产生诱导作用的

We transformed RMgBr into R-Ti derivatives with the production of byproduct MgBrO~(i-Pr at the same time, but we didn\'t need romove the Mg salt by centrifugation or chelating reagents, for bis[2-(N,N-dimethylamino)ethyl] ether could chelate with Mg atom and thereby reduced the Louis acidity of Mg salt, so we used R-Ti derivatives produced in situ to alkylate the aldehydes induced by BINOL-Ti complexes..

我们通过利用TiO~(i-Pr_4使格氏试剂转化成烷基钛，同时产生具有亲核加成促进作用的副产物MgBrO~(i-Pr，由于BDMAEE能与MgBrO~(i--Pr络合降低其路易酸活性，所以不需要离心或者借助络合试剂完全除去镁盐，而使用原位生成的烷基钛在BINOL-Ti诱导下对醛进行不对称加成。

It was the interactional result of electronegative double bond and branched chain with positive induction effect and space steri.

研究发现，加入不同的添加剂使润滑脂的油膜强度、锥入度和滴点产生不同的变化，并对其产生的原因作了机理分析，认为是由于极压抗磨添加剂分子中带负电性的双键和带正诱导效应及空间位阻效应的支链共同作用的结果。

The results indicated that the inhibited concentrations of kanamycin of adventitious bud formation of Helianthus annus were 75 mg/L and 100 mg/L, when the carbenicillin was used in the transformation procedure; the concentrations was 300 mg/L when the growth of agrobacterium could be effectively inhibited. At the same time, the induction and growth of adventitious bud were not remarkably injured.

在以卡那霉素为抗性选择标记时，对油葵不定芽起完全抑制作用的Km临界浓度在75~100 mg/L；在以羧节青霉素为抑菌剂用于油葵遗传转化试验时，其浓度为300 mg/L时即可有效抑制农杆菌的生长，同时又不会对不定芽的诱导及生长产生明显的伤害作用。

This system has good thermal stabi ity in ground state. When excited, it can undergo intra-ion-pair electron transfer, leading to the bleaching of the dye and the decomposition of the onium salt. The later results in the formation of initiating radical species.

在基态，这种体系具有良好的热稳定性，而在激发态时能发生离子对内光诱导电子转移反应，导致其发生漂白和碘鎓盐的分解反应，产生具有引发作用的自由基。

In the work, the laser-behavior under exposure of Ar〓 laser was discussed. The kinetic process of photochemical reaction, intermediate, sensitive process of diazophthoquinon system were studied by laser fluorescence spectrum and laser induced fluorescence attenuation. The nonlinear relation between photodecomposition rate of the system and laser power and concentration of solution was investigated in detail.

论文也进行了感光组成物感激光性能的研究：利用激光荧光光谱及激光诱导荧光衰减法实现了实时探测邻叠氮萘醌型光敏剂感激光光化学过程、中间体的产生与结构以及增感作用的研究，该方法在国内外文献中未见有报道。

Although ultraviolet-absorbing compounds were induced by solar ultraviolet radiation, they could not fully counteract the damage to H. fusiformis induced by UVR.

此外，阳光紫外辐射也诱导产生了一定量的紫外吸收物质，但并不足以抵抗紫外辐射对藻体的伤害作用。

Pioneering work by Cohen and coworkers about T cell vaccination in the experimental autoimmune disease, has showed that the establishment of immune response against T cell vaccine, such as anti-idiotype T cells or anti -idiotype antibody, by the way of the upregulation of immune networks, and subsequently functional depression of autoimmune to self-antigen were made by vaccining mice or rate with the attenuated autoreactive T cells .

从研究TCV在防治自身免疫性疾病中的作用机制表明，人为的TCV免疫，建立了拮抗T细胞的免疫应答，使免疫网络产生上调作用，抑制了原有的或即将出现的相关T细胞的功能，由此推测，是否能够把同种反应性T细胞作为TCV，来建立抗同种免疫反应的内环境，诱导抗原特异性的同种免疫耐受或免疫低反应性。

In other words, we prove our working hypothesis related to immune hyper-activation within intestinal mucose during HIV infection by the studies.

而在HIV感染时，由于危险信号的释放，病毒子模拟APc的作用，调节性T细胞优先被删除等原因导致生理性低反应性状态被打破，而出现免疫过度活化，从而产生更多的HIV易感细胞，通过直接感染以及活化诱导细胞凋亡，使肠道T细胞在短期内大量丢失，从而导致免疫缺陷。

The Arabidopsis CYP81F2 gene encodes a P450 monooxygenase that is essential for the pathogen-induced accumulation of 4-methoxyindol-3-ylmethyl glucosinolate, which in turn is activated by the atypical PEN2 myrosinase (a type of β-thioglucoside glucohydrolase) for antifungal defense.

拟南芥CYP81F2基因能都编码一种P450单加氧酶，这对4甲氧基-3二甲胺基芥子油甙的病原体诱导积累物是十分重要的。反过来，它也能被非典型PEN2黑芥子酶激活，以产生抗真菌的防御作用。

Carotenoids present effectively inhibition on the development of oral mucosal malignant tumor, especially in the lycopene and mixture group.

经由致癌物DMBA的诱导，槟榔嚼块萃取物的介入确实有促癌作用的产生，而类胡萝卜素的局部涂抹具有抑制槟榔嚼块萃取物诱发口腔黏膜上皮肿瘤的产生，尤其是蕃茄红素组和混合组较为显著。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。