To do that, Costello's co-lead researcher took samples of bacteria from mothers and babies immediately before and after birth.

VOA: standard.2010.06.30

Samples of dung will also be gathered, photographs taken, and acoustic instruments will record the animals' distinctive calls.

VOA: standard.2010.01.05

Following the study, Puerto Ricans from across the island and many living on the mainland had their DNA tested by submitting samples of their saliva.

VOA: standard.2010.04.05

Mayor Fraser was handing out samples of smoked salmon.

VOA: standard.2010.02.23

They gathered hundreds of sea creatures and water samples to measure the garbage patch's effect on ocean environment.

VOA: special.2009.09.22

The team found levels of lead as high as thirty-two thousand parts per million in tests on some paint samples from Ecuador.

VOA: special.2009.08.31

They also will study chemical and physical properties of the soil samples with a method called infrared spectroscopy.

VOA: special.2009.01.20

The chip removed ninety-nine percent of the salt and other harmful substances from water samples.

VOA: special.2010.04.05

"A lot of British Colombia is known for that. We're giving away smoked salmon, oysters samples, all sorts of artisan foods and cheeses.

VOA: standard.2010.02.23

The research team used what are called core samples from hundreds of trees throughout Southeast Asia.

VOA: standard.2010.04.05

One of those scientists. Kim Cecil,from the University of Cincinnati She was part of a team of researchers who took annual blood samples from several hundred lead-exposed children for more than 20 years.

VOA: standard.2009.12.19