نتایج جستجو برای: رتبهبندی qs

تعداد نتایج: 3143  

Journal: :'A Jamiy: Jurnal Bahasa dan Sastra Arab 2022

This study aims to examine the letter Ba (ب) and its meaning in surah al-Baqarah. The is one of ma'ani letters whose may change at any time based on grammatical structure. A type qualitative research that descriptive nature makes source data form ba Arabic, secondary itself either ideas or interpretations sentences verses use (ب). results showed al-Baqarah means al-ilshaq among them QS/2: 2, 4,...

Journal: :Journal of infection in developing countries 2012
Sezgi Senturk Seyhan Ulusoy Gulgun Bosgelmez-Tinaz Aysegul Yagci

INTRODUCTION In the opportunistic pathogen Pseudomonas aeruginosa, the production of several virulence factors depends on quorum sensing (QS) involving N-acylhomoserine lactone signal molecules. In vitro studies have suggested that the QS system is crucial in the pathogenesis of P. aeruginosa. However, it is unclear whether QS systems of P. aeruginosa play the same role during infections. MET...

2016
Vimal B. Maisuria Yossef Lopez-de Los Santos Nathalie Tufenkji Eric Déziel

Bacteria have evolved multiple strategies for causing infections that include producing virulence factors, undertaking motility, developing biofilms, and invading host cells. N-acylhomoserine lactone (AHL)-mediated quorum sensing (QS) tightly regulates the expression of multiple virulence factors in the opportunistic pathogenic bacterium Pseudomonas aeruginosa. Thus, inhibiting QS could lead to...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2007
Stephen P Diggle Andy Gardner Stuart A West Ashleigh S Griffin

The term quorum sensing (QS) is used to describe the communication between bacterial cells, whereby a coordinated population response is controlled by diffusible molecules produced by individuals. QS has not only been described between cells of the same species (intraspecies), but also between species (interspecies) and between bacteria and higher organisms (inter-kingdom). The fact that QS-bas...

Journal: :PLoS Pathogens 2008
Hui Liu Sarah J. Coulthurst Leighton Pritchard Peter E. Hedley Michael Ravensdale Sonia Humphris Tom Burr Gunnhild Takle May-Bente Brurberg Paul R. J. Birch George P. C. Salmond Ian K. Toth

Quorum sensing (QS) in vitro controls production of plant cell wall degrading enzymes (PCWDEs) and other virulence factors in the soft rotting enterobacterial plant pathogen Pectobacterium atrosepticum (Pba). Here, we demonstrate the genome-wide regulatory role of QS in vivo during the Pba-potato interaction, using a Pba-specific microarray. We show that 26% of the Pba genome exhibited differen...

Journal: :Annual review of phytopathology 2003
Susanne B Von Bodman W Dietz Bauer David L Coplin

Quorum sensing (QS) allows bacteria to assess their local population density and/or physical confinement via the secretion and detection of small, diffusible signal molecules. This review describes how phytopathogenic bacteria have incorporated QS mechanisms into complex regulatory cascades that control genes for pathogenicity and colonization of host surfaces. Traits regulated by QS include th...

2004
Derek Anderson Marjorie Skubic

Robot skill acquisition can be conceptualized as a task of identifying patterns in a spatio-temporal sensory feature space. Skills can be mathematically learned through identifying mappings from sensory signals into Qualitative States (QS), construction of a QS skill automaton, and the detection of motor or output commands that transition the model from the present QS to the next QS. In this pa...

Journal: :Antimicrobial agents and chemotherapy 2008
Allison Adonizio Kok-Fai Kong Kalai Mathee

Quorum sensing (QS) is a key regulator of virulence and biofilm formation in Pseudomonas aeruginosa and other medically relevant bacteria. Aqueous extracts of six plants, Conocarpus erectus, Chamaesyce hypericifolia, Callistemon viminalis, Bucida buceras, Tetrazygia bicolor, and Quercus virginiana, were examined in this study for their effects on P. aeruginosa virulence factors and the QS syste...

Journal: :Trends in microbiology 2012
Stuart A West Klaus Winzer Andy Gardner Stephen P Diggle

Two hypotheses, termed quorum sensing (QS) and diffusion sensing (DS), have been suggested as competing explanations for why bacterial cells use the local concentration of small molecules to regulate numerous extracellular behaviours. Here, we show that: (i) although there are important differences between QS and DS, they are not diametrically opposed; (ii) empirical attempts to distinguish bet...

Journal: :Magyar tudomány 2021

A QS-rangsor előrejelezhetősége a Scopus és SciVal adatai alapján hazai intézmények tükrében • The Predictability of QS Ranking Based on and Data through the Lens Hungarian Institutions

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