Resultados para "A B" en Ciencia e ingeniería

Este audiolibro repasa la historia del plástico y el peligro que su consumo desmesurado supone para el medioambiente. Además, los autores te explicarán, desde su propia experiencia y con mucho humor, maneras supercreativas de evitarlo.

I primi ad accorgersi che qualcosa è cambiato sono i commessi dei negozi: quel giorno stanno clamorosamente mancando gli obiettivi di vendita. Poche ore dopo i responsabili di zona mandano resoconti preoccupati ai loro capi. Il giorno successivo gli addetti ai magazzini dei maggiori siti di shopping online vedono i loro ritmi frenetici rallentare. Nel giro di pochi giorni il colore del cielo cambia con il calare delle emissioni di anidride carbonica. Il mondo ha smesso di comprare: non è l’inizio di un romanzo distopico; è l’unica cosa che può salvare noi e la Terra.

In this Very Short Introduction, Paul B. Wignall looks at the causes and nature of extinctions, past and present, and the factors that can make a species vulnerable. Summarizing what we know about all of the major and minor extinction events, he examines some of the greatest debates in modern science, such as the relative role of climate and humans in the death of the Pleistocene megafauna, including mammoths and giant ground sloths, and the roles that global warming, ocean acidification, and deforestation are playing in present-day extinctions.

One of Kenyon College’s most honored professors, Timothy B. Shutt is widely renowned as a gifted polymath and lecturer. The night sky was the ancient world’s cinema, and storytellers have used this panorama to weave fascinating tales since the earliest days of mankind. This captivating series of lectures explores the mythological sagas found in the night sky and the history behind the names of the great constellations.

Florida's Space Coast tells the compelling story of America's half century in space exploration from the successful launch of the first two-stage rocket in 1950 through the space shuttle missions of 2000. Told from the unique viewpoint of the people who built the Spaceport, this book shows how the space program transformed the east central Florida coast from a traditional citrus production and tourist area to one of the most influential high-tech centers in the nation.

Bridging the gap between the world of science and the realm of the spiritual, Wallace, a pioneer of modern consciousness research, offers a practical and revolutionary method for exploring the mind that combines the keenest insights of contemporary physics and philosophers with the time-honored meditative traditions of Buddhism.

Not far from Seattle skyscrapers live 150-year-old clams, more than 250 species of fish, and underwater kelp forests as complex as any terrestrial ecosystem. For millennia, vibrant Coast Salish communities have lived beside these waters dense with nutrient-rich foods, with cultures intertwined through exchanges across the waterways. Transformed by settlement and resource extraction, Puget Sound and its future health now depend on a better understanding of the region's ecological complexities.

Birding for Boomers is a friendly, accessible, and humorous guide to discovering the joys of bird watching. Beginning birders of all ages will get answers to every question they may have, like which birds like feeders, the difference between a finch and a flicker, or which birding app to use. The guide also helps birders plan everything from local explorations to exciting "bird-cations."

The Modern Scholar series offers you college-level courses taught by the world's most respected professors. As these expert teachers guide you through the course material, you become more knowledgeable and better versed in the subject. Learning has never been easier or more enjoyable!

Neurobiology is a notoriously difficult subject, but Neurobiology For Dummies explains the essentials in terms anyone can understand. This fun and accessible book covers the fundamentals, covering the anatomy, physiology, and pathology of the nervous system. Students in fields like neuroscience and pharmacology will get a complete overview of the molecular and cellular mechanisms of the nervous system, making it easier to complete coursework and pass exams. In this updated edition, fresh examples highlight the latest research, so you'll be prepared with a current understanding of the science.

Ignác Semmelweis is remembered for the now-commonplace notion that doctors must wash their hands before examining patients. In mid-19th century Vienna, however, this was a subversive idea. With deaths from childbed fever exploding, Semmelweis discovered that doctors themselves were spreading the disease. While his simple reforms worked immediately - childbed fever in Vienna all but disappeared - they brought down upon Semmelweis the wrath of the establishment, and led to his tragic end.

How does life work? How does nature produce the right numbers of zebras and lions on the African savanna, or fish in the ocean? How do our bodies produce the right numbers of cells in our organs and bloodstream? In The Serengeti Rules, award-winning biologist and author Sean B. Carroll tells the stories of the pioneering scientists who sought the answers to such simple yet profoundly important questions.

What is life? Many scientists believe life can be reduced to ‘mechanistic’ factors, such as genes and information codes. Yet there is a growing army of scientists, philosophers and artists who reject this view. The gene metaphor is not only too simplistic but deeply misleading. If there is a way to reduce life to a single principle, that principle must acknowledge the creativity of life, turning genetic determinism on its head.

Before there was Steve Jobs, there was Norman Bel Geddes. A ninth-grade dropout who found himself at the center of the worlds of industry, advertising, theater, and even gaming, Bel Geddes designed everything from the first all-weather stadium to Manhattan's most exclusive nightclub to Futurama, the prescient 1939 exhibit that envisioned how America would look in the not-too-distant 1960s.

La Terra è il pianeta blu. Ma la nostra conoscenza del mare è spesso approssimativa e superficiale. L'autrice ci guida alla scoperta dei suoi abitanti adottando un punto di vista tutto particolare: il loro! Scopriremo così come si muovono, in che modo si corteggiano e riproducono, come percepiscono quanto li circonda e interagiscono tra loro. Nel mare troviamo un gran numero di specie viventi, molte ancora da scoprire. Conoscere la ricchezza e la fragilità del mondo sommerso significa anche porsi il problema di tutelarlo e difenderlo da un uso sconsiderato delle sue risorse.

He pulled off what some deem the crime of the century: skyjacking a commercial jetliner, collecting a ransom of $200,000, parachuting off the aft stairs of the Boeing 727 into the night, and simply disappearing. Since November 1971, “D. B. Cooper”—no one knows his real name or identity—has become a figure of enduring fascination and obsession. The FBI pursued him for over forty years, before closing the case and leaving it unsolved. Unsolved, perhaps, but much admired. D. B. Cooper’s exploit over the skies of the American Northwest has inspired books, films, and endless speculation.

I nostri geni non sono scolpiti nella pietra e i nostri fattori ereditari non sono un' "impronta digitale" fissa e immodificabile. Un essere umano infatti è molto più della somma dei suoi geni. Tutto quello che mangiamo, facciamo e sentiamo, tutto ciò che ci accade può influire sull'attività del DNA, a prescindere dalla configurazione genetica con la quale nasciamo. L'epigenetica, cioè la branca della genetica che si occupa di indagare le variazioni dell'espressione del nostro DNA, ci porta infatti una buona notizia: tali variazioni sono reversibili.

Chemistry and Our Universe: How It All Works is your in-depth introduction to this vital field, taught through 60 engaging half-hour lectures that are suitable for any background or none at all. Covering a year’s worth of introductory general chemistry at the college level, plus intriguing topics that are rarely discussed in the classroom, this amazingly comprehensive course requires nothing more advanced than high-school math. Your guide is Professor Ron B. Davis, Jr., a research chemist and award-winning teacher at Georgetown University.

Together, we can change the world. There is little doubt that our beautiful planet is now under huge threat; our weather is more extreme, plastic litters our oceans, industrial production and farming methods wreak havoc on the environment and mass deforestation has led to the extinction of many species. Carry on this way and it’s almost certain that sea levels will continue to rise, there will be extreme heatwaves, loss of the polar ice caps and mass pollution.

For over a century, opening the black box of embryonic development was the holy grail of biology. Evo Devo--Evolutionary Developmental Biology--is the new science that has finally cracked open the box. Within the pages of his rich and riveting book, Sean B. Carroll explains how we are discovering that complex life is ironically much simpler than anyone ever expected.