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讨论洛特卡定定律传统分析方法的缺陷,在此基础上提出一个可能的修正式,并将实际统计数据代入进行计算,分析、结果比较令人满意。     

基于TAM/TTF整合的网络信息资源利用效率模型与指标框架研究

在网络信息资源评价研究日趋成熟的基础上,学术界已逐步意识到如何提高网络信息资源利用效率应是该领域研究中更为关键的问题,它是网络信息资源评价研究的延伸与升华.本文首先对网络信息资源利用效率研究的内涵进行了分析,并以技术采纳模型和任务-技术适配为理论框架,探讨了网络信息资源利用效率研究所应考虑的相关重要因素.在此基础上提出了一个基础性整合理论模型,用以描述影响网络信息资源利用效率各因素之间的总体逻辑结构,建立了研究假设,进行了测度指标体系的设计,初步探讨了模型后续实证研究的框架,为进一步深入研究创造了前提.     

From abbey to archive: managing texts and records in early modern England

This article investigates the long-term transformations in England’s documentary storage regime wrought by the Reformation. Henry VIII’s Dissolution of the Monasteries famously resulted in the dispersal and destruction of many medieval texts and records, but he and his successors sponsored efforts to retrieve lost materials, which they then used in the formation of ecclesiastical policy. Elizabethan counselors expanded the scope of this project, applying their expertise in gathering records to secular issues and assiduously preserving their own documents. During James I’s reign, the Earl of Salisbury’s patronage gave new authority to the State Paper Office, encouraging the consolidation of a centralizing archive that integrated earlier methods of collection, preservation, and indexing in its operation and construction. The article thus offers an analytic trajectory tying the practices of Reformation to the development of expanding national archives in the seventeenth century.     

以UMLS语义命题为基础的医学信息资源聚合

UMLS语义命题是用三元组表示的最小语义化知识单位,其主语和宾语都是UMLS超级叙词表中的概念,谓词是UMLS语义网络中的语义关系。UMLS语义命题的抽取过程涉及浅层句法分析、概念映射、谓词识别与语义命题生成等环节。两种以UMLS语义命题为基础的医学信息资源聚合方法——用知识单元作为资源单位的聚合方法和用文档关联数据作为资源单位的聚合方法,其聚合结果分别是知识网络和文档网络。     

数字时代的情报技术

本文在分析情报技术内涵的基础上,提出了一种结合情报技术层次、情报工作流程和情报技术特性三个分类标准的情报技术体系,重点探讨了集成化、智能化和人性化等三个热点领域中的相关情报技术.     

课程视角:贫困农村地区初中学生辍学原因分析——一所农村初级中学的个案研究

农村初中学生辍学率居高不下,一直是"普九"顺利推进的瓶颈,这在贫困农村地区显得尤为突出.以往的相关研究,大多将原因归结为经济贫困.     

剖析世界教育发展变化 刻绘世界教育雄伟画卷——为《世界教育大系》问世而作

本文对《世界教育大系》丛书作了评介 ,指出其主要特点     

Building world-class research university: The Brain Korea 21 project

This study evaluated the effects of South Korea’s Brain Korea 21 (BK 21) project, a special research funding program designed to build world-class research university. The effects were measured by examining the frequency of article publications in SCI journals during the 1995–2005 period. The results of the analysis indicated that the growth of research publications from Korean research universities was increased significantly following the implementation of the BK 21 project in 1999. In addition, during the period under study, four research universities (Yonsei, Korea, Sungkyunkwan, and Hanyang) were newly emerged. However, the growth rate of research publications was not different from that of the US and Japan, and even less than that of China. Thus, although the BK 21 project contributed to the growth of research publications of Korean universities, the project did not lessen the gap between Korea universities and world-class research universities in the US or Japan in number of publications.     

Exploring How Second Grade Elementary Teachers Translate Their Nature of Science Views into Classroom Practice After a Graduate Level Nature of Science Course

The main purpose of this study was to explore the factors mediating the translation of second grade teachers’ nature of science (NOS) views into classroom practice after completing a graduate level NOS course. Four second grade in-service elementary teachers comprised the sample of this study. Data were collected from several sources during the course of this study. The primary data sources were (a) assessment of the elementary teachers’ NOS views before and after the graduate level NOS course using the Views of Nature of Science Questionnaire Version B (VNOS-B) (Lederman et al., 2002) coupled with interviews, and (b) a classroom observation and videotaped recording of the elementary teachers’ best NOS lessons coupled with interview. We identified three distinct but related factors that mediated the translation of NOS views into classroom practice: the teachers’ perspectives about the developmental appropriateness of the NOS aspect, the teachers’ selection of target NOS aspects, and the relative importance placed by teachers on each NOS aspect.     

大连经济形象塑造的现状及策略研究——以大连本地大众传媒为例

塑造良好的大连城市经济形象有利于提升城市知名度,改善和扩大城市间合作、促进城市经济、社会和生态的协调发展。以纸质媒体、广播电视、网络为代表的大众传媒是塑造城市经济形象的主要渠道。大连本地大众传媒在对大连经济形象塑造上功不可没,但也存在一系列问题。拓展视野、探寻新视角、换位思考、打民生牌、彰显城市精神必将是大众媒体塑造良好大连城市经济形象的成功路径。