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Science news

Why a Rocky Mountain High?

A University of Utah study shows how various regions of North America are kept afloat by heat within Earth's rocky crust, and how much of the continent would sink beneath sea level if not for heat that makes rock buoyant.
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Plants recognize their siblings, biologists discover

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The next time you venture into your garden armed with plants, consider who you place next to whom. It turns out that the docile garden plant isn't as passive as widely assumed, at least not with strangers.

Pitfalls of percentages

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Several years ago, a nurse at a Twin Cities hospital temporarily filled in for a head nurse who took a short leave. The nurse was given a 10 percent raise; when she returned to her old job, she took a 10 percent pay cut.

Columbine Flowers Develop Long Nectar Spurs in Response to Pollinators

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In flowers called columbines, evolution of the length of nectar spurs--the long tubes leading to plants' nectar--happens in a way that allows flowers to match the tongue lengths of the pollinators that drink their nectar, biologists have found.

Researchers track how spores break out

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Tapping into the unknown world of awakening dormant bacterial spores, researchers have revealed through atomic force microscopy (AFM) the alterations of spore coat and germ cell wall that accompany the transformation from a spore to a vegetative cell.

Follow the 'green' brick road?

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Researchers have found that bricks made from fly ash--fine ash particles captured as waste by coal-fired power plants--may be even safer than predicted. Instead of leaching minute amounts of mercury as some researchers had predicted, the bricks apparently do the reverse, pulling minute amounts of the toxic metal out of ambient air.

Novel sugar-to-hydrogen technology promises transportation fuel independence

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The hydrogen economy is not a futuristic concept. The U.S. Department of Energy's 2006 Advance Energy Initiative calls for competitive ethanol from plant sources by 2012 and a good selection of hydrogen-powered fuel cell vehicles by 2020.

DNA links Aborigines to African walkabout

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Researchers have produced new DNA evidence that almost certainly confirms the theory that all modern humans have a common ancestry.

WVU professor helps develop techniques to reduce threat against honeybees

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Bees swarm through the smoke as Professor James Amrine attempts to hook a pollen trap to one of the 20 beehives used for research at West Virginia University.

Climate swings have brought great CO2 pulses up from the deep sea

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A study released today provides some of the first solid evidence that warming-induced changes in ocean circulation at the end of the last Ice Age caused vast quantities of ancient carbon dioxide to belch from the deep sea into the atmosphere.

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