查询词典 toxicity

The initial SAR studies indicated:(1) the presence of a linker of methene at the N-1 may be beneficial to anti-HIV activity, while longer chain could enhance toxicity;(2) substituted phenyl at the C-2 could reduce toxicity;(3) 6-substituted benzimidazoles generally showed higher anti-HIV activity than 5-substuted ones;(4) the presence of a halogenated benzyl ring at the N-l would enhance anti-HIV potency and decrease cytotoxicity.

初步构效分析提示：(1)苯并咪唑环1位侧链间隔基为亚甲基时活性最好，侧链延长，毒性增大；(2)苯并咪唑2位侧链无间隔基毒性相对较低；(3)苯并咪唑6位取代活性高于5位取代；(4)苯并咪唑1位芳环用卤素取代，毒性明显降低。

The initial SAR studies indica ted:(1)the presence of alinker of methene at the N-1may be beneficial to anti-HIV activity,while longer chain could enhance toxicity;(2)substituted phenyl at the C-2could reduce toxicity;(3)6-substituted benzimidazoles generally showed higher anti-HIV activity than 5-substuted ones;(4)the presence of ahalogenated benzyl ring at the N-l would enhance anti-HIV potency and decrease cytotoxicity.

初步构效分析提示：(1)苯并咪唑环1位侧链间隔基为亚甲基时活性最好，侧链延长，毒性增大；(2)苯并咪唑2位侧链无间隔基毒性相对较低；(3)苯并咪唑6位取代活性高于5位取代；(4)苯并咪唑1位芳环用卤素取代，毒性明显降低。

The structure-toxicity relationship of 59 substituted benzenes was studied by the method of bayesian regularization neural network,and a QSAR model was built for environmental toxicity evaluation and prediction of substituted benzenes with lipid-water partition coefficient and four quantum indices.

利用贝叶斯规整化神经网络研究了59种苯取代的环境毒性和分子结构的关系。建立了基于脂水分配系数和4种量子指数的QSAR环境毒性预测模型。结果表明：该模型的预测性能超过偏最小二乘法和逐步线性回归方法，残差分析显示其稳定可靠，有望成为一种良好的苯取代物毒性的环境评价和预测的方法

methoxychlor; reproductive toxicity; developmental toxicity; reproductive hormone

但近年来的研究发现，MXC仍然具有诸多方面的毒性作用［1-2］，尤其以生殖毒性引人注目，并发现MXC及其代谢产物在体内外具有雌激素样作用和抗雄激素活性作用［3-4］，文建国等［5-6］也报道MXC对雄性生殖系统有一定的损害。

The aim was to study the effect of aluminum toxicity on growth of soybean root, and probe into the mitigative effect to aluminum toxicity.

［目的］研究铝毒对大豆根系生长的影响，并探讨铝毒的缓解作用。

In previous reasearches,importance was attached to the damage of skeletal tissue induced by fluorine.But with fluoride's extensive application,recent researches pay more attentions to non-skeletal toxicity of fluorine,especially to male reproductive toxicity of fluorine.

近年来，随着氟及其化合物的广泛应用，使得人们越来越多地暴露于高氟环境中，过量的氟对机体非骨相组织的损害，特别是对生殖系统的损害作用，日益受到人们的重视。

The third part of this project is to evaluate the safety of the nutria gland. The assay items will include single dose acute toxicity, multiple dose subacute toxicity and mutagenicity test.

在安全性评估方面，本计画将进行北美巨水鼠腺体之动物毒性试验，含单一剂量急毒性及重覆剂量亚急毒性，以及基因毒性试验。

Methods:The study of this subject is for making sure the function of decreasing toxicity on the compatibility of Nux vomica powder through experiment of acute toxicity and the little white mice s activity.

目的：为了验证马钱子散的配伍减毒增效作用，进行了马钱子散的配伍减毒作用实验研究和马钱子散的配伍增效作用实验研究。

Methods: Acute toxicity test, 30 days feeding test and teratogenicity test were carried out to judge the general toxicity and embryotoxicity of perilla seed oil.

通过小鼠急性毒性试验，大鼠30天喂养试验和传统致畸试验，研究紫苏油的急性，亚急性毒性和胚胎毒性；Ames试验、小鼠骨髓细胞微核试验和小鼠睾丸染色体畸变试验，研究紫苏油的遗传毒性。

To explore the difference of mutagenicity and acute toxicity between laundry detergent s and ponceau 4R in Misgurnus angullicaudatus,actute toxicity tests and micronuclei tests were studied.

采用急性毒性试验和红细胞微核测试法，研究洗衣粉与胭脂红对泥鳅的急性及遗传毒性的差异。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。