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151.
This article examines inter-relationship between "centers" and "peripheries" within political, professional and health care systems. It seeks to determine which conditions tend to improve the capacity of public authorities to further such measures of effectiveness as access to, quality of, and complementarity of health care delivery. Examples are selected from the experience of the United States and West European countries.  相似文献   
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Recent literature reflects the increased use of RIA as a qualitative and quantitative tool. This study exemplifies the problems that may arise when this technique is used for quantitation. Caution must be exercised, and a physiological and toxicological understanding of each particular drug is essential to provide credible results. It is evident that the sensitivity and ease of the RIA method for methaqualone makes it invaluable as a screening test, but confirmation and quantitation of this drug must remain with those methods that can quantitate each metabolite.  相似文献   
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Book reviews     
Hélène Carrère d'Encausse, Une Révolution, une victoire. L'union soviétique de Lénine à Staline 1917–1953. Paris: Editions Richelieu, 1972. 446 pp. 60 F.

Joel C. Moses, Regional Party Leadership and Policy‐Making in the USSR. (Praeger Special Studies in International Politics and Government.) New York: Praeger Publishers, 1974, and London: Pall Mall Press, 1975. xv+263 pp. £8.00.

Robert J. Osborn, The Evolution of Soviet Politics. Homewood, Ill. and London: The Dorsey Press, 1974. xiii+574 pp. $10.95.

Robert H. Donaldson, Soviet Policy toward India: Ideology and Strategy. (Russian Research Center Studies, 74.) Cambridge, Mass.: Harvard UP, 1974. x+338 pp. £7.50.

Lloyd G. Churchward, Contemporary Soviet Government. Second Edition. London: Routledge & Kegan Paul, 1975. 368 pp. £6.95.

Otto Ul?, Politics in Czechoslovakia. San Francisco and Reading: W. H. Freeman, 1975. xi+181 pp. £4.70.

Ivan Volgyes (ed.), Environmental Deterioration in the Soviet Union and Eastern Europe. (Praeger Special Studies in International Politics and Government.) New York: Praeger, 1974, and London: Pall Mall Press, 1975. xiii+168 pp. $14.00. £6.00.

Rolf Freund, Investitionskriterien als Mittel zur Realisierung eines Entwick‐lungspfades. Dargestellt am Beispiel der UdSSR. Berlin: Osteuropa‐Institut an der Freien Universität Berlin, 1974. v+202 pp. DM 12.00.

László Szamuely, First Models of the Socialist Economic Systems. Principles and Theories. Budapest: Akadémiai Kiádó, 1974. 109 pp. £2.60.

Iain F. Elliot, The Soviet Energy Balance. Natural Gas, Other Fossil Fuels, and Alternative Power Sources. (Praeger Special Studies in Economics and Development.) New York: Praeger Publishers, 1974, and London: Pall Mall Press, 1975. xv+277 pp. £8.00.  相似文献   

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This article explains political radicalism by the number of voters who are biased towards a party. With little voters biased in favor of a party, this party has to rely more heavily on its programmatic distance to other parties. Because large parties – i.e.: parties with a high number of biased voters – gain votes when they move to the center of the political spectrum, parties with a lower number of voters that are biased in their favor are forced to the edges of the policy space. We draw on a computational model of political competition between four parties in a two‐dimensional policy space to investigate this relationship. We use panel corrected OLS estimates to analyze the data generated by the computer simulation. Our results substantiate the hypothesis of a negative relationship between the number of biased voters and the inclination of a party to adopt a more extreme policy stance.  相似文献   
159.
Prior studies have found inconsistent relationships between measures of self-concept and adolescent alcohol use. The current study explored whether the link between various measures of self-concept and alcohol use depends on gender. In addition, earlier work suggested a focus on negative self-esteem (i.e., self-derogation) might be more useful in predicting alcohol use. Students (N = 1459) attending 22 middle and junior high schools in New York City completed surveys that included measures of efficacy, self-derogation, and alcohol use. Participants completed surveys at baseline, 1-year follow-up, and 2-year follow-up. Data collectors administered the questionnaire following a standardized protocol during a regular 40-min-class period. On the basis of a longitudinal structural equation model, lower efficacy was related to greater self-derogation a year later across gender. Increased self-derogation predicted higher alcohol use for girls but not boys. These findings are congruent with a literature highlighting the importance of negative thoughts about the self in drinking behavior for women but not men. The results suggest that the alcohol prevention approaches should include material to enhance girls' self-esteem.  相似文献   
160.
Der Beitrag behandelt die Auswirkungen unterschiedlicher Beschäftigungsverhältnisse und berufsbiografischer Erfahrungen auf die Integration in soziale Beziehungen, insbesondere solche zu Freunden und Verwandten. Ein wichtiger Aspekt sind hierbei Erfahrungen von Diskontinuität und Unsicherheit auf dem Arbeitsmarkt, die nach Sennett auf den Bereich persönlicher Beziehungen übergreifen und die Integration in enge, verlässliche Beziehungen erschweren. Dem gegenüber gibt es allerdings auch theoretische Argumente für eine Kompensation berufsbiografischer Unsicherheiten durch eine verstärkte Hinwendung zu engen und stabilen Primärbeziehungen. Empirische Analysen mit den Daten des Familiensurvey 2000 zeigen sowohl negative Auswirkungen als auch kompensatorische Zusammenhänge, wobei letzteres wohl nur dann möglich ist, wenn das Unsicherheitsniveau nicht ein bestimmtes Maß übersteigt bzw. individuelle Bewältigungsressourcen vorhanden sind. Überraschenderweise sind nicht primär die Verwandtschaftsund Familienbeziehungen Basis solcher kompensatorischer Zusammenhänge, sondern Freundschaften.  相似文献   
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