Results 91 to 100 of about 227,317 (249)

Management of ischemic optic neuropathies

open access: yesIndian Journal of Ophthalmology, 2011
Ischemic optic neuropathies (IONs) consist primarily of two types: anterior ischemic optic neuropathy (AION) and posterior ischemic optic neuropathy (PION).
Hayreh Sohan
doaj  

Equivalence of Nonstatic Two-Pion-Exchange Nucleon-Nucleon Potentials

open access: yes, 1999
Off-shell aspects of the one-pion-exchange potential and their relationship to different forms of the nonstatic (subleading-order) chiral two-pion-exchange nucleon-nucleon potential are discussed.
A. Manohar   +46 more
core   +3 more sources

Intermittent, Domain-Structured Coherence in the Pion Interferometry of Relativistic Nuclear Collisions [PDF]

open access: yesarXiv, 1999
We investigate a domain-structured source in the pion interferometry of relativistic nuclear collisions. The source emits coherent pions intermittently with the background of chaotic pions. The coherent pions examined are either of a general nature or of disoriented chiral condensate.
arxiv  

Proton and pion distribution functions in counterpoint

open access: yesPhysics Letters B, 2022
Working with proton and pion valence distribution functions (DFs) determined consistently at the same, unique hadron scale and exploiting the possibility that there is an effective charge which defines an evolution scheme for DFs that is all-orders exact,
Ya Lu   +4 more
doaj  

L'abstentionnisme électoral en Belgique : données individuelles et agrégées à Charleroi

open access: yesL'Espace Politique, 2011
Electoral absenteeism is a common studied subject in the Anglo-Saxon and French scientific world. But researches about it in Belgium, where voting is compulsory are not far from being null.
Geoffrey Pion
doaj   +1 more source

Le vote blanc et nul en Wallonie : analyse écologique et individuelle

open access: yesBelgeo, 2010
Blank and null votes are probably the electoral behaviour least taken into account by electoral studies. Though, in a democracy like Belgium, these votes are far from negligible and offer an untypical geography which underlines border areas.
Geoffrey Pion
doaj   +1 more source

Neutrino-induced coherent pion production off nuclei reexamined

open access: yes, 2009
It is pointed out that so far all theoretical estimates of coherent pion production off nuclei induced by neutrinos rely on the 'local approximation' well known in photonuclear physics. The effects of dropping this approximation are discussed.
Federico Sanchez   +5 more
core   +2 more sources

Charge dependence of the pion-nucleon coupling constant

open access: yesÂderna Fìzika ta Energetika, 2015
On the basis of the Yukawa potential we study the pion-nucleon coupling constants for the neutral and charged pions assuming that nuclear forces at low energies are mainly determined by the exchange of virtual pions.
V. A. Babenko, N. M. Petrov
doaj  

Géographie des comportements électoraux protestataires en Wallonie : une approche infra-communale à Charleroi et Mons

open access: yesBelgeo, 2009
This paper will demonstrate the usefulness of submunicipal electoral data based on the study of voting behaviour illustrated by far right wing votes and non voting in Wallonia.
Geoffrey Pion
doaj   +1 more source

B decays into pion-pion-kaon and into kaon-antikaon-kaon: long distance and final-state effects [PDF]

open access: yesarXiv, 2005
The interplay of strong and weak decay amplitudes for B -> pion-pion-kaon and B -> kaon-antikaon-kaon, with the pion-pion and kaon-antikaon pairs interacting in isospin-0 S-wave, is analyzed for pion-pion effective mass from threshold to 1.2 GeV. To improve agreement with experiment of a factorization approach with some QCD corrections, addition of ...
arxiv  

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