合成因子

Parameter estimation method is adopted to get the effective diffusion coefficient from experimetal data,thus the tortuosity factor can be obtained.

在单颗粒串联的色谱柱中，采用示踪气体脉冲讯号输入一响应的动态法，由计算机自动采样分析应答曲线，通过参数估值得到气体在 ZA- 5氨合成催化剂中的有效扩散系数，进而得到曲折因子。

The propostion of synthesizing unit definition has improved the function which discribes the pradator growth with Liebig\'s minimum rule, which make it from uncontinuous to continuous.

合成单位的概念提出更进一步改善了用最小因子来刻画食饵的营养状况限制捕食者的增长的函数，使之由不连续变为连续。

Chemical senses; chemoreception; chemoreceptors; infochemicals; semiochemicals; chemical stimuli; chemical communication; chemical cues; chemical perception; vomeronasal organ; vomeronasal epithelium; vomeromodulin; pheromone-binding protein; pheromone biosynthesis-activating neuropeptide; PBAN; Dufour's gland; scent gland; scents; scent marking behavior; territorial behavior; feeding behavior; mating behavior; reproductive behavior; trail following behavior

化学知觉；化学感受化学接受体；信息化学；化学信息素；化学刺激物；化学通讯；化学因子；化学感觉；梨鼻器；犁鼻骨上皮；vomeromodulin；信息素-结合蛋白；信息素生物合成-激活神经肽；PBAN；杜氏腺；臭腺；气味；臭迹行为；区域性行为；摄食行为；交配行为；生殖行为；踪迹跟随行为下一页末页共有 29 条记录，本页从第 1 到第 10 条。

Antagonism of MR ablates the normal synthesis of progesterone in response to hCG although the mechanism remains unclear.;It was also concluded that even though mural granulosa cells are less likely to proliferate in response to exogenous stimulus in the form of epidermal growth factor after hCG, proliferation can be enforced in even luteinizing granulosa cells using insulin.

拮抗作用议员ablates的正常合成的孕激素反应机制，虽然目前还不清楚。；也有人得出结论认为，即使壁画颗粒细胞不太可能扩散针对外来刺激的形式，表皮生长因子后绒毛膜促性腺激素，扩散可以强制执行，甚至促黄体颗粒细胞使用胰岛素。

Itamin D from the skin and diet is metabolized in the lier to 25-hydroxyitamin D (Figure 1), which is used to determine a patient's itamin D status1,2,3,4; 25-hydroxyitamin D is metabolized in the kidneys by the enzyme 25-hydroxyitamin D-1-hydroxylase (CYP27B1) to its actie form, 1,25-dihydroxyitamin D.1,2,3,4 The renal production of 1,25-dihydroxyitamin D is tightly regulated by plasma parathyroid hormone leels and serum calcium and phosphorus leels.1,2,3,4 Fibroblast growth factor 23, secreted from the bone, causes the sodium–phosphate cotransporter to be internalized by the cells of the kidney and small intestine and also suppresses 1,25-dihydroxyitamin D synthesis.5 The efficiency of the absorption of renal calcium and of intestinal calcium and phosphorus is increased in the presence of 1,25-dihydroxyitamin D (Figure 1).2,3,6 It also induces the expression of the enzyme 25-hydroxyitamin D-24-hydroxylase (CYP24), which catabolizes both 25-hydroxyitamin D and 1,25-dihydroxyitamin D into biologically inactie, water-soluble calcitroic acid.2,3,4

从皮肤和食物来的维生素D在肝中代谢为25-羟基维生素D（图1），被用来决定病人体内维生素D情况的1，2，3，4；25-羟基维生素D在肾中被25-羟基维生素D1羟化酶（CYP27B1）转变为有活性的1，25-二羟基维生素D 。1，2，3，4由肾产生1，25-二羟基维生素D是被血浆甲状旁腺激素和血清钙，磷水平紧密调节。1，2，3，4由骨分泌的成纤维细胞生长因子23使钠磷协同转运蛋白被肾和小肠细胞内化及抑制1，25-二羟维生素D合成。5 在1，25-二羟基维生素D作用下肾和小肠吸收钙及磷的效率增高(图1)。2，3，6 它也包括25-羟四- 24 -羟化酶的表达(CYP24)，且将1，25二羟基维生素D和25羟基维生素D异化成无生物活性，水溶性的维生素D3-23羧酸。2，3，4

Biosynthesis and assembly of K88 fimbriae are regulated by the fae operon,which contains 10 genes designated faeA-faeJ.

菌毛的合成与装配是由fae操纵子调控的，fae操纵子包含10个基faeA～faeJ，其中有些基因表达菌毛装配所需的各种结构蛋白、分子伴侣和调控因子。

The thiopeptides, by binding within a cleft located between the ribosomal protein L11 and helices 43 and 44 of the 23S rRNA, overlap with the position of domain V of EF-G, thus explaining how this class of drugs perturbs translation factor binding to the ribosome.

核糖体蛋白L11和23SrRNA的43/44螺旋结构形成裂隙，L11的构象变化能够加宽该裂隙从而允许延伸因子EF-G插入，促使GTP水解，为肽链延伸合成过程中核糖体的构象变化提供能量，而Thio能够与L11和23sRNA结合，阻止L11的构象变化，使该裂隙处于闭合状态，抑制EF－G在延伸过程中的作用。

For the first time, we found that the EHFV propagated in HUVEC has a potentiating stimulation to ET-1 and PGI〓 secretion , which may be respensible for the increased plasma ET -1 level and PGI〓 concentration in patients with EHF during the early phase of the disease.

我们的研究结果提示，HUVEC对EHFV敏感，EHFV感染未引起HUVEC的细胞病变，但可抑制HUVEC的增殖，这有可能改变EC的基因调节，或低调，如Ⅷ R：Ag合成障碍，引起止血功能异常；或高调，如主要组织相容性复合物Ⅱ型抗原、干扰素β和内皮细胞白细胞粘附因子的表达增加，增强EC的炎症反应。

However, fac-Alq3 has been obtained only in the subgram order by sublimation of mixed polymorphs of Alq3 or by thermal conversion of commercial Alq3 followed by acetone and chloroform treatment because synthetic control of a ligand configuration has been considered difficult as a result of the favorable formation of the thermodynamically stable mer isomer.

然而，因子Alq3得到了只有在subgram秩序的升华混合晶型的Alq3或热转换商业Alq3其次是丙酮，氯仿的待遇，因为合成控制配配置一直被认为困难是由于有利的形成的热力学稳定滨海异构体。

Under the adjustment and control of cell growth factors, the cleavage and proliferation of the chondrocytes may be promoted in vitro.

体外研究发现，在白介素-1β和肿瘤坏死因子存在的条件下，IGF-Ⅰ仍能促进软骨细胞的蛋白多糖合成。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐