Blunt Craniofacial Trauma as a Manifestation of Excited Delirium Caused by New Psychoactive Substances

The body of a 19‐year‐old male was found apparently concealed underneath bushes with recent head and facial trauma, and multiple superficial abrasions. Subsequently, it was discovered that the decedent had been running into objects and buildings following the ingestion the evening before of what was thought to be lysergic acid diethylamide (LSD). Blood staining of a nearby wall close to where the body was lying was in keeping with the described behavior. Toxicology revealed 3,4‐methylenedioxymethamphetamine (Ecstasy), in addition to two only recently available drugs 2‐(4‐bromo‐2,5‐dimethoxyphenyl)‐N‐[(2‐methoxyphenyl)methyl]ethanamine, (25B‐NBOMe), and 1‐(3,4‐methylenedioxyphenyl)‐2‐(1‐pyrrolidinyl)‐1‐butanone, (MDPBP). At autopsy, the skull was fractured with cerebral swelling, contusions, and subarachnoid hemorrhage. Death was due to blunt cranial trauma against a background of mixed drug toxicity. The case demonstrates a rare cause of death in a drug‐induced acute delirium, as well as highlighting two new designer street drugs that may result in significant aberrant behavior.     

二代测序技术在法医学中的应用进展

近几年二代测序(second generation sequencing,SGS)技术的快速发展,使其在通量增大、读长增加的同时测序成本大幅降低,给生物学领域带来了新的突破,也使法医遗传学进入了一个新的发展阶段。本文从测序技术在法医遗传学的应用历程展开,回顾了测序技术对法医学遗传标记检测的重要性。以已有相关法医学研究应用的Roche、Illumina和Life Technologies三大测序技术公司推出的二代测序技术平台为例,探讨其在法医遗传学中的应用现状及潜能。目前可依赖这些平台完成DNA水平遗传标记(SNP、STR)、RNA水平遗传标记(m RNA、micro RNA)及线粒体DNA全基因组的测序。然而,技术产品的推出及验证、分析软件的成熟化、与现有数据库的对接、大数据使用中的伦理问题等都是决定该技术能否替代(或补充)成熟PCR毛细管电泳技术以及普遍应用于案件检测的关键。     

Popular post-separation parenting smartphone apps: An evaluation

In recent years a bewildering array of smartphone applications (“apps”) has emerged to support separated parents' communication. Post-separation parenting apps vary in cost and features; they typically comprise a messaging tool, shared calendar, expense tracker and a means to export records for legal purposes. A key challenge for separated parents and family law practitioners alike is knowing which apps or app feature(s) can work well for different family contexts, needs and budgets. The present study sought to evaluate nine popular post-separation parenting apps and their features using small-n Human–Computer Interaction methods. Mediators role-played high conflict ex-couples while completing a set of five common post-separation communication or organizational tasks. A cross-case analysis of ratings was conducted. We found that (a) many of the mediators changed their apparent enthusiasm for co-parenting apps once they had used the apps themselves; (b) all nine apps were rated somewhere between “Poor” to Fair’; and (c) features of some of the best-known apps were not rated as highly as some of the features of more recent, lesser-known apps.     

Application of RapidHITTM 200 System in Forensic MedicineCSCD

Objective: To validate the analysis capability of RapidHITTM 200 system for four kinds of routine forensic samples and the recyclable capability of template, template DNA and PCR products in the process of twice duplicate detection. Methods: The buccal swabs underwent the test twice by RapidHITTM 200 system, and the template DNA and PCR products that arose in the system were also tested for two times. After four kinds of routine forensic samples were detected by RapidHITTM 200 system, the follow- up tests of the template, template DNA and PCR products that arose in the system were performed. Results: The STR loci could be detected in the buccal swabs by the system for the first time. However, part of the STR loci lost during the second test. And the peak value obtained in the second test was significantly reduced than the one in the first time. The average STR loci detection rates of the template DNA and PCR products were both less than 50% in the second test, which were significantly reduced than that in the first test. In addition, the analysis capability of the system for the tissues and buccal swabs was better than that for the blood and cigarette butts. Compared with the first test, the STR loci detection rate of the tested items, template DNA and PCR products decreased with the numbers of tests. Conclusion: RapidHITTM 200 system is more effective in retesting buccal swabs than other samples, whereas the items, DNA template, PCR products obtained in the first and second time cannot be directly used for the further application and study of forensic medicine. © 2018 by the Editorial Department of Journal of Forensic Medicine.     

社会主义市场经济条件下工会的根本历史使命--对"组织起来,切实维权"的再认识

当今我国市场经济体制日趋完善,与市场经济共生的各类矛盾也相伴而生。在众多矛盾中,劳动关系矛盾非常突出。协调好劳动关系,是构建和谐社会的关键问题。作为协调劳动关系主角的工会,其作用也随之凸显出来。“组织起来,切实维权”作为协调劳动关系的根本原则,理所当然地成为工会工作的指导方针,成为社会主义市场经济条件下工会的历史使命。     

Isolation and Identification of Three By‐products Found in Methylamphetamine Synthesized by the Emde Route

This article describes the isolation and structural elucidation of three compounds produced during the synthesis of methylamphetamine by the so‐called “Emde” procedure. The “Emde” procedure involves the preparation of the intermediate chloropseudoephedrine or chloroephedrine from ephedrine or pseudoephedrine, respectively. The intermediates are then reduced to methylamphetamine with hydrogen under pressure in the presence of a catalyst. The by‐product compounds were isolated from methylamphetamine by column chromatography and liquid chromatography (LC). Proton nuclear magnetic resonance spectroscopy (¹H NMR), carbon nuclear magnetic resonance spectroscopy (¹³C NMR), and nanospray quadrupole‐time of flight‐mass spectrometry (Q‐TOF‐MS) were used to identify them as two stereoisomers of the compound N, N′‐dimethyl‐3,4‐diphenylhexane‐2,5‐diamine and N‐methyl‐1‐{4‐[2‐(methylamino)propyl]phenyl}‐1‐phenylpropan‐2‐amine.     

干细胞治疗神经性勃起功能障碍的研究现状

神经性勃起功能障碍(neurogenic erectile dysfunction,NED)的发生与勃起功能相关神经的损伤密切相关.最近,干细胞对阴茎勃起神经的修复和保护作用的临床前研究已经成为热点.本文综述了神经源性胚胎干细胞(NESCs)、肌源性干细胞(MDSCs)、脂肪源性干细胞(ASCs)和间充质干细胞(MSCs)等在NED方面的研究进展.早期研究显示干细胞或基因修饰的干细胞对ED治疗持久有效,并可能成功治愈ED.干细胞有望应用于NED的临床治疗.干细胞作为新的治疗方法应用于临床后,将会对法医临床学鉴定提出新的挑战.     

刑事责任能力评估工具在司法精神病鉴定中的应用

目前,我国刑事责任能力采用三分法,分为完全责任能力、限定责任能力和元责任能力.但在司法精神病鉴定工作中,由于缺乏客观标准,三者的区分尚带有较大主观性,常导致不同鉴定人对同一案例的责任能力判定存在分歧.因此,刑事责任能力的评定一直是司法精神病鉴定亟待解决的难题.本文综述了在司法精神病鉴定中使用的几种责任能力评定量表及其应用情况,认为虽然目前这类量表的信度和效度存在争议,但其对提高鉴定结果的科学性、客观性提供了一种良好思路.     

尸体血液中乙醇质量浓度的分析评价

血液中乙醇质量浓度是分析评价机体内乙醇水平的重要证据,由于尸体内检测到乙醇可能受死后生成、乙醇扩散等因素影响,尸体血液中乙醇质量浓度检测结果未必能反映其死亡时机体内乙醇的真实水平。鉴别尸体内乙醇是否为原始浓度是分析评价的关键。本文对乙醇在体内的分布特点、如何合理取材及死后乙醇扩散、尸体腐败产生的乙醇对乙醇质量浓度分析的影响进行了综述,并对死后乙醇质量浓度检测的分析评价策略进行了讨论。     

认知伪装的事件相关电位研究进展

在司法精神医学鉴定中,由于涉及个人的利益,有40%～60%的被鉴定人会夸大认知受损的程度。各种心理测验虽然有一定的甄别作用,但对伪装高手的甄别能力有限。本文总结前人利用事件相关电位(event-related potential,ERP)技术研究认知伪装的实验模式、结果及其ERP效应,发现ERP技术对甄别伪装高手具有较高的敏感性和特异性。因此认为,ERP是一种更客观的生理学指标,ERP技术是一种有希望的甄别认知伪装的客观技术。