Bloodstains on Leather: Examination of False Negatives in Presumptive Test and Human Hemoglobin Test

Presumptive tests for blood are very simple and sensitive tests used in the search for evidence. They also provide initial information on the nature of stains. A second test can confirm their nature. However, these tests can present false–negative results for different reasons. Some of those reasons have been studied, while others, those caused by the substrate material that contains the stain, are less well known. This work studies the effect of one component of a leather substrate—quebracho extract—on presumptive and human hemoglobin blood tests. Assays were performed using samples of blood dilutions contaminated with quebracho extract and others formed on a substrate containing the contaminant. Results show an undoubted interference that causes false negatives and even visible to the naked eye stains and also indicate that some tests (phenolphthalein) are more affected than others. Examiners should be taken into account when working on this kind of substrates.     

Implicit judgments of rape cases: an experiment on the determinants and consequences of implicit evaluations in a rape case

Implicit evaluations reflect people’s gut response toward an attitude object and are based on associative processes. They are the starting ground for more reflective processes and subsequent explicit evaluations. The present research examined determinants and consequences of implicit evaluations in a rape case. Situational (i.e. specifics of the rape case) and personal factors (i.e. rape myth acceptance) were demonstrated to influence both explicit and implicit judgments of the rape case. Moreover, sex of participant influenced participants’ implicit evaluations but affected explicit judgments only indirectly via the implicit evaluation. People’s gut response was shown to affect their explicit judgment of the case, and this effect was particularly pronounced for people with a low need for cognition (i.e. people who do not like to engage in effortful processing). The discussion focuses on the role of implicit cognition and implicit biases in judicial decision-making.     

福建省技术进步对经济增长的影响机制分析

根据中国经济增长的实际情况,把技术进步分解为内在技术进步和外在技术进步两个方面。利用计量模型从短期和长期两个角度来分析内在技术进步、外在技术进步与经济增长三者之间的关系。基于福建省1987年至2009年的数据,对这三个变量进行协整关系分析、格兰杰因果关系分析和在VAR模型基础上的脉冲响应函数分析以及方差分解分析。实证分析结果显示：不论从长期看还是从短期看,福建省内在技术进步对经济增长的拉动作用比福建省外在技术进步要大。     

浅议试药导致损害的侵权责任

《药品临床试验质量管理规范》规定了我国药物临床试验的主要制度,但对试药导致损害的救济立法上不甚明确。建议通过侵权责任的方式对受试者的损害进行救济。试药人身损害的责任可适用过错推定责任原则,其构成要件应由损害后果、加害行为、因果关系、过错四部分组成。     

Z‐Transform Method for Pairwise Osteometric Pair‐matching,

A new pairwise osteometric pair‐matching approach based on the Z‐transform method is presented. In contrast to previous methods that perform a global t‐test on the summed skeletal element pair measurement distances, this approach performs t‐tests on each individual distance, facilitating the capture of measurement‐specific variation. This new approach is compared to published pairwise sorting methods using a standard reference dataset of postcranial remains maintained by the Defense POW/MIA Accounting Agency. Receiver operating characteristic curve analysis indicates significantly improved performance for the clavicle and radius over all previous methods (p < 0.01). The z‐transform method weighted by the effect size outperformed the t‐test (Byrd and Adams) and the mean t‐test (Lynch) for all elements (p < 0.01). The method performed better than the absolute value t‐test (Lynch) for five elements (p < 0.01) and performed at least as well for the remainder. To facilitate usability all methods are available at: https://github.com/spawaskar-cora/z-transform-method .     

The failure of the Russian global license proposal and the future of alternative remuneration systems

As rights holders, courts, and policy makers worldwide struggle with the question of copyright infringement and the potential liability of internet service providers (ISPs) worldwide, Russia developed – and subsequently abandoned – a proposal for the creation of a global license to be imposed on ISPs which would allow for rights holders to be compensated for copyright-infringing activities carried out through those ISPs.Russia is not the first jurisdiction to look at a global license as solution to the wide spread of copyright infringements online. By analysing the Russian proposal for a global license, this article addresses the sustainability of such a model on a wider scale by analysing the legal implications this may cause. In this context, this article will address the Russian proposal's legislative history before moving into a substantive discussion about the synergies between legal justifications and merits of a global license.     

论服务器标准的局限

在我国信息网络传播权的侵权判定中,服务器标准虽然基本是司法实践的"主流",但它却未必始终符合国际条约和我国著作权法的规定。从发展的角度看,服务器标准只是对应着早期互联网的一种侵权界定标准,已不能涵盖所有的技术可能性或作品提供行为。在当前互联网技术环境下,把作品等客体提供于开放的服务器只是构成向公众提供作品行为的充分条件,而非必要条件,更非充分必要条件。固守服务器标准可能导致信息网络传播权法律适用背离技术中立原则,偏离立法目标,产生法律适用困境。司法裁判者应抛弃服务器标准,采用符合法律规定和更为合理的侵权界定标准。     

Psychophysiological Responses of People with Psychopathic Tendencies to the Concealed Information Test

This study was designed to investigate differences in psychophysiological responses among individuals with psychopathic tendencies. A total 40 students were participated and were divided into two groups based on Levenson Self‐Report Psychopathy Scale (LSRP) scores: a high psychopathic tendency group selected from the top 5% of LSRP scores, and a low psychopathic tendency group selected from the bottom 5% of LSRP scores. All participants were instructed to perform a mock crime and complete the concealed information test (CIT). Results indicate that significant differences between crime‐relevant questions and irrelevant questions were observed for respiration line length and skin conductance response in both groups, but heart rate did not significantly differ between groups. There were no differences in psychophysiological responses between the groups. In conclusion, CIT was found to be an effective method for detecting crime‐relevant information in individuals with psychopathic tendencies.     

Preparation of Artificial Blood from the Extract of Legume Root Nodules,and the Creation of Artificial Latent Fingermarks in Blood Using Artificial Blood,

Distribution of homogeneous fingermarks in blood is essential for conducting proficiency tests in forensic science. Hence, the artificial blood was prepared using the root nodule extract of Glycine max plants. The reactivity of the artificial blood with widely used human blood detection reagents was tested. Artificial latent fingermarks in blood were printed using an inkjet cartridge case filled with artificial blood solution. The artificial latent fingermarks in blood were developed with amino acid‐sensitive reagents and could obtain development as prominent as the image of the master fingermark saved on the computer. Therefore, it has been confirmed that the extract of legume root nodules can be used as artificial blood, and the artificial blood can be used for the preparation of artificial latent fingermarks or footmarks in blood.     

实时荧光定量PCR检测硅藻UPA基因在溺死诊断中的研究

目的建立硅藻UPA条形码基因的实时荧光定量PCR检测方法,探讨其在溺死诊断中的应用价值。方法对Gene Bank中登录的硅藻UPA基因序列进行比对获得同源序列,据其设计硅藻门通用引物。对2种人体常见共生菌(大肠杆菌、双歧杆菌)、3种浮游细菌、15种浮游藻类、32具尸体(其中生前溺水死亡28例,死后抛尸1例,陆地死亡3例)的组织样本(肺、肝、肾)及尸体发现地水样提取DNA,采用设计的引物进行特异性、灵敏度、重复性试验,分析检材中硅藻检出情况,统计硅藻阳性率,以上述组织样本的微波消解-真空抽滤-自动扫描电镜法检测结果对建立的q PCR检测方法进行比较评估,比较该方法与PCR-毛细管电泳检测法的灵敏度。结果引物UPA99仅对硅藻标准株(针杆藻、舟形藻、直链藻、小环藻、菱形藻)DNA具有扩增,扩增产物熔解曲线平稳,峰尖且窄,熔解温度为(87±1)℃。以p MD18-T重组质粒为标准品,检测区间为1.56×10~2-1.56×10^-5ng/μL,建立实时q PCR方法的灵敏度为1.56×10^-5ng/μL,而PCR-CE方法的灵敏度为1.56×10-3ng/μL。批间及批内变异系数均低于2%,具有较高的重复性和稳定性。对于生前溺水尸体肺、肝、肾的检出率依次为89.3%,71.4%,64.3%。结论基于硅藻UPA基因设计通用引物,建立的q PCR硅藻检验法特异性高、灵敏度高、重复性好,应用于溺死诊断具有较好的应用前景。