Detection limits for GC/MS analysis of organic explosives

Method detection limits are determined and compared for analysis of liquid injections of organic explosives and related compounds by gas chromatography-mass spectroscopy utilizing electron impact (EI), negative ion chemical ionization (NICI), and positive ion chemical ionization (PICI) detection methods. Detection limits were rigorously determined for a series of dinitrotoluenes, trinitrotoluene, two nitroester explosives, and one nitramine explosive. The detection limits are lower by NICI than by EI or PICI for all explosives examined, with the exception of RDX. The lowest detection limit for RDX was achieved in the PICI ionization mode. Judicious choice of the appropriate ionization mode can enhance selectivity and significantly lower detection limits. Major ions are reported for each analyte in EI, PICI, and NICI detection modes.     

STR data for the AmpFlSTR Profiler loci from the three main ethnic population groups (Malay, Chinese and Indian) in Malaysia

Allele frequencies for the nine STRs genetic loci included in the AmpFlSTR Profiler kit were obtained from samples of unrelated individuals comprising 139-156 Malays, 149-153 Chinese and 132-135 Indians, residing in Malaysia.     

Sudden death caused by tension pneumothorax after rupture of a thoracic aortic aneurysm. Case report

A rare case of fatal tension pneumothorax is reported. An aged Japanese man with marked subcutaneous emphysema of the neck was found collapsed in a betting office. He was ascertained to have left tension pneumothorax, based on radiographic examinations carried out before his death. At autopsy, severe pneumomediastinum was observed, and the descending thoracic aorta with a ruptured dissecting aneurysm was closely adhered to the left lung pleura. The hemorrhage spread into the pulmonary parenchyma and finally spouted out from the surface of the lung apex. Because the blood loss itself was not fatal in quantity, it is concluded that the patient died of tension pneumothorax caused by a lung penetration from the rupture of an aortic aneurysm.     

Diagnosis of non-typical myocarditis by applying immunohistochemical method of CD68

OBJECTIVE: To make a distinction between myocarditis and the reaction to some pathological state of myocardium. METHODS: Myocardium of 26 cases with sudden cardiac death were stained and LM light microscopies with immunohistochemical method 10 cases with normal myocardium were contrasted. RESULTS: A great deal of stained positive monocyte of immunohistochemistry emerged in the parasetions of myocarditis patients with various farms and stacking(> 15). CONCLUSION: The stain of immunohistochemistry can be used as one of the indications for diagnosing non-typical myocarditis.     

有机磷农药中毒的人体血液致死浓度探讨

对 4年间 6家医院所有门急诊有关敌敌畏、甲胺磷、乐果三种有机磷农药中毒病例进行了调查分析。运用气相色谱法对其血液中的浓度进行测定。采用 Bliss法,计算其死亡率和昏迷率的加权直线回归方程,并获得其经救治后血液半数致死浓度 LC50、半数致昏迷浓度 CC50。综合文献和临床实践,认为及时的救治对中毒病例的治疗转归有较大影响,其自然的血液半数致死浓度应在经救治的半数致死浓度 LC50和半数致昏述浓度之间。综合半数致死浓度和半数致昏迷浓度,计算其自然的半数致死浓度 LCe50值。     

单核苷酸多态性及其在法医学中的应用前景

单核苷酸多态性是人类基因组中最常见、分布最广泛的DNA多态性类型。随着人类基因组计划的迅猛发展,已有越来越多的单核苷酸多态性位点被发现,使其可以广泛应用于人类遗传性和遗传相关性疾病的诊断、群体遗传学的研究、药物的开发及应用等方面,同样在法医学也具有广阔的应用前景。本文综合介绍了单核苷酸多态性的一般特性及法医学应用前景,包括其应用的可行性、存在的问题及高通量自动化的检测方法。     

复合行政:我国中部区域管理之模式

复合行政以其"多中心"、"交叠"、"自主治理"的主张契合了中部地区发展的需要,是中部区域管理的可行模式。在现行宪政框架下,获得党和政府的支持合作、培育社会的自主治理能力、纳入行政区划调整以及创新管理理念和方法是在中部构造复合行政的四个渐进策略。     

浅议民事执行的检察监督

检察监督本应是对民事执行最为有效也最符合法治规律的外部监督手段,但由于我国民事诉讼法修改时未明确规定检察机关的这一权能,导致目前法院的民事执行活动尚无来自外部的合法有效的监督.民事执行和检察机关的性质决定了检察机关应当对民事执行活动实行法律监督,以充分有效地保护执行当事人、利害关系人的合法权益,规范执行秩序,遏制"执行难"、杜绝"执行乱",保障民事裁判的顺利执行.