New strategy directly activates cellular 'death protein'

Researchers at Dana-Farber/Children's Hospital Cancer Center have devised a strategy to directly activate a natural "death" protein, triggering the self-destruction of cells. They say the development could represent a new ...

Wal-Mart expands test of mobile checkout program

Wal-Mart Stores Inc. is expanding a test of a new checkout program that allows shoppers to scan items with their smartphones and then pay at self-checkout terminals.

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