丙酮的

Influence of dry or wet bonding on microleakage of Ti alloy inlay;2. Influence of dry or wet dentin bonding surface on wet bonding strength: a microtensile study;3. To study the microstructural influence of dry or wet dentin bondin g surface on the dentin bonding interface, five wet bonding systems were used to bond Chrisma B20 resin with dry or moist dentin surface with scanning electron m icroscope.

结果湿粘结时5种粘结系统在粘结界面获得良好的渗透图象；干燥粘结时，两种以丙酮为溶剂的粘结系统在干燥粘结时形成的粘结界面，与湿粘结时有明显的区别，混合层较薄，并有明显的不完全渗透的结构和混杂层的形成；以酒精和水为溶剂的粘结系统在两种不同粘结状态时粘结界面的超微结构没有明显的区别。

The molecular weight dependence of the distribfition of polymer molecules between the coacervate and the dilute phases on the phase separation of polymethylmethacrylate-acetone-methanol system has been proved to follow the relation first derived by Flory for binary systems: f"_j/f′_j = Qe~_j where f"_j and f′_j are the weight fractions of the polymer molecules of molecular weight M_j in the coacervate and in the dilute phases respectively, while Q and σ are parameters.

1。聚甲基丙烯酸甲酯-丙酮-甲醇体系的两次分相实验用θ-溶剂中的沉降速度法测定分相前试样和浓相的分子量分布曲线，得到高分子在浓稀相重量分配的分子量依赖关系 f_j=Qe~证实Flory的溶度函数形式与实际相符，并适用于三元体系的相分离，但Q值与两相体积比R值并不相同。 2。再分级使级分的分子量分布宽度随再分级次数的增加而减小，通常认为到第三次再分级其效果已不显著并不确实。

To understand the molecular basis of the high selectivity of the inhibitor and the mechanism of feedback inhibition, we determined the crystal structure of LiCMSC (C-terminal regulatory domain of LiCMS) in complex with isoleucine, and performed a biochemical study of the inhibition of LiCMS using mutagenesis and kinetic methods.

丁建平和赵国屏课题组合作，运用结构生物学和生物化学的方法分别研究了 CMS 的催化结构域与其底物丙酮酸、乙酰辅酶 A 、金属辅基的四元复合物的晶体结构，和 CMS 的调节结构域与反馈抑制剂异亮氨酸的复合物的晶体结构，以及全酶与这些配体相互结合的动力学性质。

Four non-ionic europium complexes,〓-phen(11),〓·bipy(12),〓·dia(13) and 〓(14)(TTA=2-thenoyltrifluoroacetone, DBM=dibenzoylmethane, phen=phenanthroline, bipy=2,2'-bipyridine, dia=4,5- diazafluoren-9-one, dmbp=4,4'-dimethyl-2,2,-bipyridine), were synthesised and the triboluminescent phenomena of 12, 13 and 14 were firstly observed. Structure determinations of 11,12 and 14 were carried out. The triboluminescence maxima of 12 and 13 are similar to those of their photoluminescence. X-Ray structure analyses show that Eu atoms all exhibit eight-coordinate tetragonal antiprismatic geometries and complexes 11, 12 and 14 are all centrosymmetric.

二、合成了四个非离子型的铕的配合物：〓、〓、和〓(14)[HTTA=2-噻吩三氟甲酰丙酮，DBM=二苯甲酰基甲烷，phen=邻菲罗啉， bipy=2，2'-联吡啶，dia=4，5-二氮杂芴-9-酮，dmbp=4，4'-二甲基-2，2'-联吡啶]，首次报道了12、13及14的摩擦发光性质，测定了11、12及14的晶体结构，并系统地讨论了晶体结构和摩擦发光活性之间的关系。12及13的摩擦发光光谱的极大值均类似与其相应的光致发光光谱，表明它们有相同的激发态。

Briefly, coronal brain sections (100 mm)were cut with a vibratome, postfixed with 4% glutaraldehydein 0.1 mmol/L cacodylate buffer (pH 7.4) for 1 h, andthen with 1% osmium tetroxide in 0.1 mmol/L cacodylatebuffer for 2 h. After rinsing with distilled water, the brainsections were treated with 1% aqueous uranyl acetateovernight, dehydrated in an ascending series of ethanolsto 100%, followed by dry acetone, and then embedded inDurcupan ACM. Ultrathin sections (0.1 mm) were cut andstained with 3% lead citrate and subsequently examinedwith a Zeiss transmission electron microscope (Zeiss Inc.,Thornwood, NY, USA).

简单的说，先用切刀制成100um的冠状脑切片，然后用含有4%戊二醛在0.1 mmol/L的二甲砷酸缓冲液(PH7.4)中固定1小时后，放在含有1%四氧化锇的0.1 mmol/L的二甲砷酸缓冲液中2小时，接着用蒸馏水冲洗后，放在1%的aqueous uranyl acetate中过夜，接下来用梯度酒精(至100%)脱水，然后用丙酮干燥，再用Durcupan ACM包埋，切成0.1um的超薄切片后用3%的lead citrate染色，随后用透射电子显微镜观察。

This dissertation is mainly focused on the reactivity of methylenecyclopropanes and comprises six parts. 1 The reactions of methylenecyclopropanes with phenylsulfenyl chloride, phenylselenyl chloride and diphenyl diselenide; 2 The coupling reactions of the ring-opening products derivated from methylenecyclopropanes; 3 The palladium-catalyzed ring-enlargement of mono-aryl group substituted methylenecyclopropanes to cyclobutenes. 4 The gold-catalyzed domino ring-opening and ring-closing hydroamination of methylenecyclopropanes with sulfonamides; 5 The Lewis acid-catalyzed reactions of mono-aryl group substituted methylenecyclopropanes with diethyl ketomalonate in the presence of water; 6 The iodobenzene diacetate mediated novel 1,3-dipolar cycloaddition of methylenecyclopropanes, vinylidenecyclopropanes, and methylenecyclobutane with phthalhydrazine.

本论文主要研究了亚甲基环丙烷类化合物的一些化学反应性能，共由以下六部分组成：1、亚甲基环丙烷类化合物与苯硫氯、苯硒氯及二苯基二硒的反应；2、亚甲基环丙烷类化合物开环产物的偶联反应；3、单芳基取代的亚甲基环丙烷类化合物在钯催化剂作用下的扩环反应；4、金化合物催化磺酰胺对亚甲基环丙烷类化合物的串联开环关环氨氢化反应；5、路易斯酸催化亚甲基环丙烷类化合物与丙酮二羧酸二乙酯在有水存在下的反应；6、醋酸碘苯促进的亚甲基环丙烷类化合物、亚乙烯基环丙烷类化合物及亚甲基环丁烷类化合物与邻苯二甲酰肼的新型1，3-偶极环加成反应。

Alanine, glycine and glutamine, and present weak resonances of creatinine also; diabetes mellitus patients show hyperglycorrhachia and strong resonances for ketone bodies and glycine; patients with benign prostatic hypertrophy or urethral stone have high levels of creatinine; the genital tumor females can be distinguished with low pyruvate levels on the bases of /sup 1/H-NMR spectra.

以下乃是由上述样品族群之氢光谱所得之结论；孕妇的脑脊髓液具有低浓度的脊髓糖；胺基酸(如丙氨酸；麸氨酸和甘氨酸)和肌酸酐；有酮体生成，糖尿病患的脊髓液在氢核光谱显示高浓度的脊髓糖，另外有丙酮酸；乙醯乙酸盐和甘氨酸的强烈共振讯号，而具摄护腺肥大症或是尿道结石的病患，具有高浓度的肌酸酐在其CSF的氢光谱中。

With the analysis and discussion of their photoini- liability, it was indicated that their max are all around 330 nm, and all of them have excellent solubility in water and good photoinitiability. Furthermore, the three Photoinitiators with α-tert-amine are obviously superior to the one with just α-sec-amine. Among the four photoinitiators l-(4-aminophenyl)-2-diethylamino-l- propanone dihydrochloride is the best and it has excellent use value.

通过对它们的光引发性能测试和构效关系的分析探讨，表明四种光引发剂的最大吸收波长λ_(max均在330nm左右，具有优异的水溶性和良好的光引发性能，其中具有α-叔胺基团的三种光引发剂明显优于具有α-仲胺基团的光引发剂，尤其以1-(4-氨基苯基)-2-二乙胺基-1-丙酮盐酸盐的光引发性能最好，具有推广应用前景。

In this study, 105 TDFs were in silico mapped in the rice high-density linkage map. Nineteen TDFs were mapped to the quantitative trait loci regions for root growth under water-limited conditions in, at least, two of three rice populations derived from three crosses with the same parent of Azucena (Bala×Azucena, IR64×Azucena and IR1552×Azucena). Four of 19 genes (T37, L16, T17 and T7) were mapped based a RIL population of IR1552×Azucena by southern blot analysis. Five genes encode putative or hypothetical protein. Other 14 genes were similar with known genes in databases including expansin (OsEXP2), late embryogenesis-abundant gene , an SR-related protein essential for spliceosome assembly (SART1), autophagocytosis protein , bHLH protein, fruit-ripening protein similar to ASR, nickel-binding protein 2A, DNA-binding protein, pyruvate dehydrogenase kinase , stomatin-like protein, SR1 induced by sucrose starvation, vacuolar protein sorting protein (VSP33a), gibberellin action negative regulator and retroelement.

根据核苷酸序列将105个基因电子定位到水稻的高密度连锁图谱上，其中19个差异表达基因定位在Bala×Azucena、IR64×Azucena和IR1552×Azucena中至少两个群体共同的与根生长相关的QTLs区间，并用Southern杂交将其中的4个定位到IR1552×Azucena群体遗传连锁图谱相应的位点上。19个基因中的5个编码推断的未知功能蛋白质，其余14个编码已知功能蛋白，分别为膨胀素（Os-EXP2）、胚胎后期丰富蛋白、剪接体安装必需的SR相关蛋白（SART1）、自吞噬蛋白、碱性螺旋-环-螺旋转录因子、与ASR相似的果实成熟蛋白、镍结合蛋白、DNA结合蛋白、丙酮酸脱氢酶激酶、stomatins类蛋白、蔗糖调节蛋白SR1、液泡蛋白分类蛋白（VSP33a）、GA负调节因子、逆转座元件。

Sodium propionate and sodium pyruvate could promote liver gluconeogenesis by up-regulating the abundance of PEPCK-C mRNA in the hepatocytes, but the up-regulation was limited.

表明，丙酸钠、丙酮酸钠能通过上调体外培养的新生犊牛肝细胞PEPCK-C mRNA的表达而促进肝糖异生代谢，但上调作用是有限的；胰岛素能通过下调体外培养的新生犊牛肝细胞PEPCK-C mRNA的表达而抑制肝糖异生代谢，且下调作用呈剂量依赖性；胰高血糖素与胰岛素作用刚好相反；瘦蛋白未起直接的调节作用。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。