Results 91 to 100 of about 17,395 (210)

ABCD transfer matrix model of Gaussian beam propagation in plano-concave optical microresonators

open access: yesOptics Express, 2023
Plano-concave optical microresonators (PCMRs) are optical microcavities formed of one planar and one concave mirror separated by a spacer. PCMRs illuminated by Gaussian laser beams are used as sensors and filters in fields including quantum electrodynamics, temperature sensing, and photoacoustic imaging.
David Martin-Sanchez   +4 more
openaire   +3 more sources

Reinstatement and a resurgence‐like effect in an odor‐signaled multiple schedule in rats

open access: yesJournal of the Experimental Analysis of Behavior, Volume 125, Issue 1, January 2026.
Abstract This study examined determinants of relapse in rats within a multiple schedule signaled by three odor stimuli (S1, S2, S3). In both experiments, reinforcement was programmed for all components in Phase A, extinction in S1 was programmed in Phase B, extinction in both S1 and S2 in Phase C, and extinction in all components in Phase D.
Madeleine G. Mason   +7 more
wiley   +1 more source

Simplified diagrammatic expansion for effective operator

open access: yes, 2004
For a quantum many-body problem, effective Hamiltonians that give exact eigenvalues in reduced model space usually have different expressions, diagrams and evaluation rules from effective transition operators that give exact transition matrix elements ...
Dong, Hui-Ning   +3 more
core   +1 more source

A Mini Review on Evolution of High‐Entropy Alloy Design: From Experimental Approaches to Machine Learning Integration

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT High‐entropy alloys (HEAs) have emerged as a transformative class of materials distinguished by their complex chemical compositions, unique microstructures, and remarkable mechanical and functional properties. Traditionally, the discovery and optimization of HEAs have relied on conventional methods, including trial‐and‐error experimentation ...
Chrispin Ouko Zamzu   +2 more
wiley   +1 more source

The influence of alcohol on prehospital diagnostics and therapy of injured patients

open access: yesAlcohol, Clinical and Experimental Research, Volume 50, Issue 1, January 2026.
This matched‐pair study of 6468 trauma patients analyzed the impact of alcohol intoxication on initial prehospital assessment and treatment. Alcohol‐intoxicated patients were less accurately assessed—especially regarding head and facial injuries—which led to both over‐ and underdiagnosis.
Ramona Sturm   +6 more
wiley   +1 more source

Rearrangements and Tunneling Splittings in Small Water Clusters

open access: yes, 1998
Recent far-infrared vibration-rotation tunneling (FIR-VRT) experiments pose new challenges to theory because the interpretation and prediction of such spectra requires a detailed understanding of the potential energy surface (PES) away from minima.
David J. Wales, Friedrich B.
core   +1 more source

Delirium in the Acute Care Setting From the Families Perspective: A Scoping Review

open access: yesJournal of Advanced Nursing, Volume 82, Issue 1, Page 44-60, January 2026.
ABSTRACT Aim To explore the existing literature on delirium within the acute care setting from the family members' perspective and summarise key findings. Design A scoping review guided by Arksey and O'Malley's methodological framework and refined by the Joanna Briggs Institute.
Amber Mclean   +2 more
wiley   +1 more source

Sherrington-Kirkpatrick model near $T=T_c$: expanding around the Replica Symmetric Solution

open access: yes, 2010
An expansion for the free energy functional of the Sherrington-Kirkpatrick (SK) model, around the Replica Symmetric SK solution $Q^{({\rm RS})}_{ab} = \delta_{ab} + q(1-\delta_{ab})$ is investigated.
A Crisanti   +7 more
core   +1 more source

Desmoplastic melanoma in Sweden in 2009–2022: A population‐based registry study demonstrating distinctive tumour characteristics, incidence and survival trends

open access: yesJournal of the European Academy of Dermatology and Venereology, Volume 40, Issue 1, Page 90-98, January 2026.
The incidence of desmoplastic melanoma (DM) in Sweden remains stable, unlike rising cutaneous melanoma rates. Despite advanced tumour features, DM patients have better survival outcomes. However, recent survival improvements are lacking, potentially due to limited treatment options compared to other melanoma subtypes.
Yodit Girmay   +5 more
wiley   +1 more source

Ab Initio Calculations of Even Oxygen Isotopes with Chiral Two- Plus Three-Nucleon Interactions

open access: yes, 2013
We formulate the In-Medium Similarity Renormalization Group (IM-SRG) for open-shell nuclei using a multi-reference formalism based on a generalized Wick theorem introduced in quantum chemistry.
Binder, S.   +4 more
core   +1 more source

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