And it provides a guide to higher education in the United States, including explanations of commonly used terms.

VOA: special.2010.02.11

Doctor Soerheim says there are several possible explanations why women may be more at risk from the effects of cigarette smoke than men.

VOA: special.2009.06.23

According to Sahin, scientists have known for some time that conventional explanations for how parts of the brain work need to be revised.

VOA: standard.2010.01.15

"And I think you see it also in his explanations of things.

VOA: standard.2010.01.16