湖北地区德国牧羊犬10个微卫星DNA基因座遗传多态性研究

目的研究85头德国牧羊犬的10个基因座多态性。方法选用美国应用生物系统公司的10个商用犬微卫星基因座荧光标记复合扩增试剂盒进行PCR、并进行统计学分析。结果对85头德国牧羊犬的10个基因座的多态性研究表明,10个基因座累积DP值在0.9999972,非父排除率在0.9399,微卫星DNA基因座PEZ6、PEZ8、FHC2054的等位基因数均在8个以上,DP值接近或超过0.9,杂合度接近或超过0.7,能有效地应用犬的个体识别和亲权关系鉴定,其它7个基因座均未达到理想的个体识别和亲权鉴定使用条件。结论联合使用多个犬微卫星基因座,可以用于犬的个体识别和亲权鉴定。     

用PCR扩增X-Y-特异片段性别鉴定的研究

采用5%Chelex-100处理方法提取 DNA,用 PCR 扩增 Amelogenin 基因片段检测血痕和毛根的性别。扩增一个样品只需1/10体积3mm~2血痕 Chelex-100处理液或1/10体积一根毛发 Chelex-100处理液(含模板 DNA)。100例血液样品结果显示,在男性可同时显现977bpX 特异片段和788bpY 特异片段,而在女性只观察到977bp X 特异片段,该方法用于性别鉴定可靠、灵敏、方便。     

透视我国公民平等就业权的法律保护——以国际法与比较法为视角

保护公民平等就业的合法权益,是维护人权的基本要求。有效保护劳动者在就业中不受歧视,是世界各国都共同关注的重要问题。正是从这个角度出发,国际社会通过了一系列的公约,各国也分别建立了相应的法律制度,其中有很多先进的经验值得借鉴,在评析英、美、加拿大、日本等国的法律制度的基础上,对比我国的现状,提出一些措施,以健全我国相应的法制,更充分地保证我国公民平等的就业机会和权利。     

禁止法律规避制度在中国国际私法中的地位——对《民法典草案》第九编禁止法律规避条款的思考

法律规避是国际民商事交往中一种常见的欺诈行为。在禁止法律规避的问题上,各国的国际私法理论、立法和实践各有不同的主张。在我国,现行司法解释关于禁止法律规避的规定尚不完善,拟以专编规定我国国际私法规范的民法典草案。对法律规避问题亦没有给予足够的重视。本文围绕禁止法律规避制度在中国国际私法中的地位问题,提出了禁止法律规避应当是我国国际私法中一项独立的、一般性的、非歧视性的制度的观点,并在分析《民法典草案》第九编的体例和内容的基础上,对如何完善我国国际私法中的禁止法律规避制度提出了相应的建议。     

抛尸现场相关物品的辨析

抛尸现场的相关物品是指在抛尸现场与尸体有直接联系的有关物品。刑技人员在做好现场勘验和尸体检验的同时要认真发现、提取、检验与尸体有直接联系的有关物品,分析研究有关物品的内在联系信息,为案件的侦破提供方向,为诉讼提供证据。     

Color separation in forensic image processing

In forensic image processing, it is often important to be able to separate a feature from an interfering background or foreground, or to demonstrate colors within an image to be different from each other. In this study, a color deconvolution algorithm that could accomplish this task is described, and it is applied to color separation problems in document and fingerprint examination. Subtle color differences (sometimes invisible to the naked eye) are found to be sufficient, which is demonstrated successfully for several cases where color differences were shown to exist, or where colors were removed from the foreground or background. The software is available for free in the form of an Adobe Photoshop-compatible plug-in.     

Genetic polymorphism at 15 tetrameric short tandem repeat loci in four aboriginal tribal populations of Bengal

POPULATIONS: This study reports the genetic polymorphism observed at 15 short tandem repeat loci D3S1358, TH01, D21S11, D18S51, D5S818, D13S317, D7S820, D16S539, CSF1PO, vWA, D8S1179, TPOX, D2S1338, D19S433, and FGA in four aboriginal populations of Bengal. The analysis was performed to decipher the suitability of CODIS as well as six other highly polymorphic and unlinked markers in Forensic Testing. Studied populations include four tribes: Karmali, Kora, Maheli, and Lodha.     

Violent Sex Offenses: How are They Best Measured from Official Records?

In the United States, sexually violent predator (SVP) commitment statutes generally require assessment of an offender's risk of subsequent sexual violence. Current actuarial methods for predicting sexual reoffending were actually designed to predict something else—charges or convictions for offenses deemed sexual based on information obtained from police “rapsheets” alone. This study examined the referral and past offenses of 177 sex offenders. Results showed that police rapsheets (and data based on them) underestimated the number and severity of sexually motivated violent offenses for which sex offenders were actually apprehended. Rapsheet violent offenses seemed a more accurate index of the conduct addressed by SVP legislation than were rapsheet sex offenses. We suggest that, when evaluating sex offenders for SVP status, actuarial instruments designed to predict violent recidivism (as measured by rapsheet violent reoffenses) might be preferable to those designed to predict sexual recidivism (as measured by rapsheet sexual reoffenses).

论社会歧视的社会心理根源及其消除方式--社会心理学视野下的社会歧视

社会歧视是指针对某一特殊社会群体的不公平、不合理、排斥性的社会行为或制度安排.从社会心理学看,这是由社会偏见这样一种不公正的、具有否定性和排斥性倾向的社会态度所导致的,属于一种刻板印象.但社会偏见并不一定导致社会歧视,实现这种转变与被歧视者自身力量相对弱小、"谈判力"不足相关.要减少或消除社会歧视,一方面必须壮大被歧视者的力量,增强其"谈判力",阻止已有的偏见向歧视的转化;另一方面通过被歧视者的努力,加强沟通来改变固有的刻板印象并防止新的刻板印象的产生.     

Morphological and spectroscopic measurements of plastic bags for the purpose of discrimination

The discrimination of noncolored transparent polyethylene bags was studied by several nondestructive and semidestructive analytical methods. X-ray diffraction, infrared spectroscopy, and optical microscopy (differential interference contrast microscopy and phase contrast microscopy) were applied to polyethylene films. X-ray diffraction was used to distinguish variations in the crystalline phase, infrared spectroscopy was used to distinguish variations in the molecular components, and optical microscopy was used to distinguish the different surface morphologies. The results show that X-ray diffraction classifies the crystalline phase of the film depending on whether it is made from low-density polyethylene, linear low-density polyethylene, or high-density polyethylene; that infrared spectroscopy is useful to distinguish the molecular components and it is the most discriminating technique; and that optical microscopy discriminate films easily by their morphological differences.