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791.
792.
目的利用蛋白检测的快速性优势,研究不同性别在SMCY抗原氨基酸序列的差异,筛选出特异性氨基酸序列,并克隆表达性别特异融合抗原,制备相应抗体,建立一种快速鉴别法医物证性别的方法。方法通过对人SMCY和SMCX进行序列分析,发现了三段差异片段,采用搭桥PCR方法获得差异片段全长基因,连接入p ET-28a载体进行原核表达,用Ni柱纯化后的性别特异融合抗原免疫制备多克隆抗体,用ELISA法和western blot检测SMCY多抗与抗原的反应特异性,制作胶体金试纸条检测样本。结果筛选出具有性别特异性的氨基酸序列,获得SMCY性别特异融合抗原,成功制备出多克隆抗体及胶体金试纸条。结论获得SMCY性别特异融合抗原具有很好的抗原活性,制备的多克隆抗体可以与抗原特异性地结合,用于性别鉴定。 相似文献
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795.
目的利用腭皱数字图像识别系统对正畸治疗前后腭皱形态匹配正确率的分析研究,为法医学中同一认定提供理论依据。方法利用正畸患者治疗前后腭皱形态数字图像,通过腭皱数字图像识别系统对图像的特征进行提取并收录到腭皱数字库,运用Matlab软件完成对腭皱形态数字图像的信息匹配处理。结果正畸治疗前后,个体性检测匹配正确率各自都达到100%。正畸治疗前后腭皱形态匹配正确率为95.67%,配对检验结果 P0.05,具有统计学意义。结论腭皱形态具有高度的个体特异性,正畸治疗后腭皱形态会发生多种变化,但对同一认定的影响不大。腭皱形态识别为法医学同一认定提供一种新的方法和途径。 相似文献
796.
A View to the Future: A Novel Approach for 3D–3D Superimposition and Quantification of Differences for Identification from Next‐Generation Video Surveillance Systems
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Daniele Gibelli M.D. Ph.D. Danilo De Angelis D.S.S. Ph.D. Pasquale Poppa B.Sc. Ph.D. Chiarella Sforza M.D. Cristina Cattaneo B.Sc. M.D. Ph.D. M.A. 《Journal of forensic sciences》2017,62(2):457-461
Techniques of 2D–3D superimposition are widely used in cases of personal identification from video surveillance systems. However, the progressive improvement of 3D image acquisition technology will enable operators to perform also 3D–3D facial superimposition. This study aims at analyzing the possible applications of 3D–3D superimposition to personal identification, although from a theoretical point of view. Twenty subjects underwent a facial 3D scan by stereophotogrammetry twice at different time periods. Scans were superimposed two by two according to nine landmarks, and root‐mean‐square (RMS) value of point‐to‐point distances was calculated. When the two superimposed models belonged to the same individual, RMS value was 2.10 mm, while it was 4.47 mm in mismatches with a statistically significant difference (p < 0.0001). This experiment shows the potential of 3D–3D superimposition: Further studies are needed to ascertain technical limits which may occur in practice and to improve methods useful in the forensic practice. 相似文献
797.
医学会从事医疗损害鉴定之合法性研究 总被引:1,自引:0,他引:1
本文回顾了我国医疗纠纷鉴定体制发展历程,分析了医学会鉴定与司法鉴定的优缺点。在此基础上。认为在现阶段,医学会参与医疗损害鉴定具有一定的、但并不充分的法律依据,具有相对的合法性,医学会应属“准”法定鉴定部门。可以通过最高人民法院制定司法解释或卫生部制定规章的方式使其尽快“转正”。尽管如此,医学会作出的鉴定结论并不具有必然的证明力,其鉴定程序和鉴定书形式等亦应符合法律规定.而鉴定人署名并出庭接受质证是其鉴定结论被法院采信的前提条件。 相似文献
798.
The ‘personalization of politics’ hypothesis assumes that personalization takes place in election campaigns, in the mass-media, and in the calculus of voting. We claim that the distinction between person/leader and organization implicitly assumed by the personalization hypothesis does not capture how voters observe politics. In contrast, our hypothesis is that evaluation criteria regarding parties and leaders are not in competition but reinforcing. This hypothesis is investigated by looking at the relevance of party and leader evaluations for vote choice in the German Federal Elections in 1998, 2002, 2005, and 2009. The results show that party evaluation matter more than leader evaluation and, more importantly, a match of parties and their leaders with regard to general evaluations determine vote choice as good as single evaluations together. 相似文献
799.
No Identification Without Representation: Constraints on the Use of Biometric Identification Systems
The human species is again becoming nomadic. Each year, about two billion persons move across large geographic distances (not to mention people in “virtual mobility” through information and communication technology). Many of these people have weak or unreliable identification documents—and many poorer people in developing countries do not even have these documents. In 2000, the United Nations Children's Fund (UNICEF) calculated that 50 million babies (41% of births worldwide) were not registered at birth. In this scenario, a personal identification scheme based on birth registration and state‐issued passports is less and less tenable. Biometrics appears to offer a viable technological solution. However, the technology itself is subject to popular critique, warning of dystopian futures of overwhelming surveillance and loss of privacy. The best answer to those who fear an Orwellian future is to engage with the technology and seek to ensure that biometric identification systems are developed in positive ways. We suggest that identification schemes become problematic when the reciprocity of identification goes unnoticed, forgotten, or (what is worse) is intentionally bypassed. The dynamics of identification should be reciprocal, dialogical, and involving mutual recognition. In the traditional political domain, this is the recognition by the state of a citizen and by the citizen of the state. In the digital age, identification systems must increasingly transcend geopolitical borders. A globally recognized identification scheme is therefore a necessity. However, it is merely the nature of the borders that has changed here—not the nature of identification. Our call will be: no identification without representation. 相似文献
800.
Se Jin Song Ph.D Nicholas Harrison M.F.S. Rob Knight Ph.D. David O. Carter Ph.D. Christopher B. Happy M.D. 《Journal of forensic sciences》2019,64(3):791-798
Microbes can be used effectively as trace evidence, at least in research settings. However, it is unknown whether skin microbiomes change prior to autopsy and, if so, whether these changes interfere with linking objects to decedents. The current study included microbiomes from 16 scenes of death in the City and County of Honolulu and tested whether objects at the scenes can be linked to individual decedents. Postmortem skin microbiomes were stable during repeated sampling up to 60 h postmortem and were similar to microbiomes of an antemortem population. Objects could be traced to decedents approximately 75% of the time, with smoking pipes and medical devices being especially accurate (100% match), house and car keys being poor (0%), and other objects like phones intermediate (~80%). These results show that microbes from objects at death scenes can be matched to individual decedents, opening up a new method of establishing associations and identifications. 相似文献