Michael Schmuker " All models are wrong, but some models are useful. " – George E. P. Box (1979)

Background and Objectives: Emergency departments should adapt the most updated standards in order to maximize their capability in delivering urgent health services. In the present study we assessed the effect of training of triage nurses in Tehran Emergency Department on efficiency and accuracy of triage decision making. Methods: In this quasi-experimenta...

Items arrive at a processing plant at a Folsson rate X . At time T , all Items are dispatched from the system. An Intermediate dispatch time Is to be chosen to minimize the total wait of all Items. It Is shown that If the dispatch time must be chosen at time 0 then T/2 not only minimizes the expected total wait but it also maximizes the probability that the total wait is less than a for every a...