La construcción de las catedrales medievales

A fines del siglo XIX, el inglés Francis Galton acuñó el término eugenesia (del griego “buen nacer”) para designar el campo de conocimiento interesado en el estudio de las leyes de la herencia humana y de los métodos para mejorar la descendencia. Galton concibió la eugenesia como el camino para garantizar la selección artificial de rasgos psicofísicos deseables en los seres humanos con el fin de estimular la reproducción de personas sanas física y mentalmente, y limitar la de aquéllas consideradas de calidad “inferior”. Este libro analiza los fundamentos “científicos”...

El narcotráfico ha sido una de las cuestiones más cruciales en la historia reciente de México. Sin embargo, en torno a este fenómeno siguen existiendo malentendidos y medias verdades. Rubén Aguilar V. y Jorge G. Castañeda abordan el tema desde una perspectiva diferente, analizan la estrategia del actual gobierno en la llamada "guerra.

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute...

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute...