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John R. Laurie 《Alcheringa: An Australasian Journal of Paleontology》2013,37(4):317-324
The types and other specimens of Agnostus fallax Linnarsson 1869 are examined and reinterpreted. It is shown that the application of this specific name to many specimens from around the world is largely in error. The species is considered sufficiently different from the type species of Peronopsis, P. integra (Beyrich, 1845) to warrant erection of a new genus Axagnostus with A. fallax as the type species. 相似文献
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Applications of integrated geophysical method in archaeological surveys of the ancient Shu ruins 总被引:1,自引:0,他引:1
Wenfeng Zheng Xiaolu Li Nina Lam Xuben Wang Shan Liu Xinyu Yu Zhangli Sun Jinmei Yao 《Journal of archaeological science》2013
The Jinsha site is one set of excavated ruins of the ancient Shu state, late Neolithic, early Bronze Age. The archaeological survey of the site is especially important for study of Shu culture, because there is hardly any written record of this period. As technology progresses, more and more advanced techniques and equipment have been used to conduct archaeological surveys. In this study, four nondestructive methods of geophysical detection were used to locate ancient relics at the site. The validity of these different types of archaeological detection methods (method of high-density resistivity, induced polarization, multi-frequency electromagnetic, ground-penetrating radar and so on) and techniques were analyzed. And a multi-scale, multi-method detection system to non-destructive detection of cultural relics was established. 相似文献
106.
Lacunarity is related to the spatial distribution of gap or hole sizes. For low lacunarity, all gap sizes are the same and geometric objects are deemed homogeneous; conversely, for high lacunarity, gap sizes are variable and objects are therefore heterogeneous. Textures that are homogeneous at small scales can be quite heterogeneous at large scales and vice versa, and hence, lacunarity can be considered a scale-dependent measure of heterogeneity or texture. In this article, we use a lacunarity method based on a differential box counting approach to identify urban land-use and land-cover classes from satellite sensor data. Our methodology focuses on two different gliding box methods to compute lacunarity values and demonstrate a mirror extension approach for a local moving window. The extension approach overcomes, or at least minimizes, the boundary problem. The results from our study suggest that the overlapping box approach is more effective than the skipping box approach, but that there is no significant difference between window sizes. Our work represents a contribution to not only advances in textural and spatial metrics as used in remote-sensing pattern interpretation but also for broadening understanding of the computational geometry of nonlinear shape models of which lacunarity is the reciprocal of fractal theory. 相似文献
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We applied correlogram analysis to county-level AIDS data of four regions—the Northeast (Delaware, the District of Columbia, Maryland, New Jersey, New York, and Pennsylvania), California, Florida, and Louisiana—for the period 1982–1990 to characterize the spatial-temporal spread of the AIDS epidemic. Correlograms computed from yearly incidence rates differ substantially among these four regions, revealing regional differences in the spatial patterns and intensity of AIDS spread. A general trend of increasing spread to rural America, however, can still be detected. Contagious spread was predominant in the Northeast throughout the nine-year period, whereas California was dominated by hierarchical spread through time. The spatial-temporal changes of AIDS incidence patterns were most drastic in Florida, where the correlograms show hierarchical spread in the early years and then contagious spread in the later years. As a representative region for most other states in the United States, Louisiana has low spatial autocorrelation and no definite spatial pattern of spread. Grouping data into three-year periods for states with low yearly incidence rates such as Louisiana should help identify the dominant trends for these states. The correlogram results could provide useful insights into the specification of spatial models for AIDS forecasting. 相似文献
109.
Diane Richardson Meena Poudel Nina Laurie 《Gender, place and culture : a journal of feminist geography》2009,16(3):259-278
Sexual trafficking is a priority issue for many governments and has increasingly become a focus for debate within the academy. Despite this, many aspects of sexual trafficking remain poorly understood. In this article we focus on an area that has received scant attention in the literature: the situation of trafficked women when they return home and, specifically, the livelihood opportunities available to them as they experience differing notions of citizenship. In addition to the fact that there has been very little attempt to document poverty alleviation strategies post-trafficking, within the mainstream development literature little attention has also been given to questions of sexuality and how they relate to development and poverty reduction strategies. The aim of this article, therefore, is to seek to highlight a new research agenda and to develop an interdisciplinary framework to understand what we have termed ‘the sexual politics of poverty’. Bringing together distinct literatures on sexual citizenship and sustainable livelihoods we develop our analysis of these themes through a focus on the livelihood opportunities and strategies of returnee trafficked women in South Asia, drawing on policy analysis at national and regional levels and qualitative research carried out in Nepal. In particular, the Nepal case study highlights problems with skills training for returnee women and examines the relationship between marriage and sustainable livelihood opportunities. 相似文献
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Nina Hall 《Australian journal of political science》2009,44(2):309-325
Timor-Leste's struggle for independence has won it high international profile. Yet there is little known internationally about the role women played in the resistance movement and how independence has affected them. Has democratisation brought women greater freedom and rights? This article argues that some East Timorese women benefited from the construction of a new democratic state by mobilising and unifying in the political space created post-1999. East Timorese women's NGOs allied with international organisations and NGOs to form a campaign against domestic violence. This article takes a constructivist approach, analysing how international norms of women's rights and gender equality have: (1) emerged, (2) reached a tipping point, (3) cascaded and (4) been internalised in a post-conflict, democratising context. 相似文献