用ELISA法进行AB型体液（斑）与A型、B型混和体液（斑）的血型测定和鉴别

在法医物证检案工作中,经常会遇到ABO型血型的判定,一般通过吸收试验、解离试验、以及混和凝集试验就能够进行分型.但在实际工作中,遇到的检材多数并非单一的体液,而是两种或者两种以上体液的混和斑.特别是强奸案的鉴定,阴道内提取的检材常常是由男性精液和女性阴道分泌物的混合物,要从混和斑中判断各自的血型,目前仍较困难.国内外许多学者都进行了有关的实验,试图     

缺血性中风气虚血瘀证动物模型的初步研究

选用中老龄大鼠，采用饥饿、劳累、高脂饮食、结扎左侧侧颈总动脉的方法，制作缺血性中风气虚血瘀证模型。通过对一般体征、局部脑组织血流量、脑水肿、血液流变学、血浆血栓素Ａ２（ＴＸＡ２０、前列环素（ＰＧＩ２）的观察。结果表明：模型鼠出现偏瘫症状；脑组织含 显著增高，脑水肿明显；ｒＣＢＦ显著增高，ＰＧＩ２显著降低，血液呈高度浓、粘、凝、聚状态。符合缺血性中风气虚血瘀证的临床特点。     

荧光标记STRs复合扩增分析混合血样品

探讨应用荧光标记STRs复合扩增技术能够检测出混合血样品中较少个体成份的最低检出量及所占的比例多少与基因型的峰值高低是否存在一定的剂量反应关系。采用荧光标记STRs复合扩增技术 ,分析 4对两无关男 /女的混合血样品。扩增基因座包括D8S1179、D2 1S11、D18S5 1、D3S135 8、vWA、FGA、D5S818、D13S317、D7S82 0及性别Amelogeine。结果表明 ,对经用酚 /氯仿有机溶剂方法提取的混合血样品中较少成份的最低检出量为 ,能够从10ng混合DNA中检出 1ng的较少成份 ;从 10∶90至 5 0∶5 0 5个不同比例组 ,较少成份所占比例多少与其对应基因型峰值的高低呈现一定的正相关趋势。应用荧光标记STRs复合扩增技术可能较好地解决混合血样品的个体识别问题     

衍生化-液相色谱-质谱联用测定血中氟乙酸类杀鼠剂

目的建立血中氟乙酸类杀鼠剂衍生化-液相色谱-电喷雾离子阱质谱分析方法。方法血样经乙腈沉淀蛋白后离心,上清液中加入衍生化试剂α-溴苯乙酮和催化剂四丁基溴化铵,在60℃水浴中加热90min,衍生化产物直接进行液相色谱-电喷雾离子阱质谱联用分析。结果血中氟乙酸根浓度在0.15μg/mL～15.40μg/mL之间具有良好的线性关系,最低检出限为0.020μg/mL。结论本文建立的方法操作简便、灵敏、快速,适用于刑事案件中氟乙酸类杀鼠剂的快速检验。     

Infrared Imaging of the Crime Scene: Possibilities and Pitfalls

All objects radiate infrared energy invisible to the human eye, which can be imaged by infrared cameras, visualizing differences in temperature and/or emissivity of objects. Infrared imaging is an emerging technique for forensic investigators. The rapid, nondestructive, and noncontact features of infrared imaging indicate its suitability for many forensic applications, ranging from the estimation of time of death to the detection of blood stains on dark backgrounds. This paper provides an overview of the principles and instrumentation involved in infrared imaging. Difficulties concerning the image interpretation due to different radiation sources and different emissivity values within a scene are addressed. Finally, reported forensic applications are reviewed and supported by practical illustrations. When introduced in forensic casework, infrared imaging can help investigators to detect, to visualize, and to identify useful evidence nondestructively.     

Preliminary Study on the Effect of Heated Surfaces Upon Bloodstain Pattern Analysis

Bloodstain pattern analysis (BPA) involves the interpretation of distinct blood patterns found at crime scenes following a violent act. In this paper, we explored for the first time the effects of surface temperatures upon blood impacting a horizontal surface (steel) with its implications in BPA explored. Specific surface temperatures were explored over the range 24–250°C which relate to the four major boiling regimes of liquid media; natural convection, nucleate boiling, transition boiling, and film boiling, where a series of blood drops tests were performed at varying impact velocities. Blood was found to separate into its components at temperatures of 50°C+, displayed as temperature induced blood rings, where a single secondary and a series of further inner rings are exhibited. This consequently led to the development of a new constant expressing the decrease in spread factor (D_s/D_o) at the secondary ring.     

超高效液相色谱-质谱法分析人全血中的氯化琥珀胆碱

目的建立超高效液相色谱串联质谱法（UPLC-MS/MS）测定氯化琥珀胆碱的方法。方法空白血中加入氯化琥珀胆碱标准溶液,经pH8氨水稀释后,涡旋离心,上清液过混合型弱阳离子交换柱（WCX）进行纯化,采用UPLCMS/MS检测。质谱检测采用正离子扫描,多反应离子监测模式（MRM）。以氯化琥珀胆碱母离子145.1（m/z）和子离子93.6及115.6（m/z）定性、定量。结果全血中氯化琥珀胆碱的回收率在75%~87%,日内和日间RSD均小于15%,最小检出限为0.01ng/mL。结论应用该方法对多起实际案例进行了检验,证明该方法快速、简便、灵敏,适用于氯化琥珀胆碱中毒的毒物学检验。     

Economic Aid and Peace Implementation: The African Experience

Abstract

This paper examines the potential importance of externally-facilitated peace dividends and donor coordination in sustaining peace after the signing of an accord. We extend our previous research on US performance after civil wars to learn if adversary assumptions on peace dividends have additional positive impact when a wider sample of major Western European donors is included. Was the lack of US follow-through compensated for in whole or in part by the extension of development assistance allocations from European allies? We find that cases in which donors provide significant and sustained post-conflict aid are somewhat less likely to return to civil war than those who do not receive comparable assistance. Moreover, we find in such cases that donor coordination reinforced behaviour that encouraged the implementation process, providing an extra incentive for maintaining the peace agreement over the five-year threshold and beyond.     

Gender,Development and Security in Yemen’s Transition Process

ABSTRACT

How policies at international level approach the gender dimension becomes salient, even urgent, for women whose countries are immersed in war and conflict, and who without effective governance at more local levels, rely entirely on these policies. The way Yemen is presented in the documents and media reports from selected members of the ‘Friends of Yemen’ donor group is in this study discussed in light of a range of narratives identified by Stern and Öjendal (2010) 2005; Cockburn 2007; Henry 2007; Shepherd 2008), ‘gender’ seems to be relevant to international and put into a feminist security perspective. The further aim is to reflect on the inter-linkages of gender, security and development at the level of donor motivations for aid, given on the one hand the recent prominence of the security agenda in the policy discourses of international interventions, and on the other the international attention to women’s contribution to development in Yemen. I ask if a gender dimension is highlighted, subsumed, or absent. Despite feminist analyses of security as deeply gendered (e.g. Tickner 1992) ‘gender’ seems to be relevant in international security policies by implication only: Since it is necessary to include and consider gender in development processes, gender is relevant for the security-development nexus. This is how ‘gender’ feeds smoothly into existing policy discourses which claim that development is dependent on security in the country that needs to develop and vice versa; its security is dependent on development.