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121.
David C. Howard Richard A. Wadsworth Jeanette W. Whitaker Nick Hughes Robert G.H. Bunce 《Land use policy》2009
Historically, land use in Britain has been shaped by the environment's capacity to provide energy as well as food, water and shelter. Over the next decades, energy will again become a major driver in land cover change as we seek to capture the necessary energy to replace fossil fuels, reduce environmental damage and substitute for insecure supplies. Britain was one of the first places to exploit fossil fuels extensively, initially coal, and it has the potential to generate considerable amounts of renewable energy from tides, waves, the wind, biomass and sunlight. The UK Government's policy is to develop a suite of technologies that will provide a resilient supply without compromising its economy or its international commitments to environmental protection.This paper examines the three major terrestrial options for renewable energy and assesses each by successively filtering them for feasibility, achievability and practicality incorporating existing developments, designation and public opinion. Technology and opinion are dynamic, so the outputs need to be viewed as indicative of alternative scenarios rather than as fixed forecasts. Implications for changes in the energy supply infrastructure needed to match the new supply chains are highlighted.The demand for energy depends on the demographic profile (population size, age distribution, lifestyle and expectations) and on economic activity. Here total demand is predicted using the UK Energy Research Centre's Energy 2050 model, which uses linear programming to balance economics and environmental capacity by major demand sectors in five-year time steps. The core model often generates challenging results. 相似文献
122.
Ex ante hedging effectiveness of the FTSE 100 and FTSE Mid 250 index futures contracts is examined for a range of portfolios, consisting of stock market indexes and professionally managed portfolios (investment trust companies). Previous studies which focused on ex post hedging performance using spot portfolios that mirror market indexes are shown to overstate the risk reduction potential of index futures. Although ex ante hedge ratios are found to be characterised by intertemporal instability, ex ante hedging performance of direct hedges and cross hedges approaches that of the ex post benchmark when hedge ratios are estimated using a sufficient window size. 相似文献
123.
This article presents a thoroughgoing critique of Fernie and Metcalf's perspective, that the call centre is characterised by the operation of an 'electronic panopticon' in which supervisory power has been 'rendered perfect'. Drawing on evidence from a telecommunications call centre the authors analyse the significance of emerging forms of employee resistance. 相似文献
124.
This article describes and estimates, with monthly data, a model of the economic interactions between the United States, the United Kingdom, France and Germany over the years 1927–1936. Despite the radically different economic environment, the model shows broadly similar qualitative and dynamic responses to policy instruments and other changes to those of multi-country models estimated on more recent data. The model is simulated to assess the causes of the Great Depression and the particular contribution of European and American policies to the slump. Optimum strategic policy equilibria are then computed. They point to the mismanagement of the US economy as the principal cause of the depression, although French and German policies were also harmful. British policymakers performed rather well, but their economy suffered because of the other countries’ policy errors. 相似文献
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Phil Lyon Eija‐Riitta Alho Marjatta Hillman Anne Colquhoun 《International Journal of Consumer Studies》2007,31(4):397-403
In Finland there are valid questions being asked about the sustainability of the current provision in state healthcare systems. Structurally, lower birth rates and greater longevity mean that populations age and present the challenge of chronic illness management in later life for a larger proportion of the population. Culturally, some 50 years after the introduction of a state healthcare system, ageing populations will have greater expectations of service quality than their predecessors. Paradoxically, they will also have a greater engagement with lifestyles which themselves will bring new challenges to long‐term health status. There is no single solution to the complex problem of service sustainability but undoubtedly health education provides some potential to limit future demands. Diet‐related illness and incapacity are specific health challenges for the coming decades but the problems can be substantially reduced by changing current behaviour. To make such changes possible, knowledge needs to be communicated effectively in terms of simplicity, accuracy and with appropriate timing. Health education can make a major contribution to service sustainability. This paper reports a study of primary care nurses (n = 50) in the Tampere area and examines their capacity to provide healthy eating advice. In this sample, nurses often demonstrated good levels of nutritional knowledge on which to base patient advice, but there was considerable variation. Arguably, focused in‐service training would provide updating on theory and practice for more consistent advice and better prospects for behavioural change. 相似文献
128.
This article uses a survey to explore relations between teaching and research of accounting and finance academics in Australia and New Zealand (ANZ). Previous research on the relationship between research and teaching is inconclusive. Two recent studies consider research–teaching relations in the accounting discipline in South Africa and the United Kingdom (UK). This investigation extends work undertaken in the UK to ANZ. Contrary to expectations, research‐active faculty see little merit in integrating research with teaching, while more junior and teaching‐oriented faculty do. In addition, the empirical model underlying the teaching–research Gestalt is remarkably similar to both ANZ and the UK. 相似文献
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130.
Dr. Phil. E. A. Hintikka 《Scandinavian actuarial journal》2013,2013(1):243-246
Abstract In der technischen Behandlung der Invaliden- oder Krankenversicherung kommt die Aufgabe vor, aus der Gruppe der Lebenden die Gruppe der Aktiven auszuscheiden. Dies wird in der Praxis vielleicht ausnahmslos derart ausgeführt, dass die Gruppe derjenigen Invaliden gleichen Alters, welche im Laufe eines Jahres invalid werden, weiter Jahr für .Jahr verfolgt wird. Angenommen, dass die Anzahl der Aktiven in einem Zeitpunkt gegeben ist, lässt sich vermittels der gegebenen Wahrscheinlichkeiten die Anzahl der während eines Jahres invalid Gewordenen und am Ende des ersten Jahres und späterer Jahre lebenden Invaliden ermitteln. Die Ausscheidetafel der Aktiven wird auf diese Weise Schritt für Schritt von dem jüngsten Alter zu den höheren weiter aufgebaut. 相似文献