Applying the Verifiability Approach in an international airport setting

In the current study, we tested the utility of applying the Verifiability Approach (VA) within an international airport setting. The VA works on the notion that truth tellers provide more verifiable details than liars and has shown to be successful within other empirical deception detection scenarios. Three hundred and ninety-nine airside participants (those originating from Europe, Asia and African) were asked questions regarding their travel plans. We asked participants to either lie (n?=?195) or tell the truth (n?=?204) about their planned activities. The critical question required participants to provide information that would convince the investigator that they were telling the truth. We then transcribed and coded their responses for verifiable details; that is, details that could potentially be checked by an investigator. Overall, truth tellers provided significantly more verifiable details than liars. Furthermore, when taking their geographical origin into account, there was no interaction effect between veracity and region. Additionally, truth tellers provided a higher verifiable/total detail ratio than liars, which again showed no interaction effect between veracity and region. These findings support the suitability of the VA as a cross-cultural veracity tool and implications for its use as an additional security aid are discussed.     

Extracting Concealed Information from Groups*

Abstract: Lie detection procedures are typically aimed at determining guilt or innocence of a single suspect. Serious security threats, however, often involve groups, such as terrorist networks or criminal organizations. In this report, we describe a variant of the skin conductance‐based Concealed Information Test (CIT) that allows for the extraction of critical information from such groups. Twelve participants were given information about an upcoming (mock) terrorist attack, with specific instructions not to reveal this information to anyone. Next, each subject was subjected to a CIT, with questions pertaining to the details of the attack. Results showed that for every question, the average skin conductance response to the correct answer option differed significantly (p < 0.05) from those to all other options. These results show that the information about the upcoming attack could be extracted from the group of terror suspects as a whole.     

HPLC-DAD双波长法同时测定脑络欣通胶囊中阿魏酸及天麻素含量

目的 建立双波长同时测定脑络欣通胶囊中天麻素和阿魏酸含量的方法,为脑络欣通的质量控制提供依据。 方法 采用高效液相色谱-二极管阵列检测器和Welch Materials C8色谱柱（250 mm×4.6 mm,5 μm）。流动相：乙腈-0.01%磷酸;梯度洗脱（乙腈：0～10 min,6%;10～30 min,6%→35%）;流速：1.0 mL/min;柱温：35 ℃;检测波长：320 nm（阿魏酸）和222 nm（天麻素）。结果 在30 min内,实现了阿魏酸与天麻素双波长同时测定,二者含量分别在0.20～2.39 μg（r＝0.999 9）和0.20～2.41 μg（r＝0.999 8）范围内与峰面积呈现良好的线性关系,平均加样回收率分别为99.5%和99.1%（n＝6）。 结论 双波长检测对复方中阿魏酸与天麻素定量更准确,二者同时测定能有效提高分析效率,该方法可用于脑络欣通胶囊的质量控制。     

高效液相色谱法-蒸发光散射检测器同时测定肝乐颗粒中黄芪甲苷和芍药苷的含量

目的 采用高效液相色谱-蒸发光散射检测器(high performance liquid chromatography-evaporative light scattering detector, HPLC-ELSD)建立肝乐颗粒中黄芪甲苷和芍药苷的含量测定方法。方法 以水和甲醇分别为流动相A和流动相B,在Hypersil ODS XB-C18柱(4.6 mm×250 mm,5 μm)上进行梯度洗脱。洗脱程序：0~5 min,A 60%;6~10 min,A 25%,11~18 min,A 10%;流速：1.2 mL/min;柱温：30 ℃。ELSD参数优化：增益值分别设为1、2、3;漂移管温度分别设为50、70、90、110 ℃;载气流量分别为1.2、1.6、2.0、2.4 L/min。结果 通过优化参数,在增益值为2,漂移管温度为90 ℃和载气流量为2.0 L/min时,对芍药苷和黄芪甲苷的含量检测结果最佳。芍药苷和黄芪甲苷的平均加样回收率分别为99.58%、100.37%,RSD分别为2.32%、1.21%。结论 该方法简便、准确、灵敏度高、重现性好,所优化的ELSD参数及建立的HPLC-ELSD法适合肝乐颗粒中芍药苷和黄芪甲苷含量的同时测定。     

国家级科技企业孵化器的时空特征及影响因素

该文运用点密度渲染、全局自相关分析和地理探测器方法对中国国家级科技企业孵化器的时空分布特征和孵化器效率的影响因素进行了分析。研究结果表明,第一,在所考察样本及其时空阶段内,中国国家级科技企业孵化器分布密度基本呈现由东部沿海往西部内陆递减的特征,同时呈现孵化器数量空间集聚态势;第二,各个影响因素对科技企业孵化器效率的影响力度不同,且在中国的东、中、西和全国四个层面各因素的影响力度也存在差异;第三,不同因素交互作用后呈现双线性加强态势。创新水平、政府政策、基础设施水平和外商直接投资水平对国家级科技企业孵化器的效率有重要影响。不同地区为提高科技企业孵化器的效率,应注意多种因素的协同和搭配。     

身体缺席的“演出”——网络聊天中的信任与谎言问题研究

网络聊天这种受到大学生普遍青睐的新兴交流渠道,在人际交流中发挥了辅助性的作用。本次调查通过将网络聊天与面对面、书信、电话、电子邮件和手机短信五种人际交流渠道相比较,发现大学生对其信任程度低于面对面、书信、电话、手机短信和电子邮件,处于信任层级的底端;相对于较多出现在面对面交流中的主动型谎言,网络聊天中的谎言更多的是被动型的;网络聊天特殊的交流群体和信息表现形式,是影响大学生对其信任程度的主要因素。     

三维街景地图在多道仪测试中的应用研究

多道仪测试中的证据探索类测试,在国外常借助地图予以实施,这被称为地图测试法。本文使用三维街景地图替代传统的平面图,取得了明显的成效。在一起重大杀人焚尸扬灰案测试中,为了寻找3年前被抛洒的死者骨灰,作者利用三维街景地图,既改进完善了传统地图测试法,又将街景地图测试的形式推广至情节测试。结果显示,较之图片测试法和视频测试法,三维街景地图测试对被测人更生动形象,刺激效果更好,测试结果令人满意。     

Anthropological Measurement of the Juvenile Clavicle Using Multi‐Detector Computed Tomography—Affirming Reliability

Currently, there is no standardized protocol for multi‐detector computed tomography (MDCT) measurement of juvenile remains. Using 33 juvenile clavicles, this paper investigates a protocol to allow MDCT measurements, comparable or supplemental with traditional osteometric measurements, to be acquired for application to previously published algorithms. The results illustrate that there is no significant difference between MDCT measurements and those taken by direct osteometric methods. By presenting such a protocol, this paper takes the first steps toward validation of the process of conversion from measurement of dry juvenile bone to MDCT compatibility and allows the forensic world to take a step forward in standardizing the way MDCT is used for forensic practice. This paper assesses the limitations and potential applications of this virtual approach and offers some suggestions for where further work might progress the conversion of these new approaches into legally admissible anthropological techniques of age estimation.     

伪装识别技术的研究进展

测谎仪作为传统的测谎手段,试图通过人体外周局部植物神经反应的变化进行测谎,有一定的局限性。测谎仪的可靠性在很大程度上还决定于与仪器无关的因素,因此受到了最多的关注和质疑。事件相关电位(ERPs)尽管具有很高的测谎特异性和时间分辨率,可监测大脑的即时认知过程和电活动,但其空间分辨率差。大脑功能核磁共振成像(fMRI)可直接观察大脑的功能变化,具有良好的空间分辨率,但这项技术时间分辨率差,只能记录说谎后大脑变化的最终结果,目前该技术仍然处于基础研究阶段。在涉及伪装精神病和伪装认知损害相关诈病的司法心理学实际运用中,心理测试技术得到了更多的应用和研究。