Results 21 to 30 of about 549,520 (273)

Characterizing conjugative plasmids from an antibiotic-resistant dataset for use as broad-host delivery vectors

open access: yesFrontiers in Microbiology, 2023
Human microbiome engineering is increasingly proposed as a way to modulate health outcomes. However, one of the current limitations to engineering microbial communities in situ is delivery of a genetic payload for introducing or modifying genes.
Héctor G. Loyola Irizarry   +1 more
doaj   +1 more source

Narrow-band optical filter through phase conjugation by nondegenerate four-wave mixing in sodium vapor [PDF]

open access: yes, 1981
An ultrahigh-Q tunable optical filter with a FWHM bandwidth of 41 MHz is demonstrated. The filtering is produced by nondegenerate phase conjugation through four-wave mixing in atomic-sodium vapor.
Gluck, Natalie S.   +2 more
core   +1 more source

Site Selective Antibody-Oligonucleotide Conjugation via Microbial Transglutaminase. [PDF]

open access: yes, 2019
Nucleic Acid Therapeutics (NATs), including siRNAs and AntiSense Oligonucleotides (ASOs), have great potential to drug the undruggable genome. Targeting siRNAs and ASOs to specific cell types of interest has driven dramatic improvement in efficacy and ...
Cui, Xianshu   +6 more
core   +1 more source

A purple odyssey: synthesis and structure of 3-amino-4-hydroxy-6-oxocyclohexa-2,4-dien-1-iminium chloride monohydrate

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2016
In the cation of the title hydrated molecular salt, C6H7N2O2+·Cl−·H2O, the six-membered ring shows unequal bond lengths consistent with delocalization of electrons over two separate 6π systems with single bonds between them.
M. John Plater, William T. A. Harrison
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

Differential Requirement for the Cell Wall Integrity Sensor Wsc1p in Diploids Versus Haploids

open access: yesJournal of Fungi, 2021
The primary role of the Cell Wall Integrity Pathway (CWI) in Saccharomyces cerevisiae is monitoring the state of the cell wall in response to general life cycle stresses (growth and mating) and imposed stresses (temperature changes and chemicals). Of the
Allison E. Hall   +2 more
doaj   +1 more source

Conjugation of injections by permutations [PDF]

open access: yes, 2010
Let X be a countably infinite set, and let f, g, and h be any three injective self-maps of X, each having at least one infinite cycle. (For instance, this holds if f, g, and h are not bijections.) We show that there are permutations a and b of X such ...
E.A. Bertram   +5 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

Foodborne Microbial Communities as Potential Reservoirs of Antimicrobial Resistance Genes for Pathogens: A Critical Review of the Recent Literature

open access: yesMicroorganisms, 2023
Antimicrobial resistance (AMR) is a global and increasing threat to human health. Several genetic determinants of AMR are found in environmental reservoirs, including bacteria naturally associated with widely consumed fermented foods.
Paola Zinno   +2 more
doaj   +1 more source

Authentication from matrix conjugation [PDF]

open access: yes, 2009
We propose an authentication scheme where forgery (a.k.a. impersonation) seems infeasible without finding the prover's long-term private key. The latter would follow from solving the conjugacy search problem in the platform (noncommutative) semigroup, i ...
Grigoriev, Dima, Shpilrain, Vladimir
core   +2 more sources

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