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Carolyn V. Isaac Ph.D. Jered B. Cornelison Ph.D. Rudolph J. Castellani M.D. Joyce L. deJong D.O. 《Journal of forensic sciences》2018,63(2):602-607
Pediatric abusive head trauma is a challenging subject across many disciplines. Of particular importance is the identification of mimics of abuse, so cause and manner of death can be properly assigned. We present the case of suspected child abuse involving an infant who presented unresponsive to the hospital with hypoglycemia, hypothermia, and bilateral parietal fractures. An autopsy revealed fractures associated with organizing scalp hemorrhage and gross leptomeningeal congestion and hemorrhage. The fractures were circular with external displacement, rounded margins, and subperiosteal new bone formation indicative of healing. Birth records revealed vacuum assist and cesarean section delivery. Although vacuum extraction‐related injuries are typically cephalohematomas and/or linear fractures, the outbending and circular morphology of the fractures are consistent with vacuum extraction. Moreover, microscopic neuropathological examination revealed hemorrhagic purulent leptomeningitis. This unique case demonstrates the importance of considering birth trauma in the determination of cause and manner of death of an infant. 相似文献
43.
The “Hired Gun” Effect: Assessing the Effect of Pay,Frequency of Testifying,and Credentials on the Perception of Expert Testimony 总被引:1,自引:0,他引:1
Three experiments addressed the proposition that jurors use short cuts in processing information when confronted with expert scientific testimony. The results of the first two studies demonstrated that experts who are highly paid for their testimony and who testify frequently are perceived as hired guns. They are neither liked nor believed. The results of the third experiment replicated the hired gun effect and showed that it is most likely to occur when the testimony is complex and cannot be easily processed. The results were discussed in terms of the theoretical differences between central and peripheral processing of persuasive messages in a legal context. 相似文献
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Isaac Lawther 《Third world quarterly》2017,38(10):2312-2329
Ten years ago, China and several African countries began to develop agricultural training centres, and opened the door for a cascade of optimism and pessimism on why China is interested in developing agricultural partnerships in Africa. Seldom has the appeal of such partnerships for African countries been explored, hence limiting our capacity to fully understand the dynamics of Sino–African agricultural relations. This article addresses the issue by examining why some African countries are interested in partnering with China in agricultural development. This article is based on 44 interviews that were conducted in 2015 at the Sino–African agricultural training centres in Rwanda and Uganda. I argue that Rwanda and Uganda seek to partner with China, as China can offer intermediary agricultural technologies that enable these respective countries to implement aspects of their domestic agricultural development plans. The article also provides reason to challenge the existing optimistic and pessimistic conventions about Sino–African agricultural affairs. 相似文献
47.
Isaac Kfir 《冲突和恐怖主义研究》2014,37(6):457-472
Individual basic security is limited in Pakistan as the state is institutionally weak. One way to attain basic security is by joining groups who provide security and services. Consequently, groups not part of the political mainstream, to attract a following, must therefore show that they are sufficiently powerful to obtain concessions from established actors. Thus, by engaging in violence primarily of a sectarian nature, the Pakistani Taliban sustains itself as a unified force while also highlighting that it is a powerful group, which in turn it hopes would enable it to curve a political space and win concessions from the established elite. Using social group identity theory, club goods, and the economics of extremism, the article highlights why the Pakistani Taliban has increasingly attacked minorities and why more must be done to address sectarian violence. 相似文献
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Isaac Kofi Mensah 《国际公共行政管理杂志》2020,43(4):303-311
ABSTRACTThis study explored the impact of government capacity and e-government performance on the adoption of e-government services by integrating it into the Technology Acceptance Model (TAM). The results showed that both government capacity and government performance were significant determinants of the perceived usefulness of e-government services. Also, government capacity was revealed to positively predict e-government performance. In addition, perceived usefulness of e-government services was found to be a significant predictor of the intention to recommend the adoption of e-government services. The implications of these findings on the implementation of e-government are discussed. 相似文献
50.
Andrew M. Sacha BS Isaac C. Willis BS Victoria L. McGuffin PhD Ruth Waddell Smith PhD 《Journal of forensic sciences》2023,68(5):1527-1541
Definitive identification of fentanyl analogs based on mass spectral comparison is challenging given the high degree of structural and, hence, spectral similarity. To address this, a statistical method was previously developed in which two electron-ionization (EI) mass spectra are compared using the unequal variance t-test. Normalized intensities of corresponding ions are compared, testing the null hypothesis (H0) that the difference in intensity is equal to zero. If H0 is accepted at all m/z values, the two spectra are statistically equivalent at the specified confidence level. If H0 is not accepted at any m/z value, then there is a significant difference in intensity at that m/z value between the two spectra. In this work, the statistical comparison method is applied to distinguish EI spectra of valeryl fentanyl, isovaleryl fentanyl, and pivaloyl fentanyl. Spectra of the three analogs were collected over a 9-month period and at different concentrations. At the 99.9% confidence level, the spectra of corresponding isomers were statistically associated. Spectra of different isomers were statistically distinct, and ions responsible for discrimination were identified in each comparison. To account for inherent instrument variations, discriminating ions for each pairwise comparison were ranked based on the magnitude of the calculated t-statistic (tcalc) value. For a given comparison, ions with higher tcalc values are those with the greatest difference in intensity between the two spectra and, therefore, are considered more reliable for discrimination. Using these methods, objective discrimination among the spectra was achieved and ions considered most reliable for discrimination of these isomers were identified. 相似文献