Lyrica causes side-effects in some patients, including problems with mental concentration and attention.

VOA: special.2011.08.02

"There was a lower concentration of dopamine markers in the brain of individuals with A.D.H.D., specifically in the areas of the brain that are involved with reward and motivation."

VOA: special.2009.09.29

She played a survivor of a Nazi concentration camp.

VOA: special.2009.05.29

The new technology is called ion concentration polarization.

VOA: special.2010.04.05

Expect the unexpected. And learn concentration.

VOA: special.2011.05.16

They were then sent to an internment camp in central France before being shipped east to Nazi concentration camps.

VOA: standard.2010.04.10

Christiano Ronaldo, who plays for Portugal and Spanish football club Real Madrid says the noise disturbs the players' concentration.

VOA: standard.2010.06.14

While they were in the brain-scanning machine, they were asked to do tasks that required concentration and attention.

VOA: standard.2009.12.19

In fact,Cape May now boasts the single greatest concentration of late-19th Century architecture in the world!

VOA: standard.2010.03.15

Now,he thinks short is better. "I've gotten researchers telling me that you don't realize is how long someone can have a high level of concentration.

VOA: standard.2010.03.26

But Muller's mother was shipped to the Auschwitz concentration camp and never heard from again.

VOA: standard.2010.04.10

The tensions with former Soviet satellite states has saddened Soviet veterans, including Yakov Vinnichenko, who told Russia Today television he was involved in liberating concentration camps.

VOA: standard.2009.09.01

"There has been a real concentration in those three states of intertribal trouble.

VOA: standard.2010.03.23

"The Nobel Prize in literature for 2009 is awarded to the German author Herta Mueller, who with the concentration of poetry and the frankness of prose depicts the landscape of the dispossessed,"

VOA: standard.2009.10.08