单细胞凝胶电泳检测大鼠死后肝细胞核DNA降解

目的应用单细胞凝胶电泳技术(SCGE)检测大鼠死后肝细胞核DNA降解规律,分析与死亡时间的关系,为早期死亡时间的推断提供新的方法。方法在大鼠死后30h内,每隔3h取肝组织样本进行单细胞凝胶电泳,用共聚焦显微镜摄取彗星图像,应用彗星图像分析软件(IM I1.0)进行图像分析,并作统计学分析。结果死后大鼠的肝细胞在电泳图像上出现明显的彗星形拖尾,其尾长(TL)、尾矩(TM)在一定的时间范围内(0~18h)随死亡时间的延长而逐渐增大,二者均与死亡时间(PM I)呈现一定的相关回归关系。结论单细胞凝胶电泳技术可应用于早期死亡时间的推断。     

"三个代表"与党的形象

“三个代表”是党的本质与党的形象的统一 ,是衡量和评价党的形象的客观标准。“三个代表”对新世纪党的形象提出了更高的要求 ,必须在全党牢固树立形象意识 ,夯实形象建设基础 ,努力把党的形象提高到“三个代表”的时代高度。     

试析广告中的性别差异与角色误区

现代广告创意中的性别表现存在着一定的不合理因素,广告中的性别与社会角色之间的关系经常是极度模式化的,其中不平等的权力关系随处可见.这种权力关系首先表现为广告中男女之间看与被看的关系模式,其次表现为男主外、女主内的社会--家庭分工模式.广告创意中性别因素与表现形式的不同,是既定的男权中心文化的产物,对男女两性的发展都有一定的负面影响.     

《法国民法典》成功制定的经验及其借鉴

《法国民法典》是举世闻名的民法典 ,它的制定和内容具有自身独特的特点。我国《宪法》和其他法律的制定及修改以及立法机构的设置 ,可以借鉴其经验。     

Politics and Image: The Conceptual Value of Branding

This article argues that the brand concept is a powerful tool for understanding political images. It challenges typical economic versions of political marketing that tend to deemphasize the significance of communication, popular culture, and personality in politics and argues that the brand as a concept can bring together the economic and the aesthetic, rational choice and cultural resonance. It proposes a model of brand distinctiveness and argues that this may be useful both in the analysis of party communication and in the normative evaluation of that communication.     

The Effect of Image Quality and Forensic Expertise in Facial Image Comparisons

Images of perpetrators in surveillance video footage are often used as evidence in court. In this study, identification accuracy was compared for forensic experts and untrained persons in facial image comparisons as well as the impact of image quality. Participants viewed thirty image pairs and were asked to rate the level of support garnered from their observations for concluding whether or not the two images showed the same person. Forensic experts reached their conclusions with significantly fewer errors than did untrained participants. They were also better than novices at determining when two high‐quality images depicted the same person. Notably, lower image quality led to more careful conclusions by experts, but not for untrained participants. In summary, the untrained participants had more false negatives and false positives than experts, which in the latter case could lead to a higher risk of an innocent person being convicted for an untrained witness.     

“朋友·伙伴”意象下美国台海政策的局限—以美国对“入联公投”的政策态度为例

美国长期以来对台湾形成了“朋友·伙伴”的固有意象。在美国和台湾针对“入联公投”的博弈中，美国不断强渊“入联公投”不影响美台“朋友”与“伙伴”关系的性质，也没有对陈水扁当局采取有实质意义的惩罚措施，使美国的政策有不少保留的空间。美国对“朋友·伙伴”意象的盲目认知和坚持，无法阻止台湾某些政治人物和“台独”势力的挑衅行为，无法取信于中国政府和两岸人民，也不利于美国政府的决策者加深对台湾问题重要性和敏感性的认知，不利于台海地区长期的和平、稳定与发展。     

论中国古代的水仙文学

中国古代文学中的"水仙",大体有两种意指类型:一者为通过神话、传说衍生出来的水中之仙,一者为花卉植物意象.两者往往互相渗透,从而使得对水仙植物意象的歌咏产生了更加丰富灵动的意韵,以及浪漫清幽的艺术魅力.     

借助三色空间增强图像中指纹反差

如何部分地增强图像反差是刑事技术工作中最常遇到的难题之一。借助数字图像处理技术,可以根据像素值差异从原始图像提取感兴趣部分信息。本文讨论了这种基于像素值差异进行指纹背景分离的方法,可为指纹识别提供便利。