致活

血小板致活因子（PAF）是人体内受激细胞产生的血小板刺激剂，可导致炎症、溃疡等疾病。

Platelet-Activating Factor ( PAF ) was discovered as a powerful platelet-stimulating agent which leads to some diseases , e.g. inflammation .

玮致活公司已有很多年未能实现像样的利润。

Wedgwood had not made a decent profit for years .

乔舒亚玮致活一直是令人敬畏的技术革新者。

Josiah Wedgwood had been a formidable technological innovator .

紫外光致活的Pt/TiO2对苄醇催化自氧化反应的研究

Studies on Self-Oxidation Reaction of Benzyl Alcohol Catalyzed by UV Illumination-Activated Pt / TiO_2

他们缺乏玮致活的冷酷，为了拯救英国的就业，他们在将生产外包至海外方面动作太慢。

They lacked his ruthlessness , moving too slowly to move production offshore in an effort to save UK jobs .

玮致活公司证明了自身的不适应，在当前存在的形式中已经死亡，一位勇敢或莽撞的投资者也有可能让它复活。

Wedgwood proved unfit and has perished in its current form , pending possible resurrection by a brave or rash investor .

对最优催化剂进行了活化气氛、反应温度、催化剂致活时间、反应气流速等方面的考察。

The activation ambience , reaction temperature , catalyst 's send live time , gas flow rate were used to study the best catalyst .

在流血时，一种复杂的凝血胶原会在凝血致活元素的作用下转变成凝血，再将纤维蛋白质转化为血纤维蛋白。

In response to bleeding , a complex series of clotting-factor interactions leads to its conversion by thromboplastin to thrombin , which transforms fibrinogen in plasma into fibrin .

结果：PEG修饰使TCS的致核糖体失活活性约降低90%；

Results : Ribosome-inactivating activity was decreased by 90 % after PEG modification .

方法：利用定点突变将TCS第219位的天冬酰胺残基改变为半胱氨酸残基（Q219C）以供定点聚乙二醇（PEG）修饰，测定修饰产物的致核糖体失活活性及小鼠中期引产活性。

Methods : Glutamine residue in 219 of trichosanthin was mutated into cysteine residue ( Q219C ) by site-directed mutagenesis . The mutein was then modified by polyethylene glycol ( PEG ) . Ribosome-inactivating activity and abortifacient activity of the modified products were determined .