Contrary to numbers released by the U.S. Census Bureau on Sept. 12, researchers at the University of Chicago Harris School of Public Policy and the University of Notre Dame find that poverty has fallen sharply in the U.S. in recent decades.

Researchers have now succeeded in formulating a mathematical result that provides an exact answer to the question of how chaos actually behaves.

Artificial-intelligence research has been transformed by machine-learning systems called neural networks, which learn how to perform tasks by analyzing huge volumes of training data.

A single change to a century-old statistical standard would dramatically improve the quality of research in many scientific fields, shrinking the number of so-called false positives, according to a commentary published Sept.