6,067 research outputs found
La promoción de la salud en personas en situación de drogodependencia: las Tecnologías de la información y la comunicación como herramienta innovadora
[Resumen] En el presente capítulo se establece la relación de la autonomía de las personas con drogodependencia y su salud en la Sociedad del Conocimiento, a través de la Clasificación Internacional del Funcionamiento, de la Discapacidad y de la Salud. Partiendo de ello se realiza una propuesta de intervención basada en las Tecnologías de la Información y la Comunicación como medio de promoción de la salud para el empoderamiento de esta población, incrementando su autonomía y mejorando su calidad de vida
Evidence of ongoing radial migration in NGC 6754: Azimuthal variations of the gas properties
Understanding the nature of spiral structure in disk galaxies is one of the
main, and still unsolved questions in galactic astronomy. However, theoretical
works are proposing new testable predictions whose detection is becoming
feasible with recent development in instrumentation. In particular, streaming
motions along spiral arms are expected to induce azimuthal variations in the
chemical composition of a galaxy at a given galactic radius. In this letter we
analyse the gas content in NGC 6754 with VLT/MUSE data to characterise its 2D
chemical composition and H line-of-sight velocity distribution. We find
that the trailing (leading) edge of the NGC 6754 spiral arms show signatures of
tangentially-slower, radially-outward (tangentially-faster, radially-inward)
streaming motions of metal-rich (poor) gas over a large range of radii. These
results show direct evidence of gas radial migration for the first time. We
compare our results with the gas behaviour in a -body disk simulation
showing spiral morphological features rotating with a similar speed as the gas
at every radius, in good agreement with the observed trend. This indicates that
the spiral arm features in NGC 6754 may be transient and rotate similarly as
the gas does at a large range of radii.Comment: 8 pages, 4 figures, accepted for publication in ApJL 2016 September
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On the Absence of the Zeno Effect in Relativistic Quantum Field Theory
We study the time evolution of decaying particles in renormalizable models of
Relativistic Quantum Field Theory. Significant differences between the latter
and Non Relativistic Quantum Mechanics are found -in particular, the Zeno
effect seems to be absent in such RQFT models. Conventional renormalization
yields finite time behavior in some cases but fails to produce finite survival
probabilities in others.Comment: Revised version of the paper Time evolution and Zeno effect in
relativistic quantum field theory. To appear in Phys. Lett.
Las bibliotecas como facilitadoras del acceso abierto
Biblioteques; Accés obert; Gestió de dades d'investigacióBibliotecas; Acceso abierto; Gestión de datos de investigaciónLibraries; Open Access; Research data managementTreball presentat durant la intervenció de l'autora a la taula rodona: "Ciència Oberta: com gestionar i publicar en accés obert i suport a la gestió de dades de recerca en obert”. Presenta el concepte de ciència oberta, i com les biblioteques poden oferir el seu recolzament. Explica algunes iniciatives portades a terme sobre ciència oberta, i com el bibliotecari pot ajudar a l'investigador, descrivint algunes eines sobre la gestió de la col·lecció i el recolzament a la investigació
Análisis de las políticas europeas en la educación superior y algunos de sus efectos en el Grado de Educación Social de la Universidade da Coruña
[Resumen]
Este estudio se contextualiza en el Espacio Europeo de Educación Superior
y las políticas educativas sobre universidad desarrolladas en el marco de la
Unión Europea. Concretamente, las titulaciones de los distintos niveles
académicos se han estructurado en competencias para favorecer una mayor
transparencia y conexión con el mundo laboral.
En este contexto nuestro propósito ha sido descubrir si la estructura en
competencias del plan de Grado de Educación Social en la Universidade da
Coruña se está percibiendo como un medio para favorecer la empleabilidad
de sus titulados/as.
Para ello hemos desarrollado una investigación fundamentada en una
estrategia transformativa secuencial, constituida por las siguientes fases:
FASE 1, aproximación inicial para conocer cuál es la situación existente construyendo el planteamiento de la investigación y la elaboración del marco
teórico; FASE 2, desarrollo empírico, mediante un estudio cuantitativo y uno
cualitativo, con el fin de entender las razones que han conducido a la
implementación de este modelo, su viabilidad y su significado en la
universidad actual; FASE 3, discusión de resultados y triangulación; y por
último, FASE 4, conclusión y reflexión sobre sus limitaciones y prospectiva.[Resumo]
Este estudo enmárcase no Espazo Europeo de Educación Superior e as
políticas educativas sobre universidade desenvolvidas ao abeiro da Unión
Europea. Particularmente, a estrutura das titulacións dos distintos niveis
académicos configurouse en competencias para favorecer unha maior
transparencia e conexión co mundo laboral.
Neste contexto o noso propósito foi descubrir si a estrutura en competencias
do plan de Grao en Educación Social na Universidade da Coruña estase a
percebir como unha ferramenta que favorece a empregabilidade dos seus
titulados/as.
Con esta finalidade desenvolvemos unha investigación baseada nunha
estratexia transformativa secuencial, constituída polas seguintes fases:
FASE 1, aproximación inicial para coñecer cal é a situación existente,
construíndo a formulación da investigación e a elaboración do marco teórico;
FASE 2, desenvolvemento empírico, mediante un estudo cuantitativo e un cualitativo, co fin de entender as razóns que conduciron á aplicación deste
modelo, a súa viabilidade e o seu significado na universidade actual; FASE
3, discusión de resultados e triangulación; e para rematar, FASE 4,
conclusión e reflexión sobre as súas limitacións e prospectiva.[Abstract]
This study is contextualized in the European Higher Education Area and in
higher educational policies developed in the framework of the European
Union. Specifically, the different academic levels are structured in skills to
encourage greater transparency and connection to the workplace.
In this context, our aim has been to discover whether the structure of the
social Work Education Degree at the Coruña’ s University in skills has been
perceived as a means to promote the employability of its graduates.
So we've developed a research based on a sequential transformative
strategy consists of the following phases: PHASE 1, initial approach to know
what the situation, building approach to research and development of the
framework; PHASE 2, empirical development, using a quantitative and a
qualitative study in order to understand the reasons which led to the
implementation of this model, its feasibility and significance of current university; PHASE 3, discussion of results and triangulation; and finally,
PHASE 4, conclusion and reflection on their limitations and prospects
Architecture and evaluation of a unified V2V and V2I communication system based on cellular networks
Vehicle communications are becoming the cornerstone in the future vehicle equipment. More specifically, vehicle to vehicle communications (V2V) are the main object of researching nowadays, because vehicle to infrastructure (V2I) approximations are already being developed as commercial solutions. Cellular networks (CN) are usually applied in V2I solutions, whereas ad hoc networks are practically the only technology considered in V2V communications. Due to fact that CN are currently a reality and the operators are continuously improving the network, this communication technology could be considered as a candidate to deal with V2V necessities as well. The present paper defends the applicability of CN in the V2V field, and presents a novel communication paradigm for vehicles which unifies both V2V and V2I paradigms into one system. A peer to peer network technology has been used over the CN basis to create a group-based communication infrastructure which enables the message propagation among vehicles and between the car and the road side infrastructure. The architecture has been implemented in both hardware and software terms, and multitude of field tests have been carried out, whose main performance results are shown in the paper.The authors would like to thank the Spanish Ministerio the Educacion y Ciencia for sponsoring the research activities under the grant AP2005-1437, in frames of the FPU program, and to the financial support given by the European Spatial Agency (ESA) under the GIROADS 332599 project. Special thanks as well to the Spanish Ministerio the Fomento for its continuous support in vehicular researching
The complex structure of HH 110 as revealed from Integral Field Spectroscopy
HH 110 is a rather peculiar Herbig-Haro object in Orion that originates due
to the deflection of another jet (HH 270) by a dense molecular clump, instead
of being directly ejected from a young stellar object. Here we present new
results on the kinematics and physical conditions of HH 110 based on Integral
Field Spectroscopy. The 3D spectral data cover the whole outflow extent (~4.5
arcmin, ~0.6 pc at a distance of 460 pc) in the spectral range 6500-7000 \AA.
We built emission-line intensity maps of H, [NII] and [SII] and of
their radial velocity channels. Furthermore, we analysed the spatial
distribution of the excitation and electron density from [NII]/H,
[SII]/H, and [SII] 6716/6731 integrated line-ratio maps, as well as
their behaviour as a function of velocity, from line-ratio channel maps. Our
results fully reproduce the morphology and kinematics obtained from previous
imaging and long-slit data. In addition, the IFS data revealed, for the first
time, the complex spatial distribution of the physical conditions (excitation
and density) in the whole jet, and their behaviour as a function of the
kinematics. The results here derived give further support to the more recent
model simulations that involve deflection of a pulsed jet propagating in an
inhomogeneous ambient medium. The IFS data give richer information than that
provided by current model simulations or laboratory jet experiments. Hence,
they could provide valuable clues to constrain the space parameters in future
theoretical works.Comment: 12 pages, 15 figures Accepted in MNRA
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