On the origin of two unidentified radio/X-ray sources discovered with XMM-Newton

We aim at clarifying the nature of the emission of two spatially related unidentified X-ray sources detected with XMM-Newton telescope at intermediate-low Galactic latitude. Observations reveal a point-like source aligned with elongated diffuse emission. The X-ray spectra are best-fitted by absorbed power laws with photon indices ~1.7 for the point-like and ~2.0 for the extended one. Both sources show nonthermal radio-continuum counterparts that might indicate a physical association. From the available data, we did not detect variability on the point-like source in several timescales. Two possible scenarios are analyzed: first, based on HI line absorption, assuming a Galactic origin, we infer a distance upper bound of <2 kpc, which poses a constraint on the height over the Galactic plane of <200 pc and on the linear size of the system of 10^32 erg/s and >7.5 x 10^32 erg/s, for the point-like and extended sources, respectively; second, an extra-Galactic nature is discussed, where the point-like source might be the core of a radio galaxy and the extended source its lobe. In this case, we compare derived fluxes, spectral indices, and spatial correlation with those typical from the radio galaxy population, showing the feasibility of this alternative astrophysical scenario. From the available observational evidence, we suggest that the most promising scenario to explain the nature of these sources is a system consisting of a one-sided radio galaxy, where the point-like source is an active galactic nucleus and the extended source corresponds to the emission from its lobe. Other possibilities include a PSR/PWN origin, where the radio/X-ray emission originates from the synchrotron cooling of relativistic particles in the PSR magnetic field or a casual alignment between two unrelated sources, such as an AGN core and a Galactic X-ray blob.Comment: 6 pages, 2 figures. Accepted for publication in Astronomy and Astrophysics (A&A

THROES: a caTalogue of HeRschel Observations of Evolved Stars. I. PACS range spectroscopy

This is the first of a series of papers presenting the THROES (A caTalogue of HeRschel Observations of Evolved Stars) project, intended to provide a comprehensive overview of the spectroscopic results obtained in the far-infrared (55-670 microns) with the Her- schel space observatory on low-to-intermediate mass evolved stars in our Galaxy. Here we introduce the catalogue of interactively reprocessed PACS (Photoconductor Array Camera and Spectrometer) spectra covering the 55-200 microns range for 114 stars in this category for which PACS range spectroscopic data is available in the Herschel Science Archive (HSA). Our sample includes objects spanning a range of evolutionary stages, from the asymptotic giant branch to the planetary nebula phase, displaying a wide variety of chemical and physical properties. The THROES/PACS catalogue is accessible via a dedicated web-based inter- face (https://throes.cab.inta-csic.es/) and includes not only the science-ready Herschel spectroscopic data for each source, but also complementary photometric and spectroscopic data from other infrared observatories, namely IRAS (Infrared Astronomical Satellite), ISO (Infrared Space Observatory) or AKARI, at overlapping wavelengths. Our goal is to create a legacy-value Herschel dataset that can be used by the scientific community in the future to deepen our knowledge and understanding of these latest stages of the evolution of low-to-intermediate mass stars.Comment: 38 page

Effectiveness and cost-effectiveness of a solution-focused intervention in child protection services

The purpose of this research was to evaluate the impact on child welfare of introducing solution-focused principles and intervention techniques in the local child protection service of the island of Tenerife, Spain. 152 workers from 34 local child protection teams participated in the study. Goal achievement, parent's and children’s self-reported well-being, and statutory child welfare measures were recorded during one year. Then the child protection teams were randomly assigned to a control or an experimental condition. 73 workers in the experimental condition, serving 271 families, received 30 h of training and 30 h of supervision in solution-focused brief therapy (SFBT). 79 workers in the control condition, serving 206 families, continued to intervene as usual. The dependent variables were evaluated again in the experimental and in the control group one year after the supervision in SFBT had finished. Results indicate that the experimental and the control group had equivalent outcomes at pre-test. At post-test, the experimental group achieved better outcomes than the control group: workers’ and parents’ goal achievement ratings as well as parents’ and children well-being ratings were higher, fewer cases had been referred to risk teams, fewer children had been removed from their homes and recidivism was lower. The effects were small for goal achievement, medium for recidivism, and large for well-being and child removal. The teams that used SFBT reached these outcomes with fewer sessions and allocating fewer additional resources than the control group.This study was partially supported by a grant of the European Brief Therapy Association (EBTA) and by a grant of the Spanish Federation of Family Therapy Associations (FEATF). Open access funding provided by Universidad Pública de Navarr

Existence of homoclinic connections in continuous piecewise linear systems

Altres ajuts: Conserjería de Educación y Ciencia de la Junta de Andalucía (TIC-0130, EXC/2005/FQM-872, P08-FQM-03770)Altres ajuts: Universitat de les Illes Balears grant UIB2005/6 and by CAIB grand number CEH-064864Numerical methods are often used to put in evidence the existence of global connections in differential systems. The principal reason is that the corresponding analytical proofs are usually very complicated. In this work we give an analytical proof of the existence of a pair of homoclinic connections in a continuous piecewise linear system, which can be considered to be a version of the widely studied Michelson system. Although the computations developed in this proof are specific to the system, the techniques can be extended to other piecewise linear systems

Formación profesional: necesidades y demandas en la provincia de Córdoba en el contexto nacional e internacional

Este artículo analiza la relación, en la actualidad, entre las demandas formativas del sector productivo provincial y las respuestas que a ellas se da desde el sector educativo, en particular desde los Centros de Desarrollo Regional en la provincia de Córdoba (CEDER). Para ello, se caracteriza el escenario socio-político-económico actual y se identifican las principales tendencias teórico-prácticas derivadas de los procesos simultá­neos y a veces contradictorios- de planetarización, mundialización y globalización. En ese contexto, se presentan las políticas públicas referidas a la formación profesional llevadas a cabo en nuestro país en general y en Córdoba en particular. Todo lo anterior se completa con información referida a las necesidades y demandas de formación de las distintas regiones de nuestra provincia

La medicina y la enfermedad en Alfonso Reyes

En este ensayo se analizan los síntomas, las enfermedades y las terapias que sufrió el escritor mexicano Alfonso Reyes, reconocido como uno de los escritores más importantes de habla hispana. Se revisa su biografía, que muestra la evolución de sus síntomas cardiovasculares y se documentan las patologías principales que tuvo a lo largo de su vida. Algunas de las enfermedades que sufrió Alfonso Reyes influyeron en su creación literaria, y su condición de enfermo constante lo llevó a reflexiones nada casuales, siendo un ejemplar paciente. Abstract: In this essay, the symptoms, diseases and therapies that the Mexican writer Alfonso Reyes suffered are analyzed. In addition, his biography is reviewed, which shows the evolution of his cardiovascular symptoms and the main diseases and surgeries that he had throughout his life. The diseases suffered by Alfonso Reyes influenced his literary creation and, because of his constant diseases, he made very non-casual l reflections. He was also an exemplary patient

The Zero-Removing Property and Lagrange-Type Interpolation Series

The classical Kramer sampling theorem, which provides a method for obtaining orthogonal sampling formulas, can be formulated in a more general nonorthogonal setting. In this setting, a challenging problem is to characterize the situations when the obtained nonorthogonal sampling formulas can be expressed as Lagrange-type interpolation series. In this article a necessary and sufficient condition is given in terms of the zero removing property. Roughly speaking, this property concerns the stability of the sampled functions on removing a finite number of their zeros