One is the mega-chain Wal-Mart. "On one hand,Wal-Mart's whole business model is based on consumption.

VOA: standard.2010.01.23

One important factor affecting the water quality is the area's temperature and rainfall, and Hunt's model is set up for the mid-Atlantic region of the United States.

VOA: standard.2010.08.04

It was not until Henry Ford's gas-powered Model T that the internal combustion engine and the car became inseparable.

VOA: special.2010.11.17

Last December, the Australia-based company Invetech reported that it had delivered the world's first production model 3-D bio-printer for Organovo.

VOA: special.2010.10.19

"Yay Exercise!" "If you want your child to have healthy habits, practice healthy habits too because you're your child's best role model."

VOA: special.2009.11.27

But if the plan succeeds, it could serve as a model for America's biggest carmaker,General Motors.

VOA: special.2009.05.01

The researchers used a computer model that predicted the effects of the suns heat.

VOA: special.2010.03.02

Melvin has been an astronaut for 10 years. He says he's trying to be a role model to young African-Americans.

VOA: standard.2010.02.02

"And,what you see is a new economy breaking through what's breaking down: that heavy,industrialized, over-ambitious,over-productive, over-consumptive model, which is actually going to completely destroy our chancesof survival in the future.

VOA: standard.2010.02.24

While many developing-world communities might not be ready for Hunt's runoff management model, Urbonas believes it is important for them to be aware of the pollutants present in stormwater even as they learn to manage their community's waste water.

VOA: standard.2010.08.04