A literature review on beneficial role of vitamins and trace elements: Evidence from published clinical studies

COVID-19 is a kind of SARS-CoV-2 viral infectious pneumonia. This research aims to perform a bibliometric analysis of the published studies of vitamins and trace elements in the Scopus database with a special focus on COVID-19 disease. To achieve the goal of the study, network and density visualizations were used to introduce an overall picture of the published literature. Following the bibliometric analysis, we discuss the potential benefits of vitamins and trace elements on immune system function and COVID-19, supporting the discussion with evidence from published clinical studies. The previous studies show that D and A vitamins demonstrated a higher potential benefit, while Selenium, Copper, and Zinc were found to have favorable effects on immune modulation in viral respiratory infections among trace elements. The principles of nutrition from the findings of this research could be useful in preventing and treating COVID-19.     

中国动物行为学研究现状的文献计量学分析

采用文献计量学的方法,在《中国学术期刊网络出版总库》和《Science Citation Index》数据库中,以“动物行为”、“animal behavior”、“ethology”作为检索词,检索了中国学者在国内外期刊上发表的中英文文献,并对中国动物行为学领域发文的年代、期刊、研究单位、作者、被引频次、国际合作、基金项目、研究对象和领域等内容进行了定量分析。结果表明：中国动物行为学研究起步较晚,近三十多年来相关动物行为学文献在波动中增长,并在近几年有从中文向英文转移的趋势;平均每篇文献被引2.81次;作者和研究单位虽然分散,但已经形成了专门从事动物行为研究的核心作者群、研究机构群;国内外均存在动物行为学文献的主要期刊分布区,但国内迫切需要一种动物行为学的专业期刊;动物行为研究的基金来源广泛,其中国家自然科学基金占重要地位;有国外作者参与的英文文献比例远大于中文文献,主要合作国家是美国;中国动物行为研究对象主要为哺乳动物,鸟类是中文文献第二位研究对象而昆虫是英文文献的第二位研究对象;繁殖行为是中国动物行为主要研究领域,中文文献在行为观察记录和行为谱、活动节律和时间分配方面的比例远远大于英文文献。总体上看,中国动物行为学文献发展符合科学文献逻辑增长曲线;整体研究水平偏低,国际影响力有待提高;中国动物行为学已步入新的发展阶段。     

Trends in diabetes research outputs in South Africa over 30 years from 2010 to 2019: A bibliometric analysis

Diabetes mellitus (DM) is one of the leading causes of mortality in South Africa, which is impelled by people’s consumption of unhealthy diets and lifestyles, negligence about an individual’s health status, and increased urbanization. DM can be linked to several human diseases and thus, making it an important public health issue in the South African health sector. Therefore, it is necessary to assess the level of research that has been conducted in the country on diabetes, in a quest for solutions against the deadly disease. Hence, the present study aimed to map diabetes-related research in South Africa from 2010 to 2019. Data on the subject was retrieved from the Web of Science Core Collection (WoSCC) and bibliometrix package in Rstudio statistical software was used to analyze the data while VOSviewer was explored for data visualization networks. Our analysis revealed that the annual growth rate of publication trends was 23.2%. The authors per document were 23.3 with a collaboration index of 23.4. From the 416 articles analyzed, Islam MS (n = 34) was the most prolific author and the top active institution was University of KwaZulu-Natal (n = 165) and the top journal was Diabetes Research and Clinical Practice (n = 20). Findings from this study reveal that the quantity of research on diabetes has significantly increased over the decade, and the outcomes of this scientific progress can guide future research and substantially provide the basic needs for improving management procedures for diabetes in the country.     

基于文献计量的全球生物技术研究现状与发展趋势分析

采用文献计量分析方法,分析了全球生物技术研究领域的发展现状和趋势及其对中国生物技术研究发展的启示。研究结果表明:2019年我国在生物技术文献发表数量上已位列世界第一,但在生物技术文献的质量、学术影响力以及国际合作能力方面仍与欧美等发达生物技术国家存在一定差距,接着分析了全球生物技术研究的学科组成、各生物技术分支领域的研究交叉现状,最后分析了目前各生物技术细分领域的热点研究主题。针对当前我国面临的生物技术研究发展问题,我国应当注重研究成果质量,促进各学科间交叉融合,加强国际合作交流,顺应未来生物技术发展热点趋势。     

关于秸秆微生物降解的文献计量分析

随着可再生生物质能源研究的快速发展,秸秆的微生物降解成为世界范围内的研究热点。客观分析当前秸秆微生物降解领域的发展态势,可为我国秸秆降解领域工作人员提供情报动态,推进我国在新型生物质能源方面的深入研究。本文基于WebofScience数据库,利用HisCite和VOSviewer软件分析工具,对世界范围内关于秸秆微生物降解领域的发文数量、高发文国家、高发文期刊及高发文机构等数据进行分析。分析结果发现秸秆微生物降解研究自21世纪以来出现逐年递增的趋势,全球范围内对秸秆微生物降解的研究主要集中在应用微生物、农业和生物技术等方面。其中,美国、中国、德国和日本在秸秆微生物降解研究领域处于国际领先地位。美国的发文量和发文的影响力位列首位。我国在该领域发文量位列第二名,表明我国在秸秆微生物降解领域的研究具有一定的基础,但影响力较低,需要加强高水平的研究,带动我国在该领域研究实力的整体提升。     

根系分泌物国际研究态势分析

近几十年来,根系分泌物及其在生态学中的应用研究取得了很大的进展,植物根系分泌物尤其是森林植被的根系分泌物在生态恢复重建过程中的作用和功能受到越来越多的重视。本文以SCIE、CPCIS、CCR、IC等数据库为统计分析源,检索并分析了数据库中关于根系分泌物的研究论文（论文、会议论文和综述）产出,利用Thomson Data Analyzer（TDA）分析工具和Aureka分析平台进行数据挖掘。分析表明,该研究涉及多个学科领域,近年来在植物与土壤等学科领域的论文数量最多,而在国家分布的主题领域,美国在该领域的论文产出量最高,为全部论文产出的28.93%,基金资助情况方面,以美国国家科学基金会、中国国家基金委为植物根系分泌物研究的主要资助机构。另外从主题词分布、年度研究主题变化等文献计量学的角度进行了统计分析,以揭示国际国内关于植物尤其是林木（区别于作物）根系分泌物研究的发展现状和态势。     

马铃薯Y病毒属(Potyvirus)研究的文献计量分析

[目的]马铃薯Y病毒属(Potyvirus)是世界上最大的两个植物病毒属之一,对多种农作物造成危害.利用文献数据库,客观地分析国内外Potyvirus研究的发展动态,为国内外Potyvirus科研工作者和决策者提供参考.[方法]基于Web of Science数据库,采用文献计量学方法,对全球发表于1985-2012年的Potyvirus文献的国家、作者、机构、载文期刊及研究内容进行了数量和质量分析.[结果]检索到全球60个国家发表的Potyvirus文献2 442篇,以及每篇文献的被引频次和每个国家、机构及作者的H指数.经分析得出:全球Potyvirus研究论文的产出量自1991年呈稳定上升趋势,文献的数量和质量在统计的国家中,以美国最好,其次是法国、西班牙、澳大利亚、英国;美国的高产活跃作者最多;Potyvirus研究的热点是基因沉默和分子生物学,并随着研究技术方法的革新将不断深入;研究方向更多倾向于寄主方面的研究(如基因沉默、寄主抗性、与寄主互作等)及交叉学科;而中国在Potyvirus基础研究上距离国际先进水平还有很大距离,研究力量较少,有影响力的论文较少.[结论]美国在该领域的研究处于领先水平,我国仍需加强Potyvirus基础研究力量投入,努力缩短差距.     

Trends on enzyme immobilization researches based on bibliometric analysis

In this survey, a bibliometric analysis of the global scientific production on enzyme immobilization researches was developed using Web of Science© database. The time-span comprised the period from 1991 to 2017. A total of 9636 documents related to the subject were retrieved and analyzed according to seven main aspects: publication years, journals, countries, authors, organizations, keywords, and Web of Science categories. The results indicated that the countries with the highest number of publications were China and the United States. The most expressive international collaborative networks were evidenced between Brazil and Spain and between the USA and China. Additionally, the Spanish researchers were the ones that contributed most to this domain, while the Consejo Superior de Investigaciones Científicas and the Chinese Academy of Sciences were the most emblematic organizations. Finally, the analysis of keywords revealed that biosensor, lipase and glucose oxidase were the most cited terms among all publications, and also indicated the existence of a possible knowledge gap involving the terms Escherichia coli, Candida rugosa lipase and cytochrome-c in the context of enzyme immobilization. This study was efficient to evaluate the trends of the body of literature on enzyme immobilization research, subsidizing future decision-making in this field of science.     

Bibliometric analysis of recent sodium channel research

Although sodium channels have been a hot multidisciplinary focus for decades and most of nerve system drugs worked on alerting sodium channel function, the trends and future directions of sodium channel studies have not been comprehensive analyzed bibliometrically. Herein, we collected the scientific publications of sodium channels research and constructed a model to evaluate the current trend systematically.

Publications were selected from the Web of Science Core Collection (WoSCC) database from 2013 to 2017. Microsoft Excel 2016, Prism 6, and CiteSpace V software were used to analyze publication outputs, journal sources, countries, territories, institutions, authors, and research areas. A total of 4,275 publications on sodium channel research were identified. PLoS ONE ranked top for publishing 170 papers. The United States of America had the largest number of publications (1,595), citation frequency (19,490), and H-index (53). S. G. Waxman (62 publications) and W. A. Catterall (585 citations) were the most productive authors and had the greatest co-citation counts. This is the first report that shows the trends and future development in sodium channel publications, and our study provides a clear profile for the contribution to this field by countries, authors, keywords, and institutions.     

国际生物土壤结皮研究发展态势文献计量分析

生物土壤结皮是荒漠生态系统组成和地表景观的重要特征。近年来,各国和各相关研究机构对生物土壤结皮的研究力度不断加大。利用Bibexcel和NetDraw等文献计量工具,对Web of Science数据库中国际生物土壤结皮研究相关文献进行了分析。在对主要国家和机构的发文进行统计分析后发现:美国、德国和西班牙等国的生物土壤结皮研究论文的综合影响力较高;胡安·卡洛斯国王大学和美国地质调查局等机构的论文影响力较大;中国生物土壤结皮研究论文在总量上优势明显,但高质量论文不多;国际生物土壤结皮研究的主要研究热点集中在腾格里沙漠等沙漠地区,氮循环研究和微生物群落研究是研究的重点。