高速动车车窗玻璃破损成因研究

本文通过对24例高速动车组车窗玻璃破损现场勘查资料的分析，归纳了车窗玻璃在非人为因素和人为因素两种不同情况下玻璃破损的特点，探讨了动车车窗玻璃破损的机理，提出了勘查此类现场的要点及防范措施。     

侦查学学科定位问题再探——兼论侦查主体改革之思路

随着《学位授予和人才培养学科目录》的出台,沉寂多时的侦查学学科定位(或日属性)问题再次引发热论.侦查学到底归属于谁?众说纷纭.但主要焦点还是集中在是属于法学还是属于公安学上.将侦查学定位于“本质上属于公安学,但仍具有某些法学的特性”,似乎能够更好地解决争议、息纷止争,也更能体现侦查学学科独有的特性.正因如此,它能够为侦查主体的改革等一系列问题提供思路,使其朝着科学化和法治化方向迈进.     

Voting Advice Applications and the Estimation of Party Positions – A Reliable Tool?

Data contained in Voting Advice Applications (VAA s) is not only a prerequisite for the vote recommendations they provide but can also be used for estimating party positions in low‐dimensional spaces. Given that VAA s can be designed differently in terms of their number of items and their measurement level, how much can one trust the party positions obtained from this source? We tackle this question by exploiting relevant variation in a real‐world setting: three VAA s offered at the 2017 Lower Saxony election. Despite substantial design differences, the policy spaces extracted through an inductive scaling approach are highly convergent. Simulated random item removal from the pooled dataset of all three VAA s furthermore suggests that about 40 items yield satisfactory reliability of the party positions. Finally, we find that a priori assigning VAA ‐items to ideological dimensions is potentially problematic as the interpretation of resulting party spaces may differ from the ones derived inductively.     

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。     

美国诱惑侦查制度及对我国的启示

美国社会执法实践中广泛存在诱惑侦查的使用，关于诱惑侦查的法律和制度规制经过长期演变和经验积累，形成了较为完整的诱惑侦查制度。本文通过对美国诱惑侦查制度的法律规定和具体实践的探究，以期为完善公安机关执法工作提供一些参考。我们应借鉴美国关于诱惑侦查方式运用的有益经验，加快有关诱惑侦查领域的立法进程，明确具体的法律规定。公安机关在执法实践中应正确认识诱惑侦查的合理性，慎用诱惑侦查手段，严格遵循程序执法，规范自身执法行为，积极改进执法方式。     

浅析拐卖人口案件侦查之买方市场的防控

拐卖人口现象屡禁不止,根本原因之一是买方市场的存在及发展.本研究基于对拐卖人口买方市场存在发展的背景条件以及当前形势和防控难点进行分析研究,指出买方市场组成结构的复杂性与单方面打击不协调等问题.针对当前背景下采取系统作战方式应对拐卖人口新特点的重要性,通过咨询专家、文献研究以及与主要案发地区一线民警深入沟通,给买方市场防控措施提出相关建议,以期望对拐卖人口案件侦查有一定借鉴意义.     

Estimating Individual Contributions to Complex DNA SNP Mixtures.,

High‐throughput sequencing (HTS) of large panels of single nucleotide polymorphisms (SNPs) provides an alternative or complimentary approach to short tandem repeats (STRs) panels for the analysis of complex DNA mixture forensic samples. For STRs, methods to estimate individual contribution concentrations compare capillary electrophoresis peak heights, peak areas, or HTS allele read counts within a mixture. This article introduces three approaches (mean, median, and slope methods) for estimating individual DNA contributions to forensic mixtures for HTS/massively parallel sequencing (MPS) SNP panels. For SNPs, the major:minor allele ratios or counts, unique to each contributor, were compared to estimate contributor proportion within the mixture using the mean, median, and slope intercept for these alleles. The estimates for these three methods were typically within 5% of planned experimental contributions for defined mixtures.     

论我国侦讯取证的现状与制度完善

侦讯取证与人权保障是案侦活动的两个方面，但它们不是均衡发展的。维护人权观念的崇高，不能也不应掩盖打击犯罪在先的事实真相。侦讯活动与限制人身自由是同步的。考察我国的未决羁押与律师会见，如实供述与不自证其罪，相对的默示沉默权，辩护取证的显形化与规则化，律师在场权与全程同步录音录像，口供自愿性的证明能力，司法甄别、排除和认定口供的复杂性等问题。回答如何处理证据的法律真实和客观真实、形式真实和实质合理，取证打击犯罪与保护人权的关系。它们在侦讯取证制度的完善中，需有相应的配套举措。     

Lecture Versus Simulation: Testing the Long-Term Effects

Abstract

Active learning techniques are being use with increasing frequency in the classroom and more time is being dedicated to designing and implementing them. However, the literature still suffers from a lack of rigorous empirical methods to test the effects of simulations. Most of the claimed benefits of utilizing simulations, and other active learning techniques, are improved soft skills and higher order thinking like empathy, confidence, public-speaking abilities, and interpersonal skills—all of which don’t lend themselves well to scientific measurement. This gap in the literature is especially troubling considering that time spent using simulations is time not spent using other methods. This article seeks to test the differing impacts of simulations versus traditional lectures over the long-term using a simple 30-minute simulation and rigorous experimental methods. The most important results show that students learn more initially from a lecture, but that students who were exposed to the simulation were better able to retain that information over the long-term.     

Applying behavioural science to the annual electoral canvass in England: Evidence from a large-scale randomised controlled trial

Local authorities in Great Britain are required to ensure that their electoral registers are as accurate and complete as possible. To this end, Household Enquiry Forms (HEFs) are mailed to all properties annually to collect updated details from residents, and any eligible unregistered residents will subsequently be invited to register to vote. Unfortunately, HEF nonresponse is pervasive and costly. Using insights from behavioural science, we modified letters and envelopes posted to households as part of the annual canvass, and evaluated their effects using a randomised controlled trial across two local authorities in England (N=226,528 properties). We find that modified materials – particularly redesigned envelopes – significantly increase initial response rates and savings. However, we find no effects on voter registration. While certain behavioural interventions can improve the efficiency of the annual canvass, other approaches or interventions may be needed to increase voter registration rates and update voter information.