国内教育技术学研究现状与启示——基于CiteSpace的可视化分析

国内教育技术领域核心期刊的载文在一定程度上能够反映我国教育技术学研究的现状与热点主题。文章以我国教育技术领域八本核心期刊2010—2020年收录的文献为样本,采取文献计量学分析与内容分析相结合的方法,从载文量、作者、发文单位和关键词等维度进行探究。研究发现,发文量逐渐趋于稳定,进入理性回归阶段;研究成果主要围绕新技术支持的个性化教学、教育人工智能与媒介素养教育、信息化教学创新与教师教育技术能力、网络环境中教育资源与教学模式、问题解决导向的教育游戏等研究热点展开。基于对已有研究的回顾与反思,为我国教育技术学研究提出三点启示。     

Bibliometric profile of neurogenic bladder in the literature: a 20-year bibliometric analysis

Neurogenic bladder is a dysfunction of the lower urinary tract caused by nervous system disorder. We investigated the trends in publication of articles under the topic “neurogenic bladder” using bibliometric analysis. Articles on neurogenic bladder, published between 1995 and 2014, were retrieved from the ISI Web of Science citation database. We analyzed the search results for authors, countries, institutions, journals, and top-cited papers. A total of 1,904 articles were retrieved. There was a small increase in the number of articles on neurogenic bladder from 1995 (n = 43) to 2014 (n = 117). The USA was the leading country in the total number of articles (n = 598). However, the number of publications from China has rapidly increased, and China was ranked second in 2014. Emmanuel Chartier-Kastler (n = 65) was the most productive author, and University of Paris VI (Paris 6) (n = 61) was the most productive institution. The Journal of Urology published the greatest number of articles on this topic (n = 285). Articles on neurogenic bladder were often published in a professional journal under the category Urology & Nephrology, Neurosciences & Neurology, or Rehabilitation. Visualization analysis based on co-citation networks was conducted using CiteSpace III. Visualization analysis revealed that the hot spots in neurogenic bladder were botulinum toxin-A, prazosin, bethanechol, and afferent pathways. These findings provide new insight into the publication trends and hot spots in neurogenic bladder.     

Energy Storage Ceramics: A Bibliometric Review of Literature

Energy storage ceramics is among the most discussed topics in the field of energy research. A bibliometric analysis was carried out to evaluate energy storage ceramic publications between 2000 and 2020, based on the Web of Science (WOS) databases. This paper presents a detailed overview of energy storage ceramics research from aspects of document types, paper citations, h-indices, publish time, publications, institutions, countries/regions, research areas, highly cited papers, and keywords. A total of 3177 publications were identified after retrieval in WOS. The results show that China takes the leading position in this research field, followed by the USA and India. Xi An Jiao Tong Univ has the most publications, with the highest h-index. J.W. Zhai is the most productive author in energy storage ceramics research. Ceramics International, Journal of Materials Science-Materials in Electronics, and the Journal of Alloys and Compounds are the most productive journals in this field, and materials science—multidisciplinary is the most frequently used subject category. Keywords, highly cited papers, and the analysis of popular papers indicate that, in recent years, lead-free ceramics are prevalent, and researchers focus on fields such as the microstructure, thin films, and phase transition of ceramics.     

我国儿童合理用药的文献研究计量学分析

目的 为进一步促进我国儿童合理用药研究提供建议。方法 运用文献计量学和可视化的方法,采用数据挖掘、信息抽取、关键词共现分析等技术,对知网、万方、维普三大数据库收录的2013—2017年我国儿童合理用药的相关文献进行分析。结果 共检索到相关文献14 948篇;从期刊分布来看,文献分布比较广泛,说明儿童合理用药问题受到社会各界的广泛关注;从作者单位分布来看,文献主要来自各儿童医院、妇幼保健院及综合医院,尤其是大学的附属医院是我国儿童合理用药研究的主要力量;由选用的高频关键词看出,我国儿童合理用药的研究热点为抗菌药物或抗生素、糖皮质激素、超说明书用药等方面。结论 虽然文献总量很大,但多为对单个医院单因素儿童用药干预前后对比的研究,多地区、多层次、大样本的合理用药研究较少,研究缺乏系统性,研究的广度和深度还有所欠缺。     

基于VOSviewer和Citespace可视化图谱分析党参的研究现状与发展趋势

目的 采用文献计量学方法分析总结党参的研究历史、发展现状、趋势热点。方法 检索并筛选1992年1月1日—2022年6月30日中国知网(CNKI)数据库和Web of Science数据库核心集党参相关文献。选用VOSviewer和CiteSpace软件从发文量、作者、机构、国家、基金资助、发文期刊、被引频次、关键词、聚类、突现词方面进行可视化分析,并绘制可视化图谱。结果 共纳入有效文献594篇,中文文献484篇,英文文献110篇。中、英文文献发文量整体呈上升趋势。中、英文文献发文量最多的学者分别是高建平和ZOU Yuanfeng。中国是发表党参研究最多的国家。山西医科大学药学院和中国科学院分别是中、英文文献发文量最多的机构。党参相关研究基金资助最多的是国家科学自然基金。接收中、英文文献最多的期刊分别是《中药材》和International Journal of Biological Macromolecules。中文文献引用频次最高的是1篇对党参化学成分和药理作用总结归纳的综述性文章,英文文献引用频次最高的是关于党参多糖结构鉴别及药理作用的研究报道。中文文献的关键词、聚类、突现词图谱显...     

Is the randomized controlled drug trial in Europe lagging behind the USA?

WHAT IS ALREADY KNOWN ABOUT THIS SUBJECT?

• The USA, UK and Germany have a strong position in performance of drug and nondrug randomized controlled trials.
• Europe''s position in the quantitative and qualitative performance in drug randomized controlled trials in particular, and factors that drive the quantitative and qualitative performance of drug randomized controlled trials in Europe, are unknown.

WHAT THIS STUDY ADDS

• Europe''s position in the quantitative and qualitative performance of randomized controlled drug trials lags behind USA.
• Factors are identified that are associated with the difference in publication output between countries.
• The number of headquarters of pharmaceutical companies in a country, the research expenditures by pharmaceutical companies, as well as health-related R&D expenditures of a country appear to contribute to a relatively high scientific performance in randomized controlled drug trials.

AIMS

Performance of randomized controlled drug trials (drugRCTs) adds to the scientific output, scientific knowledge, scientific training and up-to-date status of healthcare and may drive economy. The purpose of this study was to benchmark Europe''s position on drugRCTs relative to the rest of the world, and to identify factors that may drive this performance.

METHODS

The number of scientific publications on drugRCTs, indexed in PubMed and Thomson Scientific/Web of Science database over the period 1995–2004, was used as a proxy measure for the quantitative drugRCT output. The international citation impact of these publications was used as a proxy measure for the qualitative drugRCT output.

RESULTS

Country''s origin of 103 211 publications was determined. After adjustment for population size, the number of drugRCT publications from Europe, USA and Australia/Japan was 102, 124 and 44 publications per million inhabitants, respectively. The proportional increase in publication output from 1995 until 2004 was lower in Europe compared with the USA and Australia/Japan (29.1, 40.1 and 63.4%, respectively). The number of citations per publication was 4.9 in Europe, 7.0 in the USA and 3.4 in Australia/Japan. Within Europe, the UK, Germany and Italy produced most publications. Country-specific factors associated with publication output in Europe were the number of pharmaceutical companies with headquarters in a country (R² = 0.71, P < 0.001), national R&D expenditures by pharmaceutical companies (R² = 0.63, P < 0.001) and health-related R&D expenditures by national governments (R² = 0.22, P = 0.052).

CONCLUSIONS

When adjusted for population size, quantitative and qualitative performance of drugRCTs in Europe lags behind the USA but is ahead of Australia/Japan. Several factors appear to explain the differences, among which are the number of headquarters of pharmaceutical companies in a country, the research expenditures by pharmaceutical companies, as well as health-related R&D expenditures of a country. To enhance and strengthen Europe''s position, researchers may strengthen their collaborations with local pharmaceutical companies, and national governments could increase their budgets for medical research funding.     

健康状态中医辨识文献计量学分析

[目的]分析发表的中医健康辨识的文献情况及发展趋势。[方法]检索中国知网(CNKI),维普(VIP)、以及Pubmed等数据库,从发表时间、作者单位、文献来源、基金分布及研究方法等方面对健康状态中医辨识的文献进行计量学分析。[结果]2011年以来相关研究文献有较明显增长,北京、广东等地区处于领先地位。文献中流行病学研究占44.1%,其余为综述、理论研究等。[结论]健康状态中医辨识的相关研究成果日益增加,但在研究的多学科交叉及客观化、微观化和系统化方面应进一步加强,不断提升相关研究的质量。     

lncRNA在肝细胞癌组织中表达及生物学作用的文献计量分析

目的:通过对长链非编码RNA(lncRNA)在肝细胞癌组织中表达及生物学作用的相关文献进行计量分析,探索该领域近10年的研究现状、热点及趋势。方法:以Web of Science核心合集数据库为数据来源,利用Excel、VOSviewer、Citespace、Carrot 2软件分别进行年度发文情况、期刊分布情况、国家/机构分布情况、作者分布情况及关键词分析,并绘制相关可视化图谱。结果:纳入1 673篇SCI文献,载文量最多的期刊是Oncotarget,引文量最高的作者是Sun Shuhan,中国为该领域研究的主要国家,南京医科大学、第二军医大学是该领域研究的重要机构,主要的研究热点是基因表达、lncRNAs的生物学作用。蛋白激酶B、凋亡、自噬是研究的前沿。结论:研究结果为科研工作者今后开展相关课题提供了新的视角,为研究人员寻找潜在合作者与研究合作机构、研究热点及趋势提供了有价值的信息。