The Scientific View of Sport

This thesis (written in Spanish) presents the analysis, design and implementation of a four-quadrant power supply with high-frequency isolation, which is expected to be used to feed the low-energy correction magnet of a particle accelerator. In particle accelerator applications the magnetic field during beam acceleration may be either positive or negative, and true bipolar power converters are needed. The selected bipolar topology consists of a bidirectional three-phase to single-phase reduced matrix converter (RMC) with power factor correction and a bidirectional active rectifier. Main...

Behind the appearance of an innovative vaccine there is a history of determination and struggle, of breaking established models, and of overcoming the mistrust that generates a new theory. In this book we are going to learn about those stories, the stories of great scientists who fought to prove new theories and are now behind vaccines that save or will save millions of lives. We will experience with them the moment when they discovered that they had defeated a virus. We will travel inside the infectious agents to learn about their ability to gain ground in humans, the biological tools they...

In August of 2005, scientists conducted a rapid inventory in Sierra del Divisor, a mountain range that rises up dramatically from the lowlands of central Amazonian Peru. This assessment, presented here in English and Spanish, collects their research on the plants and animals of the region as well as the social and cultural assets of local villages and their use and management of natural resources. The report includes recommendations for conservation and management, including steps to safeguard the voluntarily isolated indigenous people living in the region. Corine Vriesendorp is a...

“Caminitos de agua” se plantea como un conjunto de “rutas hidrogeológicas” con opción para visitar tres zonas de gran interés hidrogeológico y medioambiental en la provincia de Segovia, La Cubeta de Santiuste, El Carracillo y el qanat de Carbonero el Mayor. En la actualidad no hay acuñada ninguna “ruta hidrogeológica” como tal en nuestra legislación, sirva por tanto como un intento de ampliar los Lugares de Interés Geológico o iniciar el proceso para instaurar ese término, con objeto de dar a la hidrogeología la importancia que merece. La idea de crear la primera de las ...