Volunteers received vaccinations over a period of six months and were tested for H.I.V.

VOA: special.2009.09.30

So,to get a sense of what the regional moisture patterns have been, dryness and wetness over such a long period of time in great detail, I would call it a kind of victory for paleoclimate science."

VOA: special.2010.05.25

It doesn't mean it's going to be easy. But,I think it can be over the period of time that we're talking about."

VOA: standard.2010.07.22

"So I think we need to brace ourselves for a new period." Analysts say the once political and militarily strategic alliance between Turkey and Israel was the most powerful alliance in the region.

VOA: standard.2009.10.27

"I do not think a prolonged period of uncertainty is a good thing, that is why I want to arrive at a decision, we want to arrive at decision, as soon as possible."

VOA: standard.2010.05.10