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931.
Jessalynn James Matthew A. Kraft John P. Papay 《Journal of policy analysis and management》2023,42(4):1010-1044
We explore the dynamics of competitive search in the K–12 public education sector. Using detailed panel data on teacher hiring from Boston Public Schools, we document how teacher labor supply varies substantially across vacancies even within a single district depending on position type, school characteristics, and the timing of job postings. We find that early-posted positions are more likely to be filled and end up securing new hires that are better qualified, more effective, and more likely to remain at a school. In contrast, the number of applicants to a position is largely unassociated with hire quality, suggesting that schools may struggle to identify and select the best candidates even when there is a large pool of qualified applicants. These patterns persist even when we restrict comparisons to only positions within an individual school using school fixed effects. Our findings point to substantial unrealized potential for improving teacher hiring. 相似文献
932.
Ora John Reuter 《欧亚研究》2010,62(2):293-327
This article analyses the emergence of United Russia (Edinaya Rossiya) as a dominant party by examining the behaviour of Russia's governors. Using original data on when governors joined United Russia, the article demonstrates that those governors with access to autonomous political resources were more reluctant to join the dominant party. By showing that Russian elite members made their affiliation decisions on the basis of calculations about their own political resources rather than simply being coerced by the Kremlin, this article provides evidence for a theory of dominant party formation that casts the problem as a two-sided commitment problem between leaders and elites. 相似文献
933.
Mbène Dièye Faye John C. Weber Bayo Mounkoro Joseph-Marie Dakouo 《Development in Practice》2010,20(3):428-434
Native species of trees and shrubs contribute significantly to farmers' livelihoods by supplying food, medicinal products, fodder, and wood. In the case study reported in this article, this contribution to farmers' annual revenue varied from 26 per cent to 73 per cent, and was as high as US$ 650 a year for households for which agroforestry products were the primary source of revenue. Household consumption was not quantified in the study, but farmers' comments confirmed that native trees also played an important role in assuring food security, especially in the ‘hunger period’ when grain stores are low and farmers are waiting for the next harvest. 相似文献
934.
935.
Kelly Olds B.HealthSci. John Gilbert M.B. B.S. Neil E.I. Langlois M.D. Roger W. Byard Ph.D. M.D. 《Journal of forensic sciences》2019,64(4):1245-1247
A 32‐year‐old woman collapsed following an intravenous injection of material that included crushed pharmaceutical tablets. Resuscitation was attempted but was unsuccessful. She had an extensive past medical history of complications resulting from intravenous drug use. Death was due to mixed drug toxicity. The major findings at autopsy included a 10 mm deep skin sinus over the right femoral vein that was used as an injection site. Polarizable foreign material was present at the injection site and also within the lungs with a granulomatous reaction. Of note, a probe‐patent foramen ovale had permitted paradoxical embolization of this material into the systemic circulation with lodgement within the liver, portal lymph nodes, myocardium, spleen, kidneys, and pancreas. This case highlights the importance of checking for any intracardiac shunts, which may be quite small, and systemic dissemination of foreign material to multiple organs in intravenous drug users who present for medicolegal assessment. 相似文献
936.
John S. Buckleton D.Sc. Simone Gittelson Ph.D. Tamyra R. Moretti Ph.D. Anthony J. Onorato M.C.I.M. M.S.F.S. Frederick R. Bieber Ph.D. Bruce Budowle Ph.D. Duncan A. Taylor Ph.D. 《Journal of forensic sciences》2019,64(2):393-405
Forensic DNA interpretation is transitioning from manual interpretation based usually on binary decision‐making toward computer‐based systems that model the probability of the profile given different explanations for it, termed probabilistic genotyping (PG). Decision‐making by laboratories to implement probability‐based interpretation should be based on scientific principles for validity and information that supports its utility, such as criteria to support admissibility. The principles behind STRmix? are outlined in this study and include standard mathematics and modeling of peak heights and variability in those heights. All PG methods generate a likelihood ratio (LR) and require the formulation of propositions. Principles underpinning formulations of propositions include the identification of reasonably assumed contributors. Substantial data have been produced that support precision, error rate, and reliability of PG, and in particular, STRmix?. A current issue is access to the code and quality processes used while coding. There are substantial data that describe the performance, strengths, and limitations of STRmix?, one of the available PG software. 相似文献
937.
Various methodological approaches to constructing external and internal benchmarks have been applied to estimate racial bias in police stop, question, and frisk (SQF) patterns. We apply an external benchmark of the race of the residential population and an internal benchmark of similarly-situated stops to estimate if racial disparities in New York City SQF data were impacted by the Floyd, et al. v. City of New York court settlement. We find that after the settlement, the racial composition of census tracts were no longer significant predictors of the stop rate after controlling for reported crime, socioeconomic factors, and police precincts. We further find that differences in SQF outcomes and hit rates between Blacks and Hispanics and similarly-situated others diminished substantially after the settlement. These findings suggest that court reforms may be an effective method for reducing racial disparities in SQF patterns. 相似文献
938.
John D. Jackson 《Journal of law and society》2019,46(Z1):S115-S135
This article charts how security‐cleared counsel have been constructed as a mechanism for managing the tension between security and fairness in secret trials and transferred across national boundaries as an example of ‘best practice', before going on to evaluate recent cross‐cultural and transnational research on this ‘best practice'. Particular attention is paid to the central role played by the European Court of Human Rights (ECtHR) in promoting the role of ‘special advocates’ and a contrast is made between the methodologies deployed by the Court and those used in recent research to identify and problematize ‘best practice’ within the closed world of security‐cleared counsel. The article then goes on to explore the relationship between ‘best practice’ and procedural tradition and argues that normative solutions advancing ‘best practice’ need to pay careful attention to the procedural contexts and cultures in which they are embedded. 相似文献
939.
940.
John M. MacDonald 《Justice Quarterly》2019,36(4):656-681
The current study builds on prior research examining racial disparities in sentencing. Entropy weighting is introduced as a new method for estimating racial disparities that has several advantages over traditionally used methods. Entropy weighting is compared to regression and propensity score methods in estimating Black-White disparities in incarceration sentences. Although all methods find non-significant racial disparities in incarceration sentences, regression and propensity score methods underestimate disparities in incarceration sentence lengths. Entropy weighting provides comparable estimates to propensity score methods, but assures that the samples are identical on all covariates aside from race. The method offers researchers a useful and flexible approach for estimating racial disparities in criminal justice, and its use may lead to alternative conclusions about the size and presence of racial disparities in sentencing. 相似文献