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Fresh Hurdle for Stem Cell Hunt

from BBC News Online

A Nobel Prize-winning scientist says it could be tougher than first thought to harness the healing power of stem cells in medicine.

It had been hoped a single "master" cell could potentially be used to repair all damage in a single organ. Professor Mario Capecchi, from the University of Utah, found surprising clues that different stem cells might be working together in the same organ.

This means experimental treatments relying on the wrong type might fail. Professor Capecchi, writing in the Nature Genetics, said the finding suggested stem cell biology could be "more complicated" than previously thought, which could be bad news for patients hoping for the swift arrival of new therapies.

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VIDEO: The Promise and Peril of Drones

CummingsDrones

The automation of tasks at work and at home is just around the corner, including driving cars, piloting planes, delivering packages, and transporting weapons. Unmanned aerial vehicles are rapidly evolving to meet both society’s and the military’s needs in automation and better efficiency.
During her time as one of the first female fighter pilots in the US Navy, Dr. Missy Cummings observed that computers could take off and land a plane more precisely than humans. Because of this breakthrough and her fascination with this growing technology, she began human–drone interaction research.

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