David Quigley

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This research investigates the usage distribution of instructional resources shared among educators in an online learning community. The usage of a resource is defined by the number of unique educators who use (click on) it. We explored what the usage distribution of these resources looks like and we investigated what underlying mechanisms may have(More)
A novel method for understanding the equity of extracurric-ular learning opportunities within a regional learning ecosystem is presented. We apply the ecosystems concepts of abundance , richness, and evenness to understand the distribution of learning opportunities within the Chicago City of Learning. This analysis highlights the differences in learning(More)
1 CVD of graphene Graphene was grown on low-cost copper foils (99.5% purity, 0.025 mm thick, Alfa Aesar product number 46365) using low pressure chemical vapour deposition. The foils were cleaned by electropolishing (10 s at 5 V, ~1.5 A) in an electrolyte containing orthophosphoric acid and urea, followed by rinsing in acetone and isopropanol. The growth(More)
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