Theoretical perspectives on the ideological influences on government contracting predict that local governments controlled by right-wing political parties will contract out a higher proportion of services than those controlled by left-wing parties. However, empirical evidence on the impact of political ideology on contracting out remains inconclusive. To cast new light on this important issue, the authors apply a quasi-experimental research design to contracting choices in children's social services in English local government. Because local governments in England are largely divided along partisan lines, it is possible to estimate ideological effects using a regression discontinuity design that captures changes in political control at 50 percent of the seats gained in local elections. The regression discontinuity estimates reveal that left-wing controlled local governments exhibit a marked aversion to private sector involvement in service provision and a clear preference for in-house service provision. These results are robust to a variety of alternative specifications.相似文献
A fast and simple method to detect some commonly abused illicit drugs, amphetamine, methamphetamine, 3,4-methylendioxy-amphetamine (MDA), 3,4-methylendioxy-methamphetamine (MDMA), 3,4-methylendioxy-N-ethylamphetamine (MDEA) and phencyclidine (PCP) in urine using solvent microextraction (SME) combined with gas chromatography (GC) analysis has been developed. The extraction is conducted by suspending a 2 μl drop of chloroform in a 2 ml urine sample. Following 8 min of extraction, the organic solvent is withdrawn into the syringe and injected into a GC with a pulsed discharge helium ionization detector (PDHID).The effects of different extraction solvents and times, pH and sample preparation were studied. The optimized method was capable of detecting drugs in urine at concentrations below Substance Abuse and Mental Health Services Administration (SAMHSA) established cut-off values for preliminary testing. Good linearity and reproducibility of extraction were obtained. The limits of detection were 0.5 μg/ml for amphetamine, 0.1 μg/ml for methamphetamine and MDA, 0.05 μg/ml for MDMA, 0.025 μg/ml for MDEA and 0.015 μg/ml for PCP. Relative standard deviation (R.S.D.) values ranged between 5 and 20% for the studied drugs. 相似文献
ALICE JAMES: A BIOGRAPHY by Jean Strouse. Boston. Houghton, Mifflin, 1980. 367 pp. ($15.00). THE DEATH AND LETTERS OF ALICE JAMES edited by Ruth Bernard Yeazell. Berkeley. University of California Press, 1981.214pp. ($12.95) CONVERSATIONS WITH KATHERINE ANNE PORTER by Enrique Hank Lopez. (Boston: Little, Brown and Company, 1981). 326 pp., $14.95. 相似文献
Having a sense of purpose is viewed as a benchmark of adaptive development. Though adolescence and emerging adulthood are viewed as central periods for the development of a purpose, work still is needed to understand the childhood factors that influence this developmental process. The current study provides an initial investigation into whether parent-child conflict during elementary school predicts later sense of purpose, assessed during emerging adulthood (mean age: 21.01 years; range: 19.97–23.53). The sample included 1074 students (50% female), and their parents, who both reported on their levels of parent-child conflict during grades 1–5. Higher levels of parent-child conflict were associated with lower levels of purpose in emerging adulthood. Moreover, the study examined whether these effects remained when predicting the variance unique to purpose while accounting for other indicators of well-being in emerging adulthood. Bi-factor models demonstrated that the child’s perception of mother-child conflict has a unique prospective effect on purpose in emerging adulthood, above and beyond its negative association with general well-being. The findings are discussed with respect to how positive parent-child relationships may prove important for starting youth on the path to purpose.
Public administration scholarship has to a significant degree neglected technological change. The age of the algorithm and ‘big data’ is throwing up new challenges for public leadership, which are already being confronted by public leaders in different jurisdictions. Algorithms may be perceived as presenting new kinds of ‘wicked problems’ for public authorities. The article offers a tentative overview of the kind of algorithmic challenges facing public leaders in an environment where the discursive context is shaped by corporate technology companies. Public value theory is assessed as an analytical framework to examine how public leaders are seeking to address the ethical and public value issues affecting governance and regulation, drawing on recent UK experience in particular. The article suggests that this is a fruitful area for future research. 相似文献