基于WEB课件的安全技术研究与实现

提出并实现了一个基于安全套接字层 (SSL)技术的安全Web课件系统。该系统可为Web客户机和服务器的应用层通信应用软件提供数据加密、信息完整性、实体鉴别和防抵赖等安全服务     

Media and Popular Culture Representations of LGBT Bullying

SUMMARY

This article critically reviews diverse representations of bullying of gay, lesbian, bisexual and transgender people in contemporary media: cinema, television, journals, Web sites, fiction, children's books, comics, music, advertising, and pornography.     

日本《低碳投资促进法》述评

日本参议院于5月18日通过了《低碳投资促进法》,该法是日本建设低碳社会的最新立法,规定了对从事适合能源环境的制品开发与制造的特定事业者提供筹资支持,需求开拓支援法人承保租赁合同等措施,对我国的相关立法有一定的借鉴意义。     

WTO框架下科学不确定性问题研究

WTO作为多边体制的支柱,不仅规定了货物、服务贸易,而且包括了动植物检验检疫、环境保护等涉及科学技术的领域,但WTO对这些领域的规定含混不清,导致各国对规则的解释往往采用了非统一的科学技术界定标准,这种技术标准成为贸易保护的正当性借口,在实践中许多国家以WTO之名行贸易保护之实。从某种意义上说,全球化肇始的标志是WTO体系,全球化的进一步发展则有赖于对WTO规则的进一步诠释,在环境保护、动植物检验检疫领域采取统一科学证据要件判定体系就成为了支撑WTO自由贸易精神的一个重要制度保障。     

Perceptions of efficacy in the use of contemporary film in social work education: An exploratory study

This article discusses the use of contemporary film in social work education, including the theoretical rationale for the inclusion of film from the perspective of narrative and adult learning theory as well as the application of the case method to the use of film. The student viewpoint and perspective is provided through the results of an exploratory research study with 109 Baccalaureate social work students who completed a survey questionnaire following a classroom activity involving a contemporary film. Analysis of the quantitative data and qualitative comments indicates that students believe that film is a beneficial adjunct to textbook and lecture content.     

环境与经济协调发展评价与对策研究——以苏南地区为例

本文以江苏省苏南地区17个样本城市为研究对象,构建了一套环境与经济协调发展的评价指标体系。并在因子分析基础上,测算了苏南地区城市环境与经济的协调度与协调发展度。最终依据上述两个综合评价指标,本文将这些城市分为环境与经济协调发展较好型、一般型和较差型三类,并提出了进一步发展的相关政策建议。     

WEB PAGES, AUTHORS AND AUDIENCES: The meaning of a mouse click

One popular framework for analysing web pages has been to think of them as identity performances on the part of the author. This framework opens up possibilities for analysis of the ways in which identity performances are composed. The personal web pages to which this perspective is most immediately applicable, are, however, now only a small proportion of the overall amount of information available on the World Wide Web. It would be possible, by extension, to analyse institutional web pages as performances of the institutional identity. It is the contention of this paper that to do so is to miss out on some important aspects of web page design: namely that the production of a web page involves understandings not only of the audience for the page but also of the capacities of the technology. In addition, web page production has to become a socially meaningful act for the individual web page developer and the institution concerned. It is, therefore, argued that the analysis of web pages can usefully learn from media studies and the sociology of technology in this respect. An interview-based study of the developers of web pages for the service departments of a UK university is described. The ideas of audience which the authors use are far from homogeneous: they include an institutional offline audience for the page, a pre-existing imagined audience, developers themselves as audience, and the technology of the browser as a stand-in audience. The audience and the capacities of the technology are developed in context through the practices of designers.     

基于滑动窗口的自适应网页预测模型

PPM模型广泛应用于Web预取技术,但大多数的PPM模型不具有自适应性,不能反映用户浏览模式的改变。通过对标准PPM模型的扩展,提出基于滑动窗口的自适应网页预测模型。该模型仅保留处于滑动窗口之内的最近访问序列,从而反映用户兴趣的变化,同时利用非压缩后缀树增量式添加新的用户请求和删除过时的浏览信息,以提高更新速度。实验表明,该模型能更准确地描述用户在Web上的浏览特征,在预取性能上明显地优于以往的模型。     

Web 2.O时代的客户参与管理

参与管理是一种传统的管理方法,但在Web时代却被赋予了新的内涵:客户参与管理.Web 2.0技术更为客户参与提供了便利的平台,为企业提高客户的满意度和忠诚度创造了良好的条件.为企业获利奠定了基础.本文在介绍传统参与管理理论和Web2.0特点的基础上,列举了Web2.O为企业带来的效益,分析了Web 2.O下客户参与管理的优势,为企业的经营运作提供借鉴.     

Who Lives Near Coke Plants and Oil Refineries? An Exploration of the Environmental Inequity Hypothesis

Facility-specific information on pollution was obtained for 36 coke plants and 46 oil refineries in the United States and matched with information on populations surrounding these 82 facilities. These data were analyzed to determine whether environmental inequities were present, whether they were more economic or racial in nature, and whether the racial composition of nearby communities has changed significantly since plants began operations.The Census tracts near coke plants have a disproportionate share of poor and nonwhite residents. Multivariate analyses suggest that existing inequities are primarily economic in nature. The findings for oil refineries are not strongly supportive of the environmental inequity hypothesis. Rank ordering of facilities by race, poverty, and pollution produces limited (although not consistent) evidence that the more risky facilities tend to be operating in communities with above-median proportions of nonwhite residents (near coke plants) and Hispanic residents (near oil refineries). Over time, the racial makeup of many communities near facilities has changed significantly, particularly in the case of coke plants sited in the early 1900s. Further risk-oriented studies of multiple manufacturing facilities in various industrial sectors of the economy are recommended.The authors are all affiliated with the Harvard Center for Risk Analysis