Libros de ciencias, página 7 de 2615

En octubre de 2017, científicos del observatorio Haleakala, en Hawái, detectaron un objeto interestelar en movimiento próximo a la Tierra. Primero fue catalogado de cometa, pero esta hipótesis fue descartada.Llamado Oumuamua, mensajero o explorador en hawaiano, finalmente fue catalogado como asteroide, si bien su forma y su comportamiento diferian del resto de los asteroides y cometas de nuestro sistema solar. Cuanto mas lo observaban los cientificos, mas extraño les parecia. Cuando Avi Loeb, catedratico de Astronomia de Harvard, sugirio que Oumuamua era la evidencia de vida y tecnologia extraterrestre en el espacio, se desato el que probablemente sea el debate cientifico mas relevante en decadas.En este libro, Loeb presenta por primera vez su teoria al gran publico y nos ofrece un fascinante viaje por el universo desde los origenes del tiempo, del espacio y de la vida.

Desde «la mano invisible» de Adam Smith hasta las más novedosas investigaciones que vinculan economía, salud y felicidad, Edward Conway nos explica puntualmente los temas esenciales para entender cóm

La curiosidad por conocer los secretos del Universo es tan antigua como el propio hombre. La astrofísica ha sido la ciencia que ha desvelado estos secretos, y ha permitido avanzar en la concepción del Universo: el descubrimiento de los planetas, el modelo heliocentrico, la ley de la gravedad Si la historia de estos descubrimientos es apasionante, los descubrimientos hechos en los ultimos años abren perspectivas insospechadas.La fisica y editora Joanne Baker nos ofrece una panoramica de la astrofisica para el lector que, sin ser un especialista en ciencia, este interesado por conocer como funciona el Universo. Ademas de un repaso a los conceptos esenciales, se explican de manera clara y concisa los ultimos descubrimientos sobre esta materia. En que consisten los agujeros negros, cuales son las consecuencias de la teoria de la relatividad, como se formula la teoria de las cuerdas, como podemos saber que el Universo se encuentra en expansion Este libro da respuesta a estas y otras preguntas que no dejan de fascinarnos.

Molecular Biology of the Cell

En el mundo de la alimentación y la nutrición circulan muchos mitos e informaciones falsas, y es difícil orientarse en ese maremágnum informativo.Que no sepamos filtrar esa información afecta no solamente a nuestros habitos de compra sino tambien a nuestra salud. Los mitos nacen y mueren, y algunos incluso renacen al cabo de un tiempo.J. M. Mulet, uno de los cientificos de referencia en la materia, recibe en su blog centenares de preguntas al respecto, que suelen repetirse en las charlas que imparte y en los programas a los que acude para ser entrevistado.Asi que finalmente ha decidido poner freno a tanto mito y dar respuesta a los 101 mitos mas comunes y que mas dudas generan entre la gente.Este libro pretende ser una guia de consulta rapida para que, cuando te llegue la proxima cadena de internet o comentario en la cola del super, puedas saber que hay de cierto o de falso en lo malo que es determinado alimento o lo bueno que es el otro. Vamos a por ellos.

The only text to cover both thermodynamic and statistical mechanics----allowing students to fully master thermodynamics at the macroscopic level. Presents essential ideas on critical phenomena developed over the last decade in simple, qualitative terms. This new edition maintains the simple structure of the first and puts new emphasis on pedagogical considerations. Thermostatistics is incorporated into the text without eclipsing macroscopic thermodynamics, and is integrated into the conceptual framework of physical theory.

In the field of molecular evolution, inferences about past evolutionary events are made using molecular data from currently living species. With the availability of genomic data from multiple related species, molecular evolution has become one of the most active and fastest growing fields of study in genomics and bioinformatics. Most studies in molecular evolution rely heavily on statistical procedures based on stochastic process modelling and advanced computational methods including high-dimensional numerical optimization and Markov Chain Monte Carlo.This book provides an overview of the statistical theory and methods used in studies of molecular evolution. It includes an introductory section suitable for readers that are new to the field, a section discussing practical methods for data analysis, and more specialized sections discussing specific models and addressing statistical issues relating to estimation and model choice. The chapters are written by the leaders of field and they will take the reader from basic introductory material to the state-of-the-art statistical methods.This book is suitable for statisticians seeking to learn more about applications in molecular evolution and molecular evolutionary biologists with an interest in learning more about the theory behind the statistical methods applied in the field.The chapters of the book assume no advanced mathematical skills beyond basic calculus, although familiarity with basic probability theory will help the reader. Most relevant statistical concepts are introduced in the book in the context of their application in molecular evolution, and the book should be accessible for most biology graduate students with an interest in quantitative methods and theory.Rasmus Nielsen received his Ph.D. form the University of California at Berkeley in 1998 and after a postdoc at Harvard University, he assumed a faculty position in Statistical Genomics at Cornell University. He is currently an Ole Romer Fellow at the University of Copenhagen and holds a Sloan Research Fellowship. His is an associate editor of the Journal of Molecular Evolution and has published more than fifty original papers in peer-reviewed journals on the topic of this book.From the reviews: ''...Overall this is a very useful book in an area of increasing importance'' - "Journal of the Royal Statistical Society". (...)

This book presents decade-long advances in atmospheric research in the Mackenzie River Basin in northern Canada, which encompasses environments representative of most cold areas on Earth. Collaborative efforts by a team of about 100 scientists and engineers have yielded knowledge entirely transferable to other high latitude regions in America, Europe and Asia. Emphases are placed on the investigation of processes (including storm genesis, precipitation, moisture and energy fluxes and frost), and the improvement and application of a suite of models and remote sensing to enhance the assessment of climate variability and water resources. This book complements the second volume coming from the GEWEX project, dealing with the region''s hydrological processes. Together these books provide a unique synthesis of atmospheric and hydrological findings and an integrative approach across disciplines in addressing major research issues of cold regions.

In this updated and fully revised second edition, the authors provide the newcomer and the experienced practitioner with a balanced and comprehensive insight into all important methods and aspects of Differential Scanning Calorimetry (DSC), including a sound presentation of the theoretical basis of DSC thermal analysis and temperature-modulated DSC (TMDCS). Emphasis is placed on modern evaluation techniques, instrumentation, the underlying measurement principles, metrologically correct calibrations, factors influencing the measurement process, and on the exact interpretation of the results. The information enables the research scientist, the analyst and experienced laboratory staff to choose the most suitable equipment, to apply DSC methods successfully, to interpret the measurement curve, and thus to measure key properties precisely. In addition, the new edition includes improved instrumental techniques such as Tzerotm and StepScantm, new evaluation techniques, more applications, and the latest references.

El premio Nobel de Medicina François Jacob dijo que este libro «analiza minuciosamente el papel de la ideología en las ciencias». En efecto, en él se encuentran la crítica más demoledora que se haya