Results 71 to 80 of about 55,721 (192)

The plasticisation model of dye diffusion: Part 5

open access: yesColoration Technology, EarlyView.
Abstract The findings presented in the previous part of the paper (Part 4) of the re‐evaluation of previously published data reported for the temperature‐dependent diffusion of an organic acid within nylon 6 film, desorption of three acid dyes from dyed nylon 66 fabric, diffusion of an acid dye within nylon 6 monofilaments and adsorption of a sulphur ...
Stephen M. Burkinshaw
wiley   +1 more source

Determination of pion and kaon fragmentation functions including spin asymmetries data in a global analysis

open access: yes, 2013
We present new functional form of pion and kaon fragmentation functions up to next-to-leading order obtained through a global fit to single-inclusive electron-positron annihilation data and also employ, the semi-inclusive deep inelastic scattering ...
Arbabifar, F.   +3 more
core   +1 more source

A matter arising: When should inflammatory and autoimmune rheumatic diseases be considered ‘early’?

open access: yesEuropean Journal of Clinical Investigation, EarlyView.
Timely recognition of inflammatory and autoimmune rheumatic diseases (IARDs) is important to optimize the early diagnosis with tailored interventions and possible prevention of irreversible organ damage. This narrative review provides an update by summarizing the advances in identifying the early stages of rheumatoid arthritis, systemic sclerosis and ...
Elvis Hysa   +7 more
wiley   +1 more source

Photon correlations in positron annihilation

open access: yes, 2010
The two-photon positron annihilation density matrix is found to separate into a diagonal center of energy factor implying maximally entangled momenta, and a relative factor describing decay.
Isabelle Gauthier   +3 more
core   +1 more source

Considerations and challenges of septic arthritis and osteomyelitis

open access: yesEquine Veterinary Education, EarlyView.
Summary Septic arthritis remains a common orthopaedic condition in both human and veterinary medicine which can cause serious morbidity and pose considerable challenges for clinical management. The majority of the published clinical research in humans and veterinary species has been focused on the diagnosis, treatment, prevention and outcome of this ...
J. B. Engiles, H. L. Stewart
wiley   +1 more source

Many-body theory calculations of positron binding to negative ions [PDF]

open access: yes, 2010
A many-body theory approach developed by the authors [Phys. Rev. A 70, 032720 (2004)] is applied to positron bound states and annihilation rates in atomic systems.
Gribakin, G. F., Ludlow, J. A.
core   +1 more source

Positron Fraction in the CMSSM

open access: yes, 2002
A fit to the present data on the cosmic ray positron fraction can be considerably improved,if in addition to the positron production by nuclear interactions in the universe the possible contribution from supersymmetric dark matter annihilation is taken ...
de Boer, Wim   +3 more
core   +2 more sources

Positron-electron annihilation momentum transfer to trapped deuterons

open access: yesAIP Advances, 2019
The probability of positron annihilation momentum transfer to a trapped deuteron is calculated based on neutron measurements from 2H(d,n)3He reactions in deuterated palladium thin films. Deuterium gas loading in Pd thin films creates a high D/Pd fraction
Ryan Weed   +4 more
doaj   +1 more source

Surfaces of colloidal PbSe nanocrystals probed by thin-film positron annihilation spectroscopy

open access: yesAPL Materials, 2013
Positron annihilation lifetime spectroscopy and positron-electron momentum density (PEMD) studies on multilayers of PbSe nanocrystals (NCs), supported by transmission electron microscopy, show that positrons are strongly trapped at NC surfaces, where ...
L. Chai   +13 more
doaj   +1 more source

Hydrogen response to high‐density dislocations in bulk perovskite oxide SrTiO3

open access: yesJournal of the American Ceramic Society, Volume 109, Issue 1, January 2026.
High‐density dislocations are engineered into single‐crystal strontium titanate using cyclic Brinell indentation scratch tests at room temperature. These dislocations are found effective in uptaking hydrogen. Abstract Hydrogen plays an increasingly important role in green energy technologies. For instance, proton‐conducting oxides with high performance
Xufei Fang   +8 more
wiley   +1 more source

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