移动网络即时协作学习平台关键技术研究

移动学习平台是促进移动学习快速发展的重要因素,无线网络技术和移动通信技术及其相关移动终端设备的快速普及,使得基于有线网络和个人计算机的网络学习平台已不能满足当前学习者的实际需求.从无线移动网络环境下学习者的实际要求出发,研究具有移动Web即时通信、资源实时移动共享等功能的移动网络即时协作学习平台的体系机构和系统功能,探究实现该系统平台的关键技术,以便为移动学习者提供一种支持即时协作交流、实时共享资源与知识经验的新型移动网络即时协作学习平台.     

Effects of presentation modes on mobile-assisted vocabulary learning and cognitive load

Previous studies of multimedia presentations have determined the effects of the combination of text and pictures on vocabulary learning, but not those of the sound of new words. This study was intended to confirm those previous findings from the integration of mobile technologies and the approach of cognitive load. It adopted a within-subjects design and recruited 32 eighth graders in central Taiwan to participate in a vocabulary learning program on mobile phones. During the program the participants needed to learn four sets of target words in four different weeks. Each set was presented in one of the four modes: text mode, text-picture mode, text-sound mode, and text-picture-sound mode. Immediately after learning each set, all participants took a vocabulary test and completed a cognitive load questionnaire; and, two weeks later, they took the vocabulary test again. Their perceptions of the vocabulary learning program were also collected in a post-program questionnaire. The findings were that audio input helped our participants recall new words’ meanings after two weeks; and, it reduced their cognitive load of learning new words. Our participants also provided positive feedback on the mobile-assisted vocabulary learning program featuring multimedia presentations.     

A Technology-Based Peer Education Intervention: Results from a Sexual Health Textline Feasibility Study

Sexuality health education is moving beyond the classroom, with technology expanding youth access to sexual health information. While text message services are increasingly being used to provide information, a peer education approach has yet to be incorporated. Results from this feasibility study support a sexual health textline (IOTAS), incorporating teens asking and answering questions. Our findings suggest IOTAS fills a gap for sexual health information, and the technology-based approach offers peer educators an opportunity to expand their knowledge of healthy sexual behaviors and educate an extended peer network. Further work to refine IOTAS will enable dissemination of the intervention model.     

统一消息系统(UMS)的设计与实现

统一消息系统的研究在CTI理论领域和通信市场具有重要的意义，国际上发展得比较迅速，但是国内还几乎是一片空白。从统一消息系统（UMS）的概念入手，提出了统一消息系统的设计和实现方案，从系统组成，系统功能，功能模块和具体实现等几个方面作了详细论述。     

知识管理下企业信息服务的对策

通过分析企业信息化的现状及信息系统难管理的原因,提出了在及时响应客户需求、处理优先级、降低服务成本、形成可积累并可复用的经验方面的应对策略,从而改造和提升原有信息系统的能力,提升企业信息系统的效率,使企业信息服务的质量不断提升。     

SMS Text Reference Comes of Age: The My Info Quest Collaborative

The advent of the nationwide My Info Quest text message reference collaborative not only helped propel United States libraries' use of telephone text messaging to a new standing, it also demonstrated the effectiveness of a nationwide non-hierarchical librarian collective built on an organic foundation of radical trust. Much of the collaborative's development parallels similarly probing steps taken years earlier by instant messaging reference librarians, albeit with profound organizational differences. This article reports on important contrasts and commonalities with earlier services and describes some of the day-to-day workings of My Info Quest during its 2009–2010 pilot phase.     

Another Lane on the Information Highway? A Case Study of Experimenting with Text Message Reference

This article examines the process of researching, adapting, and implementing a text message reference service and the conclusions reached after nearly 10 months of continuous service. This experiment involved a single BlackBerry passed in a rotating schedule among librarians to gauge student interest in a text reference service. Although implementing this service allowed the library to be at the technological forefront, this is a service that would be better provided via a software interface. Furthermore, the text message reference service needed a stronger marketing campaign to make students aware of this option.     

RYT

Abstract

From pilot project to mainstream reference service, this article chronicles the HELIN consortium's history with commercial virtual reference (VR) software and details its decision to switch from a centralized service to individually supported instant messaging (IM) reference services across its institutions. The authors discuss the development and implementation of their virtual reference service with emphasis on assessing its success using both commercial VR software and freeware IM applications at its different member institutions. Lessons learned, the pros and cons of offering collaborative virtual reference, and the challenges of integrating emerging technologies into library services are addressed as librarians seek to develop best practices for offering reference service in an increasingly virtual world.     

Becoming Embedded: Incorporating Instant Messaging and the Ongoing Evolution of a Virtual Reference Service

The creation of an instant messaging (IM) service is described. The challenges encountered in developing, launching, and maintaining the project are examined and include technical support, archiving, balancing different formats, privacy, assessment, training, and the effectiveness of the IM channel. The process of choosing an aggregator and a widget and redesigning the online reference services portal is explored, and best practices that evolved are identified. Useful strategies and concerns that emerged are discussed. Factors contributing to an overall increase in use are outlined and include convenience, simplicity, and reliability.     

The effect of an MSN agent on learning community and achievement

The use of instant messaging to support e-learning will continue to gain importance because of its speed, effectiveness, and low cost. This study developed an MSN agent to mediate and facilitate students' learning in a Web-based course. The students' acceptance of the MSN agent and its effect on learning community identification and learning achievement were investigated using the technology acceptance model. Results indicated that the MSN agent proved easy to use, and that students recognized its benefits with regard to their learning. In more detail, students perceived that the MSN agent would be beneficial to learning community identification, but this perceived usefulness had less effect on their learning achievement. However, it was found that perceived system usage of the MSN agent was significantly related to learning achievement, which differed from the result of analyzing students' perceived usefulness of the agent. Rather than using a systematic recording log, the perceived system usage of the MSN agent was measured through questionnaires. Interview feedback revealed that effective learning was related to the learners' engagement in the MSN agent and not just from their perceived usefulness of it. Therefore, the MSN agent could have more potential to facilitate students' learning in an online environment if learning activities related to study are designed to promote students' engagement.