NPORS is an annual survey of U.S. adults conducted by Pew Research Center. Respondents can answer either by paper or online, and they are selected using address-based sampling from the USPS’s ...

Robert Kelly is managing director of XTS Energy LLC, and has more than three decades of experience as a business executive. He is a professor of economics and has raised more than $4.5 billion in ...

Asthma is the most common chronic airway disease worldwide, imposing substantial clinical, societal, and economic burden.

Statistical methods are mathematical formulas, models, and techniques that are used in statistical analysis of raw research data. The application of statistical methods extracts information from ...

National security, unlocked. Each Thursday, host Mary Louise Kelly and a team of NPR correspondents discuss the biggest national security news of the week. With decades of reporting from battlefields ...

Download ASTM International's free guide to streamline certification for additively manufactured parts in defense sectors.