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'I'm a Doctor, Not a Physicist!'

Always wanted a tricorder? The X Prize Foundation is kicking off a new contest, and this one is to encourage the development of a mobile diagnostic device, reports Katharine Gammon at MIT's Technology Review. While the details of the $10 million Tricorder X Prize are still being hashed out, Gammon says "the goal is likely to be a device that can perform a number of diagnostic tests and combine these with artificial intelligence to determine whether a subject has a particular malady." The contest is to be launched in 2012, though Eric Topol at the Scripps Translational Science Institute tells Gammon that the prize won't be won until a number of technologies, including sequencing and imaging, come together.

The Scan

Pig Organ Transplants Considered

The Wall Street Journal reports that the US Food and Drug Administration may soon allow clinical trials that involve transplanting pig organs into humans.

'Poo-Bank' Proposal

Harvard Medical School researchers suggest people should bank stool samples when they are young to transplant when they later develop age-related diseases.

Spurred to Develop Again

New Scientist reports that researchers may have uncovered why about 60 percent of in vitro fertilization embryos stop developing.

Science Papers Examine Breast Milk Cell Populations, Cerebral Cortex Cellular Diversity, Micronesia Population History

In Science this week: unique cell populations found within breast milk, 100 transcriptionally distinct cell populations uncovered in the cerebral cortex, and more.