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High-occupancy vehicle (HOV) lanes have been promoted to encourage carpools, reduce traffic congestion, and improve air quality. At the partial equilibrium level, commuting with three workers per automobile clearly reduces highway congestion, lowers carbon emissions, and saves energy compared with three single drivers. This paper develops a numerical urban simulation model to generate the general equilibrium effects of HOV lanes on urban spatial structure, energy use, and greenhouse gas emissions. The major findings are that while HOV lanes reduce traffic congestion and improve welfare, the fall in transportation cost leads to urban sprawl, which results in higher dwelling energy use and a larger carbon footprint. Overall, the HOV lane policy has little effect on total energy consumption and carbon emissions. This is another classic case of general equilibrium effects reversing the partial equilibrium effects of an urban policy. In contrast, a gasoline tax policy leads to less urban sprawl but is less effective at lowering energy consumption and carbon emissions. Imposing congestion tolls is a more effective tool at reducing traffic congestion, saving energy, and lowering carbon emissions.  相似文献   

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Tate Britain’s 2011 poster campaign boldly states ‘This is Britain’ and reproduces two works from the collection, one historic, one modern or contemporary, with a strip of Union Jack flag at the bottom. The design suggests a sense of coherence in the collection and in British art in general. This article questions the purpose of this supposed coherence, by questioning its art historical basis, and focusing on its consequences for the reception and perception of historic, modern and contemporary British art amongst Tate’s audience, both within and without the gallery space. The ideas presented draw on press commentary, visitor statistics and museum advertising practice and look at three points in Tate’s history: the Millbank gallery’s 1897 opening, the 2000 rebrand as Tate Britain and the current moment of this poster campaign. This article will argue that the transhistorical juxtapositions seen in these posters are a central tenet of how Tate builds its own identity and that of British art, and that these posters are used as a satellite exhibition space, but with a curatorial approach other to that of the gallery itself, so that the collection is displayed to attract the maximum potential audience.  相似文献   

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The revival of interest in the economic history of the Middle Ages after World War II has benefitted first to the study of the fourteenth and fifteenth century through the introduction to historical practice of the theories and methods of modern economic science. Secondly the discussion on the early medieval economy launched by Pirenne's posthumous book on Mohammed and Charlemange (1937) resulted in a more dynamic and economic interpretation of the Carolingian renaissance and in a vivid discussion about its end around the year one thousand. On the contrary the centuries between these two periods, i.e. the eleventh, twelfth and thirteenth centuries, although they witnessed the biggest demographic expansion since Neolithic times, the movement of the great clearances and the growth of big cities, have been neglected. The author argues for a renewed interest in the economic history of these centuries through a more integrated approach now that the quantitative approach has passed its zenith and interest in individual people is reviving, especially the common people and their behaviour and habits. Archeology, demography and anthropology can be used for this purpose in the context of a more integrated social history of the period, no longer dominated by historians of law and institutions.  相似文献   

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This article presents the results of ongoing instrumental neutron activation analyses (INAA) conducted on archaeological artifacts from the Formative period of northwestern Argentina (NWA). These studies are part of a wider archaeological project that seeks to understand the structure of the social landscape of the period by examining domestic and burial evidence from a wide range of villages across the area known as the southern Calchaquí valleys. Elemental data is discussed in the light of its potential contribution to reassess past social interaction strategies in the region.  相似文献   

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Data of high resolution for reconstructions of archaeological site formation processes can be obtained only by the use of precise excavation methods and comprehensive recovery techniques using fine-mesh water screening, followed by meticulous sorting and quantitative studies of all the small organic components from the screens. These methods are generally used at human occupation sites, but are not often employed at paleontological or mixed human-carnivore sites. At the site of Bois Roche, an Upper Pleistocene hyena den, we have used these meticulous recovery techniques in combination with absolute dating, geoarchaeological observations, taphonomic analyses, studies of microvertebrates and pollen analysis. Correlation of the site environmental data from pollen and microvertebrate assemblages with the vegetation record of a deep-sea core taken in the Bay of Biscay have allowed us to constrain the ages provided by ESR dating of bovid teeth and to reconstruct the physical environment of the site with a degree of confidence rarely achieved by the use of fossil remains from archaeological sites alone.  相似文献   

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The antiquity of dairying in regions considered to be marginal, such as the Western Isles of Scotland, has generated considerable debate. Complementary biomolecular methods are now available for identifying milk residues on ceramic vessels, which provides direct evidence for this practice in the past. A range of late Bronze Age and Iron Age ceramic cooking vessels were selected from two sites on South Uist, an island in the Outer Hebrides. The presence of milk proteins and lipids on a high proportion of potsherds confirms that these vessels were originally used to process dairy products. These data were integrated with evidence from the faunal remains and ethnographic accounts, in order to examine the wider significance and implications of dairy production in the Western Isles of Scotland during the first millennium BC. Further evidence from the pottery typologies and their depositional contexts were considered in order to comment on preparation and consumption practices.  相似文献   

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The paper addresses the growing scepticism around big data use in the context of smart cities. Big data is said to transform city governments into being more efficient, effective and evidence-based. However, critics point towards the limited capacity of government to overcome the siloed structure of data storage and manage the diverse stakeholders involved in setting up a data ecosystem. On the basis of this, the paper investigates the challenges city governments face when dealing with big data in the context of carbon emission reduction. Through the lens of the evidence-based policy and policy capacity literature, the cities of Copenhagen (Denmark), London (UK), Malmö (Sweden), Oxford (UK) and Vienna (Austria) are analysed. The cases reveal that the institutional complexity underlying big data integration limits local government capacity to set up data management structures that would allow further utilization of big data and that current solutions focus on local pilot sites and outsourcing of data analytics.  相似文献   

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Fragmented, co-mingled assemblages of human and animal bones are not uncommon in archaeological deposits, particularly in prehistoric contexts. It is suggested, firstly, that standard approaches to studying the human material do not lend themselves to the complete understanding of such contexts, secondly, that the application of some techniques more common to zooarchaeology are of particular value in understanding such human material, and, thirdly, that fully integrated, identical recording systems for both human and animal material allow for much greater understanding of the relative peri-mortem, depositional and post-depositional histories of human and animal remains in these complex deposits. Such a fully integrated method of recording, that permits direct comparison of the patterning in the human and animal assemblages, is outlined. These methods encompass issues of identification, ageing, quantification, fragmentation, bone fracture analysis, post-depositional taphonomy and evidence of human-induced butchery/trauma and other modifications. The approach is illustrated with examples drawn from the study of the bone deposits at the Middle Bronze Age ritual enclosure of Velim Skalka, Czech Republic.  相似文献   

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ABSTRACT

In recent years, there has been sustained critique of the conceptual and normative foundations of UK cultural policy – the paternalism of ‘excellence and access’ and the neoliberal logic of ‘creative industries’. Whilst these critiques are well established, there is little work offering alternative foundations. This paper makes a contribution to this task. It does so in three ways. Firstly, by identifying ‘cultural democracy’ as a key discourse offering a counter-formulation of what the aims of cultural policy could and should be, and analysing uses of this term, it highlights the need to more effectively conceptualize cultural opportunity. Secondly, drawing on research with one UK-based initiative, Get Creative, the paper identifies a particularly consequential aspect of cultural opportunity: its ecological nature. Thirdly, it shows that the capabilities approach to human development provides ideas with the potential to help build new conceptual and normative foundations for cultural policy. Proposing a distinctive account of cultural democracy characterized by systemic support for cultural capabilities, the paper concludes by indicating the implications this may have for research, policy and practice.  相似文献   

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This article examines questions of explanation in urban geography through consideration of the gentrification process. Particular attention is given to the problems of ‘structural’ analyses and the need to develop alternative political economy perspectives.  相似文献   

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We develop a model of land use conversion that incorporateslocal spillover effects among spatially distributed agents.The model is used to test the hypothesis that fragmented patternsof development in rural-urban fringe areas could be due to negativeexternalities that create a ‘repelling’ effect amongresidential land parcels. Identification of the hypothesizedinteraction effect is complicated by unobserved, spatially correlatedheterogeneity. Using an identification strategy that boundsthe interaction effect from above, we find empirical evidencethat is consistent with a theory of negative interactions amongrecently developed residential subdivisions in exurban Maryland.The result offers an alternative explanation for low densitysprawl to that which is frequently posited in the economicsliterature and one with potentially quite different efficiencyimplications.  相似文献   

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Abstract

Fishing industries should, at least in theory, be governed by the same sound business management principles-foresight, long-term future planning and sustained profitability – as any other industry. But, whenever or wherever man fished in Europe, salmon in the River Rhine, eel in Lake IJssel, brown shrimps sole and herring in the North Sea, greedy overfishing brought decline and near bankruptcy to the respective industries. In this interdisciplinary review, the author analyses this mismangement and concludes that the only hope is to follow sound scientific advice: give stocks of fish a chance to revive, if it is not already too late.  相似文献   

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ABSTRACT. In contrast to the abstract commitment to individual rights found in liberal critics of Bill 101 and the equally ahistorical approach of multicultural theorists like Bhikhu Parekh, this paper proposes that the particular historical circumstances surrounding the current minority status of different groups is crucial in evaluating the legitimacy of one cultural group to promote its cultural needs over another group within existing states. When the culture of a group residing within a particular state is secure in a neighbouring jurisdiction, the issue at stake is not necessarily the survival of a unique culture but the cultural needs of particular individuals. It does not follow that they have no legitimate claims against the state. However, in examining the language policies in Quebec and the newly independent Baltic states, it is argued that they are different in kind to the rights due to long‐standing communities struggling for linguistic survival.  相似文献   

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In this article, I present a critique of existing approaches to the distinctive harm of genocide and offer an alternative approach. I draw on Hannah Arendt’s unique conception of genocide, to suggest an ‘existential’ account of the harm of genocide. For Arendt, the distinctive loss in genocide was not a moral loss, strictly speaking, but rather an existential loss to humanity. By destroying a nation in whole or in part, genocide robs us of a variety of possible ways of experiencing and understanding the world. This approach, I argue, is original and valuable, and merits further consideration by anyone who is interested in the problem of genocide.  相似文献   

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Secondary pit deposits in historical occupations of Near Eastern mounds are usually regarded as uninteresting and are seldom analyzed. We used an integrated approach to study all the artifacts as well as the sediments in a pit at Tel Dor, on Israel's Carmel coast, dating to the 7th c. BCE – a period when the site served as an Assyrian administrative center. This pit was unusually large, had a peculiar ceramic assemblage, and many macroscopic metallurgical wastes. A detailed excavation and analysis revealed that the pit served intermittently as a waste disposal site for an iron smithy and for pottery that was presumably involved in maritime trading. On two occasions the area was also used for animal penning. Despite the obvious importance of the iron industry to the Neo-Assyrian Empire, actual workshops are rare in its archaeological record. Hence the new information regarding an Iron Age iron smithy in the southern Levant contributes to the study of this industry, and also to the history of Dor in this period.  相似文献   

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