Abstract: In this paper, a novel sliding mode control (SMC) method is designed to investigate the finite-time consensus tracking (FTCT) problem of the second-order leader-following multi-agent systems ...

Take a deep breath in. Now let it out. You may notice a difference in how you feel already. Your breath is a powerful tool to ease stress and make you feel less anxious. Some simple breathing ...

NEW YORK — Leaders of Young Republican groups throughout the country worried what would happen if their Telegram chat ever got leaked, but they kept typing anyway. They referred to Black people as ...

A notorious predominantly English-speaking hacking group has launched a website to extort its victims, threatening to release about a billion records stolen from companies who store their customers’ ...

Pro-Palestinian protesters won council elections, and have refused to fund campus groups, like the men’s Ultimate Frisbee team, unless their divestment demands are met. Pro-Palestinian activists last ...

Birth-control pills are being falsely categorized by some conservatives as “abortifacients” — something used to terminate a pregnancy. (Jim Watson/AFP/Getty Images) Republican lawmakers in Missouri ...

Gaslighting is a form of psychological abuse where a person causes someone to question their sanity, memories, or perception of reality. People who experience gaslighting may feel confused, anxious, ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

A carcinogen is something that can cause cancer. Carcinogens can be chemicals, infections, some kinds of radiation, smoke and air pollution, or other substances. In general, the American Cancer ...

David Siders is a politics editor at POLITICO. He previously was a national political correspondent at POLITICO and a senior writer for The Sacramento Bee. The battle to redefine America’s political ...