高铁隧道内气动效应形成损坏痕迹特点分析

动车高速通过隧道时,运行车体推动的空气由于受到隧道壁的约束能形成能量很强的冲击气流,有时会造成一些设备设施损坏、脱落,进而危及高铁行车安全。这类事件发生后,铁路部门往往误以为是人为破坏,并以破坏案件进行上报。本文通过对特定动车行车事故的现场勘验、调查访问,分析了高铁隧道内气动效应对特殊位置设施造成损坏的过程及形成痕迹特点,准确认定了事件性质和事故发生原因,并对气动效应形成损坏痕迹和常见工具形成痕迹的区别进行了探讨。     

Do volatile voters vote less correctly? An analysis of correct voting among vote (intention) switchers in US presidential election campaigns

The literature on electoral volatility and the literature on electoral campaigns hold contradictory views on voters switching vote (intention) during the campaign. In this note, we shed new light on this contradiction, making two contributions. First, we investigate the extent to which stable and volatile voters choose the correct party. Second, we distinguish levels of correct voting and the impact of the act of switching on the correctness of the vote. Our analyses of vote-switching in American elections show that, while volatile voters are less likely to vote correctly, they are more likely to switch from an incorrect to the correct party than vice versa. Furthermore, we show that following the campaign more closely makes voters more likely to switch vote (intention) towards the correct party.     

Small arms and light weapons: the disjunction problem

ABSTRACT

Growing in range and urgency, humanitarian needs now pose increasingly acute questions for national security policy formulation. Whether over forced migration, food scarcity or nefarious electronic penetration, state security preferences face uneasy accommodations with individual needs be it for child survival, basic sustenance or rights to privacy. This paper deliberates a further field of increasingly apparent value contest: that involving the transfer, diversion and lethal use of small arms and light weapons (SALW). After outlining the scale of this phenomenon, existing regulatory mechanisms over SALW transfers are assessed. It is argued that these controls are inadequate, a deficiency that is embedded within a range of inter-linked disjunctions. They are outlined in a model that is evaluated against empirical findings. Where SALW control inadequacy is causally connected to the disjunctive model, it is argued, current levels of SALW-induced casualties are unlikely to abate. The paper concludes by considering feasible options for enhanced management of global SALW proliferation.     

肌肉电导率和pH两指标联用推断死亡时间

目的探讨肌肉浸渍液电导率(electrical conductivity,EC)、pH两指标联用在PMI推断上的意义。方法 SD大鼠处死后,保存在25℃环境中,于不同PMI提取大鼠后肢肌肉制备匀浆液,测定浸渍液EC和pH。分析EC、pH两指标联合使用推断PMI的意义。结果 EC、pH两指标随PMI均呈现阶段性变化:1d内,pH明显下降,EC无明显变化;2~3d,EC、pH均快速增大;4~10d,EC继续增大,而pH变化不明显。EC、pH联合使用,有助于划分PMI时段,以及特定时段内指标的优化:1d内,选择pH最佳,2~3d,EC、pH联用最佳,4~10d,选择EC最佳。结论 EC、pH联用有助于提高PMI推断的准确性。     

中国与越南关系2012～2013年回顾与展望

本文主要是对2012年中越关系进行回顾，对2013年面临的问题作一些分析预测，并就发展中越关系提出一些建议。     

Conflict reduction by mutual disengagement

This study attempts to discover what variables, if any, will induce opponents to cooperate. The author isolated 12 independent variables and grouped the first five together in his refined model as variable 6. The remaining variables are: worthlessness, supervision, conspicuousness, previous neutralization, absence of internal segmentation, military potential, and tradition as a neutral. Analysis was limited to bivariate relationships between the independent and dependent variables (i.e., possible outcomes). Cases tested included examples from the outbreak of World War I to the present. The author discovered that disengagement would most likely succeed in a geographically and ideologically distinct Country, one previously neutralized, that had little military value, a politically organized population, and some military capacity. The most unpromising candidate would lack clearcut ethnic borders, internal homogeneity, and political unity. Disengagement, while no panacea, offers the advantage of many opening moves in a conflict reduction situation.     

公共服务供给机制转型中的公益性岗位研究

我国自2002年起开始施行公益性岗位的政策,这一政策对拓宽就业渠道、缓解失业压力起到了一定的作用。但目前依靠政府进一步开发和购买公益性岗位的难度很大。本文对国内外公共服务供给机制转型进行了比较分析,在此基础上提出以下建议:我国应进一步完善公共服务的供给机制,以社区为平台,通过推动购买服务的方式,调动社会组织服务社区和吸收就业的功能,以推动公益性岗位的增加。     

“两个普遍”要求乡镇（街道）工会建设新突破

当前,乡镇(街道)工会已成为工会组织体系中承上启下的重要环节,加强乡镇(街道)工会建设,落实"组织起来、切实维权"工作方针,亟待解决"有人干事"和"有钱办事"等问题,按照工会规范化建设要求,明确乡镇(街道)总工会法律地位,增强基层工会活力,确保依法推动企业普遍建立工会组织,依法推动企业普遍开展工资集体协商,即"两个普遍"工作目标的实现。     

愿景与现实的矛盾触碰--美国心理战略委员会东南亚心理战略的筹划、实施与结果

为了遏制共产主义在东南亚的渗透，在美国国家安全委员会的指示下，心理战略委员会特别成立了一个东南亚计划小组来负责制定编号为PSB D-23号的东南亚心理战略计划。但是，在PSB D-23号文件筹划过程中，国务院、中央情报局等部门对如何扩大在东南亚的心理战略计划有不同的看法，使得该文件的制定过程颇多磨难。虽然经过妥协，该计划最终得到国家安全委员会通过，但其实施效果却不应过分夸大。     

关于转型期企业共青团建设的几点思考

企业团组织引导青年发展,应基于青年特点和企业的实际展开。企业团组织要发挥政治上引领青年、帮助青年成才、对青年的考核等方面的作用。企业团建工作要从健全组织机构、介入企业文化、推进组织创新、规范组织生活、开展青年养成教育等方面入手。