Paisajes en un sector de la Quebrada de Humahuaca durante la Etapa Agroalfarera

While gangs and gang culture have been around for countless centuries, The Gang is one of the first academic studies of the phenomenon. Originally published in 1927, Frederic Milton Thrasher's magnum opus offers a profound and careful analysis of hundreds of gangs in Chicago in the early part of the twentieth century. With rich prose and an eye for detail, Thrasher looked specifically at the way in which urban geography shaped gangs and posited the thesis that neighborhoods in flux were more likely to produce gangs. Moreover, he traced gang culture back to feudal and medieval power systems...

This is the Spanish edition of "Growing Better Cities". The United Nations predicts that over the next 25 years nearly all population growth will be in the cities of the developing world. At current rates, 60% of the world's total population will live in cities by 2030. As the cities grow, so does the number of urban poor. Unemployment, hunger, and malnutrition are commonplace. In the big city, most of any cash income the poor might bring home goes to feeding themselves and staying alive; any food that does not have to be bought is a bonus. As a result, more and more people are attempting to...

Did you know that 5 minutes of remembered anger can depress your immune function for up to 6 hours? That your platelets get sticky with stress? That the telomeres on your DNA shorten and you age faster? This book is filled with stories, comments, suggestions, quotes and references to medical research rich in proving the psychological and physical benefits in healthy thinking and feeling good. You can look over the "new thoughts" at the end of each segment with an open mind and see if there are any you want to "test drive" in your life to change your heart variability pattern from jagged and...

«Tuvimos que combatir no solamente las pretensiones de hegemonía y la creencia en la superioridad, sino también las estrecheces del nacionalismo político, el proteccionismo autárquico, el aislamiento cultural. Fue necesario preparar las mentes para que aceptaran soluciones europeas y sustituir esas tendencias por la noción de solidaridad, es decir, por la convicción de que el verdadero interés de cada cual consiste en reconocer y aceptar en la práctica la interdependencia de todos. No se gana nada con el egoísmo. La contribución que una Europa organizada y viva puede aportar a la...