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Do twins hold the key to AIDS puzzle?

Scientists investigate the AIDS virus with a trio of studies involving HIV-positive twins, a failed vaccine and a protein "stop sign"

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Being Overweight in Midlife Might Increase Chance of Dementia Later

Obesity and dementia have a well-established connection in the medical literature. But a new study shows that just being overweight--with a BMI of 25 or above--in middle age might also significantly increase the odds that a person develops dementia later in life. [More]

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Video: "All-Natural" labels may be deceiving

For shoppers who care about healthier eating, deciphering food labels can be like reading a foreign language...which is why some people just keep an eye out for one simple word, "natural." But as Manuel Gallegus found out, "natural" is probably not what you think.

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Nuclear waste storage a top issue for NRC

By Roberta Rampton WASHINGTON (Reuters) - The U.S. nuclear safety regulator is studying whether to require plants to more quickly move radioactive waste out of pools as part of a review on safety in the wake of Japan's nuclear disaster, its chairman said on Monday. [More]

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Will RIM Find Balance With New BlackBerry Tech?

Research in Motion tries to improve its smartphone game, following a series of dismal announcements. Research in Motion, makers of the BlackBerry, need a Hail Mary pass. Its sales are dropping; a few week ago, it put out dismal numbers

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Westwood, Watson shine

PGT's Par 3: Lee Westwood seals the No. 1 ranking with a win, and Bubba Watson vaults into the top 10.

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Boosting Solar Cell Efficiency by Minimizing Defects

A new advance in solar cells that tips the surface with minuscule cone structures could neutralize manufacturing defects, boosting efficiency up to 80 percent. In conventional solar panels, more than 50 percent of the charges generated by sunlight are lost due to defects, said Jun Xu, a researcher at the Department of Energy's Oak Ridge National Laboratory. The irregularities in the formation of the crystalline structure of solar cells can trap electrons and limit the transfer of sunlight to electrical energy.

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