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

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

VOA: special.2010.04.07

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

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

VOA: special.2009.06.20

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

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

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

VOA: special.2009.06.07

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

In other words, my experience I think predisposed me to being interested in the kind of phenomena that people in these extreme and unusual environments encounter. With Shackletons experience in mind, John Geiger started to investigate whether other people facing death or extreme fear had faced similar situations.

VOA: special.2010.02.24

Morrell says Gates gave his condolences on the bombings, and offered any needed U.S.help to investigate them and to improve security.

VOA: standard.2009.12.11

In February, the government of Pakistan asked U.N.Secretary-General Ban Ki-moon to establish an international commission to investigate Mrs.Bhutto's assassination.

VOA: standard.2009.06.21

The Nigerian government ordered security agencies to investigate the incident and said they would cooperate fully with the American authorities.

VOA: standard.2009.12.28

They are calling on the international community to investigate what they say were voting irregularities, including counting opposition ballots for Aziz.

VOA: standard.2009.07.19

Mr.Aquino says he will immediately form an independent commission to investigate corruption allegations against Ms.Arroyo and other scandals under her term.

VOA: standard.2010.06.30