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11.
A substantial indigenous tin-smelting industry arose in the Rooiberg valley of northern South Africa in the second millennium CE. This study concentrates upon tin-smelting slags and refractory ceramics from two archaeological sites that date between ca. 1650 CE and ca. 1850 CE. These were studied by optical and electron microscopy, wavelength-dispersive x-ray fluorescence (WD-XRF), inductively-coupled plasma mass spectrometry (ICP-MS), and electron microprobe (EMPA). The slags are predominantly glassy; high SnO and relatively low SiO2 contents indicate that tin is a major glass-forming element. Comparison of slag chemistries with the mineralogy of ore deposits and host rocks shows that alluvial cassiterite was used at one of the sites, while cassiterite from hard-rock mining was smelted at the other site. Since few preindustrial tin slags have been studied, we compare our findings to other published examples, mostly from southwest England.  相似文献   
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This article develops an integrated theory of state policy influence and responsiveness, then operationalizes this theory to account for variations in the strength and scope of state water pollution control and hazardous waste management programs. The analysis finds that economic, ideological, interest group, and political system characteristics act in concert to affect state policymaking, and that the influences behind policymaking vary systematically and predictably across policy areas within environmental protection.  相似文献   
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Evan Hazelett 《对极》2023,55(2):436-457
The current popularity of prison greening coincides with a reformist project in carceral administration centring the “rehabilitation” and “transformation” of incarcerated people, finding a natural home in the prison garden. In contrast to mainstream literatures that celebrate reform and foreground recidivism, I argue that the prison garden is exploited institutionally for the symbolic power of “green” to help resolve a crisis of legitimacy in prisons, and thereby capitalism, depoliticising the violence of incarceration while reproducing the symbolic conditions of racial capitalism through two different socioecological (prison) fixes. This proceeds in strikingly similar ways to urban sustainable development, which regularly depoliticises and extends racial and spatial injustice across the city. Yet, in its tensions and contradictions, the (un)sustainable prison garden remains a space where radical possibilities can emerge through moments of resistance, constituting various tenets of a precarious carceral food justice praxis.  相似文献   
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This article explores the practice of ‘virginity testing’ by British immigration officers in the late 1970s through the internal documents of the Home Office held at the National Archives in London. By analysing these documents, we argue that the ‘virginity testing’ controversy demonstrates the intersectionality of discrimination faced by migrant women from the Indian subcontinent attempting to enter Britain in the 1970s. Previous discussions of the practice have focused on either the dimension of ‘race’ or gender as the determining factor behind this invasive procedure, but this article shows that both dimensions are of equal importance in explaining why immigration officers undertook ‘testing’ for virginity during border control investigations. The emphasis within the immigration control system on preventing ‘bogus’ migration informed how immigration officers processed potential migrants and this framework of suspicion allowed the practice of ‘virginity testing’ to occur.  相似文献   
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The 2000 Presidential election was plagued by butterfly ballots and ‘pregnant chads’. Electronic voting systems, lacking verifiable paper trails that are subject to possible fraud, promise to wreak havoc with the 2004 Presidential election. There is a great diversity of systems of voting technology in the 50 states: from paper ballots, lever‐operated machines and punch cards to optical scanners and electronic systems. Associated with each technology is an estimated error rate. The underlying theory of this paper was set forth by William F. Ogburn in his famous book entitled Social Change, published in 1922. Dividing culture into material and non‐material elements, Ogburn argued that non‐material elements lag behind material elements. His explanation for this lag is that technology, which underlies material culture, changes at a faster rate than elements of non‐material culture. Obgurn did not contemplate the possibility of a reverse lag, viz., technology lagging behind non‐material culture. In analyzing the anomalous relationships between voting technology, political institutions and legal institutions, a striking instance of a ‘reverse cultural lag’ is discerned. To eliminate the phenomenon of the reverse cultural lag, there is a need for a federally‐funded program of a uniform, state‐of‐the‐art voting technology, plus an amended Help America Vote Act, to implement the innovations in the 3,114 counties. The complex problems reviewed in this paper point to a vexing question: how do we educate an electorate in a democratic society—such as the United States in the twenty‐first century—to be responsible for ensuring that periodically‐elected representatives implement the will of the people?  相似文献   
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Freshwater mussel shells from Middle and Late Holocene strata at an archaeological site in Mississippi, U.S.A., are examined for morphological and chemical differences that could be related to changing paleoenvironmental conditions. Although significant differences are noted, the different data sets provide contradictory or unclear results, suggesting that reliance upon single data sets is an unwarranted practice.  相似文献   
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环境考古     
本文以蒙塞拉特岛克雷镇(Clay County MS)亚布鲁(Yarborough)遗址为例对环境考古进行了介绍。作者指出。环境考古对于考古文化及其与自然环境之间的关系的研究有着重要意义。环境考古可以为生物学家、生态学家及土地管理者就如何保护自然资源提供有价值的信息。  相似文献   
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