Social media such as Blog, Facebook, Twitter, Youtube and so on are not only use for entertainment and communication, but also plays social and political role on people's daily life. Whether social media enhance d...Social media such as Blog, Facebook, Twitter, Youtube and so on are not only use for entertainment and communication, but also plays social and political role on people's daily life. Whether social media enhance democracy or not and how social media impact on journalism and the issues of social media, especially the social networking will be discusses on this article.展开更多
以同被期刊引用报告(Journal Citation Reports)和Scimago期刊排名(Scimago Journal Rank)收录的,来源于开放存取期刊目录(Directory of Open Access Journals)的医学开放存取期刊为数据源,构建84种医学开放存取期刊引文矩阵,利用社会...以同被期刊引用报告(Journal Citation Reports)和Scimago期刊排名(Scimago Journal Rank)收录的,来源于开放存取期刊目录(Directory of Open Access Journals)的医学开放存取期刊为数据源,构建84种医学开放存取期刊引文矩阵,利用社会网络分析法中的核心—边缘结构理论对84种医学开放存取期刊进行分析。使用Ucinet软件计算各期刊的核心度,并构建其核心—边缘结构模型以划分出核心、半核心和非核心期刊。研究结果表明,核心度不可单独用于评价开放存取期刊,但是,核心—边缘结构分析对开放存取核心期刊选取具有一定的参考价值。展开更多
文摘Social media such as Blog, Facebook, Twitter, Youtube and so on are not only use for entertainment and communication, but also plays social and political role on people's daily life. Whether social media enhance democracy or not and how social media impact on journalism and the issues of social media, especially the social networking will be discusses on this article.
文摘以同被期刊引用报告(Journal Citation Reports)和Scimago期刊排名(Scimago Journal Rank)收录的,来源于开放存取期刊目录(Directory of Open Access Journals)的医学开放存取期刊为数据源,构建84种医学开放存取期刊引文矩阵,利用社会网络分析法中的核心—边缘结构理论对84种医学开放存取期刊进行分析。使用Ucinet软件计算各期刊的核心度,并构建其核心—边缘结构模型以划分出核心、半核心和非核心期刊。研究结果表明,核心度不可单独用于评价开放存取期刊,但是,核心—边缘结构分析对开放存取核心期刊选取具有一定的参考价值。