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Getting by in a Game without Winners

By | April 11, 2005

A time-honored tradition for choosing teams, riding shotgun, and settling other childish disputes, the game called rock-paper-scissors has been around far longer than humans have been playing it.

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Speciation's Defining Moment

By | April 11, 2005

Evolutionary biologists, both theoreticians and empiricists, have argued for decades about the relative merits of two speciation scenarios: allopatry and sympatry.

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An On/Off Switch for Drug Design

By | March 28, 2005

In theory, aptamers can specifically bind and modulate the activity of any protein for which they're designed.

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Lessons in Senescence

By | March 28, 2005

nouement: suicide or cancer.

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Artificial Intelligence Marches Forward

By | March 14, 2005

Rodney Brooks has what seems like modest career goals: to achieve the manual dexterity of a 6-year-old and the object-recognition skills of a toddler.

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Looking at Variation in Numbers

By | March 14, 2005

The massive efforts to systematically find and catalog single nucleotide polymorphisms (SNPs) bear witness to the conviction that small genomic changes may provide clues to the origins of such things as heart problems, obesity, and pharmacologic responses.

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Beating the Clock for a Better Understanding of Metabolism

By | February 28, 2005

Timing is everything, even with regard to metabolism.

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Homo floresiensis

By | February 28, 2005

Paleoanthropology is among the most quarrelsome of fields, so it is no surprise that researchers have gone to war over the remarkable bones discovered in a Liang Bua cave on the Indonesian island of Flores in 2003.

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Synthetic Peptides Spur Apoptosis

By | February 28, 2005

Peptide mimetics are becoming increasingly popular pipeline leads for pro-apoptotic cancer drugs.

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Love is Like an Addiction

By | February 14, 2005

Neuroscientists today are peering into the brain to understand the drive of romantic love, and they are finding evidence backing the 19th-century philosopher's observation: Love has a striking neural kinship with drug addiction.

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