首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   155篇
  免费   3篇
教育   36篇
科学研究   37篇
体育   6篇
信息传播   79篇
  2023年   2篇
  2022年   3篇
  2021年   8篇
  2020年   15篇
  2019年   21篇
  2018年   17篇
  2017年   10篇
  2016年   13篇
  2015年   4篇
  2014年   9篇
  2013年   25篇
  2012年   4篇
  2011年   7篇
  2010年   12篇
  2009年   7篇
  2008年   1篇
排序方式: 共有158条查询结果,搜索用时 156 毫秒
61.
By analyzing all of the keywords and hashtags that became Trending Topics (TTs) in the Italian Twittersphere during both an electoral period and a non-electoral period, we evaluated what Italian Twitter users discussed. We found that topics about actors and issues in the entertainment field (e.g., singers, Hollywood stars and television stars) drive Italian discussions and that the political sphere is a secondary topic that elicits minor arguments within users’ conversations. However, we believe that even this low level of discussion about politics was able to influence the public agenda, thanks to the advent of a hybrid media system in Italy. In fact, Italian print media and television constantly covered the individual tweets or hashtags of a niche of citizens who were discussing politics on Twitter. Television, a part of the Italian media system that is highly consumed by the public, is also a primary factor in determining the appearance of a specific actor or issue on the TT list. Furthermore, we empirically confirmed the logic of breaking news events on Twitter, a microblogging site that primarily focuses on exceptional occurrences.  相似文献   
62.
Sexual assault affects hundreds of thousands of Americans each year. Social media platforms such as Twitter allow users to anonymously share 140-character messages that serve to convey information and foster a supportive community. Following the release of a 2005 video that captured then Republican presidential candidate Donald Trump bragging in vulgar terms about kissing, groping, and trying to have sex with women, women took to Twitter to share their personal stories of sexual assault using the hashtag #NotOkay. The present study examines 1,091 tweets from women who shared their lived experiences with sexual assault. Findings revealed four themes: characteristics of sexual assault, relationship to perpetrator, public vs. private locations, and action and consequence. The results highlight Twitter as a venue for women to share their lived experiences with sexual assault.  相似文献   
63.
While a good deal of research has examined the uses of Twitter in journalism, comparably few research projects employ comparative research designs in order to provide new insights. The present study details Twitter use by public service broadcasters (PSBs) during recent national elections in Norway and Sweden. Utilizing quantitative analysis of social media content in tandem with qualitative interviews with key PSB journalists, the main results indicate that while the PSB organizations—the Norwegian NRK and the Swedish SVT—are both frequently contacted by “regular” citizens on Twitter, they seem to prefer to retweet and interact with journalists, politicians or other “elite” users. Compared with the interviews performed, the study uncovers an interesting tension as journalists often talk about the need to engage with “regular” users—a practice that is arguably in line with PSB regulations, but that is seldom adhered to in the contexts studied here.  相似文献   
64.
For sports actors, social media provide the opportunity to bypass sports journalism's gatekeeping function and to disseminate sports-related information to target groups directly. Thus, social media have been conceptualized as a competitor to journalism. We argue that the relation is much more diverse. We differentiate between competitive, integrative, and complementary facets of the relationship between sports journalism and social media. Our study focuses on complementarity and analyzes how far social and mainstream media serve as sources for each other. Therefore, we combine an online survey among 122 German sports journalists, an analysis of the Twitter networks of German sports journalists during the Winter Olympics 2014, and a content analysis of the most popular news items in social media. Results suggest that sports journalists perceive social media accounts of athletes as beneficial news sources, especially to gather inside information. Huge sports events influence the social media activities of sports journalists as they tend to have stronger connections to athletes at these times. Whereas social media appear to be significant sources for sports journalism, sports media content receives little attention in social media. However, our results indicate that sports journalism and social media indeed maintain a complementary relation.  相似文献   
65.
Social networking sites provide opportunities for informal and social learning of academic practices in higher education, yet not all academics engage in these spaces. This qualitative study suggests that while Twitter offers informal opportunities for academic development, inhibiting factors prevent staff from establishing their social presence and participating in conversations on academic Twitter. In a pervasively digital era, rethinking academic development practices is required to build digital capacity and digital identity of staff to support participation on social networking sites for academic learning and development.  相似文献   
66.
ABSTRACT

The 2017 Equifax data breach left 144.5 million users digitally vulnerable to identity theft and future hacks. The organization’s failure to provide ongoing communication and information regarding the attack, motivated users to form crisis communities within the Twitter platform. This study examines the discourses present within the platform as users discussed the data breach. Digital crisis communities provide researchers opportunities to study how public users respond and react to a digital threat, particularly one that impacts online security and privacy. Through a qualitative analysis of tweets from the 3 weeks after the breach was announced, three discourses emerged that represented user frustrations and reactions to the security violation. These include breaking news, anger and outrage, and blame attribution. The findings of this study are relevant for those studying crisis communication, the Twitter platform, and online communities.  相似文献   
67.
Observing the positive aspects of others’ lives on social media (SM) can bring about envy among users. Drawing from social comparison and technology acceptance theories, this study develops a research model to explain how envy occurs and impacts SM users’ behavior. In this work, we conducted two studies across three different SM settings to investigate two types of envy, benign and malicious envy. The results show that malicious envy is negatively related to the dependent variable of SM use intention while benign envy facilitates it. The findings provide many valuable contributions to both information systems (IS) academia and industry. This study identifies the unique SM factors intertwining with envy. Moreover, this work helps SM users and practitioners be aware of the potential envy issue on SM so they can take effective actions to enhance SM use.  相似文献   
68.
Reducing information asymmetry between investors and a firm can have an impact on the cost of equity, especially in an environment or times of uncertainty. New technologies can potentially help disseminate corporate financial information, reducing such asymmetries. In this paper we analyse firms’ dissemination decisions using Twitter, developing a comprehensive measure of the amount of financial information that a company makes available to investors (iDisc) from a big data of firms’ tweets (1,197,208 tweets). Using a sample of 4131 firm-year observations for 791 non-financial firms listed on the US NASDAQ stock exchange over the period 2009–2015, we find evidence that iDisc significantly reduces the cost of equity. These results are pronounced for less visible firms which are relatively small in size, have a low analyst following and a small number of investors. Highly visible firms are less likely to benefit from iDisc in influencing their cost of equity as other communication channels may have widely disseminated their financial information. Our investigations encourage managers to consider the benefits of directly spreading a firm’s financial information to stakeholders and potential investors using social media in order to reduce firm equity premium (COE).  相似文献   
69.
将Web2.0元素融入到学位论文数据库建设和服务中,提出学位论文数据库2.0概念,对学位论文数据库2.0的内涵、系统特色功能进行了分析,对建设学位论文数据库2.0过程中的有关问题进行了思考与设计。  相似文献   
70.
The widespread use of the Internet and the constant increase in users of social media platforms has made a large amount of textual data available. This represents a valuable source of information about the changes in people’s opinions and feelings. This paper presents the application of Emotional Text Mining (ETM) in the field of brand management. ETM is an unsupervised procedure aiming to profile social media users. It is based on a bottom-up approach to classify unstructured data for the identification of social media users’ representations and sentiments about a topic. It is a fast and simple procedure to extract meaningful information from a large collection of texts. As customer profiling is relevant for brand management, we illustrate a business application of ETM on Twitter messages concerning a well-known sportswear brand in order to show the potential of this procedure, highlighting the characteristics of Twitter user communities in terms of product preferences, representations, and sentiments.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号