US officials at odds over cellphone use on planes (Update)

It looks like the U.S. government is more conflicted about cellphones on planes than most American travelers. Even as one federal agency considers allowing the calls, another now wants to make sure that doesn't happen.

Team charts new understanding of actin filament growth in cells

University of Oregon biochemists have determined how tiny synthetic molecules disrupt an important actin-related molecular machine in cells in one study and, in a second one, the crystal structure of that machine when bound ...

Breakthrough: Sensors monitor cells at work

Transport proteins are responsible for moving materials such as nutrients and metabolic products through a cell's outer membrane, which seals and protects all living cells, to the cell's interior. These transported molecules ...

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