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Conflicts between favorites and underdogs are everyday phenomena. We examine their strategic behavior in an experimental contest, and find behavior partially consistent with predictions. Favorites given a first-mover advantage do overcommit effort relative to Nash. Underdogs often select the best response effort level given the favorite's move. Overall dissipation of the prize was significantly higher with the strategic commitment relative to Nash. qu]Life is not so mathematically idiotic that it allows only the big to eat the small, for it happens just as often that the bee kills the lion, or at least drives it mad. 相似文献
23.
Alison F. Del Rossi 《Public Choice》1995,85(3-4):285-305
This paper empirically investigates the economic and political factors that have influenced annual Corps of Engineers water resource spending. Despite the common view that “pork barrel” spending is economically unjustified and purely politically motivated, economic factors have been important in determining water resource spending. From 1865–1920, economic development and industrialization increase spending, and from 1921–1988, spending appears to be counter-cyclical. There is also evidence that majority parties control spending levels in the post-Civil war period, while in recent times, legislators act under a norm of “constrained universalism” and are influenced by the costs to their constituents of increased spending. 相似文献
24.
Nancy J. Bell Arthur W. Avery David Jenkins Jason Feld Carol J. Schoenrock 《Journal of youth and adolescence》1985,14(2):109-119
Data from a large sample of late adolescents was used to examine associations between family relationships (reported closeness to parents and siblings) and perceived social competence. Significant positive relationships were found between family bonds and the social competence measures, which included social self-esteem, instrumentality, expressiveness, shyness, and degree of satisfaction/ease in same- and opposite-sex peer relationships. There was no evidence of differential effects of sibling versus parent relationships upon adolescent social competence.This project was supported by NIMH Grant 5 R01 MH34570.Received Ph.D. from Northwestern University. 相似文献
25.
This article looks at the newly-issued JCAHO standards and their increased focus on patient safety in performance standards for healthcare organizations. As part of these standards, hospitals are required to inform patients of outcomes of care, including unanticipated outcomes. This article examines this requirement and suggests varying interpretations of it. After looking at the current legal and ethical standards requiring disclosure of errors or negligent acts, the article suggests that hospitals are faced with many difficulties in implementing the standard. Specifically, the article argues that more details are necessary regarding what events must be reported and what hospitals are required to do when members of the medical staff refuse to inform patients of medical error. 相似文献
26.
Mitochondrial DNA analysis of a maggot crop can identify the corpse a maggot has been feeding on. Analysis of the crop could be useful in a criminal investigation if maggots are found at a suspected crime scene in the absence of a body, or if there is a question of whether a maggot used in postmortem interval estimations moved onto the corpse from another food source. Such analysis can also resolve a chain of custody dispute if it has been suggested that larval samples have been switched. When recovering DNA from a maggot crop, the analyst must be careful to avoid external contamination. We investigated the effects of three simple wash methods developed to reduce external contamination. Maggots raised on pig liver and intentionally contaminated with cow blood were washed using water, 20% bleach, or a solution containing the enzyme DNase. Only washing the maggots in 20% bleach reduced the amount of vertebrate DNA amplified from the maggots' exteriors. No wash method affected the ability to recover DNA from the maggot crops. 相似文献
27.
“Beggar thy Neighbor:” Testing for Free Riding in State-Level Endangered Species Expenditures 总被引:1,自引:0,他引:1
An important public policy question that remains unresolved iswhether devolution will enhance sensible policy making byexploiting informational asymmetries or, instead, trigger a``beggar thy neighbor'' response and stimulate free ridingamongst localities. We analyze this question within theframework of U.S. environmental policymaking by scrutinizing aunique panel data set on state-level endangered speciesexpenditure patterns. Our empirical estimates are consistentwith the notion that states free ride, which may lead to anexpenditure equilibrium that is not Pareto efficient. 相似文献
28.
This study examines characteristics that distinguish succeeding and failing Hispanic students at an inner-city high school. While research on this topic has historically focused on dropouts, this study seeks to better understand successful high school students. Participants in the study were 48 Hispanic tenth-grade students at a large, predominantly minority and low-income high school. High-and low-risk groups were identified on the basis of ninth-grade attendance rates and course failures. When compared to their high-risk counterparts, low-risk students were found to be more satisfied with their school and to maintain a social group predominantly free of gang members. The findings are discussed in terms of how the distinguishing variables contribute to students' success.Obtained degree in clinical-community psychology from DePaul University. Research focuses on adolescent risk factors, particularly as they relate to academic success and high school completion.Earned degree in clinical-community psychology from the University of Rochester. Has published extensively on issues related to prevention and community psychology. Most recently work has focused on strategies to help high-risk school transfer children adjust to the academic demands of their new schools. 相似文献
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A 1H nuclear magnetic resonance (1H NMR) method for the determination of gamma-hydroxybutyric acid (GHB) and gamma-hydroxybutyrolactone (GBL) in human serum and urine using spiked samples has been developed. The method gives linear responses (correlation coefficients of 0.99 or greater) over the concentration range 0.01 mg/mL to 4.0 mg/mL in urine and 0.3 mg/mL to 2.0 mg/mL in serum. No sample pretreatment is required. Studies of the chemical interconversion of GBL and GHB showed hydrolysis of GBL to be rapid at pH 11.54, slower and less complete (30% hydrolysis) at pH 2.54 and slowest at pH 7.0, reaching 30% hydrolysis in about 40 days. No esterification of GHB was observed at any pH. 相似文献