脑外伤者血浆NSE含量与损伤程度的相关性

目的探讨血浆中神经元特异性烯醇化酶（NSE）含量与创伤性脑损伤程度的关系及法医学意义。方法选取25名健康体检者、34名颅脑损伤患者作为研究对象,根据入院时的GCS评分,将颅脑损伤患者分为轻中型组（GCS≥8分）和重型组（GCS〈8分）。用酶联免疫法对上述研究对象血浆中神经元特异性烯醇化酶含量进行检测。结果在脑外伤24h内,颅脑损伤组血浆中神经元特异性烯醇化酶含量较正常对照组升高,差异有统计学意义（P〈0.05）,重型组与轻中型组相比,差异有统计学意义（P〈0.05）,血清中血浆中神经元特异性烯醇化酶含量越高,患者颅脑损伤程度越严重。结论神经元特异性烯醇化酶可作为早期检测创伤性颅脑损伤的特异性指标,其含量越高,颅脑损伤程度越重。     

P物质在过敏性休克家兔胃肠道内的表达

目的观察P物质在过敏性休克家兔胃肠道组织中随时间变化的规律,探讨其在过敏性休克中的作用。方法 30只家兔随机分为实验组(24只)和对照组(6只)。实验组采用多人混合血清致敏家兔,建立过敏性休克模型。休克不同时间段(猝死即刻、休克0.5h、休克1h、休克2h)提取家兔胃、小肠、圆小囊。冰冻切片,应用免疫组化(IHC)SP法和原位杂交(ISH)方法进行P物质染色,BI-2000计算机图像分析系统进行图像分析,计算阳性积分光密度值(IOD),用SPSS11.5统计软件进行方差分析,SNK检验。结果与对照组相比,实验组各小组胃、肠、圆小囊P物质蛋白和mRNA表达明显增加,且随着休克时间的变化逐渐减弱(P0.001)。IHC方差分析结果为:胃组织F=198.008,肠组织F=56.796,圆小囊组织F=67.231;ISH统计学分析方差分析结果为:胃组织F=67.506,肠组织F=72.117,圆小囊组织F=216.798。结论家兔胃肠道P物质在过敏性休克后一段时间内(2h)均表达增高,随休克时间的延长逐渐下降。     

UNIX系统取证的内容搜索方法研究

大量重要的应用服务器或网络服务器使用可靠性强的UNIX操作系统。研究UNIX系统下常用的内容搜索技术及其原理,可以减少取证分析过程中需要检查的数据量,快速挖掘有效证据。UNIX环境下的搜索工具在静态取证分析中的应用研究,可以帮助调查人员在证据收集和分析过程中缩小检查的数据范围,提高取证分析效率。     

A study of user data integrity during acquisition of Android devices

At the time of this writing, Android devices are widely used, and many studies considering methods of forensic acquisition of data from Android devices have been conducted. Similarly, a diverse collection of smartphone forensic tools has also been introduced. However, studies conducted thus far do not normally guarantee data integrity required for digital forensic investigations. Therefore, this work uses a previously proposed method of Android device acquisition utilizing ‘Recovery Mode’. This work evaluates Android Recovery Mode variables that potentially compromise data integrity at the time of data acquisition. Based on the conducted analysis, an Android data acquisition tool that ensures the integrity of acquired data is developed, which is demonstrated in a case study to test tool's ability to preserve data integrity.     

产前超声检查医疗纠纷4例分析

通过选取4例经人民法院判决的因产前超声检查引发的医疗纠纷案例,探讨此类案件医疗过错、损害后果及其两者之间因果关系的判定原则。在判定医疗过错时应关注产前检查的规范性,正确看待医疗机构的差异性,并适当考虑时间性因素。此类医疗损害的后果一般均为使有发育缺陷的婴儿出生,医疗过错与损害后果因果关系的分析则不同于一般医疗纠纷案件,存在特殊性,需特别慎重。     

浅议建筑工程质量司法鉴定的特点、原则及其应用

建筑工程质量司法鉴定是司法鉴定的重要组成部分,通过对其特点、原则进行了分析,并结合广东省东莞市的具体工程案例介绍了其应用实况。     

Experimental Study of Bite Mark Injuries by Digital Analysis

Abstract: This study was based on a morphometric analysis of bite marks starting from the quantitative definition of the anterior teeth by the geometric acquisition of the “injuries,” using bite marks impressed on pig skin and plastic. Each mark was photographed and acquired. A dedicated program automatically supplied the values of the shape factors and the areas of the pattern geometric figures. The values obtained for the homologous samples were compared to the heterologous values. Statistical comparison was made of the sets by linear regression, determining the correlation coefficient and the determination coefficient for each value. Results showed only 4.8% and 2% of overlap between homologous and heterologous values. This study was carried out in attempting to quantitatively define the anterior teeth of the human dentition and the procedure described and the results obtained support the advantage of morphometric studies and computer‐aided programs in this study of bite marks.     

司法鉴定标准化实现机制探讨

司法鉴定标准化一直是司法鉴定理论界和实务界追求的理想。众多学者认为要确保司法鉴定的公信力,就必须设立司法鉴定标准,走标准化的道路。对于标准化的内涵有必要从标准的理论出发进行重新解读,并提出标准化的实现前提、实现过程及应关注的问题。     

Understanding Children's Use of Secrecy in the Context of Eyewitness Reports

To investigate socioemotional influences on children's eyewitness accuracy, we examined children's reports for activities they were motivated to conceal. Forty-eight 3–6-year-old children participated in a standardized play session with their mothers. Half of the children were told by an experimenter not to play with certain toys, but did so at the urging of their mothers, who told their children to keep the play activities secret. The remaining children were not restricted from playing with the toys, nor told by their mothers to keep the play activities secret. Later, all children were interviewed about the activities with free narrative and detailed questions. Half were given an interview that consisted of highly suggestive questions; half were given an interview consisting of specific, less suggestive questions. Results indicated that older children who were instructed to keep events secret withheld more information than did older children not told to keep events secret. Younger children's reports were not significantly affected by the secret manipulation. There were no significant effects associated with interview type. We discuss implications for understanding the development of children's knowledge and use of secrecy, and applications of the research to issues that arise when child witnesses give reports in legal contexts.     

血管内皮细胞生长因子的研究及应用

血管内皮细胞生长因子(VEGF)是一种特异作用于血管内皮细胞的多功能细胞因子,它促使血管内皮细胞分裂增殖、增生、转移,增加血管通透性并促进新血管生成,参与体内的多种生理、病理过程,在临床医学上已获得较多应用,在法医病理学方面将有广泛的应用前景。