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The Court of Arbitration for Sport has confirmed that it has begun proceedings against Russian curler Aleksandr Krushelnitckii, who won a bronze medal in curling as part of the Olympic Athletes from Russia team at the Pyeongchang Winter Olympics.

Krushelnitckii finished third in the mixed-doubles curling tournament, competing with his wife and teammate, Anastasia Bryzgalova.

Copyright 2018 NPR. To see more, visit http://www.npr.org/.

Copyright 2018 NPR. To see more, visit http://www.npr.org/.

Food scientists at the University of Massachussetts Amherst have come up with a technique they say could make it a lot easier to avoid food poisoning.

The main piece of equipment? Your smartphone.

Currently, to identify the bacteria that can get you sick, like E. coli or salmonella, food scientists often use DNA testing.

They obtain samples from, say, raw spinach or chicken skin, by rinsing the food and collecting a tiny bit of bacteria from the water. Then they let that bacteria multiply over 24 hours to get a big enough sample.

Smaller than the head of a pin, the microTUM tumbles end over end through bumpy, steep and wet topography to reach its final destination. Purdue University researchers hope the microscale magnetic tumbling robot they've designed will eventually be able to deliver drugs to a specific location in the human body.

One of the most enduring questions in science is how did we become human. Fossil bones of our ancestors tell part of the story. But researchers at Kent State University have discovered another piece of the puzzle by comparing the brains of humans with other primates.

In this week’s Exploradio, WKSU’s Jeff St.Clair looks at the neurochemical changes in our distant past that became the turning point in human evolution.

Four men who were born in southwest Ohio went on to serve as President of the United States. They're remembered each Presidents' Day.

Copyright 2018 NPR. To see more, visit http://www.npr.org/.

Margery Simkin is a casting director. Her job is to look at thousands of faces, and her gut reaction — how she feels about what she sees — can lead to movie and TV roles.

But for this story, she isn't looking at a headshot — she's looking at a painting. "This wouldn't be somebody that could be a bad guy," she says. "There's a softness. There's a kindness in his eyes."

Each year, about 31,000 men and women in the U.S. are diagnosed with a cancer caused by an infection from the human papillomavirus, or HPV. It's the most common sexually transmitted virus and infection in the U.S.

In women, HPV infection can lead to cervical cancer, which leads to about 4,000 deaths per year. In men, it can cause penile cancer. HPV also causes some cases of oral cancer, cancer of the anus and genital warts.

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