D. R. Newman

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This paper gives a detailed account of the content analysis method developed at Queen's University Belfast to measure critical thinking during group learning, as used in our controlled comparisons between learning in face-to-face and computer conference seminars. From Garrison's 5 stages of critical thinking, and Henri's cognitive skills needed in CMC, we(More)
A workflow-centric research object bundles a workflow, the provenance of the results obtained by its enactment, other digital objects that are relevant for the experiment (papers, datasets, etc.), and annotations that semantically describe all these objects. In this paper, we propose a model to specify workflow-centric research objects, and show how the(More)
With the global bioenergy boom, the planting of jatropha (Jatropha curcas) was widely promoted by the private sector and non-government organizations as one of the candidate tree species for bioenergy in Kenya. This was motivated by the belief that it grows easily with minimal management requirements. The present study attempts to determine whether(More)
Using a national multipayer commercial claims database containing allowed amounts, we examined variations in the prices for 242 common medical services in forty-one states and the District of Columbia. Ratios of average state prices to national prices ranged from a low of 0.79 in Florida to a high of 2.64 in Alaska. Two- to threefold variations in prices(More)
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OBJECTIVES Billions of dollars have been spent on the goal of making healthcare data available to clinicians and researchers in the hopes of improving healthcare and lowering costs. However, the problems of data governance, distribution, and accessibility remain challenges for the healthcare system to overcome. STUDY DESIGN In this study, we discuss some(More)
This proposal is being submitted by 3 researchers who came together for the first time at the EPSRC Ideas Factory sandpit on Scientific Uncertainty and Decision-making. Since this is a new idea, generated at the sandpit, we have not worked on it before: in fact, no-one has. However, we have researched areas relevant to this proposal. We have complementary(More)
We introduce a basic ontology of functions and dispositions. The theory we suggest is compatible both with major philosophical theories of biological functions and with most top-level ontologies. The particular focus of the suggested formalism is on the inference of causal relationships from functionality and the explicit formalization of the normative(More)