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ABSTRACT Parental choice among schools in England is informed by annually published school performance (league) tables. The 2006 league tables included a measure of contextual value added (CVA) for the first time. By explicitly accounting for the characteristics of a school's intake, the aim is that CVA should isolate the impact a school has on its pupils' progress and so provide a measure of school effectiveness. In this paper we use UK government administrative data to replicate CVA and other key performance measures in order to investigate the extent to which the current league tables provide the information necessary to support parental choice on the basis of school effectiveness. We find that school rankings based on CVA are largely uninformative for parents: almost half of English secondary schools are indistinguishable from the national average level of CVA. 相似文献
133.
Though the build-up of China's blue-water fleet is causing consternation in foreign-policy circles, the country's on-going expansion into Russia and the former Soviet Union has scarcely garnered comment. For the past decade, China has used its foreign reserves to acquire strategic assets (principally infrastructure and natural resources) and tracts of sovereign territory along its existing borders and increasingly further afield. The impact on targeted countries (and, in turn, their own foreign policy) is extreme, with serious implications for security and economics far beyond their borders. This article provides an overview of China's acquisitions and investments in Eurasia, followed by more detailed discussion of recent developments and responses in Central Asia, Ukraine and Mongolia, and Siberia. It then looks at the impact of China's actions on Sino-Russian relations, discusses the importance of Russia and Central Asia as a resource corridor and buffer zone between Europe and China, and suggests how these manoeuvrings might result in long-term benefits for China. 相似文献
134.
In the UK, the Joint Intelligence Committee (JIC) has a poor track record of predicting attack. In the US, official inquiries into 9/11 identified ‘a failure of imagination’ to conceive of a large scale threat to the American homeland. There is a long-standing literature on surprise attack which emphasizes that clues to predict attack often exist but are not pieced together by an intelligence sector which is not structured to look in the right direction. In a world of increasingly fragmented threats and weak signals, it is apparent that much of the challenge in intelligence work now lies not in collection but in managing requirements, setting priorities, and conducting incisive analysis based on the ability to imagine new threats. One solution to a failure of imagination is to widen the range of people who can contribute to the task. Non-Governmental analysis of security issues, whether by academia, civil society or the private sector, can help to identify emerging issues and set priorities. Whilst collection of secret intelligence may always remain the preserve of specialist Government agencies, the rest of the intelligence cycle can benefit from external contributions and open source intelligence. We argue that the process of setting intelligence requirements could be opened to a wider range of actors. In conflict environments, there may be particular value in an open process to identify what each side would need to know about the other to confidently seek peace. 相似文献
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G S Lee K M Brinch K Kannangara M Dawson M A Wilson 《Journal of forensic sciences》2001,46(4):808-821
Both solution and solid state Nuclear Magnetic Resonance (NMR) spectroscopic techniques have been used to determine differences in commercially available condoms. Whilst solid state NMR is useful for determining the polymer backbone, it is not useful for forensic analysis due to the commonality of the latex condom. However solution NMR spectra obtained following a simple extraction procedure using hexane, provides a fingerprint of the additives in the lubricants. Following the development of a flow chart, basing decisions on the presence of particular peaks present in the solution spectra, 33 of 38 condoms could be individualized. Samples were also analyzed after having the lubricant manually removed and soaking the condom in water for 3 to 24 h. These experiments were performed to simulate a case of the sample having been used and disposed of by flushing down the toilet, as may be experienced in a case of a sexual assault. The results indicated that the only significant water soluble component was polyethylene glycol. The overall results suggest that the method developed may be a quick and useful technique in characterizing condoms. The information obtained can be used to provide associative evidence between suspect and crime, and so be useful in sexual assault cases. 相似文献
138.
This article argues that Robert Putnam's social capital thesis is too society-centred and undervalues state agency and associated political factors. It explores the role of institutional design in explaining how governments can shape the development of social capital and its potential influence upon democratic performance. New Labour's programme of 'democratic renewal' within British local government provides an excellent opportunity to assess the relevance of institutional design to arguments about social capital and democracy. We propose that prospects for the creation and mobilization of social capital may depend as much upon the process as the content of institutional design. 相似文献
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