Libros de ciencias, página 5 de 2692

Describes water chemistry, technology and the biological and physical processes of the aquarium ecosystem. Additionally, it presents fish physiology, nutrition, diseases and health maintenance. Provides usable methods and specific protocols for keeping marine fish with the emphasis on professional approaches for public aquariums.

Handbook of Approximation Algorithms and Metaheuristics, Second Edition reflects the tremendous growth in the field, over the past two decades. Through contributions from leading experts, this handbook provides a comprehensive introduction to the underlying theory and methodologies, as well as the various applications of approximation algorithms and metaheuristics.Volume 1 of this two-volume set deals primarily with methodologies and traditional applications. It includes restriction, relaxation, local ratio, approximation schemes, randomization, tabu search, evolutionary computation, local search, neural networks, and other metaheuristics. It also explores multi-objective optimization, reoptimization, sensitivity analysis, and stability. Traditional applications covered include: bin packing, multi-dimensional packing, Steiner trees, traveling salesperson, scheduling, and related problems.

Los números han formado la mayoría de las culturas. Transformaron los patrones humanos de subsistencia, dieron una posibilidad de expansión y de dominio sobre nuestro entorno a la vez que permitieron el impulso de otras tecnicas como la agricultura, la astronomia y posteriormente la arquitectura (babilonios, sumerios, egipcios...), esenciales del saber humano e inconcebibles sin la especulacion numerica. Por todo ello, Everett defiende que los numeros han cambiado directa o indirectamente las culturas y el saber humano, tanto en su vertiente social como espiritual. Asi como los ojos nos permiten diferenciar la luz y movernos por el mundo fisico que nos rodea, los numeros nos ayudan a posicionarnos en el, a diferenciar sus cantidades y concebir nuevas conceptualizaciones para comprenderlo, abarcarlo. Esta obra se presenta como un estudio hibrido de antropologia, linguistica y psicologia de los numeros y su importancia.

The idea that nature provides services to people is one of the most powerful concepts to have emerged over the last two decades. It is shaping our understanding of the role that biodiverse ecosystems play in the environment and their benefits for humankind. As a result, there is a growing interest in operational and methodological issues surrounding ecosystem services amongst environmental managers, and many institutions are now developing teaching programmes to equip the next generation with the skills needed to apply the concepts more effectively. This handbook provides a comprehensive reference text on ecosystem services, integrating natural and social science (including economics). Collectively the chapters, written by the world''s leading authorities, demonstrate the importance of biodiversity for people, policy and practice. They also show how the value of ecosystems to society can be expressed in monetary and non-monetary terms, so that the environment can be better taken into account in decision making. The significance of the ecosystem service paradigm is that it helps us redefine and better communicate the relationships between people and nature. It is shown how these are essential to resolving challenges such as sustainable development and poverty reduction, and the creation of a green economy in developing and developed world contexts.

This text''s clear explanations and descriptions of the mechanisms of chemical reactions teach students how to apply principles in order to predict the outcomes of reactions. The Fifth Edition offers a focus on biological applications that renders the text accessible to the majority of organic chemistry students and consistent with the interdisciplinary nature of scientific research."One Small Step" features apply familiar concepts to new reagents and reactions, encouraging students to analyze material rather than memorize the outcome to each new reaction."Visualizing the Reaction" features help students recognize important reactions by demonstrating the complete mechanisms for each type of reaction. HM ClassPrep with HM Testing CD-ROM includes lecture outlines and line art from the textbook in PowerPoint, the Computerized Test Bank and the Word files of the Test Bank in a new, easy-to-use interface with complete cross-platform flexibility, electronic versions of materials from the Instructor''s Resource Manual, and a transition guide that directs instructors through this new edition.

En un pasado remoto la naturaleza se nos aparecía como algo incomprensible, gobernado por el antojo de los dioses. Durante siglos los científicos fueron rastreando regularidades en ella, hasta que creyeron haber descubierto unas leyes que prescribian el movimiento de cada particula del universo con exactitud y para siempre: el mundo era como un mecanismo de relojeria. En el siglo XX esta vision comenzo a cuartearse, y la incertidumbre y el azar se introdujeron en ella. Los sistemas no siempre actuaban como estaba previsto y las nociones de prediccion y experimento adquirieron aspectos intranquilizadores. El reloj se estaba desarmando, y la ley y el orden eran reemplazados, como diria Einstein, por un Dios que juega a los dados. El profesor Stewart parte de ahi para llevarnos hacia una nueva concepcion de la regularidad la de la matematica del caos- que da sentido a la complejidad de la vida real: desde las inexplicables volteretas de un satelite de Saturno a los latidos de nuestro corazon, desde la prevision meteorologica al crecimiento de las poblaciones de insectos. Se trata nos dice el autor- de un mundo nuevo, un nuevo tipo de matematica, un descubrimiento fundamental en la comprension de las irregularidades de la naturaleza. Conceptos como el de fractal no solo sirven para entender como se ha creado la cosmografia imaginaria de La guerra de las galaxias, sino que resultan hoy indispensables para captar la textura de la realidad. Lo admirable es que Stewart acierta a explicarlo con sencillez, recurriendo al ejemplo o a la anecdota, sin utilizar formulaciones matematicas ni recurrir a la jerga del especialista. Este es un libro que resulta francamente entretenido, pero que nos enriquecera ademas, con una vision enteramente renovada del mundo y de la ciencia.

Ningún personaje de ficción es más conocido por sus poderes de intuición y observación que Sherlock Holmes. Pero, ¿es su inteligencia extraordinaria una invención de la ficción o podemos aprender a desarrollar estas habilidades, para mejorar nuestras vidas en el trabajo y en casa?A traves de ¿Como pensar como Sherlock Holmes?, la periodista y psicologa Maria Konnikova nos desvela las estrategias mentales que nos pueden conducir a un pensamiento mas claro y un conocimiento de nuestro entorno mas profundo. Basandose en los descubrimientos de la neurociencia y la psicologia, este libroexplora los metodos unicos de Holmes para alcanzar la atencion plena, unas dotes de observacion extraordinarias y una incomparable capacidad de deduccion logica.¿Como pensar como Sherlock Holmes?,muestra como cualquiera de nosotros, con autoconciencia y un poco de practica, puede utilizar estos metodos para mejorar nuestra percepcion, resolver problemas dificiles y desarrollar nuestra creatividad.

Now in its eighth edition, Fundamentals of Thermodynamics continues to offer a comprehensive and rigorous treatment of classical thermodynamics, while retaining an engineering perspective. With concise, applications-oriented discussion of topics and self-test problems the text encourages students to monitor their own comprehension. The eighth edition is updated with additional examples and end-of-chapter problems to increase student understanding. In addition, front-end Learning Objectives have been added.The text lays the groundwork for subsequent studies in fields such as fluid mechanics, heat transfer and statistical thermodynamics, and prepares students to effectively apply thermodynamics in the practice of engineering.

With a population of more than eighteen million people, Mexico City is a major metropolitan area where the effects of urban development on air quality are of immediate concern. Air pollution exposures and effects on forests in the Mexico City Air Basin are in many respects similar to those reported in the Los Angeles, California Air Basin. Studies of air pollution impacts on forests in these two regions may serve as models for urban areas all over the world. Although scientists have studied air pollution and its effects on forests and vegetation in the Mexico City Air Basin for years, this book reviews and synthesizes this body of work for the first time. This synthesis is particularly valuable as air pollution increases at an alarming rate along with global urbanization. A thorough discussion of regional geology, climate and hydrology, historical natural resource utilization, and sociological factors provide the context for evaluating air pollution impacts on the highly valued forests surrounding this megacity. The environmental and ecological consequences of chronic exposure to biologically important pollutants are considered in various case studies. Finally, the editors discuss the state of air pollution research in the Mexico City Air Basin and the outlook for the health and sustainability of forests within the Basin.

¿Has oído hablar de esa dieta milagrosa que purifica los riñones y el hígado, con la que adelgazas cinco kilos en dos semanas y que te deja un cutis nivel Hollywood? Sí, esa. O la que propone una monja que cura el cancer, o las recetas de un actor de moda gracias a las cuales vencio la diabetes y la alopecia... El Chef Cabreado tambien ha oido hablar de esas dietas, y por eso esta furioso. Por eso ha escrito un libro lleno de datos y claves para que no te tomen el pelo en el que azota a vendemiedos, profetas y gurus que hacen caja con pseudociencias de la nutricion. Un libro lleno de humor, informacion, anecdotas y varapalos a las dietas detox, paleos, alcalinas y demas soplapolleces pseudocientificas de los tiempos que corren.

This two volume reference set covering the Northern and Southern Hemispheres provides a comprehensive description of the evolution and diversity of the arborescent gymnosperms illustrated with distribution maps form silhouettes and a wealth of colour plates Invaluable to researchers in palaeobotany geobiology and evolutionary biology

This two volume reference set covering the Northern and Southern Hemispheres provides a comprehensive description of the evolution and diversity of the arborescent gymnosperms illustrated with distribution maps form silhouettes and a wealth of colour plates Invaluable to researchers in palaeobotany geobiology and evolutionary biology