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Polymer technology saves face
Polymeric surgical implants Oxygen Probably Present 50 To 100 Million Years Earlier Than First Bel
Traces of oxygen appeared in Earth's atmosphere roughly 100 million years before the "Great Oxidation Event"2.4 billion years ago, according to new research. Analyzing layers of sedimentary rock in a kilometer-long core sample scientists retrieved in 2004 from the Hamersley Basin in Western Australia, the researchers found evidence for the presence of a small but significant amount of oxygen 2.5 billion years ago in the oceans and likely also in Earth's atmosphere. Size Matters ... If You're A Rodent
Promiscuity is common among female rodents, leading to competition between the sperm of rival males over who fertilizes the eggs. It now seems that possessing a longer penis may give males an advantage in this competition. The data for rodents seem pretty clear cut. Species where sexual competition between males is most intense also tend to have the longest penises. But, interestingly, a similar pattern was not detected in either primates or bats. Interstate 35W Bridge Collapse
Minnesota state government documents concerning the August 2007 collapse of the I-35W Mississippi River bridge in Minneapolis. Provides news and updates, inspection expenditures (2004-2007), recent inspection reports (including fatigue evaluation), an inventory of deficient trunk highway bridges in Minneapolis (released August 2007), and related material. From the Minnesota Department of Transportation (Mn/DOT). [Scary] Pregnant woman says 'maternal instinct' helped her kill attack
FORT MITCHELL, Ky. - A pregnant woman who killed her attacker said a maternal instinct helped her fight off the woman who investigators believe was after her unborn child."I do believe that I fought harder because it was for my child,"Sarah Brady told ABC's "Good Morning America"in interviews aired Sunday and Monday. "It is a maternal instinct to protect your child to the very end."Katherine Smith, 22, died Thursday after luring Brady to her apartment to pick up a package supposedly delivered to the wrong address. When Smith pulled out a knife and attacked the pregnant woman, Brady fought back, striking Smith on the head with an ash tray and stabbing her three times with her own knife, police said. Brady, 26, said she didn't know Smith before the two met at Smith's apartment and can't be certain why Smith wanted to kill her."I really am not sure what was going through her mind,"Brady told ABC. "The only thing I thought was that she was going to kill me and my child and that is the only thing that ran through my mind." Rants: Heroes vs. the IPod Killer
Readers opine on the twits in tights and taking a bite out of Apple's iPod. Plus: Links to our most commented-upon blog posts. Three Anti-platelet Drugs Used In Combination Are Safe
Three drugs, each of which works in a different way, are used in anti-platelet therapy to help prevent restenosis (the reclogging of blood vessels after they have been cleared with percutaneous coronary intervention or PCI) or thrombosis (obstruction of an artery or vein by a blood clot). Prepare My Child for School: Helping Your Preschool Child
"This booklet is for families and caregivers who want to help their preschool children to learn and to develop the skills necessary forsuccess in school -- and in life."It includes sections on the education and development of babies, toddlers, and preschoolers; tips for preparing a child for kindergarten, selecting TV programming, and choosing child care; and related material. Also available in Spanish. From the U.S. Department of Education. R Rating Might Be Unlikely To Affect Teens Exposure To Smoking In Movi
Several recent research studies published in the US have determined that young adolescents who see smoking scenes in movies are more likely to smoke. To combat smoking among youth, public health groups have called for restricted ratings for movies that depict smoking. A new study from New Zealand, however, calls that strategy into question, noting that the R rating may not have the intended effect of putting such movies 'out of reach'of children. WiredEditors Tell What They're Wishing For
Ever wonder what Wired's editors want from Santa? Here's your chance to peek at their personal wishlists.
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