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This address is concerned with the lack of detailed understanding we have of rivers. It is argued that to manage river systems for environ- mental and ecological sustainability, there must be understanding of riverine biophysical processes. These are explored through a consideration of: (1) channel airspace and water; (2) the perimeter conditions of the channel as the boundary between erosional channel and depositional floodplain, both of which occupy the valley-floor trough; (3) ecological components of channels and (4) the human components where human interactions with catchment environments have such impacts on the biophysical systems. Finally, the implications of these four components for understanding the systems for more sustainable management are discussed.  相似文献   
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At the heart of the ‘special relationship’ ideology, there is supposed to be a grand bargain. In exchange for paying the ‘blood price’ as America's ally, Britain will be rewarded with exceptional influence over American foreign policy and its strategic behaviour. Soldiers and statesman continue to articulate this idea. Since 9/11, the notion of Britain playing ‘Greece’ to America's ‘Rome’ gained new life thanks to Anglophiles on both sides of the Atlantic. One potent version of this ideology was that the more seasoned British would teach Americans how to fight ‘small wars’ in Iraq and Afghanistan, thereby bolstering their role as tutor to the superpower. Britain does derive benefits from the Anglo‐American alliance and has made momentous contributions to the wars in Afghanistan and Iraq. Yet British solidarity and sacrifices have not purchased special influence in Washington. This is partly due to Atlanticist ideology, which sets Britain unrealistic standards by which it is judged, and partly because the notion of ‘special influence’ is misleading as it loses sight of the complexities of American policy‐making. The overall result of expeditionary wars has been to strain British credibility in American eyes and to display its lack of consistent influence both over high policy and the design and execution of US military campaigns. While there may be good arguments in favour of the UK continuing its efforts in Afghanistan, the notion that the war fortifies Britain's vicarious world status is a dangerous illusion that leads to repeated overstretch and disappointment. Now that Britain is in the foothills of a strategic defence review, it is important that the British abandon this false consciousness.  相似文献   
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The coinage of the first Rasulid sultan of the Yemen, al-Malik al-Mansūr, is discussed, with special attention to the production of his mint at Mabyan during the early years of his reign.  相似文献   
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The different responses in Great Britain and the United States to Martin Wight as a thinker of international relations reveal something about the contrasting academic cultures of the two countries. Wight was pre‐eminently an ‘arts’ man, regarding history and philosophy as essential prerequisites for understanding the world. Above all he was concerned with the moral dimension in politics, whether domestic or international. His pacifism in the Second World War, curiously linked to his profound sense of realism, reflected deep religious convictions; indeed theology, and particularly eschatology, underlay much of his thinking. His career centres upon first Chatham House and Nuffield College, Oxford, then the London School of Economics and Political Science, and finally the University of Sussex. His lectures at the LSE on international theory achieved legendary fame, but he did not publish much in his lifetime. The appearance since 1977 of four notable posthumous works has enhanced his already high reputation, as has the increasing scholarly interest in the ‘English School’, of which he is now seen as a founding father. Ian Hall's book is a brilliant piece of analysis in which Wight's theological world view—which was not obtrusive in his teaching and writing—is investigated with a sureness that is probably rare among scholars in the international relations field.  相似文献   
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How did German and English military chaplains commemorate the Great War? The established historiography broadly interprets war commemoration in the post‐war period in two ways. One approach presents commemoration as a ritual of healing that soothed the bereft. The other emphasizes the political function of commemoration, interpreting it as a way of reshaping the war in collective memory to legitimize the status quo — by venerating sacrifices made for the nation, it put the nation beyond question to strengthen allegiance to the established order. Both interpretations treat the language of war commemoration as one of consolation and comfort. Military chaplains, however, espoused a more ambitious mission. For them, the purpose of war commemoration was to inculcate dissatisfaction, guilt, and discomfort. This was because they remembered the war as a contest of ideas embodied in the clash of nations, a contest that was still unsettled. Their purpose was therefore the antithesis to consolation and conventional patriotism: to mobilize the living to honour their “blood debt” to the dead through the language of agitation. They themselves had participated in a war regarded by the churches as a campaign of regeneration through blood, in which sacrifice and suffering would revitalize their nations by bringing them to repentance, piety, and social cohesion. Because they were implicated personally in that incomplete crusade, they were especially anxious to realize the mission and complete the sacrifices of the dead. Anglican ex‐chaplains predominantly implored their congregations to ensure a permanent peace that had been purchased by blood, whereas German Protestants invoked a resurrected Volk reclaiming its status as a chosen people. Each articulated a politics of remembrance, one formed on the vision of a war to end all wars, the other on a vision of a war to resurrect the Reich as the Kingdom of God. While the political content of their memories was different, they shared an attitude to the function of remembrance, as a ritual to mobilize and arouse rather than console. Both groups preached that the peace was a continuation of an unfinished moral and spiritual struggle. Furthermore, while always honouring the dead, they stressed that the worth of their sacrifices was no longer guaranteed but contingent upon the conduct of living and future generations. Despite the divergences that emerged from their different confessional and national traditions, and from their respective circumstances, they shared a common moral language.  相似文献   
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Many institutions and agencies are currently faced with the issue of geographic information systems‐enabling legacy databases. The problems can be acute for data sets that have been compiled through many years, using different standards and levels of recording. To explore these issues further, we report on a data quality assessment undertaken in 2002 for a subset of the archaeological site database of the province of Alberta, Canada. Our work shows that positional ambiguities in the data set can be highlighted and corrected by relatively straightforward procedures. This case study also provides an indication of the amount of work effort that will be involved in validating or ‘cleaning up’ data sets so model results and analyses undertaken with them are more reliable.  相似文献   
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