Results 31 to 40 of about 570,681 (325)

Structural and Biochemical Analysis of OrfG: The VirB8-like Component of the Conjugative Type IV Secretion System of ICESt3 From Streptococcus thermophilus

open access: yesFrontiers in Molecular Biosciences, 2021
Conjugative transfer is a major threat to global health since it contributes to the spread of antibiotic resistance genes and virulence factors among commensal and pathogenic bacteria.
Julien Cappele   +9 more
doaj   +1 more source

Temporal evolution of photorefractive double phase-conjugate mirrors [PDF]

open access: yes, 1993
We present wave-optics calculations of the temporal and spatial evolution from random noise of a double phase-conjugate mirror in photorefractive media that show its image exchange and phase-reversal properties.
Engin, Doruk   +3 more
core   +1 more source

Transfer of antibiotic resistance in Staphylococcus aureus [PDF]

open access: yes, 2017
Staphylococcus aureus is a serious human pathogen with remarkable adaptive powers. Antibiotic-resistant clones rapidly emerge mainly by acquisition of antibiotic-resistance genes from other S. aureus strains or even from other genera.
Haaber, Jakob   +2 more
core   +1 more source

Complex conjugation supermap of unitary quantum maps and its universal implementation protocol

open access: yes, 2019
A complex conjugation of unitary quantum map is a second-order map (supermap) that maps a unitary operator $U$ to its complex conjugate $U^*$. First, we present a deterministic quantum protocol that universally implements the complex conjugation supermap
Miyazaki, Jisho   +2 more
core   +1 more source

Capture of mobile genetic elements following intercellular conjugation promotes the production of ST11-KL64 CR-hvKP

open access: yesMicrobiology Spectrum
Sequence type (ST)11 carbapenem-resistant hypervirulent Klebsiella pneumoniae (CR-hvKP) can cause life-threatening infections and is therefore of global concern.
Shanshan Huang   +11 more
doaj   +1 more source

Real holomorphic curves and invariant global surfaces of section [PDF]

open access: yes, 2015
In this paper we prove that a dynamically convex starshaped hypersurface in $\mathbb{C}^2$ which is invariant under complex conjugation admits a global surface of section which is invariant under conjugation as well.
Frauenfelder, Urs, Kang, Jungsoo
core   +2 more sources

Variation on a theme; an overview of the Tn916 / Tn1545 family of mobile genetic elements in the oral and nasopharyngeal streptococci.

open access: yesFrontiers in Microbiology, 2014
The oral and nasopharyngeal streptococci are a major part of the normal microbiota in humans. Most human associated streptococci are considered commensals however a small number of them are pathogenic, causing a wide range of diseases including oral ...
Francesco eSantoro   +2 more
doaj   +1 more source

Folic acid conjugated with serum albumin for nano- and submicron delivery systems for applications in therapy and diagnostics [PDF]

open access: yesExploration of Drug Science
Folic acid (FA) residue is a well-known and widely spread targeting ligand, or biovector, used as a component in engineering artificial nanosized and submicron particles (NSPs) to target various cells and treat a variety of diseases that are associated ...
Maria G. Gorobets   +5 more
doaj   +1 more source

Dominant Bacterial Phyla from the Human Gut Show Widespread Ability To Transform and Conjugate Bile Acids

open access: yesmSystems, 2021
Gut bacteria influence human physiology by chemically modifying host-synthesized primary bile acids. These modified bile acids, known as secondary bile acids, can act as signaling molecules that modulate host lipid, glucose, and energy metabolism and ...
L. N. Lucas   +7 more
doaj   +1 more source

Quaternionic Hyperbolic Fenchel-Nielsen Coordinates

open access: yes, 2018
Let $Sp(2,1)$ be the isometry group of the quaternionic hyperbolic plane ${{\bf H}_{\mathbb H}}^2$. An element $g$ in $Sp(2,1)$ is `hyperbolic' if it fixes exactly two points on the boundary of ${{\bf H}_{\mathbb H}}^2$.
Gongopadhyay, Krishnendu   +1 more
core   +1 more source

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