OBJECTIVE To quantify the use of health care resources among patients enrolled in the Bahia State Asthma and Allergic Rhinitis Control Program. METHODS As of January of 2006, 1405 patients had enrolled in the program, which is carried out in four referral centers in the city of Salvador. These patients formed the basis of this retrospective/prospective, observational cohort study. The prelimi...

This paper presents a multiple-rescue model for an emergency supply chain system under uncertainties in large-scale affected area of disasters. The proposed methodology takes into consideration that the rescue demands caused by a large-scale disaster are scattered in several locations; the servers are arranged in multiple echelons (resource depots, distribution centers, and rescue center sites)...

demand response (dr) has many beneficiaries in the electricity market. there are independent players who are interested in dr, which include: transmission system owners, distributors, retailers, and aggregators. in this paper dr is introduced as a tradable commodity that can be exchanged between dr buyers and sellers in a pool-based market which is called demand response exchange (drx). drx ope...

With increasing the energy demand, optimal and safe operation of power systems is main challenge for engineers. Thus, a technique implementation demand response programs (DRPs), installation distributed generation (DG) with transmission distribution factors, DC dynamic load flow presented in this paper. In fact, finding time execution DRPs bus installing wind units its probabilistic effects con...

BACKGROUND We aimed to assess the structure, function and performance of Ashanti Region's emergency medical services system in the context of the regional need for prehospital emergency care. DESIGN A mixed-methods approach was employed, using retrospective collection of quantitative data and prospectively gathered qualitative data. Setting - pertinent data were collected from Ghanaian and in...

With increasing attention to climate change, the penetration level of renewable energy sources (RES) in electricity network is increasing. Due intermittency RES, gas-fired power plants could play a significant role backing up RES order maintain supply–demand balance. As result, interaction between gas and networks are significantly On other hand, due increase peak demand (e.g., electrification ...

Virtual power plant (VPP) is an effective approach to aggregate distributed generation resources under a central control. This paper introduces a mixed-integer linear programming model for optimal scheduling of the internal resources of a large scale VPP in order to maximize its profit. The proposed model studies the effect of a demand response (DR) program on the scheduling of the VPP. The pro...