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Nicholas R. Miller 《Public Choice》2010,145(3-4):575-579
An Ordeshook-Schwartz agenda tree requires a voting theorist to assign a unique “ostensive alternative” to each node, but under some non-pairwise agendas there is no evident principle by which to do this. Therefore Ordeshook-Schwartz sincere voting is not clearly defined under all types of agendas. Farquharson-style agenda trees sidestep this problem and allow one or more definitions of sincere voting under every type of agenda. 相似文献
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The purpose of this research was to compare the self-images of male and female children in order to determine whether females were at a particular disadvantage and, if so, why. A random sample of 1988 children from grades 3–12 were interviewed in Baltimore in 1968. Findings show more disturbance among White adolescent females than among White males or Black females: White girls become much more self-conscious and show greater self-image instability and somewhat lower self-esteem. Three sets of factors appear to explain part of these differences: (1) attitudes toward present and future sex role, (2) peer relationships in general and opposite sex relationships in particular, and (3) attitudes toward changing looks in adolescence.The work of the first author is currently supported by a Research Development Award from the National Institute of Mental Health, No. 5-K1-MH-41, 688-03. The work was also partly supported by USPHS Grants 1-F3-MH-41, 688-01 and MH-197541-01.The data were collected in 1968.Received her Ph.D. from Columbia University and has been interested in the social determinants of the self-image and in studies of the social psychological consequences of organ transplantation.Received her Ph.D. from the University of Maryland and is interested in social psychology in general and sex roles in particular. 相似文献
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A rapid and sensitive liquid chromatography/electrospray ionization mass spectrometry (LC/MS) procedure has been developed for the analysis of biofluids containing flunitrazepam and its metabolites. Specimens were spiked with deuterated analogs of the analytes. Urine specimens were enzymatically hydrolyzed and blood specimens were untreated. Extractions were carried out using CleanScreen DAU SPE cartridges. The drugs were separated on a C18 column using a methanol-water-ammonium hydroxide (60:40: 0.03 v/v) mobile phase. After determination of base peaks using full scan mass spectrometry, the mass spectrometry method was optimized to operate in selected-ion monitoring (SIM) mode for the base peak of each analyte. Positive findings were confirmed by LC/MS/MS using the same mobile phase and column. This analytical procedure allows for the detection of low levels of flunitrazepam and metabolites in biofluids. It is useful for ascertaining the role of flunitrazepam in cases of drug-facilitated sexual assault. 相似文献
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