Archive: 11/23/2009

Do kids benefit from homework?

(PhysOrg.com) -- Homework is as old as school itself. Yet the practice is controversial as people debate the benefits or consider the shortcomings and hassles. Research into the topic is often contradictory ...

Nov 23, 2009 3.8 / 5 (29) 3

A mechanical model of vocalization

When people speak, sing, or shout, they produce sound by pushing air over their vocal folds -- bits of muscle and tissue that manipulate the air flow and vibrate within it. When someone has polyps or some other problem with ...

Nov 23, 2009 not rated yet 1

Tissue tension regulates tumor progression

(PhysOrg.com) -- UCSF scientists have shown for the first time that the rigidity of a tissue can induce cancer. The research team identified an enzyme that is crucial for regulating tissue stiffness and demonstrated that ...

Nov 23, 2009 not rated yet 0