Why users keep answering questions in online question answering communities: A theoretical and empirical investigation

This study theorized and validated a model of knowledge sharing continuance in a special type of online community, the online question answering (Q&A) community, in which knowledge exchange is reflected mainly by asking and answering specific questions. We created a model that integrated knowledge sharing factors and knowledge self-efficacy into the expectation confirmation theory. The hypotheses derived from this model were empirically validated using an online survey conducted among users of a famous online Q&A community in China, “Yahoo! Answers China”. The results suggested that users’ intention to continue sharing knowledge (i.e., answering questions) was directly influenced by users’ ex-post feelings as consisting of two dimensions: satisfaction, and knowledge self-efficacy. Based on the obtained results, we also found that knowledge self-efficacy and confirmation mediated the relationship between benefits and satisfaction.     

敦煌写本曲子辞抄写年代三考

抄有《云谣集》的斯1441、伯2838以及保存了大量曲子辞的2607、伯3128是最重要的三种敦煌曲子辞文献,这三种曲子辞文献的抄写年代问题尚未最终解决。通过伯2838斋文中的“令公”一词结合斯1441中的相关信息,可以推知《云谣集》抄写于928年至935年间或稍晚。通过对斯2607两面文书正背面关系的考查,再结合该卷点检历中相关僧人的生平,可确定斯2607之曲子辞抄写于十世纪中叶左右。通过伯3128中三首《望江南》与伯4889定千诗相互关系的考查,可得知伯3128之曲子辞的抄写年代上限为944年。     

演示文稿制作与播放中的“微处理”技术

利用“画图”和Power Point软件自身功能对演示文稿作“微处理”。把多个对象组合成一个新对象,对截图进行修整,控制练习题答案隐藏与显示,作程序文本与幻灯片文本框文本对拷,以及合理设置幻灯片背景和字体字形。综合考虑多媒体系统、情境等其他因素,优化设置,操作便捷,将多媒体的性能发挥到极致。     

幼儿教师的素质、应对方式与幼儿问题行为的相关研究

目的筛查影响幼儿心理健康的因素,为幼儿教师完善其教育实践提供心理学依据。方法选取沧州第二幼儿园100名教师和230名幼儿进行问卷调查,用SPss12．0对调查结果进行统计分析。结论幼儿问题行为有显著的性别差异和年龄差异;教师素质中的情绪因子和应对方式中的解决问题方式与幼儿的问题行为存在显著的负相关。合理化方式与幼儿的问题行为存在显著的正相关。     

用PLD设计数显竟答器核心控制电路

介绍了PLD在数码显示竟答器中的应用，通过VHDL语言设计核心控制电路，并使用MAX＋PLUSII软件实现仿真编译，完成电路设计。     

The assessment and prevention of answer copying on undergraduate multiple-choice examinations

Multiple-choice examination answer copying was indexed by a comparison of the numbers of items answered incorrectly, and in the same way, as adjacent and distant classmates. In Experiment I, which involved a regular university examination, significant copying did occur, did not differ from front to rear of the lecture hall, and appeared primarily among individuals seated next to one another. Copying was not related to the order in which the examinations were returned. Number correct was related to turn-in order in a U-shaped fashion. No significant copying appeared in a second experiment, where test performance did not contribute to course grade.     

应用VFP 5.0数据库系统开发考试系统实例

本文结合实际探讨了计算机考试系统的开发.文章介绍了考试系统的一般流程结构,探讨了考试系统一些问题的解决算法,并讲述了如何在PVFP5.0中编程开发考试系统.     

国家级基础化学实验教学示范中心网站的开发

采用目前通用的开发平台和运行环境，运用多媒体、网络和数据库技术，开发了“基础化学实验国家级教学示范中心网站”，将教学和管理融为一体，在程序的设计上注其实用性、安全性、综合性和智能性，实现了网上选课、网上预约实验、网上答疑、学生实验预习、学生自测和网络考试等重要模块功能的综合性智能化，对网站功能进一步的强化和完善作了介绍。     

基于自然语言理解的智能答疑系统研究

分析了当前的答疑系统在智能性、精确性和查询速度上存在的问题，提出了基于自然语言理解的智能答疑系统模型，围绕该模型介绍了系统模型的关键技术。     

阅读教学的问答对话结构

阅读教学是问答对话的交流活动.问题源自文本,师生在与文本的对话中寻找答案,并置入新问题;在教材编者、师生、生生之间的多元碰撞交流中,获得意义的创造.