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291.
Our knowledge of how policy innovations diffuse in federal systemscould be enhanced by paying greater attention to the behaviorof policy entrepreneurs. This study shows how policy entrepreneurshelped stimulate the diffusion of state school-choice plansby collecting and generating evidence of workability of thisinnovation. Importantly, these policy entrepreneurs have oftenused evidence from local experiments to promote state policychange. Thus, a state-local nexus exists in the diffusion schoolchoice. This analysis suggests that there is value in conceptualizingpolicy innovation diffusion a federal system as both a horizontal(that is, state to state) and a vertical (that is, state andlocal) phenomenon. 相似文献
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Michael A. Hoffman Rachel Levy-Shiff Varda Ushpiz 《Journal of youth and adolescence》1993,22(1):23-31
The study assessed whether the impact of social support on self-esteem is moderated by the adolescent's orientation toward the source of aid. Questionnaires were administered to 84 Israeli adolescents regarding self-esteem, perceived level of support from parents and peers, and preference, or orientation, for support from these sources. Regression analyses indicated that the positive effect of social figures' support on self-esteem increased as a function of interest in receiving aid from the specific source. Correlational analyses also revealed that heightened orientation toward parents was associated with higher levels of perceived parental support, whereas heightened orientation toward peers was associated with higher levels of peer support and lower levels of parental aid. These findings were consistent with self-evaluation maintenance and social provision theories, which suggest that the individual has an active role in selectively seeking out and filtering external social influences.His doctorate in educational psychology is from UCLA. Current research interests include stress and coping across the life span, social sources of adolescent self-esteem, and intergroup relations in the junior high school.Her doctorate in clinical psychology is from the Hebrew University in Jerusalem. Her research interests include family relations, social and emotional development in children and adolescents, and developmental psychopathology.Her research interests focus on social support in the family. 相似文献
294.
Puberty has been related to the onset of a variety of weight concerns and eating problems among middle school girls, including body dissatisfaction, dieting, and eating disorders. At least two models can be used to explain these relationships. The first emphasizes the timing of puberty, arguing that girls who face early puberty are particularly stressed because of the off-time nature of the event. The second focuses on synchronous events. For girls more than boys, puberty is likely to coincide with the change from elementary to middle school and/or beginning to date. Such synchronous events may create greater stress for girls. Seventy-nine girls were tested during the spring of their sixth- and eighth-grade years. Pubertal and dating status, body dissatisfaction, weight management, and eating disordered attitudes (using the Children's EAT:ChEAT) were assessed. The simple timing model (early vs. on time vs. late) was not supported. The simple synchronous model received some support in that girls with synchronous onset of menstruation and dating had higher ChEAT scores as well as greater body dissatisfaction. However, the data indicated that girls for whom puberty was early and coincidental with dating might be at unusual risk. These girls showed the highest levels of body dissatisfaction and the highest ChEAT scores.Ph.D. from Temple University. Research interest is in developmental psychology.Ph.D. from the University of California at Santa BarbaraThese authors have a joint research program in the developmental psychopathology of eating problems.The first wave of data for this report was collected as part of her undergraduate honors thesis.Earlier versions of these data were presented at the 1991 meeting of the Society for Research in Child Development, Seattle, Washington and the 1992 Conference on Human Development, Atlanta, Georgia. 相似文献
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A detailed analysis of English local elections between 1985 and 1991 seems to support the propositions that a proportion of electors hold contradictory local and national voting preferences at one and the same time; and that there is significant variation in party performance both between and within local authorities. The paper concludes that the stimuli to which electors respond in local elections are often those most relevant to the ‘context’ in which their vote is cast. If partisan dealignment has led to a greater willingness on the part of the electorate to regard voting as a matter of ‘horses for courses’, there may not only be a further fragmentation in the results of elections of all kinds but the parties may experience different degrees of success depending on the nature of the contest. 相似文献
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Michael Mann 《Berliner Journal für Soziologie》2000,10(2):241-277
Der vorliegende Aufsatz entwickelt eine makrosoziologische Strategie zur Erklärung eliminatiorischer ethnischer Säuberungen. In einem ersten Schritt wird gezeigt, dass Ansätze, die den Staat oder eine schwache Zivilgesellschaft als zentralen Erklärungsfaktor heranziehen, der historischen Vielfalt und Komplexität der zu erklärenden Ereignisse nicht gerecht werden. Vielmehr ist eine präzise Analyse politischer Akteure und Akteurskonstellationen erforderlich. In einem zweiten Schritt wird in der Form einer Typologie das theoretische Möglichkeitsfeld politischer Konstellationen ethnischer Gruppen abgesteckt, wobei Multikulturalismus und Genozid die Extrempole der Typologie markieren. Im dritten und umfangreichsten Teil des Aufsatzes wird schließlich in Form einer fünfstufigen weltgeschichtlichen Periodisierung eine historisch-vergleichende Strategie zur Erklärung ethnischer Säuberungsprozesse skizziert. Dabei wird deutlich, wie die Faktoren Sprache, Religion und Territorialität (Provinz) bei der politischen Formierung konkreter ethnischer Akteurskonstellationen so zusammenwirken, dass das gesamte zuvor entwickelte typisierende Möglichkeitsfeld historisch abgedeckt wird. 相似文献
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Michael Kirby 《澳大利亚政治与历史杂志》2000,46(4):510-535