Libros de ciencias, página 52 de 1679

En un momento en el que la llamada clase política parece haber alcanzado su máximo desprestigio, este libro pretende mostrar a los ciudadanos cómo es posible tomar decisiones políticas óptimas en los temas realmente importantes (salud, educacion, economia, defensa, medioambiente, cultura) con ayuda de las herramientas matematicas favoritas de cuatro veteranos exministros matematicos. Tambien pretende ayudarles a desenmascarar las mentiras estadisticas y los señuelos electorales difundidos en las redes sociales, que tratan de desviar sus votos hacia opciones politicas contrarias a sus verdaderos intereses. ?No todo en politica puede justificarse o relacionarse con las matematicas, pero la politica no debe hacerse en contradiccion con las verdades matematicas. Para mi, este es un mensaje central de esta publicacion?. Johanna Wanka, catedratica de Matematica Aplicada en la Universidad de Ciencias Aplicadas de Merseburg y exministra de Educacion e Investigacion de Alemania (2013-2018). ?Los autores de este libro han hecho un trabajo increible al desenterrar areas del razonamiento matematico que impregnan la vida social y politica. Al leer este libro, todos enriqueceremos nuestra vision del valor de las matematicas para la sociedad?. Nuno Crato, catedratico de Matematica Aplicada en la Universidad de Lisboa y exministro de Educacion y Ciencia de Portugal (2011-2015).

Modern information technology permeates and transforms our world far more intensely than most of us realize It highlights major development lines and explains concepts such as artificial intelligenc

How the path from climate change to a habitable future winds through the world s forests In recent years planting a tree has become a catchall to represent doing something good for the planet Many companies commit to planting a tree with every purchase But who plants those trees and where Will they flourish and offer the benefits that people expect Can all the individual efforts around the world help remedy the ever looming climate crisis In Treekeepers Lauren E Oakes takes us on a poetic and practical journey from the Scottish Highlands to the Panamanian jungle to meet the scientists innovators and local citizens who each offer part of the answer Their work isn t just about planting lots of trees but also about understanding what it takes to grow or regrow a forest and to protect what remains Throughout Oakes shows the complex roles of forests in the fight against climate change and of the people who are giving trees a chance with hope for our mutual survival Timely meticulously reported and ultimately optimistic Treekeepers teaches us how to live with a sense of urgency in our warming world to find beauty in the present for ourselves and our children and to take action big or small

From ancient acorns to future forests the story of how oaks evolved and the many ways they shape our world An oak begins its life with the precarious journey of a pollen grain then an acorn then a seedling A mature tree may shed millions of acorns but only a handful will grow One oak may then live 100 years 250 years or even 13 000 years But the long life of an individual is only a part of these trees story With naturalist and leading researcher Andrew L Hipp as our guide Oak Origins takes us through a sweeping evolutionary history stretching back to a population of trees that lived more than 50 million years ago We travel to the ancient tropical Earth to see the ancestors of the oaks evolving side by side with the dinosaurs We journey from the oaks childhood in the once warm forests of the Arctic to the montane cloud forests of Mexico and the broad leaved evergreen forests of Southeast Asia We dive into current research on oak genomes to see how scientists study genes movement between species and how oaks evolve over generations spanning tens of millions of years Finally we learn how oak evolutionary history shapes the forests we know today and how it may even shape the forests of the future Oaks are familiar to almost everyone and beloved Th

Historia del vacío lleva al lector en un viaje fascinante a lo largo de los siglos para mostrarle el desarrollo de la ciencia y la tecnología del vacío. Este recorrido comienza en la más remota Antiguedad, nos conduce a las efervescentes polemicas entre los partidarios y detractores de la existencia de vacio ?vacuistas y plenistas?, pasando por la incesante innovacion en el diseño de bombas para conseguir presiones de gases cada vez mas bajas, y nos trae hasta la actualidad, en que el vacio se ha consolidado como una tecnologia facilitadora. La ciencia y tecnologia del vacio contribuyen al paradigma tecnologico que sustenta el mundo tal como lo entendemos hoy, y que abarca areas que tan directamente nos atañen como la microelectronica y la computacion y sus aplicaciones en la medicina o la biotecnologia. Desde una vision no solo cientifica, sino tambien humanistica, esta historia se relata a traves de una serie de estampas que narran la peripecia personal y cientifica de los filosofos, cientificos e inventores que de un modo u otro se han ocupado del vacio. Contada, ademas, por uno de sus protagonistas, Jose Luis de Segovia, que lo fue ?y muy destacado desde la decada de los años cincuenta? en los albores de esta disciplina en España. Historia del vacio es un libro original, ameno, inspirador, de vocacion dialectica, y el primero escrito en español sobre este tema, que pretende ser provechoso tanto para el especialista como para el estudiante, el historiador de ciencia y tecnologia o cualquier lector culto interesado en la materia.

This book analyzes landfill sites in New York City Greater Toronto and Tel Aviv emphasizing the global scale of issues concerning waste disposal and park redevelopments For scholars researchers and academics studying waste studies the environment cities and sustainable development as well as for policymakers and eco artists

A fully revised and updated edition of the bestselling photographic guide Hoverflies of Britain and Ireland is a beautifully illustrated photographic field guide to this increasingly popular group of insects focusing on the species that can be most readily identified It is the perfect companion for wildlife enthusiasts professional ecologists and anyone with an interest in this fascinating group of insects and is designed to appeal to beginners and experts alike This updated third edition covers 13 additional species and offers a host of improvements to aid reliable identification Accessible authoritative and easy to use this book features an essential guide to hoverfly tribes and presents hundreds of remarkable photographs of hoverflies in their various life stages including images of at least one representative from each of the British and Irish genera The species included are mainly those that can be identified by eye or using a magnifying glass Individual species accounts highlight key identification features provide information on behaviour and habitat requirements status population trend and flight period and include an up to date distribution map covering Britain and Ireland Sections on hoverfly biology where and when to find hoverflies legisla

"La trayectoria y obra de Ramón de la Sagra (1798-1871) condensan una vida dedicada al estudio de la historia natural, la geografía, la cartografía y la política. Enviado por el gobierno español a Cuba en 1822 para dirigir la catedra de Historia Natural, tambien ejercio como director del Jardin Botanico de La Habana. Dedico parte de sus esfuerzos a promocionar la enseñanza agricola y hacer del jardin un lugar de ensayo y experimentacion. Su obra magna fue Historia fisica, politica y natural de la isla de Cuba.Coleccion Naturalistas del Mundo Hispanico"

PARA EMPEZAR, ¿QUÉ ES UN HALCÓN? CÓMO SON LOS HALCONES DE ELEONORA. COMER Y NO SER COMIDO: UN IMPERATIVO CATEGÓRICO. LAS RUTINAS DIARIAS Y ANUALES. LA MIGRACIÓN DE LAS AVES Y LA DE LOS HALCONES. ¿CUÁNTOS SON? ¿DONDE ESTAN? ANTEPASADOS Y EVOLUCION, ADAPTAR

Lo que más ignoramos es a menudo lo que tenemos al lado. Este libro nos invita a mirar a nuestro alrededor con ojos de naturalista, a comprender el valor de la naturaleza no solo por su fauna y flora o sus paisajes, sino por lo que puede enseñarnos sobre nosotros mismos y nuestro lugar en el mundo. Combinando prosa literaria, divulgacion cientifica rigurosa y reflexion personal, estas historias naturales nos llevan de lo pequeño a lo inmenso y de lo normal a lo extraordinario. Acompañemos al autor en sus escenarios castellano-manchegos para descubrir lo valiosa que puede llegar a ser nuestra naturaleza mas cercana. Esta coleccion recorre escritos originales e ineditos de no ficcion que se adentran e inspiran en la Naturaleza, con la coartada del punto de inicio o el hilo de Ariadna de un paseo. Apostamos por impulsar la creacion literaria original, descubrir en otras voces ?veteranas y nuevas? el eco de nuestros anhelos, pulsar inquietudes, crear y apoyar vocaciones; entendiendo la labor editorial como creatividad en ebullicion generadora de arte y cultura, que se arriesga y crea. Lejos, a años luz, del camino facil de limitarse a importar y enlatar para la venta clones foraneos ya editados y publicados, donde la creatividad la pusieron otros, reducido el bello oficio a mera cadena de montaje y produccion industrial. Nuestra vocacion es crear; afrontamos el riesgo y nos encomendamos a ti tan solo, lectora, lector. INDICE1. Una cascada2. El puente de los martines3. El vado4. Una laguna salada5. El engaño 6. La niebla helada7. Las bellotas8. Hojas de encina9. El mundo de una agalla 10. Plantas carnivoras11. Los trilobites

Grassland Degradation Restoration and Sustainable Management of Global Alpine Area involves the stripping and regeneration of the grassland s mattic epipedon The stripping of the mattic epipedon is a unique phenomenon on the global alpine area which has left many unanswered questions Is stripping degradation an inherent inevitable feature of the alpine grassland ecosystem Is it an avoidable occurrence Why is ecological restoration of stripped degraded grassland extremely difficult Does restoration rely on reconstructing the grassland s mattic epipedon Or can it be done in another way How can sustainable ecological restoration be achieved Frontline researchers in global alpine area have used observational evidence from field studies to respond to these questions and to present a comprehensive picture of the problems and drivers of grassland degradation The climate environment interaction mechanism of grassland degradation is revealed by the holistic approach in this book Ecological restoration is discussed through social and economic participation and past and present restoration actions are analyzed from the perspective of traditional culture and ecological ethics The future sustainable management of grassland under climate change and social and econom

Powerfuels are the subject of intense and often contentious current discussions within industry research politics as well as the overall society These discussions primarily revolve around the practical and technical feasibility of power to X processes and applications their economic viability the respective environmental benefits the contribution to climate protection as well as the social acceptability Thus the primary aim of this book is to provide a comprehensive overview of various aspects diverse considerations and different perspectives regarding the future role and utilization of power to X pathways on a global scale This encompasses the challenge of sourcing necessary educts feedstock options their conversion into different products and product groups exploring the possibilities of using these electricity based fuels hydrocarbons in various markets and establishing suitable framework conditions for viable and sustainable markets in the years to come These objectives are achieved through a collection of papers contributed by experts actively engaged in various fields related to power to X

Friedrich Wöhler, tot i que es va doctorar en medicina l’any 1823 a la Universitat de Heidelberg, va ser un químic vocacional. La seva formació com a químic va culminar amb l’estada de dos anys a Est

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

A superb account of the ecology and behaviour of two declining bird species whose lives are intimately shaped by their woodland habitats Rob Fuller There can surely be nobody else as richly qualified as Richard Broughton to write this definitive work on the natural history of these two fascinating species Prof Ben Sheldon The Marsh Tit and the Willow Tit are two small birds of woodlands and forests extending from Great Britain to Japan They are resourceful resilient vocal and bold Both species are an important part of our natural heritage and are sentinels of our wooded ecosystems sensitive to habitat changes that send their populations into decline and signalling problems in these precious habitats In this first monograph for either species Richard Broughton reveals the intricacies of the remarkable lives of these birds bringing together decades of personal study and a detailed review of the wider research from Europe and Asia We learn about each species taxonomy communication food and foraging patterns habitats social organisation breeding behaviour and dispersal as well as exploring the challenges they face and their future prospects With more than 150 illustrations including unique maps charts and colour photographs The Marsh Tit and Th

A bold defense of the internet arguing attempts to fix and regulate it are often misguided essential reading for anyone who cares about the future of the internet Taylor Lorenz author of Extremely Online The internet stands accused of dividing us spying on us making us stupid and addicting our children In response the press and panicked politicians seek greater regulation and control which could ruin the web before we are finished building it Jeff Jarvis is convinced we can have a saner conversation about the internet Examining the web s past present and future he shows that many of the problems the media lays at the internet s door are the result of our own failings The internet did not make us hate we brought our bias bigotry and prejudice with us online That s why even well intentioned regulation will fail to fix hate speech and misinformation and may instead imperil the freedom of speech the internet affords to all Once we understand the internet for what it is a human network we can reclaim it from the nerds pundits and pols who are in charge now and turn our attention where it belongs to fostering community conversation and creativity online The Web We Weave offers an antidote to today s pessimism about the internet outlining a bol

A posthumous work from the beloved conservationist and naturalist Gerald Durrell to celebrate the centenary of his birth with a new foreword by HRH Princess Anne Gerald Durrell was magic SIR DAVID ATTENBOROUGH A wise genial and world encompassing book SUNDAY TIMES Fills important gaps in the biographical narrative Truly there is magic here GUARDIAN Myself and Other Animals is a new book mosaicked from unpublished autobiographies uncollected pieces and previously published extracts from Durrell s work and archives The result is an extraordinary journey through Durrell s life in his own words edited and introduced by his widow Lee Durrell Drawing on a memoir that Durrell started writing before he became too ill to continue it and an unfinished book from a trip to Australia in 1969 to the Great Barrier Reef Northern Territory and Queensland here is the unvarnished story of Durrell s life from touching family tributes to golden bats and pink pigeons Moving from India to England and then to the always sun lit Corfu told with dry wit and insight into our fellow animals here is the vivid finale of one of Britain s most beloved conservationists and prose stylists Funny and readable and hugely charming i One of the finest and most lyrical nature

A leading astronomer and gifted teacher takes readers on a wondrous tour perfect for anyone who enjoyed Astrophysics for People in a Hurry Publishers Weekly of how science confronts the big questions about the origins destiny and fundamental nature of our universe Humans have learned a lot about the world around us and the universe beyond We have made powerful insights and created profound theories about the universe and everything in it Surely the ultimate theory must be waiting just beyond our current knowledge Well maybe In Into the Unknown astrophysicist Kelsey Johnson takes us to the edge of scientific understanding about the universe What caused the Big Bang What happens inside black holes Are there other dimensions She doesn t just celebrate what we know but rather what we don t and asks what it means if we never find that knowledge Exploring the convergence of science philosophy and theology Johnson argues we must reckon with possibilities including those that may be beyond human comprehension The very places where we run smack into total ignorance are the places where the most important questions about the philosophy of knowledge the nature of our cosmos and even the existence of God await As accessible as it is profound Into the Unk

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