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"The research is based on a study carried out between 1989 and 1991 in the three rural communities in the state of Morelos [Mexico] that included a socio-demographic survey and interviews. The methodological goal of the authors is to view nuptiality from demographic and anthropological standpoints.... The authors seek to pinpoint the elements that account for changes that have taken place in nuptiality, as well as to identify the impact of these changes on [descendants]." (SUMMARY IN ENG)  相似文献   
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The authors compared the effects of alcoholic drinks rich in fusel oil with the effects of diluted pure alcohol of the same quantity on 19 clinically healthy university students. The investigations utilized EEG and physiopsychic testing methods. The clinical symptoms were observed both under the effect of drinks and in a crapulous state ("hang-over"). It was found that alcoholic drinks rich in fusel oil can produce a more deviating EEG curve, an increased worsening of physiopsychic performance and of clinical and subjective symptoms. The necessity of regular quality control of alcoholic beverages is pointed out.  相似文献   
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Skull identification by electronic photo-composition can, with the help of a video-animation compositor, be further developed beyond the pure superprojection technique into an animated picture difference image. The employment of this combined technique to be recommended on account of the improved possibilities of control to be realized in the congruity of the superprojection composite picture.  相似文献   
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The photographic identification of a skull through the well-known superprojection technique can be modified and decisively improved by the use of a video-tape system. The identification method based on electronic photo composition is methodically simple to use. It offers the examiner the possibility to recognize the relationship between bone and soft part proportions, and the structure of the bone surface and the details of the soft part shape, as a concrete, tangible characteristic of identity to a substantially greater extent. The large number of controllable characteristics inherent in the ihgh degree of individuality of the skull offers not just an either/or "The skull fits"/ "It does not fit" into a photograph, but achieves proof of disproof of identity.  相似文献   
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In the current debate on the future European order, the European Union (EU) is often described as an "emerging federation." This article claims that federalism is not exclusively useful in deliberating about the future of the EU. Non-statecentric conceptions of federalism provide a better understanding of the current structure and functioning of the European system of multilevel governance than most theories of European integration and international relations do. We combine political and economic perspectives of federalism to analyze the "balancing act" between effective political representation and efficient policy-making in the EU. Drawing on the examples of Germany and Switzerland in particular, we argue that the increasing delegation of powers to the central EU level needs to be paralleled by strengthened patterns of fiscal federalism and an empowered representation of functional interests at the European level. Without such "rebalancing," the current legitimacy problems of the EU are likely to intensify.  相似文献   
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A common criticism of merit‐pay plans is that they fail to systematically target rewards to the most effective teachers. This study presents new evidence on this issue by evaluating data from Tennessee's Career Ladder Evaluation System and the Project STAR class‐size experiment. Because the students and teachers participating in the experiment were randomly assigned, inferences about the relative quality of teachers certified by the career ladder should be unbiased. The results indicate that Tennessee's career ladder had mixed success in rewarding teachers who increased student achievement. Assignment to career‐ladder teachers increased mathematics scores by roughly 3 percentile points but generally had smaller and statistically insignificant effects on reading scores. © 2004 by the Association for Public Policy Analysis and Management.  相似文献   
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If manufacturing a safer cigarette is technically possible--an open question--then mandating that tobacco manufacturers improve the safety of cigarettes would likely have both positive and negative implications for the nation's health. On the one hand, removing toxins may reduce the incidence of smoking-related diseases and premature mortality in smokers. On the other hand, smokers might be less inclined to quit, those who have quit might resume the habit, and youth who have never smoked will have one less reason to avoid tobacco use. To assess the expected population health impacts of a legislative or regulatory mandate, we created the Tobacco Policy Model, a system dynamics computer simulation model. The model relies on secondary data and simulates the U.S. population over time spans as long as 50 years. Our simulation results reveal that even if requiring cigarettes to be safer makes smoking more attractive and increases tobacco use, a net gain in population health is still possible.  相似文献   
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