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This study demonstrates that a professional journalism background contributes to the credibility evaluations of public relations practitioners in regards to expertness and the capability to meet journalistic values and expectations. However, having a professional journalism background does not necessarily render public relations practitioners any more trustworthy than not having such credentials. 相似文献
73.
Community Reactions to Young People Who Have Sexually Abused and Their Families: A Shotgun Blast,Not a Rifle Shot 下载免费PDF全文
Data on 117 young sexual abusers were examined to investigate the nature of community responses to young people's abusive behaviour. A wide range of community responses were found, with stigmatisation, social isolation and collateral damage being common. A contagion effect was noted, with community responses extending over time and across contexts. Some young offenders and their families were attacked and forced out of their homes. In some cases, community responses heightened risk factors. The policy and practice implications of the findings are discussed, including the need for caution about the inclusion of children in policies on community notification of sex offenders. 相似文献
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The phenomenon of cognitive enhancement is attracting attention in bioethics literature and beyond, in public policy. In response, three bodies--the British Medical Association (BMA); the Commission de l'éthique de la Science et de la technologie (CEST) du Québec; the American Academy of Neurology (AAN)--have produced reports and guidance on this topic. To gain insights into different public policy approaches, rationales, and recommendations on the topic, we analyzed these reports in depth. We found convergence on the definition (with the exception of the CEST) of cognitive enhancement. However, we noted a lack of critical reflection with respect to the underlying rationale for developing these reports, i.e., that cognitive enhancement practices are rampant and represent major social changes. As it currently stands, cognitive enhancement is constituted in a way that challenges the creation of coherent and effective policy recommendations. However, policy makers should not simply wait for definitional consensus and hope that on balance the benefits turn out to be greater than the risks. Some components of cognitive enhancement could be reduced down to clearly identified policy targets to be further examined. Then, if appropriate, policy should be created that is, amongst other criteria, beneficial to the majority of the population. 相似文献
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Bartels Simon Cockayne Jon Ipsen Ilse C. F. Hennig Philipp 《Statistics and Computing》2019,29(6):1249-1263
Statistics and Computing - Several recent works have developed a new, probabilistic interpretation for numerical algorithms solving linear systems in which the solution is inferred in a Bayesian... 相似文献
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Edward Susko Michael J. Bronskill Simon J. Graham Robert J. Tibshirani 《Revue canadienne de statistique》2001,29(3):379-394
Magnetic resonance imaging techniques can be used to measure some biophysical properties of tissue. In this context, the T2 relaxation time is an important parameter for soft‐tissue contrast. The authors develop a new technique to estimate the integral of the distribution of T2 relaxation time without imposing any constraint other than the monotonicity of the underlying cumulative relaxation time distribution. They explore the properties of the estimation and its applications for the analysis of breast tissue data. As they show, an extension of linear discriminant analysis is found to distinguish well between two classes of breast tissue. 相似文献
80.
Simon C. Barry & A. H. Welsh 《Journal of the Royal Statistical Society. Series B, Statistical methodology》2001,63(1):23-31
We consider the method of distance sampling described by Buckland, Anderson, Burnham and Laake in 1993. We explore the properties of the methodology in simple cases chosen to allow direct and accessible comparisons of distance sampling in the design- and model-based frameworks. In particular, we obtain expressions for the bias and variance of the distance sampling estimator of object density and for the expected value of the recommended analytic variance estimator within each framework. These results enable us to clarify aspects of the performance of the methodology which may be of interest to users and potential users of distance sampling. 相似文献