Results 11 to 20 of about 4,391,993 (273)

Structure and dynamics of the E. coli chemotaxis core signaling complex by cryo-electron tomography and molecular simulations [PDF]

open access: yes, 2020
To enable the processing of chemical gradients, chemotactic bacteria possess large arrays of transmembrane chemoreceptors, the histidine kinase CheA, and the adaptor protein CheW, organized as coupled core-signaling units (CSU). Despite decades of study,
Cassidy, Keith   +8 more
core   +1 more source

Molecular ferroelectric contributions to anomalous hysteresis in hybrid perovskite solar cells [PDF]

open access: yes, 2014
We report a model describing the molecular orientation disorder in CH3NH3PbI3, solving a classical Hamiltonian parametrised with electronic structure calculations, with the nature of the motions informed by ab-initio molecular dynamics.
Anderson P. W.   +4 more
core   +3 more sources

The simulation of molecular clouds formation in the Milky Way [PDF]

open access: yes, 2012
Using 3D hydrodynamic calculations we simulate formation of molecular clouds in the Galaxy. The simulations take into account molecular hydrogen chemical kinetics, cooling and heating processes.
A. M. Sobolev   +88 more
core   +1 more source

Fine- and hyperfine-structure effects in molecular photoionization: II. Resonance-enhanced multiphoton ionization and hyperfine-selective generation of molecular cations [PDF]

open access: yes, 2016
Resonance-enhanced multiphoton ionization (REMPI) is a widely used technique for studying molecular photoionization and producing molecular cations for spectroscopy and dynamics studies. Here, we present a model for describing hyperfine-structure effects
Germann, Matthias, Willitsch, Stefan
core   +2 more sources

GLP-1 receptor agonism ameliorates hepatic VLDL overproduction and de novo lipogenesis in insulin resistance

open access: yesMolecular Metabolism, 2014
Background/objectives: Fasting dyslipidemia is commonly observed in insulin resistant states and mechanistically linked to hepatic overproduction of very low density lipoprotein (VLDL).
Jennifer Taher   +9 more
doaj   +1 more source

The infra-red spectrum and molecular structure of HNCS [PDF]

open access: yes, 1950
From an examination of the microwave spectra of four isotopic species of isothiocyanic acid, Beard and Dailey (1) recently obtained the following values for the molecular parameters in the ground vibrational ...
Badger, Richard M., Jones, L. H.
core   +1 more source

Metabolic reconstruction identifies strain‐specific regulation of virulence in Toxoplasma gondii

open access: yesMolecular Systems Biology, 2013
Increasingly, metabolic potential is proving to be a critical determinant governing a pathogen's virulence as well as its capacity to expand its host range. To understand the potential contribution of metabolism to strain‐specific infectivity differences,
Carl Song   +6 more
doaj   +1 more source

Potassium trihydrogen dioxalate dihydrate (KTO) nonlinear optical (NLO) single crystal for optical limiting application

open access: yesResults in Physics, 2023
In nonlinear optics, optical power limiting (OPL) compounds are known to be an important class of materials because it has the ability to protect the optical sensor components as well as human eyes from the abrupt intense laser power. Here, we have grown
Ramki Chakaravarthy   +5 more
doaj   +1 more source

Distinctive dielectric properties of nematic liquid crystal dimers [PDF]

open access: yes, 2017
We provide an overview of the effect of the molecular structure on the dielectric properties of dimers exhibiting nematic and twist-bend nematic phases with special focus on how the conformational distribution changes are reflected by the dielectric ...
de la Fuente, Maria del Rosario   +7 more
core   +2 more sources

Interplay of buried histidine protonation and protein stability in prion misfolding

open access: yesScientific Reports, 2017
Misofolding of mammalian prion proteins (PrP) is believed to be the cause of a group of rare and fatal neurodegenerative diseases. Despite intense scrutiny however, the mechanism of the misfolding reaction remains unclear.
Anatoly Malevanets   +10 more
doaj   +1 more source

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