根据印文特征分析印章的材质与制作方法

在文件检验实际鉴定工作中发现,印文特征的形成既与制作方法有关又与印章的材质有关。如果能够通过印文特征确定其检材印文与样本印文是两种不同方法刻制或使用不同材质的印章所盖印,就不难做出正确的鉴定结论。通过分析印文特征的成因,可以确定其所盖印文的印章材质及其制作方法,进而识别印文的真伪。     

二乙酰吗啡盐酸盐标准物质的研制（1）—均匀性和稳定性检验

目的研制二乙酰吗啡盐酸盐标准物质,并检验其均匀性和稳定性。方法采用中压快速纯化制备系统分离纯化海洛因样品得到二乙酰吗啡盐酸盐,确认其结构后,采用统计学方法进行均匀性检验和稳定性检验。结果二乙酰吗啡盐酸盐标准物质含有0.88个结晶水,其瓶间不均匀性产生的标准不确定度为0.29%,短期和长期稳定性的标准不确定度分别为0.04%和0.46%。结论研制的二乙酰吗啡盐酸盐标准物质均匀性和稳定性良好。     

真空镀膜中膜系选择对潜手印显现的影响

目的探究在真空镀膜中不同镀膜材料能否显现出潜手印并比较不同镀膜金属显现手印的效果。方法使用不同的镀膜金属显现多种类型客体表面的潜手印。结果存在可替换镀膜材料。结论可替换镀膜金属对潜手印显现的效果良好,纹线清晰连贯,背景反差大,并对特定客体上的手印显现极具优势。     

物联网及无线定位技术在物证管理中的应用

物证监控信息化管理系统发展大趋势是智能化,综合利用物联网RFID技术可对物证进行智能化识别、登记、使用、监控以及生命周期管理等;应用RFID与ZigBee相结合的室内无线定位技术,可实现自动获取、管理物证实时可控的状态信息,防止物证被盗或丢失,提高管理和维护效率。     

Local plant use and traditional conservation practices in Nhema communal area,Zimbabwe

Abstract

This article is based on a study that was carried out in Nhema communal area in Midlands Province, Zimbabwe, with the main objective of documenting local plant use and traditional conservation practices. Data collected through household semi-structured and open interviews showed that 46 plant species in 40 genera and 24 families were mainly used for firewood, construction wood, food and traditional medicine. Other minor uses included using plant species for making mats, rope and shading. Firewood and construction wood ranked as the most important tree products used. The preferred plant species included: Julbernardia globiflora (Mutondo); Brachystegia spiciformis (Musasa); Terminalia sericea (Mususu); Brachystegia boehmii (Mupfuti); Combretum imberbe (Mutsviri); Combretum molle (Mubondo) and Burkea africana (Mukarati). Some of the highly preferred species, considered to be declining in the local environment, included Adenium obesum (Chisvosve); Azanza garckeana (Mutohwe); Brachystegia boehmii (Mupfuti); Brachystegia spiciformis (Musasa); Burkea africana (Mukarati); Combretum imberbe (Mutsviri); Combretum molle (Mubondo); Dalbergia melanoxylon (Mukonashanhu); Diospyros mespiliformis (Musuma); Elephantorrhiza goetzei (Ntorani); Julbernardia globiflora (Mutondo); Phragmites australis (Shanga; Poulzozia hypoleuca (Munanzwa); Pterocarpus angolensis (Mubvamaropa); Terminalia sericea (Mususu) and Uapaca kirkiana (Muzhanje). Highly preferred and declining species were characteristically large trees and shrubs. Local people are aware of the need to conserve plant resources in order to protect the environment and avoid the extinction of these rare species.Traditional conservation practices have substantially contributed to the conservation of plant species in Nhema communal area. The protection of indigenous timber, fruit trees, trees with social and cultural significance, the use of deadwood for firewood, the use of eucalyptus trees as construction wood and the occurrence of sacred woodland areas represented some of the traditional conservation techniques employed in Nhema communal area. These local practices demonstrate the dynamism and significance of African indigenous knowledge systems.     

人体组织/体液来源的法医学鉴定

生物检材的组织/体液来源鉴定是法医学检验的重要内容之一。法医学组织/体液鉴定的方法较多,无论是基于酶促反应或免疫学检测的传统鉴定方法,还是光谱法或近年来基于mRNA、microRNA或DNA甲基化差异的分子生物学组织鉴定技术,均各有特点。本文就各种法医学组织/体液鉴定方法的特点及其法医学应用价值作一简要综述。     

物证鉴定视野下的物质转移理论诠释与定位

物质转移理论起源于20世纪初叶,随着物证鉴定理论与实践的发展和完善,物质转移理论的内涵也不断深化。现代意义上的物质转移理论主要研究客观存在的物体在外力作用下,相互之间发生的物质交换及转移。作为物证鉴定基础理论之一,物质转移揭示出的客观规律对物证技术,尤其是物证鉴定工作具有重要的指导意义。该理论作为诉讼案件中获取鉴定材料的科学基础,其价值不仅在于为确定鉴定方法提供了有力依据,更为物证鉴定提供了重要的理论支撑。     

司法会计鉴定实务中亟需解决的几个问题

近年来我国经济飞速发展,经济犯罪案件越来越多,对司法鉴定业务的需求也在迅速增长,社会中介司法鉴定机构越来越多地介入了各种诉讼案件中,司法会计鉴定更是近年来介入最迅速的鉴定类别之一。但是,因司法会计鉴定不完善而使经济犯罪案件错审、错判的现象屡屡出现,影响了司法的公正性和严肃性。本文就司法会计鉴定实务中的技术标准、鉴定程序、检材范围、专业资格和责任追究等问题发表意见。     

“WTO中-美欧墨原材料贸易案”解读与思考

全球化的发展使得资源和环境逐渐被纳入国家主权的范畴,随之而来的是自由贸易与资源、环境、主权的冲突。随着资源竞争的日益激烈,原材料贸易与资源主权、原材料贸易与环境保护的矛盾日益凸显,现行多边贸易体制的改革也面临决择。     

Support for the environment post-transition? Material concerns and policy tradeoffs

Though many individuals are aware of the need to address environmental concerns, fewer are willing to pay for climate action or think the environment should be a priority for government spending. One compelling reason is that they prioritize using scarce resources to address immediate material concerns. This is particularly likely for individuals facing absolute material scarcity or for those who think they are relatively economically worse off, especially in contexts characterized by rapid transformation and volatility in the levels and quality of social welfare provision. To test these expectations, we analyze survey data from formerly Communist economies, which today find themselves with vastly different fortunes. Empirical findings suggest that absolute and relative material scarcity affect opinions regarding government spending on, and the willingness to pay more for, environmental action. However, willingness to pay more for government public services, inclusive of anti-poverty initiatives, has an impact on willingness to pay more for climate action, but in counter-intuitive ways. Overall, the results appear to suggest that explicitly addressing and relating individual living standards and inequality with environmental concerns may expand support for climate action.