Do instant messaging interruptions help or hinder knowledge workers’ task performance?     

Gary Mansi  Yair Levy 《International Journal of Information Management》2013

The modern workplace environment is filled with interruptions due to the necessity of coworkers to communicate with each other. Studies have revealed that interruptions can impact task performance (TP). Communication interruptions are due, in part, to the unavoidable side-effect of using technology to facilitate these interactions. This experimental case study reports about an investigation we conducted on the role of instant messaging interruptions (IMI) and its implications on knowledge workers’ TP in a workplace environment. We have gathered data from knowledge workers engaged in an e-learning activity. The case study included a total of 60 experimental observations and analysis of the 120 records revealed that the time to complete a task (TPtct) for certain types of tasks, was significantly affected by IMI. This case study addressed gaps in IM interruption research and practical knowledge about the role of instant messages in the organization. Previous research has been conducted in a laboratory environment with interruptions generated by means other than actual IM. This case study used IMI with participants working in their normal workplace. Findings were used to provide a set of lessons learned recommendations for managers when it comes to the use of IM in the workplace.  相似文献   

任务紧迫性下个体情感网络特征、情绪劳动及创新行为的关系研究   总被引：1，自引：0，他引：1  

张敏 《中国科技论坛》2013,(8):75-82

借助情景实验,对任务紧迫性下个体情感网络特征、情绪劳动和个体创新行为之间的作用机理展开研究。结果表明,情感网络中心性在浅层劳动与个体创新行为的关系中起着倒U型调节作用,情感网络中心性在深层劳动与个体创新行为之间起到正向的调节作用。对情绪劳动的合理引导以及对情感网络的有效控制能够充分运用情绪资源的资本优势,促进个体实施创新行为。  相似文献   

建构主义教学理论在远程教学中的应用   总被引：1，自引：0，他引：1  

贾小林  刘志勤 《现代远程教育研究》2001,(3):35-39

建构主义学习理论强调以学生为中心，认为学生是认知的主体，是知识意义的主动建构，而教师只起辅助和促进作用。章对该理论的原理、方法和实施过程进行了论述，并结合一些实例，对教学的诸多方面，如课程的设计、授课内容的安排、问题的引入、结论的产生、效果的考核等做了有益的探索与研究。  相似文献   

The multimedia case as a tool for professional development: an analysis of online and face-to-face interaction among mathematics pre-service teachers, in-service teachers, mathematicians, and mathematics teacher educators   总被引：2，自引：0，他引：2  

Rebecca McGraw  Kathleen Lynch  Yusuf Koc  Ayfer Budak  Catherine A. Brown 《Journal of Mathematics Teacher Education》2007,10(2):95-121

In this study, we consider the potential of multimedia cases as tools for teacher professional development. Specifically, we examined online and face-to-face discussions that occurred within groups composed of pre-service mathematics teachers, in-service mathematics teachers, mathematicians, and mathematics teacher educators. Discussions within these heterogeneous groups tended to focus on issues of classroom implementation of the tasks shown in the multimedia case. Secondary foci of discussion included task characteristics and appropriateness of tasks for engaging students in thinking about mathematical concepts and processes. Analysis of contributions to discussions across group member type revealed differences that suggest that the variety of backgrounds and experiences of group members can blend in ways that support rich and critical discussions of mathematics, teaching, and learning.  相似文献   

Engaging ADHD students in tasks with hand gestures: a pedagogical possibility for teachers     

Xiao‐lei Wang  Philippe Eberhard 《Educational studies》2004,30(3):217-229

This study examines the effects of teachers' speech and hand gestures on the task performances of students with Attention‐Deficit/Hyperactivity Disorder (ADHD). Forty‐five 7½‐year‐old students clinically diagnosed with ADHD participated in the study. The students were asked to solve three sets of puzzles. The teachers supported the students in the tasks by using three different scaffolding modalities: speech‐only, gesture‐only and speech in conjunction with gestures. The results indicate that when the teachers used the scaffolding that contained gesture components (either speech scaffolding in conjunction with gesture scaffolding or gesture‐only scaffolding), the ADHD students were more responsive, focused longer on the tasks and were more successful in completing the tasks. Moreover, teachers' representational and deictic gestures were found to be the most effective gestures in scaffolding. This study suggests that when teachers' hand gestures are used together with speech, they are a powerful pedagogical means to engage ADHD children in tasks.  相似文献   

FRAD与中文名称规范控制之研究     

朱青青  孙凤玲 《国家图书馆学刊》2012,21(2):19-22

通过对FRAD概念模型的研究,结合中文名称规范控制实践中的问题,分析了FRAD概念模型中,实体定义、实体属性、实体关系、用户任务四个方面带给实践工作的一些启示,希望通过对这些具体问题的解决,能够进一步推动规范控制工作的开展,并促进FRAD在规范控制实践中的全面应用。  相似文献   

Professional skills development in a resource-poor setting: the case of pharmacy in Malawi     

Zoe Lim  C. Anderson  S. McGrath 《International Journal of Educational Development》2012

The dominance of the human capital approach in vocational skills development has been increasingly questioned for being de-humanised and de-contextualised. Contrary to this trend, the discourse in health professional skills development has shown increasing enthusiasm for consolidating this existing paradigm. To debate whether professional skills development should indeed be insulated from such scepticism, this paper examines one strategy adopted by the health professions. Called ‘task shifting’, this strategy involves re-delegating professional tasks to nonprofessional cadres according to a skills-based toolkit. Challenging the context-free approach to using this toolkit, this paper presents ethnographic evidence derived from a case study of pharmacy workforce issues in Malawi. It was found that task shifting was inhibited by a perception barrier about the moral and intellectual superiority of the pharmacists. Pharmacy technicians were judged to be unfit for a professional task because of a perceived lack of professional status, power and ethics. On tracing the origin of the inherent professional prowess assigned to the pharmacists, it was found that professionalism was an ideology borrowed from external sources, inter alia, colonial legacies and global health governance. This study exposes our hidden assumption about an axiomatic transferability of Anglo-American skills development models to a postcolonial, aid-dependent context. This paper therefore suggests redefining this toolkit by bridging health research into dialogue with non-health disciplinary concerns such as postcolonialism and aid-dependence. In conclusion, it argues that professional skills development is context-laden; and in need of a human-centred approach that involves true indigenous participation–challenges not unlike those faced by the vocational skills discourse.  相似文献   

基于TTF模型的网络信息资源利用效率研究   总被引：3，自引：0，他引：3  

董珏 《图书情报工作》2008,52(4):42-42

本文从国内的网络信息资源利用效率研究现状入手,对TTF模型进行拓展分析,将其作为网络信息资源利用效率的研究框架。阐述了模型中各个因素的意义及其包含的测评指标,揭示了各因素间的相关联系,为提高网络信息资的利用效率源提供建议。  相似文献   

基于多任务版本的实时系统调度算法     

赵丽萍  叶云青 《科技广场》2009,(5):35-36

本文介绍了多任务版本的实时系统调度算法.该算法能够满足实时系统中的关键性任务在最坏情况下运行时,仍可满足截止时闻的要求.通过为实时系统中的关键性任务设置两个任务版本,即主态和从态版本.主态任务版本具有较好的质量,从态任务版本只提供最基本的功能,运行时间较短.在最坏情况下避免调度主态任务版本,来满足实时调度的实时性要求.  相似文献   

配变数据采集系统主站数据采集任务管理及应用     

郑昕 《科技成果管理与研究》2008,(2):38-41

配变数据采集系统采集的数据种类多,各种数据的重要性、实时性、采集频度各不相同,文章介绍了一个在一定程度上通用的、灵活的任务调度管理设计方案并介绍这种方案在实际工程应用中的应用。  相似文献