Abstract: The infinity and orthogonality of the orbital angular momentum (OAM) of vortex electromagnetic waves (VEMWs) provide a new degree of freedom for the modulation of information. The VEMW ...
WASHINGTON—The Federal Reserve entered a new holding pattern on interest rates Wednesday and signaled little urgency to resume cuts after contentious reductions at officials’ three previous meetings.
Health insurers are warning that flat Medicare Advantage rates, as proposed by the Trump administration late Monday, would likely force them to take a deep look at the benefits they offer. The news ...