eBooks de Divulgación científica, página 28 de 121

La narración perfecta de una historia de miedo, ingenio, persecución, colaboración y grandes logros, por el aclamado historiador Simon Schama.«Una épica historia de pandemias e inmunidad».Jorge Benít

Bill Hansson, director del Departamento de Neuroetología Evolutiva del Instituto Max Planck de Ecología Química, nos cuenta que el sentido olfativo es en realidad un sistema de supervivencia con capacidad de traduccion quimica y de intercomunicacion (mensajes quimicos codificados). Esta traduccion quimica permite percibir cambios en el entorno, alarmas ambientales, amenazas, trazados migratorios y momentos idoneos para la reproduccion. En los humanos, por ejemplo, se ha demostrado que los bebes huelen de manera diferente como una tactica de supervivencia: debido a su olor dulzon, agradable y tranquilizador, eran encasillados por los adultos agresivos como no enemigos.Cuestion de olfato cuenta historias asombrosas del mundo de la investigacion olfativa: desde la planta del tabaco que excreta un olor a alarma, hasta mosquitos que aprecian el olor de los pies sudorosos, pasando por lirios que imitan la fragancia de estiercol de caballo o por los olores mas peculiares de las plantas de las profundidades marinas donde los pescadores de caña se orientan en la oscuridad total utilizando solo nariz. Este es un viaje apasionante por el mundo de los olores y de los olfatos animales, vegetales y humanos, pero tambien una advertencia ante las catastroficas consecuencias de la contaminacion creada por el ser humano y de como afectara al mapa oloroso del futuro.

Why study Einsteins relativity from a cultural point of viewthe theory as well as the universal consensus it receives? On the one hand, every human phenomenon can be looked at from this point of view, but here we are faced with something special: the American magazine Time, which every December dedicates a cover to the person of the year, on the latest issue in 1999 named the person of the century, and who was this person, if not Einstein? From 1919 in a sensational way, but the signs of the phenomenon began to be observed already around 1910, the author of a theory that is almost impossible to make understandable to those who are not specialists enjoys generalized consensus among specialists and a popularity by the public of the whole world which has remained unchanged until the present. No one expressed this better than Chaplin, once he was acclaimed in public in the company of Einstein: They cheer me because they all understand me, and they cheer you because no one understands you.The little-known contemporary Gehrcke, if we have the patience to follow him, could lead the way to understand something of this. Ernst Gehrcke (1878-1960) was an academic physicist, a good connoisseur of Kants philosophy, a technologist of electromagnetism, inventor of instruments for measuring interference, an editor of monumental manuals on optics and radiology, an expert in palaeontology and prehistory (some photographs available on the Internet show him intent on ordering geological samples and lithic finds), and in addition to all this he was the first to think that it was necessary to study relativity from a cultural point of view. In this book we will read his attempts in this direction, which began in 1912, when general relativity did not yet exist, but special relativity had already inflamed with enthusiasm some students and physicists of the new generation, in Germany and beyond.

Hubo un tiempo en que la curiosidad era algo condenable: a fin de cuentas, por su culpa cometió Eva ese pecado original que al parecer aún estamos pagando. Y sin embargo, no es fácil frenar la curiosidad humana. Llevados por ella, hoy nos gastamos fortunas en construir un acelerador de particulas que nos permita "ver" el instante de la creacion, o en mandar robots a planetas lejanos, y todavia hay quien le da vueltas a la idea de la piedra filosofal.Ese paso de vicio a virtud es el que recorre Philip Ball en este libro, una gran biografia coral de los quimicos, astronomos, fisicos y demas cientificos que rompieron barreras, que metieron la nariz donde nadie habia osado meterla antes y que dieron paso a la ciencia moderna. Magia, religion, literatura, viajes, comercio e imperialismo se mezclan en un relato apasionante, que invita al lector a un viaje que no olvidara nunca: el gran tour por la historia de la curiosidad.

To most minds mystery is more fascinating than science. But when science itself leads straight up to the borders of mystery and there comes to a dead stop, saying, ``At present I can no longer see my way, the force of the charm is redoubled. On the other hand, the illimitable is no less potent in mystery than the invisible, whence the dramatic effect of Keats ``stout Cortez staring at the boundless Pacific while all his men look at each other with a wild surmise, ``silent upon a peak in Darien. It is with similar feelings that the astronomer regards certain places where from the peaks of the universe his vision seems to range out into endless empty space. He sees there the shore of his little isthmus, and, beyond, unexplored immensity.

Discover the Wildest, Weirdest, and Most Wonderful Animals on Earth (and their surprising quirks)!Get ready for a mind-bending adventure through the animal kingdom packed with incredible trivia and jaw-dropping facts that will amaze the whole family.From strange species youve never heard of to the shocking secrets of the animals you thought you knew, this book is bursting with fascinating discoveries that will make you say, "Wait, what?!"Part One: Animals Youve Never Heard OfMeet natures lesser known creatures from the Great Potoo to a type of fish with human looking teeth and an amphibian that freezes solid and thaws out in the spring. These are the curious creatures you didnt even know existed, and every page reveals a completely surprising behaviour!Part Two: Familiar Faces, Unbelievable FactsThink you know pigs, dogs, and penguins? Think again! Discover the weird and wonderful habits of your favourite animals from an everyday garden insect that stretches in the morning (yes like like humans!) to a farmyard animal that plays football. Youll never look at your household pets (or your garden visitors!) the same way again.Perfect for:Curious kids (aged 8+), teens, and adults who love to learnFamilies looking for screen-free funTrivia buffs, fact fans, and anyone who enjoys saying Wow, I didnt know that!So whether youre sharing fun facts at the dinner table, keeping curious minds busy, or dazzling your friends with animal trivia, this is the ultimate fact-filled adventure.Discover the worlds wildest wonders one fascinating fact at a time!

Despite an increase in life expectancy over the past 20 years, the number of novel, multi-drug resistant microorganisms has also risen dramatically. To reduce the risk of reemerging infections, and limit the spread of multidrug resistant microorganisms, it is urgently necessary to develop safe and effective therapeutic countermeasures. New antimicrobial chemicals are mostly produced with the help of microorganisms, and the bulk of medications now on the market are of this type. The use of high therapeutic screening and recent developments in analytical instrumentation has allowed the researchers to identify novel antimicrobial compounds from bacteria, fungi, plants, mushrooms, algae, and other sources more quickly. The second volume of Frontiers in Antimicrobial Agents highlights the ongoing requirement for researching and creating novel antimicrobial medications. Current Trends in the Identification and Development of Antimicrobial Agents aims to bring together the expertise of notable academics to examine all facets of antimicrobial research while keeping recent advancements in perspective. Antibiotic discovery, sources of novel antimicrobial chemicals, developing and reemerging microbial infections, various elements of drug resistance, and the need for antimicrobial medications in the future are all covered in this book. It is a timely reference for anyone involved in the discovery and development of new drugs, including microbiologists, biotechnologists, pharmacologists, doctors, and researchers.

Advances in biomedical research have had a profound effect on human health outcomes over the last century. Biophysical, biochemical and cellular techniques are now the backbone of modern biomedical research. Understanding these laboratory techniques is a prerequisite for investigating the processes responsible for human diseases and discovering new treatment methods. Cutting Edge Techniques in Biophysics, Biochemistry and Cell Biology: From Principle to Applications Provides information about basic and advanced analytical techniques applied in specific areas of life science and biomedical research. Key Features: - Book chapters present a broad overview of sophisticated analytical techniques used in biophysics, biochemistry and cell biology. - Techniques covered include in vitro cell culture techniques, flow cytometry, real time PCR, X-ray crystallography, RNA sequencing - Information about industrial and biomedical applications of techniques, (drug screening, disease models, functional assays, disease diagnosis, gene expression analysis and protein structure determination) is included. The book is an excellent introduction for students (as a textbook) and researchers (as a reference work). The information it presents will prepare readers to understand and develop research methods in life science laboratories for different projects and activities.

A daring collection of fiction, nonfiction and poetry about the effects of technology on our lives, our sexuality, and how we love. Some are playful and romantic. Some deal with loneliness and disconnection. Some address struggles with addiction, alienation, and the burning desire for fame. From the investigation of artificial intelligence in The Call to the unvarnished truth behind Send Nudes, its an edgy read on contemporary culture.Our contributors: Ross Baxter, Julian Bishop, Piotr Bockowski, Andrew Bowen, Kes Brookland, Erica Buist, Roger Craik, Ugochukwu Damian, Rab Ferguson, Liam Hogan, Lydia Hounat, Lydia Luke, Tamara MacLeod, Aidan Martin, Drew Pisarra, QM, Asad Raja, Radoslav Rochallyi, Ellie Stewart, Calum Walker, Gregory Wilder and Kristan X.

Ateismo e religione, due facce della stessa medaglia. Questo libro spiega lorigine del tutto partendo dal concetto filosofico di Albert Einstein: la scienza senza la religione e zoppa, la religione senza la scienza e cieca. La ricerca e basata sullindirizzo degli eventi che hanno plasmato luniverso, dal Big Bang ad oggi. Lo studio evidenzia una serie di circostanze sistemiche di rigore matematico che fluiscono in una volonta.

Novas tecnologias impactam cada vez mais as atividades jurídicas, apesar da resistência da maioria dos operadores tradicionais do direito. Nesta obra, superatual e de linguagem acessível, Ana Blasi n

Levoluzione del pianeta ha seguito costantemente un cammino lineare, non interrotto, diretto, di evoluzione e sintesi, dapprima atomica poi chimica, inorganica, poi organica e infine biologica. Levoluzione delle specie viventi ha seguito un percorso parallelo ma non lineare, fatto di mutazioni, sviluppi, consolidamenti diffusivi ed estinzioni in funzione delle condizioni ambientali che di volta in volta si sono affermate. La specie umana sapra adattarsi ai rapidi cambiamenti ambientali in corso (come per altro ha gia fatto piu volte per giungere allattuale Homo sapiens sapiens, lunica specie umana rimasta senza perdere i frutti della sua attuale civilta?2021 lanno della pandemia mondiale da Covid e degli stati generali di Glasgow sul clima che avrebbe dovuto raggiungere impegni concreti dopo le vane promesse di Parigi e Tokio.Pur a conoscenza di tutto questo e con la nuova tecnologia, un ulteriore passo avanti nellevoluzione, lumanita istituzionalmente rappresentata non ha fatto, almeno in questi trentanni, nulla per migliorare lintegrazione delle popolazioni, per limitare le disuguaglianze economiche e sociali e di sfruttamento anche delle risorse, senza sfruttarne la combinazione epocale di perfette condizioni ecologiche (per luomo).Leffetto serra e i cambiamenti climatici iniziano a far sentire i propri effetti deleteri sulle strutture sociali ed economiche della nostra civilta in espansione numerica. Intere specie viventi animali e vegetali rischiano di estinguersi, molte lo hanno fatto e molte lo faranno in un periodo relativamente breve, specie umana tipo sapiens sapiens, compresa lasciando spazio a nuove forme di vita maggiormente adatte o adattate alla nuova situazione ambientale. La realta, quella passata, presente e futura prevedibile, viene ignorata e arrogantemente, si continua a pensare di poter dominare e controllare a proprio esclusivo utilizzo, a diseguale e parziale beneficio, la natura.Un quadro dinsieme troppo spesso dimenticato da chi si concentra specialisticamente sui dettagli o che da questi deve partire per ricostruirlo. Unagile e interessante lettura di un quaderno degli appunti in seguito consultabile, piu utilizzabile, piu didattico. La vita comunque sopravvivra, correra per tutti i suoi lunghissimi tempi, rifiorira.Tocchera agli studenti, agli insegnanti, agli appassionati, a chi si interessera della materia, magari incuriosito o stimolato da questa lettura, approfondire.

Embark on a thought-provoking journey with "Dark Clouds in Germanys Climate Policy" by Diego Hidalgo-Oñate, as he bravely confronts the perplexing shadows lurking within Germanys climate policy. This essay boldly unveils the cognitive dissonance that clouds the nations noble environmental aspirations, particularly the rise in the use of hydrocarbons as a primary energy source, in direct contradiction to the principles of ecological economics.Hidalgo-Oñate, armed with meticulous research and a deep-rooted passion for sustainable progress, dissects the intricacies of Germanys climate policies. He sheds a glaring light on the paradoxes and inconsistencies that obstruct the nations path to a sustainable and ecologically balanced future. Through articulate arguments and a keen eye for detail, the author challenges conventional wisdom, urging for a reevaluation of current energy practices.As you delve into the pages of this enlightening essay, you will be captivated by the narratives call for reflection and action. Hidalgo-Oñate doesnt merely critique; he offers viable alternatives and a roadmap towards a greener and more sustainable Germany. The writing sparks conversations and encourages readers to reevaluate their perspectives on energy consumption, climate policies, and their individual roles in safeguarding our planet."Dark Clouds in Germanys Climate Policy" is more than a critique; its a call to arms, an awakening to the pressing need for a unified, conscientious approach to energy and environmental policies. This essay challenges us to rise above the shadows, to embrace sustainable alternatives, and to envision a world where policy and practice align seamlessly for the benefit of both humanity and the planet. Let this essay be your guiding light into a future free of dark clouds, as we navigate towards a greener, more sustainable tomorrow.

The universe is full of matter and the attractive force of gravity pulls all matter together.The expansion of the universe has not been slowing due to gravity, as everyone thought, it has been accelerating.Maybe it was a result of a long-discarded version of Einsteins theory of gravity, one that contained what was called a "cosmological constant." Maybe there was some strange kind of energy-fluid that filled space. Maybe there is something wrong with Einsteins theory of gravity and a new theory could include some kind of field that creates this cosmic acceleration.It turns out that roughly 68% of the universe is dark energy. Dark matter makes up about 27%. The rest - everything on Earth, everything ever observed with all of our instruments, all normal matter - adds up to less than 5% of the universe. Come to think of it, maybe it shouldnt be called "normal" matter at all, since it is such a small fraction of the universe.Balungi Francis explains this major conundrum in modern science and looks at how scientists are beginning to find solutions to it. bit.ly/thenexteinstein or bit.ly/findyogeniusnow

Ao longo de sua vastíssima obra, Edgar Allan Poe retratou as mulheres múltiplas e diversas vezes. Sendo assim, seguindo um método de classificação com base nos papéis que essas mulheres exerceram nas

According to current observations, two mysterious phenomena appear in the universe that science has not yet explained. These are mass or dark matter and dark energy. It is known of the existence of dark matter, among other effects, by the study of the rotation of galaxies where it is appreciated that the outer stars should come out tangentially if only the gravitational force of the mass seen is considered, concluding that there must be a hidden mass or matter, or perhaps some unknown effect that implies greater gravitational force.On the other hand, based on the observations of astronomer Hubble in the twenties of the previous century, it was determined that the universe is expanding from its origin or big-bang , considering that the gravitational force between galaxies causes expansion to be increasingly slowerThe surprise was that at the end of the last century it was observed that in the distant galaxies there was no retreat but they accelerated, that is, they are increasingly separated more quickly, ignoring the precedence of the energy that produces the effect, to which was named dark energyIn this small book a suggestive proposal is exposed describing effects in the movement of bodies of great mass that can be applied to the understanding of the origin of the dark matter and dark energy, considering that in the process of expansion the dark mass is transformed into dark energy, fulfilling the laws of conservation of energy and the linear momentum.

Darwin and the Barnacle by Rebecca Stott, lavishly illustrated and superbly told, is the fascinating story of how genius sometimes proceeds through indirection - and how one small item of curiosity contributed to historys most spectacular scientific breakthrough.

El evolucionismo darwinista, no sólo es uno de los paradigmas del moderno saber biológico, sino también ha significado un cambio en las concepciones del hombre y del mundo que, desde el siglo XIX, pretenden basarse en la ciencia. Por ello, el impacto que tuvo -y que continua teniendo- la recepcion de la obra de Darwin sobrepasa los limites del mundo academico para convertirse en un tema de debate publico. Este libro reune diversas contribuciones de Thomas F. Glick a la difusion de las ideas evolucionistas en la sociedad española, que van desde la primera recepcion de las tesis darwinistas a finales del siglo XIX hasta la evocacion de las relaciones entre eminentes paleontologos como Miquel Crusafont y George G. Simpson, pasando por el homenaje universitario de Valencia de 1909 y la repercusion del famoso juicio de Dayton en la prensa española de los años veinte.

Come professore, oggi ho spiegato Darwin e subito dopo, durante la ricreazione, ho scritto questo breve libro su Darwin e i gorilla, molto simpatico e originale come sempre. Buona lettura a tutti qua

La formulación de Charles Darwin de la teoría de la evolución, y su tan asumida idea fundamental de la "supervivencia de los más aptos" es, hoy en día, si no algo perfectamente demostrado, sí algo generalmente aceptado como logico y evidente. En su tiempo, sin embargo, su revolucionaria obra "El origen de las especies" y la nocion de que la humanidad es solo un paso mas en un proceso de supervivencia y seleccion en desarrollo fueron escandalosas."Darwin y la evolucion" constituye un brillante repaso a la vida y obra de Darwin y ofrece una explicacion clara y accesible del significado y la importancia de la teoria de la evolucion y de lo que implica para el mundo en que vivimos.