Results 181 to 190 of about 12,005 (239)

Quantification of Reaction Barriers Under Diffusion Controlled Conditions

open access: yesJournal of Computational Chemistry, Volume 46, Issue 25, September 30, 2025.
ABSTRACT In quantum chemistry, diffusion‐controlled reactions are typically characterized by a monotonous rise in the electronic energy, indicative of a barrierless process. In reality, this change in electronic energy is accompanied by an increase in entropy, thereby introducing a barrier in free energy.
Martin M. Maehr   +2 more
wiley   +1 more source

Direct Probe Ionisation Mass Spectrometry for Rapid and Accurate Determination of Perfluoroalkyl and Polyfluoroalkyl Substance Concentrations

open access: yesRapid Communications in Mass Spectrometry, Volume 39, Issue 18, 30 September 2025.
ABSTRACT Rationale Analysis of perfluoroalkyl and polyfluoroalkyl substances (PFAS) is typically achieved using chromatographic techniques, such as high‐performance liquid chromatography, combined with mass spectrometry. These techniques can be complex, expensive, time consuming and can lead to inaccurate quantification due to sample container sorption
Tim P. Sidnell   +4 more
wiley   +1 more source

Neural manifolds carry reactivation of phonetic representations during semantic processing

open access: yes, 2023
Orepic P   +5 more
europepmc   +1 more source

Geographic environments, daily activities and stress in Luxembourg (the FragMent study): a protocol combining map-based questionnaires, geographically explicit ecological momentary assessment and vocal biomarkers of stress. [PDF]

open access: yesBMJ Open
Perchoux C   +14 more
europepmc   +1 more source

南琉球語伊良部島方言の音韻論

open access: yes, 2007
SHIMOJI, Michinori   +2 more
core  

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