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101.
J. E. ORTIZ T. TORRES M. R. GONZÁLEZ‐MORALES J. ABAD I. ARRIBAS F. J. FORTEA F. GARCÍA‐BELENGUER I. GUTIÉRREZ‐ZUGASTI 《Archaeometry》2009,51(1):123-139
Here, we provide the first report on the ages of 54 archaeological levels in 38 caves in northern Spain by means of the aspartic acid d /l ratio measurements in Patella shells, with good results. For this purpose, we developed an age calculation algorithm that allows the numerical dating of deposits from other archaeological localities in the area and nearby regions. We conclude that the sample size—that is, the number of shells analysed within a single level—reinforces the importance of analysing numerous specimens per horizon and the understanding of the time‐averaging concept. The ultrastructure of different species of Patella shells was also studied, showing calcite in their apexes and aragonite at their margins. 相似文献
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Éva Tessza Udvarhelyi 《对极》2014,46(3):816-834
In recent years, the intensity of the criminalization of homelessness in Hungary gave rise to a veritable tug‐of‐war between the ruling party and grassroots activists. In fact, today it is the only country in the world where the possibility of penalizing homelessness is encoded in the constitution itself. In this paper, I first provide an overview of the rise of homelessness since the late 1980s. Then, I go on to examine changing public and political attitudes towards homelessness in post‐socialist Hungary and place the growing trend towards penalization in the larger context of an emerging criminal paradigm. After examining the recent authoritarian turn, I argue that the radical intensification of criminalization is a strategy not only to secure political dominance, but also to obscure the failure of the state to address the social, political and economic contradictions that became salient at the time of the regime change. 相似文献
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C. BOBÉE S. HUON J.‐L. GUENDON J. SALOMON C. GÉBARA J.‐M. MICHEL M. REGERT 《Archaeometry》2011,53(2):241-260
Urban water was supplied to the Roman city of Forum Julii (Fréjus, southeastern France) for at least 200 years by a 39.4 km long aqueduct, operating in ad 50. Two perennial springs were successively collected, the Foux and the Siagnole, located at the outlet of Triassic and Jurassic karstic reservoirs, respectively. In this study, we performed high‐resolution PIXE (Particle‐Induced X‐ray Emission) measurements of Ca, Si, Fe and Sr concentrations on selected cross‐sections of laminated carbonate sampled along the sidewalls, before and after the connection of the two collection channels. Seasonal variations of water composition, suspended sediment load and discharge are recorded by alternating clear and dark layers, and can be traced by their Sr and Fe contents. On the basis of an annual bimodal high‐discharge regime for the two karstic reservoirs, the concentration measurements allow the derivation of a chronological record (117.5 years) of water supply and maintenance activities for a part of the operational period of the aqueduct. The water level in the channel was mainly controlled by the extent of carbonate deposition and by dredging, repair and maintenance operations rather than by the past hydrological regime of the two springs. 相似文献
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艾堅訥 《Revue de synthèse / Centre international de synthèse》2011,132(1):13-31
Working from a body of Tuscan commission contracts from the 14(th) and 15(th) centuries, this article shows how painting was the object of concrete evaluative practices among professional painters before becoming the subject of discussion for scholars and humanists. This study rests on the legal and economic analysis of clauses of expertise by which painters and commissioners submitted the work to other painters in order to guarantee the proper execution of the contract, thus constituting an essential evaluative measure for the economy of painting. 相似文献
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STÉPHANE HÉRITIER 《The Canadian geographer》2011,55(2):158-179
Canadian national parks are well‐known for protecting natural areas dedicated to ‘the benefit and the enjoyment of the Canadian people’. The history of national parks illustrates the evolution of a concept of nature from functional conservation, such as tourism, to an environmental conception, based on ecosystem protection and biodiversity preservation. Banff, Waterton Lakes and Wood Buffalo National Parks in Alberta, and Kootenay National Park in British Columbia (four of the fourteen parks established before 1930, the year the National Parks Act was passed) have been chosen for this study in order to understand how national parks have dealt with local communities since the beginning of the national park movement, and how these relationships have changed during the last forty years. Inclusion of local communities and collaborative management processes have been well developed in northern Canadian parks since the mid‐eighties. These practices have been considered successful in this region, but the situation is very different in the southern parks, especially those that were created before 1930. However, things have changed since Aboriginal culture and rights have been recognized in judgements rendered by the Supreme Court of Canada and by the Canadian Constitution. In the four parks chosen for this study, involvement of local communities and the development of their participation have been slow. Round tables and participation in the creation of interpretation sites and exhibits of Aboriginal history can be considered a step toward further cooperation. 相似文献
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