Determination of Adenosine Phosphates in Rat Gastrocnemius at Various Postmortem Intervals Using High Performance Liquid Chromatography

Abstract: Although the change in adenosine phosphate levels in muscles may contribute to the development of rigor mortis, the relationship between their levels and the onset and development of rigor mortis has not been well elucidated. In the current study, levels of the adenosine phosphates including adenosine triphosphate (ATP), adenosine diphosphate (ADP), and adenosine monophosphate (AMP) in gastrocnemius at various postmortem intervals of 180 rats from different death modes were detected by high performance liquid chromatography. The results showed that the levels of ATP and ADP significantly decreased along with the postmortem period of rats from different death mode whereas the AMP level remained the same. In addition, it was found that changes in the ATP levels in muscles after death correlated well with the development of rigor mortis. Therefore, the ATP level could serve as a reference parameter for the deduction of rigor mortis in forensic science.     

对运用电脑绘制犯罪现场图技术存在问题的思考

目前,全国各级公安机关根据公安部的统一要求,除了绘制犯罪现场草图外,均要求用电脑绘制犯罪现场正式图,这也是公安执法规范化的具体要求之一。经过十多年的不断努力,运用电脑绘制犯罪现场图技术得到了长足的发展,然而,当前各级公安机关在利用电脑绘制现场图时却仍然存在具体操作上的难点,希望得到进一步的完善和解决。     

中国农民利益表达机制之完善研究

我国当前农民利益表达机制的不完善和诉求管道的堵塞严重损害了农民群体的利益,导致农民对政府的不信任感甚至敌对感持续增强,这为政府政策的落实带来诸多障碍,有效的利益表达机制的构筑已成为燃眉之急。针对当前我国农民利益表达机制中存在的问题,笔者认为,应当从利益表达的主体、客体、渠道、载体、工具五个方面入手,进一步完善现有的利益表达机制。     

Shoot/No-Shoot Decisions: Dissociation,Judgment, and Assailant/Weapon Characteristics

Shoot/no-shoot decisions in law enforcement are under increasing scrutiny nationwide. However, little research has addressed the ways in which factors related to assailants and weapons influence these decisions. In the present research, images of adult male, adult female, and juvenile (female) assailants presented simulated direct threats to respondents. Assailants were armed with a pistol, a knife, or a glass bottle. Respondents were asked to indicate whether or not they would shoot in the presence of these threats. Respondents also completed the Dissociative Experiences Scale (DES). Tendencies toward dissociation, a process generating a sense of unreality, influenced the performance of males who shot; more dissociated men took more time to fire. However, dissociation did not influence the performance of women. Sex and youth of the assailant had no effects on the shoot/no-shoot performance of either men or women, and oddly, weapon type had no significant effect on women’s performance, although men were more likely to fire on an assailant of either age or sex armed with a gun or knife than a bottle. These results are discussed in terms of relevance for law enforcement training and for juridical proceedings in shoot/no-shoot cases.     

关于高校物资实行政府采购的思考

按照政府采购法的要求,高校物资应实行政府采购。但这一采购模式目前仍处于尝试阶段,高校采购部门对其认识也不太明确,如何正确认识、实施政府采购以及实施政府采购过程中需注意哪些问题值得我们思考。     

人民监督员制度的反思与建构

为了顺应公民参与司法的国际化潮流,加强检察机关查办职务犯罪案件的外部监督机制,创立了人民监督员制度。人民监督员制度无疑具有科学性与合理性,但是在发展过程中也确实存在着一些问题,须对人民监督员制度进行立法整合。     

对贫富差距与构建和谐社会的思考

和谐社会是一种理想的社会发展状态,是我们为之不懈努力的发展目标。构建社会主义和谐社会,是我们党落实科学发展观的重大战略举措。当前我国存在着一些不和谐与不协调的因素,其中贫富差距过大是其重要因素之一。贫富差距过大是构建和谐社会的最大障碍,已引起了社会各界的广泛关注。本文从我国社会贫富差距过大的现状中分析了产生原因和贫富差距对构建和谐社会的影响,提出了构建和谐社会的应对措施。     

近距离枪弹创身入口残留物的能谱测定

对１４例近距离人体枪弹创射入口的创周皮肤和创道内组织分别作了能谱测定，结果发现，创周皮肤和创道内组织上的金属成份有着异，而与异物颗粒形态无关，创道内主要为弹头成份，创周为火药成份。     

溺死大鼠肺组织水通道蛋白1的表达

目的检测生前溺死与死后抛尸的肺组织水通道蛋白的表达。方法取2种死亡方式条件下大鼠肺组织,用免疫组织化学方法检测肺组织中水通道蛋白1表达的分布特征。结果两种死亡条件下肺泡间质和支气管周围的毛细血管内皮及肺泡上皮均有AQP1的阳性表达,但积分光密度值(intergratedopticaldensity,IOD)值有显著性差别。结论AQP1在大鼠两种溺死条件下表达差别有统计学意义。     

液压冲击脑损伤后细胞间粘附分子表达的研究

目的测定外伤性脑损伤后脑内细胞间粘附分子(ICAM-1)的变化。方法用大鼠液压冲击脑损伤致伤模型制作大鼠脑损伤,伤后2、4、8、12、24h取脑组织,用免疫组织化学方法染色并用MIAS图像分析系统进行图像分析。结果脑损伤后2h即可见ICAM-1在脑内表达上调,12h达高峰,24h已回落。结论测定I-CAM-1在脑内的变化情况,可为推断24h以内脑损伤形成时间及伤后存活时间提供参考。