Astrofísica

La física moderna se encuentra ante la incómoda posición de obedecer a dos señores que no se hablan entre sí. Cuando se estudia lo microscópico las normas las dicta la teoría cuántica; en el ámbito de lo macroscópico la reina suprema es la relatividad. Los intentos por hallar una teoría subyacente que armonice ambas, la famosa "teoría del todo", se han topado una vez y otra con obstáculos insalvables. ¿Cuáles son las candidatas más plausibles a erigirse en ese Santo Grial de la ciencia?

Esta recopilación identifica y analiza brevemente los instrumentos internacionales que establecen normas relacionadas con el uso de antimicrobianos. El propósito de la compilación es identificar los instrumentos y normas existentes a fin de orientar su aplicación y para contribuir al desarrollo de futuros instrumentos internacionales relacionados con el uso de antimicrobianos. Abarca los sectores de la salud humana, animal y ambiental.

Following the overthrow of the classical world picture by the findings of quantum mechanics, physicists have proposed a broad gamut of alternative worldviews. The Quantum Enigma begins with the major recognition that each of these suffers from a certain residual Cartesianism that has been smuggled in unconsciously. It turns out that the moment this hidden and problematic premise is discarded, quantum theory begins to make sense in a way that it never has before. As the author shows, it is now possible, for the first time, to integrate the findings of quantum physics into a worldview that...

Behind the appearance of an innovative vaccine there is a history of determination and struggle, of breaking established models, and of overcoming the mistrust that generates a new theory. In this book we are going to learn about those stories, the stories of great scientists who fought to prove new theories and are now behind vaccines that save or will save millions of lives. We will experience with them the moment when they discovered that they had defeated a virus. We will travel inside the infectious agents to learn about their ability to gain ground in humans, the biological tools they...