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1.
The analysis of environmental archives from across the world has demonstrated that human perturbation of the geochemical cycles of trace metals and the resultant atmospheric metal contamination date back, at least, several millennia. However, an understanding of the local processes and timing of changes in trace metal deposition is also essential for a proper global interpretation. The Iberian Peninsula was a major mining area since prehistoric times and the analysis of environmental archives provides a good opportunity to improve our understanding of the history of mining and metallurgy in Europe. We present the results from three 14C dated peat cores from the Xistral Mountains (NW Iberia). These records are used to reconstruct past atmospheric deposition of Ni, Zn, As, and Cd. The chronology of the changes in concentrations and metal accumulation rates was found to be concordant in the three bogs, and showed great similarity to total Pb, Hg, and Pb isotope ratios as determined in previous investigations. They present a consistent view of changes in atmospheric pollution and the importance of metals in the development of human societies, especially: i) the first evidence of atmospheric metal pollution 3400 years ago, which is simultaneous with the expansion of the Atlantic Bronze Koine; ii) a pollution event between 2350 and 2150 years ago, associated to the development of so-called Celtic culture (local Late Iron Age); iii) a dramatic increase of metal fluxes in Roman times; iv) a severe and rapid increase in the last 250 years corresponding to the beginning of the industrial revolution in Europe, reflecting the emergence of the new dominant sources of pollution, and v) the increase of long range atmospheric transport of pollutants. Our data suggest that all detected ancient (until ca. 1450 cal BP) periods of enhanced Ni, Zn, As, and Cd accumulation may have had an anthropogenic origin, related to the onset and development of mining and metallurgy.  相似文献   
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Through isotopic investigations of directly dated human remains recovered from the Eton College Rowing Course, we examine changes in diet from the Neolithic to the Roman period. The human isotope signatures point to a diet based on C3 terrestrial resources. A significant correlation is visible between human ??13C values and time, but no such trend is observed in ??15N. The animal isotope data from Eton are unevenly distributed, making it difficult to determine if the human values mirror the animal values. To assess whether the results from Eton are typical, we compare our results to isotope data from other British sites dating from the Neolithic to the Roman period. Across this time period, we see a strong correlation between the mean ??15N of the humans and that of the main domesticated herbivores, with an offset of ??4.5?? between the two. Thus, the changes in the human isotope values are likely linked to changes in the isotopic signatures of the herbivores rather than changes in the protein composition of human diets. By contrast, no clear temporal relationship is observed between the mean ??13C of the humans and that of the main domesticated herbivores, with an offset of ??1.4?? between the two. There is, however, a weak correlation observed between the mean ??13C of the humans and that of the cattle, which may account for some of the variation in human ??13C values between sites. The absence of a strong correlation between mean human and animal ??13C suggests that the primary factor influencing human ??13C values between sites is dietary composition. The lack of co-variation between ??13C and ??15N is likely to reflect the different representation of dietary macronutrients. Given that the nitrogen results suggest that the animal protein consumption patterns are similar across sites, the human ??13C variation between sites is likely to reflect the plant portion of the diet.  相似文献   
3.
Harvesting different species as foods or raw materials calls for differing skills depending on the species being harvested and the circumstances under which they are being taken. In some situations and for some species, the tactics used are mainly behavioral—that is, people adjust, or adapt, their own actions to fit the behavior and circumstances of the species they are taking. Under other circumstances and for other species, the skills and tactics used may call for greater environmental preparation or manipulation. Therefore, instead of trying to distinguish people today and in the past as either foragers or farmers, it makes sense to define human subsistence behavior as an interactive matrix of species and harvesting tactics, that is, as a provisions spreadsheet.  相似文献   
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The aim of this paper is to suggest an analytical framework through which the complex question of hospital closure and local protest can be further explored. The significance of this area of study lies with the extraordinary events that surrounded a campaign to save the Kidderminster General Hospital from downsizing. Whilst the hospital was not saved, the local campaign committee organizing the protest took their fight into the political arena and were successful in gaining a parliamentary voice in the 2001 general elections. Such an achievement has had considerable political implications, however, the question asked here is how might we begin to interpret the events that took place. To this end, the paper draws on current geographical literature in an attempt to construct a framework that accounts for both national policy debates and the local context within which such campaigns emerge.  相似文献   
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This paper reports on the findings of focus group discussions designed to explore the learning and skills-based needs of out-of-school youth in the Philippines, particularly addressing their reasons for leaving school, their current activities and employment, how they acquire skills and knowledge, what they want to learn about, their use of Information and Communication Technologies, and their future employment plans. It was undertaken in the context of the development of a programme of e-learning through ICT Centres to be delivered in support of the country's 5 million out-of-school youth.  相似文献   
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Abstract. This essay attempts to place the contributions of the sociologist Kazimierz Kelles-Krauz (1872–1905) within the history of the scholarship of nationalism. Though absent from present scholarly literature on the question, Kelles-Krauz's contribution to the study of nationalism was outstanding. The article advances three arguments: that Kelles-Krauz was among the first to treat modem nationalism as an object of serious study, that his approach was more typical of our day than his, and that his arguments anticipated many of the major positions of today's scholars. In order to defend the first claim, the article briefly considers the contributions of scholars who preceded Kelles-Krauz. In order to defend the second and third claims, the article briefly characterises Kelles-Krauz's sociological method and presents his answers to some of the central questions of today's scholarly literature on nationalism.  相似文献   
10.
To date, there has not been a sustained attempt to bring the philosophy of the Third Way into foreign policy. In order to fill this gap, the authors turn to the idea of 'good international citizenship' pioneered by the former Australian Foreign Minister, Gareth Evans. It is argued that good international citizenship provides a conceptual rationale for an ethical foreign policy as well as a standard for judging the priority accorded to the goals of security, trade and human rights. Through an examination of a number of cases, the authors conclude that Britain's record as a good international citizen has been uneven and argue—against Labour's critics—that the government has set a new course for Britain's way in the world. More importantly, it has encouraged a public debate about the meaning and priority accorded to the promotion of different values.  相似文献   
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