Jessica Adams formerly worked at the Planet Hollywood casino and resort. Now she teaches fourth grade at Robert Forbuss Elementary School. Eric Westervelt/NPR hide caption

itoggle caption Eric Westervelt/NPR

NPR Ed

Las Vegas: Betting On New Teachers But Coming Up Short

The crowded and fast-growing district is facing a severe teacher shortage.

Dalma Cartagena teaches a class on agricultural science to elementary-school students in Orocovis, Puerto Rico. "I'm preparing them to make good decisions when it comes to the environment and healthy foods," she says. Greg Allen/NPR hide caption

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The Salt

Puerto Rico Is Sowing A New Generation Of Small Farmers

Decades of industrialization have left the island reliant on imported food. But change is coming — from government subsidies for small farmers, to classes that teach school kids how to grow food.

The posterior end of the Loa loa worm is visible on the left. The disease-causing worm can now be located with a smartphone/microscope hookup. That's a big help because a drug to treat river blindness can be risky if the patient is carrying the worm. BSIP/UIG via Getty Images hide caption

itoggle caption BSIP/UIG via Getty Images

Goats and Soda

Smartphones Can Be Smart Enough To Find A Parasitic Worm

If someone is infected by the Loa loa worm, taking a drug to treat river blindness could be risky. Now there's a fast way to identify the worm — by turning a smartphone into a microscope.

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Dalma Cartagena teaches a class on agricultural science to elementary-school students in Orocovis, Puerto Rico. "I'm preparing them to make good decisions when it comes to the environment and healthy foods," she says. Greg Allen/NPR hide caption

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The posterior end of the Loa loa worm is visible on the left. The disease-causing worm can now be located with a smartphone/microscope hookup. That's a big help because a drug to treat river blindness can be risky if the patient is carrying the worm. BSIP/UIG via Getty Images hide caption

itoggle caption BSIP/UIG via Getty Images
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Registered nurses Cassie Gregor (from left), Camellia Douglas and Mike Montalto monitor patients in intensive care units scattered around North Carolina. Kevin McCarthy/Carolinas HealthCare System hide caption

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Oil pump jacks in Williston, N.D., in December. Oil prices have been on the rise, but some analysts say the global economic slowdown, fracking and the rise of alternative energy will mean less demand and lower prices. Eric Gay/AP hide caption

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Loki's Castle, the field of deep sea vents between Norway and Greenland, is home to sediments containing DNA from the newly discovered archaea. R.B. Pedersen/Centre for Geobiology, Bergen, Norway hide caption

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