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The chlorine dioxide disinfection solution was produced by the reaction between sodium chlorate and hydrochloric acid in chlorine dioxide generator.Filter membrane method was used to observe its efficacy in killing Escherichia coli in water and its influencing factors.

二氧化氯消毒液由二氧化氯发生器将氯酸钠与盐酸反应生成，采用滤膜法对其杀灭水中大肠杆菌的杀灭效果与影响因素进行了观察。

S extract had an inhibition effect against Sphaerotheca fuligenea,The inhibition rate was 100% when extract concentration was 20mg/mL and the inhibition rate got to 67.66% even at the concentration of 2.5mg/mL. The extract of E. humifusa had different preventive effects against four strains of S. fuliginea from four districts in Shanghai. The preventive effects on the Qibao and Baoshan were better than those of Nanhui and Qingpu. The microorganism inhibition experiment by filter papers indicated that the extract of E. humifusa had higher inhibition effect against bacteria than on pathogenic fungus. Diameters of the zone of inhibition of salmonellas, Echerichia coli and Staphylococcus aureus were 15.77mm, 12.27mm and 10.53mm respectively. The extract of E. humifusa had a certain effect against Colletotrichum lagenarium, Botrytis cinerea, Rhizoctomia solan and Pyricularia oryza but no effect against Helminthosporium maydis and Gibberella zea. The 4 cation exchange resins and ethanol deposition were used to isolate the active fractions from supernate after alkali deposition.

提取液对黄瓜白粉病菌体外分生孢子萌发抑制实验表明地锦提取液对黄瓜白粉病菌分生孢子的萌发有很好的抑制作用，抑制率随着地锦提取液浓度的增大而增高，当浓度为20mg/mL时，抑制率达到100%，即使在浓度为2.5mg/mL时，抑制率也达到了67.66%；室内盆栽苗期预防性实验表明了地锦提取液对上海4个不同地区的黄瓜白粉病菌均具有不同程度的抑制效果，对七宝和宝山地区的菌株抑制效果优于南汇和青浦地区的菌株；用滤纸片法测定了地锦提取液的抑菌谱，实验结果表明地锦提取液对供试的4种植物病原真菌：黄瓜炭疽病菌、黄瓜灰霉病菌、水稻纹枯病菌和水稻稻瘟病菌均具有一定的抑制效果，而对玉米小斑病菌和小麦赤霉病菌没有抑制效果，对供试的3种人类致病细菌沙门氏菌、大肠杆菌和金黄色葡萄球菌均具有很好抑菌效果，抑菌圈直径分别为：15.77mm， 12.27mm和10.53mm。

Results: 61 cases were all infected with single pathogenic bacterium, including 23 cases with staphylococci, 18 cases with Klebsiella, 14 cases with Escherichia coli and 6 cases with Pseudomonas ...

结果：61例均为单一菌种致病，包括葡萄球菌属23例，肺炎克雷伯菌18例，大肠埃希菌14例，绿脓杆菌6例。

Still another change to the experimental model: a sublethal dose of E coli was administered and the animals were observed.

对实验模型还进行了另一种变化：给动物注射亚致死剂量的大肠杆菌，并进行观察。

The regulation of gene expression is to have relations to the assembly of the DNA binding proteins which bind to DNA to initiate the transcription. Some of these proteins have the ability to promote bending or looping of DNA. The FIS protein regulates gene expression in Escherichia coli by this property of bending DNA. There are many researches to discover the mechanism of FIS protein binds to DNA. However the experiment data only show the supposititious results and figure out the model of FIS-DNA complex structure. This research uses molecular dynamics simulation to compute the detail of the interaction between FIS and DNA. We observed FIS prominently affects the DNA bending by the type of local bending. Analyzing the DNA structure properties, roll and slide, also demonstrates the local bending type and region. The hydrogen bonds between FIS and DNA are analyzed to compare with the experiment data. Finally we compute the binding free energy between FIS and DNA to estimate the result of simulation and compare with the value of λ-repressor-DNA complex.

基因的表现与结合於DNA促使DNA转录作用起始的DNA结合蛋白组装有关，一些这类的蛋白质具有促使DNA扭曲或将DNA形成环状的能力，FIS蛋白质即是藉由扭曲DNA的特性调控大肠杆菌基因的表现，目前已有很多的研究发现FIS与DNA结合的机转，然而这些实验的数据仅能显示推测性的结果，进而利用这些结果推论出FIS与DNA聚合体结构的模型，本研究利用分子动态模拟的方式计算FIS与DNA交互作用的细节，我们观察到FIS主要影响DNA的扭曲方式为DNA区域扭曲的类型，并且分析DNA结构特性roll与slide也指出扭曲方式为区域扭曲与其扭曲的区域，我们也分析FIS与DNA之间的氢键，并且与实验的资料作比较，最后我们计算FIS与DNA之间的结合自由能评估模拟的结果，并且计算出的值和λ-repressor与DNA聚合体结构的实验值作比较。

In order to compare the difference of antibiotic resistant model between two pig farms,antimicrobial susceptivity test were carried out to Escherichia coli by using the Kirby-Bauer method recommended by National Committee for Clinical Laboratory Standards.

按照美国临床实验室标准委员会推荐的Kirby-Bauer药敏纸片法，对从2个猪扬分离到的大肠杆菌进行了17种抗菌药物的敏感性测试。

The effect of N-bromosuccinimide on the activity of Escherichia coli arginyltRNA synthetase was studied.

用N-溴代丁二酰亚胺对大肠杆菌精氨酰tRNA合成酶中的五个色氨酸残基进行化学修饰研究，发现酶分子所含的五个色氨酸残基中有一个可以被。。。

A classic example in which discrimination between amino acids depends on the presence of tRNA is provided by the Ile-tRNA synthetase of E.

这里有一个经典的例子：E.coli中IIe-tRNA合成酶作用过程中，tRNA的存在决定了氨基酸之间的识别。

The results are as follows:(1) Emodin enhances the electrical and contractive activities of the smooth muscle cells in guinea pig taenia coli....

其促进平滑肌细胞电和收缩活动的作用与glybenclamide相似，而与四乙胺和BaCl2有明显区别。提示大黄素的作用机制与抑制细胞膜KATP等钾通道的活性相关。

Relationship between emodin concentration and intracellular [Ca2＋]I as well as kinetics of [Ca2＋]I in guinea pig taenia coli cells were studied.

利用Fluo－3荧光探针检测细胞内自由Ca2＋浓度([Ca2＋]I)，研究了大黄素升高豚鼠结肠带细胞[Ca2＋]I的量―效关系和动态变化特征，及GDP和胞外Ca2＋浓度对其的影响。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。