06/10/2008

In quantum channels, zero plus zero can equal non-zero

(PhysOrg.com) -- Physicists have discovered a strange characteristic of quantum communication channels. If two quantum channels each have a transmission capacity of zero, they may still have a nonzero capacity when used together. ...

Researchers document world's mammals in crisis

From majestic African elephants to tiny and often unappreciated rodents, mammals on Earth are in a state of crisis. One in four mammal species on Earth is being pushed to extinction, according to the Global Mammal Assessment, ...

Playing Pinball with Atoms

With nanotechnology yielding a burgeoning menagerie of microscopic pumps, motors, and other machines for potential use in medicine and industry, here is one good question: How will humans turn those devices on and off?

Metastatic movements in 3-D

Caswell et al.report in the Journal of Cell Biology how the altered behavior of integrins can prompt metastatic movement in tumor cells.

Visualizing election polls

Do you want to know the percentage of white women who support vice presidential candidate Sarah Palin? What about college-educated versus high school-educated white women? Or those who also hunt?

page 3 from 3