検索キーワード： 生物学

She Has Her Mother’s Laugh presents a profoundly original perspective on what we pass along from generation to generation. Charles Darwin played a crucial part in turning heredity into a scientific question, and yet he failed spectacularly to answer it. The birth of genetics in the early 1900s seemed to do precisely that. Gradually, people translated their old notions about heredity into a language of genes. As the technology for studying genes became cheaper, millions of people ordered genetic tests to link themselves to missing parents, to distant ancestors, to ethnic identities....

Created by experts and authorities in the field and professionally narrated for easy listening, this crash course is a valuable tool both during school and when preparing for the USMLE, or if you're simply interested in obstetrics. The audio is focused and high yield, covering the most important topics you might expect to learn in a typical medical school obstetrics course. The material is accurate, up to date, and broken down into bite-sized sections. There is a Q&A and a key takeaways section following each topic to review questions commonly tested and drive home key points. 

Bigfoots aren't real, you might say. They're just a myth, a story, a scam, a hoax, a publicity stunt. All of those things and more have been said on the subject. And yet, for decades now, scientists all over the world have spent millions, in both cash and man-hours, investigating this phenomenon. Why would they do this? Why spend time and money on a myth? Why dedicate your life to a practical joke? Because that's what it must be, right?

Despite advances in health care, infectious microbes continue to be a formidable adversary to scientists and doctors. Vaccines and antibiotics, the mainstays of modern medicine, have not been able to conquer infectious microbes because of their amazing ability to adapt, evolve, and spread to new places. Terrorism aside, one of the greatest dangers from infectious disease we face today is from a massive outbreak of drug-resistant microbes.

For those who enjoyed Amazing Gracie or Merle’s Door, here is a completely new tale of a rescued dog who becomes the unlikely purveyor of a powerful gift. What if most people have it wrong, and miracles are not the exception but the norm? Flash’s Song is the true account of how one person discovered the secret of miracles. It is a story of the power of laughter, the power of family, and, ultimately, the power of love to get us through life.

Wie kann ein Delfin, noch dazu ein Tier, das in einem uns so fremden Element beheimatet ist, uns Menschen so gut erreichen? Wie ist es Delfinen möglich, kranke Menschen aus ihrer Isolation und Verzweiflung hervorzulocken und ihren körperlichen und seelischen Heilungsprozess zu fördern? Wie kommt ein Austausch von Gefühlen zwischen so gegensätzlichen Arten eigentlich zustande? Und wie können Geschöpfe miteinander kommunizieren, wenn sie auch nicht annäherungsweise über ein vergleichbares Zeichen- und Symbolsystem verfügen?

Max Delbrück, geboren am 4. September 1906 in Berlin, gestorben am 10. März 1981 in Pasadena. Physiker und Biologe, Begründer der Molekulargenetik, 1969 ausgezeichnet mit dem Nobelpreis für Medizin und Physiologie, ist hier in Originaltonaufnahmen als Vortragender, Interviewpartner und Sänger zu hören.

Il 27 dicembre 1831 un brigantino inglese, la Beagle, salpa da Devonport, al comando del capitano Fitz Roy, con a bordo Charles Darwin, a quell'epoca ventiduenne. Scopo della spedizione era completare il rilevamento della Patagonia e della Terra del Fuoco, ispezionare le coste del Cile, del Perù e di alcune isole del Pacifico ed eseguire una serie di misure di longitudine attorno al mondo.

Cosa sono le cellule staminali? E perché molti scienziati non si accontentano di studiare le staminali adulte e continuano ad interessarsi alle embrionali? Considerate da molti una speranza per risolvere patologie incurabili, queste cellule sono da qualche anno uno dei temi caldi del dibattito pubblico, poiché le loro potenzialità applicative rappresentano un terreno di scontro tra diverse concezioni etiche, giuridiche e religiose.

Quando e dove è iniziata la vita? E a cosa somigliavano le prime forme di vita? Interrogativi che l'uomo si pone da sempre, per i quali, pur in mancanza di risposte definitive, si possono avanzare alcune ipotesi. Come quella che colloca l'origine della vita intorno a 3,8 miliardi di anni fa, in un contesto riconducibile a uno di questi ambienti: brodo primordiale, campi geotermali, siti di impatto meteoritico. Certo è che le tessere del più grande e affascinante dei puzzle restano RNA, amminoacidi, protogeni, protocellule.

La storia del nostro pianeta è inscindibilmente legata alla storia della vita sulla terra e alla sua straordinaria varietà. Senza la biodiversità la vita scomparirebbe. Nell'immensa comunità naturale di cui facciamo parte essa infatti consente a tutti i suoi componenti di modificarsi moltiplicando le strategie di sopravvivenza per adattarsi alla mutevolezza dei contesti. L'autore analizza dapprima strutture e funzioni della biodiversità - a tutti i livelli della biosfera tra loro interconnessi e complementari - dalle molecole agli organismi, alle specie, agli ecosistemi.

Da sempre l'uomo ha selezionato piante, animali, microrganismi per soddisfare i suoi bisogni. Oggi le biotecnologie avanzate permettono di trasferire geni fra organismi che non è possibile incrociare naturalmente, ma con effetti altamente imprevedibili. Il volume, ripresentato in edizione aggiornata, muove da una descrizione dei meccanismi che regolano il delicato equilibrio alla base della vita e spiega perché occorre essere cauti quando lo si modifica drasticamente.

Siamo abituati a concepire la Storia come il susseguirsi sanguinoso di imperi e dinastie. Ma il cammino dell'uomo può essere studiato anche in ambiti specifici del suo ingegno - nell'arte, nella filosofia o nelle scienze. Questo audiolibro propone una chiave molto stimolante attraverso cui "ricapitolare" la storia dell'umanità: quella che vede l'essenza del nostro genere nell'"essere artefice". Perché, a pensarci bene, dietro ogni passo dell'uomo c'è sempre un'invenzione o un manufatto che ha avuto nei secoli imprevedibili sviluppi.

Comment à partir d'une toute petite cellule unique, est-il possible d'obtenir un organisme aussi complexe que celui d'un être vivant ? Par quel phénomène fascinant passe-t-on de l'embryon à l'Homme ? Ce sont ces interrogations qui ont accompagnées Nicole Le Douarin tout au long de son parcours scientifique. Cette grande biologiste française s'est notamment distinguée par ses travaux sur les chimères, ces êtres hybrides qu'elle a elle-même conçus en injectant des cellules de caille dans un embryon de poulet.

Extrêmement complexe, notre cerveau livre peu à peu ses mystères grâce aux recherches récentes. On connaît mieux aujourd'hui l'ensemble du système nerveux, la structure du cerveau, les éléments qui le composent, et, contrairement aux idées reçues, ses indéniables capacités d'évolution, voire de régénération. Grand régulateur des fonctions vitales (respiration ou sommeil), siège des fonctions évoluées (langage ou pensée), le cerveau peut être victime de dérèglements dramatiques.

Why was gin and tonic the cocktail of choice for British colonists in India and Africa? What does Starbucks have to thank for its global domination? What has protected the lives of popes for millennia? Why did Scotland surrender its sovereignty to England? What was George Washington's secret weapon during the American Revolution? The answer to all these questions, and many more, is the mosquito. Driven by surprising insights and fast-paced storytelling, The Mosquito is the extraordinary untold story of the mosquito’s reign through human history.

Long Litt Woon met Eiolf a month after arriving in Norway from Malaysia as an exchange student. They fell in love, married, and settled into domestic bliss. Then Eiolf’s unexpected death at 54 left Woon struggling to imagine a life without the man who had been her partner and anchor for 32 years. Adrift in grief, she signed up for a beginner’s course on mushrooming - a course the two of them had planned to take together - and found, to her surprise, that the pursuit of mushrooms rekindled her zest for life.

We have lost the war on cancer. We spend $150 billion each year treating it, yet - a few innovations notwithstanding - a patient with cancer is as likely to die of it as one was 50 years ago. Most new drugs add mere months to one's life at agonizing physical and financial cost. In The First Cell, Azra Raza offers a searing account of how both medicine and our society (mis)treats cancer, how we can do better, and why we must. 

In Survival of the Prettiest, Nancy Etcoff, a faculty member at Harvard Medical School and a practicing psychologist at Massachusetts General Hospital, argues that beauty is neither a cultural construction, an invention of the fashion industry, nor a backlash against feminism - it's in our biology.    

In The Marsh Builders, Sharon Levy delves into the intertwined histories of wetlands loss and water pollution. The book's springboard is the tale of a years-long citizen uprising in Humboldt County, California, which led to the creation of one of the first US wetlands designed to treat city sewage. The book explores the global roots of this local story: the cholera epidemics that plagued 19th-century Europe; the researchers who invented modern sewage treatment after bumbling across the insight that microbes break down pollutants in water; and more.