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POPSAging may be a mistake, and not a given "I don't think there are any theories that account for the vast differences in life spans between animals. Nobody knows why we age in 80 years and chimpanzees age in 40," he said. Kim said he thinks the worm results may one day answer questions such as why the human kidney ages faster than the liver or why some clams live for 400 years and whales can live for 200 years. "Why can't I live as long as a whale? How hard would it be?" he asked. it is a very good question...
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POPSD-Mab Does It Amgen's osteoporosis drug met its goals, and serious infections may be less of a problem than expected. But the devil will be in the details -- it's hard to gauge the potential for the drug without more information on safety and efficacy. This is a medicine that will compete with long-marketed drugs and cheap generics. Still, this is good news for Amgen, which is why the stock is up 15% in after-hours trading. Quotes from the press release are below; click the link to read the whole thing.
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POPSInteresting article wouldn't clip......see it here http://www.govpro.com/News/Article/31439/
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POPSPsychology, Sociology most politically correct fields The first thing that Simmons does in the study with the database — which covers a range of disciplines and institution types — is to identify a politically correct cohort, reflecting largely common views on a set of issues that are seen as defining political correctness. He finds a set of issues that produce this cohort. The views are the belief that gender gaps in math and science fields are largely due to discrimination; support for affirmative action; and belief that discrimination is a key cause of racial inequities in American society. Generally, members of this cohort see race and gender as fundamental — and share that belief much more than beliefs about the curriculum or scholarship, such that the study says that “multiculturalism trumps postmodernism.” Via Tyler Cowen
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POPSEarly intervention works This study, out of UNC, found that early intervention BEFORE children reached school age had impact well beyond the first years of school.
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POPSCat parasite in humans makes them like cat urine
Parasite "Brainwashes" Rats Into Craving Cat Urine, Study FindsBen Harder for National Geographic News April 3, 2007 The parasite Toxoplasma gondii uses a remarkable trick to spread from rodents to cats: It alters the brains of infected rats and mice so that they become attracted to—rather than repelled by—the scent of their predators. A new study reveals that rodents infected with the parasitic protozoa are drawn to the smell of cat urine, apparently having lost their otherwise natural aversion to the scent. The parasite can only sexually reproduce in the feline gut, so it's advantageous for it to get from a rodent into a cat—if necessary, by helping the latter eat the former. In rodents, "brain circuits for many behaviors overlap with the brain circuits responsible for fear," said Ajai Vyas of Stanford University, who led the new study. "One would thus assume that if something messes up fear of cat pee, it will also mess up a variety of related behaviors." Bu
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POPSDinosaurs Diversified Over Time, not Suddenly During this epoch of riotous biodiversity, flowering plants, social insects, butterflies, modern groups of lizards, mammals, and possibly birds, too, all emerged. Some experts have suggested that dinosaurs were also part of the show, as so many weird fossils, such as duckbilled hadrosaurs, horned ceratopsians, pachycephalosaurs and other wonders, date from this time. But a new study, published on Wednesday in a British journal Proceedings of the Royal Society B, says that dinosaurs were less than a sideshow in the DNA spectacular. Researchers led by Graeme Lloyd of the University of Bristol, western England, devised a "supertree" of dinosaur evolution, patiently analyzing how more than 450 species -- about 70 percent of the known finds -- developed.
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POPSDino diversity earlier than first thought Maybe there is the idea that species including the dinosaurs were trying to deal with conditions brought about by the meteor, so many adaptations arose, but nature loves nothing more than competition, even when times are good.
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