Química inorgánica

Presented as a catalogue, the authors provide complete and true information about endangered Mexican Freshwater fishes. A physical and ethological description, the reason of its involvement in the book, preservation state, natural history and ecology, as well as a map with its geographical location in Mexico, and a picture of the specie is provided for each fish. This book is a start point for the knowledge and preservation of the richness of this biological group.

Students are introduced to the basic concepts of Organic Chemistry. The text is completed with some concrete aspects that allow to prove the great importance of this subject in both, everyday and industrial worlds.

Ciertamente esta etapa de la vida supone un equilibrio inestable entre cabeza, corazón y desarrollo de las capacidades propias. Los procesamientos cognitivos, emocionales y ejecutivos tienen diferente velocidad, y su maduración lleva diferente ritmo. Integrar estos sistemas y regularlos requiere estrategias adecuadas de control. Con un lenguaje sencillo, la autora introduce al lector en el complejo proceso de maduración del cerebro humano. La herencia genética se combina aquí con las vivencias personales, en un esfuerzo para integrar cabeza y corazón. Ese será el reto de todo...

In the framework of the 20th International Congress of History of Science (Liege 1997), a symposium was devoted to the historical work of Adolph P. Youschkevitch (1906-1993). The present volume includes the papers read during the symposium as well as contributions on current issues in the history of mathematics: mathematics as a cultural strength, mathematics from antiquity to the classical period, probability theory and its applications, mathematics in the 19th and 20th centuries.