bims-evares Biomed News
on Evaluation of research
Issue of 2021‒05‒09
forty-two papers selected by
Thomas Krichel
Open Library Society

  1. J Indian Assoc Pediatr Surg. 2021 Jan-Feb;26(1):26(1): 6-10
      Bibliometric analysis identifies the most influential manuscripts that shape our understanding of various congenital gastrointestinal pathologies. This study sets out to analyse the 100 most cited manuscripts on congenital gastrointestinal surgery. The Thomson Reuters Web of Science database was searched for all manuscripts relevant to paediatric congenital gastrointestinal surgery. The number of citations, authorship, publication date, journal of publication, institution and country were recorded for each paper. Eigenfactor and impact factor rankings were obtained for each journal of publication. 971 eligible manuscripts were returned by the search. Within the top 100 manuscripts, the most cited paper (by Metkus et al.) investigated fetal diaphragmatic hernia and was cited 413 times. University of Indianapolis had the most publications (n=5) and Journal of Pediatric Surgery had the most citations (n=3231). The country with the most publications in top 100 were the USA (n=39). The most commonly published topics were diaphragmatic hernia (n=23), abdominal wall defect (n=20) and atresia (n=6). The most cited manuscripts include various topics with a primary focus on the aetiology, diagnosis, management and outcome of diaphragmatic hernia and abdominal wall defects. Additionally, by collecting the most influential works, this study serves to reference what makes a manuscript 'citable'.
    Keywords:  Abdominal; bibliometric analysis; citations; congenital; pediatric surgery
  2. J Clin Transl Sci. 2020 May 08. 5(1): e4
      We analyzed the publication productivity supported by the Puerto Rico Consortium for Clinical and Translational Research (PRCTRC) using the structured process of scientometrics. The objective of this study was to evaluate the impact of the research and collaborations as presented in publications. Manuscripts published from 2010 to 2018 and that had the PRCTRC award number and a PMCID number were retrieved from the Science Citation Index database. Scientometric indicators included h-index (HI), average citation (AC), collaboration coefficient (CC), collaboration index (CI), and degree of collaboration (DC) analysis, and relative citation ratio (RCR) was done with Web of Science Platform, iCite, and Stata software. Joinpoint Trend Analysis Software was used to calculate the annual percent change (APC). From 2010 to 2018, 341 publications were identified with an average of 38 publications per year and a total of 3569 citations excluding self-citations. A significant growth (APC: 17.76%, P < 0.05) of scientific production was observed. The overall HI was 31, and the AC per item was 11.04. The overall CC was 0.82, the CI was 8.59, and the DC was 99.1%. This study demonstrates a statistically significant increase in the PRCTRC scientific production. Results allow for the assessment of the progress resulting from the provided support and to plan further strategies accordingly.
    Keywords:  Metrics; citations; collaborations; publications; scientometrics
  3. Rev Bras Ortop (Sao Paulo). 2021 Apr;56(2): 154-160
      Objective  To outline the profile of self-citations from Revista Brasileira de Ortopedia (Rev Bras Ortop) and citations of this journal in other medical orthopaedic journals with general or specific content in a knowledge area of the specialty. Methods  This is an observational cross-sectional study of the frequency of self-citations and citations from Rev Bras Ortop in five other medical orthopaedic journals from different countries, all published in English. The last 15 articles published in 2020 in each of the six journals were analyzed. The references used in each of them were evaluated to identify the journal in which they were originally published. The frequency of distribution of the four main journals cited, their position, and the relative percentage to the total number of citations were observed and recorded in each of the six journals. The number of times that the Rev Bras Ortop was cited in each of the selected foreign journals was assessed using its absolute and relative frequencies. Results  The total number of citations evaluated in this study was 2,527 (ranging from 386 to 486 per magazine). Rev Bras Ortop showed a low rate of self-citation (2.6%), being the sixth journal cited in the journal itself (10 out of a total of 386 references). Moreover, Rev Bras Ortop was not mentioned in any of the other five medical journals included in the study (absolute frequency 0, relative frequency 0). Conclusion  Rev Bras Ortop has a low reference of itself, with a self-citation rate of 2.6% in the studied period, showing that the Brazilian orthopaedic surgeons do not mention the Brazilian orthopaedic surgeon who publishes in the journal. We suggest the elaboration and implementation of strong strategies to improve the journal's visibility in the world academic-scientific scenario. In addition, it is essential that Brazilian orthopaedic surgeons understand this reality and assist directly and effectively to change this scenario.
    Keywords:  database; journal article; journal impact factor; peer review; research
  4. Int J Dent. 2021 ;2021 5510209
      Objective: To perform a bibliometric analysis of the national scholarly output of all dental schools in Peru in Scopus through a retrospective study after the promulgation of the Peruvian University Law 30220 in 2014.Methods: This was a descriptive, comparative, retrospective, and cross-sectional study. A search of the Scopus database was performed to identify scholarly output in dentistry between 2014 and 2019. A total of 287 scientific articles with affiliation with the dental faculties of Peruvian public and private universities were evaluated. The data was extracted from Scopus using a complex formula developed from the words of the thesaurus MeSh (Medline) and Emtree (base) with words related to dentistry combined with the AF-IDs of the Peruvian universities.
    Results: The Top 10 in the scholarly output of all the Peruvian public and private dental schools were as follows: firstly, the Universidad Peruana Cayetano Heredia (UPCH), with 79 scholarly outputs publications and 5.2 citations per article, followed by the Universidad Nacional Mayor de San Marcos (UNMSM) with 53 scholarly outputs publications and 2.6 citations per article, and in third place, the Universidad Cientifica del Sur (UCSUR) with 49 scholarly outputs publications. In general, it was found that, of the 30 Faculties of Dentistry in Peru, only 10 in the public and private universities have a scholarly output greater than 5 to belong to the top 10. In addition, it was found that, according to the share of publications per journal quartile by the CiteScore Percentile of all the public and private Peruvian Faculties of Dentistry, in 2019, it presented the highest number of scientific publications in all quartiles with 20,33,14 and 43 articles in the quartiles Q1, Q2, Q3, and Q4, respectively. The highest number of scientific publications was produced in 2019 with 20, 33, 14, and 43 articles in quartiles Q1, Q2, Q3, and Q4, respectively.
    Conclusion: The UPCH, UNMSM, and UCSUR dental schools were the most productive. Both public and private universities presented an evident increase in their scientific publications in Scopus after the promulgation of the University Law 30220 in 2014.
  5. Quant Imaging Med Surg. 2021 May;11(5): 1854-1869
      Background: As magnetic resonance angiography (MRA) has been increasingly used in the follow-up of intracranial aneurysms (IAs) as a non-invasive technique, the knowledge framework and areas of research interest in intracranial aneurysms magnetic resonance angiography (IAMRA) change approximately every 10 years. However, few studies have quantitatively analyzed the published literature in this field. In the present study, we used scientometrics to survey the knowledge field, development trends, and research focus of IAMRA with the aim of providing a reference for further study.Methods: We collected articles on IAMRA published from 2004 (Jan 1, 2004) to 2020 (May 24, 2020). Web of Science Core Collection databases (WoSCCd) including the Science Citation Index Expanded were searched. An experienced staff member from the Department of Radiology at Southern Medical University, assisted in screening articles for relevant articles. We used ArcGIS (a mapping and location analytics platform) to perform geographic visualization. Excel 2016 was used to analyze the literature data, including number of publications, impact factor (IF), and publication year. CiteSpace V was used to conduct a series of literature feature clustering, including author co-citation analysis, reference co-citation analysis (RCA), and burst keywords analysis.
    Results: A total of 1,272 articles on IAMRA published between 2004 and 2020 were included. Of 257 journals, American Journal of Neuroradiology (IF 2018: 3.256) published the most IAMRA articles (109 publications, 8.57%), followed by Journal of Neurosurgery (IF 2018: 4.131, 51 publications, 4.16%), and Neuroradiology (IF 2018: 2.504, 51 publications, 4.01%). Of 56 countries, the USA published the most, with 347 articles [27.28%, IF: 3.14 (average IF of all journals in the country)], followed by Japan (242 articles, 19.03%, IF: 2.38), Germany (135 articles, 10.61%, IF: 3.21), and China (101 articles, 7.94%, IF: 2.86). A total of 1387 institutions published articles, with the Mayo Clinic publishing the most (33 articles, 2.59%), followed by Shanghai Jiao Tong University (25 article, 1.97%), Seoul National University (23 articles, 1.81%), and University Medical Center Utrecht (19 articles, 1.49%). Of 399 authors, Rinkel ranked first with 19 articles, followed by Li MH (18 articles), Uchino A (15 articles), and Saito N (13 articles). Cluster RCA showed that the first cluster was "#0 growth", followed by "#1 Guglielmi detachable coils". Timeline views showed that the time span of "#0 growth" was the closest to today. The modularity value was 0.6971, and the mean silhouette value was 0.5477. According to the burst keyword analysis, "risk factors associated to rupture" was the topic with the strongest burst since 2017. Studies conducted in several countries suggested that age is inversely related to the risk of rupture, which implies the importance of MRA follow-up for patients of different age.
    Conclusions: From 2004 to 2020, the number of published IAMRA-related articles gradually increased. The USA and Western Europe lead in the field, with a concentration of cutting-edge talents and high-level scientific research institutions. A synthesis of the clustering results of RCA and burst keyword analysis indicated that unruptured IA growth, stent-assisted coil embolization, and risk factors associated to rupture were the current hotspots in IAMRA research.
    Keywords:  CiteSpace; Intracranial aneurysms (IA); bibliometrics; co-citation analysis; magnetic resonance angiography (MRA)
  6. Hum Vaccin Immunother. 2021 May 04. 1-9
      Introduction: Rabies is an infectious zoonotic viral disease which mainly occurs in Africa and Asia. Dogs are predominantly responsible for rabies transmission contributing up to 99% of all human rabies cases. Rabies is a vaccine preventable disease in both animals and humans.Objective: This study aimed to quantify and characterize the scientific literature and identify the top most cited studies in rabies vaccine research (RVR) from 1991 to 2020.Methods: The data used in this study were downloaded from Web of Science Core Collection (WoSCC), Science Citation Index-Expanded (SCI-E) database. Network visualization analysis was performed using VOSviewer software.Results: A total of 1,042 papers (article: n = 986, 94.6%, review: n = 56, 5.4%) were included in this study. These have been cited 17,390 times with an average citation per paper was 16.69 times. The most frequent publication year was 2019 (n = 75, 7.2%). More than 55% studies were published from the United State of America (USA) (n = 380, 36.5%), France (n = 128, 12.3%), and China (n = 97, 9.3%). The most studied Web of Science (WoS) category was immunology (n = 344, 33%). The most prolific author in RVR was Rupprecht CE (n = 55, 5.3%). 'Vaccine' was the leading journal (n = 218, 20.9%). Rabies was the most widely used keyword.Conclusion: Abundant literature has been published on RVR in developed countries. This study might provide a reference to understand the current and future research trends in RVR. In developing countries research collaboration and co-operation among institutes and researchers needs to be strengthened with developed countries.
    Keywords:  Rabies; bibliometric analysis; vaccine
  7. Ren Fail. 2021 Dec;43(1): 781-795
      BACKGROUND: Tremendous scientific researches have been conducted in the field of diabetic kidney disease (DKD), while few bibliometric analyses have been performed. We aim to identify 100 top-cited published articles about DKD and analyze their main characteristics quantitatively.METHODS: Web of Science was searched with the term 'diabetic kidney disease' OR 'diabetic nephropathy' to identify the top 100 most cited articles. For articles meeting the predefined criteria, the following data were extracted and analyzed: citation ranking, publication year, publication journal, journal impact factor, country and institution, authors, study type, and keywords.
    RESULTS: The highest number of citations was 4753 times. The median average citations per year was 21.8 (IQR, 16.6-33.0). Most articles focused on the pathogenesis and treatment. These articles were published in 25 different journals and the Journal of the American Society of Nephrology published the greatest number (20%). Forty-three articles (43%) originated from the United States. The University of Groningen was the leading institute, contributing five top-cited articles. The most frequent first author was de Zeeuw (n = 4), followed by Parving (n = 3). There was no correlation between the average citations and the number of authors, the number of institutes, or the number of funds, respectively. Experimental animal study was the research type most frequently conducted (n = 30), followed by observational study (n = 24). Keyword analysis revealed transforming growth factor-β, oxidative stress, proteinuria, and renin-angiotensin-aldosterone system interruption are classic research topics. Sodium-glucose cotransporter 2 inhibitors, glucagon-like peptide 1 receptor agonists, and anti-inflammatory agents are the emerging trends of DKD.
    CONCLUSIONS: This bibliometric analysis helps in identifying the milestones, inadequacies, classic hotspots, and emerging trends of DKD. Pathogenesis and treatment are core themes in DKD research, while high-quality articles on the prediction and biomarker are insufficient. New analyzing metrics are needed to assess the actual impact of these top-cited articles on clinical practice.
    Keywords:  Bibliometric analysis; citation analysis; diabetic kidney disease; top cited
  8. Minerva Pediatr (Torino). 2021 May 05.
      BACKGROUND: To make a holistic, comprehensive analysis of scientific publications on the subject of vesicoureteral reflux (VUR) between 1980 and 2019 using bibliometric methods, and by determining global research trends, to establish an important resource for future studies.METHODS: All the scientific documents were accessed which had the key word "vesicoureteral reflux" in the "Title" section in the Web of Science (WoS) database between 1980 and 2019. Using bibliometric methods, articles related to VUR (access date:20.08.2020) were analyzed. VOS viewer software was used to visualize the bibliometric network.
    RESULTS: A total of 2549 publications related to VUR were identified in literature, of which 1387 were articles. There was observed to be a generally increasing trend in the number of articles. According to the results of the regression analysis, the number of articles is expected to increase to 54 in 2020, and to 63 by 2029. The 5 most productive countries were seen to be the USA, Turkey, Japan, Italy and Germany. The 5 journals contributing most to the literature were the Journal of Urology (397), Urology (86), Journal of Pediatric Urology (75), Pediatric Nephrology (64) and European Urology (37).
    CONCLUSIONS: The number of publications on the subject of VUR is expected to continue increasing in the next 10 years. This study, which has provided a detailed and comprehensive analysis of articles related to VUR, can be considered a useful guide for future studies by physicians and researchers.
  9. J Indian Assoc Pediatr Surg. 2021 Jan-Feb;26(1):26(1): 23-26
      Aim: The objective was to identify, analyze, and categorize the characteristics (the type of article, country of origin, institution, authorship, topic, and the number of citations) of the articles published in the Journal of Indian Association of Pediatric Surgeons (JIAPS) from 2008 to 2017, with particular focus on the top ten-cited articles.Materials and Methods: The above characteristics of the individual articles were tabulated in the Microsoft Excel® sheet. The number of citations of an article was obtained from three databases (CrosssRef, MEDLINE, and Google Scholar). A final tally was obtained after removing common entries in the databases.
    Results: The total number of articles published was 613. There were 255 case reports, 209 original articles and review articles, and 149 brief communications. The top five countries of origin of the articles were India, United Kingdom (UK), Turkey, Iran, and Saudi Arabia, with 526, 14, 9, 7, and 6 articles, respectively. The institution, authorship, and topics of the top ten-cited articles were noted.
    Conclusion: Case reports are the most common type of articles published in JIAPS. Most of the articles originated from India, followed by the UK and middle-east countries. This analysis may provide insights to the editorial board and the members of IAPS about the trend of research and publications among the pediatric surgeons of India.
    Keywords:  Bibliometrics; citation; pediatric surgery
  10. Hum Vaccin Immunother. 2021 May 04. 1-9
      Objective: A bibliometric analysis was conducted to build an all-inclusive view of the status of research on hepatitis A virus (HAV) for facilitating researchers, health professionals, and policymakers to understand the characteristics of research output in this particular domain.Methods: A comprehensive search was conducted in the Web of Science database. The obtained data were exported into Microsoft Excel 2019, OriginPro 2018 and VOSviewer software for windows.Results: From 1985 to 2019, a total of 5,950 studies on HAV were published, with an overall h-index of 105, and 90,350 total citations. The most cited article on HAV was "Classification of chronic viral hepatitis: a need for reassessment" authored by Scheuer in the Journal of Hepatology with a total of 1,121 citations. The most cited article on HAV vaccine was "A controlled trial of a formalin-inactivated hepatitis A vaccine in healthy children" by Werzberger et al. in the New England Journal of Medicine with 401 citations. The most frequent year of publication was 2019 (n = 250). The largest number of studies were funded by the United States Department of Health Human Services (n = 199). The organization with the highest number of publications was the United States Centers for Disease Control and Prevention (n = 228). The United State of America (n = 1,500) was the country with the most publications. 'Vaccine' was the leading journal with 299 publications.Conclusions: The highest numbers of studies were published in developed countries. There is a clear need for interdisciplinary research approaches to evaluate and intervene in HAV endemic areas.
    Keywords:  Hepatitis A virus; VOSviewer software; bibliometric analysis; vaccine
  11. BMC Med Inform Decis Mak. 2021 May 03. 21(1): 144
      BACKGROUND: Network meta-analysis (NMA) has been widely used in the field of medicine and health, but the research topics and development trends are still unclear. This study aimed to identify the cooperation of countries and institutes and explore the hot topics and future prospects in the field of NMA.METHODS: Data of publications were downloaded from the Web of Science Core Collection. We used CiteSpace V, HistCite 2.1, and Excel 2016 to analyze literature information, including years, journals, countries, institutes, authors, keywords, and co-cited references.
    RESULTS: NMA research developed gradually before 2010 and rapidly in the following years. 2846 NMA studies were published in 771 journals in six languages. The PLoS One (110, 3.9%) was the most productive journal, and N Engl J Med (5904 co-citations) was the most co-cited journal. The most productive country was the United States (889, 31%) and the most productive institute was the University of Bristol (113, 4.0%). The active collaborations were observed between developed countries and between productive institutes. Of the top 10 authors, four were from the UK, and among the top 10 co-cited authors, six were from the UK. Randomized evidence, oral anti-diabetic drugs, coronary artery bypass, certolizumab pegol, non-valvular atrial fibrillation, and second-line antihyperglycemic therapy were the hot topics in this field.
    CONCLUSIONS: NMA studies have significantly increased over the past decade, especially from 2015 to 2017. Compared with developing countries, developed countries have contributed more to these publications and have closer cooperation, indicating that cooperation between developed and developing countries should be further strengthened. The treatment of diabetes, cardiovascular diseases, and immune rheumatism are the main hot topics.
    Keywords:  Bibliometric analysis; CiteSpace; Development trends; Hotspots; Network meta-analyses; Web of Science
  12. Front Pharmacol. 2021 ;12 668714
      Purpose: We used bibliometric methods to evaluate the global scientific output of research on Piezo channels and explore the current status and trends in this field over the past decade. Methods: Piezo channel-related studies published in 2010-2020 were retrieved from Web of Science. The R bibliometrix package was used for quantitative and qualitative analyses of publication outputs and author contributions. VOSviewer was used to construct networks based on co-authorship of countries/institutions/authors, co-citation analysis of journals/references, citation analysis of documents, and co-occurrence of keywords. Results: In total, 556 related articles and reviews were included in the final analysis. The number of publications has increased substantially with time. The country and institution contributing the most to this field was the United States and Scripps Research Institute, respectively. Ardem Patapoutian was the most productive author and ranked first among the cited authors, h-index, and m-index. The top cited reference was the article published by Coste B et al. in Science (2010) that identified Piezo1/2 in mammalian cells. The top journals in terms of the number of selected articles and citations were Nature Communications and Nature, respectively. The co-occurrence analysis revealed that Piezo channels are involved a variety of cell types (Merkel cells, neurons, endothelial cells, red blood cells), physiological processes (touch sensation, blood pressure, proprioception, vascular development), related ion channels (transient receptor potential, Gardos), and diseases (pain, distal arthrogryposis, dehydrated hereditary stomatocytosis, cancer), and pharmacology (Yoda1, GsMTx-4). Conclusion: Our bibliometric analysis shows that Piezo channel research continues to be a hotspot. The focus has evolved from Piezo identification to architecture, activation mechanism, roles in diseases, and pharmacology.
    Keywords:  Piezo channels; VOSviewer; bibliometric analysis; co-authorship analysis; co-citation analysis; co-occurrence analysis; web of science
  13. J Cancer Surviv. 2021 May 04.
      PURPOSE: To provide an analysis of papers published by the Journal of Cancer Survivorship (JCSU) from March 1, 2007 (its inception) until December 31, 2020.METHODS: Characteristics (locations, study type, cancer type, keywords assigned by original authors) of all included articles were extracted into EndNote X9 and were coded and analyzed using Excel, NVivo v.R1.3 and VOSviewer, v.1.616. Journal Impact Factor and citation counts of each manuscript were downloaded from Clarivate Journal Citation Reports and Scopus®, respectively.
    RESULTS: Published papers are predominantly from the USA, Australia, and the UK. While breast cancer continues to be the dominant cancer type, a range of different cancer types and populations with mixed-cancer types have been addressed in the journal. Cross-sectional designs were the most used. JCSU's impact factor experienced a steady growth between 2011 and 2015 and stabilized over recent years (2016-2020), at 3.296 (1 year) and 3.830 (5 years). Keyword co-occurrence analyses indicated prominent themes including quality of life, physical activity, late effects, follow-up care, and psychosocial aspects of cancer survivorship.
    CONCLUSIONS: JCSU has made a significant contribution thus far by disseminating knowledge in cancer survivorship. This paper provides insights of JCSU's success to date and recommends further diversification and directions for practice areas that are novel or have received less attention by the cancer survivorship community.
    IMPLICATIONS FOR CANCER SURVIVORS: This journal stands ready to publish new information that informs the cancer survivorship community on the multidimensional nature of cancer and facilitates translation into quality care across many different settings and across the globe.
    Keywords:  Cancer survivorship; Impact; Keyword co-occurrence analysis; Neural network analysis; Publishing
  14. Sci Total Environ. 2021 Jun 15. pii: S0048-9697(21)00696-3. [Epub ahead of print]773 145628
      In recent decades, the potential toxicological and environmental effects of organic ultraviolet filters (OUVF) have received growing attention. The number of studies in this area has increased; however, presently there is no scientometric perspective addressing this topic. The purpose of this study is to identify the intellectual base and research front using the visualization and analysis software, CiteSpace. We retrieved 453 articles, published in print or online as an early-access article between 2002 and 2020, from the Web of Science with a topic search related to OUVFs, environment, and toxicology. We then analysed synthesized networks of co-authorship (author, institution, country), co-citation (author, document, journal) and co-occurring keywords. The annual publication output has trended upwards since 2002. Authors based in China accounted for 29.4% of the total publications, followed by USA (17.4%); but overall publications from Switzerland and Spain were more influential. Major research themes identified included OUVF concentrations in aquatic environments, and hormonal effects. Emerging themes included improving the sensitivity of analytical detection methods for both OUVFs and their metabolites, consequences of OUVF transport to the marine environment, and concerns over prenatal exposure. Based on keyword analysis, benzophenone-3, 4-methylbenzylidene-camphor, 3-benzylidene camphor, and ethylhexyl-methoxycinnamate are the most studied OUVFs, and effects on estrogenic activity, gene expression, reproduction, and more recently, oxidative stress, have received most attention from a toxicological perspective. Other prominent topics were sources of environmental contamination and ecological risk assessments. This study maps the major research domains of OUVF environmental toxicology research; explanations and implications of the findings are discussed; and emerging trends highlighted.
    Keywords:  Benzophenone; Bibliometrics; Emerging pollutant; Sunscreen; UV filter; UV light stabilizer
  15. J Clin Transl Sci. 2020 Jul 24. 5(1): e24
      Introduction: Evaluating clinical and translational research (CTR) mentored training programs is challenging because no two programs are alike. Careful selection of appropriate metrics is required to make valid comparisons between individuals and between programs. The KL2 program provides mentored-training for early-stage CTR investigators. Clinical and Translational Awards across the country have unique KL2 programs. The evaluation of KL2 programs has begun to incorporate bibliometrics to measure KL2 scholar and program impact.Methods: This study investigated demographic differences in bibliometric performance and post-K award funding of KL2 scholars and compared the bibliometric performance and post-K award federal funding of KL2 scholars and other mentored-K awardees at the same institution. Data for this study included SciVal and iCite bibliometrics and National Institutions of Health RePORTER grant information for mentored-K awardees (K08, K23, and KL2) at Case Western Reserve University between 2005 and 2013.
    Results: Results showed no demographics differences within the KL2 program scholars. Bibliometric differences between KL2 and other mentored-K awardee indicated an initial KL2 advantage for the number of publications at 5 years' post-matriculation (i.e., the start of the K award). Regression analyses indicated the number of initial publications was a significant predictor of federal grant funding at the same time point. Analysis beyond the 5-year post-matriculation point did not result in a sustained, significant KL2 advantage.
    Conclusions: Factors that contributed to the grant funding advantage need to be determined. Additionally, differences between translational and clinical bibliometrics must be interpreted with caution, and appropriate metrics for translational science must be established.
    Keywords:  Bibliometrics; Clinical and Translational Science Award; KL2; career development; translational research
  16. Scientometrics. 2021 Apr 26. 1-8
      The h-index is an indicator of the scientific impact of an academic publishing career. Its hybrid publishing/citation nature and inherent bias against younger researchers, women, people in low resourced countries, and those not prioritizing publishing arguably give it little value for most formal and informal research evaluations. Nevertheless, it is well-known by academics, used in some promotion decisions, and is prominent in bibliometric databases, such as Google Scholar. In the context of this apparent conflict, it is important to understand researchers' attitudes towards the h-index. This article used public tweets in English to analyse how scholars discuss the h-index in public: is it mentioned, are tweets about it positive or negative, and has interest decreased since its shortcomings were exposed? The January 2021 Twitter Academic Research initiative was harnessed to download all English tweets mentioning the h-index from the 2006 start of Twitter until the end of 2020. The results showed a constantly increasing number of tweets. Whilst the most popular tweets unapologetically used the h-index as an indicator of research performance, 28.5% of tweets were critical of its simplistic nature and others joked about it (8%). The results suggest that interest in the h-index is still increasing online despite scientists willing to evaluate the h-index in public tending to be critical. Nevertheless, in limited situations it may be effective at succinctly conveying the message that a researcher has had a successful publishing career.
    Keywords:  H-index; Research evaluation; Research management; Twitter; Twitter academic research
  17. PLoS One. 2021 ;16(5): e0251176
      INTRODUCTION: In academia, many institutions use journal article publication productivity for making decisions on tenure and promotion, funding grants, and rewarding stellar scholars. Although non-alphabetical sequencing of article coauthoring by the spelling of surnames signals the extent to which a scholar has contributed to a project, many disciplines in academia follow the norm of alphabetical ordering of coauthors in journal publications. By assessing business academic publications, this study investigates the hypothesis that author alphabetical ordering disincentivizes teamwork and reduces the overall quality of scholarship.METHODS: To address our objectives, we accessed data from 21,353 articles published over a 20-year period across the four main business subdisciplines. The articles selected are all those published by the four highest-ranked journals (in each year) and four lower-ranked journals (in each year) for accounting, business technology, marketing, and organizational behavior. Poisson regression and binary logistic regression were utilized for hypothesis testing.
    RESULTS: This study finds that, although team size among business scholars is increasing over time, alphabetical ordering as a convention in journal article publishing disincentivizes author teamwork. This disincentive results in fewer authors per publication than for publications using contribution-based ordering of authors. Importantly, article authoring teamwork is related to article quality. Specifically, articles written by a single author typically are of lesser quality than articles published by coauthors, but the number of coauthors exhibits decreasing returns to scale-coauthoring teams of one to three are positively related to high-quality articles, but larger teams are not. Alphabetical ordering itself, however, is positively associated with quality even though it inhibits teamwork, but journal article coauthoring has a greater impact on article quality than does alphabetical ordering.
    CONCLUSIONS: These findings have important implications for academia. Scholars respond to incentives, yet alphabetical ordering of journal article authors conflicts with what is beneficial for the progress of academic disciplines. Based on these findings, we recommend that, to drive the highest-quality research, teamwork should be incentivized-all fields should adopt a contribution-based journal article author-ordering convention and avoid author ordering based upon the spelling of surnames. Although this study was undertaken using articles from business journals, its findings should generalize across all academia.
  18. Sci Total Environ. 2021 Apr 27. pii: S0048-9697(21)02433-5. [Epub ahead of print]785 147362
      The present study has two primary goals, the first goal is to investigate a bibliometric analysis and assess the trends to evaluate the global scientific production of microbubbles and nanobubbles from 2000 to 2020. The aim is to elucidate the cornucopia of benefits the two technologies (micro and nanobubbles) can offer in environmental sciences and environmental amelioration such as wastewater treatment, seed germination, separation processes, etc. The second goal is to explicate the reason behind every chart and trend through environmental engineering perspectives, which can confer value to each analysis. The data was acquired from the Web of Science and was delineated by VOS viewer software and GraphPad Prism. Considering 1034 publications in the area of micro-and nanobubbles, this study was conducted on four major aspects, including publication growth trend, countries contribution assessment, categories, journals and productivity, and keywords co-occurrence network analysis. This article revealed a notable growth in microbubbles and nanobubbles-related publications and a general growth trend in published articles in a 20-year period. China had the most significant collaboration with other countries, followed by the USA and Japan. The most dominant categories for microbubbles were environmental sciences and environmental engineering comprising 22.5% of the total publications, while multidisciplinary subjects such as nanotechnology and nanosciences (8%) were among the dominant categories for nanobubbles. Keyword's analysis results showed that microbubbles had reached the apex since their discovery. Consequently, they are being used mostly in water/wastewater treatment or environmental improvement. On the other hand, nanobubbles are still in their infancy, and their pervasive use is yet to be fully materialized. Most of the publications are still striving to understand the nature of nanobubbles and their stability; however, a critical analysis showed that during the past two years, the trend of using nanobubbles as a cost-effective and environmentally friendly approach has already begun.
    Keywords:  Micro-nanobubble aeration; Microbubbles; Nanobubbles; Research trend; Treatment technologies; VOS viewer
  19. Biomed Res Int. 2021 ;2021 6634055
      Background: We conducted a bibliometrics analysis to explore the recent trends in dental implant research which could help researchers have a clear grasp of the relevant research hotspots and prospects. Material and Methods. Altogether, 15,770 articles on dental implants, from January 1, 2010, to October 31, 2019, were selected from the Web of Science Core Collection. We used BICOMB software to extract the high-frequency MeSH terms and construct binary and coword matrices. gCLUTO software was used for biclustering and visual analysis, Ucinet 6 software for social network analysis, SCIMAT software for strategic diagram building, Citespace 5.5 software to form timeline visualization, and VOSviewer software, eventually, for bibliometrics cocitation network.Results: Altogether, 72 high-frequency keywords were extracted from the selected articles and 4 clusters and 7 subcategories were identified through biclustering analysis in the dental implant research field. The use of the strategic diagram also enabled us to find the research hotspot and development trends.
    Conclusions: The survival rate of dental implants and subsequent restoration have always been the core focus of research. Sinus floor elevation and guided bone regeneration are worthy of constant exploration owing to their reliability. With continuous improvement in technology, immediate loading could become a future research hot spot.
  20. BMJ Open. 2021 May 06. 11(5): e045101
      OBJECTIVES: Though multidisciplinary research networks support the practice and effectiveness of continuous quality improvement (CQI) programmes, their characteristics and development are poorly understood. In this study, we examine publication outputs from a research network in Australian Indigenous primary healthcare (PHC) to assess to what extent the research network changed over time.SETTING: Australian CQI research network in Indigenous PHC from 2002 to 2019.
    PARTICIPANTS: Authors from peer-reviewed journal articles and books published by the network.
    DESIGN: Coauthor networks across four phases of the network (2002-2004; 2005-2009; 2010-2014; 2015-2019) were constructed based on author affiliations and examined using social network analysis methods. Descriptive characteristics included organisation types, Indigenous representation, gender, student authorship and thematic research trends.
    RESULTS: We identified 128 publications written by 308 individual authors from 79 different organisations. Publications increased in number and diversity over each funding phase. During the final phase, publication outputs accelerated for organisations, students, project officers, Indigenous and female authors. Over time there was also a shift in research themes to encompass new clinical areas and social, environmental or behavioural determinants of health. Average degree (8.1), clustering (0.81) and diameter (3) indicated a well-connected network, with a core-periphery structure in each phase (p≤0.03) rather than a single central organisation (degree centralisation=0.55-0.65). Academic organisations dominated the core structure in all funding phases.
    CONCLUSION: Collaboration in publications increased with network consolidation and expansion. Increased productivity was associated with increased authorship diversity and a decentralised network, suggesting these may be important factors in enhancing research impact and advancing the knowledge and practice of CQI in PHC. Publication diversity and growth occurred mainly in the fourth phase, suggesting long-term relationship building among diverse partners is required to facilitate participatory research in CQI. Despite improvements, further work is needed to address inequities in female authorship and Indigenous authorship.
    Keywords:  health policy; primary care; quality in health care
  21. Appl Nurs Res. 2021 Jun;pii: S0897-1897(20)30195-6. [Epub ahead of print]59 151334
      This paper, for the first time, performs a bibliometric review on work-family conflict focusing on job satisfaction and intention to quit since the inception of this concept in 1994. For analysis and graphical presentation, bibliometrix package in R software and VOSviewer software are used. Total 146 documents from Scopus database are examined in this study. The results from the analysis reveal that the number of publications on work-family conflict is recently in an ascending growth that can be characterized by low productivity, low average citations per document and rising collaboration among authors. The growth of work-family conflict literature began to increase from 2003 and the International Journal of Human Resource Management and Journal of Vocational Behaviour played significant roles. Future research areas have been identified from the results of thematic map, trend topics, bibliometric coupling, three-fields plot and co-occurrence network. It is revealed from development of topics in this literature that pay satisfaction, occupational differences, effects of burnout and organizational politics has potential literature gaps. In addition, the examination of highlighted theories and methods used in previous literature contributing in different industries shall be the propitious areas of future research apart from other research agenda as identified in this study.
    Keywords:  Bibliometric analysis; Intention to quit; Job satisfaction; Work-family conflict
  22. Hum Vaccin Immunother. 2021 May 03. 1-7
      Vaccine hesitancy is a phenomenon where individuals delay or refuse to take some or all vaccines. The objective of this study was to conduct a global bibliometric analysis of research productivity and identify country level indicators that could be associated with publications on vaccine hesitancy. We searched PubMed and Web of Science for publications from 1974 to 2019, and selected articles focused on behavioral and social aspects of vaccination. Data on country-level indicators were obtained from the World Bank. We used Spearman's correlation and zero-inflated negative-binomial regression models to ascertain the association between country level indicators and the number of publications. We identified 4314 articles, with 1099 eligible for inclusion. The United States of America (461 publications, 41.9%), Canada (84 publications, 7.6%) and the United Kingdom (68 publications, 6.2%) had the highest number of publications. Although various country indicators had significant correlations with vaccine hesitancy publications, only gross domestic product (GDP) and gross national income (GNI) per capita were independent positive predictors of the number of publications. When the number of publications were standardized by GDP, the Gambia, Somalia and Malawi ranked highest in decreasing order. The United States, Canada and United Kingdom ranked highest (in that order) when standardized by current health expenditure. Overall, high-income countries were more productive in vaccine hesitancy research than low-and-middle-income countries. There is a need for more investment in research on vaccine hesitancy in low-and-middle-income countries.
    Keywords:  Vaccine hesitancy; bibliometric analysis; country level indicators; research productivity
  23. Environ Sci Pollut Res Int. 2021 May 07.
      Bees are fundamental insects in agroecosystems, mainly due to pollination. However, its decline has been observed in recent years, and the contamination by pesticides is suspected to be responsible. This relationship is the objective of our research, which is the first scientometric study on this subject. The data were obtained from the Web of Science database (1231) and were analyzed using Microsoft Office Excel and CiteSpace. The results point to a significant increase in pesticide and bee reseach in the last 15 years in the most influential scientific journals. The USA and France have the largest number of publications and a moderade relationship between this trait and GDP (gross domestic product) was observed (r = 0.80; r2 = 0.60). There is no correlation between the use of pesticides and studies of the effects on pollinators and the use of pesticides and the countries' GDP. In general, studies have shown the negative effects of the contamination by pesticides on bees; however, most publications are with bees of the Apis genus, and therefore it is necessary to explore the action of pesticides on bumble bees and wild bees, as well furthur as studies are needed regarding the sublethal effects of these products on bees as the number of molecules used in the management of agricultural crops is vast.
    Keywords:  Pollination. Environmental. Honey bee. Toxicity. Insecticide. CiteSpace
  24. Front Psychol. 2021 ;12 601849
      The American Educational Research Association and American Psychological Association published standards for reporting on research. The transparency of reporting measures and data collection is paramount for interpretability and replicability of research. We analyzed 57 articles that assessed alphabet knowledge (AK) using researcher-developed measures. The quality of reporting on different elements of AK measures and data collection was not related to the journal type nor to the impact factor or rank of the journal but rather seemed to depend on the individual author, reviewers, and journal editor. We propose various topics related to effective reporting of measures and data collection methods that we encourage the early childhood and literacy communities to discuss.
    Keywords:  alphabet knowledge; emergent literacy; evaluation; letter knowledge; research methodology
  25. PLoS One. 2021 ;16(5): e0250086
      BACKGROUND: Applied epidemiological models are used in predicting future trends of diseases, for the basic understanding of disease and health dynamics, and to improve the measurement of health indicators. Mapping the research outputs of epidemiological modelling studies concerned with transmission dynamics of infectious diseases and public health interventions in Africa will help to identify the areas with substantial levels of research activities, areas with gaps, and research output trends.METHODS: A scoping review of applied epidemiological models of infectious disease studies that involved first or last authors affiliated to African institutions was conducted. Eligible studies were those concerned with the transmission dynamics of infectious diseases and public health interventions. The review was consistent with the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) extension for scoping reviews. Four electronic databases were searched for peer-reviewed publications up to the end of April 2020.
    RESULTS: Of the 5927 publications identified, 181 met the inclusion criteria. The review identified 143 publications with first authors having an African institutional affiliation (AIA), while 81 had both first and last authors with an AIA. The publication authors were found to be predominantly affiliated with institutions based in South Africa and Kenya. Furthermore, human immunodeficiency virus, malaria, tuberculosis, and Ebola virus disease were found to be the most researched infectious diseases. There has been a gradual increase in research productivity across Africa especially in the last ten years, with several collaborative efforts spread both within and beyond Africa.
    CONCLUSIONS: Research productivity in applied epidemiological modelling studies of infectious diseases may have increased, but there remains an under-representation of African researchers as leading authors. The study findings indicate a need for the development of research capacity through supporting existing institutions in Africa and promoting research funding that will address local health priorities.
  26. Health Serv Manage Res. 2021 May 07. 9514848211011738
      Medical tourism is an expanding phenomenon. Scientific studies address the changes and challenges of the present and future trend. However, no research considers the study of bibliometric variables and area of business, management and accounting. This bibliometric analysis discovered the following elements: (1) The main articles are based on guest services, management, leadership principles applied, hotel services associated with healthcare, marketing variables and elements that guide the choice in medical tourism; (2) The main authors do not deal with tourism but are involved in various ways in the national health system of the countries of origin or in WHO; (3)cost-efficiency and analytical accounting linked to medical tourism structures and destination choices are not yet developed topics.
    Keywords:  bibliometrix; biblioshiny; medical tourism; medical tourism agenda; medical tourism management
  27. J Vasc Interv Radiol. 2021 05;pii: S1051-0443(21)00923-4. [Epub ahead of print]32(5): 643-644
  28. J Sex Res. 2021 May 03. 1-8
      Previous researchers have noted the domination of Western, Educated, Industrialized, Rich, and Democratic (WEIRD) samples in fields like psychology. In this study we asked: how WEIRD and androcentric is contemporary sex research? We focused on two historically underrepresented groups in research, namely non-WEIRD and women/gender non-conforming samples. We analyzed 2,223 articles drawn from five leading journals in scientific sexuality research (Archives of Sexual Behavior, Journal of Sex Research, Journal of Sex and Marital Therapy, Journal of Sexual Medicine, and International Journal of Sexual Health). We coded the national context and gender of sampled populations for articles published between 2015 and 2019 in these journals. Results indicated that WEIRD populations dominate the published findings in sex research (ranging from 68% to 88%). Two journals had a higher number of studies that only included men as participants, and one a higher number of samples that consisted of only women, and very few included gender diverse samples (i.e., non-binary, trans*, intersex). Recommendations for improving the current research and publishing practices are discussed.
  29. Nature. 2021 May;593(7857): 30-31
    Keywords:  Funding; Research data; Research management
  30. Environ Sci Pollut Res Int. 2021 May 05.
      Agricultural practices and industrial and human discharges play an important role in the generation of highly contaminated effluents, which becomes a threat to the environment. The persistence of many of these compounds to conventional treatments in recent years has meant that numerous efforts have been devoted to the proposal of new selective materials that allow the removal of these contaminants by adsorption. In addition, bibliometric studies have grown as powerful tools to indicate trends in innovation. In this way, the present study consisted of evaluating the potential interest to use activated carbon as adsorbent through a prospection study in scientific and technological databases. The number of records obtained for the use of activated carbon in effluent remediation processes is equivalent to 4898, which corresponds to approximately 2.5% of the total documents (articles/patents) found for the use of carbon with no defined purpose. A total of 2275 works that used the adsorptive property of activated carbon were recovered. According to the data recovered, Brazil is the leader in scientific publications among Latin American countries and the 12th worldwide, according to the SciELO and Scopus databases, respectively. In general, a significant number of patents have been recovered for this theme, in the Derwent database, 1167 documents were recovered. The results obtained in this work evidenced the growing interest in developing technologies in this area.
    Keywords:  Carbonaceous materials; Pollutant removal; Remediation; Trends; Wastewater
  31. Int J Surg. 2021 May 02. pii: S1743-9191(21)00099-6. [Epub ahead of print] 105965
    Keywords:  Academic metrics; Academic productivity; Academic social networking; Medical education; h-index
  32. Nature. 2021 May;593(7857): 37
    Keywords:  Authorship; Conferences and meetings; Databases; Publishing
  33. Environ Sci Pollut Res Int. 2021 May 06.
      The environment is the most important reservoir for both resistance mechanisms and gene transfer in biological science studies. This study gives a bibliometric overview of studies of "antibiotic resistance" and "Escherichia coli" in the field of "Agricultural and Biological Sciences" from 2015 to 2019 to assess both research trends and scholarly networks in diverse research disciplines. The two keywords of "antibiotic resistance" and "Escherichia coli" were selected to search in the Scopus database. Each review article was categorized into materials, natural waters (i.e., seawater, freshwater) and wastewater, journal name, and quartile in category of the journal, the year of publication, and the country. Bibliometric indicators and visualization maps were utilized to analyse the retrieved data quantitatively and qualitatively. A total of 1376 publications in the field of agricultural and biological sciences over the last 5 years were obtained using the keywords of antibiotic resistance and Escherichia coli. With additional keywords of freshwater and wastewater, 4 and 24 studies were obtained, respectively. Wastewater was found to be the most common working environment for the keywords of antibiotic resistance and Escherichia coli. It is also found that the studies of antibiotic resistance are mainly conducted in wastewater environments, focusing on human and food health. Working under "One Health" consisting of human, animal and agriculture, and environmental health could be the only permanent and effective approach to solving antibiotic resistance-related issues.
    Keywords:  Agricultural and biological sciences; Antibiotic resistance; Escherichia coli; Network visualization; Publication analysis
  34. JAMA Surg. 2021 May 05.
      Importance: Diversity in academic surgery is lacking, particularly among positions of leadership.Objective: To evaluate trends among racial/ethnical minority groups stratified by gender along the surgical pipeline, as well as in surgical leadership.
    Design, Setting, and Participants: This cross-sectional and longitudinal analysis assessed US surgical faculty census data obtained from the Association of American Medical Colleges faculty roster in the Faculty Administrative Management Online User System database. Surgical faculty members captured in census data from December 31, 2013, to December 31, 2019, were included in the analysis. Faculty were identified from the surgery category of the faculty roster, which includes general surgeons and subspecialists, neurosurgeons, and urologists.
    Main Outcomes and Measures: Gender and race/ethnicity were obtained for surgical faculty stratified by rank. Descriptive statistics with annual percentage of change in representation are reported based on faculty rank.
    Results: A total of 15 653 US surgical faculty, including 3876 women (24.8%), were included in the data set for 2019. Female faculty from racial/ethnic minority groups experienced an increase in representation at instructor and assistant and associate professorship appointments, with a more favorable trajectory than male faculty from racial/ethnic minority groups across nearly all ranks. White faculty maintain most leadership positions as full professors (3105 of 3997 [77.7%]) and chairs (294 of 380 [77.4%]). The greatest magnitude of underrepresentation along the surgical pipeline has been among Black (106 of 3997 [2.7%]) and Hispanic/Latinx (176 of 3997 [4.4%]) full professors. Among full professors, although Black and Hispanic/Latinx male representation increased modestly (annual change, 0.07% and 0.10%, respectively), Black female representation remained constant (annual change, 0.00004%) and Hispanic/Latinx female representation decreased (annual change, -0.16%). Overall Hispanic/Latinx (20 of 380 [5.3%]) and Black (13 of 380 [3.4%]) representation as chairs has not changed, with only 1 Black and 1 Hispanic/Latinx woman ascending to chair from 2013 to 2019.
    Conclusions and Relevance: A disproportionately small number of faculty from minority groups obtain leadership positions in academic surgery. Intersectionality may leave female members of racial/ethnic minority groups more disadvantaged than their male colleagues in achieving leadership positions. These findings highlight the urgency to diversify surgical leadership.
  35. Conserv Biol. 2021 May 05.
      Zoos and aquaria, often regarded as preservation-cum-entertainment enterprises, are now touted as actors in the efforts to curb the biodiversity crisis: raising awareness, supporting conservation, and conducting research. We have tested whether data grant this claim by assessing the research carried out by zoos on a global scale. For the zoos and aquaria registered in the Species360's Zoological Information Management System and the World Association of Zoos and Aquariums, we compiled metadata about their published research indexed in Scopus and carried out a keyword frequency analysis. We identified hot topics and taxa and unraveled their trends through time. We found that the contribution of zoos to research has indeed increased at a much faster rate than the average accrual of general science, while themes shifted according to observed trends elsewhere. Our results also confirm a strong bias in zoo-led research towards vertebrates, and especially mammals. Whether zoos are effectively contributing to conservation may still be debatable, but our results highlight their institutional efforts to increase the overall knowledge about the species in their care. This article is protected by copyright. All rights reserved.
    Keywords:  Literature analysis; Scopus; biodiversity conservation; history of zoos; hot topics; role of zoos; scientific production; text mining