Observatory of sustainability in aviation. A contribution to Sustainable Development

El proyecto de creación del Observatorio de la Sostenibilidad en Aviación (OBSA) tiene como misión poner en funcionamiento un centro de referencia nacional para recopilar, analizar, evaluar y difundir la mejor información disponible sobre aviación y sostenibilidad, considerando sus tres dimensiones: social, económica y ambiental. Sus Objetivos son: ·Generar una herramienta útil para los procesos de toma de decisiones y de participación pública a través de la difusión de dicha información y de su evolución mediante el uso de indicadores. ·Constituir un instrumento de difusión de buenas prácticas, y de estímulo de las iniciativas en el sector de la aviación que permitan su crecimiento de forma sostenible. ·Establecer un foro de encuentro entre los reguladores, industria y sociedad, y una plataforma de comunicación al servicio de estos agentes. Para alcanzarlos, el Observatorio cuenta con la participación de los principales agentes del sector para fomentar la colaboración y compartir información y capacidadesThe aim of the Observatory of Sustainability in Aviation is to be a reference point on aviation and sustainability, for rigorous compilation, elaboration, analysis, evaluation and diffusion of the existing basic information on sustainability in the sector, considering the social, economic and environmental dimensions. The goals are: ·To generate a useful tool for public participation and decision making through the evaluation of this information, using models and indicators. ·To encourage initiatives in the aviation sector enhancing its sustainable growth. ·To establish a communication forum between stakeholders (regulators, industry and society). ·To share knowledge and best practices with other national and international organizations. To achieve these goals the Observatory is establishing partnership with Spanish and international aviation stakeholders to foster cooperation, share information and best available knowledgePeer Reviewe

Gran Colisionador de Hadrones (LHC)

106 páginas.-- Trabajo de divulgación que nos acerca al Large Hadron Collider (LHC - Gran Colisionador de Hadrones).Peer reviewe

Gravitational Lensing and the Power Spectrum of Dark Matter Substructure: Insights from the ETHOS N-body Simulations

Strong gravitational lensing has been identified as a promising astrophysical probe to study the particle nature of dark matter. In this paper we present a detailed study of the power spectrum of the projected mass density (convergence) field of substructure in a Milky Way-sized halo. This power spectrum has been suggested as a key observable that can be extracted from strongly lensed images and yield important clues about the matter distribution within the lens galaxy. We use two different $N$-body simulations from the ETHOS framework: one with cold dark matter and another with self-interacting dark matter and a cutoff in the initial power spectrum. Despite earlier works that identified $k \gtrsim 100$ kpc$^{-1}$ as the most promising scales to learn about the particle nature of dark matter we find that even at lower wavenumbers - which are actually within reach of observations in the near future - we can gain important information about dark matter. Comparing the amplitude and slope of the power spectrum on scales $0.1 \lesssim k/$kpc$^{-1} \lesssim 10$ from lenses at different redshifts can help us distinguish between cold dark matter and other exotic dark matter scenarios that alter the abundance and central densities of subhalos. Furthermore, by considering the contribution of different mass bins to the power spectrum we find that subhalos in the mass range $10^7 - 10^8$ M$_{\odot}$ are on average the largest contributors to the power spectrum signal on scales $2 \lesssim k/$kpc$^{-1} \lesssim 15$, despite the numerous subhalos with masses $> 10^8$ M$_{\odot}$ in a typical lens galaxy. Finally, by comparing the power spectra obtained from the subhalo catalogs to those from the particle data in the simulation snapshots we find that the seemingly-too-simple halo model is in fact a fairly good approximation to the much more complex array of substructure in the lens.Comment: 13 pages + appendices, 7 figure

To teach research we must begin by investigating: an experience in teacher education

Se describe una experiencia en formación inicial de maestros que parte de la propia actividad investigadora del alumno como oportunidad para la reflexión sobre nuestro propio proceso de aprendizaje, para proseguir con la reflexión sobre distintas experiencias de investigación globalizada del medio y con el aporte de referentes teóricos, y culminar con el diseño de una propuesta didáctica para el alumnado de Educación Infantil.This paper describes an experience in teacher education that starts on the student's own research activities as an opportunity for reflection on our own learning process; the experience follows with a reflection on different experiences of global environmental research and the contribution of theoretical references, and culminates in the design of a didactic proposal for kindergarten students