现场分析处理技术的研究与思考

随着科技的发展，三维信息、三维虚拟现实动画已经越来越多的出现在人们的视野中。国内一些公安机关已经将三维虚拟技术应用到犯罪现场数据采集中，为了减少三维采集数据处理的时间，提高应用数据的效率。本文将研究方向定位在研发一个集一维信息、二维信息、三维信息、漫游系统、三维仿真动画等功能于一身的三维制作平台，并探讨其在案件侦查中的运用。     

Anthropological Measurement of the Juvenile Clavicle Using Multi‐Detector Computed Tomography—Affirming Reliability

Currently, there is no standardized protocol for multi‐detector computed tomography (MDCT) measurement of juvenile remains. Using 33 juvenile clavicles, this paper investigates a protocol to allow MDCT measurements, comparable or supplemental with traditional osteometric measurements, to be acquired for application to previously published algorithms. The results illustrate that there is no significant difference between MDCT measurements and those taken by direct osteometric methods. By presenting such a protocol, this paper takes the first steps toward validation of the process of conversion from measurement of dry juvenile bone to MDCT compatibility and allows the forensic world to take a step forward in standardizing the way MDCT is used for forensic practice. This paper assesses the limitations and potential applications of this virtual approach and offers some suggestions for where further work might progress the conversion of these new approaches into legally admissible anthropological techniques of age estimation.     

Remembering remotely: would video-mediation impair witnesses' memory reports?

Witnesses often experience lengthy delays prior to being interviewed, during which their memories inevitably decay. Video-communication technology – favored by intergovernmental organizations for playing larger roles in judicial processes – might circumvent some of the resourcing problems that can exacerbate such delays. However, whereas video-mediation might facilitate expeditious interviewing, it might also harm rapport-building, make witnesses uncomfortable, and thereby undermine the quality and detail of their reports. Participants viewed a crime film and were interviewed either one day later via video-link, one day later face-to-face, or 1–2 weeks later face-to-face. Video-mediation neither influenced the detail or the accuracy of participants' reports, nor their ratings of the quality of the interviews. However, participants who underwent video-mediated interviews after a short delay gave more accurate, detailed reports than participants who waited longer to be interviewed face-to-face. This study provides initial empirical evidence that video-mediated communication (VMC) could facilitate the expeditious conduct of high-quality investigative interviews.     

Comparative analysis of true or false statements with the source monitoring model and the cognitive interview: special features of the false accusation of innocent people

Abstract

We describe two experiments designed to verify whether the source monitoring (SM) model categories and the cognitive interview (CI) contribute to distinguishing true from false statements. We used a 2 Type of Interview (Structured/Cognitive) × 2 Statement Condition (True/False) design with 18 interviewers in a sample group of 240 gender-matched university students being interviewed about a film fragment. In Experiment 1, participants who lied exculpated the protagonist from rape, whereas in Experiment 2 their lies were aimed at accusing an innocent person. As dependent variables we used criteria from the SM: details, supporting memories, thoughts and feelings and cognitive operations. The results suggest that the statements of honest participants interviewed using the CI provided more overall information than those obtained under any other condition. When a lie is aimed at exculpating someone from criminal behaviour, statements involve more cognitive operations and less sensory, temporal and contextual information, but only when the structured interview (SI) is used. When the lie is aimed at falsely accusing someone, the SI and the CI produce similar results. We discuss the forensic importance of these findings.     

Towards African Communication Science curricula: Challenges for higher education

Abstract

This article explores the integration of Africanism in curriculum content of Communication as a science on the level of higher education. Africanism is not treated as something to be added to curriculum content, but is regarded as an integral part of an institutional strategy of post-apartheid and post-merger transformation. This article is divided into two sections. The first focuses on strategic shifts that have to be considered when revisiting curricula content and the dilemma of linguistic pluralism. The second section deals with the operational processes that are necessary when revisiting curriculum content, by focusing specifically on the application of collaboration and assessment as mechanisms for planning and negotiating changes to curriculum content, plus the nature of key determinants of the interrelationships among academics, higher-education institutions and adult learners. The article concludes with critical questions which Communication curriculum designers and academics need to ask in their research and training endeavours to contribute to the national development goals and social reconstruction.     

A critical-historical genre analysis of reality television

Abstract

The objective of this article is to investigate the criticism that reality television defies precise definition because it shares generic conventions with genres such as game shows, talent shows, talk shows and documentaries. We started this investigation by using the historical genre approach to etermine the historical roots of reality television. The historical approach also enabled us to identify four genre conventions associated with reality television, that is, the focus on ordinary people, voyeurism, audience participation, and the attempt to simulate real life. These characteristics furthermore explain the popularity of this genre with the viewing audience. To make provision for one genre ‘borrowing’ from another, we suggested the use of the hybrid mix (or generic mix) model which enables researchers to identify the content (e.g. the narrative) of reality programmes as well as its unique, formalistic characteristics.     

Using online social networking for teaching and learning: Facebook use at the University of Cape Town

Abstract

Web-based learning has made learning content much more freely and instantaneously available to students who can download course notes and readings with a single mouse click. Facebook is one of many Web 2.0 tools – wikis, delicious, YouTube, podcasts – that are listed as having potential applications for teaching and learning. Moreover, it has been argued that the current generation of youth, often described as Net Geners or Digital Natives, may be resistant to traditional methods of teaching and learning. This article explores student use of Facebook at the University of Cape Town, as well as lecturer engagement with students via the new social media. Drawing on a virtual ethnography and qualitative interviews, this article shows that while there are potential positive benefits to using Facebook in teaching and learning, particularly for the development of educational micro-communities, certain challenges, including ICT literacy and uneven access, remain pertinent.     

Print journalism as political communication: The Iran hostage crisis 1

Studies of political communication and persuasion typically focus on deliberately persuasive communications of political actors. Contemporary rhetorical theories suggest the importance of rhetorical examinations of a range of communications not normally considered rhetorical/persuasive, including media news reports. Bormann's fantasy‐theme analysis is a rhetorical‐critical method that allows critics to discover the rhetorically created social realities of groups of people through detailed examination of their communication behavior. The method is particularly suited to discovering the motives of social actors who share social realities or “rhetorical visions.” Applied to U.S. print media coverage of the Iran hostage crisis, fantasy‐theme analysis reveals the motives that urged journalists to give the episode massive coverage, that urged Americans to become preoccupied with the episode, and that urged Americans to vote out an incumbent president. Thus, the study reveals the tremendous persuasive impact of “objective” materials like news coverage on electoral politics.     

The semiotics of religious space in Second Life®

Scholarly research on the religious dimension of Second Life® can be conducted with reference to several elements: ties between the religious dimension of Second Life and that of the “First Life” (an approach privileged by the sociology and the psychology of religion); the transcendent value inherent in the creation of an alternative reality (an approach favored by the philosophy of religion); the enunciation of a “virtual” religious dimension through the digital artifacts of Second Life (an approach promoted by aesthetics, phenomenology, and semiotics); and so forth. Adopting the point of view of cultural semiotics, the paper summarizes the results of a “virtual” ethno-semiotic participant observation conducted over six months in portions of the digital “metaverse” of Second Life where a religious dimension is predominant. The consequent analysis of digital places of worship singles out five main characteristics of their aesthetics, phenomenology, and semiotics: isolation, prototypicality, didacticism, anarchy, and parasitism.     

网络虚拟财产继承问题研究简

网络虚拟财产是一项新型财产权,这决定了其继承问题应纳入继承法规范,但其存在着与传统财产权继承不同的特殊问题。网络虚拟财产是基于网络服务商的网络服务而产生的,但用户购买或创造的网络虚拟财产具有独立的价值,属于用户所有,网络服务协议不能排除其合法继承。保护死者隐私最终是为了保护死者近亲属的权益,因此用户死亡后由近亲属继承其网络虚拟财产不会存在侵害死者隐私的问题。