Results 51 to 60 of about 42,363,074 (398)

Singlet-triplet transition in a lateral quantum dot [PDF]

open access: yes, 2003
We study transport through a lateral quantum dot in the vicinity of the singlet-triplet transition in its ground state. This transition, being sharp in an isolated dot, is broadened to a crossover by the exchange interaction of the dot electrons with the
A. Kogan   +27 more
core   +1 more source

A Case-Crossover Study of Heat Exposure and Injury Risk in Outdoor Agricultural Workers

open access: yesPLoS ONE, 2016
Background Recent research suggests that heat exposure may increase the risk of traumatic injuries. Published heat-related epidemiological studies have relied upon exposure data from individual weather stations.
J. Spector   +7 more
semanticscholar   +1 more source

Computational approach to the study of thermal spin crossover phenomena [PDF]

open access: yesThe Journal of Chemical Physics, 2014
The key parameters associated to the thermally induced spin crossover process have been calculated for a series of Fe(II) complexes with mono-, bi-, and tridentate ligands. Combination of density functional theory calculations for the geometries and for normal vibrational modes, and highly correlated wave function methods for the energies, allows us to
Rudavskyi, Andrii   +4 more
openaire   +6 more sources

Considerations for Issues of Regression to the Mean and Contextual Effects in Clinical Trials for Pain in Rheumatic Diseases

open access: yesArthritis Care &Research, EarlyView.
Recently, there has been growing discussion about how to best assess pain in clinical trials in rheumatic diseases. Reliable measurement of pain outcomes is essential for accurately determining the effectiveness of treatments. Although pain intensity is the most common measure of change in pain trials, other pain‐related measures, such as pain ...
Yen T. Chen   +4 more
wiley   +1 more source

The Relationship between Chocolate Consumption and the Severity of Acne Lesions−A Crossover Study

open access: yesFoods
The aim of this study was to assess the relationship between the daily consumption of 50 g of chocolate with 85% cocoa content and the severity of acne lesions. Methods: The study involved 92 participants with acne who were divided into two groups, A (n =
Magdalena Daszkiewicz   +2 more
doaj   +1 more source

Thermodynamics of doped Kondo insulator in one dimension: Finite Temperature DMRG Study

open access: yes, 1998
The finite-temperature density-matrix renormalization-group method is applied to the one-dimensional Kondo lattice model near half filling to study its thermodynamics. The spin and charge susceptibilities and entropy are calculated down to T=0.03t.
Aeppli G.   +25 more
core   +1 more source

LiVO3/LiZnVO4 Nanocomposite: High Performance Electrocatalyst for Ambient Nitrogen Reduction to Ammonia

open access: yesAdvanced Engineering Materials, EarlyView.
Lithium‐mediated electrocatalysis enables sustainable N2 fixation but hindered by parasitic Li deposition. An oxide‐oxide nanocomposite (LiVO3/LiZnVO4) structurally integrates lithium into active sites, suppressing plating and enhancing N2 activation and HER supression.
Naina Goyal   +4 more
wiley   +1 more source

The impact of high apparent temperature on spontaneous preterm delivery: a case-crossover study

open access: yesEnvironmental Health, 2017
BackgroundDespite the prediction that temperatures are expected to increase in the future, little is known about the health effects of increasing temperatures on pregnant women.
Lyndsay A. Avalos   +3 more
semanticscholar   +1 more source

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

open access: yesAdvanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund   +6 more
wiley   +1 more source

Superfluid density of states and pseudogap phenomenon in the BCS-BEC crossover regime of a superfluid Fermi gas

open access: yes, 2010
We investigate single-particle excitations and strong-coupling effects in the BCS-BEC crossover regime of a superfluid Fermi gas. Including phase and amplitude fluctuations of the superfluid order parameter within a $T$-matrix theory, we calculate the ...
A. J. Leggett   +5 more
core   +1 more source

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