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John G. Stewart 《Perspectives on Political Science》2013,42(1):16-22
Abstract This article explores and defends Leo Strauss's interpretation of Edmund Burke's thought. Strauss argues that Burke's conservatism is rooted in the modern empiricist school of John Locke and others. Following Strauss, this article sets out to consider the suitability of these foundational principles to conservative politics. Burke wants to temper or ennoble Lockean politics by inspiring sublime attachment to the political community and its traditions, but he shies away from stating universal standards according to which the traditions of political communities ought to be judged. This respect for reason in history without moorings in transcendent standards of reason or revelation leaves his conservatism on precarious ground. 相似文献
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Arlen F. Chase Diane Z. Chase John F. Weishampel Jason B. Drake Ramesh L. Shrestha K. Clint Slatton Jaime J. Awe William E. Carter 《Journal of archaeological science》2011,38(2):387-398
Advances in remote sensing and space-based imaging have led to an increased understanding of past settlements and landscape use, but – until now – the images in tropical regions have not been detailed enough to provide datasets that permitted the computation of digital elevation models for heavily forested and hilly terrain. The application of airborne LiDAR (light detection and ranging) remote sensing provides a detailed raster image that mimics a 3-D view (technically, it is 2.5-D) of a 200 sq km area covering the settlement of Caracol, a long-term occupied (600 BC-A.D. 250–900) Maya archaeological site in Belize, literally “seeing” though gaps in the rainforest canopy. Penetrating the encompassing jungle, LiDAR-derived images accurately portray not only the topography of the landscape, but also, structures, causeways, and agricultural terraces – even those with relatively low relief of 5–30 cm. These data demonstrate the ability of the ancient Maya to modify, radically, their landscape in order to create a sustainable urban environment. Given the time and intensive effort involved in producing traditional large-scale maps, swath mapping LiDAR is a powerful cost-efficient tool to analyze past settlement and landscape modifications in tropical regions as it covers large study areas in a relatively short time. The use of LiDAR technology, as illustrated here, will ultimately replace traditional settlement mapping in tropical rainforest environments, such as the Maya region, although ground verification will continue to be necessary to test its efficacy. 相似文献
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This article adapts a regional adjustment model to estimate and project the spatial outcome of population and employment growth in U.S. metropolitan areas. The three-equation multiplicative model of population change, employment change, and land absorption is estimated using three-stage least squares to account for endogeneity among the dependent variables and contemporaneous correlation across the system of equations. In addition to the core model, alternative specifications are estimated, imposing the initial conditions of size, land availability, and economic structure. The stability of the solutions is then examined using reduced-form equations estimated via the seemingly unrelated regression equations approach. The results reveal substantive evidence that population and employment growth are jointly determined, of how the two affect the outcome of land development, and, perhaps most importantly, stable and fractionally reasonable estimates at projected equilibrium points. Lastly, the adapted model controlling for the initial condition of land availability is used to project patterns of land consumption at equilibrium in 50 rapid-growth metropolitan areas. 相似文献