Results 101 to 110 of about 4,481 (205)
Novel nonlinear wave equation: regulated rogue waves and accelerated soliton solutions [PDF]
, 2018 A new exactly solvable (1+1)-dimensional complex nonlinear wave equation exhibiting rich ana- lytic properties has been introduced. A rogue wave (RW), localized in space-time like Peregrine RW solution, though richer due to the presence of free parameters is discovered. This freedom allows to regulate amplitude and width of the RW as needed.
arxiv +1 more source
Signal to noise ratio in parametrically-driven oscillators [PDF]
Phys. Rev. E 84, 061121 (2011), 2011 Here we report a theoretical model based on Green's functions and averaging techniques that gives ana- lytical estimates to the signal to noise ratio (SNR) near the first parametric instability zone in parametrically- driven oscillators in the presence of added ac drive and added thermal noise.
arxiv +1 more source
Brucella abortus Encodes an Active Rhomboid Protease: Proteome Response after Rhomboid Gene Deletion
Microorganisms, 2022 Rhomboids are intramembrane serine proteases highly conserved in the three domains of life. Their key roles in eukaryotes are well understood but their contribution to bacterial physiology is still poorly characterized.
María Inés Marchesini +3 more
doaj +1 more source
H-loop Histidine Catalyzes ATP Hydrolysis in the E. coli ABC-Transporter HlyB [PDF]
Phys. Chem. Chem. Phys. 2013, 15, 15811-15815, 2013 Adenosine triphosphate (ATP)-binding cassette (ABC) transporters form a family of molecular motor proteins that couple ATP hydrolysis to substrate translocation across cell membranes. Each nucleotide binding domain of ABC-transporters contains a highly conserved H-loop Histidine residue, whose precise mechanistic role to motor functions has remained ...
arxiv +1 more source
Frontiers in Microbiology, 2019 Neisseria gonorrhoeae and Neisseria meningitidis release peptidoglycan (PG) fragments from the cell as the bacteria grow. For N. gonorrhoeae these PG fragments are known to cause damage to human Fallopian tube tissue in organ culture that mimics the ...
Ryan E. Schaub, Joseph P. Dillard
doaj +1 more source
Characterization of IsaA and SceD, Two Putative Lytic Transglycosylases of Staphylococcus aureus [PDF]
Journal of Bacteriology, 2007 ABSTRACT Bacterial cell wall peptidoglycan is a dynamic structure requiring hydrolysis to allow cell wall growth and division. Staphylococcus aureus has many known and putative peptidoglycan hydrolases, including two likely lytic transglycosylases. These two proteins, IsaA and SceD, were both found to have
Melanie R. Stapleton +8 more
openalex +4 more sources
Structural Analysis of PlyKp104, a Novel Phage Endoysin
CrystalsAntibiotic resistance has emerged as a critical global public health challenge, prompting increased interest in non-antibiotic antimicrobial strategies such as bacteriophage-derived endolysins.
Jung-Min Choi
doaj +1 more source
Toxin release mediated by the novel autolysin Cwp19 in Clostridium difficile
Microbial Cell, 2018 Clostridium difficile, also known as Clostriodioides difficile, is a Gram positive, spore-forming bacterium and a leading cause of antibiotic-associated diarrhea in nosocomial environments. The key virulence factors of this pathogen are two toxins, toxin
Imane El Meouche, Johann Peltier
doaj +1 more source
Strongly angle-dependent magnetoresistance in Weyl semimetals with long-range disorder [PDF]
Phys. Rev. B 96, 060201(R) (2017), 2017 The chiral anomaly in Weyl semimetals states that the left- and right-handed Weyl fermions, constituting the low energy description, are not individually conserved, resulting, for example, in a negative magnetoresistance in such materials. Recent experiments see strong indications of such an anomalous resistance response; however, with a response that ...
arxiv +1 more source
IUCrJMltG, a membrane-bound lytic transglycosylase, has roles in terminating glycan polymerization in peptidoglycan and incorporating glycan chains into the cell wall, making it significant in bacterial cell-wall biosynthesis and remodeling.
Gwan Hee Lee +7 more
doaj +1 more source