氨基氮

Objective To study the effects of inducible NOS inhibitor aminoguanidine on the expression of NOS in facial nerve and surrounding tissue of traumatic facial paralysis rats.

目的 研究诱导型一氧化氮合酶抑制剂氨基胍对创伤性面瘫大鼠外周面神经及周围组织一氧化氮合酶表达的影响。

BACKGROUND: Previous studies demonstrate that inducible nitric oxide synthase and NO play important roles in both the occurrence and the recovery of acute soft tissue injury; however, their effect on the recovery of chronic injury, especially, the influence of aminoguanidine on recovery of acute soft tissue injury remains unclear.

背景：研究表明，诱导型一氧化氮合酶及一氧化氮在急性软组织损伤及其修复过程中起到重要的作用，但目前有关其在慢性软组织损伤修复过程中的作用，及氨基胍对其作用的影响尚不明确。

The 6-nitro-2-benzothiazolyldiazoaminoazobenzene as a chromogenic reagent was synthesized and its color reaction with nickel has been investigated.

合成了显色剂6 硝基 2 苯并噻唑重氮氨基偶氮苯，并在TritonX 100表面活性剂存在下，研究了其与镍的显色反应。

In the third part of this paper, a facile method is presented for synthesis of malonaldehyde dianil from propargyl alcohol by oxidizing using chromium trioxide and addition reaction with aniline.

对肼基苯磺酸是由对氨基苯磺酸经亚硝酸钠重氮化得到的重氮盐用亚硫酸氢钠还原、水解、硫酸酸化制得，本文经多次实验确定了反应原料、用量及反应条件，得到的产品纯度好，产率高。

Asymmetric dimethylarginine and monomethyl arginine are endogenously produced amino acids that inhibit all three isoforms of nitric oxide synthase.

点评：内皮一氧化氮以及一氧化氮合酶是目前门静脉高压症以及相关并发症的发病机制的研究热点之一，本文研究了抑制NOS的内源性氨基酸类化合物的清除酶—-二甲基精氨酸–二甲氨基水解酶，进一步的深入探究了这一发病机制，为今后治疗作用位点的选择、药物研发以及相关实验研究提供了一定的理论依据，个人认为该实验意义较大。

The charges on the substituents affected OWF〓 greatly for some azobenzene derivatives, pyridone derivatives, nitrodiphenylamine derivatives, some reactive dyes and 1, 4-diamino anthraquinone derivatives, in this instance, OWF〓 changed linearly with the change of the charges.

2给电子取代基或吸电子取代基的电荷对OWF〓有较大的影响，OWF〓随电荷的变化而线性变化，如某些偶氮苯衍生物、吡啶酮类染料母体、硝基二苯胺类化合物、偶合组分和重氮组分之间夹角α变化不大的活性染料、1，4—二氨基蒽醌衍生物等。

Based on the laminar diffusion model, the micro-mixing in a rotating packed bed was discussed by taking the competitive and consecutive azobenzene reaction between 1-naphthol and diazotised sulphanilic acid as reaction system.

在层状扩散模型的基础上，以1萘酚与对氨基苯磺酸重氮盐在旋转填充床内发生的竞争串联偶氮化合反应为例，探讨了填充床内的微观混合情况。

A new mathematical model is built based on the laminar flow model and coalescence and redispersion model. Taking the competitive and consecutitive azobenzene reaction between 1-naphthol and diazotised sulphanilic acid as an example calculated segregation index.

在层状扩散模型和聚并分散模型的基础上，建立了一个新的数学模型，以1—萘酚与对氨基苯磺酸重氮盐这一竞争串联偶氮化合反应体系为例，计算了反映微观混合状态的离集指数。

The reaction can be carried out in a non-aqueous solution and 4-aminopyridine can be diazotized with this method.

这个方法表现出如下优点：1），整个重氮化与偶联反应均在非水溶剂中进行；2），改变原料不同投料比，可以分别得到含有一，二，四偶联产物为主的反应产物；3），可以合成在酸性水溶液中不易重氮化的4-氨基吡啶的偶氮化合物。

The yield was 47.3%. A series of21 azo-1,3,4-thiadiazole compounds were synthesized by diazotizing of2-amino-5-alkyl-1,3,4-thiadiazole with nitrosylsulfuric acid, then couplingwith phenol, substituted phenol or naphthol. The yields were 19.6～58.8%.16 of them were new compounds.

制得的2-氨基-5-烃基-1，3，4-噻二唑用亚硝酰硫酸进行重氮化，再与苯酚、取代苯酚或萘酚发生偶合反应合成了21个偶氮-1，3，4-噻二唑类化合物，其中16个为新化合物，收率为19.6～58.8％。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。