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A method of detecting emerging trends in research topics
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作者 Fei GE Zongying TAN 《Chinese Journal of Library and Information Science》 2014年第2期65-81,共17页
Purpose:This paper proposes a method of detecting emerging trends in research topics from a more micro perspective.Design/methodology/approach:Through co-word clustering to identify research topics and analyzing posit... Purpose:This paper proposes a method of detecting emerging trends in research topics from a more micro perspective.Design/methodology/approach:Through co-word clustering to identify research topics and analyzing position changes of topic words in the keywords life-cycle diagram during different time periods,we detected emerging trends in research topics from a more micro perspective.I'he method was applied to the field of nanotechnology to verify its effectiveness and practicability.Findings:The results show that this method can be used to detect emerging trends in research topics from a more micro perspective,as it divides keywords into five categories:Potential keywords,emerging keywords,hot keywords,stable keywords and recession keywords,through which more details of topic changes can be found.Research limitations:We used keywords provided by authors and database indexers for keywords extraction.But this approach may lead to the problem of 'indexer effect'.The method may have a limited effect when applied to a disciplinary domain such as mathematics,which evolves slowly.Practical implications:This study provides information analysts with insights into the way to better understand specialty areas of a discipline domain and formulate research policies and strategic plans.Originality/value:This study contributes to the current literature by proposing a new method,which can detect emerging trends in research topics from a more micro perspective. 展开更多
关键词 Emerging trend detection Keywords life-cycle Four quadrant diagram
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Tech to Protect Football Players' Heads--Technology Emerging to Detect and Prevent Concussions' in Football
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作者 Amanda Onion 丁娓娓 《当代外语研究》 2004年第12期4-6,共3页
头球是足球比赛中有力的得分手段,前德国国脚比埃尔霍夫就以头球著称。但医学研究发现,头球有可能导致颈部和头部损伤,并引发脑损伤,轻者引起人的轻微不适,重者则会危及生命。如果国际足联无法禁止头球,那么应该如何有效地保护、并且最... 头球是足球比赛中有力的得分手段,前德国国脚比埃尔霍夫就以头球著称。但医学研究发现,头球有可能导致颈部和头部损伤,并引发脑损伤,轻者引起人的轻微不适,重者则会危及生命。如果国际足联无法禁止头球,那么应该如何有效地保护、并且最大限度地降低头球给运动员的大脑带来的损伤程度呢? 展开更多
关键词 Technology Emerging to Detect and Prevent Concussions Tech to Protect Football Players in Football Heads
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