17 articles in this issue
Arbelio Pentón
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Dario A. León-Valido, Gabriel Gil, Augusto González
In this work is estimated the nuclear charge threshold, Zc, at which an atom turns unstable. In order to achieve it, an interpolation procedure based on an effective Schrödinger equation for the most external electrons is used. The results are compared wi... see more
Ernesto Carrillo, A. Jiménez, E. Moreno, L. Leija, A. Vera, A. Ramos
The first results in the design of a pulsed Doppler ultrasound system are presented, which aims to detect alterations of diabetic foot cataloged as ”high risk”, associated with the processes that lead to occlusion of blood vessels. Therefore, measurement ... see more
G. C. Rana, R. Chand, V. Sharma
In this paper, we study the effect of AC electric field on the onset of electrohydrodynamic instability in a viscoelastic fluid layer saturating a porous medium caused by dielectrophoretic force due to variation in the dielectric constant with temperature... see more
L. Alonso-Llanes, Gustavo Sánchez-Colina, Etién Martínez, A. J. Batista-Leyva, R. Toussaint, Ernesto Altshuler
Understanding the penetration dynamics of intruders in granular beds is relevant not only for fundamental physics, but also for geophysical processes and construction on sediments or granular soils in areas potentially affected by earthquakes. In this wor... see more
D. Cabrera, P. Fernández de Córdoba, J. M. Isidro, J. M. Valdés-Placeres, J. Vazquez-Molina
We derive a mapping between the Schrödinger equation and the Navier-Stokes equation, which generalizes the one proposed by Madelung in 1926 with the Euler equation. Since fluid mechanics is the paradigm of an emergent theory, these maps support the interp... see more
R. L. Panadés-Barrueta, J. Rubayo-Soneira, M. Monnerville, P. Larregaray, F. Dayou, A. Rivero-Santamaría
The SiO molecule is the most widespread silicon-bearing molecule in the interstellar medium. Its largest abundances are found in regions of star formation, whereas its abundance is very low in quiescent cold dark clouds. The major source of SiO in the “sh... see more
C. E. Moreno-Crespo, A. Pelaiz-Barranco, A. Santana-Gil, Y. Méndez-González, J. D. S. Guerra, Yuslín González-Abreu, P. Saint-Gregoire, O. García-Zaldivar, F. Calderón-Pinar
An easy, home-made experimental setup is presented to process ferroelectric thin films by using the dip-coating method. It has been used a stepper motor, a control circuit that provides electrical power to the motor, and a computer. A LabVIEW program has ... see more
N. López-Marín, F. Corrales-Machín, E. Castro-Álvarez, R. Rodríguez-Fernández
The exact solution of the propagation of light in turbid media is possible only in very simple problems. In almost all practical cases numerical methods are mandatory. In this paper we calculate the absorbance of light in tumoral tissue using Monte Carlo ... see more
J. R. Fernández-Gamboa, A. Cruz-García, P. Muné, Ernesto Altshuler, O. Vazquez-Robaina, R. F. Jardim
We report a method for characterizing the electric transport through the intragranualar defects in two main directions of a superconducting sample. The main experimental data, the I-V curves, were taken on Bi-2223 samples at 90 K and low applied magnetic ... see more
A. Reyes, G. Rodríguez, Ernesto Altshuler
L. Rodríguez, R. Cárdenas, L. González, O. Rodríguez
A. Vargas, I. C. Navarrete, I. González, M. Camacho
The uses of ultrasounds in medical applications like ultrasonic surgery, diagnosis, and nowadays in cellular separations and manipulations, has foment the study about physical and biological effects, related to exposure of cells at an acoustic field. The ... see more
O. De Melo
Essential topics of two phenomena related with the 2016 Nobel Prize in Physics are described: the quantum Hall effect and topological insulators. In particular: i) the importance of topology to explain the stability of the Klitzing constant obtained from ... see more
W. Bietenholz, U. Gerber
The 2016 Physics Nobel Prize honors a variety of discoveries related to topological phases and phase transitions. Here we sketch two exciting facets: the groundbreaking works by John Kosterlitz and David Thouless on phase transitions of infinite order, an... see more
M. L. González-Martínez, P. Larrégaray, J. Rubayo-Soneira, J. C. Rayez
Strong academic relations have been established over the last decade between Cuban and French researchers in the field of molecular chemical-physics. This collaboration, founded on joint PhD projects, have been developed outside traditional bilateral prog... see more