Archive: 11/23/2009

Measuring and modeling blood flow in malaria

When people have malaria, they are infected with Plasmodium parasites, which enter the body from the saliva of a mosquito, infect cells in the liver, and then spread to red blood cells. Inside the blood cells, the parasites ...

Nov 23, 2009
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Grand Canyon to change 'unfair' permit system

(AP) -- Getting one of the roughly 11,500 permits granted each year to backpack overnight in the Grand Canyon has become so competitive and "unfair" that managers at the national park have decided to change the system.

Nov 23, 2009
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