American researchers used a national long-term survey of adolescent health to investigate the link between media use and depression.

VOA: special.2009.03.10

Also,the broken windows theory did not fully investigate the exact conditions of disorders that appeared to lead to crime.

VOA: special.2009.03.03

Politicians urged President Lincoln to investigate the anti-war protests in New York to learn who had led them.

VOA: special.2009.10.29

European Union officials say they will form a team of experts to investigate non-Islamist threats in Scandinavian countries.

VOA: special.2011.07.30

La Brea scientists had a chance to investigate an area that otherwise would have been impossible to study.

VOA: special.2010.04.07

Iran's Guardian Council which supervises elections has offered to recount some votes and investigate complaints of wrongdoing.

VOA: special.2009.06.20

China,in turn,said this week that it will investigate imports of American chicken products and auto parts.

VOA: special.2009.09.18

She then travels to Brazil to investigate his death and learn more about Dr. Swenson's findings.

VOA: special.2011.07.13

"Well." said Andy, after thinking it over, "it might be better, if the United States Post Office should decide to investigate our marriage agency.

VOA: special.2010.04.24

The researchers advise growers to investigate the effects of thinning or pruning to reduce the number of fruit in early summer of the on-crop year.

VOA: special.2009.11.10

Ray LaHood says his department will investigate the electronics used by Toyota and other automakers.

VOA: special.2010.02.26

Later,it was discovered that President Johnson had immediately ordered government agents to investigate the performer.

VOA: special.2009.06.07

Officials say they will also investigate whether warning signs about Major Hasan's behavior were ignored.

VOA: special.2009.11.14

He was ready to investigate. But a great storm damaged some equipment on his ships.

VOA: special.2009.08.17

They rejected a proposal to investigate the way the votes were counted in the state.

VOA: special.2010.03.04

A committee headed by radicals was named to investigate Klan activities in the south.

VOA: special.2010.02.18

Doctor Ruhli used CT scans to investigate the cause of King Tut's death.

VOA: special.2010.06.29

In the nineteen forties, professional archeologists started to investigate the island.

VOA: special.2009.08.17

After watching "Roots." many Americans wanted to investigate their own roots.

VOA: special.2010.06.28

Parliament appointed a fourteen-member committee to investigate the case.

VOA: special.2010.04.27

A small force of American soldiers went to investigate.

VOA: special.2009.02.26