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Chemical analysis, optical absorption spectroscopy and mathematical modelling of high temperature viscosity have been carried out on five 1st–2nd century AD Roman blue-green bottle glass fragments from Coppergate, York. Modelled viscosities indicate remarkable consistency within the sample set studied and support the suggestion that temperatures of ∼1000–1150 °C were required to remelt these glasses and to provide suitable viscosities for forming articles. Iron redox ratios (Fe2+/ΣFe), analysed SO3 contents and the absence of characteristic Fe3+–S2− amber absorption bands suggest that melting conditions for all studied glasses were mildly, rather than strongly, reducing (estimated pO2 ≈ 10−1–10−6 bar). These furnace conditions are consistent with the effects of combustion gases and carbonaceous matter contained in the raw materials. 相似文献
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This essay re-examines the Daily Mail's campaign in 19278against the Baldwin government's decision to equalize the franchiseby lowering the female voting age to 21. It argues that theMail's hostility to the flapper vote was largelya product of the passionate anti-socialism of its proprietor,Lord Rothermere, and not, as has been suggested, the culminationof a decade of anti-feminism. Rothermere was convinced thatyoung women would vote overwhelmingly for the Labour Party andentrench it in government for a generation. But attacks on theflapper in 19278 were generally confinedto the paper's editorial and political columns, and contrastedwith the much more positive portrayal of young women that hadbeen typical of the Mail's output since 1918. The example ofthe Daily Express, which supported franchise equalization, isused to demonstrate that it was Rothermere's idiosyncratic politicalpinions, rather than the typical anti-feminismof the Conservative press, that explained the Mail's stance.The article concludes that the gender discourse of interwarnewspapers has been unfairly stereotyped by historians, andthat media hostility to young, unmarried women in these yearshas been exaggerated. 相似文献
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In this paper we explore the potentially inclusionary and exclusionary implications of Information Communication Technologies (ICT) for children through an examination of ICT policies and practices within UK schools. We begin by outlining the rhetoric of inclusion evident in UK government policy and by reflecting on how these discourses are mobilised in three case-study schools. We go on to consider issues of social exclusion, demonstrating that both material and social factors can prevent access to appropriate computer technology. In particular, we emphasise the importance of the way that children negotiate the meanings and use of computers through their everyday practices within the classroom. The paper concludes by arguing that only when we recognise that children's use of computers is about not only the broad-scale distribution of resources but also children's everyday social relations can we hope to institute policies that promote an inclusive 'information society'. 相似文献
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