Libros de ciencias, página 431 de 2360

When this innovative textbook first appeared in 1984, it rapidly became a great success throughout the world and has already been translated into several European and Asian languages. Now, the authors have completely revised and updated the text, including more than 2000 new literature references to work published since the first edition. No page has been left unaltered but the novel features which proved so attractive have been retained. The book presents a balanced, coherent and comprehensive account of the chemistry of the elements for both undergraduate and postgraduate students. This crucial central area of chemistry is full of ingenious experiments, intriguing compounds and exciting new discoveries. The authors specifically avoid the term ''inorganic chemistry'' since this evokes an outmoded view of chemistry which is no longer appropriate in the final decade of the 20th century. Accordingly, the book covers not only the ''inorganic'' chemistry of the elements, but also analytical, theoretical, industrial, organometallic, bio-inorganic and other cognate areas of chemistry.The authors have broken with recent tradition in the teaching of their subject and adopted a new and highly successful approach based on descriptive chemistry. The chemistry of the elements is still discussed within the context of an underlying theoretical framework, giving cohesion and structure to the text, but at all times the chemical facts are emphasized. Students are invited to enter the exciting world of chemical phenomena with a sound knowledge and understanding of the subject, to approach experimentation with an open mind, and to assess observations reliably. This is a book that students will not only value during their formal education, but will keep and refer to throughout their careers as chemists. It is completely revised and updated, has a unique approach to the subject, and is more comprehensive than competing titles.

Designed for the two-semester general chemistry course, Chang's textbook has often been considered a student favorite. This best-selling textbook takes a traditional approach. It features a straightforward, clear writing style and proven problem-solving strategies. The strength of the eighth edition is the integration of many tools that are designed to inspire both students and instructors. The textbook is the foundation for the technology. The multi-media package for the new edition stretches students beyond the confines of the traditional textbook.

The acknowledged leader and standard in general chemistry, this book maintains its effective and proven features—clarity of writing, scientific integrity, currency, strong exercises, visual emphasis and consistency in presentation. It offers readers an integrated educational solution to the challenges of the learning with an expanded media program that works in concert with the book, helping them to approach problem solving, visualization, and applications with greater success. Chapter topics cover: Matter and Measurement; Atoms, Molecules, and Ions; Stoichiometry: Calculations with Chemical Formulas and Equations; Aqueous Reactions and Solution Stoichiometry; Thermochemistry; Electronic Structure of Atoms; Periodic Properties of the Elements; Basic Concepts of Chemical Bonding; Molecular Geometry and Bonding Theories; Gases; Intermolecular Forces, Liquids, and Solids; Modern Materials; Properties of Solutions; Chemical Kinetics; Chemical Equilibrium; Acid-Base Equilibria; Additional Aspects of Equilibria; Chemistry of the Environment; Chemical Thermodynamics; Electrochemistry; Nuclear Chemistry; Chemistry of the Nonmetals; Metals and Metallurgy; Chemistry of Coordination Compounds; and The Chemistry of Life: Organic and Biological Chemistry. For individuals interested in the study of general chemistry.

Timberlake's Chemistry: An Introduction to General, Organic, and Biological Chemistry is designed to help prepare students for health-related careers, such as nursing, dietetics, respiratory therapy, and environmental or agricultural science. Assuming no prior knowledge of chemistry, it aims to make this course an engaging and positive experience by relating the structure and behavior of matter to its role in health and the environment. Timberlake maintains the clear, friendly writing style and the real-world, health-related applications that have made this text a leader in the discipline. The Eleventh Edition introduces more problem-solving strategies-including new Concept Checks, more Guides to Problem Solving, and more conceptual, challenge, and combined problems.

La Política Agraria Común (PAC) es una política comunitaria que beneficia a la totalidad de los europeos, que aporta "valor añadido" comunitario y que ha jugado un papel fundamental en el proceso de consolidacion de la UE. Sus objetivos, confirmados en el Tratado de Lisboa, siguen vigentes: mantener una actividad agraria sostenible en todo el territorio, conservando el medio ambiente y el paisaje, y proporcionar alimentos suficientes y de calidad, asi como contribuir al desarrollo sostenible.El presente libro establece las bases para el estudio de la evolucion de la Politica Agraria Comun en los años venideros. En su primera parte aborda la situacion actual con el estudio de la PAC recien reformada tras el "Chequeo Medico", sus opciones de aplicacion en España y otros paises. Se hace especial hincapie en los programas de apoyo que del actual articulo 68 del Reglamentos de Pagos Directos, (Reglamento (CE) nº 73/2009 del Consejo, de 19 de enero de 2009) se derivan. Se constata que ahora tenemos una PAC mas solida, legitima y preparada, tanto para el ejercicio de revision del presupuesto comunitario como para reforzar compromisos internacionales en el ambito de la Organizacion Mundial de Comercio (OMC). Es en este punto donde la presente obra enlaza con el futuro, con las decisiones que habra que tomar tras 2013, fruto sin duda del acuerdo que alcance la Union Europea en materia presupuestaria dentro de las nuevas perspectivas financieras.

El 2021 coincide con el 35º aniversario del accidente nuclear de Chernóbil y el 10º de Fukushima, un año importante que invita a reflexionar sobre el paso del tiempo en relación a la huella ecológica que produce la radioactividad.Las plantas, al igual que los seres humanos, tienen conciencia y pueden crecer ante la adversidad. Pueden incluso sobrevivir ante una catastrofe nuclear como la de Chernobil. Los rayogramas de Anais Tondeur reunidos en este extraordinario herbario buscan captar el trauma sufrido por los vegetales al haber sido sometidos a una fuerte radiacion y documentan la resiliencia de las semillas que han crecido en la zona de exclusion.Cada imagen va acompañada de una meditacion filosofica de Michael Marder que, a su vez, testimonia como nuestra biosfera es un unico y grande ser vivo. El desastre nuclear altero las plantas, los animales, los cuerpos y tambien la conciencia del hombre.Los Fragmentos de una conciencia explotada de Marder hilan la narracion de este herbario que nos invita a repensar la naturaleza y nuestra relacion con el medioambiente desde la perspectiva vegetal.