At the time, she was searching for a way to make a material strong enough to use on automobile tires.

VOA: special.2010.02.09

In March, President Obama ended restrictions on the use of federal money for research using human embryonic stem cells.

VOA: special.2009.04.07

Last year,President Obama ended restrictions on the use of federal money for studies of human embryonic stem cells.

VOA: special.2010.11.02

This makes it more difficult for the body to effectively use the same amount of oxygen as it would on the ground.

VOA: special.2009.07.14

The new administration says it will hold banks responsible for how they use taxpayers' money, and will report details on a Web site.

VOA: special.2009.02.13

"And half of the people on planet Earth every day use wood or biomass for cooking.

VOA: special.2010.02.01

On Mars Day, hundreds of people waited for their chance to use robot technology.

VOA: special.2010.07.28

Scott Baldridge, an expert on this approach. Baldridge has designed a training program for elementary school math teachers who want to use it.

VOA: standard.2010.08.10

He saved $2 on transportation which he says he can now use for medicines.

VOA: standard.2010.05.25

The two sides did not make any additional comments regarding requests from Chinese officials for Washington to put an end to curbs on "dual use" high-tech exports that have possible military applications.

VOA: standard.2010.05.25

Senior manager Tshepo Ramodibe said the group hopes to use the upcoming football World Cup, being played for the first time on African soil, to broaden awareness of the disease and the way it can be prevented and treated.

VOA: standard.2010.04.23

Experts say accountability is key in determining the future use of certain practices such as confining thousands of protesters into small areas for hours on end and of some officers removing badge numbers from their uniforms in crowd control situations.

VOA: standard.2009.04.21

Pelosi has faced opposition from fiscally-conservative Democrats still nervous about the longer-term cost of the legislation,and opposition from some her in party who assert that language in the measure does not go far enough to ensure a continuing ban on the use of federal funds for abortion.

VOA: standard.2010.03.19