Task graph scheduling is a multi-objective optimization and NP-hard problem. In this paper a new algorithm on homogeneous multiprocessors systems is proposed. Basically, scheduling algorithms are targeted to balance the two parameters of time and energy consumption. These two parameters are up to a certain limit in contrast with each other and improvement of one causes reduction in the othe...

Data Grid is an infrastructure that controls huge amount of data files, and provides intensive computational resources across geographically distributed collaboration. The heterogeneity and geographic dispersion of grid resources and applications place some complex problems such as job scheduling. Most existing scheduling algorithms in Grids only focus on one kind of Grid jobs which can be data...

Walk-in patients can take a large portion of outpatient visits in comprehensive hospitals. In current common practice, an even number appointments is assigned to each slot and with appointment are given strictly higher priority than walk-in patients. As result, usually wait longer incur noticeable dissatisfaction. To improve their satisfaction, we propose integrated optimization approach for pa...

the present study aims at locating the appropriate site for the training of medical students. it is argued that in community oriented medical education the training of medical students should take place where more patients come for consultation. this will result in students having a greater exposure to patients with a variety of medical problems. in order to find out the places where more patie...

Patient no-shows and cancellations are a significant problem to healthcare clinics, as they compromise clinic's efficiency. Therefore, it is important account for both into the design of appointment systems. To provide additional empirical evidence on no-show cancellation behaviour, we assess outpatient clinic data from two providers in USA EU: rates increase with scheduling interval, which num...

This paper investigates the determinants of regional variations in outpatient antibiotic consumption using Swiss data. The analysis contributes to the debate on appropriate antibiotic use by improving the understanding of its determinants, and may help to define more effective health care policies to reduce the resistance phenomenon. Findings suggest that Switzerland exhibits relatively low lev...

Outpatient surgery scheduling involves the coordination of several activities in an uncertain environment. Due to the very customized nature of surgical procedures there is significant uncertainty in the duration of activities related to the intake process, surgical procedure, and recovery process. Furthermore, there are multiple criteria which must be traded off when considering how to schedul...