En este artículo se plantean los nuevos retos a los que se enfrenta la actividad informativa en la era de internet, caracterizada por la horizontalidad y transversalidad de los modelos comunicativos entre medios y ciudadanos. ...

In this paper, for both the sharp front surface quasi-geostrophic equation and the Muskat problem, we rule out the “splash singularity” blow-up scenario; in other words, we prove that the contours evolving from either of ...

We report the observation of spontaneous localization of energy in two spatial dimensions in the context of nonlinear electrical lattices. Both stationary and moving self-localized modes were generated experimentally and ...

We demonstrate theoretically and experimentally the phenomenon of vibrational resonance in a periodic potential, using cold atoms in an optical lattice as a model system. A high-frequency (HF) drive, with a frequency ...

Motivated by recent work [D. Cubero et al., Phys. Rev. E 82, 041116 (2010)], we examine the mechanisms which determine current reversals in rocking ratchets as observed when varying the frequency of the drive. We found ...

Directed transport in ratchets is determined by symmetry breaking in a system out of equilibrium. A hallmark of rocking ratchets is current reversals: an increase in the rocking force changes the direction of the current. ...

Se presentan los resultados de un análisis crítico, de corte interpretativo, sobre la educación científica que se promueve desde el curriculum oficial de Primaria para Andalucía. Para ello, se aplicó un protocolo de ...

En este artículo se presentan los resultados de un estudio sobre la Comisión de Deontología del Periodismo de la FAPE, como instancia de la autorregulación del periodismo en España. El propósito del presente trabajo se ...

Deficit irrigation scheduling needs accurate indicators and in recent decades, continuous plant indicators have been developed. However, threshold values that could be useful in commercial orchards are not commonly reported. ...