Libros de ciencias, página 677 de 2695

Which nations have launched which animals into space?Which countries have no sea views? Where were our planet's now-extinct species last sighted?Who is behind the great avocado boom? Where can you hug the world's oldest trees?With infographic maps covering the entire globe, Wild Maps will delight cartography fans and nature lovers, as well as anyone with an interest in all that is fascinating and awe-inspiring on Planet Earth (and beyond). Beautifully designed and illustrated, Wild Maps is an eye-opening celebration of our world, and the plants and animals with whom we share it.

What links conscious experience of pain, joy, color, and smell to bioelectrical activity in the brain? How can anything physical give rise to nonphysical, subjective, conscious states? Christof Koch has devoted much of his career to bridging the seemingly unbridgeable gap between the physics of the brain and phenomenal experience. This engaging book--part scientific overview, part memoir, part futurist speculation--describes Koch''s search for an empirical explanation for consciousness. Koch recounts not only the birth of the modern science of consciousness but also the subterranean motivation for his quest--his instinctual (if "romantic") belief that life is meaningful. Koch describes his own groundbreaking work with Francis Crick in the 1990s and 2000s and the gradual emergence of consciousness (once considered a "fringy" subject) as a legitimate topic for scientific investigation. Present at this paradigm shift were Koch and a handful of colleagues, including Ned Block, David Chalmers, Stanislas Dehaene, Giulio Tononi, Wolf Singer, and others. Aiding and abetting it were new techniques to listen in on the activity of individual nerve cells, clinical studies, and brain-imaging technologies that allowed safe and noninvasive study of the human brain in action. Koch gives us stories from the front lines of modern research into the neurobiology of consciousness as well as his own reflections on a variety of topics, including the distinction between attention and awareness, the unconscious, how neurons respond to Homer Simpson, the physics and biology of free will, dogs, Der Ring des Nibelungen, sentient machines, the loss of his belief in a personal God, and sadness. All of them are signposts in the pursuit of his life''s work--to uncover the roots of consciousness.

Drawing on startling new evidence from the mapping of the genome, an explosive new account of the genetic basis of race and its role in the human storyFewer ideas have been more toxic or harmful than the idea of the biological reality of race, and with it the idea that humans of different races are biologically different from one another. For this understandable reason, the idea has been banished from polite academic conversation. Arguing that race is more than just a social construct can get a scholar run out of town, or at least off campus, on a rail. Human evolution, the consensus view insists, ended in prehistory.Inconveniently, as Nicholas Wade argues in A Troublesome Inheritance, the consensus view cannot be right. And in fact, we know that populations have changed in the past few thousand yearsto be lactose tolerant, for example, and to survive at high altitudes. Race is not a bright-line distinction; by definition it means that the more human populations are kept apart, the more they evolve their own distinct traits under the selective pressure known as Darwinian evolution. For many thousands of years, most human populations stayed where they were and grew distinct, not just in outward appearance but in deeper senses as well.

En los dos tomos que tratan la materia correspondiente al primer curso de Cálculo Infinitesimal de las distintas carreras universitarias y escuelas de ingeniería, los autores se proponen, como objetivo basico, exponer los temas con claridad suficiente para que el alumno, aun sin apenas ayuda del profesor, pueda seguir el estudio de la asignatura de forma progresiva.Este objetivo lo consiguen conjugando la parte teorica con una serie de ejemplos y una seccion de ejercicios y problemas resueltos en cada capitulo, que en el conjunto de este tomo suponen mas de 270, con lo cual se consolidan los conocimientos adquiridos en cada tema y se logra una deseada soltura en el manejo de las distintas situaciones que se pueden presentar.

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Eagerly awaited, must-read new science book from the UK's bestselling non-fiction writer. Bryson is the prize-winning author of A Short History of Nearly Everything and The Road to Little Dribbling.In the bestselling, prize-winning A Short History of Nearly Everything Bill Bryson achieved the seemingly impossible by making the science of our world both understandable and entertaining to millions of people around the globe.Now he turns his attention inwards to explore the human body, how it functions and its remarkable ability to heal itself. Full of extraordinary facts and astonishing stories The Body: A Guide for Occupants is a brilliant, often very funny attempt to understand the miracle of our physical and neurological make up.A wonderful successor to A Short History of Nearly Everything, this book will have you marvelling at the form you occupy, and celebrating the genius of your existence, time and time again.

A bestselling guide since it was first published, Britains Birds has quickly established itself as the go-to photographic identification guide to the birds of Great Britain and Ireland the most comprehensive, up-to-date, practical and user-friendly book of its kind. Acclaimed by birdwatchers of all kinds, from the beginner to the most experienced, the guide has now been thoroughly revised and updated to make it even better than before. Combining the finest of identification guide content and presentation, this eagerly awaited second edition preserves the best of the first edition while covering twelve newly recorded species and offering a host of improvements that make identification easier.- Provides comprehensive coverage of all the birds ever recorded in Britain and Ireland- Describes and illustrates all plumages likely to be encountered- Features more than 3,200 stunning photographs carefully selected to show the birds as you really see them- Outlines simple steps to help you identify any bird you see- Presents simple and accurate comparisons of similar and difficult speciesNew features include:- Coverage of 12 new species recorded since the first edition plus revisions to reflect the latest taxonomy- Coverage of all subspecies- Improved identification aids, including more than 400 new photos, enhanced photo annotations and many redesigned plates- Fully revised species accounts, including the latest information on identification features, status, numbers, geographical range and date ranges for all plumages that may be seen during only part of the year

En este libro se introducen los conceptos básicos de la Probabilidad y la Estadística que corresponden con los de una asignatura introductoria a estas disciplinas en cualquier titulación superior cientifico-tecnica. Ademas de util para estudiantes de estas titulaciones, pretende serlo para cualquiera que desee introducirse en estos temas de manera sencilla. Se tratan las nociones basicas de probabilidad, probabilidad condicionada y variables aleatorias, acompañadas de ejemplos y aplicaciones para ilustrar su aplicabilidad en diferentes ambitos. Tambien los intervalos de confianza y los tests de hipotesis clasicos, asi como el test de la X2 de Pearson, los test de normalidad y el test Q de Dixon. Ademas, el Analisis de la Varianza y el Diseño de Experimentos, y la Regresion Lineal Simple, dos de las herramientas estadisticas mas utiles. En el ultimo tema se hace un breve repaso al Control de Calidad estadistico, y el primero es una introduccion a la asignatura a traves del tratamiento de los errores de medicion. Al Final de algunos temas hay cuadros-resumen y en otros aparecen intercalados en el texto. En todos hay una propuesta de ejercicios cuya realizacion ayudarla a una mejor comprension de la materia y a la consecucion de las destrezas y competencias deseadas.

Guía Del Perro David Taylor Manual práctico para el cuidado del perro con instrucciones y consejos prácticos sobre el cuidado, alimentación y nutrición, adiestramiento, alojamiento, embarazo y cría. Tambien se ocupa de temas como el tratamiento de las enfermedades y los primeros auxilios.

Este libro está dedicado a la prevención de riesgos laborales y ambientales en trabajos de extinción de incendios forestales desde una perspectiva interdisciplinar. Y es éste su principal mérito, pues hasta ahora aludir a los incendios forestales suponia priorizar la extincion del fuego antes que la seguridad de los combatientes y de los trabajadores de medios aereos. En esta obra se dan encuentro importantes profesionales de diferentes sectores de actividad que han encaminado sus conocimientos a los aspectos problematicos que la prevencion de riesgos laborales tiene en sus diferentes vertientes. asi encontramos juristas de diferentes especialidades (penal, contencioso-administrativa y, como no, laboral), para analizar las cuestiones que la normativa de prevencion de riesgos laborales tiene en su aplicacion a la extincion de incendios forestales y la proteccion de la salud y seguridad que en ella intervienen. a los que se unen profesionales especializados en biologia, medicina, quimica, forestales, bomberos y profesionales de otros sectores, como los pilotos de medios aereos que cumplen una importante labor de traslado de los combatientes al lugar donde se desarrolla el fuego. En el trabajo no se olvida analizar la conexion en la proteccion de riesgos laborales y de riesgos ambientales, pero dejando claro que la prioridad es la salud y seguridad de las personas que intervienen en la extincion. Asi pues esta edicion constituye un material indispensable para todos aquellos que se dedican a labores de extincion de incendios forestales, sean combatientes, medios aereos o personas responsables de la prevencion de riesgos laborales en las empresas y administraciones publicas competentes.

An inspiring and approachable tip-filled guide to changing your habits, living more sustainably, and taking action, by Greenpeace ambassador Bonnie Wright (Ginny Weasley in the Harry Potter movies)Go Gently is a practical guide for sustainability at home that offers simple, tangible steps towards reducing our environmental impact by looking at what we consume and the waste we create, as well as how to take action for environmental change. The title reflects Bonnie's belief that the best way to change our planet and ourselves is through a gentle approach, rather than a judgmental one. This is a book of do's rather than don'ts.Going through every room in her home, Bonnie helps us assess which products are sustainable, and offers alternatives for those that are not. She shares recipes to avoid food waste, homemade self-care products to avoid packaging, small space friendly gardening ideas and a template for creating your own compost system. Finally, there are exercises and meditation prompts to keep you energised, as well as tips on how to get involved in wider community activism.

El Rumor de los Planetas es una aventura para el lector. En sus páginas encontrará narraciones sobre fantásticos viajes a las lunas y anillos de los planetas gaseosos, paseos astronómicos por las bulliciosas calles de Roma y expediciones en busca de meteoritos entre las ardientes arenas del Sahara. Descubrira reflexiones sobre el futuro de la exploracion espacial, su oportunidad y su sentido; pero tambien la excitacion que supone acercare a las ciencias-frontera de la mano de sus protagonistas, heroes legendarios como Kepler y Galileo, que contribuyeron a sentar las bases sobre las que Newton describio el funcionamiento del mundo. Este libro es, en definitiva, una heterodoxa guia de viaje en el espacio y en el tiempo, con sabor romantico pero riguroso, diverso pero interrelacionado, que ofrece a los lectores-viajeros una variada perspectiva de diversos aspectos de la exploracion planetaria: de su desarrollo como rama de la ciencia, de sus resultados mas novedosos y de los conceptos basicos necesarios para la comprension del Sistema Solar.

Este libro es un manual para iniciarse en el estudio de las estrellas. Se incluyen los aspectos más importantes de la astronomía como son: la óptica instrumental, telescopía, fotografía y una guía para la observacion astronomica. Incluye una bibliografia sobre astronomia.