基于Web of Science核心数据库中2010—2020年中国与东盟科研合作产出数据,采用社会网络分析法从整体和个体两个层面探究中国—东盟科研合作网络特征,并借助知识图谱法探究中国—东盟科研合作主题演化特征。结果表明:(1)从整体网络结构...基于Web of Science核心数据库中2010—2020年中国与东盟科研合作产出数据,采用社会网络分析法从整体和个体两个层面探究中国—东盟科研合作网络特征,并借助知识图谱法探究中国—东盟科研合作主题演化特征。结果表明:(1)从整体网络结构特征来看,中国—东盟科研合作网络的规模不断扩大,科研产出增长较快,网络结构呈现低密度和小世界网络特征,国家间合作关系的紧密性有待加强。(2)从国家节点特征来看,东盟各国所处网络位置差异明显,马来西亚、泰国和新加坡的中心性排名最高,是中国重要的合作伙伴。此外,美国、澳大利亚、英国等发达国家是中国—东盟科研合作网络的重要参与者。(3)从合作主题演化特征来看,中国—东盟科研合作的主题不断延伸。在材料科学交叉学科等领域,中国与新加坡等东盟国家具有明显的主题共线特征,且中国—东盟科研合作的部分主题随时间变化表现出较强的突现特征。展开更多
Neural stem cells,which are capable of multi-potential differentiation and self-renewal,have recently been shown to have clinical potential for repairing central nervous system tissue damage.However,the theme trends a...Neural stem cells,which are capable of multi-potential differentiation and self-renewal,have recently been shown to have clinical potential for repairing central nervous system tissue damage.However,the theme trends and knowledge structures for human neural stem cells have not yet been studied bibliometrically.In this study,we retrieved 2742 articles from the PubMed database from 2013 to 2018 using "Neural Stem Cells" as the retrieval word.Co-word analysis was conducted to statistically quantify the characteristics and popular themes of human neural stem cell-related studies.Bibliographic data matrices were generated with the Bibliographic Item Co-Occurrence Matrix Builder.We identified 78 high-frequency Medical Subject Heading(MeSH)terms.A visual matrix was built with the repeated bisection method in gCLUTO software.A social network analysis network was generated with Ucinet 6.0 software and GraphPad Prism 5 software.The analyses demonstrated that in the 6-year period,hot topics were clustered into five categories.As suggested by the constructed strategic diagram,studies related to cytology and physiology were well-developed,whereas those related to neural stem cell applications,tissue engineering,metabolism and cell signaling,and neural stem cell pathology and virology remained immature.Neural stem cell therapy for stroke and Parkinson’s disease,the genetics of microRNAs and brain neoplasms,as well as neuroprotective agents,Zika virus,Notch receptor,neural crest and embryonic stem cells were identified as emerging hot spots.These undeveloped themes and popular topics are potential points of focus for new studies on human neural stem cells.展开更多
文摘基于Web of Science核心数据库中2010—2020年中国与东盟科研合作产出数据,采用社会网络分析法从整体和个体两个层面探究中国—东盟科研合作网络特征,并借助知识图谱法探究中国—东盟科研合作主题演化特征。结果表明:(1)从整体网络结构特征来看,中国—东盟科研合作网络的规模不断扩大,科研产出增长较快,网络结构呈现低密度和小世界网络特征,国家间合作关系的紧密性有待加强。(2)从国家节点特征来看,东盟各国所处网络位置差异明显,马来西亚、泰国和新加坡的中心性排名最高,是中国重要的合作伙伴。此外,美国、澳大利亚、英国等发达国家是中国—东盟科研合作网络的重要参与者。(3)从合作主题演化特征来看,中国—东盟科研合作的主题不断延伸。在材料科学交叉学科等领域,中国与新加坡等东盟国家具有明显的主题共线特征,且中国—东盟科研合作的部分主题随时间变化表现出较强的突现特征。
基金supported by the National Natural Science Foundation of China,No.81471308(to JL)the Stem Cell Clinical Research Project in China,No.CMR-20161129-1003(to JL)the Innovation Technology Funding of Dalian in China,No.2018J11CY025(to JL)
文摘Neural stem cells,which are capable of multi-potential differentiation and self-renewal,have recently been shown to have clinical potential for repairing central nervous system tissue damage.However,the theme trends and knowledge structures for human neural stem cells have not yet been studied bibliometrically.In this study,we retrieved 2742 articles from the PubMed database from 2013 to 2018 using "Neural Stem Cells" as the retrieval word.Co-word analysis was conducted to statistically quantify the characteristics and popular themes of human neural stem cell-related studies.Bibliographic data matrices were generated with the Bibliographic Item Co-Occurrence Matrix Builder.We identified 78 high-frequency Medical Subject Heading(MeSH)terms.A visual matrix was built with the repeated bisection method in gCLUTO software.A social network analysis network was generated with Ucinet 6.0 software and GraphPad Prism 5 software.The analyses demonstrated that in the 6-year period,hot topics were clustered into five categories.As suggested by the constructed strategic diagram,studies related to cytology and physiology were well-developed,whereas those related to neural stem cell applications,tissue engineering,metabolism and cell signaling,and neural stem cell pathology and virology remained immature.Neural stem cell therapy for stroke and Parkinson’s disease,the genetics of microRNAs and brain neoplasms,as well as neuroprotective agents,Zika virus,Notch receptor,neural crest and embryonic stem cells were identified as emerging hot spots.These undeveloped themes and popular topics are potential points of focus for new studies on human neural stem cells.
