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31.
In the study area (the Upper Rhine Lowlands and the southern Black Forest), colluvial and alluvial sediments could be dated with the aid of 14C analysis, archaeological finds, pollen analysis and stratigraphic assessments. On the basis of these dated deposits, six different maps have been produced showing the distribution of the colluvial and alluvial sediments for the corresponding archaeological cultural periods. For each of these periods, the intensity of human impact on the environment has been estimated in relation to climatic conditions and different economic activities; for example, woodland clearance and mining activities.  相似文献   
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The theory of the marginal consumer holds that a subset of better informed consumers can create a globally more efficient market through their purchase decisions. In the market for education created by recent school choice initiatives, these "market mavens" are essential to the successful functioning of the choice system given the empirically documented low quantity and quality of information possessed by the average consumer. Little is known, however, about the differences between how marginal consumers and average consumers of education search for information and make decisions about their children's schooling.  相似文献   
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Jack Goody and S. J. Tambiah. Bridewealth and Dowry. Cambridge Papers in Social Anthropology 7. Cambridge, England: Cambridge University Press, 1973. ix + 169 pp. Tables, figures, notes, and bibliography. $11.50.  相似文献   
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The purpose of this article is to analyze the interaction between different interpretations of Islamic jurisprudence in Iran and state law. It focuses on the public legal discourse about the new Family Draft Law in 2007–08, especially Article 23 regulating polygamous marriages and removing necessity for the first wife's permission. The participants in this public legal debate, which took place on the internet and in the media, were civil society organizations, especially women's organizations, the Shiite clergy, and state representatives. The article argues that even in a non-democratic, theocratic state such as the Islamic Republic of Iran, public discourse promoted by the named actors can challenge and influence state legislation. The removal of Article 23 from the Draft confirms this argument, but in the law of 2013 the requirement for the first wife's permission is not found. By looking at the arguments brought forward in the public discourse, the article demonstrates that the arguments are mainly “Islamic,” and none refers to international human rights, as this seems to be a kind of taboo in the political discourse.  相似文献   
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