QuEChERS方法在法医毒物分析领域的研究进展

在中毒或疑似中毒案件中,毒物鉴定对于提供侦查线索与犯罪证据、澄清案件性质、还原犯罪过程具有重要意义。基于液液萃取和分散固相萃取原理而建立起来的QuEChERS方法,由于其快速、简单、廉价、高效、可靠、安全等优势,正逐渐应用于法医毒物分析的样品前处理过程中。本文综述了QuEChERS方法的基本原理及其在提取和净化等过程中的优化改进,重点详述近年来QuEChERS方法在法医毒物分析领域的应用现状,并对未来发展方向进行展望。     

The United States,Japan, and the European Union: comparing political economy approaches to China

Abstract

This paper examines US, Japanese, and European political economy approaches to China, and their effect on US–Japan and US–EU relationships. Great powers with a greater security concern in dealing with another major country care more about power while those with less of a concern are preoccupied with calculations for wealth. China's rise and its actions have posed a far greater security challenge to the United States and Japan and are driving the two countries closer together. The political economy game involving China reveals a dominant welfare motive among the advanced market economies. The ambition to transform China politically has diminished. China's integration into the global market makes a relative gains approach difficult to implement. Globalization simply limits the ability of a state to follow a politics-in-command approach in the absence of actual military conflict, which explains why the political economy approaches of the United States, Europe, and Japan are not that different in the scheme of things. China's own grand strategy to reach out to the world to outflank the US–Japan alliance has also contributed to a divergent European policy toward China although there are severe limitations to Beijing's ability to drive a wedge between the United States and Europe.     

高职会计专业《经济法》教学模式挑战与构建

高职会计专业《经济法》课程的教学模式直接影响会计专业应用型人才的培养质量。当前高职会计专业经济法教学存在一系列挑战:缺乏适合高职财会专业的特色教材;考证应试效应给实践教学增添巨大压力;教师缺乏实践经验等。因此,以教师"双体验"为切入点构建新型教学模式:以趣味性和操作性为起点,抓好导入关;以考证和实践相结合为重点,抓好质量关;以教师培养和使用为关键,抓好育人关。     

发展循环经济:背景与对策

本文分析了循环经济产生的背景和内涵,论述了我国循环经济概念与国外的差异及其原因,阐明了发展循环经济与建设节约型社会的关系,总结出制度创新、技术创新、伦理道德与社会文化是循环经济的三大支撑条件,从优先产业选择、优先地区选择以及区域层面、企业层面、农村层面上指出了发展循环经济的途径,最后提出了发展循环经济的十大政策措施。     

Postmortem chest computed tomography for the diagnosis of drowning:a feasibility study

It may be difficult to distinguish the cause of death in drowning cases without specific findings. The aim of this study was to explore the forensic value of thoracic postmortem computed tomography (PMCT) using routine images and three-dimensional (3D) image reconstructions. The imaging data of PMCT examinations of six drowning cadavers, aged 21–54 years, were analyzed. Twelve victims of sudden death from coronary artery disease (CAD) were chosen as a control group. After 3D bilateral lung images were reconstructed using image processing software, an interactive medical image control system was used to measure and analyze parameters including lung volume, lung volume ratio, mean CT value of the whole lung, and lung CT value distribution curves. Lung volume and lung volume ratio were used to assess the shape changes of the lung. Lung CT value distribution curves showed the corresponding number of pixels of the different CT values in the lung image. Lung volume was not significantly larger in drowning cases (mean 2 958 cm³) than in controls (mean 2 342 cm³). Lung volume ratio values in the drowning group (mean 0.3156) were greater than those in the control group (mean 0.2763); (P = 0.02). There was no significant difference between the drowning and control group in the mean CT value of the whole lung. There were differences between lung CT value distribution curves in drowning victims and controls, with drowning victims showing a single peak and CAD cases showing a bimodal distribution. Thoracic PMCT is helpful for the forensic medical diagnosis of drowning. Lung volume ratio and lung CT value distribution are potential indicators to distinguish between drowning and CAD.     

公共安全生产事故的产生与防范——政企合谋视角的解析

从政企合谋视角对公共安全生产事故的产生与防范进行解析,建立了一个中央政府一地方政府一企业的三层委托代理模型,考察了公共安全生产事故产生的机理,发现中央政府在对待政企合谋问题时,主要是在公共安全生产事故被披露时所造成的社会成本和对地方政府所付出的激励报酬之间进行权衡:存在一个临界值,当公共安全生产事故被披露时所造成的社会成本较高时,中央政府应对地方政府采取激励契约;当公共安全生产事故被披露所造成的社会成本较低时,则政府对地方政府采取固定报酬契约.进一步对模型相关参数进行比较静态分析,并据此对现实中的现象给予解释:(1)中央政府反合谋力度与社会发展阶段密切相关;(2)地方政府官员绩效考核体系不完善诱发政企合谋;(3)对企业惩罚的不可信加大了中央政府的防合谋成本;(4)公众监督降低了中央政府的防合谋成本.     

Public Perceptions of Income Inequality in Hong Kong: trends,causes and implications

This article examines the patterns and changes in public perceptions of domestic income inequality in Hong Kong in the past two decades and explains individual variations in these perceptions. It found that the perceived seriousness of income disparities had been persistently high, while the perceived unjustness of income disparities showed a fluctuating trend. Our findings lent partial support to the structural position thesis that the privileged groups are less likely than the underprivileged groups to consider existing income disparities to be serious and unjust. Nonetheless, the popular understanding of poverty is still biased towards ‘individual’ explanations, and this perhaps explains why the government is less willing to tackle the economic and political foundations of poverty in Hong Kong.     

马克斯·韦伯的法理型统治学说探析

在《经济与社会》一书中马克斯·韦伯阐述了理想类型的体系,其中有关统治的类型情况则集中地表。达了马克斯·韦伯关于统治类型的学说,魅力型统治、传统型统治、法理型统治是合法性统治的三种类型。探析马克斯·韦伯关于法理型统治及其基本条件的学说和观点,对推进社会主义法治国家的构建具有重要的意义。     

群体性事件临战处置的战术探讨

群体性事件之所以难以处置,不仅在于群体性事件发生的原因杂、涉及广、人数众、局面乱,还在于指导公安机关处置群体性事件的意见和规定或过于抽象,或过于笼统,缺少适应性和操作性,跟不上治安形势的发展。尽管在群体性事件的临战处置中,警察的职责任务、警力调动、处置措施都有相应的规定,但目前从警察临战战术的层面进一步研究群体性事件的处置程序和方法,使之更具有操作性和针对性,仍是公安理论研究的一项迫切任务。     

井冈幽兰——朱德元帅夫人伍若兰

兰花,多年生草本植物,是既可野生也可盆栽供观赏的名贵花种。中国兰花文化已有两千多年的历史,内涵丰富,寓意深厚,以致形成了一种风气：崇尚兰花的气韵清雅,飘逸不俗;兰花的品相和精神千百年来入诗、入画不断。写兰吟兰的佳品层出不穷：“孤高气节山中兰,披霜戴月偏相安”。