Based on toxicity mechanism, a QSAR model was established and used to explain the toxicity of organic chemicals to fathead minnow and Photobacterium phosphoreum, which showed good relationships with wide range of organic compounds.

根據(jù)毒性機(jī)理黄色一级AAAA片，從理論上推導(dǎo)出有機(jī)物的定量結(jié)構(gòu)—活性方程久久不免费视频1，并用來解釋有機(jī)物對(duì)呆鰷魚和發(fā)光菌的毒性久久久久久精品免费免费69九九，成功地闡述了有機(jī)物對(duì)水生生物的毒性機(jī)制在线加勒比无码专区，區(qū)分了有機(jī)物對(duì)不同生物的毒性的聯(lián)系和區(qū)別一级黄网，為有機(jī)物生物活性預(yù)測(cè)提供了新的思路。

The results indicate that the type and number of the substituents affect the toxicity of these compounds directly. A nitro group substitution increases the toxicity of the compounds, and on the contrary, an amido group substitution decreases their toxicity. For multi-nitrobenzenes, the toxicity of the o - or p -substituted nitrobenzene is bigger than that of the m -substituted one.

苯環(huán)上取代基的類型日韩人妻操操性生活、數(shù)目和取代位置直接影響到標(biāo)題化合物的毒性大小在线美女永久免费网站，強(qiáng)吸電子基如硝基會(huì)降低 Q -NO2和 E LUMO大小，使化合物毒性增強(qiáng)自拍偷拍1页，且鄰對(duì)位硝基取代的毒性高于間位取代日韩激情中文字幕在线看片；相反，給電子基團(tuán)氨基的存在則會(huì)使化合物的毒性降低另类图片第一页。

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.

在安全性評(píng)估方面在线。中文字幕，本計(jì)畫將進(jìn)行北美巨水鼠腺體之動(dòng)物毒性試驗(yàn)，含單一劑量急毒性及重覆劑量亞急毒性免费欧美在线，以及基因毒性試驗(yàn)99精品r视频在线观看。

In single acute toxicity test and joint toxicity test,the acute toxicity and joint toxicity of heavy metals Cu2+ and Cd2+ to paramecium was studied.

方法］通過單一急性毒性試驗(yàn)和聯(lián)合毒性試驗(yàn)，研究了金屬離子Cu2+和Cd2+對(duì)草履蟲的急性毒性和聯(lián)合毒性黄页网站视频在线看。

Based on history retrospective study and modern research, the paper expounded that the developing course of embryo toxicity of traditional Chinese medicine is from cyesis abstinence to inheritance toxicity and reproductive development toxicity, and overviewed the research of active components of traditional Chinese medicine in the domains of inheritance toxicity and reproductive development toxicity.

筆者通過對(duì)胚胎毒性中藥的歷史回顧和研究現(xiàn)狀分析jizz视频，闡述了中藥胚胎毒性由妊娠禁忌到遺傳毒性和生殖發(fā)育毒性的衍變發(fā)展過程以及中藥有效成分在遺傳和生殖發(fā)育毒性中的研究概況。

The toxicity of selected compounds and their binary mixtures of sodium dodecyl sulfate with three substituted aromatic compounds to photobacterium phosphoreum was investigated, respectively.

研究陰離子表面活性劑十二烷基硫酸鈉和苯酚、硝基苯1024欧美性爱、甲苯3種取代芳烴對(duì)發(fā)光菌的單一毒性新赏网在线一区二区，以及在等濃度配比條件下，SDS與這3種取代芳烴二元混合體系的聯(lián)合毒性效應(yīng)74色色网，并采用毒性單位免费A片大大片、相加指數(shù)、相似性參數(shù)和泥合毒性指數(shù)進(jìn)行毒性評(píng)價(jià)扁豆曰本熟妇不卡无码一、二区在线费看。

A comparative study on the joint toxicity of binary mixtures of anilines to Photobacterium phosphoreum and Daphnia magna

按器官系統(tǒng)分類人人操人色人人摸，可分為神經(jīng)毒性、眼毒性亚洲毛片在线一区二区、心臟毒性免费看无码A级毛片、肝臟毒性、腎臟毒性及生殖毒性等婷婷网色色图。

In this thesis, the acute lethal toxicity to Rana japonica tadpoles, the short-term phytotoxicity to Cucumis sativus and the population growth inhibition toxicity to Tetrahymena pyriformis of selected substituted phenols with multiple mechanisms of toxic action were compared and interspecies correlation was investigated.

本文比較了具有多種毒性作用機(jī)制的取代苯酚對(duì)兩棲動(dòng)物幼體的急性致死性毒性在线看日本黄色视频、對(duì)高等植物生長(zhǎng)的抑制毒性以及對(duì)原生動(dòng)物—四膜蟲的種群生長(zhǎng)抑制毒性，探討了這一類污染物的毒性作用機(jī)制日韩aⅴ先锋影音资源网，進(jìn)行了種間相關(guān)性研究麻豆av免费在线。

In conclusion, the hepatotoxicity of clivorine is caused by the hepatotoxic pyrrolic metabolites formed in vivo. CYP3A involved in the formation of pyrrolic metabolites and plays a key role in metabolism-induced hepatotoxicity of clivorine.

Clivorine的肝毒性是其在體內(nèi)形成的肝毒性吡咯代謝物所致，CYP3A參與了肝毒性吡咯代謝物的形成并在clivorine的代謝致毒方面發(fā)揮了關(guān)鍵性的作用亚洲欧美日韩另类，因此CYP3A的誘導(dǎo)劑和抑制劑可以影響肝毒性吡咯代謝物的形成又黄又粗又长一区二区视频，從而影響clivorine的肝毒性。

The chief results were summarized as follows: In the toxicities tests to aquatic animal in the room, the results showed that Deltamethrin and Lambda-cyhalothrin, which the actual toxicities in the 24 hours on fish, loaches and tadpoles all are above 100%, were the most high toxicity, and that Chlorpyrifos and Triazophos, which the actual toxicities in the 24 hours on them are bellow 54%, were the more high toxicity, and that Fipronil and Abamectin were relatively safe, which the actual toxicities in the 24 hours on them are 22%, and that Bisultap was completely safe, which the actual toxicities in the 24 hours on them are bellow 4%.

研究結(jié)果表明：溴氰菊酯久99久视频精选、高效氯氟氰菊酯對(duì)水生動(dòng)物的毒性最高久久久这里精品国产，對(duì)魚、泥鰍色妓女网站、蝌蚪24h急性毒性都為100％美女爽到高潮朝喷的视频4399，毒死蜱、三唑磷毒性次之欧美日韩国产黄色，對(duì)魚黄色网站在线免费。观看、泥鰍、蝌蚪24h急性毒性均在54％之上国产91精品专区，氟蟲腈人人操日韩超碰、阿維菌素較安全，對(duì)魚欧美亚洲图片小说、泥鰍精品欧美一区综合在线、蝌蚪24h急性毒性均在22％之下，殺蟲雙對(duì)水生動(dòng)物最安全国产精品强奸乱伦贵州，對(duì)魚国产日韩精品一区二区久久、泥鰍、蝌蚪24h急性毒性為4％以下。

genotoxic carcinogen：遺傳毒性致癌劑

Genotoxic activity 遺傳毒性作用 | Genotoxic carcinogen 遺傳毒性致癌劑 | Genotoxic effect 遺傳毒性效應(yīng)

chronic toxicity：慢性毒性

長(zhǎng)期用藥時(shí)由于藥物在體內(nèi)蓄積而逐漸發(fā)生的毒性稱為慢性毒性(chronic toxicity),常損害肝美女黄在线观看免费视频、腎、造血器官及內(nèi)分泌等器官的功能. 藥物的致癌(carcinogenesis)求手机在线看黄色视频的网站、致畸胎(teratogenesis)欧洲免费网站看黄、致突變(mutagenesis)作用屬于慢性毒性中的特殊毒性.

Toxic effect of Dichloromethane：二氯甲烷的毒性效應(yīng)

氰化物的毒性效應(yīng) Toxic effect of cyanides | 二氯甲烷的毒性效應(yīng) Toxic effect of Dichloromethane | 乙醇的毒性效應(yīng) Toxic effect of ethanol

Toxic effect of fusel oil：雜醇油的毒性效應(yīng)

甲醛的毒性效應(yīng) Toxic effect of formaldehyde | 雜醇油的毒性效應(yīng) Toxic effect of fusel oil | 氣體、煙霧和蒸氣的毒性效應(yīng) NOS Toxic effect of gases fumes and vapours

acute toxicity：急性毒性

短期內(nèi)過量用藥引起的毒性稱急性毒性(acute toxicity),多損害循環(huán)wwwzaixianavcom、呼吸及神經(jīng)系統(tǒng)功能. 長(zhǎng)期用藥時(shí)由于藥物在體內(nèi)蓄積而逐漸發(fā)生的毒性稱為慢性毒性(chronic toxicity),常損害肝激情的小说视频、腎、造血器官及內(nèi)分泌等器官的功能.

toxicity index：毒性指數(shù)

◎ NES713毒性指數(shù)(Toxicity Index) 這是英國海軍工程 NES標(biāo)準(zhǔn)中針對(duì)電纜材料燃燒時(shí)產(chǎn)生的氣體毒性規(guī)范,毒性是指對(duì)生物體結(jié)構(gòu)造成破壞或功能紊亂的一種性質(zhì),毒性指數(shù)是指材料燃燒時(shí)所產(chǎn)生的所有氣體的毒性總和表現(xiàn).

toxicological information：毒性毒性毒性毒性

Does not occur.不會(huì)產(chǎn)生 | 11. Toxicological Information 毒性毒性毒性毒性 | MUTAGENIC:誘變反應(yīng)誘變反應(yīng)誘變反應(yīng)誘變反應(yīng)

cytotoxic：細(xì)胞毒性

它們?cè)谂R床上的共同特點(diǎn)是:具有非細(xì)胞毒性和靶向性;具調(diào)節(jié)作用和細(xì)胞穩(wěn)定(cytostatic)性作用;臨床研究中不一定非達(dá)到劑量限制性毒性(DLT)和最大耐受劑量(MTD);毒性的作用范圍和臨床表現(xiàn)與細(xì)胞毒性(cytotoxic)藥物有很大的區(qū)別;

TEFs：毒性當(dāng)量因子

二亚洲免费视频日韩在线观看、戴奧辛的毒性當(dāng)量因子(TEFs)及毒性當(dāng)量濃度(TEQ)由於戴奧辛類化合物具有同源物,如何評(píng)估不同環(huán)境及生物體內(nèi)累積的戴奧辛類化合物所造成的毒性及影響很重要,因此世界衛(wèi)生組織(WHO)以毒性當(dāng)量因子(Toxic Equivalency Factors,

TEF：毒性當(dāng)量因子

二惡英的毒性與異構(gòu)體結(jié)構(gòu)有很大關(guān)系,各異構(gòu)體濃度的綜合毒性評(píng)價(jià)方法一般以TCDDs為基準(zhǔn),利用TCDDs的毒性當(dāng)量(TEQ)來表示各異構(gòu)體的毒性,稱之為毒性當(dāng)量因子(TEF),其它異構(gòu)體的毒性以相對(duì)毒性進(jìn)行評(píng)價(jià),其計(jì)量單位常采用ng-TEQ/Nm3,