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101.
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Chris Grover 《Disability & Society》2014,29(8):1324-1328
In March 2014 Atos Healthcare withdrew a year early from its contract to provide the UK’s health assessment – the Work Capability Assessment (WCA) – that is supposed to sort disabled people into administrative categories according to their adjudged capability to do paid work. This move was welcomed by political elites, with, for example, UK Coalition Government Minister for Disabled People Mike Penning using it to criticise previous Labour governments for the contractual arrangements they put in place – although while the Coalition may have been concerned with the contractual arrangements soon after being formed, it extended the contract for five years. For the UK disability movement, the withdrawal of Atos Healthcare early from the WCA contract was a victory and, at least in part, a consequence of disabled activists’ resistance to the Employment and Support Allowance generally, and the WCA in particular. 相似文献
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Chris Jones 《Significance》2008,5(1):46-48
It rises massive and magnificent above Salisbury Plain. The extraordinary monoliths of Stonehenge leave us as impressed today as ever—and as baffled. Archaeologists argue about how it was made. Can statisticians tell the answer? Chris Jones thinks they can be of considerable assistance. 相似文献
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Gavin A. Whitaker Andrew Golightly Richard J. Boys Chris Sherlock 《Statistics and Computing》2017,27(4):885-900
We consider the task of generating discrete-time realisations of a nonlinear multivariate diffusion process satisfying an Itô stochastic differential equation conditional on an observation taken at a fixed future time-point. Such realisations are typically termed diffusion bridges. Since, in general, no closed form expression exists for the transition densities of the process of interest, a widely adopted solution works with the Euler–Maruyama approximation, by replacing the intractable transition densities with Gaussian approximations. However, the density of the conditioned discrete-time process remains intractable, necessitating the use of computationally intensive methods such as Markov chain Monte Carlo. Designing an efficient proposal mechanism which can be applied to a noisy and partially observed system that exhibits nonlinear dynamics is a challenging problem, and is the focus of this paper. By partitioning the process into two parts, one that accounts for nonlinear dynamics in a deterministic way, and another as a residual stochastic process, we develop a class of novel constructs that bridge the residual process via a linear approximation. In addition, we adapt a recently proposed construct to a partial and noisy observation regime. We compare the performance of each new construct with a number of existing approaches, using three applications. 相似文献
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Chris J. Lloyd 《统计学通讯:理论与方法》2013,42(5):1115-1132
A simple random sample on a random variable A allows its density to be consistently estimated, by a histogram or preferably a kernel density estimate. When the sampling is biased towards certain x-values these methods instead estimate a weighted version of the density function. This article proposes a method for estimating both the density and the sampling bias simultaneously. The technique requires two independent samples and utilises ideas from mark-recapture experiments. An estimator of the size of the sampled population also follows simply from this density estimate. 相似文献
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Susan Davis Deana Groves Alison C. Roth Emily McElroy Chris Brady 《Serials Review》2013,39(4):354-359
AbstractReports on the Ohio Valley Group of Technical Services Librarians (OVGTSL) Annual Conference, the April 2004 New England Technical Services Librarians (NETSL) Conference, the 2004 Acquisitions Institute at Timberline Lodge, and the 2004 Conference of the North American Serials Interest Group (NASIG).Reports are from four conferences held in various parts of the United States and cover a wide range of topics. The Ohio Valley Group of Technical Services Librarians program emphasized the relationship between technical and public services. Education, both formal and continuing, was the theme for the New England Technical Services Librarians. Timberline Lodge hosted another Acquisitions Institute featuring sessions on new discoveries. The report on the 2004 North American Serials Group Annual Conference allows Conference Student Grant Award winner Chris Brady to include some personal reflections along with summaries of the sessions he attended. 相似文献
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This study is to empirically testify that corporate elitism is an antecedent to groupthink, which prevents organizational empathy from working effectively in crises. The current study is expected to expand the boundary of crisis management literature into a company’s crisis-preparedness before a crisis occurs. The findings offer the useful guidance to organizations on how to better manage their crisis proneness through identifying the early signs of corporate elitism and groupthink. 相似文献
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