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...

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...

In response to California’s electricity supply and demand crisis of 2001, the Sacramento Municipal Utility District (SMUD) implemented a portfolio of programs funded by the California Legislature, through Senate Bill 5X. As part of its SB5X portfolio, SMUD implemented a Small Commercial Prescriptive Lighting program. SMUD’s initial goal for the program was to achieve installation 450 installati...

background recognizing the importance of having a broad exploration of how cultural perspectives may shape thinking about ethical considerations, the centers for disease control and prevention (cdc) funded four regional meetings in africa, asia, latin america, and the eastern mediterranean to explore these perspectives relevant to pandemic influenza preparedness and response. the meetings were ...

Due to climate change, frequencies of natural disasters, including earthquake, hurricane, typhoon and heavy precipitations, increase rapidly. The emergency distribution center (EDC) plays an important role in emergency planning and disaster response. During the process of delivering relief to shelters, the infrastructure could be deteriorated by the disaster. Most of the existing models neglect...