The idea is to activate the remaining arm nerves to make electrical signals to operate prosthetic devices.

VOA: special.2009.03.10

But experts believe the electrical current might help activate nerve cells that are not working correctly.

VOA: special.2009.02.03

"The ability of these substances to activate pain neurons was totally dependent upon capsaicin receptor."

VOA: standard.2010.05.04

Dr.Chan said all countries should immediately activate their pandemic preparedness plans and countries should remain on high alert for unusual outbreaks of influenza-like illness and severe pneumonia.

VOA: standard.2009.04.29