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Over the last few years the Nordic Laboratory for Thermoluminescence (TL) Dating has obtained TL dates for a considerable number of archaeological samples, ceramics, bricks, burnt clay and burnt stones from the Nordic countries. The majority of TL dates have been consistent and in agreement with other dating evidence. Discrepancies caused primarily by excessive short‐term fading of the latent TL signal were encountered in a few cases. A procedure for eliminating errors caused by short‐term fading is described. A brief discussion of the sources of error in TL dating is given. Finally, results obtained by TL are compared with those obtained by radiocarbon for a number of sites.  相似文献   
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Editorial     

In this article it is argued that men and women have been considered as "too old" in the labour market at an earlier age than people in general have been considered old, irrespectively of the actual biological life expectancy. The article discusses, first, farm servants in the old peasant society on the basis of the Swedish Hired Labour Acts, and, second, the migration restrictions imposed on elderly servants. The third point of discussion concerns age composition and wage by age of industrial workers in Finland at the turn of the 20th century, while the fourth point covers long-term unemployment in the 1930s and the introduction of old-age pension schemes. Some tentative explanations for the variation in the incidence of age discrimination over the past two centuries are suggested.  相似文献   
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