Long-term working memory in voice identification

Abstract

The present study investigated the role of long-term working memory in voice identification. For this purpose, a mock theft design was used and three groups: voice identification experts, totally blind people and a control group of sighted listeners without any special training or experience in voice identification, were compared for their voice identification efficiency.

Results revealed that the professional voice identification experts were more accurate than the other groups. Blind listeners were as effective as the sighted in voice identification. The results confirmed predictions which were based on the long-term working memory model. Implications of these results for the practice of voice identification are discussed.     

植物DNA条形码技术用于交通命案的调查

目的以rDNA-ITS序列片段为植物DNA条形码,对涉及一例交通命案的植物检材进行种属鉴定,判断三轮车左侧车体上提取的树皮样物质与农用车所运的树木是否为同一树种。方法采用改良CTAB法提取植物DNA,先将DNA纯化,再进行rDNA-ITS的PCR扩增,然后对PCR产物切胶、回收,克隆、测序,对测序结果进行BLAST分析,并构建系统发育树。结果三轮车上粘附的树皮来源于柑橘（Citrus sunki）,农用车所运的树木为界山三角槭（Acer buergerianum）,两者非同一种属。结论用rDNA-ITS序列片段用作植物DNA条形码对植物种属进行鉴定,可获得可靠的鉴定意见。     

辨证认识话者自动识别系统

为了警示近年来我国司法话者识别领域中出现的一些崇外、盲目追求快速与省事的苗头,结合话者自动识别系统的研究、应用状况,从语音的共性与个性、话者识别结果的相对性与绝对性出发,通过分析比对话者自动识别与语音识别所用的特征参数及实现过程,辨证分析了制约话者自动识别系统准确率的根本原因。指出了话者自动识别系统尚无法达到人们对其的期望,以及适合于司法诉讼领域的话者自动识别系统的发展方向。     

Chronic Offenders or Socially Disadvantaged Youth? Institutionalized Males as Missing Cases in School‐based Delinquency Research

Previous criminological studies comparing institutional youth populations with community samples have for the most part focused on youths institutionalized primarily as a result of involvements in delinquency. The present study compares levels of social disadvantage and criminal involvement within a nationally representative sample of Swedish schoolboys with those of a national population of institutionalized males that includes both serious young offenders and youths institutionalized for other reasons. Whilst at the aggregate level, mean levels of offending are higher within the institutional sample, the institutional population includes youths from across the entire range of levels of offending. Levels of social disadvantage are substantially elevated among the institutionalized males by comparison with the school sample. The study notes that institutionalized samples, where these include both young offenders and youths institutionalized for other reasons, may provide a fruitful ground for life‐course research into the way involvements in crime interact with other indicators of social disadvantage to affect the likelihood of continued marginalization into adulthood.     

侦查辨认失真：错案形成的心理学因素分析

侦查辨认是常用的侦查措施之一,侦查辨认的可信度和有效度可以直接影响办案的结果,错误的侦查辨认结论可以导致错案的发生。本文通过重点探讨辨认人对案发生过程中客观刺激物各元素的原感知以及对辨认对象各元素的感知比较的误差,分析导致侦查辨认失真的心理学因素,最后提出防止侦查辨认失真的有效策略。     

重罪案件刑事和解与刑法基本原则的价值冲突及融合

刑事和解概念虽从国外产生,但它和中国传统文化背景以及和谐社会理念吻合,它融合了人文关怀和道德情感因素,符合以人为本、和谐有序的现代刑事司法理念和现实需要,重罪案件刑事和解虽然与刑法基本原则存在冲突,但更存在价值取向上的契合。重罪案件在司法实践中和解不仅应当而且可能。     

Screening and identification of tissue-specific methylation for body fluid identification

Identification of body fluid stains can bring important information to crime case. Recent research in epigenome indicates that tissue-specific differentially methylated regions (tDMRs) show different DNA methylation profiles according to the type of cell or tissue, which makes it possible to identify body fluid based on analysis of DNA. This study screened and identified tDMRs from genome for forensic purpose. DNA samples from blood, saliva, semen, and vaginal fluid were analyzed by methylation sensitive represent difference analysis and Sequenom Massarray^® quantitative analysis of methylation. Six blood-specific tDMRs were obtained. Two tDMRs display blood-specific hypomethylation, and four tDMRs show blood-specific hypermethylation. These tDMRs may discriminate blood stain from other body fluids. The result indicated that tDMRs could become potential DNA markers for body fluid identification.