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排序方式: 共有105条查询结果,搜索用时 62 毫秒
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The authors describe a road accident that occurred in the Trieste region of Italy in 1998, wherein a pedestrian experienced a mortal injury. During the on-site examination, the forensic officer in charge noticed, in addition to dispersed abrasions, bruises, and fractures, an unusual position of the head with a highly unusual motility of the cervical rachis and, above all, an apparent whitish fibrous elastic cord, 7-8 cm long, which came out of the mouth. The cord was found to be a segment of the spinal cord, expelled and driven into the mouth cavity by the impact. This represents an interesting case because of the specific dynamics of the accident and the type of lesion involved. This kind of spinal cord injury, in particular, is infrequent among pedestrians involved in road accidents in comparison with other road casualties.  相似文献   
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Material recovered from 374 fingerprints left by eleven laboratory workers on three different substrates (glass, wood, metal) at a standard pressure time of 30 s, with and without preliminary handwashing, was submitted to morphological, quantitative, and type analysis. Morphological and agarose-gel electrophoresis analysis showed that a non-negligible amount of epidermal corneal cells presented apoptotic alterations. The quantity of DNA recovered from fingerprints ranged between 0.04 to 0.2 ng, and in a significant number of experiments no DNA was detected. Handwashing reduced the amount of DNA recovered from fingerprints. The "shedder status" of the donor was a very important factor, causing inter-individual variations in the amount of DNA left by fingerprints. Spurious alleles from laboratory-based and secondary transfer contamination, stutters, and other artifacts described when analyzing low-copy-number DNA and capable of affecting correct profiles were observed.  相似文献   
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Since its introduction, colonoscopy has played an important role as a diagnostic, therapeutic, and screening tool. In general, colonoscopy is regarded as a safe procedure, but complications may occur. The most dreaded of these complications is colonic perforation. Bacteremia postprocedure may occur, and although it is not uncommon, it rarely results in clinically significant complications. Patients with IBD (inflammatory bowel disease) are a high‐risk population for bacteremia, which may leads to bowel wall overstepping by the bacteria. With regard to that, we report a fatal case of gas gangrene complicating colonoscopy polypectomy without bowel perforation in a healthy adult. To the best of our knowledge, only two other cases of retroperitoneal gas gangrene associated with colonoscopy polypectomy without bowel perforation have been described in international literature, but none of which was completed by a molecular biology analysis.  相似文献   
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The commitment of the EU to the external promotion of the respect for human rights allegedly distinguishes its foreign policy from that of traditional powers. Yet there is the perception that EU's statements are not always consistent with internal practices. This article analyses one set of EU's inconsistencies that has not been sufficiently studied: the discrepancy between internal and external human rights standards. The article focuses on the promotion and protection of freedom of religion or belief, which has become a priority of the EU's foreign policy. It is submitted that the EU's external position generally reflects values common to the Member States, but is sometimes contradicted by the practice of domestic authorities. The human rights standards identified in the EU's foreign policy may arguably serve as a reference for legal reform and the interpretation of fundamental rights in Europe.  相似文献   
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In electrocutions, death may be caused by alterations in the heart conduction system provoking ventricular fibrillation. This study aims to identify histological cardiac markers of high- and low-voltage electrocution. Two groups of decedents were evaluated: group A included 14 fatalities caused by high- or low-voltage electrocution and group B (control) included 14 fatalities due to other traumatic or disease causes. Myocardial sampling with microscopic examination was performed on all the hearts using the hematoxylin and eosin and Masson's trichrome stains to investigate morphological characteristics that could indicate the damage caused by high- and low-voltage electrocutions. Interstitial myocardial hemorrhagic infiltration was the only differentiating finding, which was shown only in high-voltage electrocution. This pathological finding has not been previously reported, and it may be specific to high-voltage electrocution deaths. Further studies are warranted.  相似文献   
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Research shows that peacekeepers reduce conflict intensity; however, effects of deployment on nonpolitical violence are unknown. This article focuses on criminal violence and proposes a twofold mechanism to explain why peacekeeping missions, even when effectively reducing conflict, can inadvertently increase criminal violence. First, less conflict opens up economic opportunities (so‐called peacekeeping economies) and provides operational security for organized crime, thus increasing violent competition among criminal groups. Second, demobilized combatants are vulnerable to turn to crime because of limited legal livelihood opportunities and their training in warfare. While UN troops may exacerbate these dynamics, UN police's peculiar role is likely to successfully contain criminal violence. Cross‐national and subnational empirical analyses show that large UN military deployments result in higher homicide rates, whereas UN police, overall, moderate this collateral effect.  相似文献   
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