• They found that a city with only white rooftops could reduce the urban heat effect by thirty-three percent.

    VOA: special.2010.03.02

  • A new study has found the strongest evidence yet that smoke-free laws can reduce a major effect of tobacco smoking - heart disease.

    VOA: special.2009.01.07

  • New Wal-Mart stores have had a big effect on small communities in the United States.

    VOA: special.2009.07.17

  • Online music stores and file-sharing have had a big effect on record sales.

    VOA: special.2009.04.03

  • So each eye sees a slightly different image, producing the 3-D effect.

    VOA: special.2010.01.26

  • The effect of a disease - or a condition like obesity - can be tallied by a measure called quality-adjusted life years lost.

    VOA: standard.2010.08.10

  • (Test) The U.N.Secretary-General says he is "optimistic" a climate-change agreement can be reached in Copenhagen that will include specific recommendations on key elements that will take effect immediately.

    VOA: standard.2009.12.09

  • Tuberculosis is a common side-effect of HIV infection.

    VOA: standard.2010.07.21

  • What remains to be seen is whether this will have a long-term effect,positive effect on the security forces, and maybe are there ways we can replicate some of these treatment programs to be more inclusive of the general public."

    VOA: standard.2010.06.23

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