正项级数敛散性判别法的综合探究

级数的中心问题是要判别其敛散性,在这方面已有许多丰富的研究成果。在已有结论的基础上归纳总结了正项级数敛散性判别法的技巧和方法,对有关判别法之间的强弱进行了归纳总结,并通过实例对正项级数敛散性判别进行梳理和强弱比较。     

AANA阵列加权和的完全收敛性

在适当的矩条件和权系数条件下,利用AANA序列的矩不等式和随机变量的截尾技术,讨论了AANA随机阵列加权和的完全收敛性,并给出了证明AANA序列加权和的完全收敛性和强收敛性的充分条件．     

模型论方法在高等代数学中的一个应用

模型论中的完全理论在代数学中有很广泛的应用,文章用完全理论证明域F上任意n维线性空间V均同构于F上n维数组行向量空间Fn,特别知,域F上两个有限维线性空间同构当且只当二者维数相等.     

图书档案数字化融合服务研究论纲

论述图书档案数字化融合服务提出的背景与意义,系统梳理国内外相关研究成果与实践,解析目前国内学者基于这一领域研究深度与维度的欠缺性,并在此基础上,阐述基于对文化资源有效保存与利用的共同愿景,从用户需求探索、融合模式构建、保障机制寻求等角度提出图书馆、档案馆数字化融合服务的理论研究框架,展望未来这一主题研究由宏观架构趋向微观求索的发展路径。     

图书档案数字化融合服务评价模型研究

图书档案数字化融合服务是在资源整合和网络技术的基础支撑下,以保障用户的无缝获取和知识参考为目标的新一代网络服务模式。从用户感知服务质量理论的视角提出了资源获取、资源整合、技术平台和知识参考4个维度,并在文献研究与专家咨询的基础上对4个维度及包含的20个要素进行系统论证。为使定性思辨得到定量验证,运用统计分析法从鉴别度、可靠性、有效性和拟合度方面对模型进行验证,结果表明模型可以有效适用于图书档案的数字化融合服务评价,为数字化融合服务发展和融合实践的测评诊断提供有益参考。     

PRACTICE REVIEW: MAINTAINING FREEDOM WITH RESPONSIBILITY

There are several fundamental reasons why the state should not involve itself in the regulation of the press. However, there are also more practical reasons why self-regulation can be a preferable alternative, benefiting journalists and the public alike. It is flexible, non-bureaucratic and highly effective at delivering practical solutions to problems. Ultimately, self-regulation can raise standards and provide effective redress to those who are wronged by the press. But it does so by working with journalists, not against them. What follows is an examination and analysis of the origins and practices of the press regulatory bodies of the United Kingdom and the Republic of Ireland, together with an exploration of current issues and solutions adopted, and the identification of future issues deriving from convergence, accountability and effectiveness.     

半正定系统广义非定常多分裂迭代算法

文章首先给出了广义非定常多分裂算法,并且证明了在一个简洁条件下广义多分裂算法一定半范数收敛,进一步可得到该算法商收敛,该结果是对Cao[2]中结论的推广。     

FROM THE SCREEN TO ME, 1984–2008

This paper explores Apple and Microsoft television commercials from the last 25 years and argues that they visualize three phases of the human–computer relationship through the changing positions of the computer and the human body. The three phases are: disembodied cyberspace, embodied hybridity and ubiquity. Ultimately, what becomes apparent is the extent to which these television commercials demonstrate what Henry Jenkins calls a ‘cultural convergence’ in relation to the human–computer relationship and why this convergence experienced a shift from phase one to phase two around the turn of the millennium. The paper ends by examining more recent Apple and Microsoft television commercials in order to explore the possibility of a new, third phase in the human–computer relationship.     

Evaluating Environmental Knowledge Dimension Convergence to Assess Educational Programme Effectiveness

One aim of environmental education is fostering sustainable environmental action. Some environmental behaviour models suggest that this can be accomplished in part by improving people's knowledge. Recent studies have identified a distinct, psychometrically supported environmental knowledge structure consisting of system, action-related and effectiveness knowledge. Besides system knowledge, which is most often the focus of such studies, incorporating the other knowledge dimensions into these dimensions was suggested to enhance effectiveness. Our study is among the first to implement these dimensions together in an educational campaign and to use these dimensions to evaluate the effectiveness of a programme on water issues. We designed a four-day environmental education programme on water issues for students at an educational field centre. We applied a newly developed multiple-choice instrument using a pre-, post-, retention test design. The knowledge scales were calibrated with the Rasch model. In addition to the commonly assessed individual change in knowledge level, we also measured the change in knowledge convergence, the extent to which the knowledge dimensions merge as a person's environmental knowledge increases, as an innovative indicator of educational success. Following programme participation, students significantly improved in terms of amount learned in each knowledge dimension and in terms of integration of the knowledge dimensions. The effectiveness knowledge shows the least gain, persistence and convergence, which we explain by considering the dependence of the knowledge dimensions on each other. Finally, we discuss emerging challenges for educational researchers and practical implications for environmental educators.     

民办高校趋同现象的驱力探析--基于新制度主义视角

我国民办高校趋同现象主要表现在组织行为和组织结构的趋同。基于新制度主义的强制机制、模仿机制、社会规范机制的作用,可以从理论上揭示民办高校趋同的深层驱力。在此基础上纾解民办高校趋同现象,还应在优化法律制度环境,制定区域发展规划,实施分类管理,增加公共财政投入,培育办学特色,提升办学水平等方面做出更多努力。