bims-evares Biomed News
on Evaluation of research
Issue of 2021‒07‒25
fifty-seven papers selected by
Thomas Krichel
Open Library Society

  1. Placenta. 2021 Jul 10. pii: S0143-4004(21)00198-3. [Epub ahead of print]112 54-61
      Molar pregnancy is a gestational trophoblastic disease characterized by an abnormal growth of placental tissues because of a nonviable pregnancy. The understanding of the pathophysiology and management of molar pregnancy has significantly increased in the recent years. This study aims to determine the characteristics and trends of published articles in the field of molar pregnancy through a bibliometric analysis. Using the Scopus database, we identified all original research articles on molar pregnancy from 1970 to 2020. Bibliographic and citation information were obtained, and visualization of collaboration networks of countries and keywords related to molar pregnancy was conducted using VOSviewer software. We obtained a total of 2009 relevant papers published between 1970 and 2020 from 80 different countries. The number of publications continued to increase through the years. However, the number of publications in molar pregnancy is still low compared to the other research fields in obstetrics and gynecology. The USA (n = 421, 32.1%), Japan (n = 199, 15.2%), and the UK (n = 191, 14.6%) contributed the greatest number of publications in this field. The top journals which contributed to the field of molar pregnancy include AJOG (n = 91), Obstetrics and Gynecology (n = 81), and the Gynecologic Oncology (n = 57). The most cited articles in molar pregnancy include papers on the genetics and chromosomal abnormalities in molar pregnancies. The focus of current research in this field was on elucidating the molecular mechanism of hydatidiform moles. Our bibliometric analysis showed the global research landscape, trends and development, scientific impact, and collaboration among researchers in the field of molar pregnancy.
    Keywords:  Bibliometrics; Citation analysis; Gestational trophoblastic disease; Hydatidiform mole; Obstetrics
  2. Eur J Radiol. 2021 Jul 08. pii: S0720-048X(21)00322-3. [Epub ahead of print]142 109841
      PURPOSE: To characterize the global research trend in radiology departments based on bibliometric indicators.MATERIAL AND METHOD: As a source of information, Science Citation Index Expanded and Journal Citation Reports from Web of Science Core Collection (WoSCC) were used. Annual trends, journals of publication, subject categories of journals, collaboration indexes between authors and institutions, network of cowords and most cited papers were identified and analysed. The period of study was 2009-2018.
    RESULTS: 283,587 downloaded papers were analysed. The number of articles was increasing, as well as the percentage of funded works. Papers were published in 7314 different journals, being the most productive Plos One (5077), followed by American Journal of Roentgenology (4602) and European Radiology (3644). Most productive subject categories of journals were Radiology, Nuclear Medicine & Medical Imaging (86,568 papers), Clinical Neurology (29,722) and Surgery (23,564). International collaboration has increased more than 5 points, from 15.2% in 2009 to 20.7% in 2018.
    CONCLUSIONS: Most cited articles were published in high impact journals outside the scope of diagnostic imaging. Most influential topics included technical innovations within imaging modalities. MRI replaced conventional radiography and CT as the imaging technique of choice in imaging research.
    Keywords:  Bibliometrics; Diagnostic imaging; Highly cited; Scientific collaboration; Social network analyses; Trending topics
  3. Int J Environ Res Public Health. 2021 Jul 02. pii: 7095. [Epub ahead of print]18(13):
      Bibliometric analysis is a well-established approach to quantitatively assess scholarly productivity. However, there have been few assessments of research productivity on systemic lupus erythematosus (SLE) to date. The aim of this study was to analyze global research productivity through original articles published in journals indexed by the Web of Science from 1971 to 2020. Bibliometric data was obtained from the Science Citation Index Expanded in the Web of Science Core Collection database. Only original articles published between 1971 and 2020 on SLE were included in the analysis. Over the 50-year period, publication production in SLE research has steadily increased with a mean annual growth rate of 8.0%. A total of 44,967 articles published in 3435 different journals were identified. The journal Lupus published the largest number of articles (n = 3371; 8.0%). A total of 148 countries and regions contributed to the articles. The global productivity ranking was led by the United States (n = 11,244, 25.0%), followed by China (n = 4893, 10.9%). A three-field plot showed that the Oklahoma Medical Research Foundation and the Johns Hopkins University together contributed 18.5% of all articles from the United States. A co-occurrence network analysis revealed five highly connected clusters of SLE research. In conclusion, this bibliometric analysis provided a comprehensive overview of the status of SLE research, which could enable a better understanding of the development in this field in the past 50 years.
    Keywords:  bibliometric analysis; bibliometrix; network analysis; research hotspots; research trends; systemic lupus erythematosus
  4. J Biol Regul Homeost Agents. 2021 Mar-Apr;35(2 Suppl. 1):35(2 Suppl. 1): 97-105
      Bibliometric Analysis researches and analyses the quantitative data derived from scientific publications through the empirical evidence of scientific activity generated by collaborating authors through the final product of their research: the scientific article. In scientific society, the concept of impact factor is probably the most widely used in bibliometric construction. To assess the scientometrics of three high-impact factor periodontal journals and identify the contribution of India in these most productive journals over three years (Jan 2018 - Dec 2020) and to know the most influential topics researched. A retrospective observational study was conducted for the Journal of Clinical Periodontology, Journal of Periodontology, and Journal of Periodontal Research. All issues of 2018, 2019, and 2020 were electronically and hand searched for the following parameters: Number of papers, affiliated organizations, and countries, topics reported, and contribution of Indian authors. The data were organized and analyzed with descriptive statistics using SPSS software (version 21.0). In total 469 articles were published by Journal of Periodontology, followed by 454 articles in Journal of Clinical Periodontology and 287 articles in Journal of Periodontal Research. In all the three journals, China had the maximum contributions, succeeded by USA. India has published maximum number of articles in the Journal of Periodontal Research. When analysed, although less as compared to the western counterparts, an increasing trend in the publications is seen in case of India.
    Keywords:  bibliometric analysis; impact factor; periodontics; scientometrics
  5. Am J Pharm Educ. 2021 Jul 22. 8606
      Objective. To determine the long-term change in the Altmetric Attention Score (AAS), and its components, as well as the impact of higher AAS on citation count for articles published in major pharmacy journals. Methods. This study evaluated articles from pharmacy journals ranked in the top 10% according to their AAS in the year 2017. Correlation between the AAS and number of citations (through November 2020) was assessed using the Spearman's correlation test. A Kruskal-Wallis 1-way analysis of variance was used to compare the AAS across journals. Results. The median 3-year AAS and citation count per article was 20 (25th, 75th percentile = 15, 28) and 11 (6, 18), respectively. Between November 2018 and November 2020, there was no significant change in the median AAS for the 137 included articles. The only change in the AAS components was an increase in the number of Mendeley readers (22 [13, 34]). The median number of citations per article also increased (8 [4, 14]). We found a significant association between the 3-year AAS and the 3-year number of citations (adjR2=0.06). The 3-year number of Mendeley readers was associated with an increase in the 3-year number of citations (adjR2=0.36). The mean 3-year AAS was highest with articles published in the Journal of the American Pharmacists Association, while the mean 3-year number of citations was highest for articles published in Pharmacotherapy Conclusion. Higher AAS scores appear to be associated with the number of citations for articles published in major pharmacy journals within three years of publication.
    Keywords:  alternative metrics; bibliometrics; journal impact factor; pharmacy; publications
  6. Environ Sci Pollut Res Int. 2021 Jul 24.
      Ambio is a leading journal in environmental science and policy, sustainable development, and human-environment interactions. The paper at hand aims to run a bibliometric analysis to inspect the main publications features of Ambio in Science Citation Index Expanded SCI-EXPANDED. For this scope, a bibliometric survey has been carried out to investigate the journal's historic characteristics in the Web of Science (WoS) categories of environmental sciences and environmental engineering for Ambio from 1980 to 2019. These are the categories for which the journal has been indexed throughout the indexed time frame. The paper proposes technical and methodological innovations, including improvements in the methods and original characteristics analyzed. Documents published in Ambio were searched out from SCI-EXPANDED. Six publication indicators were applied to evaluate the publication performance of countries, institutes, and authors. Three citation indicators were used to compare publications. As a parameter, the journal impact factor contributor was applied to compare the most frequently cited publications. The journal impact factor contributing publications were also discussed. Results show that Sweden ranked top in six publication indicators and that the top three productive institutes were located in Sweden. A low percentage of productive authors emerged as a journal impact factor contributor. Similarly, a low relationship between the IF contributing publications and the highly cited publications was also found. Less than half of the top 100 highly cited publications in Ambio did not lie within the high impact in most the recent year of 2019. Three members of the advisory board in Ambio were the main productive authors. T.V. Callaghan contributed to most of the publications while papers published by J. Rockstrom as first and corresponding author contributed the most to the journal impact factor. An article authored by Steffen et al. (2007) scored the highest total citations in 2019.
    Keywords:  Ambio; Bibliometrics; C year; CPP year; Journal impact factor contributing indicators; Journal impact factor contributing papers; Journal impact factor contributors; SCI-EXPANDED; TC year
  7. Semin Ophthalmol. 2021 Jul 23. 1-5
      Objectives: Systematically summarize the trend of research and the orientation of macular edema in recent decades by analyzing the characteristics of the 100 top-ranked articles.Methods: The 100 most cited papers on macular edema published from January 1, 1950, to August 27, 2020, were reviewed by Web of Science (including the Scientific Citation Index). The each article is analyzed by extracting information such as the publication date, journal, author, country of origin, institution, number of citations, research topics, and research design types. Results: Among the 100 articles, the highest cited number was 1907, and the lowest cited number was 166. These articles were published in 18 journals from 1983 to 2016, as well as in 10 countries. The most published newspapers were Ophthalmology (n = 51). The countries were the USA (n = 66). Out of 100 articles, 12 institutions and 10 authors contributed over 3 articles. The emphasis of these studies was placed on clinical studies. The most prevalent design type was the randomized controlled trial (n = 42). The etiology on macular edema can be divided into diabetic (n = 68), retinal vein occlusion (n = 21), and other (n = 11), of which the most common research topic is the non-surgical treatment of macular edema (n = 65).Conclusion: This study analyzed the research trends and progress of macular edema in the past 70 years, emphasizing the treatment of diabetic macular edema and the contribution of USA in the study of macular edema.
    Keywords:  Bibliometric studies; Macular edema; Ophthalmology; Retina; therapy
  8. Asian J Psychiatr. 2021 Jul 10. pii: S1876-2018(21)00209-4. [Epub ahead of print]63 102753
      The study provides a comprehensive analysis of trends of the global scientific research on the effects of the COVID-19 Pandemic on Mental health from the first published literature up to June 27, 2021. Relevant documents were searched using mesh terms based on the query of two searches, "COVID-19 & Mental Health" scenarios joined by the Boolean operator "AND" to retrieve relevant literature using the Web of Science (WOS) database. Bibliometric indicators were analyzed using HistCite, Bibliometrix, an R package, and VOSviewer.Var1.6.6. A total of 5449 publications with an h-index of 97 were retrieved from the database. Overall, articles retrieved were written by 24123 authors, published in 1224 journals, 132 countries represented, and 10.01 average citations per document. Kings College London led the list of contributing institutions with 76 articles. The United States Department of Human Health Services, the National Institutes of Health, the USA, and the National Natural Science Foundation of China was the top funding agencies that enhanced research on mental health and supported more than 180 articles. USA contributed the most significant proportion 1157 (21.23 %) of COVID-19 Pandemic on Mental health publication closely followed by China in the number of publications 741(13.60 %). The study provides insight into the global research perspective for the scientific progress on the COVID-19 Pandemic public health emergency and the mental health issues, thus significantly impacting and supporting intervention towards improving people's mental health post-COVID-19 outbreak.
    Keywords:  Bibliometric analysis; COVID-19; Mental health; Web of science
  9. Int J Environ Res Public Health. 2021 Jul 09. pii: 7358. [Epub ahead of print]18(14):
      The pollution of heavy metals in soil is a problem of great concern to international scholars today. This research investigates the current research activities in the field of soil heavy metal pollution remediation and discusses the current areas of research focus and development trends. We conducted a bibliometric analysis of the literature on soil heavy metal pollution remediation from 1999 to 2020. CiteSpace and Vosviewer were used to conduct document co-citation and cluster analyses on the collected data. The research was mainly carried out based on the following factors: chronological distribution, country and institution distribution, source journal analysis, keyword co-occurrence analysis, and reference co-citation analysis. China (2173, 28.64%) and the United States (946, 12.47%) are the top two countries in terms of the number of articles published, and Environmental Science and Pollution Research (384, 5.06%) and Science of the Total Environment (345, 4.55%) published the most articles. The Chinese Academy of Science (485) is the organization that has contributed the most to the total number of publications. Furthermore, based on a keyword co-word analysis with Vosviewer and CitesSpace, it was concluded that the applications of phytoremediation and biochar in the remediation of heavy metals in soil are current research hotspots. Additionally, future research should focus on repair mechanisms, the development of new repair technology and joint repair systems.
    Keywords:  bibliometric analysis; heavy metal-contaminated soil; intellectual structure; remediation research; research trend
  10. Int J Risk Saf Med. 2021 Jul 14.
      BACKGROUND: Governmental regulations of drug registration and licensing are not always followed by healthcare providers.OBJECTIVE: To explore the global research growth and patterns on systemic use of off-label and unlicensed drugs to gain knowledge about the magnitude of the problem and the main research themes encountered in this field.
    METHODS: SciVerse Scopus was searched for papers on off-label and unlicensed drug use from 1990 until December 31, 2020, without any language limitations. A bibliometric methodology was adopted to present the following indicators: top-cited documents, the most productive countries, top active journals, international research collaboration, the most frequent author keywords, and research themes.
    RESULTS: The search query returned 1320 papers with an h-index of 66, published in 721 different journals. The Hospital Pharmacy journal ranked first (n = 43, 3.3%). In total, 5777 authors (median = 3) from 85 different countries contributed to the retrieved papers. The USA (n = 381, 28.9%) ranked first, followed distantly by Germany and Italy. The percentage of documents with international authors for active countries was from 8.8% for China to 42.3% for the Netherlands. The most frequent author keyword next to off-label was children/pediatrics. The keyword unlicensed was less frequently encountered than that for off-label. Major research themes in the retrieved papers focused on off-label drug use in hospitalized children/pediatrics, biological drugs such as rituximab and rFVIIa, psychiatric disorders, regulations, and questionnaire-based knowledge/attitude studies among community pharmacists and physicians.
    CONCLUSIONS: Research activity on off-label drug use has witnessed a general increase in the past two decades. The major research theme was off-label drug use in hospitalized children/pediatrics/neonates. The USA and certain European countries made a major contribution to this field.
    Keywords:  Off-label; bibliometric analysis; pharmacy practice; unlicensed
  11. Reumatol Clin (Engl Ed). 2021 Aug-Sep;17(7):pii: S2173-5743(20)30138-6. [Epub ahead of print]17(7): 404-407
      OBJECTIVE: To analyse the scientific production and collaboration networks on publications in systemic lupus erythematosus in Latin America.MATERIALS AND METHODS: Bibliometric study between 1982 and 2018 of journals indexed in Scopus. Data were analysed by annual production and a co-occurrence analysis of the collaboration between countries with VOSviewer was plotted.
    RESULTS: 3843 related documents on systemic lupus erythematosus were recorded between 1982 and 2018 in Scopus. An increasing trend was observed, with a significant increase in the last 20 years, the original articles being the highest percentage (75.4%). Eleven Latin American countries were identified in collaboration with 29 extra-regional countries, with Brazil, Mexico and Argentina having the highest production and scientific collaboration, mainly with the United States and Spain.
    CONCLUSION: In Latin America, there is a sustained increase in research on systemic lupus erythematosus. Brazil and Mexico generated more than half the publications and are the main collaboration network together with Argentina.
    Keywords:  América Latina; Bibliometrics; Bibliometría; Latin America; Lupus eritematoso sistémico; Systemic lupus erythematosus
  12. J Med Libr Assoc. 2021 Apr 01. 109(2): 219-239
      Objective: Understanding health informatics (HI) publication trends in Saudi Arabia may serve as a framework for future research efforts and contribute toward meeting national "e-Health" goals. The authors' intention was to understand the state of the HI field in Saudi Arabia by exploring publication trends and their alignment with national goals.Methods: A scoping review was performed to identify HI publications from Saudi Arabia in PubMed, Embase, and Web of Science. We analyzed publication trends based on topics, keywords, and how they align with the Ministry of Health's (MOH's) "digital health journey" framework.
    Results: The total number of publications included was 242. We found 1 (0.4%) publication in 1995-1999, 11 (4.5%) publications in 2000-2009, and 230 (95.0%) publications in 2010-2019. We categorized publications into 3 main HI fields and 4 subfields: 73.1% (n=177) of publications were in clinical informatics (85.1%, n=151 medical informatics; 5.6%, n=10 pharmacy informatics; 6.8%, n=12 nursing informatics; 2.3%, n=4 dental informatics); 22.3% (n=54) were in consumer health informatics; and 4.5% (n=11) were in public health informatics. The most common keyword was "medical informatics" (21.5%, n=52). MOH framework-based analysis showed that most publications were categorized as "digitally enabled care" and "digital health foundations."
    Conclusions: The years of 2000-2009 may be seen as an infancy stage of the HI field in Saudi Arabia. Exploring how the Saudi Arabian MOH's e-Health initiatives may influence research is valuable for advancing the field. Data exchange and interoperability, artificial intelligence, and intelligent health enterprises might be future research directions in Saudi Arabia.
    Keywords:  bibliometric analysis; biomedical informatics; clinical informatics; consumer health informatics; health informatics; public health informatics
  13. Int J Environ Res Public Health. 2021 Jul 07. pii: 7273. [Epub ahead of print]18(14):
      Scientometrics enables scholars to assess and visualize emerging research trends and hot-spots in the scientific literature from a quantitative standpoint. In the last decades, Africa has nearly doubled its absolute count of scholarly output, even though its share in global knowledge production has dramatically decreased. The still-ongoing COVID-19 pandemic has profoundly impacted the way scholarly research is conducted, published, and disseminated. However, the COVID-19-related research focus, the scientific productivity, and the research collaborative network of African researchers during the ongoing COVID-19 pandemic remain to be elucidated. This study aimed to clarify the COVID-19 research patterns among African researchers and estimate the strength of collaborations and partnerships between African researchers and scholars from the rest of the world during the COVID-19 pandemic, collecting data from electronic scholarly databases such as Web of Science (WoS), PubMed/MEDLINE and African Journals OnLine (AJOL), the largest and prominent platform of African-published scholarly journals. We found that COVID-19-related collaboration patterns varied among African regions. For instance, most of the scholarly partnerships occurred with formerly colonial countries (such as European or North-American countries). In other cases, scholarly ties of North African countries were above all with the Kingdom of Saudi Arabia. In terms of number of publications, South Africa and Egypt were among the most productive countries. Bibliometrics and, in particular, scientometrics can help scholars identify research areas of particular interest, as well as emerging topics, such as the COVID-19 pandemic. With a specific focus on the still-ongoing viral outbreak, they can assist decision- and policy-makers in allocating funding and economic-financial, logistic, organizational, and human resources, based on the specific gaps and needs of a given country or research area.
    Keywords:  Africa; COVID-19 pandemic; bibliometrics; scientometrics
  14. PLoS One. 2021 ;16(7): e0253847
      Advances in science and technology depend on the work of research teams and the publication of results through peer-reviewed articles representing a growing socio-economic resource. Current methods to mine the scientific literature regarding a field of interest focus on content, but the workforce credited by authorship remains largely unexplored. Notably, appropriate measures of scientific production are debated. Here, a new bibliometric approach named TeamTree analysis is introduced that visualizes the development and composition of the workforce driving a field. A new citation-independent measure that scales with the H index estimates impact based on publication record, genealogical ties and collaborative connections. This author-centered approach complements existing tools to mine the scientific literature and to evaluate research across disciplines.
  15. Rev Clin Esp (Barc). 2021 Jul 19. pii: S2254-8874(21)00124-7. [Epub ahead of print]
      OBJECTIVES: To compare the quantity and quality of publications during the residency training period in Cardiology, Intensive Care Medicine, Internal Medicine and Medical Oncology in Spain.METHODS: A retrospective cohort study of residents from 4 specialties lasting 5 years (2014-2019). The number and type of publications indexed in PubMed®, the names of the journals and their bibliometric indexes (impact factor and quartiles), and author's positions were evaluated.
    RESULTS: The 649 residents included in the study generated 801 publications (publication/resident ratio 1.23). Cardiology residents published significantly more (ratio 2.57) and Intensive Care Medicine residents less (ratio 0.42) than the remaining specialties (Internal Medicine, ratio 1.06; Medical Oncology, ratio 0.76; p < .001). Overall, only 44.5% of residents participated in a publication, with 27.6% participating in an original article; this latter percentage increased significantly among cardiologists (47.7%; p < .001). The predominant types of publications were original articles (47.9%) and clinical reports (36.8%). The proportion of publications in first quartile journals was higher for Cardiology residents (44.6% of total). The resident was the first or last author in only one-third of the publications. Scientific productivity was related to specialty, but not to gender or the size of the hospital in which the residency training occurred.
    CONCLUSIONS: Intensive Care Medicine, Internal Medicine and Medical Oncology residents publish insufficiently, while the scientific production from Cardiology residents could be considered acceptable.
    Keywords:  Cardiology; Cardiología; Educación médica; Intensive Care Medicine; Internal Medicine; Medical Oncology; Medical education; Medicina Intensiva; Medicina Interna; Oncología Médica; Residencia; Residency
  16. Int J Environ Res Public Health. 2021 Jul 14. pii: 7503. [Epub ahead of print]18(14):
      Healthy living habits (healthy eating, regular physical activity, abstinence from smoking, restrictions on alcohol consumption, and stress management) can help prevent a significant number of diseases. The purpose of this study is to use a bibliometric analysis to analyze the relationships between countries, institutions and authors through lifestyle studies from 2016 to 2020 to find out the latest research trends. This study utilized bibliometric data collected through Scopus including thesis titles, authors, agencies, countries/regions, publication years, and keywords. Data were analyzed using the VOS viewer (Vers. 1.6.13; Leiden University, Leiden, The Netherlands) and the findings were used to visualize similarity mapping techniques. Publication of lifestyle-related research papers has steadily increased between 2016 and 2020. The country/region most actively conducting such research was the United States, also home to the majority of institutions conducting work in the field. PloS ONE published the most lifestyle-related research under the field of Medicine. Identified keywords were related to risk measures, psychosocial factors, prevention, health promotion, and risk factors. Lifestyle research is a promising field of research worldwide and has great potential to improve human health, the environment, and quality of life. The findings are expected to promote future research and give direction to the advancement of the field of research by comprehensively analyzing and summarizing lifestyle research trends.
    Keywords:  bibliometric analysis; health; lifestyle
  17. Int J Environ Res Public Health. 2021 Jul 16. pii: 7567. [Epub ahead of print]18(14):
      Electric power wheelchairs (EPWs) enhance the mobility capability of the elderly and the disabled, while the human-machine interaction (HMI) determines how well the human intention will be precisely delivered and how human-machine system cooperation will be efficiently conducted. A bibliometric quantitative analysis of 1154 publications related to this research field, published between 1998 and 2020, was conducted. We identified the development status, contributors, hot topics, and potential future research directions of this field. We believe that the combination of intelligence and humanization of an EPW HMI system based on human-machine collaboration is an emerging trend in EPW HMI methodology research. Particular attention should be paid to evaluating the applicability and benefits of the EPW HMI methodology for the users, as well as how much it contributes to society. This study offers researchers a comprehensive understanding of EPW HMI studies in the past 22 years and latest trends from the evolutionary footprints and forward-thinking insights regarding future research.
    Keywords:  EPW driving; HMI methodology; bibliometric analysis; emerging trends; research status
  18. J Med Libr Assoc. 2021 Apr 01. 109(2): 301-310
      Objective: To conduct a bibliometric analysis of Letters to the Editor published on the Zika virus from 1952-2018.Methods: A PubMed search was conducted using the terms (Zika OR ZIKV). Results were limited to 1952-2018 and Publication Type = Letter. Results were exported to EndNote, and the full text of each Letter examined. Each Letter was assigned to one of five categories: Reader Response, Author Reply, Observation, Case Report, or Research. Additional study parameters included number of authors, number of references, use of graphics, and funding. Citation reports were generated for each category and the entire dataset, producing lists sorted by Times Cited.
    Results: Of 499 Letters, only 15 (3.0%) were published before 2016. In 2016, at the height of the Zika virus epidemic in the Americas, 244 (48.9%) Letters were published, dropping to 145 (29.1%) in 2017 and 95 (19.0%) in 2018. Letters included 149 (29.9%) Reader Responses, 56 (11.2%) Author Replies, 112 (22.4%) Observations, 70 (14.0%) Case Reports, and 112 (22.4%) Research. The Letters were written by 1-35 authors; 369 (74.0%) Letters had 1-5 authors, and 130 (26.0%) had 6 or more. The Letters cited 0-63 references, with an average of 7.0 per Letter. Graphics appeared in 192 (38.5%) Letters, and 77 (15.4%) Letters reported funding. An interesting anomaly was the 104 (20.8%) Letters authored or co-authored by 1 individual.
    Conclusion: Letters to the Editor remain an important component of scientific communication and may serve as a valuable source of clinical and research information.
    Keywords:  Letters to the Editor; bibliometric analysis; bibliometrics
  19. PLoS One. 2021 ;16(7): e0255106
      Cuba and the U.S. have the oldest Academies of Sciences outside Europe. Both countries have a long history of scientific collaboration that dates to the 1800s. Both scientific communities also share geographical proximity and common scientific research interests mainly in Biotechnology, Meteorology, and Public Health research. Despite these facts, scientists from both nations face serious barriers to cooperation raised by the U.S. embargo established in 1961 that prohibits exchanges with Cuba. The study aims to analyze the effects of U.S. policy on scientific collaboration with Cuban scientific institutions. The results of the bibliometric analysis of Cuba-U.S. joint publications in the Web of Science, and Scopus databases between 1980 to 2020 indicate sustained growth of scientific collaboration between scientists of both nations over the past forty years. The results also show that after the 1980 Smithsonian Institution and the Cuba's Academy of Sciences agreement significantly increased scientific collaboration between U.S. scientists with their Cuban peers. President Barack Obama's approach to normalizing the U.S. Cuba relations in 2015 enhanced Cuban scientific production with U.S. scientists by exceeding the number of collaborative papers published during any preceding U.S. Presidential administration. By 2020, Cuba had expanded its scientific links to 80% of the countries in the world. Cuban and U.S. scientists converted from adversaries into partners, showing that science is an effective diplomatic channel. A particularly important question for the future is how robust is the collaboration system in the face of greater political restrictions?
  20. Acta Otorrinolaringol Esp (Engl Ed). 2021 Jul-Aug;72(4):pii: S2173-5735(21)00053-3. [Epub ahead of print]72(4): 230-237
      INTRODUCTION: In recent decades, progress has been made in tackling inequality between men and women, encouraging publications that analyse and provide recommendations to eliminate this issue. The aim of this study is to analyse the gender differences in the authorship of the studies published in the journal Acta Otorrinolaringológica Española.METHODS: A cross-sectional study of issues published between January 2010 and December 2019, including number of authors (total, men and women), type and year of publication, institution and country (first, second and last author), and area of specialisation. Women's participation was calculated based on female/male ratio, trend and associated factors.
    RESULTS: A total of 615 articles with 2,841 authors (1,017 women and 1,824 men) from Spain were collected. A total of 244 (39.7%) women and 371 (60.3%) men were listed as first authors (p = .879), 245 (39.84%) women and 370 (60.16%) men as second authors (p = .919), and 137 (22.28%) women and 478 (77.72%) men as final signatories (p < .000). All the ratios calculated were below the recommended figures.
    DISCUSSION: The participation of female authors in the scientific production of Acta Otorrinolaringológica Española is acceptable, following a similar distribution to the current number of female ENT specialists. Further efforts are needed to increase the number of final signatories and to change the decreasing trend recorded over the last decade.
    Keywords:  Authorship; Autoría; Desigualdad de género; ENT research; Gender inequality; Investigación en Otorrinolaringología; Medical publication; Publicación médica
  21. Environ Sci Pollut Res Int. 2021 Jul 22.
      The correct destination of waste is an essential factor for sustainable development. Electronic waste, which is very toxic, is the type of waste with the highest rate of increase in its generation. For these reasons, the amount of research on this topic increases year by year, as shown by the literature review carried out by this study. This review aims to identify the main characteristics and proposals of the main study on electronic waste and verify how Brazil is inserted globally in the research on e-waste. Another objective is to suggest a path for researchers who want to start research on e-waste by identifying the keywords most used in the analyzed articles. The results evidenced that the most published countries on the subject are China, the USA, and India. Brazil is in a position of little prominence concerning its research production on the subject. Most of the central studies we analyzed use case study and literature review as the research method. Among the 44 articles analyzed, only one proposed a destination for e-waste. It highlights the need for more research focusing on the environmentally correct destination of e-waste. A good way to start a search on electronic waste is to use the keywords identified in this study, especially those used most frequently in the analyzed articles.
    Keywords:  E-waste; Electronic waste; Recycling; Sustainability; Sustainable development; Waste
  22. J Neurosurg. 2021 Jul 23. pii: 2021.1.JNS203824. [Epub ahead of print] 1-11
      OBJECTIVE: International research fellows have been historically involved in academic neurosurgery in the United States (US). To date, the contribution of international research fellows has been underreported. Herein, the authors aimed to quantify the academic output of international research fellows in the Department of Neurosurgery at The Johns Hopkins University School of Medicine.METHODS: Research fellows with Doctor of Medicine (MD), Doctor of Philosophy (PhD), or MD/PhD degrees from a non-US institution who worked in the Hopkins Department of Neurosurgery for at least 6 months over the past decade (2010-2020) were included in this study. Publications produced during fellowship, number of citations, and journal impact factors (IFs) were analyzed using ANOVA. A survey was sent to collect information on personal background, demographics, and academic activities.
    RESULTS: Sixty-four international research fellows were included, with 42 (65.6%) having MD degrees, 17 (26.6%) having PhD degrees, and 5 (7.8%) having MD/PhD degrees. During an average 27.9 months of fellowship, 460 publications were produced in 136 unique journals, with 8628 citations and a cumulative journal IF of 1665.73. There was no significant difference in total number of publications, first-author publications, and total citations per person among the different degree holders. Persons holding MD/PhDs had a higher number of citations per publication per person (p = 0.027), whereas those with MDs had higher total IFs per person (p = 0.048). Among the 43 (67.2%) survey responders, 34 (79.1%) had nonimmigrant visas at the start of the fellowship, 16 (37.2%) were self-paid or funded by their country of origin, and 35 (81.4%) had mentored at least one US medical student, nonmedical graduate student, or undergraduate student.
    CONCLUSIONS: International research fellows at the authors' institution have contributed significantly to academic neurosurgery. Although they have faced major challenges like maintaining nonimmigrant visas, negotiating cultural/language differences, and managing self-sustainability, their scientific productivity has been substantial. Additionally, the majority of fellows have provided reciprocal mentorship to US students.
    Keywords:  global neurosurgery; international research fellow; mentorship; postgraduate research training
  23. World Neurosurg. 2021 Jul 16. pii: S1878-8750(21)01034-2. [Epub ahead of print]
      Intraoperative neuromonitoring techniques are usually implemented during spine surgery (IONMS) to avoid nefarious abuse of the nervous system that can cause post-operative problems. A lack of bibliometric analysis on the topic of IONMS has been identified. Therefore, this study aims are providing information of the main contributors to this field, their publication dynamics, as well as the current conceptual and cooperative networks. Results have shown that a steady publication increase has been occurring since 1991, with high levels of citations in the first decade, but irregular publication rates have been recorded more recently. Research production by country seems to be in line with what is observed in other surgical fields, but IONMS research funding seems to be lower, even with a clear interest of private funding agencies. The conceptual networks have put into evidence the importance of motor evoked potential, electromyography and the effect of anaesthesia, particularly in scoliosis surgery.
    Keywords:  IONM; MEP; SSEP; bibliometry; intraoperative neuromonitoring; spine surgery
  24. Int J Occup Saf Ergon. 2021 Jul 20. 1-42
      This paper analyzes research outputs in Ergonomics and Human Factors Engineering (EHFE), revealing its intellectual structure via bibliometric techniques, co-word, network analysis, and science visualization tools. Population comprises of 23,472 records published during 2000-2018, in 19 core journals of Human Factors and Ergonomics subject category in Scopus. The findings showed that in EHFE fields "the United States", "University of Central Florida" and "Stanton NA" were the most productive country, university and author, respectively. It was also found that "Ergonomics" was the most frequent keyword and "Ergonomics and Human Factor" were the most frequent co-occurred keywords in EHFE documents. Hierarchical cluster analysis led to the creation of eight topical clusters, including among others "Biomechanics ergonomics", "Work-related MSDs & work system design", and "Performance". The results indicated that "Biomechanics ergonomics" was a well-matured cluster while "Human machine interaction", "Ergonomics design", "Macro-ergonomics", and "Cognitive ergonomics" were found to be emerging or declining clusters.
    Keywords:  Bibliometrics; Co-word analysis; Ergonomics; Human Factors Engineering; knowledge structure
  25. Ophthalmic Plast Reconstr Surg. 2021 Jul 21.
      PURPOSE: Despite increasing numbers of women oculoplastic surgeons, they remain underrepresented within the subspecialty. The purpose of this study was to analyze trends in gender authorship within the field of ophthalmic plastic and reconstructive surgery.METHODS: This retrospective observational study sampled articles published in Ophthalmic Plastic and Reconstructive Surgery (OPRS) and Orbit during the years 1985, 1995, 2005, 2015, and 2020. Data reviewed included article type, total number of authors, and the gender of each article's first and senior author.
    RESULTS: Nine hundred ninety-nine articles were analyzed, including 701 in OPRS and 298 in Orbit. Of 3,716 total authors, 1,151 (31%) were women, including 297 (29.7%) first authors, and 191 (21.5%) senior authors. Women authorship in OPRS in 1985 (first, 3.9%; senior, 3.3%; all, 3.2%) significantly increased by 2020 (first, 44.6%; senior, 27.9%; all, 42%). Women authorship in Orbit in 1985 (first, 0%; senior, 4.5%; all, 7.4%) also significantly increased by 2020 (first, 43.3%; senior, 34%; all, 42.9%). In a subanalysis of OPRS original investigations alone, women first authorship increased from 3.1% in 1985 to 35.8% in 2020 (p < 0.001) and women senior authorship increased from 4.3% in 1985 to 25% in 2020 (p = 0.001). In a subanalysis of Orbit original investigations alone, women first authorship increased from 0% in 1985 to 65.4% in 2020 (p < 0.001) and women senior authorship increased from 5.3% in 1985 to 42.3% in 2020 (p < 0.001).
    CONCLUSIONS: Despite a significant increase in women authorship over the past several decades, women remain underrepresented within the oculoplastic literature, particularly in regard to senior authorship. When considering original investigations alone, there has been a significant increase in women first and senior authorship in both OPRS and Orbit.
  26. Environ Sci Pollut Res Int. 2021 Jul 22.
      A scientometric analysis based on the Scopus database was conducted to provide insight into research activities on the occurrence of potentially toxic elements (PTEs) (As, Cd, Co, Cr, Cu, Hg, Ni, Pb, Sb, and Zn) in groundwater during 1970-2019. The selection of these PTEs was based on their significance concerning their reference frequency in environmental science and pollution research (ESPR) studies and their toxicity to living organisms. The analysis utilizes data about the quantity, type, journal, geographical, institutional, and funding patterns of publications. The results indicate that the publications' annual output has increased over the years, and especially after 2000, it presents a remarkable growth rate. The most studied PTEs were As and Pb; nevertheless, the research on the rest of PTEs cannot be neglected as it shows continuously increasing trends over time. The evolution of instrumentation and the dissemination of contamination case studies that affect a large part of the world population contributed significantly to the scientific community and relative stakeholders' interest. According to the analysis, the USA and China are the two principal countries with the most considerable contribution, producing the most research regarding the number of publications, research institutions, and funding sponsors. China owns the most influential research institution (i.e., Chinese Academy of Sciences) and largest funding sponsor (i.e., National Natural Science Foundation of China; ≈5% of global funding) on a worldwide scale due to its investment in research and development (R&D) and is expected to become the greatest force in the future.
    Keywords:  Environmental science and pollution research; Groundwater contamination; Potentially toxic elements; Research trends; Scientometric analysis; Scopus database
  27. Ann Surg Oncol. 2021 Jul 21.
      BACKGROUND: The scientific rigor of the abstracts presented at the American Society of Breast Surgeons (ASBrS) annual meeting has not been recently evaluated. In this study, we sought to determine the rate at which abstracts presented at the 2017 and 2018 ASBrS meetings were published in peer-reviewed journals, and compared the rates with breast abstracts presented at the 2018 Society of Surgical Oncology (SSO) meeting.METHODS: Abstracts from the 2017 and 2018 ASBrS and 2018 SSO conferences were searched in PubMed for published manuscripts using the abstract title and/or first or last author.
    RESULTS: In 2017, 21.6% of the 268 abstracts presented at the ASBrS conference resulted in full publication, compared with 36.6% of the 273 abstracts presented at the 2018 ASBrS conference, resulting in a significant difference in the publication rate (p < 0.001). Of the 158 abstracts published from the 2017 and 2018 meetings, 75 (47.8%) were published in Annals of Surgical Oncology (ASO). There was no correlation between impact factor and time to publication. Oral presentations and quick shots were more likely to be published than poster presentations, and oral presentations were more likely to be published in higher-impact journals. The 2018 SSO meetings resulted in 54 of 111 (48.6%) breast abstracts leading to full publication.
    CONCLUSION: Approximately 29.2% of the abstracts presented at the ASBrS 2017 and 2018 conferences resulted in a published manuscript. A higher publication rate in higher impact journals for oral presentations indicates that the abstract review process properly stratifies the research.
  28. BMJ Open. 2021 Jul 21. 11(7): e050270
      OBJECTIVES: To describe and compare the characteristics of scholars who reviewed for predatory or legitimate journals in terms of their sociodemographic characteristics and reviewing and publishing behaviour.DESIGN: Linkage of random samples of predatory journals and legitimate journals of the Cabells Scholarly Analytics' journal lists with the Publons database, employing the Jaro-Winkler string metric. Descriptive analysis of sociodemographic characteristics and reviewing and publishing behaviour of scholars for whom reviews were found in the Publons database.
    SETTING: Peer review of journal articles.
    PARTICIPANTS: Reviewers who submitted peer review reports to Publons.
    MEASUREMENTS: Numbers of reviews for predatory journals and legitimate journals per reviewer. Academic age of reviewers, the total number of reviews, number of publications and number of reviews and publications per year.
    RESULTS: Analyses included 183 743 unique reviews submitted to Publons by 19 598 reviewers. Six thousand and seventy-seven reviews were for 1160 predatory journals (3.31% of all reviews) and 177 666 reviews for 6403 legitimate journals (96.69%). Most scholars never submitted reviews for predatory journals (90.0% of all scholars); few scholars (7.6%) reviewed occasionally or rarely (1.9%) for predatory journals. Very few scholars submitted reviews predominantly or exclusively for predatory journals (0.26% and 0.35%, respectively). The latter groups of scholars were of younger academic age and had fewer publications and reviews than the first groups. Regions with the highest shares of predatory reviews were sub-Saharan Africa (21.8% reviews for predatory journals), Middle East and North Africa (13.9%) and South Asia (7.0%), followed by North America (2.1%), Latin America and the Caribbean (2.1%), Europe and Central Asia (1.9%) and East Asia and the Pacific (1.5%).
    CONCLUSION: To tackle predatory journals, universities, funders and publishers need to consider the entire research workflow and educate reviewers on concepts of quality and legitimacy in scholarly publishing.
    Keywords:  medical education & training; medical ethics; medical journalism
  29. Sensors (Basel). 2021 Jul 09. pii: 4710. [Epub ahead of print]21(14):
      Condition monitoring of rail transport systems has become a phenomenon of global interest over the past half a century. The approaches to condition monitoring of various rail transport systems-especially in the context of rail vehicle subsystem and track subsystem monitoring-have been evolving, and have become equally significant and challenging. The evolution of the approaches applied to rail systems' condition monitoring has followed manual maintenance, through methods connected to the application of sensors, up to the currently discussed methods and techniques focused on the mutual use of automation, data processing, and exchange. The aim of this paper is to provide an essential overview of the academic research on the condition monitoring of rail transport systems. This paper reviews existing literature in order to present an up-to-date, content-based analysis based on a coupled methodology consisting of bibliometric performance analysis and systematic literature review. This combination of literature review approaches allows the authors to focus on the identification of the most influential contributors to the advances in research in the analyzed area of interest, and the most influential and prominent researchers, journals, and papers. These findings have led the authors to specify research trends related to the analyzed area, and additionally identify future research agendas in the investigation from engineering perspectives.
    Keywords:  bibliometric analysis; condition monitoring; mapping science; monitoring system; rail transport; rail vehicle; sensor; track
  30. Semin Ophthalmol. 2021 Jul 20. 1-8
      PurposeTo analyze research productivity, as assessed by the National Institutes of Health-supported relative citation ratio (RCR), for a cohort of Southern academic ophthalmologists.DesignA descriptive and cross-sectional design was used. Data on gender, academic rank (assigned as an assistant professor, associate professor, professor, or "other"), degrees, and career duration were collected using online resources. Research yield was quantified using mean and weighted RCR data queried from the iCite database. Significant between-group differences were calculated using the Mann-Whitney U-test and the Kruskal-Wallis test.SettingsPracticing academic ophthalmologists at Accreditation Council for Graduate Medical Education-accredited ophthalmology programs in the Southern United States (n = 1018).ResultsFor all Southern academic ophthalmologists, median mean RCR was 0.90 (IQR 0.18-1.71) and median weighted RCR was 5.12 (IQR 0.34-33.18). Advanced academic rank and PhD acquisition were significantly associated with increased mean and weighted RCR. After exclusion of faculty within the "other" category, median mean RCR was 1.12 (IQR 0.54-1.80) and median weighted RCR was 11.65 (IQR 2.03-45.58). Furthermore, effects of career duration and gender emerged. Ophthalmologists with longer careers had significantly higher mean and weighted RCR than their younger counterparts. Males had significantly higher mean and weighted RCR than females.ConclusionsAcademic rank and attainment of a PhD degree were correlated with increased research productivity. When analyses focused exclusively on faculty not in the "other" subgroup, male gender, and lengthier career were associated with increased mean and weighted RCR, the former of which potentially highlights differences in professional advancement between genders.
    Keywords:  Bibliometrics; H-index; National Institutes of Health; Relative Citation Ratio
  31. Stem Cell Res Ther. 2021 Jul 18. 12(1): 411
      Our objective in this review was to determine (1) impactful research articles about CRISPR-edited stem cells, (2) factors that affected CRISPR method performance in stem cell, and (3) research design related to CRISPR-edited stem cells. Screening research papers of related topic was carried out by using the Science Citation Index Expanded (SCIE) database of the Clarivate Analytics Web of Science Core Collection updated. We screened impactful CRISPR/Cas9-edited stem cells based on total citation until 2020. The result showed the title "RNA-guided human genome engineering via Cas9" was the highest citation in stem cell research using the CRISPR method with total citation 4789 from Web of Science Core Collection until 2020. It became the most influenced paper because this was the first research using CRISPR method for modifying human cells. On the other hand, cell type, CRISPR/Cas9 delivery, and gene target affected CRISPR/Cas9 performance in stem cells. The more complex the cell structure, the more difficult for CRISPR/Cas9 to mutate the host cells. This problem could be solved by modifying the CRISPR/Cas9 delivery by liposome and SaCas9 modification. Another way was using ribonucleoprotein (RNP) as a delivery method. Then, double gene target was more difficult to execute than single gene target. Although it is difficult, CRISPR/Cas9 had the capability to target any genome region from promoter until intron. Research design used a combination of dry lab and wet lab. The dry lab is usually used for sequence analysis and gRNA design. The wet lab which consisted of in vitro and in vivo was used for gene characterization. In particular, colony selection, DNA analysis, and sequencing were important parts for in vitro research design, while DNA analysis and sequencing were crucial parts for in vivo research design. We hoped these findings could give researchers, investor, and students a guideline to conduct CRISPR-edited stem cells in the future.
    Keywords:  CRISPR/Cas9; Citation analysis; Stem cell; Web of Science Core Collection
  32. J Plast Reconstr Aesthet Surg. 2021 Jun 20. pii: S1748-6815(21)00342-9. [Epub ahead of print]
      PURPOSE: Breast reconstruction is an important component of comprehensive breast cancer care. Although reconstructive plans require multidisciplinary clinical-decision making, research in cross-discipline collaborations is often limited. This study aims to evaluate multidisciplinary involvement in breast reconstruction outcomes research.METHODS: A systematic review of breast reconstruction literature published from 2000 to 2019 using Ovid MEDLINE, Ovid EMBASE, and PubMed databases was conducted. English language articles published in North America or Europe with n ≥ 12 nonpediatric patients were included. Articles concerning procedures not performed in the context of breast cancer care or articles that did not evaluate at least one outcome, diagnostic test, or risk factor were excluded. Authors' affiliations were used to define multidisciplinary involvement. Quality of research was evaluated using the level of evidence,  journal impact factor (IF), and altmetrics.
    RESULTS: Of the 1679 articles screened, 784 met the stated eligibility criteria. Only half (50.6%) of these articles involved an author outside the discipline of plastic surgery. Compared to nonmultidisciplinary studies, multidisciplinary studies were more likely to be designated with a higher level of evidence (I or II) (p<0.001), published in journals with higher IF (p<0.05), have higher usage (p = 0.03), and mentions (p = 0.02). There was no difference in citations, captures, and social media posts (p>0.05).
    CONCLUSION: Breast reconstruction outcomes research often fails to offer author collaborations from nonplastic surgery disciplines. Multidisciplinary involvement in breast cancer care research is strongly recommended to improve the quality and impact of clinical studies in breast reconstruction.
    Keywords:  Breast cancer; Breast reconstruction; Multidisciplinary; Systematic review
  33. Scientometrics. 2021 Jul 10. 1-23
      The publish or perish culture of scholarly communication results in quality and relevance to be are subordinate to quantity. Scientific events such as conferences play an important role in scholarly communication and knowledge exchange. Researchers in many fields, such as computer science, often need to search for events to publish their research results, establish connections for collaborations with other researchers and stay up to date with recent works. Researchers need to have a meta-research understanding of the quality of scientific events to publish in high-quality venues. However, there are many diverse and complex criteria to be explored for the evaluation of events. Thus, finding events with quality-related criteria becomes a time-consuming task for researchers and often results in an experience-based subjective evaluation. is a crowd-sourcing platform that provides features to explore previous and upcoming events of computer science, based on a knowledge graph. In this paper, we devise an ontology representing scientific events metadata. Furthermore, we introduce an analytical study of the evolution of Computer Science events leveraging the knowledge graph. We identify common characteristics of these events, formalize them, and combine them as a group of metrics. These metrics can be used by potential authors to identify high-quality events. On top of the improved ontology, we analyzed the metadata of renowned conferences in various computer science communities, such as VLDB, ISWC, ESWC, WIMS, and SEMANTiCS, in order to inspect their potential as event metrics.
    Keywords:  Metadata Analysis; Metric Suite; Ontology; Scholarly Communication; Scientific Events
  34. Front Res Metr Anal. 2021 ;6 696470
      Carrying out bibliometric reports is one of the common tasks performed by librarians and practitioners within the framework of their professional duties. The emergence of novel data sources, the need to measure new research activities and the growing demand for fairer and more equitable evaluation within the framework of the Responsible Metrics movement has led to calls for a review of the traditional approaches to these types of reports. The main goal of this study is to outline a series of recommendations for bibliometricians, consultants and research support librarians when drafting bibliometric reports in their institutions. These best practices can significantly enhance the quality and utility of bibliometric reports, posing their practitioners as key players in the science management process.
    Keywords:  Responsible metrics; Responsible research and innovation; best practices; bibliometrics; reports
  35. J Med Libr Assoc. 2021 Apr 01. 109(2): 275-285
      Objective: We aimed to determine overlaps and optimal combination of multiple database retrieval and citation tracking for evidence synthesis, based on a previously conducted scoping review on facilitators and barriers to implementing nurse-led interventions in dementia care.Methods: In our 2019 scoping review, we performed a comprehensive literature search in eight databases (CENTRAL, CINAHL, Embase, Emcare, MEDLINE, Ovid Nursing Database, PsycINFO, and Web of Science Core Collection) and used citation tracking. We retrospectively analyzed the coverage and overlap of 10,527 retrieved studies published between 2015 and 2019. To analyze database overlap, we used cross tables and multiple correspondence analysis (MCA).
    Results: Of the retrieved studies, 6,944 were duplicates and 3,583 were unique references. Using our search strategies, considerable overlaps can be found in some databases, such as between MEDLINE and Web of Science Core Collection or between CINAHL, Emcare, and PsycINFO. Searching MEDLINE, CINAHL, and Web of Science Core Collection and using citation tracking were necessary to retrieve all included studies of our scoping review.
    Conclusions: Our results can contribute to enhancing future search practice related to database selection in dementia care research. However, due to limited generalizability, researchers and librarians should carefully choose databases based on the research question. More research on optimal database retrieval in dementia care research is required for the development of methodological standards.
    Keywords:  database; dementia; evidence-based nursing; implementation science; literature searching
  36. Scientometrics. 2021 Jul 10. 1-21
      The spread of COVID-19 has created a fundamental need for coordinated mechanisms responding to outbreaks in different sectors. One of the main sectors relates to information supply and demand in the middle of this pandemic in the digital environment. It could be called an infodemiology. It is known as a promising approach to solving the challenge in the present age. At this level, the purpose of this article is to investigate the COVID-19 related search process by field research. Data were retrieved from Google Trends in Middle Eastern countries alongside scientific research output of Middle Eastern scientists towards COVID-19 in Web of Science, Scopus, and PubMed. Daily COVID-19 cases and deaths were retrieved from the World Health Organization. We searched for descriptive statistical analyses to detect coronavirus-seeking behavior versus coronavirus releases in the Middle East in 2020. Findings show that people in the Middle East use various keyword solutions to search for COVID-19 in Google. There is a significant correlation between coronavirus confirmed cases and scientific productivity (January 2020-December 2020). Also, there is a positive association between the number of deaths and the number of scientific publications (except Jordan). It was a positive and significant association between online coronavirus-seeking behavior on Google (RSVs) and the confirmed cases (except Syria and Yemen). Furthermore, it was a positive relationship between RSVs and scientific productivity in the Middle East (except Bahrain and Qatar). From an infodemiological viewpoint, there is a significant correlation between coronavirus information demand and its information provision.
    Keywords:  Coronavirus; Google Trends; Infodemiology; Middle East; Scientific productivity
  37. Nature. 2021 Jul 21.
    Keywords:  Careers; Policy; Publishing
  38. Am J Pharm Educ. 2021 Mar;85(3): 7983
      Objective. To describe criteria for evaluating faculty scholarship within the promotion and tenure guidance documents of US schools and colleges of pharmacy.Methods. Promotion and tenure documents were obtained from the websites of US pharmacy schools or requested via electronic mail, and institutional characteristics were collected from publicly available online data. A qualitative content analysis was conducted to systematically catalogue document characteristics and criteria for promotion and tenure.Results. Promotion and tenure guidance documents from 121 (85%) of 142 pharmacy schools were analyzed. Institutions were 55% public and equally distributed across Carnegie institutional classifications as well as geographic and extramural funding stratifications. Publications (94%) and grants and contracts (87%) were the most frequently included criteria for faculty advancement. More than 50% of schools recognized the criteria within promotion and tenure guidance documents but did not explicitly require faculty to achieve them before receiving promotion and/or tenure. For institutions that required publications for advancement, the most frequently required criterion was publication in peer-reviewed journals (47%). Few schools (22%) documented a specific number of required publications.Conclusion. This analysis provides a comprehensive review of scholarship criteria in academic pharmacy promotion and tenure guidance documents. There was wide variability among scholarship criteria, and documents often lacked specific language defining scholarship requirements. As a result, faculty may find the documents less helpful for self-assessment and preparation toward promotion and/or tenure. These benchmark data can assist pharmacy faculty and administrators in developing and revising promotion and tenure guidance documents to include clear criteria and better align with peer institutions.
    Keywords:  academic promotion; faculty; pharmacy; scholarship; tenure
  39. Foot Ankle Surg. 2021 Jul 10. pii: S1268-7731(21)00145-4. [Epub ahead of print]
  40. Scientometrics. 2021 Jul 10. 1-21
      In addition to academic impact, researchers are increasingly concerned with understanding and demonstrating the practical impact of research outside academia. Several frameworks capturing key impact types have been developed based on project experiences, expert opinions, and surveys. This empirical study seeks to contribute to this development by identifying impact types documented in 6,882 case studies submitted to impact evaluation groups in Australia (Engagement and Impact Assessment) and the United Kingdom (Research Excellence Framework). The results of text mining indicate three emerging impact types that extend existing frameworks in terms of the recognition of new opportunities, the length of use, and experience improvement, thereby allowing a variety of researchers, not just those who address popular, short-term, and instrumental issues, to understand and demonstrate their practice impact.
    Keywords:  Impact types; Impact case studies; Practice impact; Text mining
  41. Rev Port Cardiol (Engl Ed). 2021 Jul;pii: S2174-2049(21)00126-4. [Epub ahead of print]40(7): 501-504
      gA ender gap is apparent in several professional areas, including in Medicine and particularly in the Cardiovascular field. We present a brief review of the subject and we analyse data from the Portuguese Journal of Cardiology regarding women authorship.
    Keywords:  Cardiologia; Cardiology; Leadership; Liderança; Mulheres; Women
  42. Cerebrovasc Dis. 2021 Jul 21. 1-12
      INTRODUCTION: Ever since the beginning of cerebral bypass surgery, the role of the bypass has been debated and indications have changed over the last 5 decades. This systematic literature research analysed all clinical studies on cerebral bypass that have been published from January 1959 to January 2020 for their year of publication, country of origin, citation index, role of and indication for bypass, bypass technique, revascularized territory, flow capacity, and title (for word cloud analysis per decade).METHODS: A systematic literature research was conducted using PubMed, Web of Science, EMBASE, and SCOPUS databases. All studies that have been published until January 1, 2020, were included.
    RESULTS: Of 6,013 identified studies, 2,585 were included in the analysis. Of these, n = 1,734 (67%) studies addressed flow-augmentation bypass and n = 701 (27%) addressed flow-preservation bypass. The most common indication reported for flow augmentation is moyamoya (n = 877, 51%), followed by atherosclerotic steno-occlusive disease (n = 753, 43%). For flow preservation, the most common indication is studies reporting on cerebral aneurysm surgery (n = 659, 94%). The increasing popularity of reporting on these bypass operations almost came to an end with the FDA approval of flow diverters for aneurysm treatment in 2011. Japan is the country with the most bypass studies (cumulatively published 933 articles), followed by the USA (630 articles) and China (232 articles).
    DISCUSSION/CONCLUSION: Clinical studies on cerebral bypass surgery have become increasingly popular in the past decades. Since the introduction of moyamoya as a distinct pathologic entity, Asian countries in particular have a very active community regarding this disease, with an increasing number of articles published every year. Studies on bypass for chronic steno-occlusive disease peaked in the 1980s but have remained the main focus of bypass research, particularly in many European departments. The number of reports published on these bypass operations significantly decreased after the FDA approval of flow diverters for aneurysm treatment in 2011.
    Keywords:  Cerebral bypass; Cerebral revascularization; Extra- to intracranial bypass; Intra- to intracranial bypass; Literature
  43. Adv Radiat Oncol. 2021 Sep-Oct;6(5):6(5): 100735
      Purpose: We aimed to evaluate the growth of women within the general radiation oncology (RO) workforce in comparison to the growth among other medical specialties. We also sought to create a predictive model for gender diversity to guide future recruitment efforts.Methods and Materials: We identified 16 medical specialties, including RO, for analyses. We used data from the Association of American Colleges and assessed female representation at 4 time points (2006, 2011, 2016, and 2020). Additionally, we determined characteristics of medical specialties that were predictive of increased gender diversity. We performed univariate statistical analysis with linear regression to evaluate factors predictive of greater gender diversity among the medical specialties in our cohort.
    Results: The proportion of women within the represented specialties increased over time. Obstetrics/gynecology (14,750 [2006], 23,921 [2020]; 18.7% absolute growth) and dermatology (3568 [2006], 6329 [2020]; 15.1% absolute growth) experienced the highest absolute growth in female representation between 2006 and 2020. When assessing changes between various time points in RO, the absolute change in female physicians increased by 1.5% between 2006 and 2011, by 2.2% between 2011 and 2016, and by only 0.4% between 2016 and 2020, which was the lowest growth pattern relative to the other 15 specialties. Factors predictive of gender diversity among specialties were lower average step 1 scores (P = .0056), fewer years of training (P = .0078), fewer work hours (P = .046), the availability of a standard third year clerkship for a given specialty (P = .0061), and a high baseline number of female physicians within a specialty (P = .0078). Research activities (P = .099) and interest among matriculating medical students (P = .28) were not statistically significant.
    Conclusions: The percentage of women in RO lags behind other medical specialties and has been notably low in the last few years. Interventions that incorporate novel initiatives proposed within this study may accelerate current recruitment milestones.
  44. Braz J Med Biol Res. 2021 ;pii: S0100-879X2021001000601. [Epub ahead of print]54(10): e11026
      Gender equity is far from being achieved in most academic institutions worldwide. Women representation in scientific leadership faces multiple obstacles. Implicit bias and stereotype threat are considered important driving forces concerning gender disparities. Negative cultural stereotypes of weak scientific performance, unrelated to true capacity, are implicitly associated with women and other social groups, influencing, without awareness, attitudes and judgments towards them. Meetings of scientific societies are the forum in which members from all stages of scientific careers are brought together. Visibility in the scientific community stems partly from presenting research as a speaker. Here, we investigated gender disparities in the Brazilian Society of Neuroscience and Behavior (SBNeC). Across the 15 mandates (1978-2020), women occupied 30% of the directory board posts, and only twice was a woman president. We evaluated six meetings held between 2010 and 2019. During this period, the membership of women outnumbered that of men in all categories. A total of 57.50% of faculty members, representing the potential pool of speakers and chairs, were female. Compared to this expected value, female speakers across the six meetings were scarce in full conferences (χ2(5)=173.54, P<0.001) and low in symposia (χ2(5)=36.92, P<0.001). Additionally, women chaired fewer symposia (χ2(5)=47.83, P<0.001). Furthermore, men-chaired symposia had significantly fewer women speakers than women-chaired symposia (χ2(1)=56.44, P<0.001). The gender disparities observed here are similar to those in other scientific societies worldwide, urging them to lead actions to pursue gender balance and diversity. Diversity leads not only to fairness but also to higher-quality science.
  45. Circ Heart Fail. 2021 Jul 20. CIRCHEARTFAILURE120008064
      BACKGROUND: Trial steering committees (TSCs) steer the conduct of randomized controlled trials (RCTs). We examined the gender composition of TSCs in impactful heart failure RCTs and explored whether trial leadership by a woman was independently associated with the inclusion of women in TSCs.METHODS: We systematically searched MEDLINE, EMBASE, and CINAHL for heart failure RCTs published in journals with impact factor ≥10 between January 2000 and May 2019. We used the Jonckheere-Terpstra test to assess temporal trends and multivariable logistic regression to explore trial characteristics associated with TSC inclusion of women.
    RESULTS: Of 403 RCTs that met inclusion criteria, 127 (31.5%) reported having a TSC but 20 of these (15.7%) did not identify members. Among 107 TSCs that listed members, 56 (52.3%) included women and 6 of these (10.7%) restricted women members to the RCT leaders. Of 1213 TSC members, 11.1% (95% CI, 9.4%-13.0%) were women, with no change in temporal trends (P=0.55). Women had greater odds of TSC inclusion in RCTs led by women (adjusted odds ratio, 2.48 [95% CI, 1.05-8.72], P=0.042); this association was nonsignificant when analysis excluded TSCs that restricted women to the RCT leaders (adjusted odds ratio 1.46 [95% CI, 0.43-4.91], P=0.36).
    CONCLUSIONS: Women were included in 52.3% of TSCs and represented 11.1% of TSC members in 107 heart failure RCTs, with no change in trends since 2000. RCTs led by women had higher adjusted odds of including women in TSCs, partly due to the self-inclusion of RCT leaders in TSCs.
    Keywords:  heart failure; leadership; randomized controlled trials; women
  46. World J Surg. 2021 Jul 17.
      BACKGROUND: Disparities in gender representation at medical meetings have been documented despite women representing half of medical school graduating classes. Lack of role models is touted as one of a myriad of factors that perpetuate gender imbalance, particularly in the field of surgery. We evaluated the trend in gender distribution of participants at the Royal Australasian College of Surgeons (RACS) Annual Scientific Congress (ASC) and whether there was a correlation between the gender distribution of the organising committee and speakers and chairpersons invited to attend.METHODS: RACS ASC programmes from 2013 to 2018 were retrospectively analysed, examining the gender distribution of speakers, chairpersons and conveners. Trend analysis of distribution was performed, and a generalized linear mixed model was used to investigate the effect of the gender of the conveners on gender of session chairpersons and speakers.
    RESULTS: Between 2013 and 2018, there were non-significant increases in female speakers invited to speak from 14.9 to 21.7% (p = 0.064) and female conveners appointed from 11 to 19% (p = 0.115), but there was a significant increase in female chairs from 9.6 to 21.6% p < 0.001). Female conveners were 3 times more likely to invite female speakers than male conveners (p < 0.001) and were 20 times more likely to invite female chairs than male conveners (p < 0.001).
    CONCLUSION: Visible role models are important in the pursuit of gender equity in surgery in order to break down stereotypes and the hidden curriculum. Intentional effort is required to achieve parity, and such efforts could include appointing more women to organising committees of scientific meetings.
  47. Surgery. 2021 Jul 19. pii: S0039-6060(21)00559-6. [Epub ahead of print]
      BACKGROUND: Surgeons are traditionally categorized as working either in academic or private/community practice, but some transition between the two environments. Here, we profile current academic cardiothoracic surgeons who began their attending careers in private or community practice. We hypothesized that research activity may distinguish cardiothoracic surgeons who started in non-academic versus academic practice.METHODS: Publicly available data regarding professional history and research productivity were collected for 992 academic cardiothoracic surgeons on faculty at the 77 cardiothoracic surgery training programs in the United States in 2018. Data are presented as medians analyzed with the Mann-Whitney test or proportions analyzed with Fisher exact test or the χ2 test.
    RESULTS: A total of 80 (8.1%) academic cardiothoracic surgery faculty started their careers in non-academic practice, and 912 (91.9%) started directly in academia. Those who started in non-academic practice spent a median 7.0 y in private/community practice and were more likely to be cardiac surgeons (68.8% vs 51.6%, P = .0132). They were equally likely to pursue a protected research fellowship (56.3% vs 57.0%, P = .9067) and publish research during training (92.5% vs 91.1%, P = .8374), but they published fewer total papers by the end of cardiothoracic surgery fellowship (3.0 vs 7.0, P = .0001) and fewer papers per year as an academic attending (0.8 vs 2.9, P < .0001). Nevertheless, the majority of cardiothoracic surgery faculty who started in non-academic practice are currently active in research (68.8%), and 2 such surgeons received National Institutes of Health R01 funding.
    CONCLUSION: Transitioning from non-academic to academic practice is an uncommon but feasible pathway for interested cardiothoracic surgeons.