Jared Loughner withdrew from a local community college after being suspended last September because of fears about his behavior.

VOA: special.2011.01.15

"Dopamine is considered a neurotransmitter that is crucial for our ability to perceive rewards and to be motivated in our behavior."

VOA: special.2009.09.16

The students developed a device for cars to collect information on road conditions, driving behavior and traffic incidents.

VOA: special.2011.07.18

To carry out the experiment, a team led by Kees Keizer set up several situations in public areas to test people's behavior.

VOA: special.2009.03.03

Scientists agree that musical instruments are a sign of fully modern behavior and a complex form of communication.

VOA: special.2009.08.18

That can have a big effect on their behavior, helping them work harder and longer in therapy sessions.

VOA: special.2009.12.17

The behavior of a fishing boat is mainly the responsibility of the nation whose flag it flies.

VOA: special.2009.12.08

The scientists on Antarctica know better than anyone about the effects of pollution and human behavior on this important treasure of a continent.

VOA: special.2009.06.03

Their question is part of a model used by experimental economists to explain social and individual behavior.

VOA: special.2009.03.03

We could get into a situation here of a moral hazard by rewarding bad behavior.

VOA: special.2009.08.08

It's a real piece about human behavior." Mary Surratt was a businesswoman in the eighteen-sixties.

VOA: special.2011.04.15

The Justice Department says domestic violence can be defined as a pattern of abusive behavior used by one partner in any relationship to control another partner.

VOA: special.2009.02.28

It can decrease intelligence, create behavior problems and slow a child's growth.

VOA: special.2009.08.31

Her behavior seems only a little strange at first.

VOA: special.2009.06.12