Archive: 04/5/2010

For Stem Cells, Practice Makes Perfect

(PhysOrg.com) -- Multipotent stem cells have the capacity to develop into different types of cells by reprogramming their DNA to turn on different combinations of genes, a process called "differentiation." ...

Apr 05, 2010
4.8 / 5 (9) 0 | with audio podcast

Eating like a bird helps forests grow

Lions, tigers and bears top the ecological pyramid -- the diagram of the food chain that every school child knows. They eat smaller animals, feeding on energy that flows up from the base where plants convert ...

Apr 05, 2010
4.6 / 5 (9) 0 | with audio podcast

Form or function? Evolution takes different paths

Biologists long have known that both the appearance of organisms and their inner workings are shaped by evolution. But do the same genetic mechanisms underlie changes in form and function? A new study by scientists at the ...

Apr 05, 2010
4.7 / 5 (7) 3 | with audio podcast

3 Questions: David MacKay on renewable energy

David MacKay (pronounced mac-EYE), a professor of physics at the University of Cambridge, UK, was recently appointed to a three-year term as chief scientific advisor to the UK’s Department of Energy and ...

Apr 05, 2010
3 / 5 (6) 1

Researchers develop a robot that folds towels (w/ Video)

(PhysOrg.com) -- A team from Berkeley's Electrical Engineering and Computer Sciences department has figured out how to get a robot to fold previously unseen towels of different sizes. Their approach solves a key problem in ...

Apr 05, 2010
4.7 / 5 (9) 3 | with audio podcast

Tracking down rust

(PhysOrg.com) -- Damage to concrete bridges caused by rust can have fatal consequences, at worst leading to a total collapse. Now, researchers have developed an early-warning system for rust. Sensor-transponders ...

Apr 05, 2010
4 / 5 (1) 0

Multiple sclerosis drug has clinical benefits

A drug whose clinical benefit in treating multiple sclerosis was discovered at Rush University Medical Center was approved by the Food and Drug Administration on January 22 and is now available in the U.S.

Apr 05, 2010
4.8 / 5 (4) 2

Viral life cycle of malignant catarrhal fever explained

The mysterious life cycle of a sheep virus that causes malignant catarrhal fever (MCF) has been discovered by Agricultural Research Service (ARS) scientists and their university collaborators—the first step in developing ...

Apr 05, 2010
3 / 5 (1) 1