This research models and simulates, by way of a System Dynamics, approach sleep behavior in the presence of intervention strategies. The authors draw upon the established compartmental Susceptible, Infection, and Recovery (SIR) model used in epidemiology to characterize the potential for...

The treatment and management of chronic diseases currently comprise a major fraction of the United States' healthcare expenditures. These expenses are projected to increase as the US population ages. Utilization of the ambulatory healthcare system stemming from chronic conditions has been seen...

The contribution of any specific sector to the development of a country evolves alongthe time. In some periods a country can move from a catching up towards a leadingposition with respect other countries. The factors explaining this change of position isrelated to the evolution of the system of...