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M. G. Bicchieri, ed. Hunters and Gatherers Today: A Socioeconomic Study of Eleven Such Cultures in the Twentieth Century. New York: Holt, Rinehart and Winston, 1972. xiv + 494 pp. Illustrations, maps, figures, and tables. $10.00.  相似文献   
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Historically the voices of young people have been excluded from research and debates about how to respond to environmental degradation and climate change. To include the perspectives of young people in the climate change and adaptation debate, we conducted a Photovoice and draw-and-write project with 29 school students in Ethiopia, through which students were given a platform to explore their social representations of the environment. Thematic analysis of our findings suggested that young people have a deep appreciation of the moral, health-related and economic importance of the environment, a commitment to preserving it and a sense of responsibility and agency in relation to contributing to this preservation. Students saw environmental degradation as reversible, through a combination of commitment by themselves, local government and the global community. We conclude by discussing ways our findings might best be taken up in school-level programmes to strengthen youths’ existing social networks for the consolidation of ‘green’ identities, action and activism.  相似文献   
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Established as a British imperial penal colony, Van Diemen’s Land received approximately 75,000 convicts before cessation of convict transportation in 1853. A vast network of penal stations and institutions were created to accommodate, employ, administer, and discipline these exiled felons. Popular interpretations of Australia’s convict past highlight dynamics of shame, avoidance and active obliteration that characterized Australia’s relationship to its recent convict past. Yet, closer examination of these colonial institutions suggests a far more ambivalent relationship with this “dark heritage,” evidenced by continuous tourism and visitation to these places of pain and shame from the mid-nineteenth century to the present.  相似文献   
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Quantitative, attribute-based analyses of stone tools (lithics) have been frequently used to facilitate large-scale comparative studies, attempt to mitigate problems of assemblage completeness and address interpretations of the co-occurrence of unrelated technological processes. However, a major barrier to the widespread acceptance of such methods has been the lack of quantified experiments that can be externally validated by theoretically distinct approaches in order to guide analysis and confidence in results. Given that quantitative, attribute-based studies now underpin several major interpretations of the archaeological record, the requirement to test the accuracy of such methods has become critical. In this paper, we test the utility of 31 commonly used flake attribute measurements for identifying discrete reduction trajectories through three refitted lithic sets from the Middle Palaeolithic open-air site of Le Pucheuil, in northern France. The experiment had three aims: (1) to determine which, if any, attribute measurements could be used to separate individual refitted sets, (2) to determine whether variability inherent in the assemblage was primarily driven by different reduction trajectories, as represented by the refitted sets, or other factors, and (3) to determine which multivariate tests were most suitable for these analyses. In order to test the sensitivity of the sample, we ran all analyses twice, the first time with all the available lithics pertaining to each refitted set and the second time with randomly generated 75 % subsamples of each set. All results revealed the consistent accuracy of 16 attribute measurements in quadratic and linear discriminant analyses, principal component analyses and dissimilarity matrices. These results therefore provide the first quantified attribute formula for comparative analyses of Levallois reduction methods and a basis from which further experiments testing core and retouch attributes may be conducted.  相似文献   
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This article examines the marginal position of artisanal miners in sub‐Saharan Africa, and considers how they are incorporated into mineral sector change in the context of institutional and legal integration. Taking the case of diamond and gold mining in Tanzania, the concept of social exclusion is used to explore the consequences of marginalization on people's access to mineral resources and ability to make a living from artisanal mining. Because existing inequalities and forms of discrimination are ignored by the Tanzanian state, the institutionalization of mineral titles conceals social and power relations that perpetuate highly unequal access to resources. The article highlights the complexity of these processes, and shows that while legal integration can benefit certain wealthier categories of people, who fit into the model of an ‘entrepreneurial small‐scale miner’, for others adverse incorporation contributes to socio‐economic dependence, exploitation and insecurity. For the issue of marginality to be addressed within integration processes, the existence of local forms of organization, institutions and relationships, which underpin inequalities and discrimination, need to be recognized.  相似文献   
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