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Sunday, July 25, 2010

ScienceDaily Top Science Headlines -- for Sunday, July 25, 2010

ScienceDaily Top Science Headlines

for Sunday, July 25, 2010

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Graphene organic photovoltaics: Flexible material only a few atoms thick may offer cheap solar power (July 24, 2010) -- A research team has produced flexible transparent carbon atom films that the researchers say have great potential for a new breed of solar cells. ... > full story

Microbicide containing engineered bacteria may inhibit HIV-1 (July 24, 2010) -- Researchers from the U.S. and abroad used bacteria inherent to the human vaginal tract to develop a live, topical microbicide that may induce production of HIV-1 protein inhibitors and ultimately prevent transmission of the virus. ... > full story

Virtual reality gives insight on protein structures (July 24, 2010) -- To understand a protein, it helps to get inside of it, and a professor has now figured out a way to do so. A new computer software program and projection system lets a person look at larger-than-life, 3-D structures of proteins in virtual reality. This allows scientists to walk inside, through or around the protein of interest for investigating its structure and function. ... > full story

Chokeberry extract found to regulate weight gain, blood glucose, and inflammation in rats (July 24, 2010) -- A new study finds that chokeberry extract inhibits weight gain in insulin-resistant animals and modulates multiple genes associated with adipose tissue growth, blood glucose regulation, and inflammatory pathways. ... > full story

Asia's most devastating droughts reconstructed (July 24, 2010) -- Asia's monsoon rains feed nearly half the world's population. A new study of tree rings provides a detailed record of at least four epic failures of the monsoon that have shaken Asia over the last thousand years. The study is expected not only to help historians understand how environment has affected the past, but to aid scientists trying to understand the potential for large-scale disruptions in the face of changing climate. ... > full story

Cold-blooded mothers: Magpie parents seem to induce mortality of 'unwanted' chicks (July 24, 2010) -- A new pattern of nestling mortality was found in magpies' nests. Sons died more in the nests with more daughters and daughters died more in the nests with more sons. Researchers think that this pattern, that reinforces the original bias in brood sex composition, implies parental strategies being set as a "package," where specific initial sex composition of a brood is correlated with a specific parental "attitude" towards sons and daughters. ... > full story

NASA spacecraft camera yields most accurate Mars map (July 24, 2010) -- A camera aboard NASA's Mars Odyssey spacecraft has helped develop the most accurate global Martian map ever. Researchers and the public can access the map via several websites and explore and survey the entire surface of the Red Planet. ... > full story

Stem cells from surgery leftovers could repair damaged hearts (July 24, 2010) -- Scientists have for the first time succeeded in extracting vital stem cells from sections of vein removed for heart bypass surgery. ... > full story

Charging up electric car batteries in environmentally-friendly way (July 24, 2010) -- Electromobility makes sense only if car batteries are charged using electricity from renewable energy sources. But the supply of green electricity is not always adequate. An intelligent charging station can help, by adapting the recharging times to suit energy supply and network capacity. ... > full story

Diabetes monitoring device benefits not just people but dogs and other animals, too (July 24, 2010) -- A researcher is using a continuous glucose monitoring device -- commonly used in humans with diabetes -- to help treat dogs and other animals. The device, which provides a detailed glucose picture of an animal over several days, will help pet owners manage their pets' diabetes. ... > full story

Hops helps reduce ammonia produced by cattle (July 24, 2010) -- An agricultural scientist may have found a way to cut the amount of ammonia produced by cattle, using a key ingredient of the brewer's art: hops. ... > full story

Academic language impedes students' ability to learn science, expert argues (July 24, 2010) -- Middle and high school students who read fluently in English class and on the Web may find that they cannot understand their science texts. And their science teachers may be ill-prepared to guide them in reading the academic language in which science information is presented. A professor of education and expert on language and literacy development makes the case that students need to be taught academic language to learn science and other subjects. ... > full story


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