We study timed Petri nets, with preselection and priority routing. represent the behavior of these systems by piecewise affine dynamical systems. use tools from theory nonexpansive mappings to analyze establishan equivalence theorem between priority-free fluid nets semi-Markov decision processes, which we derive convergence a periodic regime polynomial-time computability throughput. More genera...

*Department of Emergency Medicine, Newark Beth Israel Medical Center, Children’s Hospital of New Jersey, Newark, New Jersey, †New Jersey Medical School, University of Medicine and Dentistry of New Jersey, Newark, New Jersey, and ‡Rutgers University, College of Nursing, Newark, New Jersey Reprint Address: Adam Brand Sivitz, MD, Department of Emergency Medicine, Newark Beth Israel Medical Center,...

PROBLEM When patient safety programs were mandated for Japanese health care institutions, a safety culture, a tool for collecting incident reports, an organizational arrangement for multidisciplinary collaboration, and interventional methods for improvement had to be established. DESIGN Observational study of effects of new patient safety programs. SETTING Osaka University Hospital, a large...

This study was conducted with the purpose of determining the frequency of medication errors (MEs) occurring in tertiary care emergency department (ED) of a large academic hospital in Iran. The incidence of MEs was determined through the disguised direct observation method conducted by a trained observer. A total of 1,031 medication doses administered to 202 patients admitted to the tertiary car...

INTRODUCTION Emergency medicine is a new academic discipline, as well as a recent independent clinical specialization with the specific principles of practice, education and research. It is also a very important segment of the overall health care and health system. Emergency medicine as a distinct specialty was introduced in the U.S. in 1970. Ten years later and relatively quickly emergency med...