Exchanging social support on online teacher groups: Relation to teacher self-efficacy

The present study explored the relation between exchanging social support on online teacher groups and teacher self-efficacy. An online survey was conducted inside a massive Facebook teacher group, and 584 elementary school teachers provided information regarding Facebook use, self-efficacy for creative teaching, and the extent to which they provided and received support on the online teacher group. Results showed that teacher self-efficacy varied as a function of years of teaching experience, length of group membership, and the extent to which teachers provided and received social support on the online teacher group. Furthermore, the providing of online support predicted teacher self-efficacy after taking into account the effects of teaching experience and group membership. The findings are discussed in terms of the features and importance of social support exchange on online teacher support groups.     

Fake news and COVID-19: modelling the predictors of fake news sharing among social media users

Fake news dissemination on COVID-19 has increased in recent months, and the factors that lead to the sharing of this misinformation is less well studied. Therefore, this paper describes the result of a Nigerian sample (n = 385) regarding the proliferation of fake news on COVID-19. The fake news phenomenon was studied using the Uses and Gratification framework, which was extended by an “altruism” motivation. The data were analysed with Partial Least Squares (PLS) to determine the effects of six variables on the outcome of fake news sharing. Our results showed that altruism was the most significant factor that predicted fake news sharing of COVID-19. We also found that social media users’ motivations for information sharing, socialisation, information seeking and pass time predicted the sharing of false information about COVID-19. In contrast, no significant association was found for entertainment motivation. We concluded with some theoretical and practical implications.     

CDN与P2P结合的技术在流媒体分发和交付系统中的应用

从电信运营商的角度分析了CDN技术和P2P技术在流媒体分发和交付系统中各自的特点。在此基础上,将CDN与P2P技术相结合,提出CDN+P2P架构,并阐述了该架构实现流媒体分发和交付系统的优点。     

浅析媒体资产管理系统在广电系统的应用

媒体资产管理系统在广电领域具有广泛应用。简要阐述了媒体资产管理的相关概念,介绍了广电媒体资产管理系统的组成、各子系统功能以及相关关系,并对媒体资产管理系统在广电系统中的应用现状和前景进行了分析。     

Why do people purchase virtual goods? A uses and gratification (U&G) theory perspective

Few literature studies have investigated the relationships between different uses and gratifications (U&Gs) of mobile instant messaging (MIM) apps, continuation, and purchase intentions. To address this gap, the researchers aimed to examine the influence of the content, social, process, and technology U&Gs of MIM on continuation intentions toward MIMs, and purchase intentions toward virtual goods available on MIMs. A comprehensive research model was developed based on the U&G theory, which was tested using cross-sectional data from 309 Japanese MIM users. The study considered six different U&Gs of MIM as independent variables and purchase intentions towards stickers and continuation intentions towards MIM as dependent variables. The study results suggest that exposure U&G has a significant positive association with MIM sticker purchase intentions. The entertainment and affection U&G are positively associated with continuation intentions towards MIM use. The study contributes to the literature by investigating U&Gs that motivate MIM users to have both positive purchase intentions toward virtual goods, such as stickers, and continuation intentions toward MIMs. The study has significant theoretical and practical implications for both researchers and practitioners who are interested in virtual goods, the virtual economy, MIM apps, social media, new media, and the service economy.     

基于流媒体技术的视频新闻网络发布系统应用研究

互联网技术的发展给视频新闻传播带来巨大冲击,将网络技术同传统的电视媒体相结合,极大地扩展了视频新闻的传播空间。在研究了电视媒体视频新闻传播系统的基础上,建立了基于流媒体技术的视频新闻网络发布系统,并应用此系统原理完成了西安建筑科技大学视频新闻网的建设。     

The study of youth online: a critical review and agenda

The increasing and pervasive use of online technologies, especially social media, has inspired scholars to investigate how the Internet influences communication. As young people represent the fastest growing adopters of new online technology, much of this research targets youth activity online. But how is the communication discipline taking up this issue, broadly? Typically left to new media and computer-mediated communication scholars, we argue youth online activity raises new and exciting possibilities for researchers across the communication discipline. In this paper, we present a qualitative content analysis of communication research about youth and the Internet. Our analysis of over 700 journal articles provides a clear picture of past and present trends in communication research of youth online activity. Furthermore, we discuss the top four content themes, including: uses and gratifications, engagement, identity, and the uniqueness of youth experience. Critically, we articulate how such research organizes and positions youth in meaningful ways, paving the way for issues of inclusion. We call for a shift from a “difference” framework to one that more explicitly considers “complexity” before suggesting opportunities for future research that crosses and unites subdisciplinary boundaries.     

Consumers’ acceptance of information and communications technology in tourism: A review

The impact of information and communications technology (ICT) in tourism (e-tourism) has altered the ways tourism services are accessed and consumed. Ubiquitous and highly innovative ICTs provide different channels for consumers to use tourism services; thus, studies on e-tourism are numerous and fragmented. Different factors account for how consumers embrace these channels. The purpose of this study is to review studies on consumers’ acceptance or adoption of e-tourism in order to group the studies, synthesize the theories, models and frameworks used and identify the antecedents influencing consumers’ e-tourism acceptance and usage. A total of 71 studies from 2005 to 2016 (inclusive) from both tourism-based and non-tourism-based journals were selected, synthesized, and included. Based on their contexts, similarity and relevance, the 71 studies were segregated into three distinct groups. This study found that research among the groups is uneven. Implications and research directions are suggested.     

Comprehensive classification of collaboration approaches in E-learning

There are a number of approaches to learning such as traditional approaches (teacher-centered) and collaborative approaches (learner-centered). Nowadays, the concepts of collaboration and social interactions are the major trends in education. Therefore, many researchers embrace these concepts to offer the educational field enhanced learning environments which are supported by communication and collaboration techniques. The adaptation causes the existence of varied approaches which are addressing the collaborative learning techniques. As a result, there is a need for a mechanism to study those approaches and highlight their eminence. The aim of this paper is to give a comprehensive overview about the state-of-art in collaborative learning, especially by integrating social media tools. To do so, the study adopts a classification framework based on four different views (subject, purpose, method, and tool). The framework has been used to compare ten collaborative e-learning approaches. The finding indicates the potential of all approaches in developing an online learning environment for remote collaborative learning despite the lack of fulfilling all the requirements highlighted in the four views.     

基于ARM-Linux嵌入式系统的流媒体服务器实现

简要介绍了嵌入式开发的软硬件平台,针对H.263格式视频流和G.729格式音频流的多媒体数据实时传输要求,设计并实现了ARM-Linux嵌入式平台下基于RTP/RTCP协议的实时流媒体服务器.