bims-evares Biomed News
on Evaluation of research
Issue of 2022–06–12
fifty-five papers selected by
Thomas Krichel, Open Library Society



  1. Indian J Orthop. 2022 Jun;56(6): 996-1010
       Purpose: This study used multiple type of bibliometric analysis for identifying and summarizing the publications regarding cervical spondylosis surgery, for clarifying the history of this field, predicting the future hotspots of this field and improving communication among researchers.
    Methods: Publications from Web of Science database between 1900 and 2019 were downloaded and analyzed by Excel 2016 and VOSviewer. Bibliometric maps of co-citations and maps of co-occurrence of keywords are constructed by VOSviewer software.
    Results: A total of 2110 publications were searched from Web of Science. The total sum of times cited is 40448 with the average citation per publication of 19.17 times. USA published most papers (652, 30.9%). The most productive organizations is University of Toronto (96 publications). Spine (308 publications) published the most publications in this field. In co-citations of references analysis, four clusters of references are constructed by VOSviewer. In co-occurrence of keywords analysis, three clusters of keywords are constructed by VOSviewer. The latest keyword "degenerative cervical myelopathy" appeared in 2017 in 42 papers. Other relatively new keywords include "surgical outcomes", "association", "sagittal alignment", "prognostic-factors" that appeared in 2016 in 33, 31, 34 and 37 papers respectively.
    Conclusion: USA dominates the research regarding cervical spondylosis surgery. University of Toronto is the most productive organization in this field. Spine, European Spine Journal and Journal of Neurosurgery Spine are the top three productive journals on publications of cervical spondylosis surgery. "Degenerative cervical myelopathy", "surgical outcomes", "association", "sagittal alignment" and "prognostic-factors" may be the new research hotspots in this field.
    Keywords:  Bibliometric; Cervical spondylosis; Spine; Surgery; VOSviewer
    DOI:  https://doi.org/10.1007/s43465-021-00581-5
  2. Front Psychol. 2022 ;13 899261
      One of the indicators that symbolize the success of an academic field is its academic publications in well-established citation indices. This article first explored the bibliometric characteristics of publications on "teachers' emotional labor" (TEL) in the Social Sciences Citation Index (SSCI) and the Arts & Humanities Citation Index (A&HCI), two prestigious citation indices available in the Web of Science (WoS). Search with the term "teacher emotional labor" retrieved 173 publications that included this term in their titles, abstracts, or keywords in the WoS database between 1900 and 2020. The bibliometric characteristics pertaining to numbers of publications, document types, research categories, research areas, authors, journals, universities, and countries were reported. Then, CiteSpace was utilized to visualize TEL research and to obtain insights into its research focuses and its future directions. The findings will contribute to TEL research by informing scholars in the fields of L2 research and psychology and others.
    Keywords:  CiteSpace; Web of Science; bibliometric characteristics; synthesis; teachers' emotional labor
    DOI:  https://doi.org/10.3389/fpsyg.2022.899261
  3. Front Neurol. 2022 ;13 872261
       Background: Peripheral nerve injury (PNI) is very common in clinical practice, which often reduces the quality of life of patients and imposes a serious medical burden on society. However, to date, there have been no bibliometric analyses of the PNI field from 2017 to 2021. This study aimed to provide a comprehensive overview of the current state of research and frontier trends in the field of PNI research from a bibliometric perspective.
    Methods: Articles and reviews on PNI from 2017 to 2021 were extracted from the Web of Science database. An online bibliometric platform, CiteSpace, and VOSviewer software were used to generate viewable views and perform co-occurrence analysis, co-citation analysis, and burst analysis. The quantitative indicators such as the number of publications, citation frequency, h-index, and impact factor of journals were analyzed by using the functions of "Create Citation Report" and "Journal Citation Reports" in Web of Science Database and Excel software.
    Results: A total of 4,993 papers was identified. The number of annual publications in the field remained high, with an average of more than 998 publications per year. The number of citations increased year by year, with a high number of 22,272 citations in 2021. The United States and China had significant influence in the field. Johns Hopkins University, USA had a leading position in this field. JESSEN KR and JOURNAL OF NEUROSCIENCE were the most influential authors and journals in the field, respectively. Meanwhile, we found that hot topics in the field of PNI focused on dorsal root ganglion (DRG) and satellite glial cells (SGCs) for neuropathic pain relief and on combining tissue engineering techniques and controlling the repair Schwann cell phenotype to promote nerve regeneration, which are not only the focus of research now but is also forecast to be of continued focus in the future.
    Conclusion: This is the first study to conduct a comprehensive bibliometric analysis of publications related to PNI from 2017 to 2021, whose bibliometric results can provide a reliable source for researchers to quickly understand key information in this field and identify potential research frontiers and hot directions.
    Keywords:  CiteSpace; VOSviewer; Web of Science; bibliometric analysis; peripheral nerve injuries
    DOI:  https://doi.org/10.3389/fneur.2022.872261
  4. Reprod Biomed Online. 2022 Apr 20. pii: S1472-6483(22)00269-3. [Epub ahead of print]
       RESEARCH QUESTION: What are the most influential articles in reproductive biology journals from 1980 to 2019 according to Altmetric Attention Score (AAS), number of citations and Relative Citation Ratio (RCR)?
    DESIGN: Cross-sectional study of reproductive biology articles indexed in the National Institutes of Health Open Citation Collection from 1980 to 2019. Data were downloaded on 20 May 2021. The 100 articles with highest AAS, RCR and number of citations were analysed.
    RESULTS: Twenty-one reproductive biology journals were identified, including 120,069 articles published from 1980 to 2019. In total 227 reproductive biology classics were identified due to some overlap between the three lists. Compared with the 100 articles with the highest AAS (after excluding articles featured on both lists), the 100 top-cited articles were older (2014 versus 2001, mean difference [95% confidence interval] 13.5 [11.5, 15.5]), less likely to be open access (64% versus 85%), more likely to be reviews (42% versus 12%) and less likely to be observational studies (9% versus 51%) and randomized clinical trials (0% versus 5%). These same trends were observed in analyses comparing the 100 articles with highest AAS to the 100 articles with highest RCR. The most common topic was assisted reproduction, but prominent topics included infertility for top AAS articles, reproductive technology in animals for top-cited articles, and polycystic ovary syndrome for top RCR articles.
    CONCLUSIONS: Formerly, influential articles in reproductive biology journals were evaluated by absolute citation rates and subject to limitations of conventional bibliometric analysis. This is the first comprehensive study to use altmetrics and citation-based metrics to identify reproductive biology classics.
    Keywords:  Altmetric Attention Score; Assisted reproduction; Relative Citation Ratio; Reproductive biology; Reproductive medicine
    DOI:  https://doi.org/10.1016/j.rbmo.2022.04.005
  5. Front Immunol. 2022 ;13 859972
       Background: Mesenchymal stem cells (MSCs) have important research value and broad application prospects in liver diseases. This study aims to comprehensively review the cooperation and influence of countries, institutions, authors, and journals in the field of MSCs in liver diseases from the perspective of bibliometrics, evaluate the clustering evolution of knowledge structure, and discover hot trends and emerging topics.
    Methods: The articles and reviews related to MSCs in liver diseases were retrieved from the Web of Science Core Collection using Topic Search. A bibliometric study was performed using CiteSpace and VOSviewer.
    Results: A total of 3404 articles and reviews were included over the period 2001-2021. The number of articles regarding MSCs in liver diseases showed an increasing trend. These publications mainly come from 3251 institutions in 113 countries led by China and the USA. Li L published the most papers among the publications, while Pittenger MF had the most co-citations. Analysis of the most productive journals shows that most are specialized in medical research, experimental medicine and cell biology, and cell & tissue engineering. The macroscopical sketch and micro-representation of the whole knowledge field are realized through co-citation analysis. Liver scaffold, MSC therapy, extracellular vesicle, and others are current and developing areas of the study. The keywords "machine perfusion", "liver transplantation", and "microRNAs" also may be the focus of new trends and future research.
    Conclusions: In this study, bibliometrics and visual methods were used to review the research of MSCs in liver diseases comprehensively. This paper will help scholars better understand the dynamic evolution of the application of MSCs in liver diseases and point out the direction for future research.
    Keywords:  VOSviewer; bibliometric analysis; citespace; liver diseases; mesenchymal stem cells; visualization
    DOI:  https://doi.org/10.3389/fimmu.2022.859972
  6. Nurse Educ Today. 2022 Jun 03. pii: S0260-6917(22)00162-9. [Epub ahead of print]116 105426
       BACKGROUND: Simulation-based nursing training has been used incorporated into nursing education for decades, however, there is limited information related to simulation research hotspots and theme trends over time.
    OBJECTIVES: To investigate the research hotspots and theme trends of simulation in nursing education through bibliometric analysis.
    METHODS: Relevant articles on simulation in nursing education published between 2005 and 2019 were retrieved from PubMed. The Bibliographic Item Co-occurrence Matrix Builder (BICOMB) was used to extract and quantitatively analyze the Medical Subject Headings (MeSH) terms and subheadings. The biclustering analysis was conducted using gCluto1.0 to identify the research hotspots. A strategic diagram was employed to reveal the development trend of the theme.
    RESULTS: A total of 4102 publications were retrieved from PubMed showing an overall increasing trend. Based on the results, the United States was the most productive country (2868,55.7 %), the journal Nurse Education Today journal was the top journal concerning this field, and Cooper SJ and Holtschneider ME were authors with the highest number of publications on this topic. Quantitative and co-word biclustering analyses were used in this study. The research hotspots in recent 5 years were focused on: (1) interprofessional simulation in patient-care teams; (2) patient simulation in psychiatric nursing education; (3) virtual reality simulation (VRS) in midwifery and nursing education; (4) simulation in critical care nurses' continuing education/training, and (5) simulation in pediatric resuscitation education. The strategic diagram showed that the VRS in midwifery and nursing education might have a significant potential to become an emerging hotspot soon.
    CONCLUSION: The research literature production of simulation in nursing education was increasing over the past 15 years. Through co-word biclustering analysis, five research hotspots were identified. Among them, simulation in psychiatric education and critical care continuing education had a central priority that researchers should pay further attention to, and VRS could be the major trend for future study. Furthermore, this study described the overall range of research interests and provided ideas for innovative and efficient research projects.
    Keywords:  Bibliometric analysis; Co-word analysis; Nursing education; Simulation; Strategic diagram
    DOI:  https://doi.org/10.1016/j.nedt.2022.105426
  7. Medicine (Baltimore). 2022 Jun 10. 101(23): e29240
       BACKGROUND: The aim of this study was to analyze published papers on the use of herbal medicine in obesity research over the past 20 years using bibliometric methods and present an overview of global research trends.
    METHODS: English articles on herbal medicine for obesity published from 2001 to 2020 were retrieved from the Web of Science Core Collection database using the search terms "herbal" AND "obesity". Microsoft Office Excel was used to sort and analyze the statistical data. Bibliographic analysis and data visualization were performed using visualization of similarities viewer based on publication year, country of publication, journal, research area, author, affiliated institution, and keywords.
    RESULTS: A total of 463 English articles were retrieved, and we observed a trend in which the number of publications on herbal medicine for obesity has gradually increased over the past 20 years. The most productive countries and research organizations in this field were Korea and Kyunghee University, respectively. Many papers have been published in research areas, such as pharmacology pharmacy and integrative complementary medicine, and the journals with the most published articles in this field were Journal of Ethnopharmacology and Evidence-Based Complementary and Alternative Medicine. The main research keywords formed 3 clusters, and keywords with the most occurrences were "obesity," "adipose-tissue," and "insulin resistance."
    CONCLUSION: This study presents an overview of the global research trend of herbal medicine for obesity from the bibliographic analysis. An increased understanding of the recently changing research topics provides a new perspective on future research directions. This study may help guide the research in the field of obesity in the future.
    DOI:  https://doi.org/10.1097/MD.0000000000029240
  8. Sensors (Basel). 2022 Jun 03. pii: 4276. [Epub ahead of print]22(11):
      This paper aims to comprehensively review 891 documents in the Scopus database about Internet of Things (IoT) in Ind 4.0 to understand the historical growth, current state, and potential expansion trend. From 2014 to 2020, a systematic methodology gathered information on IoT in Ind 4.0 documents in various Scopus databases. The relevant IoT research in Ind 4.0 documents is provided, and their types, publications, citations, and predictions are discussed. The VOSviewer 1.16.6 and Biblioshiny 2.0 applications display IoT status in Ind 4.0 publications for visualization research. The citation review aims to find the most prominent and influential authors, sources, papers, countries, and organizations. For citation analysis and ranking, document selection criteria were well defined. The author keywords, index keywords, and text data content analysis were used to identify the hotspots and development trends. The yearly IoT in Ind 4.0 article publications presented a speedily increasing trend, and a curve was fitted employing an exponential function. The paper "Intelligent manufacturing in the context of Industry 4.0: a review" was rated first with 754 citations. With 1629 citations, the "International Journal of Production Research" was ranked #1 along with Wan J. The South China University of Technology in Guangzhou, China, was placed first along with the United States as the most prolific and influential country. 'Industry 4.0' appeared the first time in 2014 with an application of IoT in Ind 4.0 with an overall appearance of 528, followed by the 'internet of things' in 2015, three times with a total count of 220 up to 2020. The IoT in Ind 4.0 assessment and bibliometric analysis intended to provide intellectuals a broad perspective working in IoT in Ind 4.0. Scholars should understand the hotspots in this area as soon as possible. This is also the first paper to thoroughly use bibliometric research to examine the IoT in Ind 4.0 literature. It will assist researchers of IoT in Ind 4.0 in expanding their knowledge and quickly comprehending the development status and pattern.
    Keywords:  Biblioshiny; Industry 4.0; Internet of Things; VOSviewer; bibliometric analysis; content analysis; review
    DOI:  https://doi.org/10.3390/s22114276
  9. Heliyon. 2022 May;8(5): e09510
      This study examined the developments in the field of Scheduling algorithms in the last 30 years (1992-2021) to help researchers gain new insight and uncover the emerging areas of growth for further research in this field. This study, therefore, carried out a bibliometric analysis of 12,644 peer-reviewed documents extracted from the Scopus database using the Bibliometrix R package for bibliometric analysis via the Biblioshiny web interface. The results of this study established the development status of the field of Scheduling Algorithms, the growth rate, and emerging thematic areas for further research, institutions, and country collaborations. It also identified the most impactful and leading authors, keywords, sources, and publications in this field. These findings can help both budding and established researchers to find new research focus and collaboration opportunities and make informed decisions as they research the field of scheduling algorithms and their applications.
    Keywords:  Bibliometric analysis; Bibliometrix; Biblioshiny; Scheduling algorithms; Science mapping
    DOI:  https://doi.org/10.1016/j.heliyon.2022.e09510
  10. BMC Ophthalmol. 2022 Jun 08. 22(1): 255
       PURPOSE: The aim of this study was to identify trends and focuses in the field of Fuchs endothelial corneal dystrophy (FECD) research.
    METHODS: A bibliometric analysis based on the Web of Science Core Collection was conducted. All publications related to FECD from 2001 to 2020 were extracted and analyzed. VOSviewer v.1.6.17 was used to construct a visualization map and evaluate the trends and focuses in FECD research.
    RESULTS: A total of 1,041 publications were extracted. The rate of global publications has steadily increased. The United States produced the highest number of publications (461), the highest number of citations (18,757), and the highest H index (69). Melles GRJ published the highest number of papers (60), and Price FW had the highest number of citations (4,154) in the FECD research field. The highest number of publications came from the journal Cornea (279). Keywords were classified into four clusters: (1) corneal transplantation surgery, (2) surgical techniques and instruments, (3) corneal parameter measurement, and (4) genetic and molecular pathomechanisms. The average appearing years (AAYs) of the keywords were evaluated. Recently appearing keywords included "Tcf4 gene" (AAY of 2018.3), "ctg18.1" (AAY of 2017.2), "trinucleotide repeat expansion" (AAY of 2018.3), "rock inhibitor" (AAY of 2017.4), and "descemetorhexis" (AAY of 2017.4).
    CONCLUSIONS: The United States has a dominant position in FECD research. Although corneal transplantation surgery has been the most mainstream area of FECD research field for a long time, gene mutations such as the TCF4 CTG trinucleotide repeat expansion, nonsurgical interventions such as rho-associated kinase inhibitors, and newer surgical methods such as descemetorhexis without endothelial keratoplasty are potential research hotspots.
    Keywords:  Bibliometric analysis; Fuchs endothelial corneal dystrophy (FECD); Research hotspots; VOSviewer
    DOI:  https://doi.org/10.1186/s12886-022-02468-x
  11. J Med Internet Res. 2022 Jun 08. 24(6): e35747
       BACKGROUND: Research into mobile health (mHealth) technologies on weight loss, physical activity, and sedentary behavior has increased substantially over the last decade; however, no research has been published showing the research trend in this field.
    OBJECTIVE: The purpose of this study was to provide a dynamic and longitudinal bibliometric analysis of recent trends of mHealth research for weight loss, physical activity, and sedentary behavior.
    METHODS: A comprehensive search was conducted through Web of Science to retrieve all existing relevant documents published in English between January 1, 2010, and November 1, 2021. We developed appropriate research questions; based on the proven bibliometric approaches, a search strategy was formulated to screen the title for eligibility. Finally, we conducted bibliometric analyses to explore the growth rate of publications; publication patterns; and the most productive authors, institutions, and countries, and visualized the trends in the field using a keyword co-occurrence network.
    RESULTS: The initial search identified 8739 articles, of which 1035 were included in the analyses. Our findings show an exponential growth trend in the number of annual publications of mHealth technology research in these fields. JMIR mHealth and uHealth (n=214, 20.67%), Journal of Medical Internet Research (n=71, 6.86%), and BMC Public Health (n=36, 3.47%) were the top 3 journals, publishing higher numbers of articles. The United States remained the leading contributor in these areas (n=405, 39.13%), followed by Australia (n=154, 14.87%) and England (n=125, 12.07%). Among the universities, the University of Sydney (n=36, 3.47%) contributed the most mHealth technology research in these areas; however, Deakin University (n=25, 2.41%) and the National University of Singapore (n=23, 2.22%) were in the second and third positions, respectively.
    CONCLUSIONS: Although the number of papers published on mobile technologies for weight loss, physical activity, and sedentary behavior was initially low, there has been an overall increase in these areas in recent years. The findings of the study indicate that mobile apps and technologies have substantial potential to reduce weight, increase physical activity, and change sedentary behavior. Indeed, this study provides a useful overview of the publication trends and valuable guidance on future research directions and perspectives in this rapidly developing field.
    Keywords:  app; behavior; bibliometric; bibliometric analysis; journal; literature; mHealth; mobile health; physical activity; research; sedentary behavior; trend; weight; weight loss
    DOI:  https://doi.org/10.2196/35747
  12. Oral Radiol. 2022 Jun 10.
      
    Keywords:  37 Years; Bibliometric analysis; Oral radiology
    DOI:  https://doi.org/10.1007/s11282-022-00632-z
  13. Spine (Phila Pa 1976). 2022 Jun 01. 47(11): E477-E484
       STUDY DESIGN: Bibliometric review.
    OBJECTIVE: This study aims to understand the worldwide research productivity trends in spine-related research over the past five decades.
    SUMMARY OF BACKGROUND DATA: Research productivity in the field of spine surgery has increased tremendously over the past decades. However, knowledge regarding the detailed regional disparity is limited.
    METHODS: We evaluated original research articles published in four prestigious journals on spine research (European Spine Journal, Journal of Neurosurgery: Spine, Spine, and The Spine Journal) from 1976 to 2020. For 1 year of each decade, the origin of the first and the senior author was assigned to their region of origin. For the year 2020, a detailed analysis of countries and states of origin was performed, and the number of articles was normalized by registered MDs per country (per 10,000 population).
    RESULTS: We included a total of 4436 articles and 8776 authors for analysis. From 1976 to 2020, the percentage of publications originating from North America decreased (77%-38%). In contrast, Asian contributions drastically increased (3%-36%), whereas articles originating from Europe only slightly raised (20%-22%). In 2020, the United States was the most productive country worldwide (34% with most articles from New York (19%), followed by China (16%) and Japan (10%). After normalization to registered MDs (per 10,000 population), the United States proved to have the highest number of articles. Besides this, India now ranked fourth and Egypt eighth in terms of the most productive countries per MDs.
    CONCLUSION: North America contributed the largest share of all articles published in the last five decades. Asia, which ranks second in 2020, has overtaken Europe. Normalization to registered MDs can be a helpful tool to reflect a country's research productivity more accurately.Level of Evidence: 3.
    DOI:  https://doi.org/10.1097/BRS.0000000000004293
  14. Front Bioeng Biotechnol. 2022 ;10 904629
      Objective: Electroactive biomaterials used in tissue engineering have been extensively studied. Electroactive biomaterials have unique potential advantages in cell culture and tissue regeneration, which have attracted the attention of medical researchers worldwide. Therefore, it is important to understand the global scientific output regarding this topic. An analysis of publications on electroactive biomaterials used in tissue engineering over the past decade was performed, and the results were summarised to track the current hotspots and highlight future directions. Methods: Globally relevant publications on electroactive biomaterials used in tissue engineering between 2011 and 2021 were extracted from the Web of Science database. The VOSviewer software and CiteSpace were employed to visualise and predict trends in research on the topic. Results: A total of 3,374 publications were screened. China contributed the largest number of publications (995) and citations (1581.95, actual value ×0.05). The United States achieved the highest H-index (440 actual values ×0.05). The journal Materials Science & Engineering C-materials for Biological Applications (IF = 7.328) published the most studies on this topic (150). The Chinese Academy of Science had the largest number of publications (107) among all institutions. The publication titled Nanotechnological strategies for engineering complex tissues by Dir, T of the United States had the highest citation frequency (985 times). Regarding the function of electroactive materials, the keyword "sensors" emerged in recent years. Regarding the characterisation of electroactive materials, the keyword "water contact angle" appeared lately. Regarding electroactive materials in nerve and cardiac tissue engineering, the keywords "silk fibroin and conductive hydrogel" appeared recently. Regarding the application of electroactive materials in bone tissue engineering, the keyword "angiogenesis" emerged in recent years. The current research trend indicates that although new functional materials are constantly being developed, attention should also be paid to their application and transformation in tissue engineering. Conclusion: The number of publications on electroactive biomaterials used in tissue engineering is expected to increase in the future. Topics like sensors, water contact angle, angiogenesis, silk fibroin, and conductive hydrogels are expected to be the focuses of research in the future; attention should also be paid to the application and transformation of electroactive materials, particularly bone tissue engineering. Moreover, further development of the field requires joint efforts from all disciplines.
    Keywords:  bibliometrics; electroactive biomaterials; hotspot; tissue engineering; web of science
    DOI:  https://doi.org/10.3389/fbioe.2022.904629
  15. PLoS One. 2022 ;17(6): e0268989
      There is a dearth of literature that provides a bibliometric analysis concerning the role of Artificial Intelligence (AI) in sustainable agriculture therefore this study attempts to fill this research gap and provides evidence from the studies conducted between 2000-2021 in this field of research. The study is a systematic bibliographic analysis of the 465 previous articles and reviews done between 2000-2021 in relation to the utilization of AI in sustainable methods of agriculture. The results of the study have been visualized and presented using the VOSviewer and Biblioshiny visualizer software. The results obtained post analysis indicate that, the amount of academic works published in the field of AI's role in enabling sustainable agriculture increased significantly from 2018. Therefore, there is conclusive evidence that the growth trajectory shows a significant climb upwards. Geographically analysed, the country collaboration network highlights that most number of studies in the realm of this study originate from China, USA, India, Iran, France. The co-author network analysis results represent that there are multi-disciplinary collaborations and interactions between prominent authors from United States of America, China, United Kingdom and Germany. The final framework provided from this bibliometric study will help future researchers identify the key areas of interest in research of AI and sustainable agriculture and narrow down on the countries where prominent academic work is published to explore co-authorship opportunities.
    DOI:  https://doi.org/10.1371/journal.pone.0268989
  16. World J Clin Pediatr. 2022 May 09. 11(3): 307-320
       BACKGROUND: Recently, neonatal abstinence syndrome (NAS) emerged as a significant global concern with a dramatic increase in healthcare expenditures. The incidence of the NAS has increased notably in the past decade and emergence as a global public health problem.
    AIM: To evaluate the development and trend of global NAS research from 1958 to 2019 by bibliometric analysis.
    METHODS: Analyzed aspects included publication output per year, language, document types, journals, countries/territories, h-index, authors, and top research priorities. The VOSviewer was used to determine the top research priorities, and trends, and to present bibliometric networks concerning various dimensions, such as co-authorship, authors, and countries.
    RESULTS: A total of 1738 articles were retrieved in the Scopus database from 1958 to 2019. It was found that the great majority of the total NAS documents (n = 1295) were original articles followed by reviews (n = 268) and letters (n = 48). The most productive countries in the NAS field were the United States (n = 833), Canada (n = 112), the United Kingdom (n = 111), and Germany (n = 77). Treatment and hospital outcomes in NAS, evidence-based nurse-driven interventions for the care of newborns with NAS, and a systematic reviews and network meta-analysis for therapeutic approaches of NAS were found in recent years (after 2010), compared with terms such as pathophysiology, mechanisms of NAS, and signs and symptoms in the early years.
    CONCLUSION: Treatment and pediatric outcomes and the effectiveness of pharmacological treatment may be frontiers in the NAS field, and continued efforts from researchers are needed in those topics.
    Keywords:  Bibliometric; Neonatal abstinence syndrome; Scopus; VOSviewer; Visualization
    DOI:  https://doi.org/10.5409/wjcp.v11.i3.307
  17. Front Public Health. 2022 ;10 906715
       Background: With the emergence of the metaverse, virtual reality, as a digital technology, must be getting hotter. High quality virtual reality related nursing knowledge scene learning is gradually replacing traditional education and intervention skills.
    Objective: This systematic study aimed to gain insights into the overall application of virtual reality technology in the study of nursing.
    Methods: Citations downloaded from the Web of Science Core Collection database for use in VR in nursing publications published from January 1, 2012, to December 31, 2021, were considered in the research. Information retrieval was analyzed using https://bibliometric.com/app, CiteSpace.5.8. R3, and VOS viewer.
    Results: A total of 408 institutions from 95 areas contributed to relevant publications, of which the United States is the most influential country in this research field. The clustering labels of cited documents were obtained from the citing documents. Virtual simulation, virtual learning, clinical skills, and dementia are the clustering labels of co-cited documents. The burst keywords represented the research frontiers in 2020-2021, which were knowledge and simulation.
    Conclusion: Virtual nursing has had an impact on both nurses and clients. With the emergence of the concept of the metaverse, the research and application of virtual reality technology in nursing will gradually increase.
    Keywords:  CiteSpace; VOS viewer; bibliometric; nursing; virtual reality
    DOI:  https://doi.org/10.3389/fpubh.2022.906715
  18. Acta Ophthalmol. 2022 Jun 07.
       PURPOSE: To explore the trends in worldwide ophthalmic research production over a 21-year period in relation to journals, contributing countries and dominating topics with special focus on the Nordic region.
    METHODS: Articles published between 2000 and 2020 in 20 top-ranked ophthalmology journals were included. Number of articles and impact points were measured per country for each year. The most frequently occurring keywords were calculated worldwide and for the top five contributing countries and the Nordic countries. Trends were explored using linear regression.
    RESULTS: The analysis included 65 220 articles. Linear regression showed an increase with 56 articles per year (β = 56.3, R2  = 0.72, p-value < 0.01). The United States published the most articles, comprising 35% of the worldwide total, followed by the United Kingdom (9%) and Japan (7%). Population-adjusted productivity revealed that Iceland was the most prolific country with 10 articles per million inhabitants/year. Singapore was second and Denmark third with corresponding numbers of nine and seven. Analysing regional trends, Asia had the largest increase in yearly number of articles (β = 29.1, R2  = 0.89, p-value < 0.01). The strongest positive trend was observed in China (β = 15.7, R2  = 0.94, p-value < 0.01). The Nordic countries contributed with 3.6% of worldwide ophthalmological papers. Among these, Denmark was the only country with a significant positive trend in impact points per million inhabitants per year (β = 0.6, R2  = 0.54, p-value < 0.01). The most frequently occurring eye disease within the whole time frame was myopia (5.8%) followed by macular degeneration (5.4%) and glaucoma (5.3%). Linear regression showed a significant increase in the proportion of articles about diabetic retinopathy (β = 0.2%, R2  = 0.88, p-value < 0.01) a significant decrease in the proportion in articles about cataract (β = -0.1%, R2  = 0.70, p-value < 0.01) and myopia (β = -0.1%, R2  = 0.67, p-value < 0.01).
    CONCLUSIONS: The worldwide ophthalmic research productivity has maintained a growing trend from 2000 to 2020. While North America and Europe are the major contributors, the scientific activity in Asia and especially China is growing impressively. With the current progress, Asia is forecast to outweigh Europe in 2025 and North America in 2033. Diabetic retinopathy was the most common eye disease in ophthalmologic papers in 2020, and also the topic with the strongest positive trend during 2000-2020.
    Keywords:  bibliometrics; journal impact factor; ophthalmology; publication productivity
    DOI:  https://doi.org/10.1111/aos.15200
  19. Cancer Rep (Hoboken). 2022 Jun 11. e1650
       PURPOSE: To evaluate the cancer research effort of some major countries over two 5-year periods (2010-2014 and 2015-2019) on the basis of scientific publications and interventional clinical trial metrics and to analyze the relationship between research effort and cancer burden (incidence and mortality).
    MATERIALS AND METHODS: Clinical trials were extracted from ClinicalTrials.gov using a specific query. Publications were identified in Web of Science (WoS) using a query based on keywords and were then analyzed using InCites, a bibliometric tool. Bibliometric indicators were computed per country and per period.
    RESULTS: During 2010-2019, 1 120 821 cancer-related publications were identified in WoS, with 447 900 and 672 921 (+50%) articles respectively published in 2010-2014 and 2015-2019. Meanwhile, 38% and 7% of the articles were published in oncology and cell biology journals, respectively. Exactly 30% of the published articles were contributed by the USA. In the study period, China strongly increased its production and overspecialization. Apart from China, which had a low normalized citation impact (NCI), almost all countries increased their NCIs; in particular, France's NCI increased from 1.69 to 2.44. As for clinical trials, over 36 856 were opened worldwide during that period. Over 17 000 (46.5%) opened in the USA, which remained the leader during the study period. China ranked second worldwide in terms of the number of open trials in 2015-2019. Results revealed that the 17 cancer localizations versus cancer burden and research effort showed no evident relationship.
    CONCLUSION: The results may provide a scientific basis for decision making for continued research. Based on bibliometric data, this type of study will aid public health policymaking and lead to a more transparent public fund allocation.
    Keywords:  bibliometrics; cancer; clinical trials; publications; research assessment
    DOI:  https://doi.org/10.1002/cnr2.1650
  20. Front Psychiatry. 2022 ;13 830819
       Background: With the development of quantitative electroencephalography (QEEG), an increasing number of studies have been published on the clinical use of QEEG in the past two decades, particularly in the diagnosis, treatment, and prognosis of neuropsychiatric disorders. However, to date, the current status and developing trends of this research field have not been systematically analyzed from a macroscopic perspective. The present study aimed to identify the hot spots, knowledge base, and frontiers of QEEG research in neuropsychiatric disorders from 2000 to 2021 through bibliometric analysis.
    Methods: QEEG-related publications in the neuropsychiatric field from 2000 to 2021 were retrieved from the Web of Science Core Collection (WOSCC). CiteSpace and VOSviewer software programs, and the online literature analysis platform (bibliometric.com) were employed to perform bibliographic and visualized analysis.
    Results: A total of 1,904 publications between 2000 and 2021 were retrieved. The number of QEEG-related publications in neuropsychiatric disorders increased steadily from 2000 to 2021, and research in psychiatric disorders requires more attention in comparison to research in neurological disorders. During the last two decades, QEEG has been mainly applied in neurodegenerative diseases, cerebrovascular diseases, and mental disorders to reveal the pathological mechanisms, assist clinical diagnosis, and promote the selection of effective treatments. The recent hot topics focused on QEEG utilization in neurodegenerative disorders like Alzheimer's and Parkinson's disease, traumatic brain injury and related cerebrovascular diseases, epilepsy and seizure, attention-deficit hyperactivity disorder, and other mental disorders like major depressive disorder and schizophrenia. In addition, studies to cross-validate QEEG biomarkers, develop new biomarkers (e.g., functional connectivity and complexity), and extract compound biomarkers by machine learning were the emerging trends.
    Conclusion: The present study integrated bibliometric information on the current status, the knowledge base, and future directions of QEEG studies in neuropsychiatric disorders from a macroscopic perspective. It may provide valuable insights for researchers focusing on the utilization of QEEG in this field.
    Keywords:  CiteSpace; VOSviewer; bibliometrics; neuropsychiatric disorders; quantitative electroencephalogram
    DOI:  https://doi.org/10.3389/fpsyt.2022.830819
  21. J Infect Public Health. 2022 May 27. pii: S1876-0341(22)00133-2. [Epub ahead of print]15(7): 709-719
       BACKGROUND: At the global level and in Saudi Arabia, COVID-19 remains a major public health problem. The COVID-19 pandemic contributed substantially to a surge in publications on the novel coronavirus responsible for this pandemic. This research is intended to assess the increasing contribution of Saudi Arabia to the global research on COVID-19.
    METHODS: A bibliometric analysis of all Saudi-affiliated publications on COVID-19 documented between December 2019 and October 2021 was conducted in October 2021 using the Web of Science advanced search builder.
    RESULTS: A total of 175,615 global publications on COVID-19 were retrieved in the search. Among these, 9118 (5.2%) publications were from Arab nations. Among the Arab nations, Saudi Arabia (n = 3615) had the highest number of COVID-19 publications, followed by Egypt (n = 2053) and the United Arab Emirates (n = 1057), respectively. Globally, Saudi Arabia ranked 15th among the countries with the highest publication productivity, and the rank was 11th after standardization based on the population size and the gross domestic product. International collaborations were mainly with the researchers from Egypt, followed by the United States, India, Pakistan, and the United Kingdom. King Saud University was the most productive among all institutes in terms of COVID-19-related publications at both local and regional levels.
    CONCLUSION: Saudi Arabia is the leading Arabian nation and one of the top fifteen nations worldwide in terms of COVID-19 research output. Further efforts are warranted from the researchers based in Saudi Arabia in the direction of increasing the quality and the number of publications at the global level. This can be achieved by timely response, proper planning, understating the global research progress, and enhancing the knowledge exchange and collaboration with the other local and international institutes.
    Keywords:  Bibliometric analysis; COVID-19; Saudi Arabia; Web of Science
    DOI:  https://doi.org/10.1016/j.jiph.2022.05.013
  22. Front Med (Lausanne). 2022 ;9 880553
       Background: Inflammatory bowel disease (IBD) is a continuously increasing and worldwide disease, and the number of publications of IBD has been expanding in the past 10 years. The purpose of this study is to analyze the published articles of IBD in the past decade via machine learning and text analysis and get a more comprehensive understanding of the research trends and changes in IBD in the past 10 years.
    Method: In November 2021, we downloaded the published articles related to IBD in PubMed for the past 10 years (2012-2021). We utilized Python to extract the title, publication date, MeSH terms, and abstract from the metadata of each publication for bibliometric assessment. Latent Dirichlet allocation (LDA) was used to the abstracts to identify publications' research topics with greater specificity.
    Result: We finally identified and analyzed 34,458 publications in total. We found that publications in the last 10 years were mainly focused on treatment and mechanism. Among them, publications on biological agents and Gastrointestinal Microbiome have a significant advantage in terms of volume and rate of publications. In addition, publications related to IBD and coronavirus disease 2019 (COVID-19) have increased sharply since the outbreak of the worldwide pandemic caused by novel β-coronavirus in 2019. However, researchers seem to pay less attention to the nutritional and psychological status of patients with IBD.
    Conclusion: IBD is still a worldwide disease of concern with the publication of IBD-related research has expanded continuously over the past decade. More research related nutritional and psychological status of patients with IBD is needed in the future. Besides, it is worth noting that the management of chronic diseases such as IBD required additional attention during an infectious disease epidemic.
    Keywords:  bibliometric; coronavirus disease 2019; inflammatory bowel disease; machine learning; publication analysis
    DOI:  https://doi.org/10.3389/fmed.2022.880553
  23. J Oral Biol Craniofac Res. 2022 Jul-Aug;12(4):12(4): 458-464
       Objectives: There is a world of information at our disposal, and it is increasingly difficult to transform this dull amount of data into knowledge. How to be constantly actualized? This study aims to create an altmetric list of the top 50 articles related to COVID-19 and oral health.
    Methods: Research of terms COVID-19 and oral health was done using Dimensions app. Results were ranked in altmetric citations and analyzed through Microsoft Excel. Some tables and graphics were created. Graphical illustration of keywords was created using VOSviewer.
    Results: Some interesting facts can be seen, like growing interest in dental aerosols, perspectives, and virucidal activity of some mouthwashes.
    Conclusions: Altmetric analysis is a helpful manner to scientific updates, supplementing bibliometric analysis. A terrific manner to see trends. The scientific community goes to great lengths to solve problems with dental aerosols, particularly to reduce contamination. Some adjustments to dental office and the use of barriers are recommended.
    Keywords:  Altmetric; Bibliometrics; Citation; Impact factor; Social media; Twitter
    DOI:  https://doi.org/10.1016/j.jobcr.2022.05.010
  24. Front Psychiatry. 2022 ;13 874137
      In this study, we analyzed the status and research trends of the GABAergic system in depression from 2004 to 2020 to provide a reference for further research. The Web of Science database was used as the data source and 1,658 publishments were included. Using two visualization analysis software, CiteSpace and VOSviewer, we analyzed the publishing years, countries, institutions, authors, journals, categories, keywords, and research frontiers in depression. The publishments revealed an upward trend from 2004 to 2020; the most prolific country and institutions were the United States and INSERM, respectively. The journal of Neuroscience was the most published and cited journal. The most relevant category was neurosciences. The hot topics in this field were GABAergic research in Gaba(a) receptor; the research frontier was depressive model. These analysis results provide a new perspective for researchers to conduct studies on related topics in the future and guidance for scientists to identify potential collaborators and research cooperation institutions.
    Keywords:  CiteSpace; GABAergic; VOSviewer; depression; visualization analysis
    DOI:  https://doi.org/10.3389/fpsyt.2022.874137
  25. West J Emerg Med. 2022 May 05. 23(3): 432-438
       INTRODUCTION: Coronavirus disease 2019 (COVID-19)-related articles published in emergency medicine (EM) journals provide insight into the responses of EM researchers and journal editors globally to a newly emerging infectious disease. We studied trends in the number, types, and national origins of COVID-19 literature published in EM journals to investigate knowledge transmission via scientific publication during the pandemic.
    METHODS: This was a retrospective observational study. The EM journal list was adopted from the 2019 Journal Citation Reports. We retrieved data from the SCOPUS database, limited to publication year 2020, and identified COVID-19 publications when the title, abstract, or keywords included "COVID" or "SARS." The outcome measurements were as follows: 1) monthly COVID-19 publication numbers in EM journals; 2) the percentage of COVID-19 published literature in terms of total journal publications; 3) the countries, affiliations, and authors of COVID-19-related publications; 4) the differences in the proportions of "Articles" and "Letters" between COVID-19 and non-COVID-19 publications; and 5) the total, average, and maximum number of times cited for different types of COVID-19-related scientific literature.
    RESULTS: We retrieved a total of 7,457 published papers from 31 EM journals. There were 765 (10.26%) COVID-19-related publications in 27 journals contributed by 67 countries; the first authors were from 49 countries. The monthly COVID-19 publication numbers in the categories of "Letters" and "Articles" were nearly equal before July 2020. The yearly proportions of COVID-19-focused articles and letters were 48.8% and 29.9%, respectively, while non-COVID-19 proportions were 72.1% and 9.8%, respectively. The chi-squared statistic of the differences between the numbers of articles and letters in COVID-19 and non-COVID-19 published research was significant (P < .001).
    CONCLUSION: An analysis of COVID-19 publications in EM journals indicated that, in the early stage of a newly emerging infectious disease, the number of letters and articles increased simultaneously. The proportion of COVID-19-focused letters was higher than those published on other topics. The "Article" and "Review" category of COVID-19 research was cited more times than that of "Letters."
    DOI:  https://doi.org/10.5811/westjem.2022.1.55029
  26. Plast Reconstr Surg. 2022 Jun 13.
       BACKGROUND: Social media has altered the mechanisms by which published research is disseminated and accessed. The objective of this study was to measure the effect of promotion on research article dissemination, influence, and impact in Plastic and Reconstructive Surgery.
    METHODS: All articles published in Plastic and Reconstructive Surgery from January 1, 2016-December 31, 2018 were obtained and reviewed to determine inclusion/exclusion and for the Altmetric Attention Score (AAS), citations, relative citation rate (RCR), and 16 unique promotional tags (journal club, editor's pick, press release, patient safety, etc.) as indexed on the Plastic and Reconstructive Surgery website. 1,502 articles were included in the analysis. Statistical analysis was completed using descriptive statistics, Pearson's correlations, and Student t-tests where appropriate with a predetermined level of significance of p≤0.05.
    RESULTS: A total of 637 articles (42.4%) had a promotional tag, while 252 (16.8%) had multiple tags. Articles with promotional tags had higher AAS (30.35 vs 8.22; p<0.001), more citations (11.96 vs 8.47; p<0.001), and a higher RCR (2.97 vs 2.06; p<0.001) compared to articles without a tag. Articles with multiple tags had higher AAS (50.17 vs 17.39; p<0.001), more citations (15.78 vs 9.47; p<0.001), and a higher RCR (3.67 vs 2.51; p<0.001) compared to articles with only one tag. As the number of tags increased for an article, AAS (p<0.001), citation count (p<0.001), and RCR (p<0.001) likewise increased.
    CONCLUSIONS: This analysis strongly suggests that promotion of research articles is associated with significantly wider dissemination, broader visibility, and more subsequent citations in the literature.
    DOI:  https://doi.org/10.1097/PRS.0000000000009307
  27. Front Med (Lausanne). 2022 ;9 855385
       Purpose: To investigate the severity and causes of gender imbalance in the counts of ophthalmology citations.
    Methods: The PubMed database was searched to identify cited papers that were published in four journals (Prog Retin Eye Res, Ophthalmology, JAMA Ophthalmol, and Invest Ophthalmol Vis Sci) between August 2015 and July 2020, and those that referenced these cited papers by 2021 July (i.e., citing papers). The gender category of a given paper is defined by the gender of the first and last author (MM, FM, MF, and FF; M means male and F means female). A generalized additive model to predict the expected proportion was fitted. The difference between the observed proportion and expected proportion of citations of a paper's gender category was the primary outcome.
    Results: The proportion of female-led (MF and FF) papers slightly increased from 27% in 2015 to 30% in 2020. MM, FM, MF, and FF papers were cited as -9.3, -1.5, 13.0, and 23.9% more than expected, respectively. MM papers cited 13.9% more male-led (MM and FM) papers than female-led papers, and FF papers cited 33.5% fewer male-led papers than female-led papers. The difference between the observed proportion and expected proportion of MM citing papers within male-led and female-led cited papers grew at a rate of 0.13 and 0.67% per year.
    Conclusion: The high frequency of citations of female-led papers might narrow the gender gap in the citation count within ophthalmology. These findings show that papers by female-led are less common, so the gender gap might still exist even with their high citation count.
    Keywords:  citation; equity; gender; generalized additive model; ophthalmology
    DOI:  https://doi.org/10.3389/fmed.2022.855385
  28. Cureus. 2022 May;14(5): e24791
       INTRODUCTION: Discrepancy between osteopathic (DO) and allopathic (MD) graduates in general surgery spans across all levels of training. In this cross-sectional study, we characterized DO surgeons who serve as faculty at university-based general surgery departments.
    METHODS: Overall, 106 university-based surgery departments were reviewed. DO and MD surgeons from the same institutions were identified, and demographic data were tabulated. MD surgeons were the control group. Univariate analysis and multivariate regression models were used to compare total publications, h-index, and citations.
    RESULTS: A total of 70 DO surgeons from 34 institutions were identified: 53 assistant professors, 16 associate professors, and one full professor. Of the DO surgeons, 35.7% completed residency at a university-based program, and 92.9% completed a fellowship, with surgical critical care and trauma being the most common. They were compared to 1,307 MD surgeons from the same institutions. Univariate analysis showed that MD faculty graduated medical school earlier (mean years (standard deviation (SD)): 14.8 (6.0) versus 23.3 (10.6); p<0.0001), had more total publications (median (interquartile range (IQR)): 5 (2.0-18.3) versus 35 (15.0-79.0); p<0.0001), had higher number of citations (median (IQR): 61.0 (14.0-265.0) versus 655.0 (155.0-2267.0); p<0.001), and had a higher h-index (median (IQR): 3 (1.0-8.0) versus 12 (6.0-24.0); p<0.001). Negative binomial regression models accounting for years since graduation, gender, and degree were performed. At the assistant professor rank, MD surgeons had more total publications (exponential coefficient (CI): 2.24 (1.67-3.02); p<0.001), more citations (3.10 (2.20-4.11); p<0.001), and a higher h-index (1.93 (1.36-2.73); p<0.001). Similar trends were noted at the associate professor level with MD surgeons having more total publication (1.67 (1.00-2.79); p=0.049), more citations (3.63 (2.13-6.18); p<0.001), and higher h-index (1.93 (1.10-3.39); p=0.022).
    CONCLUSIONS: To address this discrepancy between DO and MD faculty surgeons, action must begin at the medical school and continue through residency. DO trainees need better access to mentorship and research support to foster an academic career.
    Keywords:  academic productivity; academic surgery; general surgery; medical education; osteopathic medicine; osteopathic surgery; publication; surgical education
    DOI:  https://doi.org/10.7759/cureus.24791
  29. Complement Ther Med. 2022 Jun 07. pii: S0965-2299(22)00048-6. [Epub ahead of print] 102846
       BACKGROUND: There are many studies that have interrogated the evolution and use of electroacupuncture (EA). We aimed to evaluate the research status, cooperation and development of EA in the past 10 years.
    METHODS: We obtained data on the EA from the Web of Science core collection database. CiteSpace 5.7. R1 software was used to assess research cooperation through analysis of authors, institutions and countries. In addition, keyword cluster analysis, references and burst detection were analyzed to explore research hotspots and trends in the field of EA.
    RESULTS: We included a total of 3, 019 citing literature and 78, 235 cited literature for analysis. The data showed that there has been a rise in the global number of EA studies in the past decade. Besides, the data demonstrated that China has made outstanding contribution in the development of EA. Whereas there is inter-agency cooperation in China, there is less cooperation with other countries. In addition, we showed frequent use of keywords such as "expression", "stimulation", or "pain". Besides, neuroscience was the main research area, followed by general medicine and oncology. Furthermore, with the improved research methods and technologies, there is enhanced overall quality of the studies.
    CONCLUSION: Taken together, our findings demonstrate a steady increase in the studies involving EA. However, the studies are unevenly distributed among countries and thus there is need for closer international cooperation.
    Keywords:  CiteSpace; Electroacupuncture; cooperation; research status
    DOI:  https://doi.org/10.1016/j.ctim.2022.102846
  30. Cancer Control. 2022 Jan-Dec;29:29 10732748221095946
       INTRODUCTION: Cancer is a major public health problem and a global leading cause of death where the screening, diagnosis, prediction, survival estimation, and treatment of cancer and control measures are still a major challenge. The rise of Artificial Intelligence (AI) and Machine Learning (ML) techniques and their applications in various fields have brought immense value in providing insights into advancement in support of cancer control.
    METHODS: A systematic and thematic analysis was performed on the Scopus database to identify the top 100 cited articles in cancer research. Data were analyzed using RStudio and VOSviewer.Var1.6.6.
    RESULTS: The top 100 articles in AI and ML in cancer received a 33 920 citation score with a range of 108 to 5758 times. Doi Kunio from the USA was the most cited author with total number of citations (TNC = 663). Out of 43 contributed countries, 30% of the top 100 cited articles originated from the USA, and 10% originated from China. Among the 57 peer-reviewed journals, the "Expert Systems with Application" published 8% of the total articles. The results were presented in highlight technological advancement through AI and ML via the widespread use of Artificial Neural Network (ANNs), Deep Learning or machine learning techniques, Mammography-based Model, Convolutional Neural Networks (SC-CNN), and text mining techniques in the prediction, diagnosis, and prevention of various types of cancers towards cancer control.
    CONCLUSIONS: This bibliometric study provides detailed overview of the most cited empirical evidence in AI and ML adoption in cancer research that could efficiently help in designing future research. The innovations guarantee greater speed by using AI and ML in the detection and control of cancer to improve patient experience.
    Keywords:  Scopus database; artificial intelligence; cancer; control; diagnosis; machine learning; prevention
    DOI:  https://doi.org/10.1177/10732748221095946
  31. Pediatr Radiol. 2022 Jun 06.
       BACKGROUND: More than half of paediatric radiology research presented at annual conference meetings between 2010-2012 remains unpublished. It is unclear if there are any improvements in this statistic despite some initiatives to improve awareness of the importance of evidence-based medicine.
    OBJECTIVES: To determine the abstract to publication rates (APRs) originating from recent paediatric radiology meetings, trends in research topics and factors associated with publication success.
    MATERIALS AND METHODS: All PubMed cited articles originating from oral presentations at European Society of Paediatric Radiology, Society for Paediatric Radiology or International Paediatric Radiology conferences between 2013-2016 were evaluated, and compared to those from previously published data from the same conferences dated 2010-2012. Publication rates, study design and topic as well as characteristics of the research group (e.g., author affiliations and number) were evaluated and compared between published and unpublished groups.
    RESULTS: The APR increased to 433/937 (46%) for abstracts presented between 2013-2016, compared to 300/715 (42%) in 2010-2012 (P=0.094). The largest proportion of publications comes from academic and tertiary centres (324/433 [75%]). International collaboration increased to 49/433 (11%) from 18/300 (6%) in 2010-2012 (P=0.018). A greater proportion of work was published within 12 months of conference: 41% in 2013-2016, compared to 29% in 2010-2012 (P=0.02). Paediatric Radiology remained the most popular destination journal, publishing 167/433 (39%) articles.
    CONCLUSION: There was a slight increase over time in the proportion of abstracts that resulted in publication, yet more than half of abstracts still do not reach publication status. Further work should identify how radiologists (particularly those outside tertiary and academic centres) can be supported to share their research.
    Keywords:  Abstracts; Congresses; Evidence-based medicine; Medical societies; Paediatric radiology; Publications; Research; Unpublished work
    DOI:  https://doi.org/10.1007/s00247-022-05397-5
  32. J Health Popul Nutr. 2022 Jun 10. 41(1): 25
       BACKGROUND: Coronavirus disease 2019 (COVID-19) has had a significant influence on nutritional status. There have been several studies on dietary habits and nutritional status in connection with COVID-19. However, there has been no research on the bibliometric analysis of these papers. Therefore, our objective was to assess the most relevant scientific research on nutrition and COVID-19, as well as to assess current hot themes.
    METHODS: We obtained data from the Scopus database on June 30, 2021. Qualitative and quantitative analyzes were conducted based on the Scopus. Collaboration and term analysis was performed using VOSviewer software version 1.6.16.
    RESULTS: At the time of data collection, there were 177,946 documents in COVID-19. Scopus found 1885 articles related to nutrition and COVID-19 after narrowing the search to those terms. This includes 1309 (69.44%) research articles, 268 (14.22%) review papers, and 308 other types of document. The USA was the largest producer, with 24.83% of the documents, followed by Italy with 11.88% (n = 224), the UK with 10.82% (n = 204), and China with 7.59% (n = 143). The most active institution was Sapienza Università di Roma (n = 30, 1.59%). The leading journal in COVID-19 nutrition research was Nutrients (n = 115, 6.10%). The article with 310 citations published by Di Renzo et al. in 2020 was the most influential reference. The hot topics were stratified into three clusters: (1) "Food security in the COVID-19 pandemic"; (2) "nutritional determinants and COVID-19 outcomes"; and (3) "changes in dietary habits during the COVID-19 pandemic and its consequences".
    CONCLUSIONS: This is the first bibliometric research to offer comprehensive information on COVID-19 and nutrition in the published literature. Research will likely be helpful to scholars and policymakers. This study sheds light on the growth and development of nutrition and covid-19-related research and should contribute to the expansion of the global frontier in the major hot topics, including "food security in the COVID-19 pandemic"; "nutritional determinants and COVID-19 outcomes"; and "changes in diet habits during the COVID-19 pandemic and its consequences".
    Keywords:  COVID-19; Nutrition; Scopus; VOSviewer
    DOI:  https://doi.org/10.1186/s41043-022-00304-y
  33. J Diabetes Metab Disord. 2022 Jun;21(1): 13-32
       Background: Modifying gut dysbiosis has achieved great success in managing type 2 diabetes mellitus (T2DM) and also T2DM affected the gut microbial composition.
    Objectives: To determine the research trend of scientific publications on the relationship between gut microbiota and T2DM through a bibliometric and descriptive approach.
    Method: We included originals and reviews related to both topics of gut microbiota and T2DM through searching in Scopus up to 31 December 2019 and then characterized their bibliometric profiles including the number of publications, citations, institutions, journals, countries, and the collaboration network of authors, countries, terms and keywords. Moreover, we performed a descriptive evaluation of the clinical trials based on their intervention type and its influence on gut dysbiosis.
    Results: We achieved 877 articles (436 originals and 441 reviews) according to our inclusion criteria. The annual publications were constantly increased over time and reached 220 publications in 2019. Out of 436 original articles, 231 animal studies and 174 human studies were found. The majority of human studies were clinical trials (n = 77) investigating the influence of drugs (n = 21), regimens (n = 21), pre/pro/symbiotic (n = 19), surgeries (n = 15), or both drug and regimen (n = 1) on gut dysbiosis. Roux-en-Y gastric bypass and metformin were assessed the most in these trials. Obesity side by side T2DM has been assessed in this area of literature based on term and keyword analyses showing their possible similar pathways mediated by gut microbiota.
    Conclusion: The exponentially growing documents on gut microbiota and T2DM had been published during the last decade and revealed gut microbiota alteration mediated antidiabetic effect of many interventions. Thus, we suggest other researchers to consider this pathway in efficacy assessment of therapeutic modalities and to find the optimal composition of gut microbiota that guarantees healthy insulin sensitivity.
    Supplementary Information: The online version contains supplementary material available at 10.1007/s40200-021-00920-1.
    Keywords:  Bibliometrics; Gut microbiota; Microbiome; Probiotic; Scientometrics; Type 2 diabetes
    DOI:  https://doi.org/10.1007/s40200-021-00920-1
  34. Biomed Res Int. 2022 ;2022 3755460
      This study analyzed the research hotspots and frontiers of exercise rehabilitation among cancer patients via CiteSpace. Relevant literature published in the core collection of the Web of Science (WoS) database from January 1, 2000, to February 6, 2022, was searched. Further, we used CiteSpace5.8R1 to generate a network map and identified top authors, institutions, countries, keywords, and research trends. A total of 2706 related literature were retrieved. The most prolific writer was found to be Kathryn H Schmitz (21 articles). The University of Toronto (64 articles) was found to be the leading institution, with the United States being the leading country. Further, "rehabilitation," "exercise," "quality of life," "cancer," and "physical activity" were the top 5 keywords based on frequency; next, "disability," "survival," "fatigue," "cancer," and "rehabilitation" were the top 5 keywords based on centrality. The keyword "fatigue" was ranked at the top of the most cited list. Finally, "rehabilitation medicine," "activities of daily living," "lung neoplasm," "implementation," "hospice," "exercise oncology," "mental health," "telemedicine," and "multidisciplinary" are potential topics for future research. Our results show that the research hotspots have changed from "quality of life," "survival," "rehabilitation," "exercise," "cancer," "physical therapy," "fatigue," and "breast cancer" to "exercise oncology," "COVID-19," "rehabilitation medicine," "inpatient rehabilitation," "implementation," "telemedicine," "lung neoplasm," "telehealth," "multidisciplinary," "psycho-oncology," "hospice," "adapted physical activity," "cancer-related symptom," "cognitive function," and "behavior maintenance." Future research should explore the recommended dosage and intensity of exercise in cancer patients. Further, following promotion of the concept of multidisciplinary cooperation and the rapid development of Internet medical care, a large amount of patient data has been accumulated; thus, how to effectively use this data to generate results of high clinical value is a question for future researchers.
    DOI:  https://doi.org/10.1155/2022/3755460
  35. Surg Neurol Int. 2022 ;13 223
       Background: With changes in European and the US academia and education systems, research has become a measurement to define academic productivity, as it is a crucial component in the process of becoming a well-trained neurosurgeon. In this recent study, we aimed to reveal the current status and challenges facing neurosurgical research in Indonesia.
    Methods: An open-access PubMed MEDLINE database search was performed to reveal all articles published by Indonesian Neurosurgeons from 1980 to July 2021. The detail was extracted to the following parameters: academia center or city of the study, year of publication, study type, topic, journal, institution and Q status, first author, article citation, international collaboration, and the working field. These data were processed and examined.
    Results: During 1980 and July 2021, a total of 242 PubMed-indexed papers were published from Indonesia. The number of publications started increasing significantly from 2010 to 2021, with an average of 19 papers per year since 2010. Most of the studies came from Bandung (22.7%), with Universitas Padjadjaran as the center of the study. According to the paper type, the majority of the articles were basic and clinical research (45.5%). The most common study type was case reports (33.5%). Neurotrauma (21.9%) was the most frequent topic followed by neuro-oncology (21.07%) and spine trauma (11.98%).
    Conclusion: Published articles in the neurosurgery field in Indonesia has shown a higher, promising trend. Despite many challenges faced in the process, there was significant progress in the past few decades compared to the previous ones. A comprehensive deliberate plan and multidisciplinary effort that focuses on overcoming the problems regarding defining academic productivity is needed for further improvement of neurosurgical care in Indonesia.
    Keywords:  Indonesia; Neurosurgery; PubMed; Publications
    DOI:  https://doi.org/10.25259/SNI_908_2021
  36. Stud Health Technol Inform. 2022 Jun 06. 290 494-498
      Bibliometric analysis provides a summary for research reported in scientific literature. This can highlight pattens and trends in academic research areas, and assist in research directions. Recent growing requirements for efficient communications and increased user learning needs in the health domain, has instigated mass exploitation of chatbots. 2148 documents were analysed to show a shift in research focus around the year 2016. The rate of documents produced in the last few years is more than the collective 20 year period, and future outputs may soar. The emergence of machine and deep learning technology with chatbot usage suggested research opportunity to be exploited in techniques which embed advanced AI abilities. Key authors still spearhead the research direction but a new wave of outputs will further disperse topics into advanced techniques such as personalised disease detections and sophisticated interface that significantly mask any artificiality to their composition.
    Keywords:  Artificial Intelligence; Bibliometrics; Embodied Conversational Agents; Trends
    DOI:  https://doi.org/10.3233/SHTI220125
  37. Environ Sci Pollut Res Int. 2022 Jun 07.
      A descriptive analysis of 416 documents was performed using bibliometric techniques, in order to gather existing knowledge in circular economy focusing on waste management (2007-2020). The results of this study indicate that annual scientific production increased 94% in the last 5 years, highlighting the countries of Italy, Spain, the UK, China, Brazil, and India. Between the most cited documents stand out those related to calorific value of municipal solid waste and waste to energy technologies for achieving circular economy systems. The conceptual analysis indicates strong linkage between circular economy and sustainable production, waste management, and recycling. Emerging research trends evolved from processes and industry-oriented approach (2017) toward waste management, recycling, and circular economy (2019) and sustainable development and urban solid waste (2020). The analysis reveals five dominant circular economy and waste research themes: (1) greenhouse gases; (2) circular economy, waste management, and recycling; (3) life cycle; (4) waste treatment; and (5) anaerobic digestion and recovery; trends research are related to policy interventions, and enforcement of authorities' regulations to foster circular economy transition, increase the use of practices of recycling and reusing, as well as discourage a growing consumption culture. Results found denote the challenge represented by the implementation of comprehensive policies in circular economy. The above being a key alternative for green recovery in response to the current COVID-19 pandemic.
    Keywords:  Bibliometric, Environmental science; COVID-19; Circular economy; Strategy; Sustainable development; Waste management
    DOI:  https://doi.org/10.1007/s11356-022-18703-3
  38. Clin Transl Allergy. 2022 Jun;12(6): e12170
       Background: The past decade has seen a substantial rise in the employment of modern data-driven methods to study atopic dermatitis (AD)/eczema. The objective of this study is to summarise the past and future of data-driven AD research, and identify areas in the field that would benefit from the application of these methods.
    Methods: We retrieved the publications that applied multivariate statistics (MS), artificial intelligence (AI, including machine learning-ML), and Bayesian statistics (BS) to AD and eczema research from the SCOPUS database over the last 50 years. We conducted a bibliometric analysis to highlight the publication trends and conceptual knowledge structure of the field, and applied topic modelling to retrieve the key topics in the literature.
    Results: Five key themes of data-driven research on AD and eczema were identified: (1) allergic co-morbidities, (2) image analysis and classification, (3) disaggregation, (4) quality of life and treatment response, and (5) risk factors and prevalence. ML&AI methods mapped to studies investigating quality of life, prevalence, risk factors, allergic co-morbidities and disaggregation of AD/eczema, but seldom in studies of therapies. MS was employed evenly between the topics, particularly in studies on risk factors and prevalence. BS was focused on three key topics: treatment, risk factors and allergy. The use of AD or eczema terms was not uniform, with studies applying ML&AI methods using the term eczema more often. Within MS, papers using cluster and factor analysis were often only identified with the term AD. In contrast, those using logistic regression and latent class/transition models were "eczema" papers.
    Conclusions: Research areas that could benefit from the application of data-driven methods include the study of the pathogenesis of the condition and related risk factors, its disaggregation into validated subtypes, and personalised severity management and prognosis. We highlight BS as a new and promising approach in AD and eczema research.
    Keywords:  artificial intelligence; atopic dermatitis; bibliometric analysis; statistics
    DOI:  https://doi.org/10.1002/clt2.12170
  39. J Bus Res. 2022 Oct;149 795-810
      The unprecedented impact of COVID-19 on the global economy as well as on the academic literature. Since early 2020, management researchers have made exceptional efforts to extend our understanding of the pandemic's effect on consumption, sourcing, the workplace, and corporate strategies. The present study uses a bibliometric design to analyze the extensive database of COVID-19 studies in management literature generated over a 2-year period. The analysis focused on the performance of research constituents, thematic analysis of the literature, categorization of the themes at a societal, organizational, and individual level, and finally, a deep analysis of future research calls in the body of literature.
    Keywords:  Bibliometric study; Business; COVID-19; Literature review; Management
    DOI:  https://doi.org/10.1016/j.jbusres.2022.05.082
  40. Stud Health Technol Inform. 2022 Jun 06. 290 902-906
      Digital health information systems are quickly replacing paper systems worldwide. This study examined scholarly work reflecting how ethical considerations for health information systems (HISs) have evolved over time, with particular interest in the contributions from low- and middle-income country (LMIC) institutions. We systematically searched four research databases for terms related to HISs, ethics, and LMICs; and identified 601 relevant articles published from 1975 through 2019. The included publications were produced by 1,000 authors from more than 700 institutions. However, only 30 publications were co-authored by researchers from both an LMIC and a high-income country (HIC). Most publications pertained to data security. There is an acute need to address a wider array of HIS ethics topics, including those that may be unique to LMIC resource constraints. We recommend more collaborations between LMIC and HIC institutions to address the full range of HIS ethical concerns in LMICs.
    Keywords:  Developing Countries; Ethics; Information Systems
    DOI:  https://doi.org/10.3233/SHTI220210
  41. Environ Sci Pollut Res Int. 2022 Jun 09.
      Mine fire has always been a serious disaster in coal industry; many academic achievements have poured out in the past two decades for solving this problem. In this study, visual analysis was conducted to grasp the hotspots and development trend of mine fire research. Papers that published in 1999-2020 were retrieved as the data basis from Web of Science, and CiteSpace was used to carry out knowledge map analysis. The results shown that number of papers has increased steadily since 2005 and achieved explosive growth since 2014. Deng J is the first published author among many scholars. China, the USA, and Australia are active areas in mine fire research and China University of Mining and Technology ranks first in this field. The highest co-occurrence frequency keyword is "spontaneous combustion." International Journal of Coal Geology and Fuel provide guidance for mine fire research. Fire prevention technology, low carbon, ecology, and sustainable development are the hot research in recent years. The prevention and control of mine fire from combustion mechanism should be further strengthened.
    Keywords:  CiteSpace; Coal fire; Coal spontaneous combustion; Visual analysis
    DOI:  https://doi.org/10.1007/s11356-022-20993-6
  42. Therapie. 2022 May 19. pii: S0040-5957(22)00096-8. [Epub ahead of print]
      
    Keywords:  Bibliometrics; COVID-19; Countries; Gini Index; Inequality; Publications; Web of Science
    DOI:  https://doi.org/10.1016/j.therap.2022.05.004
  43. Int J Environ Res Public Health. 2022 May 25. pii: 6440. [Epub ahead of print]19(11):
       OBJECTIVES: This study aimed to visualize the evidence in the global research on health education to better improve the nation's health literacy and to guide future research.
    METHOD: We searched the Web of Science (Core Collection) electronic databases. The search strategies: topic: ("Health Education" OR "Education, Health" OR "Community Health Education" OR "Education, Community Health" OR "Health Education, Community") AND document: (Article) AND language:(English). Articles of evidence from January 2011 to December 2021 with those words in the title or abstract or keywords will be included in this review. We used the Citespace 5.6.R5 (64-bit) to investigate and determine the thematic patterns, and emerging trends of the knowledge domain, and presented a narrative account of the findings.
    RESULT: We analyzed 10,273 eligible articles. It showed that BMC Public Health displays the most prolific journals. Author MARCO PAHOR is highlighted in health education. The University of Sydney has published the most studies about health education. The USA plays an important role in these studies. Specifically, the visualization shows several hotspots: disease prevalence surveys and a specific population of knowledge, attitude and practice surveys, health intervention, chronic and non-communicable management, youth-health action, sexual and reproductive health, and physical activity promotion. Furthermore, document co-citation analysis indicated that there are 10 main clusters, which means the research front in health education. Meanwhile, by the citation detected, COVID-19, has achieved universal health coverage in related studies, however, public health education and the health workforce might be more popular in the coming years.
    CONCLUSION: Health education is an effective measure to shift the concept of public health and improve healthy living standards. The present study facilitates an extensive understanding of the basic knowledge and research frontiers that are pivotal for the developmental process of health education and allows scholars to visualize the identification modes and tendencies.
    Keywords:  COVID-19; CiteSpace; health education; health portion; scientometric
    DOI:  https://doi.org/10.3390/ijerph19116440
  44. JTCVS Open. 2022 May 13.
       Objectives: The coronavirus disease 2019 (COVID-19) pandemic negatively impacted cardiothoracic (CT) surgery, with changes in clinical, academic, and personal responsibilities. We hypothesized that the pandemic may disproportionately impact female academic CT surgeons, accentuating preexisting sex disparities. This study assessed sex differences in authorship of 2 major CT surgery journals during the early part of the COVID-19 pandemic.
    Methods: All accepted submissions to The Annals of Thoracic Surgery and The Journal of Thoracic and Cardiovascular Surgery between April and August of 2019 and the same period in 2020 were reviewed. Article type and author characteristics were obtained from the journals. Author sex was predicted using a validated multinational database (Genderize.io) and verified with authors' institutional and public professional profiles.
    Results: In total, 1106 submissions were accepted during the 2019 period, whereas 900 articles (18.6% decrease) were accepted during the same period in 2020. Original research articles comprised 33.3% of the 2019 articles but only 4.9% of the 2020 articles. Female authors contributed to 39.3% (23.1% original research and 16.2% nonoriginal articles) and 29.4% (3.3% original research and 26.1% nonoriginal articles) of articles during the 2019 and 2020 periods, respectively. This represents a marked change in the type of articles that female authors contributed to.
    Conclusions: Early on during the COVID-19 pandemic, the type of articles accepted, and authorship demographic changed. There was a decrease in contribution of female-authored CT surgery articles submitted to both journals, especially for original research. Future research will elucidate the long-term impact of the pandemic on sex disparities in academic productivity.
    Video Abstract:
    Keywords:  Ann Thor Surg, The Annals of Thoracic Surgery; COVID-19; COVID-19, coronavirus disease 2019; CT, cardiothoracic; JTCVS, The Journal of Thoracic and Cardiovascular Surgery; diversity; equity; scholarship; women in surgery
    DOI:  https://doi.org/10.1016/j.xjon.2022.05.005
  45. Front Psychol. 2022 ;13 920920
      Contemporarily, depression has become a common psychiatric disorder that influences people's life quality and mental state. This study presents a systematic review analysis of depression based on a hierarchical structure approach. This research provides a rich theoretical foundation for understanding the hot spots, evolutionary trends, and future related research directions and offers further guidance for practice. This investigation contributes to knowledge by combining robust methodological software for analysis, including Citespace, Ucinet, and Pajek. This paper employed the bibliometric methodology to analyze 5,000 research articles concerning depression. This current research also employed the BibExcel software to bibliometrically measure the keywords of the selected articles and further conducted a co-word matrix analysis. Additionally, Pajek software was used to conduct a co-word network analysis to obtain a co-word network diagram of depression. Further, Ucinet software was utilized to calculate K-core values, degree centrality, and mediated centrality to better present the research hotspots, sort out the current status and reveal the research characteristics in the field of depression with valuable information and support for subsequent research. This research indicates that major depressive disorder, anxiety, and mental health had a high occurrence among adolescents and the aged. This present study provides policy recommendations for the government, non-governmental organizations and other philanthropic agencies to help furnish resources for treating and controlling depression orders.
    Keywords:  depression; hierarchical structure; knowledge network; visualization network; word frequency statistical analysis
    DOI:  https://doi.org/10.3389/fpsyg.2022.920920
  46. Proc Natl Acad Sci U S A. 2022 Jun 07. 119(23): e2200927119
      With teams growing in all areas of scientific and scholarly research, we explore the relationship between team structure and the character of knowledge they produce. Drawing on 89,575 self-reports of team member research activity underlying scientific publications, we show how individual activities cohere into broad roles of 1) leadership through the direction and presentation of research and 2) support through data collection, analysis, and discussion. The hidden hierarchy of a scientific team is characterized by its lead (or L) ratio of members playing leadership roles to total team size. The L ratio is validated through correlation with imputed contributions to the specific paper and to science as a whole, which we use to effectively extrapolate the L ratio for 16,397,750 papers where roles are not explicit. We find that, relative to flat, egalitarian teams, tall, hierarchical teams produce less novelty and more often develop existing ideas, increase productivity for those on top and decrease it for those beneath, and increase short-term citations but decrease long-term influence. These effects hold within person-the same person on the same-sized team produces science much more likely to disruptively innovate if they work on a flat, high-L-ratio team. These results suggest the critical role flat teams play for sustainable scientific advance and the training and advancement of scientists.
    Keywords:  group structure; hierarchy; networks; science of science; teams
    DOI:  https://doi.org/10.1073/pnas.2200927119
  47. Brain Commun. 2022 ;4(3): fcac077
      The persistent underrepresentation of women in Science, Technology, Engineering, Mathematics and Medicine (STEMM) points to the need to continue promoting the awareness and understanding of this phenomenon. Being one of the main outputs of scientific work, academic publications provide the opportunity to quantify the gender gap in science as well as to identify possible sources of bias and areas of improvement. Brain Communications is a 'young' journal founded in 2019, committed to transparent publication of rigorous work in neuroscience, neurology and psychiatry. For all manuscripts (n = 796) received by the journal between 2019 and 2021, we analysed the gender of all authors (n = 7721) and reviewers (n = 4492). Overall, women were 35.3% of all authors and 31.3% of invited reviewers. A considerably higher proportion of women was found in first authorship (42.4%) than in last authorship positions (24.9%). The representation of women authors and reviewers decreased further in the months following COVID-19 restrictions, suggesting a possible exacerbating role of the pandemic on existing disparities in science publication. The proportion of manuscripts accepted for publication was not significantly different according to the gender of the first, middle or last authors, meaning we found no evidence of gender bias within the review or editorial decision-making processes at Brain Communications.
    Keywords:  STEMM; gender gap; neuroscience; science publication; women in science
    DOI:  https://doi.org/10.1093/braincomms/fcac077
  48. Chemosphere. 2022 Jun 03. pii: S0045-6535(22)01623-X. [Epub ahead of print] 135130
      
    Keywords:  Bibliometric; Per- and polyfluoroalkyl substance; Perfluorochemical; Perfluorooctane sulfonate; Perfluorooctanoic acid; Search term
    DOI:  https://doi.org/10.1016/j.chemosphere.2022.135130
  49. J Am Acad Dermatol. 2022 Jun 03. pii: S0190-9622(22)00905-7. [Epub ahead of print]
      
    Keywords:  Underrepresented in medicine; academic medicine; dermatology; publications; research output; residency
    DOI:  https://doi.org/10.1016/j.jaad.2022.05.060
  50. Int J Environ Res Public Health. 2022 May 27. pii: 6561. [Epub ahead of print]19(11):
      The study of threshold levels of heavy metals in soil is essential for the assessment and management of soil environmental quality. This study reviewed the influencing factors, the derivation, and application aspects of heavy metals' threshold values comprehensively by a combination of bibliometric analysis and scientific knowledge mapping. A total of 1106 related studies were comprehensively extracted from the Web of Science database during the period from 2001 to 2020. The results showed that the publication output has been growing strongly. An analysis on the subject, journal, country, and institution was carried out to demonstrate the development and evolution of this research branch during the two decades. According to high-frequency keywords analysis, external factors (e.g., soil physicochemical properties) and internal factors (e.g., crop genotype) can affect heavy metal threshold values in the soil-crop system. The current methods mainly include the Point model (e.g., evaluation factor method), the Probability model (e.g., species sensitivity distribution method), and the Empirical model (e.g., ecological environment effect method). A threshold study can be applicable to the risk assessment for soil heavy metal contamination in order to determinate the soil pollution degree and its spatial and temporal distribution characteristics. Moreover, challenges and prospects of the study of heavy metal threshold values are proposed, indicating that research should focus on the relationships between human health risks and the established threshold values of heavy metals in the soil, long-term field trials and bioavailability of heavy metals for the derivation of the thresholds, and the establishment of more scientific and rational soil environmental benchmarks.
    Keywords:  crop; heavy metal; risk assessment; soil; threshold
    DOI:  https://doi.org/10.3390/ijerph19116561
  51. J Surg Res. 2022 Jun 07. pii: S0022-4804(22)00319-5. [Epub ahead of print]278 364-374
       INTRODUCTION: Sex bias is present in clinical research resulting in disparities in the treatment of women. Our objective was to identify the prevalence of sex inclusiveness of participants in human clinical trials after the passage of National Institutes of Health (NIH) and United States Congress policies in 2015 and 2016 to increase female enrollment in clinical research.
    METHODS: We performed an observational analysis of data from registered clinical trials published in three high-impact biomedical journals from January 1, 2015 to December 31, 2019.
    RESULTS: One thousand four hundred and forty two manuscripts with 4,765,783 human subjects were included for analysis. Significantly more males (56%) than females (44%) were included in all three journals (P < 0.0001). Sex matching ≥ 80% was found in 24.6% of publications. Industry funded 43.7% of all studies enrolling significantly more males than females (60.8% versus 39.2%, P < 0.0001). NIH funded 10.2% of studies enrolling significantly more females than males (52.7% versus 47.3%, P < 0.0001). North America and Europe contributed 82.6% of the studies with each enrolling significantly more males than females (P < 0.0001). The United States was the country contributing the most studies (36.1%), enrolling significantly more males than females (55.5% versus 45.5%, P < 0.0001). Cardiovascular disease was the subject area of the most manuscripts among medical specialties (19%), enrolling significantly more males than females (64.9% versus 35.1%, P < 0.0001). Studies analyzed by clinical trial phase, type, trial, and allocation enrolled significantly more males than females (P < 0.0001).
    CONCLUSIONS: Sex bias remains prevalent in human clinical research trials. Improvements have been made in NIH-funded clinical trials; however, this constitutes a small percentage of overall studies.
    Keywords:  Clinical research; Disparity; Sex bias; Women
    DOI:  https://doi.org/10.1016/j.jss.2022.04.077
  52. Environ Sci Pollut Res Int. 2022 Jun 09.
      Analyzing the feasibility of fuel vehicle transition will be conducive to the realization of the carbon neutralization goal. However, at present, there are few studies specifically aimed at the transition of fuel vehicles. Therefore, this study first analyzed the necessity for the transition of fuel vehicles and then used CiteSpace to analyze 2081 articles in the core Web of Science database in the past decade with "fuel vehicle emission reduction" as the search keyword. After clarifying the research context and development frontier of fuel vehicle emission reduction, we found that most of the literature with the research theme on this topic ends with the research of electric vehicles. Therefore, we took new energy vehicles represented by electric vehicles as the starting point to explore the realization path of carbon neutralization by analyzing the development dilemma and residents' feedback on electric vehicles. Finally, the research review and research prospects were carried out. The study found that although the development of new energy vehicles has made obvious progress at this stage, there are still some problems in comprehensively promoting electric vehicles, such as battery power, charging facilities, and the weak willingness of consumers to accept electric vehicles. Therefore, improving the usage efficiency of new energy vehicles can more effectively force fuel vehicles and new energy vehicles to complete the relay from the perspective of market attraction. This study will provide a more scientific solution and implementation path for the transition of fuel vehicles in various countries.
    Keywords:  Carbon neutralization; Citespace; Fuel vehicle transition path; Hotspot and research edge; New energy vehicles
    DOI:  https://doi.org/10.1007/s11356-022-21096-y
  53. J Foot Ankle Surg. 2022 Apr 29. pii: S1067-2516(22)00120-X. [Epub ahead of print]
      Continuing medical education (CME) is an important element to maintain licensing requirements, enhance professional competence, and disseminate up to date, evidence-based, treatment recommendations. A key resource of CME are the 2 annual society meetings hosted by the American College of Foot and Ankle Surgeons (ACFAS) and American Orthopedic Foot and Ankle Society (AOFAS). It is assumed that the selected speakers at these meetings are content experts, providing validated expertise on treatment recommendations, rather than anecdotal experience or opinion. Across all medical specialists, peer-reviewed publication(s) on a particular subject matter have long bestowed the ultimate validity of "expertise." The purpose of this study was to assess the incidence of scholarly publication for invited speakers at the ACFAS and AOFAS annual meetings from 2016 to 2020, in relation to the topic they were selected to present. A review of invited lectures given at the ACFAS and AOFAS annual meetings from 2016 to 2020 was conducted, and lecturer demographics were categorized into predetermined content areas for assessment. Selected speakers were individually cross-referenced with content-specific peer-reviewed published literature, and overall h-index using Scopus. Topic and society specific comparisons were then made. Overall, 1028 lectures were identified during the temporal period. Only 300 (29.18%) presentations were given by a speaker with least one or more publication on the society specific lecture-topic presented. The greatest proportion of lecturers with content-specific publications was Charcot reconstruction (67.57%) followed by ankle fusion/replacement (55%). The average presenter h-index was greatest among total ankle replacement/ankle fusion (12.16 ± 6.90) and Charcot reconstruction (11.27 ± 7.10) content. The results of the present study illustrate a disparity of expertise among different content areas. While both meetings provide well-published lecturers, this study reveals areas for improvement.
    Keywords:  academic medicine; continuing medical education; h-index; manuscript; research
    DOI:  https://doi.org/10.1053/j.jfas.2022.04.011
  54. J Surg Res. 2022 Jun 07. pii: S0022-4804(22)00220-7. [Epub ahead of print]
      
    DOI:  https://doi.org/10.1016/j.jss.2022.02.057
  55. Stud Health Technol Inform. 2022 Jun 06. 290 287-291
      The amount of available scientific literature is increasing, and studies have proposed various methods for evaluating document-document similarity in order to cluster or classify documents for science mapping and knowledge discovery. In this paper, we propose hybrid methods for bibliographic coupling (BC) and linear evaluation of text or content similarity: We combined BC with BM25, Cosine, and PMRA to compare their performances with single methods in paper recommendation tasks using TREC Genomics Track 2005datasets. For paper recommendation, BC and text-based methods complement each other, and hybrid methods were better than single methods. The combinations of BC with BM25 and BC with Cosine performed better than BC with PMRA. The performances were best when the weights of BM25, Cosine, and PMRA were 0.025, 0.2, and 0.2, respectively, in hybrid methods. For paper recommendation, the combinations of BC with text-based methods were better than BC or text-based methods used alone. The choice of method should depend on the actual data and research needs. In the future, the underlying reasons for the differences in performance and the specific part or type of information they complement in text clustering or recommendation need to be examined.
    Keywords:  Citation-based methods; hybrid methods; text-based methods
    DOI:  https://doi.org/10.3233/SHTI220080