对38种图书情报类开放获取期刊资源及获取方式的分析研究

从开放获取与图书情报类期刊资源、图书情报类开放获取期刊资源名录、图书情报类开放获取期刊资源综合情况分析、图书情报类开放获取期刊资源的来源渠道和文献格式、图书情报类开放获取期刊资源的下载获取方式等多方面,对我国正在出版的38种图书情报类开放获取期刊资源及其利用方式进行了分析研究。     

Software and Scanner: A Comparison of Procedures in University of California,San Diego's Interlibrary Loan and Course Reserves Units

The Document Delivery Services/Interlibrary Loan Unit and the Course Reserves Unit at the University of California, San Diego's Access Services Department both utilize the Konica Minolta PS7000 book scanner to deliver requested documents and post electronic reserve items. Though the hardware is the same in both units, unique service goals and software—Ariel Interlibrary Loan Document Transmission Software for DDS/ILL and Adobe Photoshop for Course Reserves—result in different issues and challenges. This article discusses the shared practices of the Document Delivery Services/Interlibrary Loan and Course Reserves Units and how each unit utilizes the Konica Minolta PS7000 book scanner to offer better service for their patrons.     

Medical Education and Information Literacy in the Era of Open Access

The Open Access movement in scholarly communications poses new issues and concerns for medical education in general and information literacy education specifically. For medical educators, Open Access can affect the availability of new information, instructional materials, and scholarship in medical education. For students, Open Access materials continue to be available to them post-graduation, regardless of affiliation. Libraries and information literacy librarians are challenged in their responses to the Open Access publishing movement in how best to support Open Access endeavors within their own institutions, and how best to educate their user base about Open Access in general.     

The reSearcher Software Suite: A Case Study of Library Collaboration and Open Source Software Development

This article examines the importance of library collaboration as demonstrated by the development of reSearcher, an open source software project at the Simon Fraser University Library, in British Columbia, Canada. A brief history of the project is provided, as well as an overview of each of the project's components, which offer electronic resource management, link resolving, personal citation management, and federated searching capabilities. The importance of libraries working together to ensure the success of the project is discussed, as well as the benefits received by members of the international library community participating in this open source alternative.     

A systematic empirical comparison of different approaches for normalizing citation impact indicators

We address the question how citation-based bibliometric indicators can best be normalized to ensure fair comparisons between publications from different scientific fields and different years. In a systematic large-scale empirical analysis, we compare a traditional normalization approach based on a field classification system with three source normalization approaches. We pay special attention to the selection of the publications included in the analysis. Publications in national scientific journals, popular scientific magazines, and trade magazines are not included. Unlike earlier studies, we use algorithmically constructed classification systems to evaluate the different normalization approaches. Our analysis shows that a source normalization approach based on the recently introduced idea of fractional citation counting does not perform well. Two other source normalization approaches generally outperform the classification-system-based normalization approach that we study. Our analysis therefore offers considerable support for the use of source-normalized bibliometric indicators.     

无人值守参考咨询服务研究

基于咨询经验的网上代理型参考咨询服务系统是不需要咨询员的参与、操纵或干预的系统。系统具有启发式的引导,用户通过与系统的交互可以得到启发和帮助。该系统涉及了参考咨询服务的范式、参考咨询过程模型、信息搜索过程模型、用户精神模型、咨询问题的分类及参考咨询服务的目标层次模型等问题。图3。参考文献9。     

数字保存系统中的信息模型研究

在对OAIS的信息模型进行分析的基础上,研究了CEDARS,DSEP,DIAS等几个数字长期保存系统中信息模型的具体实现问题;认为在构建数字长期保存系统时,有若干问题需要关注。图2。参考文献15。     

网络环境下学术信息的开放存取

开放存取思想迎合了网络时代信息交流的特点,开创了一种新的、高效的交流模式。开放存取包含两层含义:一是指学术信息免费向公众开放;二是指学术信息的可获得性。网络环境下的学术信息开放存取服务有多种类型,如:在线文档发布、科学家与研究组内部的直接交流、通过电子邮件的自由辩论、搜索引擎的索引与检索服务、第三方集成检索服务等。图3。参考文献10。     

Longitudinal Dynamic Analyses of Depression and Academic Achievement in the Hawaiian High Schools Health Survey Using Contemporary Latent Variable Change Models

The scientific literature consistently supports a negative relationship between adolescent depression and educational achievement, but we are certainly less sure on the causal determinants for this robust association. In this article we present multivariate data from a longitudinal cohort-sequential study of high school students in Hawai‘i (following McArdle, 2008; McArdle, Johnson, Hishinuma, Miyamoto, & Andrade, 2001). We first describe the full set of data on academic achievements and self-reported depression. We then carry out and present a progression of analyses in an effort to determine the accuracy, size, and direction of the dynamic relationships among depression and academic achievement, including gender and ethnic group differences. We apply 3 recently available forms of longitudinal data analysis: (a) Dealing with incomplete data—We apply these methods to cohort-sequential data with relatively large blocks of data that are incomplete for a variety of reasons (Little & Rubin, 1987; McArdle & Hamagami, 1992). (b) Ordinal measurement models (Muthén & Muthén, 2006)—We use a variety of statistical and psychometric measurement models, including ordinal measurement models, to help clarify the strongest patterns of influence. (c) Dynamic structural equation models (DSEMs; McArdle, 2008). We found the DSEM approach taken here was viable for a large amount of data, the assumption of an invariant metric over time was reasonable for ordinal estimates, and there were very few group differences in dynamic systems. We conclude that our dynamic evidence suggests that depression affects academic achievement, and not the other way around. We further discuss the methodological implications of the study.     

Procoor: un sistema para estudiar la geometría espacial

Poder desarrollar programas educativos específicos que pretenden enseñar mejor determinados contenidos del curriculum, yendo más allá de las limitaciones del discurso oral o escrito lineales, es una de las grandes virtudes del ordenador. Se presenta aquí un programa experimental de geometría.