动车玻璃破碎痕迹分析

动车运行过程中发生车窗玻璃破碎的情况具有突然性,对铁路运输安全有一定影响,并极易受到公众高度关注。动车玻璃破碎有的是人为因素引起,有的是非人为因素引起,判明玻璃破碎的原因,确定案事件性质,是采取有效措施,消除安全隐患的前提。笔者结合海南环岛高铁2010年以来发生的89起动车玻璃破碎案事件现场勘查实践以及广深线48起动车玻璃破碎案事件资料,对玻璃自爆、飞砟、弹弓弹射钢珠、抛石击打造成玻璃破碎的形成机制和痕迹特征进行了分析总结;针对抛石击打与飞砟形成玻璃破碎痕迹的区分难点,对两者因击打角度和方式不同、击打物的体积和质量的不同而形成痕迹的差异进行了深入探讨。     

关于公安组织结构创新的理论思考

公安组织结构是公安工作中形成的权责关系的架构体系。我国公安组织属于直线一职能制结构类型,随着社会的发展,这种结构化缺陷形成的弊端日益凸显,解决这些弊端的有效途径就是开展公安组织结构的创新。公安组织结构创新应以权力配置、绩效管理和激励系统作为切入点,公安队伍的正规化建设是公安组织结构创新的具体应用。     

高职高专公安院校教育思想研究的逻辑起点探析

逻辑起点是一种理论或一门学科研究的出发点,正确的定位对于理论的发展和体系的构建起着至关重要的作用。"以就业为导向"的高职高专教育思想观念是现行高职高专教育思想研究的逻辑起点,其源自高职教育的逻辑起点"供求"。笔者在借鉴高职教育"供求"逻辑起点的基础上,提出以"需求"为公安教育的逻辑起点,其内涵为公安教育要"培养公安机关亟需的,以具有国家公务员身份为必要条件的,既有国际水准又具有中国特色的高素质的人民警察"。公安教育思想研究既要以其作为研究或分析的开始,并要以此为核心,演绎出整个公安教育理论体系的逻辑主线和结构,从而为促进我国公安教育的可持续发展提供科学的理论支持。     

海岛主权争端适用有效控制规则的国内法逻辑

晚近国际法院的实践催生了海岛主权争端中适用有效控制规则的日渐成熟和完善,然而,海岛主权争端的复杂性,导致了适用有效控制规则中所考量的各种因素或者证据的权重和分量的不同。在理解国际法的财产权逻辑日渐成熟和被接受的情境下,理解海岛主权争端适用有效控制规则的国内法逻辑,即从国际法体系中的"国内法"因素、国际法体系中作为"事实"的国内法以及国际法院的司法中证据规则三个角度来诠释适用有效控制规则的国内法逻辑进路,将为理性理解有效控制规则提供另一种绵长的动力。主要海洋国家的海岛立法表达模式表明,有效控制规制的适用不仅受到不同海岛立法的表达模式的影响和制约,而且理解适用有效控制规则的国内法逻辑的务实措施是强化国内立法,且必须明确国内法表达的类型、特点与机制。中国同周边国家的海岛主权争端为深入和系统地审视有效控制规则提供了实践经验和依据,更为海岛主权争端适用有效控制规则提供了理论修订机会。就中国而言,在理解海岛主权争端适用有效控制规则的国内法表达上,一方面要展开海岛立法的顶层设计,另一方面要有选择地强化特定海岛的专门立法。     

基于红外光谱无损区分可擦中性笔墨水色痕的研究

可擦中性笔墨水色痕形成文件的检验是目前法庭经常遇到的问题,建立一种简便、灵敏、快速、定性准确的区分可擦中性笔墨水色痕种类的方法是当前公安实战部门所需要的。研究中利用红外显微镜,采用单点模直接采集可擦中性笔墨水色痕的红外光谱。实验结果表明,根据样品红外吸收光表征的红外吸收峰的位置、数目、强度及形状可将不同品牌的可擦中性笔墨水色痕区分开来。     

DRAWING UP A NEW BLUEPRINT

正Local governments plan to tackle pollution and change growth modes for 2014 Choking smog lingered,covering an area of 1.43 million square km in central and east China,an area more than twice the size of France,for a whole week starting from February 20.Beijing and part of the neighboring Hebei Province suffered most.On February 25,readings of PM 2.5,fine particulate matter 2.5     

An innovative method for human height estimation combining video images and 3D laser scanning

Digitalization has increased the number of video surveillance systems that sometimes capture crime images. Traditional methods of human height estimation use projective geometry. However, sometimes they cannot be used because the video camera surveillance system is not available or has been moved and there are no reference lines on the frame. Scientific studies have developed a new method for human height estimation using 3D laser scanning. This model necessarily requires a series of approximations, which increase the final measurement error. To overcome this problem, in the present study, images of a subject are projected directly on the 3D model, estimating the height of the subject. This article describes the methodological approach adopted through the analysis of a real case study in a controlled environment executed by Carabinieri Forensic Investigation Department (Italy). The aim is to obtain a human anthropometric measure derived from frames extracted from the videos associated with the digital survey of the framed area obtained with 3D laser scanning and point cloud analysis. The result is the height estimation of five subjects filmed by a camera obtained through the combination of 2D images extracted by a DVR/surveillance systems with 3D laser scanning. Results show that most estimated measurements are less than the real measurement of the subject; it also depends on the posture of the subject while walking. Furthermore, results shows the differences between the real height and the estimated height with a statistical approach.     

The Effects of Media and their Logic on Legitimacy Sources within Local Governance Networks: A Three-Case Comparative Study

Although theoretical and empirical work on the democratic legitimacy of governance networks is growing, little attention has been paid to the impact of mediatisation on democracies. Media have their own logic of news-making led by the media’s rules, aims, production routines and constraints, which affect political decision-making processes. In this article, we specifically study how media and their logic affect three democratic legitimacy sources of political decision-making within governance networks: voice, due deliberation and accountability. We conducted a comparative case study of three local governance networks using a mixed method design, combining extensive qualitative case studies, interviews and a quantitative content analysis of media reports. In all three cases, media logic increased voice possibilities for citizen groups. Furthermore, it broadened the deliberation process, although this did not improve the quality of this process per se, because the media focus on drama and negativity. Finally, media logic often pushed political authorities into a reactive communication style as they had to fight against negative images in the media. Proactive communication about projects, such as public relation (PR) strategies and branding, is difficult in such a media landscape.     

Milton's army: The white house press corps

White House reporters follow a path constructed by presidential advisers that they hope will lead them to fulfill goals set by their news organizations. White House officials ration them facilities for work, access to newsworthy people, and reportable information in amounts that depend on the importance to the President of the type of media they work in, the status of their particular news organization, and the staff's respect for the influence and competence of a particular individual. In this context, several constraints that affect White House reporting are discussed here: those placed on reporters by their organizations; by the way their type of media covers the White House; by their relations with each other; and by their concepts of what they are required to do. The framework for this discussion and analysis is a classification by type of media and news organizations that assign journalists to the White House. Of the resulting six categories, the first three have the most structural and organizational influence and are given the most attention. The special status, unique history, and influence of photographers at the White House require that they be treated separately.     

扎实推进社会主义文化强国建设思想的价值逻辑——建构中国特色社会主义文化话语体系的理论特色

党的十八大报告把中国特色社会主义文化建设推向了一个新的高度。＂扎实推进社会主义文化强国建设＂思想凝结着中国共产党文化建设思想的智慧,体现了建构中国特色社会主义文化话语体系理论特色的价值逻辑。其蕴含的新观点、新精髓、新思路、新提法,丰富了建构社会主义文化话语体系的先进特色、民族特色、和谐特色、时代特色的重要理论内涵。新观点体现了建构中国特色社会主义文化话语体系先进特色的价值目标。新精髓形成了建构中国特色社会主义文化话语体系民族特色的理论核心。新思路体现了建构中国特色社会主义文化话语体系和谐特色的发展导向。新提法体现了建构中国特色社会主义文化话语体系时代特色的实践创新。