379 research outputs found

    Shallow-Water Coral Reefs in Transition: Examples from Belize and The Bahamas

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    Reprinted from: Ronald D. Lewis and Bruce C. Panuska (eds.) Proceedings of the 11th Symposium on the Geology of the Bahamas and Other Carbonate Regions: San Salvador, Gerace Research Cente

    New neotropical Syrphidae

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    14 p. ; 24 cm.Includes bibliographical references

    Information-theoretical assessment of the performance of likelihood ratio computation methods

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    This is the accepted version of the following article: Ramos, D., Gonzalez-Rodriguez, J., Zadora, G. and Aitken, C. (2013), Information-Theoretical Assessment of the Performance of Likelihood Ratio Computation Methods. Journal of Forensic Sciences, 58: 1503–1518. doi: 10.1111/1556-4029.12233, which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1111/1556-4029.12233/Performance of likelihood ratio (LR) methods for evidence evaluation has been represented in the past using, for example, Tippett plots. We propose empirical cross-entropy (ECE) plots as a metric of accuracy based on the statistical theory of proper scoring rules, interpretable as information given by the evidence according to information theory, which quantify calibration of LR values. We present results with a case example using a glass database from real casework, comparing performance with both Tippett and ECE plots. We conclude that ECE plots allow clearer comparisons of LR methods than previous metrics, allowing a theoretical criterion to determine whether a given method should be used for evidence evaluation or not, which is an improvement over Tippett plots. A set of recommendations for the use of the proposed methodology by practitioners is also given.Supported by the Spanish Ministry of Science and Innovation under project TEC2009-14719-C02-01 and co-funded by the Universidad Autonoma de Madrid and the Comunidad Autonoma de Madrid under project CCG10-UAM/TIC-5792

    Understanding context in knowledge translation: a concept analysis study protocol

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    AimTo conduct a concept analysis of clinical practice contexts (work environments) that facilitate or militate against the uptake of research evidence by healthcare professionals in clinical practice. This will involve developing a clear definition of context by describing its features, domains and defining characteristics.BackgroundThe context where clinical care is delivered influences that care. While research shows that context is important to knowledge translation (implementation), we lack conceptual clarity on what is context, which contextual factors probably modify the effect of knowledge translation interventions (and hence should be considered when designing interventions) and which contextual factors themselves could be targeted as part of a knowledge translation intervention (context modification).DesignConcept analysis.MethodsThe Walker and Avant concept analysis method, comprised of eight systematic steps, will be used: (1) concept selection; (2) determination of aims; (3) identification of uses of context; (4) determination of defining attributes of context; (5) identification/construction of a model case of context; (6) identification/construction of additional cases of context; (7) identification/construction of antecedents and consequences of context; and (8) definition of empirical referents of context. This study is funded by the Canadian Institutes of Health Research (January 2014).DiscussionThis study will result in a much needed framework of context for knowledge translation, which identifies specific elements that, if assessed and used to tailor knowledge translation activities, will result in increased research use by nurses and other healthcare professionals in clinical practice, ultimately leading to better patient care.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/111196/1/jan12574.pd

    ‘Moving in concentric circles’? The history and politics of press inquiries

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    In this paper, we consider the Leveson inquiry's use of a narrative device – the policy cycle – to justify the need for a break with the past. We challenge that narrative, which runs through much of the literature, and posit a more nuanced and complex account of the politics and history of press inquiries, drawing upon the political science literature. We then reflect upon the implications of our findings for the future of press regulation
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