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Study: Researchers Crack the Mystery of AIDS�Immunity – TIME Healthland

Image via WikipediaStudy: Researchers Crack the Mystery of AIDS�Immunity – TIME Healthland: "Bruce Walker, an AIDS researcher at Harvard University and Massachusetts General Hospital, has long been trying to understand why some people with HIV can remain untreated for decades and never progress to AIDS. On Nov. 4, Walker and colleagues published research that helps explain these HIV controllers: genetic variations that change key proteins in their immune systems."

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• Genetic Secret to AIDS Immunity Found (technologyreview.com)

Archaeologists Discover World's Oldest Axe - Science News - redOrbit

Archaeologists Discover World's Oldest Axe - Science News - redOrbit: "An international team of archaeologists, led by Bruno David of Australia's Monash University, have uncovered a 35,500 year-old stone axe--the oldest tool of its kind ever discovered."

Related articles

• 35,000-year-old axe head places Aboriginal ancestors at the cutting edge of technology (theage.com.au)

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Creating Roads From Sand and Bacteria Instead of Oil | Inhabitat - Green Design Will Save the World

Creating Roads From Sand and Bacteria Instead of Oil | Inhabitat - Green Design Will Save the World: "Improving America’s infrastructure has been a major priority for the Obama Administration, with a lot of money going into repairing the country’s roads and bridges. The problem is that currently most roads are constructed from asphalt, a material made from oil that increases national fossil fuel usage, is expensive, and is damaging to the environment. However designers Thomas Kosbau and Andrew Wetzler have come with a plan for a greener alternative — a “biologically treated and processed paving material” that uses a common microbe to transform loose grains of stand into stable, road-worthy sandstone."

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