毒性

Single and joint toxicity of perchloroethylene and cadmium on Ctenopharyngodon idellus.

毒性可分为一般毒性(急性、亚慢性和慢性毒性)和特殊毒性(致突变性、致畸性和致癌性等)。

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。

The results of toxicity experiments showed that R32 would not cause acute, chronic, cumulative and genetical toxicity effect on algae, Allium cepa, Zebra, fish and mice before it absorbed Cr. The recovery and sterilization measurement in routine water treatment could reduce most of the R32 in effluent. This may ensure that the effluent would not cause any ill effect on all kinds of biology in the environment after it was discharged into the river.

毒性实验结果表明：在吸附Cr~(6+)以前R_(32)对微生物无致突变性，对藻类、洋葱、斑马鱼和小鼠无急性毒性、慢性毒性和蓄积毒性；吸附Cr~(6+)后，常规水处理中的各种回收和杀菌措施可以降低出水中R_(32)的量，使出水排入江河后不会对环境中的各种生物产生不良的影响。

The linear relationship between creaturely activity for alcohol, aether, ketone and ester and the molecular topological index is obtained.

研究了醇、醚、酮和酯对水生生物毒性、蝌蚪麻醉活性、沙镯幼虫麻醉活性、番茄植物毒性、红蜘蛛毒性、藤壶幼虫麻醉活性、局部麻醉剂活性和小鼠毒性等八种生物活性分别同其分子连接性指数的相关性。

With it, simple, mechanistically significant and highly predictive QSAR models were developed. These QSARs successfully model and predict the short-term phytotoxicity of substituted phenols involved both polar narcosis and bio-reactivity, the growth inhibition toxicity to Saccharomyces cerevisiae of substituted nitrobenzenes with mixed mechanisms of toxic action based on electrophilicity and the growth inhibition toxicity to Saccharomyces cerevisiae of large set of substituted benzenes with complex molecular structures and multiple mechanisms of action.

应用响应曲面分析方法建立了形式简单、意义明确并且具有高度预测性的QSAR模型，成功地预测了具有多种毒性机制的取代苯酚对高等植物的短期生长抑制毒性、具有多种亲电反应性机制的取代硝基苯对酿酒酵母菌生长抑制的反应性毒性以及结构复杂、机制多样的78种取代苯衍生物对酿酒酵母菌生长抑制毒性。

In order to reduce the variation of Photobacterium phosphoreum luminous intensity during testing, the Photobacterium phosphoreum toxicity test was modified by a correction factor, P〓.

混合有机化合物的发光菌生物毒性试验方法的研究，包括发光菌生物毒性测试方法的改进、混合物毒性的表征及混合物毒性测试方法的探讨。

An all previous dynasties book on Chinese medicine important toxicity to the human body harm degree has divided into greatly poisonously it virulent the small poisonous three levels or adds the micro poisonous level.

然而，中药并非无毒，其毒性的产生与炮制，配伍，用量等有关。中药毒性学领域至今无统一的毒性分级定量标准。历代本草一重要毒性对人体损害程度，将其分为了大毒、有毒、小毒三级，或加微毒一级。

The aim of this study was to investigate the ameliorative effect of ethanol extracts from Polypodium coronans on osteoporosis in ovariectomized rats and to evaluate the safety by acute toxicity, subchronic toxicity (90 days), reproductions toxicity and genotoxicity.

本研究目的主要是在探讨申姜酒精粗萃物对去卵巢大鼠诱发骨质疏松症之改善作用，并进一步利用急毒性试验、长期餵食毒性性验、生殖毒性试验和初步基因毒性试验来评估 PCE 对动物体的安全性。

Object: The project is on the basis of chronic alcoholic myopathy model of rat, to dynamically observe the change of NF-κB and MMP-2, MMP-9 in muscle cell, observe the function in the mechanism of alcohol myopathy, move forward a single step to explain the pathogenesy of this disease from gene and protein leve. We also provide a helpful platform for other metabolic myopathy. Methods:(1) 80 health, male, Sprague-Dawley rats(weight 180~200g), were chosen to sep up the CAM rat myopathy model ,to observe the rat bodyweight, the change of praxiology and the patho-change of muscle tissue.

目的：本实验旨在建立大鼠慢性酒精中毒性肌病模型的基础上，动态观察NF-κB及MMP-2、MMP-9在酒精中毒性肌病发展中的表达、变化情况，探讨其在慢性酒精中毒性肌病发病过程中的作用，从基因和蛋白水平进一步阐述该病发病机制，为慢性酒精中毒性肌病的临床防治提供理论依据，同时对于其他代谢性肌病的研究也提供一个平台。

Some studies showed that SPs display toxicity to wildlife and human nervous systems. It may cause acute and chronic neurotoxicity to mammal, and the stereoisomeric structure of SPs affects mammals neurotixicity. There was some enantioselectivity of SPs in acute and chronic neurotoxicity to mammal.

已有研究结果显示拟除虫菊酯类农药对非靶标野生动物和人类的神经系统有一定的毒性作用，其对哺乳动物的神经毒性主要表现为急性和慢性神经毒性，而且其毒性作用与拟除虫菊酯类农药的立体结构相关，有一定的对映体选择性差异。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。