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81.
Mark A. Giffen D.O. Jr Jason A. Powell M.D. Jerri McLemore M.D. 《Journal of forensic sciences》2018,63(2):631-634
Computed tomography (CT) imaging is increasingly used in emergency departments and trauma services and is being offered as a supplemental tool with autopsy in coroner's and medical examiner's offices throughout the United States. The availability of CT images in lieu of traditional X‐rays for medicolegal autopsies may lead to misinterpretation of images for forensic pathologists who are not familiar with these types of images. Forensic pathologists must become familiar with CT imaging, the basis of CT image formation and how to interpret CT images appropriately. We highlight potential pitfalls of CT image interpretation through two cases of fatal gunshot wounds of the head. Antemortem CT imaging available at the time of autopsy led to discrepancy between the initial image findings and the autopsy due to inexperienced manipulation of the images. With appropriate understanding of CT image interpretation and manipulation, forensic personnel should be able to avoid most sources of misinterpretation. 相似文献
82.
Bailey J. Henwood B.Sc. Tracy S. Oost B.Sc. Scott I. Fairgrieve Ph.D. 《Journal of forensic sciences》2019,64(4):1139-1144
Studies on ballistic trauma to the ribs and thorax, cranium, and long bones demonstrate the potential of obtaining a bullet caliber from an entrance wound. In order to validate prior research on caliber estimation in bone tissue and assess the viability of bullet type determination based on the macroscopic evidence at the entrance wound, thirty fleshed pork (Sus scrofa) shoulders (humeri) were shot with either lead or copper jacketed bullets in one of three calibers; 0.22, 9 mm, or 0.38. Overall, our findings are consistent with previous research indicating that calibers can be grouped into “small” and “large” categories. Bullet type, lead or copper jacket, can be ascertained based on cortical flaking and the analysis of materials deposited around the entry wound. The addition of this evidence holds value in cases where no firearm or ballistic evidence is recovered from a crime scene. 相似文献
83.
目的研究手枪射入口形态特征与射击距离的关系,为射击距离的推断提供依据。方法选择92式手枪,在带皮的猪肉上覆盖白色棉布,设计了0m,0.1m,0.2m,0.5m1.0m,1.5m,3.0m,5.0m,10m,15.0m,20.0m,25.0m共12个射击距离,对白棉布和肉皮上的弹孔进行拍照,对比研究不同射击距离的射入口形态特征,并利用Autocad软件对射入口的面积进行计算。结果白棉布和肉皮上射入口的形态特征与射击距离有一定的相关性。结论根据射入口的形态特征,能够对射击距离进行推断,对涉枪案件中射击距离的判断有参考价值。 相似文献
84.
Anastasia E. Kastanaki M.Sc. Elena F. Kranioti M.D. Pavlos N. Theodorakis M.D. M.Sc. Ph.D. Manolis Michalodimitrakis M.D. J.D. 《Journal of forensic sciences》2009,54(2):404-407
Abstract: In this report, the authors present a case of suicide committed by a 66-year-old man, inside a grave at the local cemetery, with two gunshot wounds to the head. A multiple-paged, handwritten suicide note was found in an army type bag inside the victim’s car, while a second one was found in his house. Medicolegal examination of the body revealed two typical contact gunshot entrance wounds and one exit wound to the head. Toxicological analysis of the femoral blood was negative for alcohol and drugs. The history, scene and autopsy findings, along with further police investigation, indicated an obvious case of suicide. The literature is reviewed and discussed. We report this case as the place of suicide is extremely uncommon and as there is no mention of a gunshot suicide inside a grave in the current literature. 相似文献
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目的 探讨小鼠皮肤切创愈合过程中损伤区M3受体的表达及其随时间的变化规律.方法 应用免疫组织化学染色和Western印迹技术检测小鼠皮肤切创后不同时间段M3受体的变化情况.结果 正常皮肤组织的表皮、毛囊、皮脂腺、汗腺、皮肌层等均表达M3受体.伤后6～12h,损伤区M3受体阳性细胞以多形核粒细胞为主;1～3d,M3受体阳性细胞以单个核细胞和成纤维细胞为主;5～14d,M3受体阳性细胞主要为成纤维细胞.阳性细胞率在伤后6～12h逐渐增高,12h达高峰,1～5d略有下降,但保持较高水平,7d阳性细胞率再次达到峰值,随后逐渐降低.通过Westem印迹法检测显示,各个时间段均有M3受体阳性条带,其中12h和7d为M3受体两个表达高峰.结论 多形核粒细胞、单个核细胞和成纤维细胞均表达M3受体,提示其可能在皮肤切创愈合过程中起重要的作用;M3受体表达的规律性变化可用于损伤时间的推断. 相似文献
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为民营中小企业营造良好的外部环境 总被引：6，自引：0，他引：6
赵小红 《河北省社会主义学院学报》2003,(1):49-51
虽然从改革开放以来 ,作为国民经济重要源泉的民营经济得到了很大的发展 ,但由于其自身的一些原因及对其带有歧视性待遇的外部环境的影响 ,其在发展过程中的障碍重重。本文欲对这些不平等的外部环境———融资难、市场准入不平等、负担过重、政府对其激励和支持力度不够、法律制度不健全等进行分析 ,以及提出一些改进建议 相似文献