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
为了对防护服装研究现状有系统认识,运用SciMAT软件对Web of Science数据库中有关防护服装的核心文献进行关键词共现分析;利用生成的关键词战略图、演化图揭示防护服装的发展现状及领域成熟度。研究发现:随着时间的推移,防护服装研究关...为了对防护服装研究现状有系统认识,运用SciMAT软件对Web of Science数据库中有关防护服装的核心文献进行关键词共现分析;利用生成的关键词战略图、演化图揭示防护服装的发展现状及领域成熟度。研究发现:随着时间的推移,防护服装研究关键词不断增多,演化关系逐渐复杂,涉及的领域越来越广泛,形成了热防护、职业与医用、日常行为3条主要演化路径;随着不同时期社会和自然环境的变迁,防护服装研究不断涌现出新的内容;个人防护、纺织技术、功能设计、人类行为等主题是目前防护服装研究领域的热点。展开更多
教育数字化转型已成为当今世界教育变革显见现象,而数字化课程是实现教育数字化学习的重要载体,关注国际数字化课程领域研究最新动态,利于推进我国教育数字化战略行动和高质量教育体系发展。以Web of Science数据库中2017—2021年与数...教育数字化转型已成为当今世界教育变革显见现象,而数字化课程是实现教育数字化学习的重要载体,关注国际数字化课程领域研究最新动态,利于推进我国教育数字化战略行动和高质量教育体系发展。以Web of Science数据库中2017—2021年与数字化课程相关的文献为数据来源,采用Citespace软件分析发现:近五年来国际数字化课程领域研究前沿凸显在“数字化游戏”和“移动学习”层,研究主题聚焦在师生课程参与、数字化游戏、教学模式及数字化素养方面,未来三大趋势将体现在数字化课程与人的关系研究、数字化课程与资源的关系研究以及数字化课程的效果评价研究领域。展开更多
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.
文摘为了对防护服装研究现状有系统认识,运用SciMAT软件对Web of Science数据库中有关防护服装的核心文献进行关键词共现分析;利用生成的关键词战略图、演化图揭示防护服装的发展现状及领域成熟度。研究发现:随着时间的推移,防护服装研究关键词不断增多,演化关系逐渐复杂,涉及的领域越来越广泛,形成了热防护、职业与医用、日常行为3条主要演化路径;随着不同时期社会和自然环境的变迁,防护服装研究不断涌现出新的内容;个人防护、纺织技术、功能设计、人类行为等主题是目前防护服装研究领域的热点。
文摘教育数字化转型已成为当今世界教育变革显见现象,而数字化课程是实现教育数字化学习的重要载体,关注国际数字化课程领域研究最新动态,利于推进我国教育数字化战略行动和高质量教育体系发展。以Web of Science数据库中2017—2021年与数字化课程相关的文献为数据来源,采用Citespace软件分析发现:近五年来国际数字化课程领域研究前沿凸显在“数字化游戏”和“移动学习”层,研究主题聚焦在师生课程参与、数字化游戏、教学模式及数字化素养方面,未来三大趋势将体现在数字化课程与人的关系研究、数字化课程与资源的关系研究以及数字化课程的效果评价研究领域。
