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31.
Here we show the results of two morpho-bathymetric surveys carried out on the underwater archaeological area of the Pozzuoli Bay (Naples, Italy). Such area is enclosed in the Campi Flegrei active volcanic complex, where bradyseism and recent volcanic activity strongly influenced the coastline shape over the last 2 Ka. The Digital Elevation Model (DTM) of the seafloor allowed to draw the main archaeological features of the Bay, that also include the military complex of Portus Iulius and the ancient thermal and villa complex of Baianus Lacus. The extraction of archaeological features from DTM was achieved thanks to the use of a GIS-derived tool based on the profile curvature algorithm. Thus, the Villa dei Pisoni (1st Century B.C.) and the thermal complex of Secca delle Fumose were investigated by using ultra-high resolution DTMs, that show the presence of Roman pilae for the protection of coastal buildings and also the inner planimetry of the Villa dei Pisoni complex. The observation of coastal engineering structures give also the opportunity to formulate some hypothesis on the evolution of morphology and of the sedimentary pattern of the area, while depth of archaeological remains allowed a rough computation of the rate of subsidence, resulted to be 2.55 (±0.5) mm/y for the Eastern sector (Pozzuoli) and 2.90 (±0.5) mm/y for the western (Baia).  相似文献   
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We test whether there is a link between the performance of universities, measured through a concept of efficiency, and the economic development of the regions in which they operate. Indicators of teaching, research, and third mission are considered as outputs. To handle endogeneity problems between the efficiency of universities and economic development, a system generalized method of moments and then an instrumental variable approach are used. Our findings reveal that the presence of efficient universities fosters local economic development. Knowledge spillovers occur to areas that are in close geographical proximity to efficient universities. Results are robust to different estimation strategies.  相似文献   
33.
Technological progress has widely been acknowledged as a key driver in the achievement of environmental sustainability, and a new concern has recently arisen for assessing the role of differences in regional innovation performances with respect to the pursuit of pollution targets. We investigate the impact of innovative activities on environmental efficiency at the regional level, adopting a spatial panel data approach to account for dependence between geographical observations and to get deeper insights into spatial knowledge spillovers arising from agglomeration economies. The spatial panel analysis covers 103 Italian provinces (equivalent to NUTS3 regions) on four major air pollutants (i.e., CO2, CH4, NMVOC, CO) over the 1995–2010 period. Our findings show that the state of local technology development, proxied by patents, has a positive impact on GDP emission efficiency and that its magnitude is higher for more localized pollutants as a result of larger spillover effects. Finally, to analyze the Italian North-South dualism of emission levels of pollutants, we offer a spillover effect study to emphasize the remarkable difference among effects in the territory. This calls for closer attention to the local relevance of the pollution damage when environmental impact of innovation strategies is to be evaluated.  相似文献   
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In the first half of the 19th century some German classical scholars tried to understand the pagan religions of antiquity as genuine religions, containing an intuition of the truth. F. Creuzer regarded popular beliefs and cults of all ancient peoples as a “religion of the imagination”;, a “pantheism of the imagination”;, but thought that, besides that popular religion, there existed a much deeper, esoteric pantheism, which was passed on from one generation to another and from one country to another by priests‐sages. In Greece, according to him, popular religion became more superficial than anywhere else; its religious content was to a large extent substituted by poetic and artistic beauty.  相似文献   
36.
The main aim of this paper is to test the hypothesis on kinship relations (affinity/marriage vs descent/consanguinity, and matrilocality) expressed in the funerary record of the El Argar Bronze Age society (South-east Iberia, 2200–1550 cal BCE), taking into account the absolute chronological dimension of double adult tombs. A set of 23 double tombs having radiocarbon dates for both skeletons were selected, and radiocarbon calibration and Bayesian probability analysis was conducted. The results support the ‘descent’ hypothesis, since for most of the cases the chronological distance between individuals buried together was larger than two decades. Finally, several guidelines for future research are suggested in order to overcome shortages in current chronological and archaeological data.  相似文献   
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Since all long-distance trade in the Roman world travelled by water, Roman harbour design and construction have special importance. Harbour excavation must be supplemented by analysis of the components of the hydraulic concrete, structural analysis of the cementing materials, and consideration of the design of the wooden formwork. The authors have begun collecting large cores from concrete blocks at Roman harbours and other maritime structures, analysing the materials used, the method of placement, and the structural characteristics of the resulting concrete. These data have provided new information on the engineering properties of Roman concrete, the process of funding and execution, and the trade in the volcanic ash which was the crucial component of hydraulic concrete.
© 2004 The Nautical Archaeology Society  相似文献   
38.
Natural, technical and social factors led to the use of a wide range of rocks for the production of macrolithic artifacts during the later prehistory. In the case of some artifact types, such as the grinding stones, rocks with very different petrographic qualities appear. Analysis of the material behavior, as developed by material sciences, provides a tool which allows the translation of these petrographic characteristics into mechanical properties. Experiments with a group of rocks subjected to different forms of abrasion in industrial machines allow an evaluation of the adjustment between the mechanical properties of the rock and the functions for which they were chosen by prehistoric societies. Finally, the understanding of the mechanical properties of the raw materials together with their forms of exploitation, distribution and use allows the designation of social and economic meaning to the production systems linked to the macrolithic tools.  相似文献   
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This paper argues that indigenous peoples' responses to climate change are better understood in relation to emerging notions of citizenship than to climate change crisis narratives. The latter, like development narratives, are often used to license the intervention of experts in debates about resource management and conservation. Dominant climate change narratives about the Arctic emphasise the power of global climate systems to threaten northern communities by situating them as being intrinsically ‘at risk’. These narratives envisage Arctic citizenship within very narrow parameters which have largely masked the voices of northern citizens. Definitions of ecosystem resilience, while providing a framework for comparing disparate cultural and ecological contexts, are predicated on avoiding systemic collapse. It is argued that such definitions heighten the sense of risk implicit in climate change impacts. This may ultimately impede the development of different aspects of civic participation by northern citizens with climate change policy opportunities. Policy responses across a range of diverse geographical contexts require new narratives that put communities back into the calculus of risk and decision-making. One way to be more critical about the language of climate change narratives is to evaluate the extent to which they can account for, and mitigate, growing inequalities of power and wealth. Studies in the historical reception of science narratives are proposed as a better approach for making grounded comparisons of the discursive strategies with which climate change narratives are made to work. This also helps to bridge discussions of climate change across regions like the Arctic and Africa, which share much in common, but are too often studied in isolation.  相似文献   
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