El uso de Twitter en las salas de redacción: redes sociales y newsmaking en la región sureste de Coahuila, México

The use of social network sites has increased in the newsmaking routines of media workers and journalists. Based on an online survey and a series of interviews, this paper shows some general trends about Internet usage and the way that some editors are handling Twitter as information source, in Southeastern Coahuila, México. Main results indicates that Internet is the most used media, and following Twitter allows them to keep track of potential breaking news, all sources verification procedures considered.El uso de las herramientas para la administración de redes sociales se está generalizando en algunas de las rutinas laborales de los trabajadores en los medios de comunicación, particularmente en los de carácter noticioso. Con base en una encuesta en línea y un conjunto de entrevistas, se presenta un panorama general del uso de Internet y de las redes sociales en una muestra no probabilística de reporteros, editores y dueños de medios de la región sureste de Coahuila; así como el tratamiento que un subgrupo de ellos le da a Twitter como fuente de información. Los principales resultados muestran que Internet es el medio al que dedican un mayor tiempo de consumo, y que Twitter es empleado como una herramienta que permite a los trabajadores de los medios, seguir asuntos de potencial interés periodístico, una vez que pasan por los procedimientos habituales de verificación de fuentes

The Ca II infrared triplet's performance as an activity indicator compared to Ca II H and K

Aims. A large number of Calcium Infrared Triplet (IRT) spectra are expected from the GAIA- and CARMENES missions. Conversion of these spectra into known activity indicators will allow analysis of their temporal evolution to a better degree. We set out to find such a conversion formula and to determine its robustness. Methods. We have compared 2274 Ca II IRT spectra of active main-sequence F to K stars taken by the TIGRE telescope with those of inactive stars of the same spectral type. After normalizing and applying rotational broadening, we subtracted the comparison spectra to find the chromospheric excess flux caused by activity. We obtained the total excess flux, and compared it to established activity indices derived from the Ca II H & K lines, the spectra of which were obtained simultaneously to the infrared spectra. Results. The excess flux in the Ca II IRT is found to correlate well with $R_\mathrm{HK}'$ and $R_\mathrm{HK}^{+}$, as well as $S_\mathrm{MWO}$, if the $B-V$-dependency is taken into account. We find an empirical conversion formula to calculate the corresponding value of one activity indicator from the measurement of another, by comparing groups of datapoints of stars with similar B-V.Comment: 16 pages, 15 figures. Accepted for publication in Astronomy & Astrophysic

Módulo online de cinemática como soporte a la enseñanza semipresencial de la Física en Ingeniería

Las nuevas tecnologías en materia de información y comunicación nos ofrecen las oportunidades para un mayor aprovechamiento de las herramientas y recursos, que permita mejorar el proceso de enseñanza-aprendizaje. Aprovechando las nuevas oportunidades que ofrecen medios como internet se diseñó y desarrolló un sistema hipermedial (website) denominado: programa SEHCP (Software Educativo Hipermedia Cinemática de la Partícula) como soporte al proceso de enseñanza-aprendizaje del tema Cinemática de la Partícula. El software fue utilizado por una muestra representativa de los tipos de destinatarios para los que fue diseñado y la consiguiente evaluación diagnóstica; la muestra estuvo conformada por alumnos de la asignatura Física Mecánica y alumnos del Curso Introductorio de la Facultad de Ingeniería de la Universidad de Carabobo-Venezuela

Exploring the assessment of territorial potential for social innovation: an indicator system applied to a region in Ecuador

One of the key elements in territorial dynamics processes is Social Innovation since we can improve our regional sustainable systems from the relationship and participation among territorial agents. However, this concept is still poorly explored and does not currently have a commonly-agreed definition and a complete assessment system, based on which strategies for improvement might be designed to guarantee regional sustainability. As a result, it has limited capacity for contributing to development. In accordance with the above, the main aim of this article is to explore the concept of Social Innovation and to asses it, designing a system of indicators capable of measuring territorial potential for social innovation, applicable to any region and adapting to its specificities and necessities. This work also aims to use a case study application, using a Ecuadorian region, to design an indicator assessment tool for social innovation, which integrates the main Social Innovation dimensions. This article makes contribution to the international debate on Social Innovation since it offers real input, potentially encouraging social change and the improvement of society’s wellbeing.27 página

Exploring the assessment of territorial potential for social innovation: an indicator system applied to a region in Ecuador

One of the key elements in territorial dynamics processes is Social Innovation since we can improve our regional sustainable systems from the relationship and participation among territorial agents. However, this concept is still poorly explored and does not currently have a commonly-agreed definition and a complete assessment system, based on which strategies for improvement might be designed to guarantee regional sustainability. As a result, it has limited capacity for contributing to development. In accordance with the above, the main aim of this article is to explore the concept of Social Innovation and to asses it, designing a system of indicators capable of measuring territorial potential for social innovation, applicable to any region and adapting to its specificities and necessities. This work also aims to use a case study application, using a Ecuadorian region, to design an indicator assessment tool for social innovation, which integrates the main Social Innovation dimensions. This article makes contribution to the international debate on Social Innovation since it offers real input, potentially encouraging social change and the improvement of society’s wellbeing

KMOS LENsing Survey (KLENS) : morpho-kinematic analysis of star-forming galaxies at z∼2z \sim 2

We present results from the KMOS lensing survey-KLENS which is exploiting gravitational lensing to study the kinematics of 24 star forming galaxies at $1.4<z<3.5$ with a median mass of $\rm log(M_\star/M_\odot)=9.6$ and median star formation rate (SFR) of $\rm 7.5\,M_\odot\,yr^{-1}$. We find that 25% of these low-mass/low-SFR galaxies are rotation dominated, while the majority of our sample shows no velocity gradient. When combining our data with other surveys, we find that the fraction of rotation dominated galaxies increases with the stellar mass, and decreases for galaxies with a positive offset from the main sequence. We also investigate the evolution of the intrinsic velocity dispersion, $\sigma_0$, as a function of the redshift, $z$, and stellar mass, $\rm M_\star$, assuming galaxies in quasi-equilibrium (Toomre Q parameter equal to 1). From the $z-\sigma_0$ relation, we find that the redshift evolution of the velocity dispersion is mostly expected for massive galaxies ($\rm log(M_\star/M_\odot)>10$). We derive a $\rm M_\star-\sigma_0$ relation, using the Tully-Fisher relation, which highlights that a different evolution of the velocity dispersion is expected depending on the stellar mass, with lower velocity dispersions for lower masses, and an increase for higher masses, stronger at higher redshift. The observed velocity dispersions from this work and from comparison samples spanning $0<z<3.5$ appear to follow this relation, except at higher redshift ($z>2$), where we observe higher velocity dispersions for low masses ($\rm log(M_\star/M_\odot)\sim 9.6$) and lower velocity dispersions for high masses ($\rm log(M_\star/M_\odot)\sim 10.9$) than expected. This discrepancy could, for instance, suggest that galaxies at high-$z$ do not satisfy the stability criterion, or that the adopted parametrisation of the specific star formation rate and molecular properties fail at high redshift.Comment: Accepted for publication in A&A, 21 pages, 10 figure

Gangrena gaseosa: revisión de cuatro casos

Desde el mes de enero de 1988 hasta diciembre de 1993, hemos atendido en el Servicio de Cirugía Ortopédica y Traumatología 6.853 pacientes, de ellos 263 presentaron infecciones post-quirúrgicas, post-traumáticas o expontáneas. Del total de infecciones cuatro se manifestaron como un cuadro clínico de gangrena gaseosa. El origen fue post-traumático en tres casos y por arma de fuego en uno, localizándose la enfermedad en todos los pacientes en las extremidades inferiores. Para establecer el diagnóstico además de las manifestaciones clínicas se ha valorado el resultado bacterológico y anatomo-patológico de las muestras analizadas. El tratamiento consistió en Cirugía precoz, antibioticoterapia y oxigenoterapia hiperbárica cuando era necesario. La evolución ha sido buena en dos casos y desfavorable en el resto de los enfermos.From January 1988 to December 1993, we have seen in our institution 6853 patients, 263 of them presented post-surgical, post-traumatic or spontaneus infections. Of the total of infections, four of them were manifested as clinical cases of gaseous gangrene. The origin was post-traumatic in three cases, and gun shot in one case, localizing the disease in all patients in inferior extremities. For diagnosis clinical manifestations and the bacteriological and patologic results were evaluated. The treatment consisted of early surgery, antibiotical therapy and hiperbaric oxigenotherapy when it was necessary. The outcome was satisfactory in two cases and non favorable in the other two patients

Can we influence the neurological development and hair cortisol concentration of offspring by reducing the stress of the mother during pregnancy? A randomized controlled trial

Producción CientíficaThe objective was to evaluate the effects of a stress management cognitive behavioural therapy followed during pregnancy on subsequent childhood on hair cortisol at birth and on neurodevelopment and Hair Cortisol Concentrations (HCC) at 6 months of age. The study sample included 48 pregnant women, divided into two groups: 24 women in the Therapy Group (TG) and 24 women who received standard pregnancy care (control group (CG); CG). To test the therapy efficacy, an evaluation of the HCC and psychological stress, psychopathological symptomatology and resilience was conducted before and after the treatment. The level of cortisol in their hair was obtained during pregnancy and that of their babies at birth. Six months after birth, a cortisol sample was taken from the hair and the babies' neurodevelopment was evaluated based on a Bayley-III test. The TG presented reductions in psychological stress and psychopathological symptomatology after treatment. On the other hand, the CG increased their cortisol concentrations between the pre and post intervention, remaining stable in the TG. Moreover, results showed that TG babies had lower cortisol concentrations at birth and obtained significantly higher cognitive and motor development scores at 6 months. These findings support that providing psychological care to pregnant women may not only have a benefit on these women's mental state, but may also benefit the neurodevelopment of their offspring.Ministerio de Ciencia, Innovación y Universidades, (programa FPU, referencia 18/00617