نتایج جستجو برای: lactamases has been prevailed among bacteria

تعداد نتایج: 4193185  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1382

‏‎despite the different criticisms on contrastive analysis it has been proved that the results of it(when processed) can be useful in a tefl environment, specially at the level of phonology.this study is an attempt to compare and contrast the sound systems of kurdish and english for pedagogical aims.the consonants,vowels,stress and intonation of the two languages are described by the same model...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1381

deposite the different criticisms on contrastive analysis it has been proved that the results of it(when processed)can be usuful in a tefl environment,specially at the level of phonology.this study is an attempt to compare and contrast the sound systems of kurdish and english for pedagogical aims. the consonants,vowels,stress and intonation of the twolanguages are described by the same model-ta...

Journal: :archives of clinical infectious diseases 0
hossein goudarzi department of microbiology, school of medicine, shahid beheshti university of medical sciences, tehran, ir iran arezou taherpour department of microbiology, kurdistan university of medical sciences, sanandaj, ir iran fatemeh fallah department of microbiology, school of medicine, shahid beheshti university of medical sciences, tehran, ir iran bita pourkaveh infectious diseases and tropical medicine research center, shahid beheshti university of medical sciences, tehran, ir iran soroor erfanimanesh department of microbiology, school of medicine, tehran university of medical sciences, tehran, ir iran ali hashemi department of microbiology, school of medicine, shahid beheshti university of medical sciences, tehran, ir iran; corresponding author: ali hashemi, department of microbiology, school of medicine, shahid beheshti university of medical sciences, koodakyar st., tabnak blv., yaman av., chamran highway, p. o. box: 1985717443, tehran, ir iran. tel: +98-2123872556; +98-9122947439, e-mail:

the nosocomial infections, caused by multi-drug resistant bacteria, are the most important cause of mortality throughout the world. one important mechanism against beta-lactam antibiotics is the production of beta-lactamases. enterobacteriaceae and non-fermentative bacteria, like pseudomonas aeruginosa and acinetobacter baumannnii may produce these enzymes. currently, there is no vaccine to pre...

Noroozi, Jamileh, Zargar, Mohsen , Zomorrodi, Atousa,

Background: The urinary tract infection is the secondary most common human infection. Colon bacteria, including Klebsiella pneumonia, are the main cause of urinary tract infections. The occurrence of the antibiotic resistance is a major problem in the treatment of infections. Beta- lactamases and efflux pumps constitute the major defense mechanisms of antibiotic resistance of Klebsiella pneumon...

2013
Juan-Carlos Galán Fernando González-Candelas Jean-Marc Rolain Rafael Cantón

Antibiotics and antibiotic resistance determinants, natural molecules closely related to bacterial physiology and consistent with an ancient origin, are not only present in antibiotic-producing bacteria. Throughput sequencing technologies have revealed an unexpected reservoir of antibiotic resistance in the environment. These data suggest that co-evolution between antibiotic and antibiotic resi...

Journal: :Angewandte Chemie 2007
Hequan Yao Min-kyung So Jianghong Rao

b-Lactamases are an important family of bacterial enzymes for research in bacterial infection and biotechnology. Bacterial resistance to antibiotics is becoming a growing global health problem, and bacteria expressing b-lactamases are resistant to b-lactam antibiotics because b-lactamases efficiently hydrolyze b-lactam antibiotics such as penicillins and cephalosporins. Rapid and sensitive dete...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده ادبیات و علوم انسانی 1392

the purpose of this study is to investigate and explore the causes of identity crisis as one of the debilitating consequences of colonial project after the withdrawal of colonial power. in order to do justice to the full-length severity of displacement that was the fruit of indentureship, v. s. naipauls west indian epic, a house for mr biswas, has been scrutinized with the main focus being the ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی عمران 1391

in this study, scour of mashkid bridge pier located in mashkid river of saravan county has been studied and to measure the scour rate, the numerical model hec-ras 4.0 has been used. upon selection of mashkid river as the case study and whereas the studied zone is important with respect to the climatic conditions and showery monsoon raining and flowing the great and destructive floodwaters, ther...

Journal: :IEEE Computer 2022

Insurrections are nothing new in U.S. history. But social media adds a twist.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت معلم تهران - دانشکده علوم 1370

determination of uranium in natural water and complex solutions using ion exchange chromatography: a combined procedure using ion exchange chromatography and uv-vis spectrophotometry techniques has been developed to measure uranum in natural water and complex solutions. after conditicing , one hundred milli liters of sample solutions have been passed through an ion exchange column,pachked with ...

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