Results 41 to 50 of about 16,231 (179)

Bound state properties and photodetachment of the negatively charged hydrogen ions

open access: yes, 2015
Absorption of infrared and visible radiation from stellar emission spectra by the negatively charged hydrogen ions H$^{-}$ is considered. The explicit formula for the photodetachment cross-section of the negatively charged hydrogen ion(s) is derived ...
Frolov, Alexei M.
core   +1 more source

Leaf Wax Hydrogen Isotopes Reflect Storm Track Position Over Western North America

open access: yesPaleoceanography and Paleoclimatology, Volume 41, Issue 4, April 2026.
Abstract Proxy records of past climates have yielded powerful insights into regional hydroclimate dynamics. Novel insights may be gained by reconstructing spatiotemporal changes in precipitation isotopologues in past climate states that cannot be gleaned from individual site‐level studies.
Tripti Bhattacharya   +10 more
wiley   +1 more source

Muon Capture on the Proton and Deuteron

open access: yes, 2008
By measuring the lifetime of the negative muon in pure protium (hydrogen-1), the MuCap experiment determines the rate of muon capture on the proton, from which the proton's pseudoscalar coupling g_p may be inferred.
A.A. Quaranta   +14 more
core   +1 more source

Bracon zuleideae Perioto & Lara (Hymenoptera, Braconidae): seed predation potential, expansion of the geographic distribution and new data on host plant phenology

open access: yesEntomoBrasilis, 2019
. Here, by the first time, was quantified the predation of seeds of Protium ovatum Engl. (Burseraceae) by Bracon zuleideae Perioto & Lara (Hymenoptera, Braconidae), a phytophagous seed eater, in Parque Nacional Grande Sertão Veredas, located in the State
Nelson Wanderley Perioto   +2 more
doaj   +1 more source

Twin‐compartment solid–liquid cells for neutron reflectometry

open access: yesJournal of Applied Crystallography, Volume 59, Issue 2, Page 369-380, April 2026.
We introduce a twin‐compartment solid–liquid cell for neutron reflectometry that divides a single substrate into two independent measurement areas, doubling sample capacity and enabling direct side‐by‐side comparisons. This sample environment also reduces alignment and sample preparation time and has been successfully tested on both vertical and ...
Nicoló Paracini   +7 more
wiley   +1 more source

Muon Catalyzed Fusion in 3 K Solid Deuterium

open access: yes, 1997
Muon catalyzed fusion in deuterium has traditionally been studied in gaseous and liquid targets. The TRIUMF solid-hydrogen-layer target system has been used to study the fusion reaction rates in the solid phase of D_2 at a target temperature of 3 K ...
Adamczak, A.   +18 more
core   +1 more source

Investigation of H-mode density limit in mixed protium–deuterium plasmas at JET with ITER-like wall

open access: yesNuclear Materials and Energy
Analysis of comparable discharges fuelled by either deuterium or protium reveals a clear relationship between the isotope mass and the H-mode density limit.
A. Huber   +28 more
doaj   +1 more source

Antifungal Activities of Essential Oils from Protium ovatum Engl. Against Malassezia furfur and Candida Species

open access: yesOrbital: The Electronic Journal of Chemistry, 2022
Fungal opportunistic infections have increased in recent decades due to the increase in the immunosuppressed patients and the indiscriminate use of antifungals.
Gardênia Barbosa Carrijo Rodrigues   +9 more
doaj   +1 more source

Interfacial Behavior of Methane in Methane/p‐Xylene/Water Systems: First Principles Inspected Using Neutron Imaging and Molecular Dynamics Simulations

open access: yesAdvanced Materials Interfaces, Volume 13, Issue 6, 16 March 2026.
Pressurized gases reduce interfacial tension (IFT) at the gas‐liquid interfaces, their influence on the liquid–liquid interfaces remains unclear. For model compounds methane, water, and p‐xylene, neutron imaging observation of pressurized three‐phase systems is combined with Molecular Dynamics simulations.
Martin Melčák   +8 more
wiley   +1 more source

Marked changes in electron transport through the blue copper protein azurin in the solid state upon deuteration

open access: yes, 2012
Measuring electron transport (ETp) across proteins in the solid-state offers a way to study electron transfer (ET) mechanism(s) that minimizes solvation effects on the process.
Alessandrini   +24 more
core   +1 more source

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