内酰胺

All transition states in the assisted aminolysis are 35—70 kJ/mol lower than those for the non-assisted reaction.

研究结果还表明：水分子的参与有利于N-甲基b-磺内酰胺的氨解反应，它能够大大的降低反应能垒，降低值约为35—70 kJ/mol。

The aminolysis and the effect of water on the aminolysis processes of n -methyl β-sultam have been studied using density functional theory method at the B3LYP/6-31G* level.

结果表明，N-甲基b-磺内酰胺的氨解反应有两条反应通道：一条是S-C键断裂生成产物P1，另一条是S-N键断裂生成产物P2。

To the containers of each medium, transfer aseptically a quantity of -lactamase sufficient to inactivate the amount of antibiotic in the specimen under test.

向每一种培养基的容器中，以无菌操作转移足够灭活供试样品中所存在抗生素的-内酰胺酶。

Traditional natural isolation, mutation and selection, rational screening and protoplast fusion have made a great progress in the improvement of both Penicillium chrysogenum and Cephalosporium acremonium, two main industrial strains for production of P-lactam antibiotics.

在增加产量和大幅度地降低生产成本方面，最主要的β-内酰胺抗生素生产菌，产黄青霉和顶头孢霉(Acremonium chrysogenum or Cephalosporium acremonium)的菌种改良和发酵工艺的优化得到卓有成效的发展。

Objective To evaluate the reliability of a new selective chromogenic agar medium, ChromID ESBL, for detection of extended-spectrum beta-lactamases-producing Enterobacteriaceae.

目的 评估新的产色培养基ChromID ESBL在检测产超广谱β-内酰胺酶肠杆菌科细菌中的可靠性。

β-lactam antibiotics is still the most common drug causing DAIN in China, which is followed by autipyretic anelgesics.

目前导致DAIN的药物仍以β内酰胺类抗生素最为常见，其次为解热镇痛类药物，喹诺酮类抗生素相关性AIN较前增多。

In the second part of this thesis, a formal [2+2] cycloaddition ketenes and dialkyl azodicarboxylates was studied. We found that by adjusting the substituents in the diazenes, the reaction mode can be completely switched, and furnish four-membered-ring products, aza-b-lactams, the enantioselectivity was up to 91%.

经研究发现，通过对偶氮化合物取代基团的改变，我们可以实现[4+2]环加成反应到[2+2]环加成反应的转变，在手性氮杂环卡宾的作用下，对具有各种取代基的烯酮都可以很好的产率得到氮杂b-内酰胺，其对映选择性最高可以达到91%。

Here is the summary of currently research of metallo-β-lactamase genes,carried by integron in Pseudomonas aeruginosaincluding IMP,VIM,SPM,and GIM.

本文就铜绿假单胞菌中整合子携带的金属β-内酰胺酶基因IMP、VIM、SPM和GIM的研究进展作一综述。

Objective To explore the risk factors of nosocomial hematosepsis caused by extended spectrum β-lactamases positive E.

目的探讨急性白血病并发超广谱β-内酰胺酶阳性大肠杆菌败血症的相关因素及护理。

Objective To estimate the occurrence of derepressed hyperproduction AmpC β-lactamases,extended-spectrum β-lactamasesand dual enzyme expression ,as well as drug resistance profile in Enterobacter cloacaeisolates at large hospitals in Wuhan.

目的 了解近两年武汉地区四家教学医院院内感染阴沟肠杆菌耐药现状，以及去阻遏持续高产AmpC酶和超广谱β-内酰胺酶及同时表达这两类酶的发生率。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新