民警执法观念变革及其方法论的思考

推进执法观念变革确有必要;在我国的现实法治环境中,“硬着陆”是无法回避的必然选择;但同时又必须对若干负效应加以必要的警惕。通过加强制度法规体系建设,培育整个社会的民主法制氛围,解决基层公安机关的现实困难,执法观念革命的目标则能实现。     

试析汉语新词韩译问题及对策

中国近年来新词层出不穷,大量新词被翻译到韩国,本文通过网络资料分析了这些汉语新词在韩译方面存在的问题,并以相关理论为基础,探讨了汉语新词韩译对策,以期对今后翻译有所裨益,同时唤起国内外学者对新词翻译层面的关注。     

论国有企业创建和谐劳动关系的方法与途径

开展创建劳动关系和谐企业活动,对于推动企业建立规范有序、公正合理、互利共赢、和谐稳定的社会主义新型劳动关系,有着十分重要现实意义.本文以中国石化镇海炼化分公司为例,从企业人力资源管理的角度,探讨国有企业如何创建和谐劳动关系,促进企业健康、稳定、快速发展的方法与途径.     

DELINQUENT PEERS IN CONTEXT: A LONGITUDINAL NETWORK ANALYSIS OF SELECTION AND INFLUENCE EFFECTS*

In this article, longitudinal social network data are analyzed to get a better understanding of the interplay between delinquent peers and delinquent behavior. These data contain detailed information about the social networks of secondary school students from the same grade, their delinquent behavior, and many relevant correlates of network formation and delinquency. To distinguish selection and influence processes, a method (Simulation Investigation for Empirical Network Analyses, SIENA) is used in which network formation and changes in delinquency are simulated simultaneously within the context of other network processes and correlates of delinquency. The data and the method used make it possible to investigate an unusually wide array of effects on peer selection and delinquent behavior. The results indicate that similarity in delinquency has no significant effect on the selection of school friends when other network dynamics are taken into account. However, the average delinquency level of someone's friends in the school network does have a significant, although relatively small, effect on delinquent behavior of the respondents, beyond significant effects of changes in the level of self‐control and morality. Another peer‐related change, leaving or joining informal street‐oriented youth groups, also appears to have a substantial effect on changes in delinquency.     

基于水印技术的司法数码影像防伪信息系统

数码影像作为证据使用存在一定的争议,针对此提出并建立了基于水印技术的司法数码影像防伪信息系统,该系统由加密防伪子系统、信息管理子系统和加密信息验证子系统组成,为确保司法数码影像的证据效力提供了一种技术方案。     

试论毒品走私犯罪案件侦查

毒品走私是“全球性”的难题,与青少年犯罪、恐怖袭击并称为三大公害。文章阐述了当前我国毒品走私面临的国内外形势,分析了当前毒品走私犯罪活动的手段和特点,有针对性地提出了打击毒品走私犯罪活动的侦查方法。     

传统录音机和数码录音笔在信道中的差异

语音是重要的法庭证据。随着科学技术的进步,各种各样的语音采集设备出现在人们的日常生活中。从传统的录音机到数字录音笔、手机、MP3,语音采集经历了由模拟信号到数字信号的转换过程。不同的采集设备和方法会造成语音的信道差异。传递语音信号的通道,如：传统录音机和数码录音笔由于各自的频率响应性能不同,对信号施加的影响也不同。传统录音机传递的是连续变化的模拟信号,数码录音笔传递的则是以有限个＂1＂和＂0＂的代码组合成为信息的数字信号,两者是现在普遍应用的两种信号模式。研究表明：信号通道对于语音识别,特别是自动语音识别的影响是明显的,但是对于图谱视觉检验的影响、影响的程度如何还尚待进一步的深入研究。     

Speech Watermarking: An Approach for the Forensic Analysis of Digital Telephonic Recordings*

Abstract: In this article, the authors discuss the problem of forensic authentication of digital audio recordings. Although forensic audio has been addressed in several articles, the existing approaches are focused on analog magnetic recordings, which are less prevalent because of the large amount of digital recorders available on the market (optical, solid state, hard disks, etc.). An approach based on digital signal processing that consists of spread spectrum techniques for speech watermarking is presented. This approach presents the advantage that the authentication is based on the signal itself rather than the recording format. Thus, it is valid for usual recording devices in police‐controlled telephone intercepts. In addition, our proposal allows for the introduction of relevant information such as the recording date and time and all the relevant data (this is not always possible with classical systems). Our experimental results reveal that the speech watermarking procedure does not interfere in a significant way with the posterior forensic speaker identification.     

识别和应对谎言措施研究

讯问对象说谎时总是会出现心理上的障碍,并通过他的口头语言和身体语言信号表现出来。讯问人员要能够识别这些信号,并运用一定的讯问技巧来揭露和应对讯问对象的谎言。识别和应对谎言是讯问人员的必备技能,要通过讯问实践的不断地培养和训练才能具备。