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61.
Sean H. Reid 《African Archaeological Review》2016,33(2):163-182
This article discusses how archaeological sites in Sierra Leone, and by extension much of West Africa, can be identified through vegetation patterns (vegetation signatures) detectable in very high-resolution (VHR) multispectral satellite imagery. Settlement sites typically have a differing pattern of vegetation from the surrounding landscape, including concentrations of very large trees with sociocultural and historical significance: cotton (Ceiba pentandra) and baobab (Adansonia digitata). These features are conspicuous elements of the landscape both from the ground and in aerial imagery. Two complementary methods of using VHR multispectral satellite imagery are discussed in this paper: visual interpretation and semi-automated subpixel classification. These techniques are aiding ongoing archaeological survey of the Sierra Leone River Estuary. The impact of recently renewed industrial activity at a site of probable archaeological significance is also assessed through visually interpreted VHR satellite imagery. 相似文献
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The impact of broadband and other infrastructure on the location of new business establishments 下载免费PDF全文
Daire McCoy Sean Lyons Edgar Morgenroth Donal Palcic Leonie Allen 《Journal of regional science》2018,58(3):509-534
This paper analyzes the impact of broadband infrastructure, along with a range of other local characteristics such as motorways and other infrastructure, availability of human capital, and access to third‐level educational facilities, on the location of new business establishments. The sample period spans the introduction and recent history of broadband in Ireland. The results indicate that the availability of broadband infrastructure is a significant determinant, but its effects may be mediated by the presence of sufficiently high human capital in an area. 相似文献
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Sean Andrew Wempe 《国际历史评论》2018,40(1):177-205
The Locarno Conference, held on 5–16 October 1925, represented the culmination of nearly two years of diplomatic communication between the foreign offices of Germany, Britain, and France. The conference was an attempt to normalize relations between the former Allied powers and Germany's new Weimar Republic and more tightly bind Germany's politics and economy to Western Europe. Colonial German lobbies hoped that the Locarno talks heralded the return of empire and an end to Germany's banishment from the work of the ‘civilizing mission’ and the humiliating experience of being a ‘postcolonial state in a still colonial world’. Public scrutiny from false press reports about the restoration of the German colonies emanating from Germany, France, Britain and its colonies and dominions, and even the United States complicated matters for Locarno delegates by forcing discussion of off-agenda topics. This article interrogates how the Colonial German lobby influenced the Locarno Conference through activity in the international public sphere, how they managed a partial victory in the wake of Locarno, and more importantly, the Colonial German lobby learned new and better strategies for playing properly to public opinion and international bureaucracies. 相似文献
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David K. Wright Kevin P. McGowan Christopher Flynn Sean Stretton Marcy Prchal Susan Brannock-Gaul 《International Journal of Historical Archaeology》2014,18(4):726-751
Agricultural journals were in wide circulation in the nineteenth century, and they were means of transmitting information about agrarian technologies and techniques to American Frontier-Phase farmers. This article explores the environmental and cultural context for the addition of a drainage feature to a nineteenth-century farmstead in Illinois (called the Bond Farm site), which preceded the site’s eventual abandonment when rainfall reached anomalously high levels. Geoarchaeological and paleoclimatologic datasets are presented as evidence of high rainfall, and the period of site settlement is constrained by both artifact and documentary sources. High maintenance costs associated with occupying the structure apparently exceeded the value of remaining, so the site was abandoned. As archaeologists grapple with how to determine causation in site occupation and abandonment, we advocate a multidisciplinary research design in historical archaeology that includes geoarchaeological analyses, which can be useful in building a microscale settlement reconstruction. 相似文献
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Daniel Rosendahl Sean Ulm Helene Tomkins Lynley Wallis Paul Memmott 《The Journal of Island and Coastal Archaeology》2014,9(2):253-267
ABSTRACTDramatic changes in shellfishing behaviors occur across northern Australia during the late Holocene, marked most conspicuously by the cessation of large shell mound construction in some areas, and the reorganization of shellfishing behaviors towards more intensive production in the last 1,000 years. Excavations reveal rapid and widespread changes within coastal sites, an increasing diversification in overall subsistence resources, and patterns of increase in site establishment and use. Some of these changes have been argued to be associated with increasing climate variability and a trend towards increasing aridity during the late Holocene, thought to have transformed coastal ecosystems and mollusc availability. However, when these hypotheses are tested at the local level, more nuanced patterns of human-environment interaction emerge, which call into question interpretations based on broad-scale climate records. We suggest that disjunctions in the timing of the cessation of shell mound construction noted between the west and east Gulf of Carpentaria may be related, at least in part, to the timing and intensity of external cultural contacts with Macassan seafarers, associated with reorganization of mobility and production strategies, rather than as yet undemonstrated environmental changes impacting on shellfish availability. 相似文献