 to 274 mg/L for diesel oil.

NCC-1能使正十六烷模拟体系中的DBT硫由150mg/L 降到 20 mg/L；使加氢柴油中的总硫由554 mg/L 降到 274 mg/L。

Methods: The human endothelial cells of umbilical vein and rat microvascular endothelial cells were obtained by methods of perfusion/digestion and histiocytic attachment using typeⅠcollagenase (0.1%). The morphologic characteristics of endothelial cells were observed under inverted microscope.

采用0.1%Ⅰ型胶原酶消化灌注法和组织块贴壁法分别获得人脐静脉内皮细胞和大鼠微血管内皮细胞，每天在倒置相差显微镜下进行观察，并用免疫荧光法分别进行鉴定。

The frequencies of CBS gene C homogenetic type (13.5%) and C allele (43.9%) in ischemic group were higher than those in control group(6.0% and 38.0%, respectively).

实验检出患者组MTHFR基因T纯合基因型、杂合基因型和T等位基因频率分别为2.7%、51.4%和28.4%，对照组分别为1.2%、39.8%和21.1%。

These compounds are of substantial interest both inviewpoints of theory and practical applications, mainlyunder the stimulus to achieve synthetic models either foractive sites of iron-sulfur proteins or for transitionmetal catalysts. This thesis describes the synthesis, structures andconformations of 51 new iron-sulfur cluster complexes,which have been characterized by elemental analysis andstandard spectroscopic methods. In addition, single-crystalX-ray diffraction analyses were performed for 4 representa-tive new compounds. Reactivities of μ-〓 with mono- and di- Grig-nard reagents derived intermediates toward various organicelectrophilic substrates were studied, along with complexa-tion of arynyl-containing iron-sulfur clusters by 〓Thus, several bridged, non-bridged, monomeric, dimeric,homonuclear, heteronuclear iron-sullfur and iron-sulfur co-balt-carbon cluster complexes were synthesized. A novelreaction and convenient route for the synthesis in highyield of tetranuclear iron complexes 〓 containing atetracoordinated sulfur atom was discovered, whereas aplausible mechanism based on experimental results was propo-sed for the formation of the new cluster type.

鉴于有机铁硫原子簇化学在基础理论发展和应用方面的重要意义，因此我们开展了这一课题的研究，并取得以下主要成果： 1、本文共合成了51个新有机铁硫及含钴碳簇基的有机铁硫原子簇配合物，除用元素分析，NMR，IR，MS法表征其结构和构象外，还用X-光衍射技术测得四个代表性配合物的单晶结构和构象； 2、我们业已发现炔基Grignard试剂同〓可形成一种&开环&与&闭环&中间物的平衡混合物，研究该平衡混合物同各种亲电试剂的反应； 3、研究发现了一种可高产率地形成〓含〓四配位硫挛合簇的新化学反应并对此反应提出了—种有趣的反应机理； 4、首次由1，4-二溴丁烷双Grignard试剂与〓制得一种新型铁硫簇双硫阴离子活性中间体，并进而研究了它的亲核反应性能； 5、找到了通过〓的光化学反应来合成簇合物〓-〓的一条有实用价值的新路线。

RESULTSWhen the dosage of the Aipingxiao were 13.0, 6.5g/kg by intragastric administration, the inhibition rates was 34.2％, 28.1% in the transplantation with S180 Sarcoma, the inhibition rates were 50.8%, 40.8% with H22 liver cancer, the inhibition rates were 74.2%, 57.0% with Lewis lung cancer, respectively. The survival rate increased significantly in the hydroperitoneum type of transplantation with H22 liver cancer more than model group.

结果］分别以13.0，6.5g/kg剂量的癌平消灌胃给药，对小鼠移植性S180肉瘤增殖的抑制率分别为34.2%，28.1%，对小鼠移植性H22肝癌实体瘤增殖的抑制率分别为50.8%，40.8%，对Lewis肺癌实体瘤增殖的抑制率分别为74.2%，57.0%，H22肝癌腹水型小鼠的生存时间明显延长，与模型组比较均有显著性差异。

The rheological properties of a novel type associating copolymer P, composed of acrylamide and a small amount of 2-phenoxylethyl acrylate (x≤1.0%)as hydrophobe, were investigated in aqueous solution by viscomitry and dynamic modulus measurement.

应用黏度法和动态模量研究了新型缔合聚合物P的溶液流变性质。该聚合物由丙烯酰胺和少量2-苯氧乙基丙烯酸酯n(POEA≤1.0%）组成。

Ballasts and Capacitors 21 镇流器和电容器 21.1 A ballast and starter or ignitor, when provided, shall be rated for the operation of the type and size of lamps involved and shall be electrically connected in accordance with the diagram or instructions on or with the ballast.

21.1镇流器和启动器或启辉器，应该相关类型和大小的灯泡相配，并且连线方式和镇流器上面的表或着说明书一致。

The results showed polymeric diaryliodonium salts were effective aryl ion transfer reagents. Thirdly, a new type polymer supported hypervalent iodine reagents poly { [4-Hydroxy iodo] styrene} has been developed. It was an effective oxidative reagent, and could be applied to the one pot synthesis of 4-arylthiazoles.

然后，我们以聚苯乙烯羟基对甲苯磺酰氧基碘苯为原料，成功制备了一类新型聚合物高碘试剂—聚苯乙烯负载的炔基碘盐，并研究了其作为炔基转移试剂的有效性：(1)该试剂可对硫、氮、硒等负离子进行亲电炔基化反应，合成炔基亚砜、0，0-二烃基二硫代磷酸炔基酯、1-苯乙炔基苯并噻唑以及炔基硒醚。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。