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81.
This paper provides an empirical appraisal of the influence ofpolitics on the evolution of unemployment rates in 13industrialized democracies (12 European Union countries andthe U.S.) from 1960 to 1999. We conduct new tests ofopportunistic and partisan business cycle models, using richerdata and more general specifications than previous studies. Incontrast to most previous studies, we pay particular attentionto the importance of labor market structure in conditioningthe influence of politics on unemployment. We also investigatethe relationship between political stability and economicstability. The results suggest the existence of partisan effects, withhigher unemployment rates prevailing under ``right'' partiesthan ``left'' parties. There is more support for ``rational''partisan models that embody transient partisan impacts thanfor models with permanent effects. We find evidence that unionpower is associated with higher average unemployment rates,but that centralized bargaining institutions tend to lowerunemployment rates. The evidence also suggests that morefragmented coalition governments are associated with higherunemployment rates than single party governments.  相似文献   
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83.
This study is primarily aimed at investigating how pubertal timing is perceived in urban Turkish adolescents in terms of their feelings about maturation, their relationships with their parents, and their self-perception. A total of 697 high-school students (360 girls, 337 boys) between the ages of 14 and 18 (M=16.15, SD=1.08) were included in this study. The findings indicated that most of the adolescents perceived themselves as on-time developers in comparison with their peers. Consistent with widely available research data in the literature regarding the impact of early versus late maturation, girls who mature early and boys who mature late reported more negative feelings about pubertal maturation. In addition, those who matured early reported greater conflict and disagreement with their parents and more negative communication with their fathers than the adolescents who matured on- time. Adolescents who were less satisfied with their physical appearance were more likely to have negative feelings about pubertal maturation. Sex was found to act as a moderator of relationships between global self-worth and feelings about pubertal maturation. In conclusion, this study, conducted with Turkish urban adolescents, suggests that the impact of early versus late maturation differs between girls and boys, which is consistent with widely available data in the literature.  相似文献   
84.
Public transportation policy is analyzed as the output of a complex social system of interdependencies and power relationships linking the central state bodies to various economic and political organizations. The interest groups structure the system by controlling the implementation process. The system works because of cheating—violating the public regulations, but the interest groups need state regulation to protect their privileges.The study of governmental projects is a particularly stimulating form of political analysis. Because it emphasizes both the process and the contents of the activities of public authorities, which is to say the goods and services produced by the State, such a study deals with problems having specific impact on and distinct meaning for individuals. It also allows one to avoid overly abstract speculation on the nature of the State by placing the discussion on a more scientifically fruitful level, that of the effective interactions and exchanges among institutions and groups.Our objective will be to demonstrate the importance of the implementation sequence of public policy, particularly in terms of its effects on the understanding of the definition of alternative solutions. We will concentrate on the way in which an ensemble of systems effects, induced by governmental action conditions both the perception of the problem to which this action is supposedly responding, and the elaboration of decisions to solve the problem. The method employed will be that of suggesting a form of analysis which will discern those fields of force and interaction processes with which decision makers, in this case public authorities, are confronted. The method employed should thus be useful in understanding the process of decision making.  相似文献   
85.
Scientific research car for scientific purposes. As such, scientific research will necessarily be evaluate scientific terms. However, scientific research can also be supported for such nonscientific purposes as economic development, industrialization, education, etc. In that case, evaluation of scientific research will be based on economic, educational, etc., yardsticks. This paper attempts to seek evaluation criteria for the public support of science for the purposes of technological promotion. Such a public investment is shown to be a risky process. The “riskiness” of the process is discussed within the framework of a model of science-based technology and expressed in stochastic terms. A decision-making framework is then developed on the basis of expected utility hypotheses.  相似文献   
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87.
STR-genotyping from human medieval tooth and bone samples   总被引:3,自引:0,他引:3  
We extracted the DNA contained in samples of bones and teeth from 10 skeletons excavated from the Gravette site (400-1000 AD, south of France). Ancient DNA was analysed by autosomal short tandem repeats (STRs). The DNA present in these ancient remains appeared very degraded, but nevertheless, better conserved in tooth than in bone samples. Moreover, we showed that the DNA extracted from ancient dental pulp was not exempt from polymerase chain reaction (PCR) inhibitors, which could result from extreme DNA fragmentation. An adapted protocol with a supplementary step of purification removed this inhibition.  相似文献   
88.
Postmortem examination of a 35-year-old parous woman who died suddenly revealed a hydatid cyst mass located at the right ventricular outlet, with a grossly discernible defect opening to the pulmonary outflow tract. Pulmonary hemorrhage, follicular bronchitis, and bronchiolitis also were present, with severe acute purulent exudation in the airways. Hydatid cyst complications must be kept in mind when dealing with sudden deterioration and death in patients who are residents of regions where echinococcosis is endemic.  相似文献   
89.
Occupational exposure biological monitoring techniques were applied for the diagnosis of inhalation abuse and for the evaluation of the levels of exposure to benzene, toluene, ethylbenzene, xylenes, and n-hexane, in 44 Tunisian adolescents and children suspected for volatile substance addiction. Urinary trans,trans-muconic acid, hippuric acid (HA), mandelic acid, and methylhippuric acids determinations were performed by high performance liquid chromatography with a photodiode array detector, and urinary o-cresol (o-Cr) and 2,5-hexanedione (HD) were extracted simultaneously and measured using gas chromatography with a flame ionization detector. Given the high linearity ranges, HD and o-Cr occupational exposure monitoring techniques could be applied without modification. However, urinary sample dilution was necessary before HA analysis. Concentrations were compared with the maxima of normal values (MNVs) in the general population and to the biological exposure indices (BEIs) used in occupational toxicology. Values as high as 6610-fold the MNV and 68 times the BEI were registered. The subjects showed high exposure to toluene and hexane. Measured metabolites HA and/or o-Cr and HD enabled the easy detection and evaluation of exposure levels. The problem of inhalant abuse should be given more attention and treated through an effective prevention strategy.  相似文献   
90.
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