活性的

Results showed that there was significant correlation between the two assays with catechol and tyrosine as substrate respectively.

结果表明，以邻苯二酚和酪氨酸为底物所测PPO活性极显著相关，邻苯二酚所测活性强，但酪氨酸所测活性的变异系数大。

In this study, curcumin and 23 novel analogs were used to screen for inhibition of matrix metalloproteinase-9 (MMP-9) activities, protein and gene expression of highly metastatic HT-1080 human fibrosarcoma cells to explore the mechanisms of action.

本篇研究使用姜黄素及其二十三个结构类似物对於具有高度转移活性的人类纤维肉瘤细胞(HT-1080)进行MMP-9活性、蛋白质及基因表现抑制活性筛选，并探讨其可能机制。

MTT colorimetry was used to detect the influence of Rg3 on lymphocyte transformation function and NK cytotoxicity. The activity of IL-2 was detected by lymphoblast proliferation assay and IFN-γ by cytopathic effect inhibition.

MTT法检测Rg3对小鼠淋巴细胞转化功能和NK细胞毒活性的影响，鼠脾T淋巴母细胞增殖分析法测定上清中IL-2活性，细胞病变抑制法测定IFN-γ活性。

Mn-complexes in which Mn atom ligand with the N atom within ligand can stimulate the recovery of electron transfer and oxygen evolution. The trinuclear Mn-complex is extremely sensitive to the addition of CaCl2. It is suggested that there is an interaction between Ca2 and carboxyl within the trinuclear Mn-complex during photoactivation and this interaction benefits the ligation of Mn atom to the apo-WOC and form an active WOC. Binuclear MnMn complex shows slightly higher efficiency than binuclear MnMn complex in restoration of O2 evolution activity. It is suggested from our results that recovery of electron transport and O2 evolution with synthetic Mn-complexes is affected by different factors. Cl- can stimulate the reconstitution of WOC at the concentration of over 100mM;the maximal recovery of O2 evolution activity requires the presence of CaCl2 and 33 kDa protein polypeptide together. Bicarbonate can stimulate the reconstitution of WOC.

锰配合物中锰原子与配体中的氮原子配位连接时，能显著恢复电子传递活性和放氧活性；三核锰化合物在重组时对CaCl2的存在非常敏感，我们认为Ca2 与三核锰化合物中的羧基之间存在一定的相互作用，而这种作用有助于锰原子的光配位进而使三核锰化合物易于组装成有活性的水氧化复合物：双核锰化合物MnMn比双核锰化合物MnMn在恢复放氧活性方面更有效；影响锰化合物电子传递能力恢复的因素与影响锰化合物放氧活性恢复的因素不同；在锰蔟重组过程中，氯离子的浓度必须在100mM以上，才能有效进行光重组；最大光重组效率的获得必须有钙离子和33kDa多肽同时存在；碳酸氢根离子促进锰化合物与去锰光系统II的光组装。

The activity of protease and urease in rhizosphere was higher than those in non-rhizosphere.

而对土壤蛋白酶和脲酶活性的研究发现根际酶活性明显高于非根际酶活性。

Cinnabarinus at 150 mg/L.The influences on bioactivity of substituted pyrazole and pyrimidine were discussed respectively: pyrazoles substituted with phenyls at 3 position had higher activity than thiophen and compounds with R_1=methyl had higher activity than that with R_1= hydrogen, pyrimidines substituted with methyl at 2 (R_3) and 5 (R_3) position and phenyl at 6 position were most active.

本论文对吡唑及嘧啶取代基对活性的影响分别进行了讨论，可知：吡唑3位为取代苯基的化合物杀菌活性优于取代噻吩的，吡唑4位(R_1)为甲基的杀菌活性高于R_1为氢的活性；嘧啶的2位(R_3)为甲基，5位(R_1)为甲基，6位为无取代基的苯基时活性最好。

The results of catalytic activity show that both Ni-B and Ni-P sample have the same kinetic equation for hydrogenation of 1, 3-cyclopentadiene to cyclopentene and the same TOF. Therefore, it can be suggested that they have the similar active site. The catalytic activity of Ni-B sample is higher than that of Ni-P sample, and it is due to the more active sites of Ni-B sample having.

催化活性测试表明，Ni-B与Ni-P催化环戊二烯加氢反应对环戊二烯具有相同的动力学方程，而且两者具有相似的氢转换频率，表明两者的活性中心本质上是相似的，类金属不同导致的电子转移方向的不同仅仅影响反应的初活性，宏观活性的差别在于两者活性中心数量的不同。

The reason may be that complex formed by rhodium and halide was difficult to produce the catalytic active species. Therefore halide ion was the poison for the rhodium catalyst in hydroformylation of olefins in ionic liquid. The effect of double long chain cationic surfactant (DCMAB, dicetyl dimethylammonium bromide) on selective hydrogenation of cinnmaldehyde catalyzed with RuCl3·x H2O/TPPTS was studied.

进一步的研究表明在使用有良好反应活性的两种催化剂HRh3 、Rh_2进行催化反应时，向体系中加入含有卤离子的化合物时将使反应活性大大降低，而且随着卤化物加入量的增加，催化剂的活性迅速下降，这是卤离子可能和金属铑作用使它难于生成催化活性物种，进一步证明卤素离子是引起催化剂活性下降的极其重要的因素。

For each specified amount of titanium tetraiodide used, there is a "critical Al/Ti ratio" at which the catalytic system displays highest activity, below which it shows no activity, and above which its activity decreases gradually Fig.

对每一四碘化钛用量出现一具有最高活性的&临界Al/Ti此&；低于这一Al/Ti比，活性完全消失；高于这一Al/Ti比则活性逐渐降低(图2)。

Besides,the infrared and Ramam activity of the vibration mode of the molecule and some possible transition of the vibration spectrum has also been researched.The results show: the vibration mode of Cr6 molecule is Гvib=2A1g+2E...

研究结果表明，其振动模式是红外活性，振动模式A1g、Eg和T2g是拉曼活性，振动模式T1g和T2u是非活性的，红外跃迁可以跃迁到T1u，拉曼跃迁可以跃迁到A1g、Eg和T2g。

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。