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R.?N.?E.?BartonEmail author A.?Bouzouggar S.?N.?Collcutt R.?Gale T.?F.?G.?Higham L.?T.?Humphrey S.?Parfitt E.?Rhodes C.?B.?Stringer F.?Malek 《African Archaeological Review》2005,22(2):77-100
New work at Kehf el Hammar Cave provides the first well-dated palaeoenvironmental sequence for the Late Upper Palaeolithic in this region of the northwest Maghreb. The archaeological layers are dated via a combination of AMS radiocarbon and luminescence dating methods. The sequence contains charcoal-rich occupation layers with faunal, human and lithic finds. Local vegetational patterns are reconstructed on the basis of preliminary analysis of the charcoal evidence. Using standard calibration curves the AMS radiocarbon dates are compared with proxy evidence for climatic change from sea core records in the Alborán Sea. These appear to show that the Late Upper Palaeolithic occupation of the region coincides closely with Heinrich Event 1, a period marked by intense aridification and dating to ca. 16,700–17,250 calendar years ago.Les nouvelles recherches dans la grotte de Kehf el Hammar ont permis d’obtenir la première séquence paléoenevironnementale bien datée du Paléolithique supérieur tardif au Nord Ouest du Maghreb. En effet, les niveaux archéologiques ont été datés par le radiocarbone par accélérateur (AMS) et des méthodes radiométriques basées sur la luminescence. En revanche, les paléoenvironnements végétaux ont été partiellement reconstitués à base des premières analyses des charbons de bois. Les dates AMS calibrées ont été comparées aux données climatiques issues des carottes marines dans la mer Alborán. Ainsi, les occupations humaines du Paléolithique supérieur tardif dans la région ont sensiblement coïncidé avec l’événement climatique Heinrich 1. Celui-ci correspond à une période qui a été marquée par une aridification intense entre 16.700 et 17.250 ans (cal.). 相似文献
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The intention of this paper is to stimulate research on the demand and supply of child care services, an issue that has been largely neglected by geographers, although many of the problems involved lend themselves to geographical analysis. In addition, as the female labour force participation rate, the divorce rate, and the incidence of lone-parent families increase, so do the need for and importance of child care. We review the types of child care available in North America and provide statistics to demonstrate that the supply of child care falls short of demand. Furthermore, for the city of Waterloo, Ontario, through the use of 1981 and 1986 Census data we demonstrate that not only is the supply of licensed day care spaces insufficient to meet the demand, but also it is spatially arranged in a suboptimal way. Through population projections and net migration analyses we demonstrate that the demand for child care spaces in the near future is more likely to intensify in the periphery of the city, where the current supply is nonexistent. We thus argue that locational criteria should play a prominent role in the practice of licensing new day care centres. Cet article vise à encourager la recherche sur I'offre et la demande de services de garderie. Ce sujet a été largement négligé par les géographes měme si beaucoup des pro-blèmes rencontrés sont liés à des facteurs géographiques. De plus, la participation des femmes au marché du travail augmentant ainsi que le taux de divorce et le nombre de families monoparentales, les garderies deviennent de plus en plus nécessaires et importantes. Nous passons en revue les différents types de garderies qu'il est possible de trouver en Amérique du Nord et nous présentons des statistiques démontrant que le nombre actuel de garderies ne satisfait pas la demande. D'autre part, à I'aide des données du recensement canadien de 1981 et 1986 pour la ville de Waterloo, Ontario, nous prouvons que non seulement le nombre de places dans les garderies licenciées est insuffisant mais aussi que leur location géographique n'est pas optimale. À I'aide des études sur la population future et la migration nette, nous démontrons que la demande de garderies augmentera vraisemblablement à la périphérie de la ville où les garderies sont actuellement inexistantes. Par conséquent, nous estimons que le critère de localisation doit jouer un rǒle prédominant dans I'octroi des permis d'établissement de nouvelles garderies. 相似文献
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SUMMARY: This paper presents the results of recent archaeological research into the building known as Gladstone’s Land on Edinburgh’s Royal Mile. The aim of the research was to examine to what extent historical fabric had survived in light of extensive historical intervention. The building is a surviving example of Edinburgh’s Old Town urban architecture, which is characterized by tall structures with a shop front and densely occupied residential spaces. The paper presents evidence of the development of the building from the 16th century to its conservation in the 20th century. This development involved the replacement of formerly timber elements in stone and the creation of ornate painted interiors. The history of the building and the archaeological evidence embedded within it offer evidence of the life and changing architectural trends of Scotland’s capital. It also adds to our current understanding of heritage practice in the 20th century, raising issues of authenticity and the social construction of visitor-oriented heritage. 相似文献
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This paper presents new chronological data applied to the problem of providing a date for the construction of a prehistoric building, with a case study from the Old Scatness Broch, Shetland. The innovative methodology employed utilises the combination of radiocarbon and optically stimulated luminescence (OSL) dates with the archaeological information, which includes the stratigraphic relationships of sampled deposits, context information, and evidence relating to the formation of the deposit. This paper discusses the scientific validity of the dates produced, and the advantages that the methodology employed at this site offers for archaeological interpretation. The combined dating evidence suggests that the broch at Old Scatness is earlier than the conventionally accepted dates for broch construction. More broadly it shows the value of integration of the specialists at the planning stages of the excavation. The application of a Bayesian statistical model to the sequences of dates allowed investigation of the robustness of the dates within the stratigraphic sequences, as well as increasing the resolution of the resulting chronology. In addition, the value of utilising multiple dating techniques on the same deposit was demonstrated, as this allowed different dated events to be directly compared as well as issues relating to the formation of the sampled deposit. This in turn impacted on the chronological significance of the resulting dating evidence, and therefore the confidence that could be placed in the results. 相似文献
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R. A. W. Rhodes 《Australian journal of political science》2002,37(3):399-416
This article argues that political scientists should spend more time observing policy networks, using ethnographic tools to capture the meaning of everyday activities. The first section reviews briefly the literature on policy networks, arguing for an ethnographic approach. To show how individual actors construct networks, the second section looks at the experience of consumers, managers and permanent secretaries of living and working in networks. The final section comments on what the fieldwork tells us about both network theory and ethnographic methods. 相似文献
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A.G.L. Shaw Lloyd Ross George Caiger F.W.W. Rhodes 《Australian Journal of International Affairs》1948,2(4):252-259
THE SECOND WORLD WAR; Vol. 1: THE GATHERING STORM By Winston S. Churchill. (Cassell. pp. xv+640).
WORKSHOP OF SECURITY. By Paul Hasluck, 1948. (F. W. Cheshire, Melbourne and London. 121 pp.).
AUSTRALIA. Edited by C. Hartley Grattan. (University of California Press, 1947. 444 pages with index).
BURMESE ECONOMIC LIFE. By J. Russell Andrus. 1947 (Stanford University Press. $4.00). 相似文献