二十世纪九十年代国产电影中人物群像辨析

20世纪90年代的中国社会,多极发展趋势和走向极大拓展了人们的视野,影响着人们的价值观念、思维方式、生活方式与心理心态。社会群体结构的变迁打破了新中国成立以来工、农、商、学、知识分子的划分,边缘及多样群体的崛起以及旧群体的重新组合使得90年代社会群体划分愈加繁杂。反映在银幕上,国产电影以其特有的人文关怀和思考,在银幕上塑造了形形色色的人物,为90年代中国影坛留下一份影像言说和文化思辩。     

关于刑案现场数码影像资料采集与存储新方式的研讨

在全面推广使用数码摄影技术的今天,对于刑事案件现场勘查中所摄的能够证明一定犯罪事实成立的案件现场数码原版照片资料,采用何种方式保存更具有永久性,防止被加工与修改的可能？按照怎样的工作流程进行,从搜集与保全证据的角度上看,其程序更具有合法性、可操作性呢？对此学术讨论一直没有一个定论。刑事案件现场影像资料应面对证人采集与多介质临场存储。     

关于我国开展资产证券化几个法律问题的探讨

在资产证券化比较发达的国家,围绕资产证券化已建立起较为完备的配套法律制度,甚至,有的国家对资产证券化进行了专门的立法.当前,资产证券化在我国还是新鲜事物,围绕其在中国的开展及发展有众多的相关法律问题需要解决.     

Comparative Assessment of a Novel Photo‐Anthropometric Landmark‐Positioning Approach for the Analysis of Facial Structures on Two‐Dimensional Images

Positioning landmarks in facial photo‐anthropometry (FPA) applications remains today a highly variable procedure, as traditional cephalometric definitions are used as guidelines. Herein, a novel landmark‐positioning approach, specifically adapted for FPA applications, is introduced and, in particular, assessed against the conventional cephalometric definitions for the analysis of 16 landmarks on ten frontal images by two groups of examiners (with and without professional knowledge of anatomy). Results showed that positioning reproducibility was significantly better using the novel method. Indeed, in contrast to the classic approach, very low landmark dispersions were observed for both groups of examiners, which were usually below the strictest clinical standards (i.e., 0.575 mm). Furthermore, the comparison between the two groups of examiners highlighted higher dispersion consistencies, which supported a higher robustness. Thus, the use of an adapted landmark‐positioning approach proved to be highly advantageous in FPA analysis and future work in this field should consider adopting similar methodologies.     

Robust Shoeprint Retrieval Method Based on Local‐to‐Global Feature Matching for Real Crime Scenes

In this study, an automatic and robust crime scene shoeprint retrieval method is proposed. As most shoeprints left at crime scenes are randomly partial and noisy, crime scene shoeprint retrieval is a challenging task. To handle partial, noisy shoeprint images, we employ denoising deep belief network (DBN) to extract local features and use spatial pyramid matching (SPM) to obtain a local‐to‐global matching score. In this study, 536 query shoeprint images from crime scenes and a large scale database containing 34,768 shoeprint images are used to evaluate the retrieval performance. Experimental results show that the proposed method outperforms other state‐of‐the‐art methods in terms of retrieval accuracy, feature dimension, and retrieval speed. The proposed method achieves a cumulative match score (CMS) of 65.67% at top 10 which is 5.60% higher than the second best performing method.     

The effect of household corrosive substances on latent fingermark development in the context of deliberate corrosive substance attacks

Corrosive substance attacks (CSA) are a prevalent issue in the UK with 525 offenses involving a corrosive substance reported to the police in the year ending March 2022. Easy availability, low cost, and concealability in public are common reasons for choosing a corrosive substance as a weapon. The Metropolitan Police revealed that 68% of 1849 CSA cases resulted in no suspect identified or evidential difficulties. There is limited research into the effect of corrosive substances on latent fingermarks. This study aimed to determine the potential for fingermarks to be recovered from surfaces exposed to a household corrosive substance within the context of a deliberate CSA. Natural and sebaceous-loaded fingermarks were exposed to Domestos bleach, Harpic limescale remover (hydrochloric acid-based) and lemon juice. Harpic limescale remover had the most detrimental effect, with only 7.1% of fingermarks (n = 378) exposed being identifiable (defined as sufficient clear ridge detail for identification) after enhancement, followed by bleach with only 10.3% of fingermarks (n = 378) identifiable. Lemon juice had the least detrimental effect on fingermarks, with 40.5% fingermarks (n = 378) identifiable compared to 53.4% for the controls (not exposed to any substance; n = 378). Throughout the study, fewer natural fingermarks were identifiable after exposure to corrosive substances compared to sebaceous fingermarks which was as expected. Overall, this study demonstrated that there is potential to recover latent fingermarks, depending on their composition, following exposure to a household corrosive substance. This area warrants further research to establish best practice to maximize the potential to recover identifiable fingermarks.     

数码翻拍的图像质量分析及应用标准化探讨

翻拍是司去鉴定中固定平面类证据的常用方法之一。数码翻拍突破了传统翻拍的界限。提供了高效方法。但其图像质量及应用标准化研究尚未形成体系。本文以数码相机为例，深入分析影响翻拍质量的各因素，并对其在司法实践中如何保证和提高翻拍质量进行技术方法上的探讨。通过分析研究。界定了数码翻拍中器材使用标准、拍摄条件标准及操作标准。为司法鉴定中的翻拍应用标准化提供了借鉴与参考。     

论电子图像时代文学的独立品格

针对文学终结论的提出,论述电子图象时代文学的独立品格:文学与影视艺术居于不同的层面,因欣赏主体的不同,文学有独自的生存空间.在反映物象上,文学虽然没有影视艺术那样直观,但文学有独特的手段--审美意象,可以赋予客观物象以丰富的人文蕴涵.     

The Effects of Gender and Family,Friend, and Media Influences on Eating Behaviors and Body Image During Adolescence

The current study expands upon body image research to examine how gender, self-esteem, social support, teasing, and family, friend, and media pressures relate to body image and eating-related attitudes and behaviors among male and female adolescents (N = 177). Results indicated that adolescents were dissatisfied with their current bodies: males were concerned with increasing their upper body, whereas females wanted to decrease the overall size of their body. Low self-esteem and social support, weight-related teasing, and greater pressures to lose weight were associated with adolescents’ negative body esteem, body image, and eating attitudes. Females displayed more high risk eating behaviors—which were associated with more psychosocial risk factors—than males, whose high risk attitudes and behaviors were only associated with low parental support and greater pressure to be muscular. Reducing adolescents’ perceptions of appearance-related pressure from family and friends may be key for enhancing body image and decreasing links between low self-esteem and negative eating behaviors and weight-related perceptions. Rheanna N. Ata is currently a research assistant at the Weight Control and Diabetes Research Center, Miriam Hospital/Brown University. She is interested in body image and eating disorders and completed this research during her undergraduate studies at the College of the Holy Cross. Alison Bryant Ludden is a developmental psychologist whose research focuses on social relationships and problem behaviors during adolescence, with a special interest in school as a developmental context. She is an assistant professor of psychology at the College of the Holy Cross. Megan M. Lally is currently a graduate student in psychology at Pepperdine University. She completed this research during her undergraduate studies at the College of the Holy Cross.     

组织细胞DNA含量变化与死亡时间的相关性研究

目的研究人死后各器官组织细胞DNA降解变化规律,探讨其在推断死亡时间方面的应用价值,为推断死亡时间提供科学依据。方法已知死亡时间人尸体的心、肝、脾、肾,按死后6,12,24和48h四个时间段取材,制成石蜡切片,经Feulgen染色并图像分析;同时将各器官组织按不同时间段取材,制成单细胞悬液,应用流式细胞仪检测DNA含量。结果(1)人体各器官组织细胞经FCM检测,脾细胞核DNA随死亡时间延长呈现较好的下降梯度,而心、肝、肾,则由于自溶较快,死后6h细胞核DNA含量已很低,其变化情况与死亡时间的相关性不佳;(2)各器官组织细胞核DNA染色强度指数均随死亡时间的延长而下降。结论(1)机体死亡后,各器官组织细胞核DNA含量随死亡时间延长逐渐减少,具有一定的变化规律,其中以脾细胞核DNA含量的变化趋势与死亡时间最具相关性,肝、肾次之,而心最差;(2)方法学分析,图像分析技术(IAT)与流式细胞术(FCM)两种检测方法在研究组织细胞DNA含量变化方面,各有利弊,可互补不足。