Sophie D. Lapierre

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We discuss the problem of constructing physician schedules in emergency rooms. Starting from practical instances encountered in six different hospitals of the Montreal (Canada) area, we first we propose generic forms for the constraints encountered in this context. We then review several possible solution techniques that can be applied to physician(More)
This paper introduces the problem of scheduling emergency room physicians. We interviewed physicians from six hospitals in the greater Montreal, Canada area, in order to understand the emergency room scheduling problem. Extracting the real scheduling problem is difficult because physician working conditions are based on informal mutual cooperation which is(More)
Balancing assembly lines is a crucial task for manufacturing companies in order to improve productivity and minimize production costs. Despite some progress in exact methods to solve large scale problems, softwares implementing simple heuristics are still the most commonly used tools in industry. Some metaheuristics have also been proposed and shown to(More)
In light of the rapidly increasing development of the cell phone market, the use of such equipment while driving raises the question of whether it is associated with an increased accident risk; and if so, what is its magnitude. This research is an epidemiological study on two large cohorts, namely users and non-users of cell phones, with the objective of(More)
In this paper, we propose a strategy to build a measurement system that helps improve on-time performance in health care organizations. We analyze the measurement system for monitoring the performance of daily start times of first surgeries in a U.S. hospital. Although surgeons appear to be the main cause of delay, efforts to improve their on-time(More)
We address the problem of designing new networks for the delivery of public health care services in the United States. The paper is based on a case study design conducted with the Fulton County Health Department (Atlanta, GA). The research contribution this paper makes is twofold. First, it presents a planning methodology to deliver health care services(More)