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"A Cascadic Multigrid Algorithm for Computing the Fiedler Vector of Graph Laplacians" was published in the Journal of Computational Mathematics. It's not Urschel's first paper.

The ACLU has fought for years for the release of photos documenting abuse in prisons like Abu Ghraib. The government argues releasing the photos would pose a threat to American military.

Keith O'Brien, who stepped down as Archbishop of St. Andrews in Scotland two years ago, will be stripped of his privileges but not his title, the Vatican says.

A German-Syrian religious studies teacher was shocked when she heard that five of her former students had left Germany to join jihadist groups in Syria. "It felt like a personal defeat," she says.

That's what a patient in Russia said a few years ago. In fact, 1.5 million people do die of the airborne infection each year. Here's what the world needs to do to fight this generally curable scourge.

U.S. defense and intelligence officials tell NPR that the list appears to have been derived from publicly available sources and not a breach of a government server.

New studies show how much a country loses if it discriminates. Not only would the women themselves benefit — to the tune of $9 trillion in developing countries alone — the national economy would, too.

The head of the country's meteorological administration says it faces climate disasters and ecological degradation resulting from a warming planet.

During more than a half-century as the city-state's leader, Lee helped turn the sleepy British colony into an affluent trading enclave. But he ruled with an iron fist and muzzled critics and rivals.

Some see the move as a reaction to widespread criticism of the company's push to start candid conversations about race in its stores. But Starbucks says the move had nothing to do with the backlash.