We describe here the most ambitious survey currently planned in the optical, the Large Synoptic Survey Telescope (LSST). The LSST design is driven by four main science themes: probing dark energy and dark matter, taking an inventory of the solar system, exploring the transient optical sky, and mapping the Milky Way. LSST will be a large, wide-field ground-based system designed to obtain repeated images covering the sky visible from Cerro Pachón in northern Chile. The telescope will have an 8.4 m (6.5 m effective) primary mirror, a 9.6 deg 2 field of view, a 3.2-gigapixel camera, and six filters (ugrizy) covering the wavelength range 320-1050 nm. The project is in the construction phase and will begin regular survey operations by 2022. About 90% of the observing time will be devoted to a deep-wide-fast survey mode that will uniformly observe a 18,000 deg 2 region about 800 times (summed over all six bands) during the anticipated 10 yr of operations and will yield a co-added map to r∼27.5. These data will result in databases including about 32 trillion observations of 20 billion galaxies and a similar number of stars, and they will serve the majority of the primary science programs. The remaining 10% of the observing time will be allocated to special projects such as Very Deep and Very Fast time domain surveys, whose details are currently under discussion. We illustrate how the LSST science drivers led to these choices of system parameters, and we describe the expected data products and their characteristics.

This essay describes the domain of research in communication law and policy. It is based on a content analysis of research published in the journal Communication Law and Policy (1996)(1997)(1998)(1999)(2000)(2001)(2002)(2003)(2004), papers presented to the Communication Law and Policy Division at annual conferences of the International Communication Association (1997Association ( -2004, as well as consideration of other resources. The most frequent areas for research were media regulation, Internet policy, and freedom of expression issues. After reviewing recent literature on the first two topics, we identified and showcased two emergent categories deserving future attention: communication and the law (particularly fair trial-free press issues) and implications of the burgeoning consolidation of media ownership.

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Entre los grandes aportes realizados por la Unión Europea al derecho administrativo encontramos la aparición de la categoría jurídica de servicios de interés general y el desarrollo normativo, doctrinal y jurisprudencial de la categoría de servicios económicos de interés general, término que comprende aquellas industrias en redes que fueron sometidas a procesos de liberalización y de aplicación de las reglas del derecho de la competencia desde los años noventa, dejando de lado a otro tipo de servicios denominados ”servicios no económicos de interés general, o servicios públicos de solidaridad”, que están sometidos a la aplicación de lo dispuesto en el Tratado de Funcionamiento de la Unión Europea, pero siendo competencia de cada uno de los Estados miembros su delimitación, alcance y financiación. La crisis económica y la evolución propia que ha sufrido a la Unión Europea trae consigo la necesidad de efectuar una relectura de la naturaleza de estos servicios, atendiendo a la modernización de los servicios sociales como uno de uno de los principales retos europeos actuales y la misión fundamental de ser un mecanismo de cohesión social. Todos estos aspectos son desarrollados en la obra que dirige el profesor De la Quadra, donde se pretende hacer una revisión integral de esta categoría de servicios.