With black boxes in hand, investigators are now focusing on the actions of American Airlines Flight 5342 and an Army Black Hawk helicopter before they collided last week outside Reagan National ...

Rep. James Comer (R-Ky.), chair of the Committee on Oversight and Government Reform, is investigating the United States Navy ...

The American Airlines flight involved in the deadly collision with a Black Hawk helicopter over Washington, DC, seemed to ...

Add articles to your saved list and come back to them any time. “What’s the cheapest day and month to fly, and how far in advance should I book my flight ticket?” Wouldn’t it be great if ...

Adam Dean for The New York Times Want to learn more about this popular student activity? Watch this short introduction video and start using this multimedia feature in your classroom.

Since 1999, NHANES has collected data on approximately 10,000 individuals in 2-year cycles ... of these activities were used to calculate weekly metabolic equivalent (MET) estimates. NHANES provides ...

That’s not common today, but a wide variety of great cash back credit cards still exist, including some offering up to 2% unlimited cash back on everything and 5% back in rotating quarterly categories ...

Encompassing a five-level hierarchical classification codeset, UNSPSC enables expenditure analysis at grouping levels relevant to your needs. You can drill down or up to the codeset to see more or ...

Objective We assessed associations between physical activity and lung function, and its decline, in the prospective population-based European Community Respiratory Health Survey cohort.

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