Políticas de la especie

The fear and the desolation that evaporize from the asphalt and embankment from the neighbor city at El Paso, Texas has turn Ciudad Juarez in a city of notorious fame. The deads, -some of them with names, a lot others without them-, still waiting that someone reply her, deaf deads, dumb authorities. The public opinion has its turn. Is our time to talk, suppose and expose solutions, guilties, ideas. From the elucidations of Watson and Crick, as far as seventies with the genetic revolution and the advances in molecular biology, we reach the nineties, where the human reproduction occupy a niche...

Un recorrido a lo largo de las aportaciones que la qu mica ha hecho a la humanidad, tanto en t rminos pragm ticos como de conocimiento de la naturaleza. Y, puesto que su prop sito es proporcionar una imagen til, informada e interesante de la que definen como "la ciencia de las transformaciones de la materia", se se ala de manera particular las contribuciones en este campo de la investigaci n en M xico y, vali ndose de recuadros que aparecen a lo largo de la obra, se explican con detalle t rminos usuales de la qu mica.

This volume covers the advances in the organometallic chemistry of nickel, palladium and platinum since publication of COMC in 1982. Major applications of the organometallic compounds of the nickel group are in catalytic and stoichiometric organic synthesis and in materials synthesis. This volume covers the fundamental organometallic chemistry which underpins these applications. The level of sophistication in many areas has increased substantially since COMC, for example in the development of chiral organometallics for use in synthesis, in the synthesis and characterization of larger cluster...

1 BookTeach literacy skills to early emergent Spanish-speaking students while reinforcing standards-based curriculum content.Also available in English.