Yuzhu Wang

In this study, we sorted out the research hotspots in sports science by bibliometric method and also used social network analysis to explore the relationship between knowledge networks and their scientific performance. We found 38 high-frequency keywords with obvious curricular nature or classical direction of sports science research and 4 high-frequency research groups. The topics of hotspots covered the secondary disciplines of sports science: physical education and training, national traditional sports, sports human science, and sports humanities and sociology. However, sports human science research is less; therefore, accelerating the research of sports human science is the focus of future research. Meanwhile, we use social network structure analysis to study the relationship between knowledge elements in knowledge networks and their scientific performance. In addition to betweenness centrality, the closeness centrality, clustering coefficient, and structural holes of knowledge elements are significantly and positively related to their influence. In the relationship between knowledge elements and productivity, betweenness centrality and closeness centrality show significant positive correlations, and clustering coefficient and structural hole show significant negative correlations. Therefore, knowledge networks can be used to predict the scientific performance of knowledge elements.

As a rising power, China has become actively involved in regional bilateral/multilateral arrangements in the post-Cold War, especially post-crisis (1997– 98 financial crises) era, and this has attracted much attention from within and outside East Asia. Diverse understandings of China's regional ambition have appeared, especially since the launch of the China-ASEAN free trade agreement (FTA). Aiming at deciphering the ideas behind China's regional thinking, this paper argues that China's perspective on regionalism is a broadened economic regionalism, which is basically economic-centered, because economic performance is vital both to its long-term strategic target and to its internal social stability. This economic regionalism will last for some time because China will be a developing country at least in the mid-term, which means China will have to focus more on its economic performance. In practice, China will engage bilaterally or multilaterally with others through its FTA strategy. Thus, China cannot be a main contributor to East Asian integration as expected, owing to the inward-looking nature of its economic regionalism. Also, the institutional integration of East Asia needs the effort of all the players in the region