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Civic engagement and collaborative public management are concepts that are defined broadly, making theoretical explication challenging and practical application of empirical research difficult. In this article, the authors adopt definitions of civic engagement and collaborative public management that are centered on the citizen and the potential for active citizenship. Following a historical review of civic engagement in the United States, a conceptual model of five approaches to civic engagement is offered. Citizen-centered collaborative public management is enhanced through these approaches. The authors suggest the need for further empirical research on collaborative public management that is grounded in citizenship action. 相似文献
144.
The legal approach to abortion is evolving from criminal prohibition towards accommodation as a life-preserving and health-preserving option, particularly in light of data on maternal mortality and morbidity. Modern momentum for liberalization comes from international adoption of the concept of reproductive health, and wider recognition that the resort to safe and dignified healthcare is a major human right. Respect for women's reproductive self-determination legitimizes abortion as a choice when family planning services have failed, been inaccessible, or been denied by rape. Recognition of women's rights of equal citizenship with men requires that their choices for self-determination be legally respected, not criminalized. 相似文献
145.
Extraction and analysis of human nuclear and mitochondrial DNA from electron beam irradiated envelopes 总被引:1,自引:0,他引:1
The United States Postal Service is considering methods such as electron beam irradiation to neutralize biological agents sent through the mail. While this is proven to reduce/eliminate pathogenic organisms, it may also degrade human genomic DNA and therefore hinder the ability to garner forensically informative genetic profiles. To determine the effects of electron beam irradiation on DNA typing, 16 white, standard letter-sized envelopes were licked. Half of the envelopes served as nonirradiated controls while the other half underwent irradiation at dosages sufficient to kill anthrax spores (29.3 and 51.6 kGy). Total cellular DNA was extracted from all envelopes; nuclear short tandem repeat loci, as well as the hypervariable region I from mitochondrial DNA, were amplified by means of the polymerase chain reaction. Short tandem repeat profiles and mitochondrial DNA sequence haplotypes were acquired on an ABI Prism 310 Genetic Analyzer platform. Analysis of data from irradiated samples revealed evidence of DNA degradation; however, the ability to construct full genetic profiles from both nuclear and mitochondrial DNA remained largely unaffected. The use of the polymerase chain reaction, coupled with florescent fragment analysis and mitochondrial DNA sequencing, should be considered to profile biological material from evidence enduring irradiation to inactivate infectious agents. 相似文献
146.
Abstract Despite considerable interest in comparative fiscal policy in general, and the high salience of tax policy and tax reform in the industrialized democracies, there are relatively few cross–national studies of the economic and political correlates of revenues over time. We undertake a cross–national time series study of revenue growth in fourteen OECD countries between 1958 and 1990.We test a number of political and economic hypotheses about revenue change, including political business cycle, 'fiscal illusion', elasticity, and ideological theories. For the 1958—1990 period, we find that all countries, regardless of revenue structure, experience higher real revenue growth as a result of inflation, but that revenue growth is more responsive to unemployment in countries that rely more on direct taxes compared to countries with less direct–tax reliance. We find that this effect is most pronounced in the post–1972 period. We also find that revenue tends to increase in the years following elections, consistent with the idea that governments try to minimize the political fallout from tax increases by separating them as much as possible from election campaign periods; this effect, too, is most pronounced in the post–1972 period. We find no support for 'fiscal illusion' and ideological theories of revenue growth. 相似文献
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Rachel F. Rodgers Elizabeth Donovan Tara Cousineau Kayla Yates Kayla McGowan Elizabeth Cook Alice S. Lowy Debra L. Franko 《Journal of youth and adolescence》2018,47(7):1363-1372
Mobile interventions promoting positive body image are lacking. This study presents a randomized controlled evaluation of BodiMojo, a mobile application (app) intervention grounded in self-compassion to promote positive body image. A sample of 274 adolescents, mean (SD) age?=?18.36 (1.34) years, 74% female, were allocated to a control group or used BodiMojo for 6 weeks. Appearance esteem, body image flexibility, appearance comparison, mood, and self-compassion were assessed at baseline, 6, and 12 weeks. Significant time by group interactions emerged for appearance esteem and self-compassion, with appearance esteem and self-compassion increasing in the intervention relative to the control group. These findings provide preliminary support for BodiMojo, a cost-effective mobile app for positive body image. 相似文献
150.
THE INTERNAL AND EXTERNAL VALIDITY OF THE REGRESSION DISCONTINUITY DESIGN: A META‐ANALYSIS OF 15 WITHIN‐STUDY COMPARISONS 下载免费PDF全文
Duncan D. Chaplin Thomas D. Cook Jelena Zurovac Jared S. Coopersmith Mariel M. Finucane Lauren N. Vollmer Rebecca E. Morris 《Journal of policy analysis and management》2018,37(2):403-429
Theory predicts that regression discontinuity (RD) provides valid causal inference at the cutoff score that determines treatment assignment. One purpose of this paper is to test RD's internal validity across 15 studies. Each of them assesses the correspondence between causal estimates from an RD study and a randomized control trial (RCT) when the estimates are made at the same cutoff point where they should not differ asymptotically. However, statistical error, imperfect design implementation, and a plethora of different possible analysis options, mean that they might nonetheless differ. We test whether they do, assuming that the bias potential is greater with RDs than RCTs. A second purpose of this paper is to investigate the external validity of RD by exploring how the size of the bias estimates varies across the 15 studies, for they differ in their settings, interventions, analyses, and implementation details. Both Bayesian and frequentist meta‐analysis methods show that the RD bias is below 0.01 standard deviations on average, indicating RD's high internal validity. When the study‐specific estimates are shrunken to capitalize on the information the other studies provide, all the RD causal estimates fall within 0.07 standard deviations of their RCT counterparts, now indicating high external validity. With unshrunken estimates, the mean RD bias is still essentially zero, but the distribution of RD bias estimates is less tight, especially with smaller samples and when parametric RD analyses are used. 相似文献