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Leigh Hlavaty M.D. Jeffery Amley B.S. Kelly Root B.F.A. Sarah Avedschmidt M.D. Andrea Jaworski B.S. LokMan Sung M.D. 《Journal of forensic sciences》2020,65(2):500-507
When interpreting firearm injuries, the distinction between gunshot wounds and shotgun wounds is important, and separation of these categories is typically straightforward. However, .410 bore firearms can make the classification difficult. Shotguns and revolvers that can fire the same .410 bore ammunition are readily available. This study investigates the soot and gunpowder deposits and pellet patterning of these two types of weapons using cartridges specially designed for .410 bore revolvers and standard birdshot pellet ammunition. For both ammunition types, the revolver had more prompt pellet dispersion and positive detection of gunpowder at greater distances compared to the shotgun. Additionally, .410 bore slugs are of similar caliber to many common bullets. In comparing the .410 bore slugs to equivalent bullets, some morphologic differences may be imparted on the skin by the slugs, but the greatest insight into the weapon remained with the retained projectiles. 相似文献
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Raymond H. Starr Jr. 《Journal of family violence》1990,5(4):311-319
The knowledge base supporting child abuse treatment and prevention rests upon clinical experience and applied research. An analysis of program funding in the United States indicates that unevaluated clinical programs are funded rather than research or program evaluation projects. Grant funding patterns for the National Center on Child Abuse and Neglect were analyzed for 4 years. Overall, 66% of projects had no research or evaluation component. Without such programs, we cannot determine the effectiveness of treatment and prevention efforts that, while well intended, may have no effects on the participating parents and children, or, worse still, may have unintended negative consequences. Quality programs must be based on the maintenance of a balance between research and clinical efforts with evaluation being an important component of the latter.Portions of this paper were presented at the Seventh International Congress on Child Abuse and Neglect, Rio de Janeiro, Brazil, 27 September, 1988. 相似文献
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Raymond Paternoster Charles W. Dean Alex Piquero Paul Mazerolle Robert Brame 《Journal of Quantitative Criminology》1997,13(3):231-266
A number of criminological theories make either implicit or explicit predictions about the empirical relationship between prior and future offending behavior. Some argue that time-stable characteristics such as criminal propensity should account for any positive correlation between past and future criminal behavior for all individuals. Others contend that the positive association between offending behavior at different points in time are partly causal and partly spurious. Still others anticipate that different patterns will emerge for different groups (distinguished by their ciminal propensity) of individuals. Using a longitudinal data set comprised of 848 training school releasees, we test various hypotheses emanating from these different theoretical perspectives. The results indicate that (1) both stability and change have causal implications for one's offending behavior and (2) with but one exception, these effects do not vary between high and low criminal propensity groups. 相似文献
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J. Paul Leigh 《Public Choice》1994,78(3-4):373-387
In this study, the distribution of inspection laws across states is endogenously determined by the relative strengths of lobbying groups within states. Previous studies that treat the laws as exogenous and find a 5 to 15 percent reduction in fatalities may have produced biased results. A selection bias model is developed in which non-random assignment is taken into account. Two equations are estimated: one explaining how many inspections are required, and the other explaining the effects of the inspections on fatalities per capita. Using single-equation techniques, results are obtained that are similar to prior studies. In the two-equation model that accounts for non-random assignment, inspection laws are not found to significantly reduce fatalities per capita. 相似文献
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This study tested a developmental hypothesis with respect to Fear of Success (FOS), Identity Status, and the relationship between the two. Forty college students, equally divided between regular college-age women (18–23) and adult college women (over age 30), were given a multiple-choice and a projective measure of FOS; they were then interviewed regarding exploration and commitment in five content areas: vocation, family vs. career priority, politics, religion, and sex roles. The hypothesis that the adult students would exhibit less FOS than their college-age counterparts was confirmed with both measures of FOS. Chi-square analysis also revealed that a significantly higher proportion of the adult students was classified as identity-achieved and a lower proportion as identity-diffuse than the college-age students. The influence of life experience on the relationship between FOS and each identity status could not be tested due to an insufficient number of identity achievers in the college-age subsample; when the relationship of FOS to identity status was examined for the total sample, however, foreclosures and achievers manifested significantly less FOS than diffusions and moratoriums.Doctoral candidate in developmental psychology with major interests in adolescent and adult learning and development.Associate Professor, interested primarily in personality and developmental psychology with emphasis on ego and moral development. 相似文献