Negative Imaginary (NI) systems theory is an emerging branch of control theory that focuses on the frequency response characteristics of dynamical systems. At its core, the theory exploits conditions ...

Rachel Dobkin is a Newsweek reporter based in New York. Her focus is reporting on politics. Rachel joined Newsweek in October 2023. She is a graduate of The State University of New York at Oneonta.

Negative temperature coefficient (NTC) ceramics and thin films represent a pivotal class of materials in modern electronics, where their intrinsic property of decreasing electrical resistance with ...

A new weather map shows that several major Midwest cities will hit negative temperatures next week as a polar vortex continues to sweep across the United States. While brutal temperatures are nothing ...