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Socializing with Youth Improves the Elderly's Health, Life Span
Mercredi 06 Août 2008 - 22:00 - 3 mois, 2 semaines depuis - 4 lectures - Presse spécialisée - Scientific American
“Youth is a wonderful thing,” George Bernard Shaw once said. “What a crime to waste it on children.” Humor aside, recent research suggests that youthful energy may not be “wasted” after all. Through social interactions alone, the young can pass some of their vigor on to the elderly, improving the older generation’s cognitive abilities and vascular health and even increasing their life span.Although researchers have documented these benefits in mammals, such as rats, guinea pigs and nonhuman primates, the reason for the effect has remained unclear. Now biologist Chun-Fang Wu of the University of Iowa offers a genetic explanation in the May 27 issue of the Proceedings of the National Academy of Sciences. Wu and graduate student Hongyu Ruan found that the presence of youthful, active fruit flies doubled the life span of a group of flies with a mutation in Sod1, a gene that has been linked in humans to Alzheimer’s disease and amyotrophic lateral sclerosis (ALS), a motor-neuron disorder also known as Lou Gehrig’s disease. [More]

Aid Plan Aims to Help Poor Farmers Reach Markets
Mercredi 24 Septembre 2008 - 21:00 - 1 mois, 3 semaines depuis - 4 lectures - Presse généraliste - The Washington Post (health)
UNITED NATIONS, Sept. 24 -- In an ambitious move to combat the global food crisis, the Bill and Melinda Gates Foundation on Wednesday unveiled an experimental public-private initiative that could transform rural agriculture in undernourished parts of Africa and Latin America by helping small farmers...

Congress Vows $100 Million to Red Cross After It Asks for Aid
Mardi 07 Octobre 2008 - 21:00 - 1 mois, 2 semaines depuis - 4 lectures - Presse généraliste - The Washington Post (health)
Congress will give the American Red Cross $100 million in emergency funding to replenish its disaster relief reserves, which were depleted as the charity plunged into debt to provide shelter, food and other services during a string of hurricanes this summer.

Les télescopes affûtent leur regard
Vendredi 03 Octobre 2008 - 08:42 - 1 mois, 2 semaines depuis - 4 lectures - Presse généraliste - Nouvel Observateur Sciences
Grâce à l’amélioration permanente de l’optique adaptative, la vue des grands télescopes terrestres est de plus en plus nette. En témoigne cette image de Jupiter obtenue par des chercheurs au VLT, au Chili.

Beijing Olympics: BMX Bikers Search for Gold on Laoshan Mountain
Lundi 04 Août 2008 - 10:02 - 3 mois, 2 semaines depuis - 4 lectures - Presse spécialisée - Scientific American
China's first-ever Olympic summer games also marks the first time bicycle motocross (BMX) athletes can go for the gold in the world's most prestigious athletic event. Forty-eight BMX cyclists--including four Americans--will bring the sport from its humble dirt track origins in Orange County, Calif., all the way to the Laoshan Mountain track in Beijing.BMX racing is different from other Olympic cycling events in several key ways: the races last less than a minute, the bikes are small and low to the ground, and the racers must wear protective gear over their faces, heads and joints to protect against likely collisions. It introduces an element of "extreme sports" to the summer games expected to appeal to younger viewers, much the way snowboarding did when it debuted in 1998 at the Nagano, Japan, Winter Olympics, according to Bob Tedesco, managing director of the National Bicycle League in Hilliard, Ohio. [More]

News Bytes of the Week: Large Hadron Collider gets its own rap song
Vendredi 01 Août 2008 - 15:00 - 3 mois, 3 semaines depuis - 4 lectures - Presse spécialisée - Scientific American
LHC gets its own rap song [More]

Montagnier, Barre-Sinoussi and zur Hausen Share Nobel
Lundi 06 Octobre 2008 - 07:25 - 1 mois, 2 semaines depuis - 4 lectures - Presse spécialisée - Scientific American
A pair of French scientists who isolated the AIDS-causing human immunodeficiency virus (HIV) and a German scientist who determined that human papillomavirus (HPV) causes cervical cancer were awarded the Nobel Prize in Physiology or Medicine today. The Nobel committee's decision to give the prize to Luc Montagnier and Francoise Barre-Sinoussi, who isolated HIV in 1983, caps a long, bitter dispute between the Pasteur Institute in Paris, where they made their discovery, and American scientist Robert Gallo, who linked HIV to AIDS separately but was snubbed by the Nobel committee. [More]

Nobel Prize in Physiology or Medicine
Lundi 06 Octobre 2008 - 04:53 - 1 mois, 2 semaines depuis - 4 lectures - Presse spécialisée - Scientific American
[The following is an exact transcript of this podcast.]Germany’s Harald zur Hausen and France’s Luc Montagnier and Francoise Barre-Sinoussi share the 2008 Nobel Prize in Physiology or Medicine, awarded October 6th. [More]

What is benzene?
Vendredi 03 Octobre 2008 - 15:30 - 1 mois, 2 semaines depuis - 4 lectures - Presse spécialisée - Scientific American
Apple is investigating a complaint that its pre-2008 Mac Pros emit fumes from the chemical benzene. One user told Apple that he noticed a strong smell when he unpacked his Mac last year, and that 10 days later, he developed nose and throat irritation, reports the French newspaper Liberation. (A clunky English translation of the report can be found here.) [More]

He Defied The Doctors Until Death Defied Him
Lundi 22 Septembre 2008 - 21:00 - 1 mois, 4 semaines depuis - 4 lectures - Presse généraliste - The Washington Post (health)
Shortly before his birthday in May, Lorenzo Odone -- the inspiration for the 1992 movie "Lorenzo's Oil" -- came down with something. The objective sign that something was wrong came from the machines and monitors that surrounded his bed in Fairfax.

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