نتایج جستجو برای: رتبهبندی qs

تعداد نتایج: 3143  

Journal: :iranian journal of microbiology 0
saeed hemati clinical microbiology research center, department of microbiology, faculty of medicine, ilam university of medical sciences, ilam, ir iran. farid azizi-jalilian clinical microbiology research center, department of microbiology, faculty of medicine, ilam university of medical sciences, ilam, ir iran. iraj pakzad clinical microbiology research center, department of microbiology, faculty of medicine, ilam university of medical sciences, ilam, ir iran. morovat taherikalani clinical microbiology research center, department of microbiology, faculty of medicine, ilam university of medical sciences, ilam, ir iran. abbas maleki clinical microbiology research center, department of microbiology, faculty of medicine, ilam university of medical sciences, ilam, ir iran. sajedeh karimi clinical microbiology research center, department of microbiology, faculty of medicine, ilam university of medical sciences, ilam, ir iran.

introduction: pseudomonas aeruginosa is a gram-negative bacterium that considered as important opportunistic human pathogen. one of the mechanisms that help bacteria to tolerate survival in adverse conditions and resistance to antibiotics is biofilm formation through quorum sensing (qs) signals and toxin-antitoxin (ta) systems. qs and ta are two systems that have important roles in biofilm form...

Journal: :International journal of sport nutrition and exercise metabolism 2013
Denis M Pelletier Guillaume Lacerte Eric D B Goulet

Lately, the effect of quercetin supplementation (QS) on endurance performance (EP) and maximal oxygen consumption (VO2max) has been receiving much scientific and media attention. Therefore, a meta-analysis was performed to determine QS's ergogenic value on these variables. Studies were located with database searches (PubMed and SPORTDiscus) and cross-referencing. Outcomes represent mean percent...

Journal: :Artificial life 2012
Benjamin E. Beckmann David B. Knoester Brian D. Connelly Christopher M. Waters Philip K. McKinley

Quorum sensing (QS) is a collective behavior whereby actions of individuals depend on the density of the surrounding population. Bacteria use QS to trigger secretion of digestive enzymes, formation and destruction of biofilms, and, in the case of pathogenic organisms, expression of virulence factors that cause disease. Investigations of mechanisms that prevent or disrupt QS, referred to as quor...

Journal: :Natural products chemistry & research 2016
Daming Zhu Wenbin Tuo

Copyright: © 2015 Zhu D, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. QS-21 is one of the active fractions of the bark of Chilean tree, Quillaja saponaria, purified using a reverse-phase chromatograp...

محمد نمازی, مصطفی عظیمی بیدگلی

هدف اصلی این تحقیق، تعیین معیارهای کلیدی ارزیابی عملکرد، مربوط به هر یک از منظرهای ارزیابیمتوازن ) BSC (، در شرکتهای پذیرفته شده در بورس اوراق بهادار تهران به تفکیک نوع فعالیت و بر اساسطبقهبندی گروه صنایع میباشد. پس از تعیین، معیارهای به دست آمده بر اساس الگوی "فرآیند تحلیل سلسلهمراتبی") AHP (، توسط آزمودنیها رتبهبندی میشوند. پس از بکارگیری AHP ، بین رتبههای موجود قبل ازاستفاده از این الگو، مقا...

2010
Yun Cai Rui Wang Mao-Mao An Bei-Bei Liang

Influence of iron-depletion on twitching motility and quorum sensing (QS) system in P. aeruginosa was evaluated. The results demonstrated iron-depletion can retard biofilm formation and increase the twitching motility and expression of QS-related genes, suggesting a potential interaction between twitching motility and QS system in P. aeruginosa biofilm formation.

2012
Sina Reulecke Steffen Schulz Andreas Voss

The immature autonomic nervous system (ANS) in premature infants regulates heart rate (HR) and respiration different during quiet sleep (QS) and active sleep (AS). Little information is available about ANS regulation in these subjects. The aim of this study was to investigate changes in autonomic regulation and cardiorespiratory coupling during AS and QS in five very preterm neonates with gesta...

2016
J. E. Swatton P. W. Davenport E. A. Maunders J. L. Griffin K. S. Lilley M. Welch Tom Coenye

The macrolide antibiotic, azithromycin (AZM), has been reported to improve the clinical outcome of cystic fibrosis patients, many of whom are chronically-infected with Pseudomonas aeruginosa. However, the highest clinically-achievable concentrations of this drug are well-below the minimum inhibitory concentration for P. aeruginosa, raising the question of why AZM exhibits therapeutic activity. ...

2018
Byoung Sik Kim Song Yee Jang Ye-ji Bang Jungwon Hwang Youngwon Koo Kyung Ku Jang Dongyeol Lim Myung Hee Kim Sang Ho Choi

Pathogenic Vibrio species cause diseases in diverse marine animals reared in aquaculture. Since their pathogenesis, persistence, and survival in marine environments are regulated by quorum sensing (QS), QS interference has attracted attention as a means to control these bacteria in aquatic settings. A few QS inhibitors of Vibrio species have been reported, but detailed molecular mechanisms are ...

2007
P. Haensel

— If strange quark matter (SQM) is the true ground state of hadronic matter, then conversion of neutron stars (NS) into quark stars (QS) could release some 10 erg. We describe a scenario of burning of a NS into a hot, differentially rotating QS. Emission of released non-baryonic energy through the QS surface is discussed. The rôle of magnetobuoyancy of SQM is mentioned. The outflow of γee lasti...

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