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31.
Whichever party or parties form the next UK government, a Strategic Defence and Security Review (SDSR) is expected to begin soon after the general election in May. The review might be a ‘light touch’ exercise—little more than a reaffirmation of the SDSR produced by the coalition government in 2010. It seems more likely, however, that the review will be a lengthier, more deliberate exercise and one which might even last into 2016. For those most closely engaged in the process the challenge is more complex than that confronted by their predecessors in 2010. The international security context is more confused and contradictory; the UK's financial predicament is still grave; security threats and challenges will emerge that cannot be ignored; the population's appetite for foreign military engagement appears nevertheless to be restricted; and prevailing conditions suggest that the risk‐based approach to national strategy might be proving difficult to sustain. Two key questions should be asked of the review. First, in the light of recent military experiences, what is the purpose of the United Kingdom's armed forces? Second, will SDSR 2015–16 sustain the risk‐based approach to national strategy set out in 2010, and if so how convincingly? Beginning with a review of the background against which SDSR 2015–16 will be prepared, this article examines both enduring and immediate challenges to the national strategic process in the United Kingdom and concludes by arguing for strategic latency as a conceptual device which can complement, if not reinvigorate, the risk‐based approach to national strategy and defence.  相似文献   
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The interactions of nature and society are intimately reflected in the degradation of the vast, yet diverse, landscapes and ecosystems of arid western China. The development of agriculture, especially irrigation, has altered rivers, soils and ecosystems so much that major ecological rehabilitation and restoration efforts have been needed since 1950. The catchments of the Tarim River in southern Xinjiang (the Tarim Basin) and of the Black River (Hei He) in Gansu Province and western Inner Mongolia provide examples of the benefits, difficulties and conflicts involved in dryland water management. In the early stages of the human development of these catchments, agriculture depending on irrigation using water from these inland rivers was encouraged. The over‐exploitation of these water resources led to such ecological problems as desiccation of lakes, drying out of rivers, degradation of soils and vegetation and lowering of groundwater levels, with consequent environmental and economic impacts. Since 1990 several high‐cost, national projects to re‐establish ecosystems have been initiated. Water is now released from dams in the headwaters of the rivers in order to restore water flows to the dried out lake basins. Such schemes have inevitably led to social problems and difficulties for the people who depended on the water from the dams for local irrigation. The contrasts in adjustments and attitudes over the use of water for agriculture and other economic activities, as opposed to schemes of restoration of ecosystems and ecological engineering, stem largely from two issues; inconsistent provision of information from the scientific community, and differing ideologies, namely environmental protection versus economic development.  相似文献   
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In the immediate wake of the 1996 Australian federal elections pundits variously attributed the ALP's defeat to the loss of its 'heartlands', to the party's failure in government to retain the support of 'battlers', or even to the collapse of Labor's traditional blue-collar 'core' constituency. Using Queensland as a case-study, and drawing on aggregate as well as survey data, this research note provides support for claims that Labor's traditional support base deserted it in 1996.  相似文献   
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The radiographs of 43 skulls recovered from a 4000-year-old site in Central Thailand were examined for changes in the pulp chamber and root canals of teeth. Eleven specimens aged between 8 and 40 years featured marked root canal radiopacities not consistent with the appearance of dentine. Scanning electron microscopy and electron microprobe analysis revealed the presence of crystals of almost pure calcium. The crystals had developed post-mortem, with the likely source of the mineral being sea shells which were abundant at the place of burial. © 1997 by John Wiley & Sons, Ltd.  相似文献   
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