Results 11 to 20 of about 9,346 (185)

Chiral symmetry breaking: Current experimental status and prospects [PDF]

open access: yesEPJ Web of Conferences, 2023
Chiral symmetry, linked to the smallness of the quark masses compared to the QCD bound states, and its breaking pattern are exploited in effective field theory to describe a multitude of phenomena by a few low-energy constants.
Friedrich Jan
doaj   +1 more source

On the Usefulness of Two Small-Scale In Vitro Setups in the Evaluation of Luminal Precipitation of Lipophilic Weak Bases in Early Formulation Development

open access: yesPharmaceutics, 2020
A small-scale biphasic dissolution setup and a small-scale dissolution-permeation (D-P) setup were evaluated for their usefulness in simulating the luminal precipitation of three lipophilic weak bases—dipyridamole, ketoconazole and itraconazole ...
Patrick J. O’Dwyer   +3 more
doaj   +1 more source

Pion Production by Negative Pions [PDF]

open access: yesPhysical Review Letters, 1961
The reaction pi /sup -/ + p yields pi /sup +/ + pi /sup -/ + n is studied for incident T/sub i- = 365 and 432 Mev. The energy spectra of the ernergent pi /sup +/ mesons are measured at various angles with respect to the incident pi /sup -/ beam. The differential cross sections are analyzed in terms of pion-pion interactions and pionnuclecn resonances. (
Barish, Barry C.   +4 more
openaire   +3 more sources

Dispersion relations for hadronic light-by-light and the muon g − 2 [PDF]

open access: yesEPJ Web of Conferences, 2020
The largest uncertainties in the Standard Model calculation of the anomalous magnetic moment of the muon (g−2)µ come from hadronic effects, namely hadronic vacuum polarization (HVP) and hadronic lightby-light (HLbL) contributions.
Procura Massimiliano   +3 more
doaj   +1 more source

Pion-Pion Interaction [PDF]

open access: yesProgress of Theoretical Physics, 1962
The modified effective range formulas for S- and P-wave pion-pion scattering which contain the effect of nucleon closed loops are derived using the chain approximation. These are extensions along the lines of Chew and Mandelstam, and Okubo and Miyamoto.
Shin Ishida, Kazo Nakazawa
openaire   +1 more source

Evolution in Time of Radiation Defects Induced by Negative Pions and Muons in Crystals with a Diamond Structure

open access: yesCrystals, 2017
Evolution in time of radiation defects induced by negatively-charged pions and muons in crystals with diamond structures is considered. Negative pions and muons are captured by the nucleus and ionize an appropriate host atom, forming a positively-charged
Yury M. Belousov
doaj   +1 more source

Pion PDFs confronted by fixed-target charmonium production

open access: yesAAPPS Bulletin, 2023
The pion, as the Goldstone boson of the strong interaction, is the lightest QCD bound state and responsible for the long-range nucleon-nucleon interaction inside the nucleus.
Wen-Chen Chang   +5 more
doaj   +1 more source

Perioperative posterior ischemic optic neuropathy (PION) after open aortic surgery

open access: yesAnnals of Vascular Surgery - Brief Reports and Innovations, 2022
Perioperative posterior ischemic optic neuropathy (PION) is a rare but potentially devastating condition. A correlation of PION with major surgical procedures has been established, particularly in cases of spine and cardiovascular surgery.
Jonathan Lovis   +5 more
doaj   +1 more source

Pion Production by Pions

open access: yesPhysical Review Letters, 1959
In order to study the direct interaction of the incident pion with a virtual pion in the meson cloud surrounding a nucleon, the reaction pi + p yields pi /sup +/ + pi /sup -/ + n was investigated in the energy range from 260 to 430 Mev. Negative pion beams impinged on a 4-in.thick liquid hydrogen target.
Perkins, Walton A.   +4 more
openaire   +2 more sources

Barriers and Facilitators in Implementing Clinical Practice Guidelines Among Nurses in Emergency Departments and Critical Care Units: A Systematic Review. [PDF]

open access: yesJ Clin Nurs
ABSTRACT Aim This systematic review explored the barriers and facilitators to the implementation of clinical practice guidelines (CPGs) among nurses in emergency departments (EDs) and critical care units (CCUs). Design Systematic review. Method A systematic review was performed using both qualitative and quantitative studies from five databases (CINAHL,
Alrashdi MH, Quinn B, Clarke SA.
europepmc   +2 more sources

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