领导行为如何影响政务短视频绩效 ——基于抖音的调查研究

政务短视频日益成为政务新媒体的主要运营方式,但是少有研究深入其运营过程,对其运营绩效进行实证研究和理论解释。本文基于政务抖音号运营人员的深度访谈和问卷调查数据,实证分析了授权型领导行为对政务短视频运营绩效的影响。研究显示,工作支持和权力委任这两项授权型领导行为变量能够激发运营人员的工作积极性,进而提升政务短视频的运营绩效;目标和结果控制行为仅能增加账号更新频率,对政务短视频的传播和影响作用不明显。研究显示,不同方面的授权型领导行为对政务短视频运营绩效的不同维度产生了有差别的影响,党政部门领导干部需要采取相应政策措施支持和推动其高效运营,使政务短视频发挥更大的作用。     

论视频资料之独立证据地位——兼谈视听资料法定形式的细化

我国三大诉讼法中均明确了视听资料的独立证据地位。然而,随着电子技术的不断发展和创新,仅靠对视听资料作扩大解释无法很好地解决实践中证据的应用问题。因此,有必要在理论上和立法中重新界定视听资料的内涵和外延,明确视听资料的具体证据形式,并细化为视频资料和音频资料两大类。在此基础上,可以对视频资料作进一步划分,并与电子证据相区别。     

The Anatomy of a Pipe Bomb Explosion: Measuring the Mass and Velocity Distributions of Container Fragments

Improvised explosive devices such as pipe bombs are prevalent due to the availability of materials and ease of construction. However, little is known about how these devices actually explode, as few attempts to characterize fragmentation patterns have been attempted. In this study, seven devices composed of various pipe materials (PVC, black steel, and galvanized steel) and two energetic fillers (Pyrodex and Alliant Red Dot) were initiated and the explosions captured using high‐speed videography. The video footage was used to calculate fragment velocities, which were represented as particle velocity vector maps. In addition, the fragments were weighed. The results demonstrate a correlation between the type of energetic filler and both the size and velocity of the fragments. Larger fragments were produced by Pyrodex filler indicating a less complete fragmentation, compared with smaller fragments produced by double‐base smokeless powder. Additionally, higher fragment velocities were seen with Alliant Red Dot filler.     

关于治安防控体系中视频监控系统的研究

视频监控系统作为治安防控体系的重要组成部分,可以全方位、多角度地预防和处理各类治安突发情况,是公安机关维护社会治安的重要手段。应从视频监控系统的重要性、系统建设以及发展趋势等方面入手,探讨治安防控体系下的动态视频监控系统的相关问题,以期更好地为公安机关预防和打击各种违法犯罪行为提供重要保障。     

视频监控信息在目标轨迹分析中的应用研究

从理性选择角度分析作案人,可以推测其在实施犯罪后大多会逃离犯罪现场,销毁犯罪证据,隐匿身份,这些活动过程必然会在一定的时间、空间得以体现。而以案件现场为基准点,根据视频监控系统中记录犯罪嫌疑人案发前的活动情况、案发后活动行踪,以还原行为轨迹,从而分析其下一步将会出现的时间点和活动区域。狭义的目标轨迹概念是指造型体在时空运动中,通过信息交换,遗留在承受体上记录其社会交互活动状况的总和。它以社会网络分析、信息交换、数据挖掘等原理为支撑。可以以人员轨迹、车辆轨迹、涉案的特定物等为标识,通过运用时序、空间、信息联查等方法,分析视频监控信息中的目标轨迹。     

视频侦查课程设置研究

在信息化时代背景下,公安院校设置视频侦查课程是必要的。其课程开发要符合教育规律,必须组建课程开发团队实施课程的开发工作,并按照非技术—非科学法的课程开发原理科学安排教学内容。视频侦查课程的设置应致力于解决公安机关视频侦查专业人才不足、技术方法落后、理论研究缺失的问题。教学内容安排是视频侦查课程设置的核心问题。建构一个有机的视频侦查课程体系,是培养优秀的应用型视频侦查人才的关键所在。     

数码照相机与视频荧光鉴别仪的物证检验应用比较

索尼SONY WVC-CD300数码照相机与SYJ-5型视频荧光鉴别仪应用在文件检验时,视频荧光鉴别仪部分功能可用 该种数码照相机代替,各具特色。     

A Naval Revolution and Institutional Change: The Case of the United Provinces

This study starting from the debate of the influence of the so-called military revolution on the emergence of modern states, analyses the neglected aspect of the influence of seapower on socioeconomic change, using a formal model. It is maintained that the choice of seapower by a state leads to a different regime than the choice of land military power, because sustainable seapower necessitates a wide alliance of interests, which brings with it more democratic regimes, develops new more efficient and complex forms of organizations, requires the acquisition and diffusion of new knowledge and expertise that brings with it institutional change and economic growth. The present study concludes with a short presentation of the United Provinces (the Dutch Republic) turn to the sea.JEL Classification: N0, N4, C7, O0     

数字化时代盗窃对象的演变及刑法规制

网络游戏中的虚拟财产具有现实的经济价值和可支配的动产属性,可以作为盗窃罪的犯罪对象;网络游戏中盗窃虚拟财产行为虽具有智力性、虚拟性的特点,但与现实生活中盗窃一般财产行为的本质相同;盗窃虚拟财产具有社会危害性,可以盗窃行为定性,应通过对网络虚拟财产的价值评估予以现实法律规制。     

完善网络游戏立法的若干思考

网络游戏给不少青少年带来了种种危害,游戏中如账号被盗,密码遭窃,游戏中的道具、装备失踪等问题不断出现。网络游戏的发展不仅是一个技术问题,更是一个法律问题,因此,应尽快完善游戏立法,以保证网络游戏的健康发展。