We study the quantum summation (QS) algorithm of Brassard, HHyer, Mosca and Tapp, see 1], which approximates the arithmetic mean of a Boolean function deened on N elements. We present sharp error bounds of the QS algorithm in the worst-average setting with the average performance measured in the Lq norm, q 2 1; 1]. We prove that the QS algorithm with M quantum queries, M < N, has the worst-aver...

Biofilm formation causes persistent contamination of spoilage microorganisms, leading to serious economic losses in the aquatic processing industry. The antibacterial and anti-biofilm activity ten carvacrol, cinnamaldehyde, derivatives against two fish spoilers, Pseudomonas fluorescens Aeromonas salmonicida, were evaluated by minimum inhibitory concentration (MIC), crystal violet staining, exop...

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...

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...

Bacteria control gene expression by quorum sensing (QS) mechanism owing to producing small signal molecules associated with population density. Both gram-positive and gram-negative bacteria use QS manage various physiological characteristics, including bioluminescence, virulence expression, biofilm formation, antibiotic resistance. Impatience balsamina is a flowering, perennial annual herb indi...

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...

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.

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...

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. ...

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 ...