丙氨酸

The parity-violating energy difference of D- and L-alanine was undertaken as a function of the dihedral angle θ of the carboxylate plane with respect to the Cα-Hα plane.

自然界的力只有弱力是宇称不守恒的。在分子物理中，电弱力宇称不守恒是导致D-和L-丙氨酸能差的根源。

Using the conformational search model of hyperchem, we have searched low energy conformations of α-alanine by the parameter of the dihedral angle.

用Hyperchem软件中的构象搜寻模块，对α-丙氨酸进行系统构象搜索，寻找分子低能构象。

Dose will be determined by the dose rate and irradiation time of the sample.

文中就确定吸收剂量的两种方法的可靠性进行了探讨，并利用两种类型的丙氨酸剂量计通过伴随法测定了被测样品的吸收剂量。

Objective To investigate the mutation characteristics in exon 7 of the PAH gene in phenylketonuria patients in Xinjiang.

目的研究分析新疆地区苯丙酮尿症患者中苯丙氨酸羟化酶基因外显子7的突变特征。

In order to identify the mechanism of melanic mutant of S. exigua, genetic regulation on pupae body color, puparial exuviae, phenoloxidase activity, dopamine andβ-alanine of SEW and SEM were investigated.

本文以SEW和SEM为材料，分别从蛹黑色性状的遗传规律、多酚氧化酶活力、电镜分析、高效液相分析、多巴胺和β-丙氨酸的微量注射及饲喂诱变几个方面进行了研究，以期找出甜菜夜蛾黑化的机理。

We have able to obtain images of a polypeptide, PAla, one of most simplemodels of silk fibroin.

我们成功地获得了丝心蛋白的模拟物之一的聚丙氨酸的STM图象。

Then, N-for-aspartame was obtained from the reaction of 3-formyl-4-carboxymethyl-1,3-oxazolidine-5-one and L-phenylalanine methylester hydrochloric acid under sodium acetate anhydrous in ethyl acetate, and the target product was prepared after removing formyl in the mixture system of hydrochloric acid, methanol and water, the yield of aspartame reaches 89.2%.

最后，用3-甲酰-4-羰基口恶唑烷-5-酮乙酸与L-苯丙氨酸甲酯盐酸盐在溶剂中进行接肽反应，然后在甲醇/盐酸混合体系中进行脱甲酰保护基，从而得到最终目标产物，产率为89.2%。

Results:Normal rats as the donator of serum, using methanolic extract of CWC, 10 times equivalent dose for adults every day, intragastric administration twice a day of 8-hour interval, keeping on 3 days, hemospasia after 2 hours of the last administration was the better preparative method of the serum containing drug.

建立CCl4诱导的原代培养大鼠肝细胞损伤模型，大鼠为含药血清供体，以含药血清对损伤肝细胞增殖及丙氨酸氨基转移酶泄漏的影响两个指标，结合含药血清中五味子乙素的含量测定，分别采用单因素考察、多因素的正交试验，优选含药血清的制备方法，并确定体系中血清添加量。

The results showed that the replacement of phenylalanine-82 with histidine led to a more stable global structure of the protein.

结果表明苯丙氨酸对组氨酸的取代使得蛋白质结构更为稳定。

Serum ALT activity was detected as an indicator of liver function damage and the content of MPO in liver tissues were detected by ELISA.

检测血清中丙氨酸转氨酶的活性作为肝功能损伤的指标，同时用ELISA检测肝组织中MPO含量。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新