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La sélection scientifique de la semaine (numéro 104)
samedi 11 janvier 2014 par Pierre Barthélémy — Actualité, Environnement, Improbablologie, Science, Sélection, Abeilles, Archéologie, Astronomie, Cancer, Chauves-souris, Chocolat, Cryogénie, Essais nucléaires, Girafes, Mort, Naines brunes, Neurosciences, Obésité, Radioactivité, Recherche, Religion, Tabac
Tout un symbole : la Chine a dépassé l'Union européenne dans le pourcentage de son PIB consacré à la recherche et au développement. (en anglais) - A méditer aussi : le Canada détruit sans trop de vergogne une partie de son … Continuer la lecture (...)
Why drug discovery is hard - Part 3: Vacuum cleaners that make Sir James Dyson weep
vendredi 10 janvier 2014 — Evolution,Mind & Brain,More Science,Health,Technology
P-glycoprotein (PgP): A combination of vacuum cleaner and high-powered pump that is designed to eject drug molecules out of the cell( Image: Wikipedia Commons) This is part 3 of a series of posts... -- Read more on ScientificAmerican.com
Octopus Arms, Human Tongues Intertwine for Science
vendredi 10 janvier 2014 — Evolution,More Science,Health,Mind & Brain
Image courtesy of Flickr/Joe Parks Unless you’ve eaten sannakji, the Korean specialty of semi-live octopus, you might never have had a squirming octopus arm in your mouth. [More] -- Read more on ScientificAmerican.com
Fish Go Birding [Video]
Tigerfish have now been confirmed to swallow swallows after grabbing them out of the air over a lake in South Africa -- Read more on ScientificAmerican.com
Fish Go Birding [Video]
jeudi 9 janvier 2014 — Evolution,More Science,Evolutionary Biology,Biology,Evolution
The waters of the African lake seem calm and peaceful. A few migrant swallows flit near the surface. Suddenly, leaping from the water, a fish grabs one of the famously speedy birds straight out of... -- Read more on ScientificAmerican.com
L’institutrice qui savait écrire… mais plus lire
jeudi 9 janvier 2014 par Pierre Barthélémy — Cerveau, Accident vasculaire cérébral, Agraphie, Alexie, Lecture, Neurologie
Dans un de ses cours consacrés aux mécanismes cérébraux impliqués dans la lecture, Stanislas Dehaene, professeur au Collège de France, citait cet extrait de Feu pâle, de Vladimir Nabokov : "Nous sommes absurdement accoutumés au miracle de quelques signes écrits capables de contenir … Continuer la lecture (...)
Shocking Study Finds Lions are Nearly Extinct in West Africa
mercredi 8 janvier 2014 — Energy & Sustainability,More Science,Evolution
Physically and emotionally demanding. That’s how Philipp Henschel, Lion Program Survey Coordinator for the big-cat conservation organization Panthera , describes the six years he and other... -- Read more on ScientificAmerican.com
Slowly Evolving Elephant Shark Offers Clues about Why Some Fishes Have No Bones
The elephant shark is a relic of a bygone age. Like the coelacanth , it is sometimes referred to as a “living fossil,” a creature alive today that has changed little since it first... -- Read more on ScientificAmerican.com
Island Lizards Are Tamer Than Mainland Counterparts
mercredi 8 janvier 2014 — More Science, Biology, History of Science, Evolution, Evolutionary Biology
The finding could be due to lower predator numbers on islands -- Read more on ScientificAmerican.com
Island Lizards Are Tamer Than Mainland Counterparts
mercredi 8 janvier 2014 — Evolution,History of Science,Evolutionary Biology,Evolution,Biology,More Science
When Charles Darwin visited the Galapagos Islands, he noted that many of its animal inhabitants were so unafraid of people that “a gun is here almost superfluous”. He swatted birds with... -- Read more on ScientificAmerican.com
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