Ebooks de ciencias, página 25 de 705

Transferência de massa: equações de transporte e operações unitárias é um livro necessário, cujo epicentro é a vida, percebida pela própria existência, sua essência, sobrevivência, consciência e resi

Este libro es una versión remozada, y actualizada, de una obra que, con el título El decrecimiento explicado con sencillez, ha disfrutado de seis ediciones. En sus páginas se recuerda que los límites medioambientales y de recursos del planeta invitan a concluir que, ante un colapso general que se antoja cada vez mas probable, en el Norte rico tenemos la obligacion de reducir con urgencia los niveles de produccion y de consumo. Desde la perspectiva del decrecimiento, que reclama salir del capitalismo, de la explotacion y de la desigualdad que este impone, tenemos que asumir, con todo, varias tareas adicionales: recuperar la vida social que hemos ido perdiendo, desarrollar formas de ocio creativo, repartir los trabajos, reducir el tamaño de muchas de las infraestructuras que hoy empleamos, restaurar el vigor de la vida local y, en fin, apostar por la sobriedad y la sencillez voluntarias. ¿Que es el decrecimiento? ofrece una introduccion breve y comprensible a la perspectiva del decrecimiento.Carlos Taibo ha sido durante treinta años profesor de Ciencia Politica en la Universidad Autonoma de Madrid. Entre sus obras sobre decrecimiento y materias afines se cuentan En defensa del decrecimiento, Colapso. Capitalismo terminal, transicion ecosocial, ecofascismo, Ante el colapso y Decrecimiento: una propuesta razonada.

Los intervalos de confianza para un parámetro poblacional son ampliamente revisados en la teoría estadística. En particular, los extremos del intervalo de confianza para la media de la distribución normal, estan en funcion de la varianza poblacional; sin embargo, en la mayoria de los casos de interes se desconoce este valor lo que imposibilita usar la formula con la distribucion normal. La alternativa natural es usar el estimador de la varianza, usando entonces la formula con la distribucion t de Student, teniendo un intervalo de confianza teoricamente exacto.Cuando la distribucion de probabilidad no es la normal, entonces para una muestra "suficientemente grande" el teorema central del limite, respalda la utilizacion de la misma formula usada para la normal, pero al aplicarla se usa el estimador de la varianza. Asi en los hechos al construir el intervalo de confianza, en estos casos, se tienen dos aproximaciones, una que es la aproximacion normal por el teorema central del limite y otra por el uso del estimador de la varianza en lugar de usar la varianza real.En este libro, en el capitulo tres, se presenta la construccion de los intervalos de confianza para la media de cuatro distribuciones no normales, la binomial, la Poisson, La uniforme continua y la exponencial, basandonos en el teorema central del limite; pero a diferencia de los intervalos usuales, se usa la varianza real, que es desconocida pero que depende del mismo parametro que la media y es calculable.

La autora de Una trenza de hierba sagrada, Robin Wall Kimmerer, recolecta bayas junto a los pájaros, reflexiona sobre la ética de la reciprocidad que subyace en la economía del regalo. ¿Cómo podemos aprender de la sabiduria indigena y del mundo vegetal para reimaginar lo que mas valoramos?Nuestra economia se basa en la escasez, la competencia y el acaparamiento de recursos, y hemos entregado nuestros valores a un sistema que daña de forma activa lo que amamos. En cambio, el guillomo distribuye su riqueza su abundancia de bayas dulces y jugosas para satisfacer las necesidades de su comunidad natural. Y esta distribucion asegura su propia supervivencia.

Com uma narrativa ilustrada magnífica, o astrofísico mais célebre do mundo, Neil deGrasse Tyson, se junta a Lindsey Nyx Walker em Ao infinito e além para explicar o universo inteiro, do sistema solar aos confins do espaço, com autoridade e humor. Neste livro cativante, o renomado astrofisico e autor best-seller Neil deGrasse Tyson se une a produtora senior do StarTalk, Lindsey Nyx Walker, para conduzir os leitores em uma odisseia interestelar, combinando ciencia, humor e algumas cutucadas sutis em Hollywood pela forma como o espaço sideral e retratado nos filmes.A viagem começa nos arredores da Terra e avança ate exoplanetas, nebulosas e galaxias. Quanto mais longe nos aventuramos, mais instigantes as perguntas se tornam, pois e quando a teoria desafia o senso comum: Qual e a forma do universo? O que acontece quando dois buracos negros se fundem? Nasceram outros mundos a partir do Big Bang e podemos visita-los?Ao longo do livro, a ciencia abraça a cultura pop a medida que Tyson e Walker vibram com os genios dos efeitos especiais quando eles acertam e no hesitam em apontar as imprecises quando erram. Da franja de Sandra Bullock em Gravidade ao Gargantua de Interestelar, eles navegam por filmes de sucesso, separando a "ciencia" da "ficço".Para os apaixonados por ciencia e para os curiosos que se encantam com os enigmas que desafiam os astrofisicos, este livro esclarecedor e uma divertida aventura rumo aos recantos mais remotos do cosmos.

Ovinocultura: Raças, produção, manejo e desafios é um guia completo e atualizado sobre a criação de ovinos no Brasil, reunindo teoria e prática para estudantes, técnicos, criadores e entusiastas do a

Em um apelo para que a separação entre as ciências exatas e humanas não funcione como um muro entre as duas visões, impedindo que nasça uma colaboração frutífera, o livro Mentes brilhantes não pensam

Electricity and Magnetism, a volume in Elisha Grays Natures Miracles series, offers a lucid, apparatus-centered tour of charge, current, induction, and magnetic action. Interweaving historical vignettesVolta, Faradays lines of force, Maxwells field picturewith plainspoken demonstrations and crisp woodcuts, Gray moves from benchtop effects to power stations. Eschewing heavy mathematics, he shows how dynamos, transformers, telegraph circuits, and early telephones enact the same field laws, exemplifying late nineteenthcentury popular science at its best: empirical, practical, and democratically didactic. An accomplished electrical engineer and prolific inventor, Gray co-founded the firm that became Western Electric, created the harmonic telegraph and telautograph, and famously contested priority in the invention of the telephone. Trained at Oberlin and seasoned in shop and laboratory, he writes with a practitioners economy and a teachers patience, translating workshop intuitions into household-scale experiments. The books emphasis on applications and on FaradayMaxwell concepts betrays a life spent bridging patent office, factory floor, and lecture hall, and a desire to make the new electric age intelligible to non-specialists. Recommended to general readers, educators, and historians seeking a clear, context-rich primer that complements mathematical treatises and captures electrification at the moment it entered everyday life.Quickie Classics summarizes timeless works with precision, preserving the authors voice and keeping the prose clear, fast, and readabledistilled, never diluted. Enriched Edition extras: Introduction · Synopsis · Historical Context · Brief Analysis · 4 Reflection Q&As · Editorial Footnotes.

A Shepherds Life: Impressions of the South Wiltshire Downs is Hudsons deeply textured portrait of a shepherding community centered on the figure of Caleb Bawcombe, rendered through episodic scenes of work, festivity, and hardship across the seasons. Combining oral biography with natural history, Hudsons prose is limpid yet exact, attentive to chalkland light, birdsong, and the craft of dogs and men. Set on the Salisbury Plain at the edge of Edwardian change, the book extends the English pastoral from Jefferies and Hardy into an ethnography of a vanishing economy. Born on the Argentine pampas, Hudson brought to England a lifelong habit of watchful wandering and an outsiders sympathy for open country. A self-taught ornithologist and celebrated nature writer, he tramped the Wiltshire downs gathering life histories from shepherds, sedimenting memory with field observation. Alarmed by enclosure, militarization, and mechanization, he shaped these interviews into a conserving art, preserving dialect, custom, and ecological knowledge before modernization effaced them. This book rewards readers of nature writing, social historians, and ecocritical scholars alike. Read it for its patient craft and humane intelligence: a luminous record of pre-mechanized husbandry and a masterclass in listening to place as carefully as to people.Quickie Classics summarizes timeless works with precision, preserving the authors voice and keeping the prose clear, fast, and readabledistilled, never diluted. Enriched Edition extras: Introduction · Synopsis · Historical Context · Brief Analysis · 4 Reflection Q&As · Editorial Footnotes.

In Beaver World is Enos A. Millss intimate natural history of Castor canadensis, distilled from years of patient vigils beside mountain streams. Chapter by chapter he unfolds the beavers life cycle, social organization, and architectural craftdams, lodges, canalslinking each to seasonal rhythms and risk. His prose couples anecdote with measurement and plain exposition, situating the beaver as a keystone engineer whose hydrologic works expand wetlands and diversify habitat. The result is a narrative that anticipates ecosystem ecology while remaining rooted in vivid field scenes and the cadence of early twentiethcentury American nature writing. Mills, a Colorado naturalist, guide, and key advocate of Rocky Mountain National Park, wrote from a life embedded in the high country. Managing a lodge and leading expeditions, he kept notebooks on nearby colonies through droughts and wintersexperience that grounds his plea to recognize beavers as conservators of water and soil. Scholars of environmental history, field naturalists, and readers curious about nonhuman engineers will find the book instructive and restorative. It is recommended for those engaged in watershed restoration, rewilding, or climate adaptation, and for general readers seeking lucid, humane science writing with enduring practical relevance.Quickie Classics summarizes timeless works with precision, preserving the authors voice and keeping the prose clear, fast, and readabledistilled, never diluted. Enriched Edition extras: Introduction · Synopsis · Historical Context · Brief Analysis · 4 Reflection Q&As · Editorial Footnotes.

The Natural History of Selborne (1789) assembles Gilbert Whites decades of field notes into an epistolary chronicle addressed to fellow naturalists Thomas Pennant and Daines Barrington. Through lucid, quietly lyrical prose, White records the seasonal pulse of a single English parishits birds, insects, plants, soils, and weathermarrying patient empiricism with pastoral attentiveness. His long-term observations on swallow migration, the habits of earthworms, and the harvest mouse exemplify a proto-ecological method grounded in place. Situated within Enlightenment natural history, the book helped pivot the discipline toward attentive, longitudinal, local study. A country clergyman educated at Oxford, White spent most of his life in Selborne, Hampshire, ministering to his parish while tending gardens and keeping meticulous journals. His correspondence with leading savants, daily walks and weather logs, and deep familiarity with the Hanger and Common fostered a modest, exact observer whose theology of creation harmonized with Enlightenment curiosity. Readers of natural history, Romantic literature, and environmental studies will find this classic both foundational and unexpectedly contemporary: a masterclass in noticing. For anyone seeking rigorous, humane observation and the pleasures of place-based inquiry, Selborne remains an indispensable companion in an age of ecological uncertainty.Quickie Classics summarizes timeless works with precision, preserving the authors voice and keeping the prose clear, fast, and readabledistilled, never diluted. Enriched Edition extras: Introduction · Synopsis · Historical Context · Author Biography · Brief Analysis · 4 Reflection Q&As · Editorial Footnotes.

Submerged Forests distills coastal observation into a rigorous synthesis, tracing drowned tree stumps and peat beds that fringe Britains shores. From case studies of rooted stumps in situ within peat and estuarine silts, Reid reconstructs post-glacial shoreline migration and sea-level change, using stratigraphic sections, plant macrofossils, and occasional artefacts to date phases from late Pleistocene to early Holocene. Written in measured, lucid field prose, it situates coastal peats within debates on eustasy, isostasy, and marine erosion. Clement Reid, geologist and palaeobotanist with the Geological Survey of the United Kingdom, brought a rare synthesis of botanical acuity and coastal mapping to the subject. Collaboration with Eleanor Mary Reid on fossil seeds honed his capacity to read peat deposits as time-series. Years on the Cromer Forest-bed and receding shores supplied the empirical foundation, and his interest in Britains former land connections framed the books broader inferences. This classic rewards geologists, archaeologists, and environmental historians seeking a clear, data-rich account of Holocene shoreline change. It remains an exemplary model of how to build large narratives from humble evidence. Read it for its method: a concise, lucid lesson in making landscapes speak across deep time.Quickie Classics summarizes timeless works with precision, preserving the authors voice and keeping the prose clear, fast, and readabledistilled, never diluted. Enriched Edition extras: Introduction · Synopsis · Historical Context · Brief Analysis · 4 Reflection Q&As · Editorial Footnotes.

THE LAST OF THE PLAINSMEN recounts Zane Greys expedition with the game warden "Buffalo" Jones across the ArizonaUtah plateau, from the Kaibab forests to the North Rim of the Grand Canyon. A hybrid of travelogue, natural history, and adventure reportage, it tracks cougar hunts, rare bison, desert storms, and settlements at the edge of empire. Greys vivid, sometimes purple prose is balanced by field observation, placing the book at the hinge between dimenovel romance, documentary realism, and ProgressiveEra conservation. Grey, an Ohioborn dentist turned novelist and ardent outdoorsman, pursued authenticity through direct experience. Traveling with C. J. "Buffalo" Jones gave him access to techniques of roping predators alive and to Rooseveltera ideas about preservation. The journey furnished notebooks and scenes later refined in Riders of the Purple Sage. Readers of Western history, environmental studies, and narrative nonfiction will find this an invaluable, if morally conflicted, document. Approach its portrayals of wildlife and Indigenous peoples critically, yet savor its canyon vistas and kinetic chases. As frontier elegy and genre seedbed, THE LAST OF THE PLAINSMEN remains bracing and essential.Quickie Classics summarizes timeless works with precision, preserving the authors voice and keeping the prose clear, fast, and readabledistilled, never diluted. Enriched Edition extras: Introduction · Synopsis · Historical Context · Brief Analysis · 4 Reflection Q&As · Editorial Footnotes.

Micrographia (1665) opens a vast new world by recording, in crystalline prose and sumptuous copperplates, the textures and structures of minute bodiesflea and louse, bee-sting and feather, mold, needle point, and the honeycombed cork in which Hooke first named the cells. Organized as a sequence of observations with reflective Inquiries, the book marries measurement with speculation, and sets the Baconian ideal of experiment within the visual rhetoric of the Scientific Revolution. Its dramatic fold-out plates and patient, calibrated descriptions forged a language and iconography for early microscopy. Robert Hooke, polymath Curator of Experiments to the nascent Royal Society and longtime collaborator of Robert Boyle, brought to this work a craftsmans intimacy with instruments and a philosophers appetite for causes. His refinements in lenses and illumination, his habit of daily experiments, and his duty to stage public demonstrations all fed the project; so too did his draughtsmans hand, which translated observation into authoritative image and argument. Readers of science, art, and intellectual history will find Micrographia indispensable: a foundational statement of modern empiricism and a gallery of the unseen. Approach it to witness method at work, to savor disciplined wonder, and to grasp how tools and images re-make knowledge.Quickie Classics summarizes timeless works with precision, preserving the authors voice and keeping the prose clear, fast, and readabledistilled, never diluted. Enriched Edition extras: Introduction · Synopsis · Historical Context · Author Biography · Brief Analysis · 4 Reflection Q&As · Editorial Footnotes.

Zetetic Astronomy: Earth Not a Globe! assembles experiments, anecdotes, and vignettes to argue that Earths surface is planar, circled by an Antarctic ice barrier, and roofed by a nearby, circling sun and moon. Written in forthright Victorian prose, the treatise privileges everyday sight over mathematical abstraction, invoking canals, horizons, and perspective to counter Newtonian cosmology. Interleaving diagrams with courtroom-like cross-examinations of navigators and astronomers, it positions its zetetic method - inquiry before hypothesis - within the bustling culture of nineteenth-century popular science and public lecturing. Parallax was the pen name of Samuel Birley Rowbotham, an itinerant English lecturer and autodidact whose observations along the Bedford Level fens convinced him that orthodox astronomy misstated observable reality. Moving among working-class debating societies and dissenting circles, he cultivated suspicion of elite expertise and a zeal for repeatable demonstrations, which shaped both his teaching and this defiantly empirical book. Recommended to readers of the history and sociology of science, this volume is a primary source in the rhetoric of counter-science. Read it alongside contemporary astronomical manuals: its provocations illuminate how authority, evidence, and spectacle intertwined in the Victorian marketplace of ideas, and still animate public reasoning today.Quickie Classics summarizes timeless works with precision, preserving the authors voice and keeping the prose clear, fast, and readabledistilled, never diluted. Enriched Edition extras: Introduction · Synopsis · Historical Context · Brief Analysis · 4 Reflection Q&As · Editorial Footnotes.

In The Mountains of California, John Muir fuses lyrical reverie with scrupulous natural history to chart the Sierra Nevadas glaciers, forests, cascades, and high meadows. In late nineteenthcentury American nature writings Emersonian current, he advances a glacial account of Yosemite while recording flora, fauna, weather, and rock with exacting taxonomy. The original illustrations extend his itineraries and anchor the books vivid, field-born essays. MuirScottish-born immigrant, itinerant inventor, and later Sierra Club cofounderdrew these chapters from seasons of herding, botanizing, and snow-camping in the high country between 1869 and the early 1870s; the book appeared in 1894. An eye injury, a thousand-mile walk, and settlement in California refined his vocation for attentive wandering. Journals, lectures, and geological debate converge here, shaping a conservation ethic grounded in minute empirical seeing. This edition rewards readers of environmental history, geology, and American letters as well as hikers seeking a field companion. It offers a lucid synthesis of science and rapture, and, with its period plates, a portal into the formative imagination behind Americas national parks.Quickie Classics summarizes timeless works with precision, preserving the authors voice and keeping the prose clear, fast, and readabledistilled, never diluted. Enriched Edition extras: Introduction · Synopsis · Historical Context · Author Biography · Brief Analysis · 4 Reflection Q&As · Editorial Footnotes.

First published in 1876, this two-volume treatise codifies the worlds fauna into six zoogeographic realms: Palearctic, Nearctic, Neotropical, Ethiopian, Oriental, and Australasian, and explains their boundaries through geology, climate, and barriers to dispersal. Wallace integrates exhaustive catalogues with interpretive chapters, using maps, synoptic tables, and bathymetric clues such as shallow seas to infer past connections. Extending P. L. Sclaters avian scheme to vertebrates, his methodical prose offers a Darwinian, historical account that makes biogeography a synthetic science. Wallaces argument grows from lived experience. Years in the Amazon and the Malay Archipelago, where he traced the Wallace Line between Bali and Lombok, gave him intimate knowledge of island faunas, endemism, and migration barriers. As co-formulator of natural selection and an indefatigable collector for museums, he turned field notes, specimen lists, and correspondence with Darwin, Huxley, and Sclater into a principled framework for why species occur where they do. Scholars of evolution, macroecology, and the history of science will find this foundational synthesis indispensable; conservationists and systematists will value its durable logic and global scope. Read it for empirical rigor and conceptual clarity: a master class in converting natural history into theory, and in learning to read the map of life.Quickie Classics summarizes timeless works with precision, preserving the authors voice and keeping the prose clear, fast, and readabledistilled, never diluted. Enriched Edition extras: Introduction · Synopsis · Historical Context · Author Biography · Brief Analysis · 4 Reflection Q&As · Editorial Footnotes.

Desde que, transportada por el tornado de la inter-, multi- y transdisciplinariedad, la psicología política del desarrollo aterrizó en el quizás-no-tan maravilloso País de Oz, los cuentos de hadas ya no son lo que eran. O si lo son, al menos en teoria, porque la ciencia, sobre este y varios temas mas, tiene una que otra cosa que añadir en estas paginas.A diferencia de las gafas verdes del Mago, las que aqui nos prestan investigaciones, evidencias y descubrimientos variopintos nos ofrecen nuevas formas de entender la literatura y otras artes, la naturaleza humana y no humana, la sociedad y la cultura. Asi, podemos experimentar la lectura o relectura de novelas con corazon en la compañia de los cardiologos y apreciar las tormentosas tribulaciones del biblico rey Nabucodonosor desde la perspectiva de un neurologo. Podemos comprender que miedos disfrazan las imaginarias evocaciones de infancias nada angelicales y las igualmente irreales invocaciones al demonio en nuestro siglo. Y tal vez nos sea util (re)pensar en el bullying, la amistad, el turismo, la muerte y hasta nuestro (dis)gusto por el chile tomando en cuenta que habria pensado Darwin de todo esto.Bienvenidas sean todas las personas para quienes un "me parece que ya no estamos en Kansas" no es mas que una invitacion a aventurarse con gozo, y a explorar libremente, territorios que no distinguen entre hiperbolas e hiperboles, cuando de lo que se trata con todo de lo que aqui se trata es de hablar sobre ciencia, en teoria.

On the Origin of Species is one of the most influential scientific books ever written. In this groundbreaking work, Charles Darwin presents the theory of evolution by natural selection, reshaping biology and humanitys understanding of life on Earth. The 6th edition reflects Darwins refined arguments and responses to critics. Clear, methodical, and revolutionary, this book remains essential reading for students of science, philosophy, and intellectual history.

Acompanhe a trajetória de Mik, um jovem cheio de sonhos e talento para o rap, enquanto ele e seus amigos enfrentam os desafios da vida nas ruas da cidade. Entre gravações, batalhas de rima, pequenos