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1.
国内开放存取资源在线集成服务理论进展   总被引:1,自引:0,他引:1  
邓君  毕强  宋文凤 《情报科学》2012,(7):1103-1108
从开放存取资源内涵界定、特点、分类与分布,开放存取资源现有整合集成服务平台比较,开放存取资源整合集成模式分析,开放存取资源集成服务平台架构,开放存取资源元数据管理,开放存取资源信息组织,开放存取资源在线发现服务以及开放存取资源在线集成服务存在问题这几个方面对国内开放存取资源在线集成服务理论研究进行了梳理,并基于此对国内开放存取资源在线集成服务研究特点进行了归纳分析,提出未来开放存取资源在线集成服务研究趋势-基于领域本体的开放存取资源在线集成门户研究  相似文献   

2.
文章以中国期刊全文数据库(CNKI)为数据源,以发表在CSSCI和核心期刊的2004-2013年有关开放存取的507篇文献为研究对象,对其进行年代分析,研究发现:2004-2008年开放存取研究呈现迅猛增长趋势,2009-2013年开放存取的研究趋势平稳,因此文章将开放存取的发展分为2个阶段,即开放存取研究的第一个阶段(2004-2008年)、开放存取研究的第二个阶段(2009-2013年)。利用关键词共现分析方法分析我国开放存取在每个阶段的研究热点,并采用社会网络分析方法分析开放存取文献的高产作者,以透析国内开放存取领域的研究热点和作者合作团体,从多方面揭示国内开放存取的发展现状和研究趋势。  相似文献   

3.
开放存取国内外研究现状分析   总被引:2,自引:0,他引:2  
文章详细阐述了开放存取国内外研究现状,分析了国内开放存取研究中存在的问题.  相似文献   

4.
在CNKI数据库中获取我国有关开放存取的论文,利用知识图谱工具对其进行分析处理,以可视化形式展示我国开放存取研究主题及其之间的联系,发现国内开放存取研究重点领域主要集中在数字图书馆、机构知识库、开放存取期刊、OAI、学术交流等。  相似文献   

5.
国内外开放存取实践现状分析   总被引:1,自引:0,他引:1  
通过对国内和国外开放存取实践的比较分析,找出国内开放存取存在的主要问题,并对开放存取的发展障碍进行了探究。  相似文献   

6.
国内外开放存取期刊研究进展综述与发展动态分析   总被引:1,自引:1,他引:0  
随着开放存取(Open Access,OA)运动的蓬勃发展,全球开放存取期刊发展迅猛,数量和质量均稳步上升,产生了显著的影响和效益。文章综述了近年国内外开放存取期刊的研究进展,分析了最新发展动态。对国外开放存取期刊的研究进展与动态的综述主要包括以下诸方面:期刊危机与开放存取的缘起,开放存取宣言、概念与实现途径,开放存取期刊的发展与商业模式,开放存取期刊的影响,支持开放存取的国家战略和机构政策等。由于国内开放存取期刊的研究和发展还处在起步阶段,主要从文献、学术会议及活动、OA期刊和OA仓储等方面进行综述。最后,提出支持中国开放存取发展的重点和对策建议。  相似文献   

7.
基于AHP方法的国内外开放存取系统评价研究   总被引:1,自引:0,他引:1  
陈云鹏 《现代情报》2009,29(4):34-36
文章针对开放存取系统服务质量评价的复杂性、模糊性特点,采用AHP分析法,构建其评价模型,对国内开放存取系统的服务质量的综合性评价进行研究。  相似文献   

8.
国内外OA资源的研究进展及发展对策   总被引:1,自引:0,他引:1  
张秋慧 《现代情报》2007,27(11):48-50
本文在简要介绍国外开放存取蓬勃发展的基础上,重点介绍了国内开放存取的发展现状,分析了其存在的问题及不足,并对开放存取在实践中提出了对策和建议。  相似文献   

9.
了解和研究了开放存取期刊发展的背景,对国内知名高校图书馆开放存取期刊建设现状进行了调研和分析,并对其中所出现的一些问题进行了总结研究,以期为更好地发展此项工作提供一些帮助。  相似文献   

10.
阐述国内图书馆对开放存取资源的开发利用现状,分析开放存取环境下国内图书馆面临的主要问题,包括认可度问题、开发利用问题、机构库建设问题和知识产权问题等。  相似文献   

11.
This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors.  相似文献   

12.
Ajoint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology and his co-workers from Norway, US and Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells, suggesting that China's projected climate warming could decrease the pest's numbers. The study was published in Proceedings of theNational Academy of Sciences on 17 September, 2007.  相似文献   

13.
A computer-mediated group is a complex entity whose members exchange many types of information via multiple means of communication in pursuit of goals specific to their environment. Over time, they coordinate technical features of media with locally enacted use to achieve a viable working arrangement. To explore this complex interaction, a case study is presented of the social networks of interactions and media use among members of a class of computer-supported distance learners. Results show how group structures associated with project teams dominated who communicated with whom, about what, and via which media over the term, and how media came to occupy their own communication niches: Webboard for diffuse class-wide communication; Internet Relay Chat more to named others but still for general communication across the class; and e-mail primarily for intrateam communication. Face-to-face interaction, occurring only during a short on-campus session, appears to have had a catalytic effect on social and emotional exchanges. Results suggest the need to structure exchanges to balance class-wide sharing of ideas with subgroup interactions that facilitate project completion, and to provide media that support these two modes of interaction.  相似文献   

14.
Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies.  相似文献   

15.
Aresearch group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol--a chemical found in the skins of red grapes and in red wine--can improve the sensitivity of mice to the hormone insulin, according to a report in the October,2007 issue of Cell Metabolism. As insulin resistance is often characterized as the most critical factor contributing to the development of Type 2 diabetes, the findings“provide a potential new therapeutic approach for preventing or treating” both conditions, the researchers said.  相似文献   

16.
The increasing prospects of digital piracy has prompted the perceived need by electronic publishers to adopt technical systems of protection, and governments to reform their copyright laws. This article is a preliminary study of the management of intellectual property by electronic publishers, defined as those involved in the production of online databases, and CD-ROMs. It focuses on three main issues: (1) how electronic publishers view the increasing threat of piracy; (2) the methods of protection employed to protect intellectual property in digital format; and (3) the importance of technological protection of intellectual property in electronic publications. The analysis is based on a sample of 23 UK electronic publishers. The interviews revealed an interesting assortment of protection methods and did not show that technological protection was a preferred way. Instead, the means of protection, in addition to copyright law, comprised niche markets, pricing, trust, bad publicity, and nontechnical and technical means.  相似文献   

17.
Long-standing conflict between domain name registrants and trademark holders prompted the Internet Corporation for Assigned Names and Numbers (ICANN) to create a global, mandatory arbitration procedure known as the Uniform Dispute Resolution Policy (UDRP). The UDRP has been used in 2166 cases involving 3938 domain names as of 1 November 2000. The policy gives the initiator of a complaint, generally a trademark holder, the right to choose which ICANN-accredited dispute resolution service provider (RSP) will handle the case. During the preparation of the UDRP,some feared that complainant selection would lead to "forum shopping" that might bias the results. This article performs a statistical assessment of the forum-shopping thesis and finds support for it. There are statistically significant differences in the various RSPs' propensity to take away names from defendants; there are also major differences in the number of cases brought to each RSP. RSPs who take away names have the larger share of cases. The study examines other variables that might explain differences in market share, such as price, the plaintiff's nationality, or the time taken to decide a case. It finds that nationality and time also are correlated with market share. The study concludes that shopping for a favorable outcome is an important factor in the UDRP.  相似文献   

18.
Prof. Raymond C.K. Chen, a neuropsychologist with the CAS Institute of Psychology, has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology.  相似文献   

19.
Active biological molecules and functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery, disease diagnosis and therapy, and new nanodevice construction.  相似文献   

20.
<正>In Xishuangbanna,one of China’s most biodiverse regions,landscape has changed dramatically during the past three decades due to the conversion of tropical rainforest to rubber plantations.In steep areas,terraces are often constructed before planting rubber trees,which causes two important changes in the soil:the destabilization of soil in the bench terraces and the increased vulnerability of unvegetated riser faces to erosion.Few studies have documented the nature and intensity of erosion on bench terraces.Prof.LIU Wenjie and his colleagues from the Xishuangbanna Tropical Botanical Garden(XTBG)conducted a study in Menglun County(21°5′39″N,101°15′55″E),Xishuangbanna to evaluate the influence  相似文献   

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