反应作用

The element of Fe on the surface of catalyst could exert the effect on the stability and adjusting the valence of Pd.

CO偶联反应过程中助剂铁起着价态调变和稳定的作用。

The heterologous protein fragments are so-called CTL epitope, which is the linear fragment or the space conformation structure recognized specifically by immune cell and plays a key role in CTLs activation. It is the elementary event of inducing immune responses and it decides CTL specific cytotoxic effects, therefore, selection of antigen epitope makes the pivotal step to identification of specific antibodies.

抗原肽是抗原中能被免疫细胞特异性识别的线性片段或空间构象性结构，是引起免疫应答和免疫反应的基本单位，在机体免疫中发挥关键的作用，抗原表位的选择也是能否获得特异性抗体的关键。

In addition, elutriation, growth, shrinkage and reaction act differently for the different-sized particles in the bed.

此外，扬析、长大、缩小和反应对床层中不同粒度的颗粒所引起的作用也不相同。

Objective: To investigate the mechanism of Emodin on the role of acute rejection in rat liver transplantation.

目的：探讨大黄素对大鼠肝移植急性排斥反应的作用机制。

This study was designed to investigate the effect of emodin on myocardial ischemia-reperfusion injury and protective effect against the possible mechanism of inflammatory response.

本研究旨在探讨大黄素对缺血再灌注损伤心肌的保护作用及对抗炎症反应的可能机制。

At very high temperatures, more endothermic reaction s play a role.

在很高的温度下，更多的吸热反应起作用。

At very high temperatures, more endothermic reactions play a role.

在很高的温度下，更多的吸热反应起作用。

The results are useful in the conceptual design and operation of fixed reactor involving intense endothermic reactions.

研究结果对具有强吸热反应的固定床反应器的设计和运行具有一定的参考作用。

Results: 1 The capacity of engulfment of A549 cells started enhancing at the 1h of preincubation with dexamethasone, reached the highest at the 4h of preincubation,At the 8h、24h of preincubation the capacity of engulfment evidently reduced. 2 Glucocorticoid cytosolic receptors antagonist RU38486 inhibited the improved engulfment ability by dexamethasone. 3Phagocytosing apoptotic eosinophils did not change the release of IL-6 and IL-8,but can inhibited the release of IL-6 and IL-8 from A549 cells stimulated by lipopolysaccharide. 4Increasely uptaking by dexamethasone also did not agitate the release of IL-6 and IL-8 from A549 cells. Conclusion: 1Dexamethasome improve the phagocyte capacity for apoptotic eosinophils of A549 cells by glucocorticoid cytosolic receptors, and the effect presents time-dependently. 2Phagocytosis of apoptotic eosinphils can degrade inflammatory reflection, so it is likely to be critical in the control of asthma inflammation.

结果： 1 A549细胞在地塞米松诱导后1小时吞噬能力开始升高，4小时吞噬能力达最高峰，8小时、24小时吞噬能力明显下降 2加入RU38486后抑制了地塞米松所增强的吞噬能力 3凋亡嗜酸粒细胞的吞噬并不能改变A549细胞释放IL-6和IL-8，但能抑制脂多糖刺激A549细胞后IL-6、IL-8的分泌 4地塞米松增加的吞噬也不激发A549细胞释放IL-6和IL-8 结论： 1地塞米松促进A549细胞吞噬凋亡的嗜酸粒细胞是通过A549细胞糖皮质激素胞浆受体发挥作用的，并且具有时间依赖性 2 A549细胞吞噬凋亡的嗜酸粒细胞能降低炎症反应，对哮喘炎症的控制具有重要意义

It was shownthat, among the three possible tautomers; i.e., the keto-form and the two enol forms, and thecorresponding enol anion, only the enol form 31 was actually responsible for the singletoxygen reactions.

用核磁共振及从头算法研究了化合物12b和23a在甲醇和吡啶中的烯醇化作用，结果表明，在其三种互变异构体以及相应烯醇负离子中，只有烯醇式31是实际参与单重态氧反应的成份。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。