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Slippery When Coated: Helping Medical Devices Resist Blood Clots

When blood flows over an artificial surface, whether it's an implanted pacemaker or tubing for a dialysis machine, there's an increased risk that a dangerous clot will form.
NPR

American Intruder Lurks In Scottish Streams, Clawed And Hungry

Scotland has some of the best trout fishing in the world. Now the North American signal crayfish is taking over waterways, threatening to wipe out native populations of insects those trout eat.
NPR

Emotions Linger After Forgotten Events In Alzheimer's Patients

A new study suggests that people with Alzheimer's can hold on to happy or sad feelings, even if they forget what triggered them. NPR's Ari Shapiro speaks with the study's author, Edmarie Guzman-Velez.
NPR

The Tricky Nature Of Putting Science On Trial

The appeal for seven Italian scientists convicted of manslaughter after downplaying the possibility of an imminent earthquake has began. NPR's Arun Rath speaks with reporter David Wolman about the trial.
NPR

Lawmakers Grill Dallas Health Officials On Ebola Response

The WHO says the Ebola virus has claimed more than 4,000 lives. In Dallas on Friday, members of Congress pressed public health officials on their handling of the first Ebola case diagnosed in the U.S.
NPR

Despite New Sources, Europe Still Relies On Russian Oil

Suma Chakrabarti, president of the European Bank for Reconstruction and Development, tells NPR's Scott Simon about efforts to reduce Europe's energy dependence on Russia.
NPR

Researchers Say Beavers Are More Than Simple Pests

Most people think of beavers as pests — they cause floods and block irrigation. But as Mel Babik tells NPR's Scott Simon, she's finding a new use for the buck-toothed critters in the Yakima Basin.
NPR

SXSW Eco, Hub Of Environmental And Foodie Fervor

Like its parent music, film and interactive festival, this conference is all about networking, which means parties. The young crowd takes full advantage of Austin's food trucks and bars.
NPR

Answering Your Questions About Ebola Treatments And Vaccines

We answer listeners' questions about treatments and possible vaccines for Ebola.
NPR

A Liberian Doctor Comes Up With His Own Ebola Regimen

At a government-run hospital in Liberia, Dr. Gabriel Logan is doing everything he can to save Ebola patients. That includes experimenting with an HIV drug as treatment.

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