红外光谱模式识别技术鉴定海洛因同一来源

本文应用红外光谱指纹图特征,通过研究模式识别检索的4种识别技术,考察对同一批次毒品的同一认定的置信度,从而筛选最佳鉴定方法.     

一种基于Otsu算法的印章二值化算法

本文提出了一种基于Otsu算法的印章二值化法.该算法通过对算法的改进,考虑了印章图象象素的灰度分布值和它们邻域象素的平均灰度值分布情况.并不是用于整幅印章图象,而是用于分块的印章图象.实验证明,该算法适合印章的二值化处理.     

Regulation in Comparative Perspective

Structural changes in the world economy pose challenging new problems for comparative policy analysis. One such problem is the harmonization of domestic policies and institutions, which the Uruguay Round of GATT negotiations has identified as a key principle of international economic relations. Harmonization may mean the creation of a single policy space out of a number of distinct jurisdictions. It can also mean the adoption of common policy goals or general principles that national governments can pursue by different strategies. Comparative analysis can help in choosing the type of harmonization most appropriate in a given context. This article analyzes the development of harmonization strategies in the European Community/European Union. The European experience shows that far-reaching economic integration can be achieved without suppressing cultural diversity and legitimate differences in national preferences.     

心理测试中的犯罪者心理研究

从犯罪者个性因素和犯罪环境因素两方面,对心理测试中的犯罪者心理进行分析。通过测前准备阶段分析犯罪者心理,缩小犯罪嫌疑人,确定侦查方向。正式测试时把握犯罪者心理,完整地将被测人与犯罪者区分开来,帮助侦查人员判断和逮捕犯罪嫌疑人,破获案件。     

甲基苯丙胺稀土荧光试纸条的研制

目的建立一种检测尿液中甲基苯丙胺物质的高灵敏度检测方法。方法以稀土荧光纳米颗粒为标记物,采用反应杯+试纸条的反应模式,建立了免疫层析法,用于尿液中甲基苯丙胺的定性检测。结果用所制备的试纸条检测尿液中的甲基苯丙胺,肉眼和仪器判读的敏性均为100ppb,与吗啡、亚甲二氧基苯丙胺、氯胺酮、苯丙酮、可卡因等无交叉反应;将制备的反应杯和试纸条置于37℃7d,试纸条的性能没有明显降低。结论本研究建立的甲基苯丙胺免疫层析法用于定性检测尿液中的甲基苯丙胺,具有较高的灵敏性和较高的应用价值。     

Inferring ancestral origin using a single multiplex assay of ancestry-informative marker SNPs

Tests that infer the ancestral origin of a DNA sample have considerable potential in the development of forensic tools that can help to guide crime investigation. We have developed a single-tube 34-plex SNP assay for the assignment of ancestral origin by choosing ancestry-informative markers (AIMs) exhibiting highly contrasting allele frequency distributions between the three major population-groups. To predict ancestral origin from the profiles obtained, a classification algorithm was developed based on maximum likelihood. Sampling of two populations each from African, European and East Asian groups provided training sets for the algorithm and this was tested using the CEPH Human Genome Diversity Panel. We detected negligible theoretical and practical error for assignments to one of the three groups analyzed with consistently high classification probabilities, even when using reduced subsets of SNPs. This study shows that by choosing SNPs exhibiting marked allele frequency differences between population-groups a practical forensic test for assigning the most likely ancestry can be achieved from a single multiplexed assay.     

谈摹仿笔迹的检验

摹仿笔迹是违法犯罪人常用的一种手段，也是笔迹鉴定中比较困难的一种，在司法实践中比较常见。本文通过对摹仿笔迹进行一定的理论分析，提出对摹仿笔迹检验的对策，以期能为案件的顺利侦破及能得到公正的审判提供依据。     

高职院校法律专业的进路与出路

统一司法考试对高等职业院校法律专业的生存和发展带来巨大冲击，也出现了要求取消高职院校法律专业的呼声。高职院校法律专业要摆脱困境，其进路是要走出思想误区，端正思想认识；出路是要有准确的办学定位，以市场为导向，构建多元化的教学课程和实践课程体系，着眼于学生应用能力的培养，形成差异化能力。     

杞菊地黄丸快检方法研究

目的:制定杞菊地黄丸的快检方法.方法:采用乙醇研磨制备供试品溶液,经薄层展开后,分别对丹皮酚、熊果酸、马钱苷进行定性鉴别.结果:丹皮酚、熊果酸和马钱苷均可用薄层色谱法(thin layer chromatography,TLC)快速检出.结论:所建立的方法快速、简便,可准确地对丹皮酚、熊果酸、马钱苷进行定性鉴别,可作为该制剂的快速筛检方法.     

论司法实践中的痕迹鉴定和同一认定结论

痕迹鉴定是一种司法活动，经鉴定后得出的结论尤其是同一认定结论在司法实践中具有很大的价值，某些时候成为定案的主要或唯一证据。但在实践中，却曾发现本来只能给出种类认定等其它结论，却得出了同一认定结论；或者能够得出同一结论却只给出种类认定等其它结论。前者有可能误导法官，被法庭采信成为定案的证据之一，导致冤、假、错案：后者则淹没了同一认定结论在司法实践中应有的价值。只有掌握痕迹鉴定的规律，充分挖掘痕迹本身的信息，才能最大程度发挥同一认定结论的司法价值。