Abstract: This work presents a new Petri nets based approach for modeling discrete event systems in which activities compete for common resources. The new approach is known as Activity-Oriented Petri ...

Ewan Gleadow is a breaking news reporter for Raw Story based in the United Kingdom. He previously worked for The Daily Mirror and its sister site, The Mirror US. He also runs the music and culture ...

A major global study suggests that a hidden mismatch between two common blood tests could quietly signal serious trouble ahead. When results from creatinine and cystatin C—two markers used to assess ...

As the official celebrations of the 250th anniversary of the signing of the Declaration of Independence culminate on July 4, a well-financed, privately funded initiative will kick off to try to ...