Search results for "BES"
showing 10 items of 3692 documents
Evaluation of the antibacterial power and biocompatibility of zinc oxide nanorods decorated graphene nanoplatelets: New perspectives for antibiodeter…
2017
Background Nanotechnologies are currently revolutionizing the world around us, improving the quality of our lives thanks to a multitude of applications in several areas including the environmental preservation, with the biodeterioration phenomenon representing one of the major concerns. Results In this study, an innovative nanomaterial consisting of graphene nanoplatelets decorated by zinc oxide nanorods (ZNGs) was tested for the ability to inhibit two different pathogens belonging to bacterial genera frequently associated with nosocomial infections as well as biodeterioration phenomenon: the Gram-positive Staphylococcus aureus and the Gram-negative Pseudomonas aeruginosa. A time- and dose-…
ETIOBE: Un protocolo de intervención para la obesidad infantil apoyado en las tecnologías de la información y la comunicación
2015
El sobrepeso y la obesidad infantil, constituyen hoy en día un grave problema de salud en todo el mundo. La elevada prevalencia de la obesidad infantil ha llevado a que países como Estados Unidos y Europa inviertan en recursos físicos y económicos para desarrollar estrategias capaces de paliar y frenar este alarmante incremento. Sin embargo, a pesar de todo este esfuerzo, la realidad muestra cómo cada vez son más las personas afectadas de este problema. Este problema adquiere una gran magnitud debido a las consecuencias físicas, psicológicas y sociales asociadas al mismo. Ante esta problemática surge la necesidad de desarrollar programas de intervención eficaces, capaces de lograr no sólo e…
Exact Fourier expansion in cylindrical coordinates for the three-dimensional Helmholtz Green function
2009
A new method is presented for Fourier decomposition of the Helmholtz Green Function in cylindrical coordinates, which is equivalent to obtaining the solution of the Helmholtz equation for a general ring source. The Fourier coefficients of the Helmholtz Green function are split into their half advanced+half retarded and half advanced-half retarded components. Closed form solutions are given for these components in terms of a Horn function and a Kampe de Feriet function, respectively. The systems of partial differential equations associated with these two-dimensional hypergeometric functions are used to construct a fourth-order ordinary differential equation which both components satisfy. A s…
Frame-related Sequences in Chains and Scales of Hilbert Spaces
2022
Frames for Hilbert spaces are interesting for mathematicians but also important for applications in, e.g., signal analysis and physics. In both mathematics and physics, it is natural to consider a full scale of spaces, and not only a single one. In this paper, we study how certain frame-related properties of a certain sequence in one of the spaces, such as completeness or the property of being a (semi-) frame, propagate to the other ones in a scale of Hilbert spaces. We link that to the properties of the respective frame-related operators, such as analysis or synthesis. We start with a detailed survey of the theory of Hilbert chains. Using a canonical isomorphism, the properties of frame se…
Frames and weak frames for unbounded operators
2020
In 2012 G\u{a}vru\c{t}a introduced the notions of $K$-frame and of atomic system for a linear bounded operator $K$ in a Hilbert space $\mathcal{H}$, in order to decompose its range $\mathcal{R}(K)$ with a frame-like expansion. In this article we revisit these concepts for an unbounded and densely defined operator $A:\mathcal{D}(A)\to\mathcal{H}$ in two different ways. In one case we consider a non-Bessel sequence where the coefficient sequence depends continuously on $f\in\mathcal{D}(A)$ with respect to the norm of $\mathcal{H}$. In the other case we consider a Bessel sequence and the coefficient sequence depends continuously on $f\in\mathcal{D}(A)$ with respect to the graph norm of $A$.
Los falsos sagunt de las fuentes árabes
2009
En fechas recientes he dedicado varios trabajos a estudiar el topónimo valenciano Morvedre 1, nombre antiguo de la actual Sagunto. Esto me ha llevado a replantearme el problema de la identificación y localización de los hipotéticos «Sagunto» que aparecen en las fuentes árabes al narrar sendas revueltas acaecidas en los años 172/778-789 y 317/929-930. Mi punto de partida se sigue basando en el hecho de que la existencia de un doblete Sagunto-Morvedre sería un insólito caso andalusí de uso simultáneo de dos denominaciones romances; una de ellas, además, ofrecería grafías dispares en las crónicas (Š gnt, Bs ‘t en 172; Smgws, Šgwns en 317). Por otro lado, en la descripción de al-Andalus de al-R…
Optical properties of cloudy atmospheres through Radiative Transfer and Remote Sensing: From 1D to 3D approach
2021
Las nubes producen grandes cambios en el balance radiativo terrestre. Sin embargo, sigue habiendo incógnitas en aspectos clave concernientes a ellas, tales como sus propiedades físicas, radiativas y estructura interna. Con ello, el conocimiento acerca de su influencia en el sistema climático permanece incompleto. El efecto de las nubes es clave para el calentamiento global, y las incertidumbres acerca de sus propiedades deben ser resueltas en aras de llevar a cabo predicciones correctas del futuro cambio climático. Con todo ello, las observaciones continuas y sistemáticas de dichas propiedades es crucial. En este trabajo nos servimos de la teledetección desde suelo mediante una cámara de nu…
La incidencia de las malas relaciones entre los progenitores a la hora de acordar el régimen de guarda y custodia compartida. Análisis de la reciente…
2018
The relationship that the parents have with each other is one of the factors to take into consideration when adopting or not the modality of shared custody and custody after a situation of family crisis. To deny the shared modality if there was no good relationship between the parents was the rule until relatively recent dates. With the entry into force of local laws as well as the change in jurisprudence, the tendency that remains is to consider that it will no longer be enough that there is this bad relationship but will have to be a situation of high confrontation so that this situation may be grounds for denial of the shared custody regime.
Prima applicazione della procedura consultiva prevista nel «protocollo n. 16» cedu e tutela dei minori
2020
Il saggio analizza il primo parere consultivo formulato dalla Corte europea dei diritti dell?uomo. Particolare attenzione è rivolta al riconoscimento della genitorialità intenzionale, nonché alla tutela del diritto all?identità dei figli; diritto posto in primo piano dalla Corte di Strasburgo.
El interés del menor como criterio de aplicación de la Ley Valenciana de relaciones familiares.
2015
El artículo analiza la forma en que los Tribunales vienen utilizando el concepto del interés del menor en la aplicación de la Ley valenciana 5/2011 después de algunos años desde su publicación. This paper analyzes the way in which the courts use the concept of minor's best interest of in the application of Valencian Act 5/2011 after some years from entry into force.