数字参考咨询活动的信息经济学阐释   总被引：1，自引：0，他引：1  

李晓辉  孔庆杰 《图书馆学研究》2005,(5):45-47,97

数字参考咨询活动是近两年国内图书馆界交口相谈的热点问题，本文运用了信息经济学的信息不对称、逆向选择、道德风险、信息搜寻、外部效应等理论对DRS活动从新的视角进行了分析和诠释，提出了相应的问题和对策。  相似文献   

试论网络实时参考咨询服务－兼述NSTL实时参考咨询系统的建设与服务   总被引：6，自引：0，他引：6  

顾德南  孟连生  蔡志勇  吕世炅 《图书情报工作》2005,49(7):97-100,142

介绍国内外网上实时咨询服务的发展情况，探讨网上实时咨询系统的服务功能和实时咨询员的素质要求；概述NSTL 开展网上实时咨询服务的指导思想和服务效果，对租用现成系统(如美国国会图书馆与OCLC合作开发的QuestionPoint系统)与自行开发系统的优缺点进行比较。  相似文献   

虚拟社区知识共享意愿与行为的影响因素及其调节变量:元分析研究     

曹树金  王志红 《图书情报工作》2018,62(8):74-83

[目的/意义] 针对已有虚拟社区知识共享意愿与行为影响因素实证研究结果之间的不一致问题,对该领域相关实证研究加以梳理和再分析。[方法/过程] 利用元分析方法,通过系统收集和虚拟社区知识共享意愿与行为相关的实证研究文献,梳理和识别影响知识共享意愿与行为的关键因素,并通过异质性检验和分组分析,探索不同研究之间存在不一致性的原因,从而检验调节变量的影响。[结果/结论] 研究发现,对知识共享意愿与行为具有显著正向影响的因素分别有10个、14个,其中利他主义和知识共享态度对知识共享意愿的影响最大,结果期望、共同语言、主观规范和身份认同是影响知识共享行为最显著的变量。同时,研究识别了社区类型和研究情境是不同研究异质性的部分来源,具有一定的调节效应。通过梳理和识别知识共享意愿与行为的影响因素和调节因素,可为虚拟社区管理者提供参考,为该领域后续研究提供更好的理论基础。  相似文献   

From Archive,to Access,to Experience––Historical Documents as a Basis for Immersive Experiences     

Jiawei Huang  Mahda M. Bagher  Heather Dohn Ross  Nathan Piekielek  Jan Oliver Wallgrün  Jiayan Zhao 《Journal of Map & Geography Libraries》2018,14(1):40-63

Libraries have been the key to preserving culture and historic legacy for centuries. One such treasure cataloged in The Pennsylvania State University (Penn State) Libraries is a collection of over 33,000 Sanborn? Fire Insurance Maps. Originally kept safe in metal drawers, the library has embarked on a journey to digitize this abundance of information, combine it with other media such as photographs, and make it accessible through a web interface. Inspired by these efforts, we accessed this information and took it to the next level. Using state of the art 3D modeling and immersive technologies, we created a historic 3D model and immersive experiences of Penn State, exemplarily for the 1922 campus. The resulting experiences can be accessed through the web but also through head mounted displays (HMDs) and mobile phones in combination with VR viewers such as the Google Cardboard. Additionally, they can be used anywhere in the world or on the campus itself as a way to enable remote and in situ experiences and learning. Immersive experiences let us connect to the past, the present and the future, and as such offer value to digital cultural heritage efforts.  相似文献   

Two Thousand Students,One Librarian: Balancing Depth and Breadth of Library Instruction for Online Graduate Students     

Lindley Homol 《Journal of Library & Information Services in Distance Learning》2018,12(3-4):250-258

Many librarians struggle with how to balance scalable instructional offerings with more personalized instruction for online students—scale tends to come at the cost of personalization and vice versa. This paper will discuss three methods for connecting with online students that range from one-to-one personalization to widely scalable instruction: individual consultations, scaffolded instructional webinars, and asynchronous video tutorials. The student engagement with each type of instruction will be discussed, with ideas for future directions provided.  相似文献   

Mixed Reality Lab at Mississippi State University Libraries     

Derek H. Marshall  Joy DuBose  Pattye Archer 《Public Services Quarterly》2019,15(1):51-58

Virtual and Augmented Realities are advancing technologies that are becoming more popular in gaming and programming communities. However, virtual reality has been in development for decades. As libraries are often at the forefront of offering new and advancing technologies to their communities, virtual and augmented reality programs have become new additions to library services. While gaming is the prominent use of these technologies, virtual and augmented reality affords many educational opportunities. Mississippi State University Libraries have recently added a virtual/augmented reality lab as part of its library program.  相似文献   

Virtual Microscopy as a Learning Tool in Brazilian Medical Education     

Fernanda Somera dos Santos  Mariana Kiomy Osako  Gleici da Silva Castro Perdoná  Márcia Gaião Alves  Katiuchia Uzzun Sales 《Anatomical sciences education》2021,14(4):408-416

Virtual microscopy (VM) is a widely used teaching method in Medical Education in many developed countries. In Brazil, however, this is not the case for most medical schools, considering Brazilian social inequality and uneven access to technology. Recently, the Covid-19 pandemic has also challenged Universities to seek and make a transition toward more effective methods of full-time online education. Thus, the main goal of this work was to verify student's perception and academic performance, assessed upon VM implementation in a Brazilian Medical School. Ribeirao Preto Medical School students answered a 26-question survey with regards to optical microscopy (OM) and VM. Academic performance was compared between participants that were (year of 2019) or were not (year of 2015) exposed to VM. Taken the results together, subjective impressions such as handling, suitability, learning effectiveness, and pleasure using the tools, have shown a higher score for virtual microscopy (median = 29), when compared to optical microscopy (median = 24) with a P-value < 0.001 by Wilcoxon rank test, upon measurement using an ordinal scale. Regarding academic performance, no statistically significant differences were found between groups (P-value = 0.38, Cohen's d = 0.19). Therefore, VM proved to be adequate to the Brazilian medical education in light of Brazilian social contexts and Covid-19 pandemic.  相似文献   

Multisim软件电路设计与仿真分析   总被引：1，自引：0，他引：1  

唐益 《乐山师范学院学报》2002,17(4):68-71

本介绍了一个优秀的电路设计与仿真分析软件Multisim2001,以及Multisim的组成，基本功能，特点和仿真分析原理－结合电子电路实例叙述设计，仿真与分析的具体运用。  相似文献   

走出民主观念的五大误区     

杨金刚 《乌鲁木齐职业大学学报》2004,13(3):23-25,35

对民主观念的理解我们要走出以下五大误区:民主不是“为民求主”、“为民作主”,而是人民作主;民主不是多数压制少数,而是多数尊重和保护少数;民主不是否定个人,而是弘扬个人;民主不是只讲权利,而是也讲义务;民主不是追求最优的求全机制,而是保证满意的纠错机制。  相似文献   

虚拟现实系统中人机交互感官机理研究     

阳西述  陈娟 《娄底师专学报》2006,(3):71-72

探讨人机交互机理中感知系统模型和行为系统模型的基本原理与特点，总结出深入研究人机交互机理是实现虚拟现实人机交互的基础。同时指出人机交互感官机理研究有待进一步加强的方面。  相似文献