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Miguel Arenas Vargas, creador del método educativo que lleva su nombre, nació en la ciudad de México, Distrito Federal, el 14 de julio de 1940. Ha dedicado su vida a la formación de científicos independientes en pequeñas comunidades esparcidas en la periferia de la república mexicana a partir del reconocimiento que la sociedad mexicana, así como la de muchos países con economías en desarrollo necesitan de científicos para poder acceder a mejores condiciones de vida para sus habitantes. Al tratar de responder la pregunta: ¿Cómo aprende el hombre?, propone una revolución en la educación para la salud humana, la salud animal y el aprovechamiento de los recursos naturales, mediant...
Since the 2008 financial crisis the price of gold has sky-rocketed, from around $800 an ounce in August of that year to a peak of around $1700 an ounce. Fortunes have been made, and this has kicked off an unprecedented gold-mining and prospective boom around the world. In this book Matthew Hart takes readers on a journey around the world and through history to tell the story of how gold became the world's most precious commodity, the highlights of its dramatic, tempestuous history, and the behind-the-scenes intrigue of the current boom. He ends this controversial rollercoaster story by revealing what the experts are saying about the profound changes underway in the gold market and the prospects for the future.
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This is the first book to summarize the results of long-term field research at the major Maya site of Waka'. Bringing together findings from diverse research programs of the El Perú-Waka' Regional Archaeological Project, its fifteen wide-ranging contributions lead to a greater understanding of the richness and complexity of Classic-period Maya culture.
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