The United States held meetings with a Russian delegation in Abu Dhabi on Tuesday, two U.S. officials told NBC News, as the Trump administration said only “a few delicate, but not insurmountable, ...

So many productivity methods ask you to prioritize your daily tasks by considering how much time or effort they'll require, then tackling the resource-heavy ones first. For some people, that's a solid ...

Ukraine said Tuesday that it was hoping to finalize a deal with President Donald Trump in the coming days, as the United States intensified its new push to end Russia's war. Kyiv and its allies voiced ...

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 ...

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 ...

Computational models are mathematical models used to numerically study the behaviour of complex systems by means of a computer simulation. A computational model can be used to make predictions of the ...