Comparative Analysis of the Chemical Profiles of 3,4-Methylenedioxymethamphetamine Based on Comprehensive Two-Dimensional Gas Chromatography-Time-of-Flight Mass Spectrometry (GC × GC-TOFMS)*

Abstract: The chemical profiling of illicit drugs is an important analytical tool to support the work of investigating and law enforcement authorities. In our work, comprehensive two‐dimensional gas chromatography–time‐of‐flight mass spectrometry (GC × GC‐TOFMS) combined with nontargeted, pixel‐based data analysis was adapted for the chemical profiling of 3,4‐methylenedioxymethamphetamine (MDMA). The validity and benefit of this approach was evaluated by analyzing a well‐investigated set of MDMA samples. Samples were prepared according to a harmonized extraction protocol to ensure the comparability of the chemical signatures. The nontargeted approach comprises preprocessing followed by analysis of variances as a fast filter algorithm for selection of a variable subset followed by partial least squares discriminant analysis for reduction to promising marker compounds for discrimination of the samples according to their chemical profile. Forty‐seven potential marker compounds were determined, covering most of the target impurities known from the harmonized one‐dimensional profiling as well as other compounds not previously elucidated.     

越级上访产生的原因及其治理

《信访条例》第4条明确规定,信访工作应当坚持分级负责等原则。分级负责原则说明,上访必须按程序进行,遵循“逐级上访”的原则,而不能“越级上访”,越级上访不利于解决问题。之所以会产生越级上访的现象,原因很复杂,但主要原因在于一些地方政府对访民不重视、信访机制运行不畅等。因此,治理越级上访,需要推进信访体制改革,破解越级上访的症结;坚决贯彻落实信访责任追究制度;树立法治权威,建设法治社会;提升信访等政府部门治理与善治的能力与水平。     

政府在群体性事件各阶段中的应对之策

群体性事件从产生到发展直至最后爆发一般都要经过萌芽阶段、显露阶段、发展阶段和激化阶段四个阶段。因此,政府作为主导社会正常运行的一方,也要做到因势而为,采取预防和处置两种应对之策。在萌芽阶段,政府要高度重视改善民生在化解社会矛盾中的基础作用,并采取切实有效的措施建立民众利益表达机制。在显露阶段,政府要建立社会矛盾化解机制。在发展阶段,政府要努力畅通政府信访渠道,妥善处理具体案件和依法及时做好信息公开。在激化阶段,要坚持尽快平息事件原则,建立群体性事件的预警与协调机制,恰当谨慎使用警力,并注意引导社会舆论。     

Between conflict management and role conflict: the EU in the Libyan crisis

This paper assesses the role of the European Union in the Libyan crisis (2011) and critically considers the implications for its evolution as an international security actor. Employing role theory, the paper reviews the historical development of the Union's security actorness and sheds specific light on the balance between self-conception and external expectations in the case of the Libyan crisis. Its central argument is that, despite external expectations and European narratives of a ‘comprehensive power role’, the Libyan crisis showed that the Union still acts in line with its traditional role as a civilian power. The inability to go beyond civilian power stemmed from internal dissonance on a potential hard power role and a corresponding lack of material capabilities. The growing gap between expectations about comprehensive actorness on the one hand and performance on the other is likely to damage the Union's future credibility as an international security actor.     

Forging Ahead

正The statistics on national economic development in 2013 released by the National Bureau of Statistics on January 20 should strengthen people’s confidence in the continuous improvement of the Chinese economy in 2014.     

Reflections on the New Administration,One Year on

正The new Chinese leadership completes a full year in off ice in March.No two words sum up its signature policies better than"deepening reforms"–as reiterated by top leaders in multiple circumstances over the past year.Last November,the Third Plenary Session of the 18th CPC Central Committee decided to comprehensively deepen reforms.The objective is to achieve decisive results by 2020 through reforms     

New Measures for China's Westward March

正In November 2013,the Third Plenary Session of the 18th CPC Central Committee approved the Decision on Major Issues Concerning Comprehensively Deepening Reforms.The decision stated that efforts should be made to accelerate infrastructural connections among neighboring countries and regions and to promote construction of the Silk Road economic belt and Maritime Silk Road,forming an all-round opening-up pattern.     

BTG-Jianguo Hotels & Resorts

正A ceremony marking the cooperation between the BTG-Jianguo HotelsResorts Management Company and Italy’s ATAhotels was recently held at the Beijing Jianguo Hotel.Operating 21 high-end hotels,resorts and aparthotels,ATAhotels is the largest group of its kind in Italy.And BTG-Jianguo is one of the leading hotel management companies in China.The i rst step in the companies’strategic cooperation was to select eight member hotels from each group to share logos and l ags,and     

庭审阶段补充侦查制度合理性省思——以审判中心主义为背景

庭审阶段的补充侦查制度是职权主义诉讼结构和"侦查中心主义"的产物,其理念是追求"实体真实"。该制度不符合当前以审判为中心的刑事诉讼制度改革的精神,有违控辩平衡的诉讼原则,也不利于保障被告人的人权,导致司法资源浪费和诉讼效率降低,且有侦查权僭越审判权之嫌。针对上述弊端,结合检察机关正在实行的以"案-件比"为中心的考核机制,宜尽快废除庭审阶段的补充侦查制度。作为补偿,应当赋予控辩双方平等的证据申请权,改由人民法院进行庭外调查,庭外调查的重点应是有利于被告人的证据。对于庭审阶段翻证的证人,不宜由侦查(调查)机关单方面询问核实,而应当通知其出庭作证。     

高职财经专业实训教学立体化模式之构建

高职财经专业目前已经成为高职院校中招生规模最大的专业,为了更好地满足社会需求,财经专业课程改革已经提上日程。由于财经类专业工作过程没有十分清晰的操作步骤和固定的运营模式,比较难以标准化和模式化,所以财经专业改革的重点和难点问题之一即是实训教学改革,围绕高职财经专业人才培养目标的要求,实训教学应着力于建立科学、创新的立体化模式。模式基本框架包括:实训教学目标体系、教学内容、教学方法手段体系、必要的实训条件、完善的考核方式体系。