毒基

Objective To investigate the effects of methyl tertiary butyl ether on the FOS protein in central nervous system of the rats. Methods 54 SD healthy adult-rats weighed 180~220g were involved in this study.

目的 通过研究甲基叔丁基醚对大鼠中枢神经系统Fos蛋白的影响，探讨MTBE对中枢神经系统急性毒作用部位。

Gene coding for matrix protein (p15) of donkey leukocyte attenuated vaccine strain of equine infectious anemia virus was cloned from its proviral DNA obtained from the vaccine strain infected donkey leukocyte cultures,and expressed in E.coli.

从感染驴白细胞的马传贫驴白细胞弱毒疫苗株前病毒DNA中克隆了编码基质蛋白(p1 5 )的基因，并在大肠杆菌中进行了表达。

The results were as follows:1 The explants with two phyllomes(about 0.2-0.5mm in size )were found to be suitable for virus-free seedling culture , which were cultured on solid MS medium supplement with 6-BA,NAA and IAA ,The result indicated that the plantlet was over 30% after three months.

主要结果如下： 1。取带2个叶原基(长度约为0.2-0.5mm)的茎尖为外植体，在附加6-BA、IAA和NAA的MS培养基上进行3个月的培养，成苗率达30％以上。另外，在切取茎尖前对薯苗热疗(37℃)4周，在基本不影响成苗率的同时，可大幅度提高脱毒率。

Can improve the survival ratio of seeding. Culturing in hormone media can make meristem tip survive once time, and the result is better than two-time-cultivation.3、The meristem tip with two phyllomes(0.3-0.4mm in size)were found to suitable for virus-free seeding culture that were cut from aseptic seeding, which led to higher survival and virus-free ratio, up to 72.1%and 54.2%.

在培养基中添加椰汁、香蕉汁等有机添加物可以明显提高成苗率。3、采用二次剥离茎尖的方法，从无菌试管苗上切取带2个叶原基(大小0.3-0.4mm)茎尖分生组织培养，成苗率为72.1%，脱毒率为54.2%。

Current, the software of China that reduce toxin already became year of battalion to control 1.5 billion yuan industry, basically be the manufacturer cent such as lucky star, Kabasiji to feed.

目前，中国的杀毒软件已成为年营收15亿元的产业，主要为瑞星、卡巴斯基等厂商分食。

The sequences analysis indicated that complete open read frame of F gene of 3 isolates was 1662bp and encoded F protein of SS3 amino acids/There were 6 identically potential asparagine-linked glycosylation sites and the deduced amino acid sequence of the cleavage site region of F protein of the 3 NDV isolates that had the same amino acids pattern as velogenic strain was ~(112)R-R-Q-K/R-R-F~(117), which was accordant with the results of mean death time of chicken embryos and intracerebral pathogenicity index flCPI.

序列分析结果表明，所获得的3株分离株F基因完整的开放阅读框长度为1662bp，共编码F蛋白的553个氨基酸：QH3、HU和A4株均有相同的6个潜在的糖基化位点，其F基因的裂解位点为~(112)R-R-Q-K／R-R-F~(117)，符合强毒株裂解区氨基酸组成的特征，且与MDT和ICPI的测定结果相吻合。

In this thesis, Water Solubility, 1-Octanol/water Partition Coefficient, molecular Total Surface Area, Aqueous Activity Coefficient, Henry Law's Constant and gas chromatogram relative retention times for biphenyl and its 209 chlorinated congeners were studies with holographic QSAR techniques and highly predictive QSAR models were developed. An internal validation (cross-validation) and external validation were performed to evaluate the predictivity and robustness of the HQSAR models. Based on these highly predictive QSARs, the corresponding data of 5 properties of all these pollutants were presented.

应用简化的响应曲面分析来建立显著的预测模型，必须要考虑到空间立体因素的影响；基于分子模拟技术的三维QSAR技术能够建立显著的预测模型，并且有利于对毒性机理的理解；而基于分子全息的QSAR技术建立了具有高度预测能力的QSAR模型，组内交叉验证和组外预测等方法证明模型具有高度的预测能力和稳健性，可以对硝基芳烃这一类分子结构、体内代谢过程和致毒机理都很复杂的污染物进行定量预测。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。