Monitoring and tracking social inequalities in the burden of diabetes over time can help to assess whether Canadian diabetes strategies are effective at reaching marginalized populations and mitigating inequalities. Our results signal the need for interventions to address growing social inequalities in Canada with regard to type 2 diabetes, particularly among women.
From the early days of experimental windmills and inter-seasonal solar heat stores to today's water-balanced cliff railway, wood chip burner and award-winning rammed earth construction, the Centre for Alternative Technology's (CAT) knowledge-sharing ethos has always helped to push sustainable technologies towards the mainstream. This paper covers three decades of engineering innovations at the CAT and looks toward future methods for renewably meeting our energy demands or, rather, making our energy demands meet the renewable solutions.
We created a desktop-OR decision support system to support the Coast Guard’s planned replacement of the 37-vessel seagoing and coastal buoy tender fleet. Using sophisticated GIS routines to build travel networks and a rudimentary traveling salesman problem heuristic to generate routes, we proposed a seven-vessel decrease in the fleet, representing a capital cost savings of $350 million and personnel reduction of 500 billets. The commandant presented these results to Congress, and the Senate’s fiscal year 1993 US Department of Transportation’s appropriations bill fully funded the replacement request and commended the Coast Guard’s analytical effort. The success of this application suggests a dynamic for the burgeoning desktop-OR market; the interface between operations research models and their algorithms is far more developed than the interface between actual problems and their models, and success will come to those who facilitate this latter mapping.
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