Instrumentación y laboratorio. Manual de procedimientos básicos

En 1941 el profesor Richard Evans Schultes se internó en la selva amazónica, donde pasó los siguientes doce años de su vida explorando ríos que no figuraban en los mapas, recolectando plantas desconocidas para la ciencia y estudiando la sabiduría y las costumbres de docenas de tribus indígenas de Ecuador, Perú, Brasil, Bolivia, Venezuela y, particularmente, Colombia. Treinta años después dos de sus alumnos (Tim Plowman y Wade Davis) regresaron a estudiar los secretos botánicos de la coca, planta sagrada entre los incas. En homenaje a la memoria de uno de ellos se escribió este...

The section devoted to iron in this volume reflects the tremendous progress in the area. Specifically cluster chemistry, ligand transformations and detailed structural results are more prominent in COMC II. The organic chemistry of ruthenium and osmium is an area which has burgeoned during the period since the publication of COMC. This is especially true for the cluster chemistry of these elements, which have provided most of the advances in this important field. Consequently, this volume will include an update (1981-1993) of the chemistry of mono- and bi-nuclear complexes of ruthenium and...

A fin de estimular el interés y la imaginación del lector, el libro está profusamente ilustrado y escrito en un lenguaje comprensible e interesante, que propicia la labor del profesor y facilita el estudio, tanto a los estudiantes como a los profesionales.

Making knowledge about evolution available to everyone, this simple and entertaining book offers answers to the most frequently asked questions. Throughout the text, the reader is reminded of the importance of understanding evolutionary processes in order to approach present day human behavior, including social conduct, as well as the difficulty of trying to decipher the nature of modern human beings without going back to their zoological origin. Divided into two sections, the first one builds the foundation for the latter, which explains the evolution of life, beginning at the physical...