A novel method for cyanide quantification in human whole blood using ion chromatography with amperometric detection and its application to cyanide intoxication cases

Cyanide is a highly toxic agent that has been frequently used for suicide in South Korea. It is also used in various industrial fields, such as metal plating, in which many accidental cyanide intoxications have occurred. To overcome the disadvantages of conventional cyanide analysis methods, a simple and fast method for the analysis of cyanide in whole blood using ion chromatography (IC) with amperometric detection was developed in this study. Whole blood samples were deproteinized, diluted, and analyzed using an IC–amperometric detection system. The limits of detection and quantitation were 0.1 and 0.2 mg/L, respectively. The method showed good linearity in the range of 0.2 to 50 mg/L with R² > 0.99. The intra- and inter-assay precision and accuracy values were <10%. The established method was successfully applied to analyze whole blood samples from three cyanide intoxication cases.     

普通高校体育舞蹈课的调查与分析

作者在文中以体育舞蹈班的学生为研究对象，重点研究了大学生学习体育舞蹈的动机、思想状态及对师资和教学方面的要求。     

刑事技术在缉毒中的应用

在毒品案件的缉查中 ,我们一方面要注意通过侦查渠道获取直接证据 ,另一方面我们一定要重视运用刑事技术手段 ,收集同案件有关的各类物证、书证、视听资料、鉴定结论等其他间接证据 ,并使之相互印证 ,共同构成一个完整的证据体系 ,切实做到案件实事清楚 ,证据确凿充分 ,为毒品查缉工作发挥刑事技术的作用     

中毒死者体内毒鼠强的GC/MS-SIM分析

一 1 9岁男子赌气吞服一白色粉末 ,1 0min后口鼻流血、抽搐 ,迅速送医院 ,经催吐、透析等方法治疗 5天后死亡。根据中毒症状和经验怀疑为毒鼠强中毒。用GC/NPD检验肝中毒鼠强有干扰。改用GC/MS -SIM法分析 ,心血、肝和胃组织中全部检出毒鼠强 ,浓度分别为 0 5 1 μg .mL- 1、0 4 5 μg .g- 1和 0 33μg .g- 1,和文献结果在同一水平。GC/MS -SIM对复杂检材中低含量毒鼠强测定具有更高的选择性 ,也具有较高的灵敏度 ,同时进一步证实毒鼠强排泄较慢 ,经过较长时间后在体内分布比较均匀     

Searches

ABSTRACT

Racial profiling is an important issue in contemporary policing. Racial profiling research has primarily involved two things: (1) examining traffic stop data, and (2) using a benchmark or baseline in the discovery of racial profiling. A smaller literature has examined the searches to uncover racial profiling. The purpose of the present study is to examine traffic stop data-in particular searches-in understanding racial profiling. Using data more than 40,000 traffic stops from Louisville, Kentucky, the present study found that race is one of many factors that are used in the determination of a search. The policy implications of this finding are discussed.     

A Study of the Background Levels of Male DNA on Underpants Worn by Females

This study is the first to examine the background level of male DNA on underpants worn by females in the absence of sexual contact. Here, we examined 103 samples from the inside front of underpants from 85 female volunteers. Samples were examined for the presence of male DNA using NGM SElect and PowerPlex Y23 kits. Only five samples gave a “complete” Y-STR profile, even though 83.5% of our volunteers cohabited with a male. In all cases where a partner reference sample was available, the Y-STR profile matched the cohabiting partner. We have demonstrated that a Y-STR profile is not expected on the inside front of underpants worn by females after social contact alone. The results of this study are informative for evaluating the significance of a Y-STR profile on underpants in cases of alleged sexual assault.     

近代中国的反倾销问题及其当代启示

近代以来,面对洋货在中国的泛滥,有识之士提出了振兴民族经济、进行商战的应对之策,民间抵制洋货的群众性运动此起彼伏,振兴国货与实业救国逐渐成为国人共识,民国政府通过经济立法以抵制外货倾销,但未能取得实质性成效。近代中国反倾销的历史说明,国家的独立统一是解决反倾销问题的根本前提,提高国货产品的竞争力是解决反倾销问题的根本途径。     

浅论犯罪心理画像在我国刑侦实践中的应用

犯罪心理画像主要是运用精神分析、行为心理学的理论和原理对与犯罪有关的行为进行分析,以提供犯罪行为人最为可能的人格特征、心理特征、行为特征等信息,从而协助侦查机关确定侦查范围的一种技术和方法。近些年来,犯罪心理画像已越来越多的引起侦查学界的关注和兴趣。然而只有正确理解和把握犯罪心理画像的适用条件、研究方法、以及厘清刑事科学技术与其的关系,才能更好的将其应用于侦查实践之中。犯罪心理画像可适用于任何刑事案件,关键在于通过剖析、研究个案中犯罪行为人的心理,积累行为资料,为侦查实践提供理论支持和案例指导。     

FBI犯罪心理画像研究述评

FBI的犯罪心理画像研究早期以36名犯罪人为研究对象,利用访谈法和资料分析法提出了一系列有价值的观点,同时在实际应用上也有很大成就,但有很多学者针对其研究方法、犯罪现场分类的＂二分法＂、心理画像理论模型提出了不同的看法。FBI的犯罪心理画像既不是万能的神话,也不是一无是处的谬论,需要一分为二地看待。     

紧急状态下的公安行政决策

紧急状态下的公安行政决策不具备常规决策的基本条件。在这类决策中 ,决策者应着重考虑“解决问题的可能性”及“事态的急迫性”两个因素。由于决策者面临的决策要素的“初始”状态不同 ,可能选择的决策策略也不同。在公安紧急决策中 ,决策者要根据决策要素的变化随时更改自己的策略选择以求得理性地实现决策目标。