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41.
We report on the results of an experiment aimed at determining the effects of experience/aptitude, lithic reduction type (biface v. core), and flake size cut-offs on different rates of success in refitting studies. We found that experience matters, but that there can be large differences in aptitude for refitting; that cores are easier to refit than bifaces; and that the effort of refitting increases considerably for flakes smaller than 5–6 g. We propose the use of an asymptotic equation fit to a cumulative curve as a way to determine when a study has reached the point of diminishing returns for a given flake size cut-off, and to help determine differences in aptitude for refitting.  相似文献   
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Australian electoral systems have a history of malapportionment, designed to give added voting weight to rural and remote areas. However, by 2000, all Australian jurisdictions except Western Australia had adopted voting equality within specified tolerances. This paper provides a brief analysis of the Gallop Labor government's efforts to reform the Western Australian system, drawing primarily on interviews with key players involved in the debates, including parliamentary members of the political parties involved. Quotations in this paper are drawn from these interviews, which were conducted in August 2004.  相似文献   
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Abstract. Workers’ compensation reforms have been on the table in virtually every state over the last several years, and many states have launched comprehensive reforms. At least nine states undertook major reforms of their workers’ compensation systems in 2004 alone, and the reforms were driven largely by claims that higher workers’ compensation costs are driving away businesses and the employment that comes with them. This paper examines the relationship between workers’ compensation costs, as proxied by benefits/earnings, and employment across U.S. states and the District of Columbia from 1976 to 2000. Workers’ compensation costs are found to have a statistically significant negative impact on employment and wages, but the elasticities are very small, suggesting that workers’ compensation is not a likely cause of jobs woes in most states. Unemployment insurance appears to have an effect of similar magnitude. Medical cost inflation is found to be a significant factor in explaining movements in workers’ compensation costs over time.  相似文献   
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This paper assesses the importance of a range of social structural influences on Australian electoral behaviour, with specific reference to ethnicity and occupational class. The analysis is conducted on two levels. Firstly, aggregate level data is employed, using the 1976 census matched by federal electorate to the 1977 election results. Techniques from factorial ecology are used to construct conceptually unambiguous measures of constituency characteristics, and these are related to voting behaviour using multivariate techniques. Secondly, individual level survey data collected in 1979 are used to confirm the importance of the socioeconomic cleavage and urban‐rural divisions. They also indicate that ethnicity has an appreciable influence on electoral behaviour among those born in Mediterranean countries. Northern Europeans (mainly British) prove to be no different in their electoral behaviour than native‐born Australians, while the results for Eastern Europeans are inconclusive.  相似文献   
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Changes brought about by globalization such as the growth of the travel industry and increasing interconnectivity between places have opened up new lifestyle options for Canadian retirees. Commonly called “snowbirds,” thousands of Canadian retirees choose to spend their winters in warm destinations outside Canada, with most going to localities in the southern United States. Most snowbirds visit the same place every year and spend many years going back and forth between Canada and their chosen winter destination. Drawing on insights from both life-course theory and the new mobilities paradigm, this paper considers how the cross-border snowbird phenomenon links to wider processes related to aging. Qualitative interviews were conducted with retirees wintering in various communities in southern Florida. The findings of the study highlight the importance of understanding both aging and mobility as processes that intersect in variable ways over time to influence new geographies of aging.  相似文献   
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