-
Article
Open AccessCo-axial acoustic-based optical coherence vibrometry probe for the quantification of resonance frequency modes in ocular tissue
We present a co-axial acoustic-based optical coherence vibrometry probe (CoA-OCV) for vibro-acoustic resonance quantification in biological tissues. Sample vibrations were stimulated via a loudspeaker, and pre...
-
Article
Arsenic levels in immigrant children from countries at risk of consuming arsenic polluted water compared to children from Barcelona
Arsenic is a highly toxic element that pollutes groundwater, being a major environmental problem worldwide, especially in the Bengal Basin. About 40 % of patients in our outpatient clinics come from those coun...
-
Article
Pion tensor force and nuclear binding energy in the relativistic Hartree-Fock formalism
The binding energies of several isotopic families are studied within the relativistic Hartree-Fock approximation with the pseudovector coupling for the πN vertex, to find out a suitable strength for the effective...
-
Article
Nuclear relativistic Hartree-Fock approximation with weakened pion tensor force
Properties linked to the single-particle energies, as nuclear spectra, spin-orbit splittings and shell gaps are investigated in the framework of the relativistic Hartree-Fock approximation with pseudovector co...
-
Article
Nuclear relativistic hartree-fock approximation with effective pions
The effect of an interaction between the σ- and π-meson fields, as well as that of the mixture of pseudoscalar (PS) and pseudovector (PV) couplings for the πN vertex on the shell structure of finite nuclei are an...
-
Article
Isotopic dependence of the nuclear charge radii and binding energies in the relativistic Hartree-Fock formalism
Relativistic nonlinear models based on the Hartree and Hartree-Fock approximations, including the σ, ω, π, and ρ mesons, are worked out to explore the behavior of the nuclear charge radii and the binding energies...
-
Article
New insights on pseudospin doublets in nuclei
The relevance of pseudospin symmetry in nuclei is considered. New insights are obtained from looking at the continuous transition from a non-relativistic model satisfying spin symmetry to another one satisfyin...
-
Article
Pseudospin symmetry as an accidental symmetry in the relativistic framework
We analyse the arguments used in the relativistic context to base the quasi-degeneracy of pseudospin doublets (PSDs) observed in atomic nuclei on the smallness of the single-particle central potential (Σ ...
-
Article
Pseudospin symmetry in the Dirac phenomenology
In the phenomenological relativistic framework of the Dirac equation for spherical nuclei, we use different kinds of single-particle central potentials ( ΣS + Σ0 to investigate certain aspects of the spin and ps...
-
Article
Pseudospin symmetry in finite nuclei
The pseudospin symmetry (PSS) is an important feature of the nuclear structure. Most of the authors working in this field at present consider the PSS as an approximate symmetry, although there exist certain es...
-
Article
The spin and pseudospin symmetries in the relativistic formalism: Similarities and differences
The effects of the symmetry breaking terms, spin-orbit potential (SOP) and pseudospin-orbit potential (PSOP), in the spin and pseudospin symmetries, respectively, are studied in a comparative way. The analytic...
-
Article
Origin of the pseudospin symmetry in the relativistic formalism
The grounds on which the nuclear pseudospin symmetry (PSS) is supposed to be based are analysed within the relativistic mean-field framework. A connection between the mechanisms responsible for the spin-orbit ...
-
Article
Reliability of the pseudospin symmetry in atomic nuclei
The reliability of the pseudospin symmetry (PSS) in atomic nuclei is analyzed in the framework of the relativistic Hartree approach. We find that the nuclear surface strongly increases the effect of the pseudo...
-
Article
Effect of atmospheric factors on the incidence of Bell’s palsy
To assess the possible influence of atmospheric factors on the incidence of Bell’s palsy, a retrospective case review of patients seen between 1 January 1992 and 30 June 1996, was designed. The population inc...
-
Chapter
The Pseudospin Symmetry in Finite Nuclei: Dirac Phenomenology
In the framework of the Dirac phenomenology it is shown that the pseudo-spin symmetry breaking term is not perturbative. The self-consistent effects are important for generating the total pseudo spin-orbit spl...
-
Article
A relativistic description of nuclei
The usual Dirac-Hartree description of nuclei is extended to the case where Fock terms are included, with the addition ofπ- andϱ-meson degrees of freedom. Preliminary results show the important role played by the
-
Article
Thermal properties of nuclei in the energy density formalism
Several thermal properties of finite nuclei are calculated using the energy density formalism and a variational method with trial functions of Fermi type. The change with temperature of the density distributio...
-
Article
Hot, dense matter in the bulk equilibrium approximation
The equation of state (EOS) of hot, dense matter is computed along two adiabats, s =1k ands = 1.5k, neglecting effects associated with finite nuclear size. Detailed comparison with the results previously obtained...
