50 temas cruciales sobre el mar

This volume provides a comprehensive overview of current researches on science in the Muslim-Arab world. The papers deal with the religious and institutional context, mathematics, optics, astronomy, mechanics, natural philosophy, and pharamacology.The present volume also includes a general author index of the 21 volumes that make up the proceedings of the XXth International Congress of History of Science.

El domingo 16 de junio de 2019, un apagón dejó sin luz a cincuenta millones de personas en la Argentina e hizo que advirtiéramos, por unas horas, la importancia de la energía en nuestras vidas. Nunca como ahora fue tan evidente la necesidad de colocar en la agenda el derecho a la energía, por su impacto en los servicios públicos y en las condiciones de vida de los sectores medios y populares. Y de discutir en serio, en medio del colapso ambiental, la transición de un modelo basado en combustibles fósiles (en declive y altamente contaminantes) hacia uno basado en energías renovables....

The Smart Neanderthal casts a new light on the Neanderthals and the "Cognitive Revolution". Finlayson argues that there was no revolution and, instead, modern behavior arose gradually and independently among different populations of Modern Humans and Neanderthals, raising questions about who we really are.

In previous volumes in this series, Advances in Metal and Semiconductor Clusters, the focus has been on atomic clusters of metals, semiconductors and carbon. Fundamental gas phase studies have been surveyed, and most recently scientists have explored new materials which can be produced from clusters or cluster precursors. In this latest volume, the focus shifts to clusters composed primarily of non-metal molecules or atoms which have one or more metal atoms seeded into the cluster as an impurity. These clusters provide model systems for metal ion solvation processes and metal-ligand...