Results 101 to 110 of about 855,474 (292)

Structure and binding in halide perovskites: Analysis of static and dynamic effects from dispersion-corrected density functional theory

open access: yesAPL Materials, 2019
We investigate the impact of various levels of approximation in density functional theory calculations for the structural and binding properties of the prototypical halide perovskite MAPbI3. Specifically, we test how the inclusion of different correction
H. Beck, C. Gehrmann, D. A. Egger
doaj   +1 more source

Reversal of Clar's Aromatic‐Sextet Rule in Ultrashort Single‐End‐Capped [5,5] Carbon Nanotubes

open access: yesChemistryOpen, 2020
The three‐fold HOMO‐LUMO gap oscillation, typical of finite length armchair carbon nanotubes (CNT), has a major effect on the magnetic response of ultrashort, single‐end‐capped [5,5] carbon nanotubes to a perturbing magnetic field parallel to the main ...
Dr. Guglielmo Monaco   +2 more
doaj   +1 more source

Point transformations applied to density-functional calculations

open access: yesPhysical Review A, 1990
The method of point transformations enables us to generate an unknown wave function ${\ensuremath{\Psi}}_{\ensuremath{\rho}}$${(\mathrm{{}\mathrm{r}}_{k}$}) from a given electron density \ensuremath{\rho}(r) based on a reference wave function ${\ensuremath{\Psi}}_{0}$${(\mathrm{{}\mathrm{r}}_{k}$}) initially chosen for the system.
openaire   +2 more sources

Wavelets for Density-Functional Theory and Post-Density-Functional-Theory Calculations

open access: yes, 2011
We give a fairly comprehensive review of wavelets and of their application to density-functional theory (DFT) and to our recent application of a wavelet-based version of linear-response time-dependent DFT (LR-TD-DFT). Our intended audience is quantum chemists and theoretical solid-state and chemical physicists.
Natarajan, Bhaarathi   +3 more
openaire   +2 more sources

Theory of melting at high pressures: Amending Density Functional Theory with Quantum Monte Carlo

open access: yes, 2013
We present an improved first-principles description of melting under pressure based on thermodynamic integration comparing Density Functional Theory (DFT) and quantum Monte Carlo (QMC) treatments of the system.
Desjarlais, M. P.   +2 more
core   +1 more source

AAA+ protein unfoldases—the Moirai of the proteome

open access: yesFEBS Letters, EarlyView.
AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley   +1 more source

Convergence and pitfalls of density functional perturbation theory phonons calculations from a high-throughput perspective

open access: yes, 2018
The diffusion of large databases collecting different kind of material properties from high-throughput density functional theory calculations has opened new paths in the study of materials science thanks to data mining and machine learning techniques ...
Gonze, Xavier   +3 more
core   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

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