They found the highest levels of solar activity cause small, but far-reaching effects on weather systems around the world.

VOA: special.2009.09.29

But since last year there has been little activity in the seven hundred fifty billion dollar market for commercial mortgage securities.

VOA: special.2009.09.04

But it seemed that teenage physical activity was particularly important in terms of the prevention of cognitive impairments."

VOA: special.2010.07.07

But cement manufacturing produces around five percent of the carbon dioxide released by human activity worldwide.

VOA: special.2009.12.01

Or,they say the Earth may be warming, but human activity is not responsible.

VOA: special.2010.01.19

But after conservatives objected, the activity was changed to writing about personal goals.

VOA: special.2009.09.10

And,it says there are two separate, but equally important kinds of physical activity.

VOA: special.2010.06.08

But his physical activity was very limited.

VOA: special.2010.02.07

We've been working to make our schools healthier. We've been working to increase the amount of physical activity that our kids are getting, not just during the day at school but also at home.

VOA: special.2010.06.07

Officials initially blamed "insurgent activity" for the casualties, but later said it was possible the soldiers were hit by friendly fire.

VOA: standard.2009.11.07

But this is a select group of people that can handle or process or engage in these types of activity."

VOA: standard.2010.07.23

This activity is no charity but a viable business, servicing people who do not have access to electricity.

VOA: standard.2010.02.24

But,we also have a situation where large numbers of children are arrested and detained in the counter-terrorism activity,".

VOA: standard.2009.09.16

"We have 33 company members. We're from different schools but we just meet on Saturdays from 4:30 to 6:30, it's an after school activity,"

VOA: standard.2009.12.04

It took several years of further experiments and analysis, but During and his colleagues ultimately concluded that the mild stress of all that activity and interaction activated a communication channel that prompts fat cells to stop releasing a hormone called leptin, which accelerates cancer growth.

VOA: standard.2010.07.14