Professor Raúl Rojas has published a book about how symbols have been used throughout history in mathematics. The work was translated into English this year.

Abstract: A new switched-gain observer for linear systems subject to bounded disturbances is proposed. Specifically, we formulate the problem of constructing bimodal switched-gain observers within a ...

Abstract: Low Probability of Detection (LPD) communication aims to obscure the presence of radio frequency (RF) signals to evade surveillance. In the context of mobile surveillance utilizing unmanned ...

Gov. Wes Moore has launched war against President Trump, criticizing the federal government shutdown and its impact on Maryland."We are watching the president, Suspects sought in connection with south ...