基于点云数据的瘢痕长度测量方案

瘢痕鉴定是法医工作中重要的一项任务,对瘢痕的纹理、位置和长度等信息都有着细致的规定和要求。通过三维扫描仪可以便捷地获取点云数据,还原瘢痕区域的具体结构,为瘢痕鉴定提供新的工具。本文基于三维点云数据,提取瘢痕的趋势线,进行瘢痕长度测量。该方案首先对三维瘢痕数据进行投影,在二维平面上提取瘢痕的端点和关键点。然后在三维曲面上通过近邻搜索和向量内积的方法,依次连接所有关键点得到沿瘢痕表面的趋势线,计算瘢痕的长度。本文实验中使用的三维瘢痕点云来自某法医司法鉴定中心的工作内容,通过三维扫描仪提取。在实验数据上的应用结果显示,提取的趋势线在瘢痕表面贴合程度较好,可以跟随曲面进行弯折,可靠性很高。以点为核心的计算方法,在后续测量功能改进中也有较大的空间。     

The Body a ‘Double-Edged Sword’? A Qualitative Study on Swedish Female Prisoners' Relationship toward Their Bodies

Our aim was to explore female prisoners' relationship toward their bodies by means of qualitative interviews. We interviewed 14 female prisoners aged 22–53 years. Four were convicted for violent crimes, seven for drug crimes, and three for more than one crime. All of them had been addicted to drugs and the most frequently used drug was amphetamine. To analyse the participants' relationship toward their bodies we used a thematic analysis. The main result encompasses three phenomena: worries about weight, negative emotions toward the body, and negative thoughts about the body. Analyses revealed that the female prisoners' relationship toward their bodies is a changeable process. Our analyses also showed that experience of physical and sexual abuse was a very important factor for understanding these women's relationship toward their bodies.     

Prediction of stature based on radiographic measurements of cadaver long bones: a study of the Croatian population

We tested a new approach to the stature prediction that could be used in the identification process of human skeletal remains of unknown identity. The stature of 19 female and 21 male adult cadavers was measured within 24 h after death and considered to be equal to the living stature. The antero-posterior radiographs of all limbs were taken, and the maximum length of the six long bones was measured from radiographs. There was a significant difference in the stature and maximum length of long bones between female and male cadavers (p<0.001 for all). The correlation between the stature and long bone length was the best for the humerus in females (r=0.792) and the tibia in males (r=0.891). Regression equations specific to the Croatian population were computed separately for each long bone in males and females and proven to be reliable in predicting the living stature of the individual.     

股东派生诉讼之比较

我国公司法在吸收了公司法理论最新研究成果并借鉴国外立法经验的基础上确认了股东派生诉讼制度。鉴于其在制度设计上突破了法律的一般规则,因此,我国立法在制度引进与创新过程中,不能对该制度在世界各国和地区的实践之利弊得失熟视无睹,而要在合理借鉴的同时结合我国实际进行深入研究,使得这项制度的移植具有生命力。文章在分析了派生诉讼制度的法理基础,就派生诉讼的主体、约束机制以及激励机制等方面进行了比较研究。     

Direct and Indirect Effects of Case Complexity, Guilty Pleas, and Offender Characteristics on Sentencing for Offenders Convicted of a White-Collar Offense Prior to Sentencing Guidelines

Previous research on the punishment of offenders convicted of a white-collar offense estimated models that specify only direct effects of defendant characteristics, offense-related variables, and guilty pleas on sentence severity. Drawing from conflict or labeling theories, much of this research focused on the effects of offender's socioeconomic status on sentence outcomes. Findings from this research are inconsistent about the relationship between defendant characteristics and sentence severity. These studies overlook how differences in case complexity of white-collar offense and guilty pleas may intervene in the relationship between offender characteristics and sentence outcomes. This study seeks to contribute to an understanding of federal sentencing prior to the federal sentencing guidelines by testing a legal-bureaucratic theory of sentencing that hypothesizes an interplay between case complexity, guilty pleas and length of imprisonment. This interplay reflects the interface between the legal ramifications of pleading guilty, prosecutorial interests in efficiency and finality of case disposition in complex white-collar cases, and sentence severity. Using structural equation modeling, a four-equation model of sentencing that specifies case complexity and guilty pleas as intervening variables in the relationship between offender characteristics and length of imprisonment is estimated. Several findings are noteworthy. First, the hypothesized interplay between case complexity, guilty pleas, and sentence severity is supported. Second, the effect of offender's educational attainment on sentence severity is indirect via case complexity and guilty pleas. Third, offender's race and gender effect length of imprisonment both directly and indirectly through the intervening effect of case complexity and guilty pleas. These findings indicate the need to specify sentencing models that consider the direct and indirect effects of offender characteristics, offense characteristics, and guilty pleas on judicial discretion at sentencing.     

The Use of Femoral Neck Axis Length to Estimate Sex and Ancestry

Having multiple reliable methods of estimating sex and ancestry from various skeletal features increases the likelihood of identifying skeletal remains. Femoral neck axis length (FNAL), as measured in living individuals, has been shown to vary by sex and ancestry. FNAL has not, however, been previously measured directly from skeletonized remains and investigated for its potential use in forensic anthropological applications. This research proposes a method for measuring FNAL from skeletal remains, determines the reliability and repeatability of the measurement, and assesses the validity of FNAL in sex and ancestry estimation. Results showed low interobserver error in the measurement of FNAL (TEM = 0.33 mm, R = 0.99). Significant differences in FNAL were found between sexes as well as between American Black, American White, and Native American groups. FNAL can correctly classify sex in ~86% of all cases and is considered valuable to sex estimation. The value of FNAL to ancestry estimation, however, is considered limited.     

利用荧光AFLP技术检测罂粟DNA多态性

目的 利用荧光AFLP检测技术检测罂粟植物DNA多态性。方法 用Axygen公司的AxyPrep DNA试剂盒提取了12株产于缅甸和中国云南省昆明市宜良县罂粟植株的DNA，用Eco RI和Mse I对总DNA进行酶切。连接人工接头，预扩增和选择性扩增，其产物在CEQ8000遗传分析系统上检测。结果 64对选择性扩增引物中8对引物能得到20条以上的扩增片断，具有高度多态性。结论 荧光AFLP技术可用于罂粟DNA多态性的检测。     

Quangos—Why Bother Counting Them When Whitehall Can't?

‘Mindless’ empiricism rules in British central government, bolstered by the use of prerogative powers and the absence of any ‘court of appeal’ to insist on definitions and uniformities. This gives arguments about quangos—arm's‐length bodies—a surreal quality. The Cameron coalition has created many new quangos, while claiming a cull. Unless and until Whitehall acquires, or is forced to acquire, better habits of mind, it may be a waste of time for academics and reformers to prepare taxonomies and call for more administrative rationality.     

日本血吸虫抱雌沟蛋白DNA疫苗的研究

为构建含日本血吸虫抱雌沟蛋白(SjGCP)完整ORF的核酸疫苗,评估该核酸疫苗在小鼠体内诱导抗血吸虫感染的免疫保护效果及其保护机制,将编码日本血吸虫大陆株抱雌沟蛋白基因ORF片段克隆到真核表达载体pVAX1中,用重组质粒pVAX1-SjGCP三次肌肉注射BALB/c小鼠,攻击感染血吸虫尾蚴,攻击感染后第42天剖杀小鼠冲虫,计算减虫率及肝和粪便的减卵率,评估其免疫保护效果。用流式细胞术(FCM)检测第3次免疫后小鼠淋巴细胞亚群CD4+、CD8+占总淋巴细胞的百分比及细胞因子IL-4、IFN-γ表达水平,探讨核酸疫苗的免疫机制。结果显示,小鼠经pVAX1-SjGCP质粒免疫后诱导了31.9%的减虫率,以及47.85%、68.04%的肝减卵率和粪便减卵率,与PBS组差异显著;pVAX1-SjGCP免疫组淋巴细胞亚群CD4+、CD8+百分比增加,细胞因子IFN-γ及特异性IgG水平提高,与pVAX1组差异显著。结果表明,血吸虫抱雌沟蛋白基因DNA疫苗能够诱导宿主细胞免疫和体液免疫应答,产生Th1/Th2型混合的细胞免疫反应,具有一定的抗血吸虫感染的免疫保护效果。     

Molecular Identification of Three Indian Snake Species Using Simple PCR–RFLP Method*

Abstract: Three endangered Indian snake species, Python molurus, Naja naja, and Xenochrophis piscator are known to be significantly involved in illegal trade. Effective authentication of species is required to curb this illegal trade. In the absence of morphological features, molecular identification techniques hold promise to address the issue of species identification. We present an effective PCR–restriction fragment length polymorphism method for easy identification of the three endangered snake species, Python molurus, Naja naja, and Xenochrophis piscator. A 431‐bp amplicon from cytochrome b gene was amplified using novel snake‐specific primers following restriction digestion with enzymes Mbo II and Fok I. The species‐specific reference fragment patterns were obtained for the target species, which enabled successful identification of even highly degraded shed skin sample confirming the utility of the technique in case of poor‐quality DNA. The assay could be effectively used for forensic authentication of three Indian snake species and would help strengthen conservation efforts.