They used light-sensitive molecules to turn on and off nerve cells in the deep brain structure of mice.

VOA: special.2009.04.07

So you really just need to turn off a handful of machines to have this type of disruption."

VOA: special.2011.02.21

He could turn off a light and then jump into his bed before the room got dark.

VOA: special.2009.01.24

The Northwestern University researcher took part in a study that found a way to turn off the immune system in mice with arthritis.

VOA: special.2010.03.16

For the fourth year, people are being urged to turn off their lights for one hour to call attention to the issue of climate change.

VOA: special.2010.03.22

We leave you with "Turn it Off," from the Paramore album, "Brand New Eyes."

VOA: special.2010.01.01

A signal from the TV tells each side of the glasses when to turn on and off, showing each eye slightly different images that create the sense of depth.

VOA: special.2010.01.26

"We must intensify our prevention efforts if we are to turn off the tap of new HIV and TB infections.

VOA: standard.2009.12.02

Turn it off. You are tunedto the American forces Vietnam network.

VOA: standard.other

"Someone could attack the industrial control systems that control all the valves, all the distribution systems, and are used to turn on and off various aspects involved with energy and the electrical power grid and oil and gas distribution networks,".

VOA: standard.2009.08.11