Historia natural del Loro Tricahue en el norte de Chile

"The Higgs boson ... is the key to understanding why mass exists and how atoms are possible. After billions of dollars and decades of effort by more than six thousand researchers at the Large Hadron Collider in Switzerland--a doorway is opening into the mind-boggling world of dark matter and beyond. Caltech physicist and acclaimed writer Sean Carroll explains both the importance of the Higgs boson and the ultimately human story behind the greatest scientific achievement of our time"--Publisher.

¿Es posible recuperarse de un diluvio de noticias catastrofistas? ¿De qué manera podemos pasar del derrotismo a la esperanza? ¿Cómo podemos gestionar el colapso con inteligencia en el plano material, político, psicológico e incluso espiritual? Ya nadie duda de la situación crítica en la que se encuentra nuestro planeta, abocado a un desbordamiento global. Los colapsos están en marcha y con ellos sus manifestaciones morales y políticas. Una situación que enfrenta a nuestra generación a un dilema: o esperamos toda la fuerza y las consecuencias de futuros cataclismos o, para evitar...

Geographic Information Systems (GIS) play a pivotal role in the field of urban planning and management and provide better solutions for numerous urban problems. With GIS, one has the ability to better understand existing requirements of a city and its design to fulfill those needs. This book contributes to developing scientific knowledge based on geospatial technologies among planners, researchers, scientists, professionals, students, and laymen and providing them with better understanding for urban planning and management at various levels. The book manifests the importance of GIS in better...

A guide divided into two different parts: introduction to the concepts of tension and deformation, and the different characteristic problems of material strength. Students will find a well-selected help and an original treatment to usual questions, necessary for their formation.