Cómo funcionan los ecosistemas

While the Great Depression was indisputably a difficult period in American history, it did lead to certain developments that we still benefit from today. One for the most significant examples of this is Social Security, which helps a whole generation of retired Americans. The book offers a concise description of the Great Depression, including analysis of its causes and its effects. Chapters focus on different aspects of the period, including culture, the arts, and science and technology. The dynamic design displays images of posters and experiences from the Depression era. This informative,...

The sordid, thrilling, and comic story of two young lovers--affluent Lala and impoverished Guayi; examines the economic and social circumstances of Argentina and Paraguay to make sense of the characters' past choices and present misfortunes.

A thoughtful discussion of violence in schools, complete with examples of incidents and suggestions for coping.

El Frente Polisario pretende crear un estado independiente en el Sahara Occidental. La comunidad internacional no puede aceptar una idea asi. Ese pretendido estado, situado en el limite occidental del Sahel, seria penetrado con gran facilidad por Al Qaeda en el Magreb Islamico junto a sus grupos secuaces dedicados a actividades criminales internacionales organizadas. Frente a ello la propuesta del Reino de Marruecos de un Estatuto de Autonomia, se ofrece como la mejor solucion, especialmente desde la perspectiva de la seguridad internacional, y responde a los anhelos de la poblacion Saharaui. ...