The decrease in the amount of dopamine can result in one or more of the general signs of Parkinson's.

VOA: special.2009.02.03

Over the years,researchers have identified several substances in the blood that can serve as what they call cardiac biomarkers.

VOA: special.2009.07.15

Professor Bartemeus says the study shows how human activities in the natural environment can change the travels of other organisms.

VOA: special.2010.03.02

The players have to find all the marketing in the neighborhood before they can move on to the next level.

VOA: special.2010.06.04

By using video technology, educators and performers at the center in Atlanta,Georgia can connect with classrooms around the country.

VOA: special.2009.09.23

There are rules that restrict the kinds of jobs that foreign students can have while studying in the United States.

VOA: special.2009.01.15

He says the bacteria can also float around in the air and be easily pulled into the lungs.

VOA: special.2009.10.13

Senem Bakar says students learn that in the United States you can find almost everything on sale somewhere.

VOA: special.2009.05.21

At the same time, doctors warn that acid in aspirin can cause bleeding in the stomach and intestines.

VOA: special.2009.10.20

The mutations in these genes can increase the risk for other kinds of cancer, including cancer of the cervix, uterus and pancreas.

VOA: special.2010.09.22

The Obama administration says the earlier those in trouble can get help, the more chance for long-term success.

VOA: special.2009.02.20

The Cleveland Clinic in Ohio says the cluster headache can be many times more intense than a migraine.

VOA: special.2010.03.30

Even a small reduction in salt in the diet can be a big help to the heart.

VOA: special.2010.01.27

Word expert James Rogers says the word "it" in the saying can mean any and all difficulties.

VOA: special.2010.11.21