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The continued existence and predominance of large farm enterprises (LFEs) in Russian agriculture during the transition to a market economy is analysed using theories of transaction costs, coordination mechanisms and networks. A comparative analysis is presented of farm restructuring in two, highly contrasting survey regions. That analysis shows that LFEs have undertaken only partial restructuring, which has not lead to radical increases in output and productivity. Still, LFEs have kept functioning by adopting a rational strategy of 'coping with the market'. This entails their integration into processing and retailing, and building up new business (and social) networks while cultivating old ones. The network economy that has thus emerged has enabled them to stay afloat as social and economic units, in a form of 'paradoxical continuity'. 相似文献
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Marvella A. Bowman Hazel M. Prelow Scott R. Weaver 《Journal of youth and adolescence》2007,36(4):517-527
The aim of the present study was to examine a model positing that association with deviant peers mediates the relation between
adolescent perceived parenting behaviors (maternal monitoring and involvement), the interaction of these parenting behaviors,
and delinquency in a sample of 135 urban African American adolescents (13–19 years of age). Regression analyses revealed a
monitoring by involvement interaction among African American females, suggesting that maternal monitoring may effectively
reduce delinquency among African American female adolescents, and that this reduction may be enhanced by increased maternal
involvement. Among African American males, only the relation between association with deviant peers and delinquency was supported,
suggesting that maternal parenting behaviors may, in isolation, be insufficient in the prevention of delinquent behaviors
in African American male adolescents. The results suggest that the pathways from parenting to association with deviant peers
and delinquency may differ in males and females, and the salience of certain parenting behaviors may differ across gender.
This article is based on research that was submitted by the first author in partial fulfillment of the requirements of the
master’s degree in psychology at the University at Albany, State University of New York. Support for this research was provided
by a Faculty Research Award to the second author.
Doctoral student in the Clinical Psychology Program at the University at Albany, State University of New York. Her major research
interests include risk and resiliency processes in minority youth and measurement equivalence of risk and resiliency constructs.
Assistant professor in the Department of Psychology at the University at Albany, State University of New York. She received
her Ph.D. in Clinical Psychology from the University of North Texas. Her major research interests are ecocultural models of
risk and resiliency in minority youth and measurement equivalence of risk and resiliency constructs.
Post-doctoral fellow with the Prevention Research Center at Arizona State University. He received his Ph.D. in Clinical Psychology
from the University at Albany, State University of New York. His major research interests are ecocultural models of risk and
resiliency in children, preventive intervention development for diverse children, and quantitative methodology and applications
in developmental and cross-cultural psychology. 相似文献
18.
This article is an assessment of Quentin Skinner's contribution to the study of political change and to the contemporary debate in political philosophy. We argue that the significance of Skinner's work to a large extent has been neglected by political scientists, as they have tended to regard him solely as a historian of ideas rather than as a political scientist. However, Skinner's approach not only offers valuable methodological lessons but a historically grounded framework that accounts for the relationship between human agency and the structural language-context, that make actions meaningful. This allows for a conception of historical change that is neither narrowly structuralist nor exclusively focused on the individual agent. In his most recent historical works, Skinner has entered the main debate of contemporary political philosophy, i. e. the debate between liberals and communitarians. Here, his analysis of the classical republican tradition of political thought, attempts a revitalization of the debate beyond the stereotypes of liberalism and Aristotelianism. This work points towards the possibility of developing a radical reconception of modern liberal democracy. 相似文献
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Weaver RK 《Social security bulletin》2003,65(4):38-56
Sweden's new multipillar pension system includes a system of mandatory fully funded individual accounts. The Swedish system offers contributors more than 600 fund options from a variety of private-sector fund managers. However, in the most recent rounds of fund choice, more than 90 percent of new labor market entrants have not made an active choice of funds and thus have ended up in a government-sponsored default fund. The Swedish system offers a number of lessons about implementing a mandatory individual account tier. Centralized administration keeps administrative costs down but requires considerable lead time. A very large number of fund options are likely to be offered unless strong entry barriers are in place. Engaging new labor market entrants in fund choice is likely to be difficult. A significant percentage of those making an active fund choice may choose funds that are very specialized and risky. Finally, special care must be devoted to designing a default fund and continual consumer communication. 相似文献
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M L Weaver B K Gan E Allen L D Baugh F Y Liao R H Liu J G Langner A S Walia L F Cook 《Forensic science international》1991,49(1):43-56
Results obtained from three commercial immunoassay kits, Abuscreen, TDx, and EMIT, commonly used for the initial test of urine cannabinoids (and metabolites) were correlated with the 11-nor-delta 9-tetrahydrocannabinol-9-carboxylic acid (9-THC-COOH) concentration as determined by GC/MS. Correlation coefficients obtained based on 26 (out of 1359 total sample population) highly relevant samples, are 0.601 and 0.438 for Abuscreen and TDx. Correlation coefficients obtained from a parallel study on a different set of 47 (out of 5070 total sample population) highly relevant specimens are 0.658 and 0.575 for Abuscreen and Emit. The immunoassay concentration levels, that correspond to the commonly used 15 ng/ml GC/MS cutoff value for 9-THC-COOH, as calculated from the regression equations are 82 ng/ml and 75 ng/ml for TDx and EMIT and 120 ng/ml and 72 ng/ml for Abuscreen manufactured at two different time periods. The difference of these calculated corresponding concentrations provides quantitative evidence of the reagent specificity differences. 相似文献