Abstract: Moving average filters output the average of N samples, and it is easy to see (and to prove) that they are low-pass filters.

Abstract: The model reference adaptive system approach together with the positivity lemma for time varying discrete systems are used to construct recursive identifiers with a parallel adjustable model ...

Nonprofit hospitals are still using a loophole in the federal program to turn their services intended to help the poor into cash-cow profit centers. Many of these hospitals are nonprofit in name ...