试验物

RESULTS : The concentration of gardenoside and chlorogenic acid were 2.52% and 0.08%, respectively.

结果：测得水提物中栀子苷和绿原酸的含量分别为2.52％和0.08％，试验共对13种化合物进行了结构分析，其中2种尚未见报道。

The experiment studied the effects of aminoacid chelates on growth and quality of crucian carp.

试验研究了氨基酸微量元素螯合物对异育银鲫生长及其品质的影响。

objective to analyze the drug resistance of staphylococcus aureusand provide suggestion for clinical rational use of antibiotics.methods secretion of those neonates suffered primary skin soft tissue infection and admitted during june,2005 to december,2007 was cultured and 113 strains of staphylococcus aureus were detected.we used k-b diffusion methods to determine their susceptibility to the common used antibiotics.results resistance rates of staphylococcus aureus to ampicillin/sulbactam,penicillin-g and cefazolin were 14.2%,40.7%and 6.2% respectively; there was no vancomycin-resistant strain.conclusion the resistance of staphylococcus aureus is not a serious problem in neonatal dermatic soft tissue infection.local treatment is the major approach in clinic,while general anti-infection consisting mainly of penicillin and first generation cephalosporin is chosen to avoid resistance mutation of staphylococcus aureus resulted from abuse of antibiotics.

多重聚合酶链反应快速鉴别葡萄球菌及。。。乳腺脓肿分离到葡萄球菌的鉴定和药敏。。。目的探讨金黄色葡萄球菌的耐药性，指导临床合理用药。方法对我院2005年6月至2007年12月新生儿原发性皮肤软组织感染患儿的分泌物进行培养，共检出金黄色葡萄球菌113株，并采用kb纸片扩散法对其进行常用抗生素的药敏试验。结果金黄色葡萄球菌对氨苄西林/舒巴坦、青霉素g及头孢唑啉的耐药率分别为14.2%、40.7%和6.2%，未发现耐万古霉素金黄色葡萄球菌。结论在新生儿皮肤软组织感染中金黄色葡萄球菌的耐药问题并不十分严重，临床处理应以局部为主，全身抗感染治疗宜以青霉素及i代头孢类抗生素为主，避免过度使用抗生素加速金葡菌的耐药突变。

DNA damage; chloridized disinfection by-products dichloroacetic acid; trichloroacetic acid; comet assay; RDPCR; p53 gene

DNA损伤；氯化消毒副产物；二氯乙酸；三氯乙酸；彗星试验；依赖随机化末端连接物PCR； p53基因

The process industrial synthsis of tert-dodecyl mercaptan from dodecylene and hydrogen sulfide with aluminium trichloride as catalyst was introduced, which consists of four units including the preparation of catalyst, purification of raw dodecylene, additive reaction and separation of reaction product.

介绍了以无水三氯化铝络合物为催化剂，十二烯和硫化氢直接加成法生产叔十二烷基硫醇的工业试验工艺。

The inducing of Dothiorella gregaria cell wall degradation product-oligosaccharides to the resistant index of poplar cell were studied with the poplar callus.

以杨树愈伤组织为试验材料，研究了杨树溃疡病菌细胞壁裂解物——低聚糖对杨树细胞有关抗病指标的诱导作用。

The antifungal activities of these materials were investigated and build foundation to develop low poison plant antifungal products. In experiment, polyphenols were extracted by reflux ectraction method which applyed petroleum ether to degrease and methyl alcohol solvent. Phenolic hydroxyl were examined and inspected by colour-developing reaction and the content of total polyphenols was determined by UV-spectrophotometry. Screening test were performed to the antifungal activities of polyphenol extraction by the tube dilution method to the selected ten pathogenic fungus such as Dothiorella gregaria, Rhizoctonia solani, Phyllosticta pirina, and the minimal inhibitory concentration were measured. The column chromatography and thin layer chromatography were applyed to separate and analyse cortex extracts of Dracaena cochinchinensi Lour.

实验部分采用以石油醚脱脂，甲醇为溶剂的回流提取法来提取植物多酚，用显色反应检识酚羟基；采用紫外分光光度法对多酚粗体物进行总多酚含量的测定；选取了聚生小穴壳菌、立枯丝核菌、梨叶点霉等10株常见农林业致病真菌，采用试管液基稀释法对多酚粗提取物进行了抗真菌活性筛选试验，并测定其最低抑菌浓度；采用柱层析法和薄层层析法对其中抑菌效果较好的龙血竭进行分离分析，根据其中3种化合物的光谱数据UV、IR、~(13C-NMR、1H-NMR和MS鉴定其结构。

Interactions within the rhizosphere are based on complex exchanges involving surrounding plant roots and are highly influenced by edaphic factors.

越来越多的试验表明，根分泌物在根与根、根与根际微生物间起着重要作用，并以其为媒介在植物与环境的相互作用中起着传递信息的作用。

After separation and purification of the expression products by FPLC,the electrophoric patterns of the various eluted peaks are not different with the culture products on SDS-PAGE.

产物经SDS-PAGE、免疫印迹试验与FPLC分离等分析，均表明该工程菌的共表达产物为AchR α-亚基结构域(相对分子质量为13×103)及其与GroES的络合物(23×103)。

Based on single factor experiment including esterify ing temperature, esterify ing time,and vitriol dosage,the conditions for esterify ing free fatty acid were optimized by response surface methodology and by determining acid value and content of V_E as evaluation indexes.

本研究在酯化温度、酯化时间和浓硫酸用量三个单因素试验的基础上，利用响应面分析法，以酯化后脱臭馏出物的酸价和VE含量为评价指标，对游离脂肪酸酯化条件研究。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。