But in a recent study they declared that forty percent of the tweets captured over a two-week period were "pointless babble."

VOA: special.2009.09.14

The exact cause is unknown. But in a recent study, an experimental drug showed signs of halting the disorder in laboratory mice.

VOA: special.2010.05.19

Gemini Six followed Gemini Seven, but in a lower orbit that moved the two spacecraft closer together.

VOA: special.2009.07.01

Others who want to graduate in three years must pay for the same education as four-year students, but in a shorter period of time.

VOA: special.2009.07.23

But in a country that was suffering a major recession, this kind of work was a good way for unemployed people to make money.

VOA: special.2009.03.25

"We have Valentine's Day but in a different day.

VOA: special.2010.02.08

Now Pittsburgh is hot,but in a good way.

VOA: special.2009.07.13

But in a sign the United States is not focusing solely on the Palestinian issue, Mitchell began his mission in Damascus.

VOA: standard.2009.07.26

But in a small,short person, Skinner says,just 3 kilograms can make the difference between a healthy weight and obesity.

VOA: standard.2010.03.09

But in a few months, the rains will come and camp residents worry about their tents many made of bed sheets.

VOA: standard.2010.02.02

But in a recent BBC poll, two-fifths of those questioned said they did not even know why British forces are in Afghanistan.

VOA: standard.2009.11.10

But in a new study, researchers used a vaccine aimed at a different part of the virus.

VOA: standard.2010.07.21

But in a statement responding to the lawsuit, Cabot said it saw no merit in the claims.

VOA: standard.2010.01.02

But in a possible sign of progress, Mitchell will visit several Arab countries and then make an unscheduled stop in Israel on Friday for more talks.

VOA: standard.2009.09.16