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Gene expression of paracoccidioides virulence factors after interaction with macrophages and fibroblasts
(2021-01-01)
Paracoccidioidomycosis (PCM) is a systemic mycosis with high prevalence in Latin America that is caused by thermodimorphic fungal species of the Paracoccidioides genus. In this study, we used quantitative PCR (qPCR) to ...
A Monte Carlo Study on the Fit of a Cost Function by a Fourier Flexible Functional FormA Monte Carlo Study on the Fit of a Cost Function by a Fourier Flexible Functional Form
(Sociedade Brasileira de Econometria, 1995)
Electromagnetic form factor of the pion in the space- and time-like regions within the front-form dynamics
(2004-02-12)
The pion electromagnetic form factor is calculated in the space- and time-like regions from -10 (GeV/c)2 up to 10 (GeV/c)2, within a front-form model. The dressed photon vertex where a photon decays in a quark-antiquark ...
A Combined Study of the Pion's Static Properties and form Factors
(2013-11-01)
We study consistently the pion's static observables and the elastic and γ* γ → π0 transition form factors within a light-front model. Consistency requires that all calculations are performed within a given model with the ...
A Combined Study of the Pion's Static Properties and form Factors
(2013-11-01)
We study consistently the pion's static observables and the elastic and γ* γ → π0 transition form factors within a light-front model. Consistency requires that all calculations are performed within a given model with the ...
Ideas of four-fermion operators in electromagnetic form factor calculations
(2014-01-01)
Four-fermion operators have been utilized in the past to link the quark-exchange processes in the interaction of hadrons with the effective meson-exchange amplitudes. In this presentation, we apply the similar idea of Fierz ...
Freezing of the QCD coupling constant and the pion form factor
(World Scientific Publ Co Pte Ltd, 2003-01-01)
The possibility that the QCD coupling constant (alpha(s)) has an infrared finite behavior (freezing) has been extensively studied in recent years. We compare phenomenological values of the frozen QCD running coupling between ...
Relativistic quark spin coupling effects in the nucleon electromagnetic form factors
(2000-04-06)
We investigate the effect of different forms of relativistic spin coupling of constituent quarks in the nucleon electromagnetic form factors. The four-dimensional integrations in the two-loop Feynman diagram are reduced ...