So energy expert Eric Potter says it is too early to know how the new gas shale reserves will affect the market.

VOA: special.2009.10.23

The findings made it possible to better study pain drugs and learn how they affect the body.

VOA: special.2009.02.10

A new study used a computer model to predict how just three grams less a day would affect heart disease in the United States.

VOA: special.2010.01.27

The scientists used a computer model to predict how just three grams less salt a day would affect heart disease in the United States.

VOA: special.2010.03.03

The kinds of minerals in clay affect how soft or hard it is to work with.

VOA: special.2009.09.09

"And,it is very important that the United States deal with the military, know who they are, know the individuals, and then be able to appraise how we might affect change."

VOA: standard.2009.11.02