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«Création contre évolution ?» C'est le thème du colloque organisé le week-end des 24 et 25 mars par les scientifiques chrétiens du réseau Blaise-Pascal «En choisissant, il y a deux ans, le thème de notre prochain colloque, nous avons eu le nez creux»,...
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Anti-malaria mosquitoes prove extra fit Insects bred to fight disease outlive natural breeds. Hannah Hoag Mosquitoes engineered to kill off the parasite that causes malaria seem to live long and prosper. WHO Mosquitoes engineered to not transmit malaria...
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Better sonar through dolphin teeth Dental arrays may be optimized for sound in shallow waters. Heidi Ledford Smile: his pearly whites could help him find fish as well as eating them. Getty A model of how dolphins may use their teeth to receive sound could...
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http://www2.cnrs.fr/presse/communique/1054.htm Depuis le début de l'ère industrielle, l'océan a absorbé environ la moitié des émissions anthropiques(1) de gaz carbonique (CO2) dans l'atmosphère, entraînant une acidification de l'eau de mer. Frédéric Gazeau,...
Lire la suitehttp://www.ruedutexel.net/smlr/index/?idarticle=425 L'envie compulsive de fumer que ressentent les drogués du tabac pourrait venir de leur insula. Une étude américaine montre en effet que, après une lésion cérébrale touchant ce lobe du cerveau connu pour...
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HapMap est un catalogue des variations génétiques les plus fréquentes chez l'humain. Il décrit la nature des variantes, leur emplacement dans la séquence d'ADN et leur distribution au sein d'une population et entre les populations dans différentes parties...
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How fat genes differ from thin ones Resequencing effort unpicks genetics of body extremes. Erika Check Growth area: resequencing, used here to investigate the genetics of body size, is getting to be big. Alamy Researchers have used a new technique to...
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Life is faster in the temperate zone Evolution of species is more leisurely in the tropics. Michael Hopkin http://www.nature.com/news/2007/070312/full/070312-8.html This male 'Masked Tityra' is closer to its sister species than birds in the tropics are...
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Astronomers hash out defense against asteroids A billion dollars needed to spot potential killer impacts. Jeff Kanipe Crash landing: how do we stop this from happening? Don Davis/NASA Astronomers trying to save the world from Earth-threatening asteroids...
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Earth's magnetic field reversals mimicked in the lab The switching of the poles can be studied in a tub of molten metal. Philip Ball Poles apart: our planet's field flips every now and then - though no one knows why. NASA Every few hundred thousand years...
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