bims-evares Biomed News
on Evaluation of research
Issue of 2020‒04‒12
twenty-five papers selected by
Thomas Krichel
Open Library Society

  1. Clin Exp Med. 2020 Apr 07.
    Shi S, Gao Y, Liu M, Bu Y, Wu J, Tian J, Zhang J.
      Several studies have demonstrated that exosomes have a very broad prospect in the field of cancer therapy. This study aims to identify the general characteristics, cooperation of authors, countries and explore the hot topics of the top 100 cited articles on tumor-related exosomes. We searched the Web of Science Core Collection on June 28, 2019, to collect related publications. Microsoft Excel 2016 and VOSviewer 1.6.9 were applied to analyze the publication year, citations, authors, countries, institutions, journals, and keywords. The top 100 articles were published between 1998 and 2017 with citations ranging from 181 to 2275. Cancer Research (n = 9) had the highest number of publications. Nature Cell Biology, Nature, and Nature Medicine are considered to be the core journals of tumor-related exosomes because they are among top 10 from different analytical perspectives. The USA (n = 49) and Harvard University (n = 9) were the most productive country and institution, respectively. There were active collaborations between countries. Kalluri R (n = 6) contributed the largest number of articles, and Taylor DD was the most co-cited author. Théry C and Al-Nedawi K are probably the two important experts as they are both the top 10 authors and top 10 co-cited authors. Three clusters were obtained after clustering analysis of the keywords. The main hot topics were the proteomic analysis and mechanism of vesicle activation and the role of exosomes in the diagnosis and progression of tumors. Further research should expand and develop new topics such as the role of exosomes in the treatment of cancers.
    Keywords:  Bibliometric analysis; Cancer; Citation; Exosome; Hot topics
  2. Blood Res. 2020 Mar;55(1): 1-9
    Seo B, Kim J, Kim S, Lee E.
      A bibliometric study is performed to analyze publication patterns in a specific research area and to establish a landscape model that can be used to quantitatively weigh publications. This study aimed to investigate AML research networks and to conduct a trend-related keyword analysis. We analyzed 48,202 studies about AML published from 1999 to 2019 in the Web of Science Core Collection. The network analysis was conducted using the R&R studio software. The journal Blood had the highest number of published articles with an h-index of 410. The USA had the highest number of total publications (18,719, 38.3%) and research funded by the government, institutions, and pharmaceutical companies (5,436, 10.8%). The institute with the largest number of publications was the MD Anderson Cancer Center. Kantarjian H, Garcia-Manero G, and Ravandi F were the leading authors of publications about AML. Keyword analysis revealed that FLT 3, micro-RNA, and NK cell topics were the hotspots in the cell and gene area in all publications. The overall AML research landscape is popular in the field of translational research as it can identify molecular, cell, and gene studies conducted by different funding agencies, countries, institutions, and author networks. With active funding and support from the Chinese government, the productivity of scientific research is increasing not only in the AML field but also in the medical/health-related science field.
    Keywords:  Acute myeloid leukemia; Bibliometric; Citation; Web of Science core collection
  3. Int J Environ Res Public Health. 2020 Apr 03. pii: E2449. [Epub ahead of print]17(7):
    Yeung AWK, Mozos I.
      This bibliometric study evaluated the scientific impact of papers dealing with osteoporosis detected by dental panoramic radiographs by performing citation analysis and cited reference analysis. Retrospective data was extracted from the Web of Science Core Collection database and imported into VOSviewer, CRExplorer, and CitNetExplorer for analyzing semantic contents, cited references, and temporal citation network. The 280 relevant papers identified were cited 4874 times, having an h-index of 38 and 17.4 citations per paper. The top five major contributing countries were Japan (n = 54, 19.3%), USA (n = 43, 15.4%), Brazil (n = 38, 13.6%), Turkey (n = 38, 13.6%), and the UK (n = 32, 11.4%). Citation per paper correlated with publication count among the authors and institutions. Mandibular cortical width was the most frequently used and most cited measurement index. References published during the 1970s and 1980s have built the foundation for the development of research that investigates the potential associations between osteoporosis and radiographic measurements on panoramic radiographs. Osteoporosis detection by dental panoramic radiographs is a perennially investigated research topic with global contributions. Panoramic radiographs are considered early detection and screening tools for osteoporosis by worldwide research.
    Keywords:  computer-aided diagnosis; dental radiology; digital dentistry; literature analysis; osteoporosis; panoramic radiograph
  4. Front Psychiatry. 2020 ;11 182
    Zeinoun P, Akl EA, Maalouf FT, Meho LI.
      Background: Mental health research output in the Arab region is increasing, yet little is known about its recent landscape. This study provides a bibliometric analysis of mental health research in all 22 Arab countries over the past decade. Method: We used 760 journals and numerous keywords to search for articles published between 2009 and 2018 by individuals affiliated with institutions located in the Arab region. We analyzed data within Arab countries and between Arab and non-Arab countries. Results: We found that research output in the Arab world has increased by almost 160% in the past ten years, in comparison to 57% for the rest of the world. The quality of publications has also steadily improved, and so did international collaboration. Despite the progress, the number of articles per capita remains remarkably lower for the Arab world compared to the rest of the world. Also, the majority of articles continue to emanate from a limited number of countries (Egypt, Saudi Arabia, and Lebanon) and institutions within these countries. Mental health research topics in the Arab region are similar to those found in low- and middle-income countries of Africa, Asia, Latin America, and the Caribbean. Conclusion: The region needs to invest more in mental health research to close the gap with other medical and healthcare research areas and with the rest of the world. The region also needs to increase its international collaboration and research training to produce higher-quality studies, attract more funding, and publish more in top journals. As the region's population continues to face increasing trauma as a result of war and terrorism, among others, the field is afforded an opportunity to establish a major standing in the healthcare domain. Researchers are uniquely poised to use their body of research evidence to effectively help people reengage with their environments and return to daily life activities.
    Keywords:  Middle East & North Africa (MENA); arab countries; bibliometrics; citation analysis; mental disorders; mental health
  5. J Sex Med. 2020 Apr 06. pii: S1743-6095(20)30130-2. [Epub ahead of print]
    Chouhan JD, Pearlman AM, Kovell RC, Terlecki RP.
      BACKGROUND: The penile prosthesis has been used for men with erectile dysfunction for nearly 5 decades. Although many articles examine various outcome measures, wide variability exists in the quality of these studies.AIM: We sought to critically evaluate the most referenced literature related to penile prosthesis outcomes over the last 10 years.
    METHODS: A PubMed search of the indexed English literature was performed using the search terms "prospective," "penile prosthesis," and "outcomes", and all relevant publications from 2009 to 2019 were reviewed. In addition, we performed a Google Scholar search for the same interval using the search term "penile prosthesis outcomes" to evaluate manuscripts which have been most commonly cited. The most heavily cited manuscripts were sorted for relevancy using Google's internal algorithm, and then, the articles were reviewed by the authorship team for appropriateness of the subject matter. Articles with less than 10 citations were excluded. We used the Oxford Center for Evidence-Based Medicine Criteria as part of our evaluation of the published data involving independent research, as opposed to review articles summarizing previously published findings.
    RESULTS: We evaluated the most-cited literature of the past decade relevant to penile prosthesis outcomes and reported the major findings in regards to infection, erosion, extrusion, device reliability, and satisfaction (both the patient and partner). The majority of these studies are retrospective in nature.
    CLINICAL IMPLICATIONS: From our review of the most commonly cited studies, there was no high-level evidence published in this area within the last 10 years. There are multiple barriers to producing these types of studies in the evaluation of penile prosthesis outcomes.
    STRENGTHS & LIMITATIONS: Using the most commonly cited articles allows us to understand the data that are being cited in other new publications. Focusing on the most cited articles on penile prosthesis outcomes in the last 10 years is a limitation as there have been many more studies published in this area.
    CONCLUSION: While many studies have examined penile prosthesis outcomes, most of the heavily cited literature consists of low-level evidence. Higher quality research is necessary to better assess penile prosthesis outcomes. Chouhan JD, Pearlman AM, Kovell RC, et al. A Quality Analysis of the Last Decade's Most Heavily Cited Data Relative to Outcomes After Penile Prosthesis Placement. J Sex Med 2020;XX:XXX-XXX.
    Keywords:  Erectile Dysfunction; Outcomes; Penile Prosthesis
  6. Environ Sci Pollut Res Int. 2020 Apr 08.
    Li J, Wang L, Liu Y, Song Y, Zeng P, Zhang Y.
      Metal-organic frameworks, an emerging class of porous material, have developed rapidly in recent years. In order to clarify the application of metal-organic frameworks in the field of environmental science, 1386 articles over the last 20 years were obtained from Scopus and analysed by the bibliometric method. And the collaboration between countries, institutions and authors and the co-occurrence of keywords were also conducted using VOSviewer. The results indicated that this area of research has entered a fast-developing stage. The number of articles published has grown from 7 articles in 1999 to 378 articles in 2018. The most productive country was China with 626 articles published. The most productive institution was the Chinese Academy of Sciences, and the most productive author was Jhung SH from Kyungpook National University of South Korea. Although metal-organic frameworks have been widely used in adsorption and catalytic degradation of pollutants from the environment, the removal mechanism of pollutants by MOFs, the stability improvement and the cost reduction of metal-organic frameworks are still the main challenges for their practical applications.
    Keywords:  Bibliometric; Environmental science; Metal-organic frameworks; Research trends
  7. J Med Libr Assoc. 2020 Apr;108(2): 262-269
    Woods S, Phillips K, Dudash A.
      Objective: As access to information grows in tandem with the growth of the Internet, access to grey literature also increases. Because little is known about the use of grey literature in nursing journals, the authors investigated the prevalence and types of grey literature citations in top nursing journals.Methods: We analyzed all citations (n=52,116) from articles published in 2011 in 6 top nursing journals selected from the Medical Library Association's Nursing and Allied Health Resource Section's 2012 "Selected List of Nursing Journals." Grey literature citations were identified and categorized by type.
    Results: Grey literature accounted for 10.4% of citations across all 6 journals. Publications from governments (54.3%) and corporate organizations (26.8%) were the most common types of grey literature.
    Conclusion: The substantial citation of grey literature in nursing journals shows that nursing scholars seek and use this category of information. These findings have implications for teaching and learning among nursing researchers and the information professionals who serve the nursing research community.
  8. Tob Induc Dis. 2020 ;18 16
    Zhang Q, Fan X, Yue Y, Zheng R.
      INTRODUCTION: Research on electronic cigarettes is an emerging field, with the number of articles in this field noted to have grown exponentially over recent years. We used a bibliometric analysis method (co-word analysis) to analyze the emerging trends and research hotspots in this field.METHODS: Publication data on electronic cigarettes from 2010 to 2018 were retrieved and downloaded from the PubMed database. Theme trends and knowledge structures were analyzed on the relevant research fields of electronic cigarettes by using a biclustering analysis, strategic diagram analysis, and social network analysis methods. Research hotspots were extracted and compared from three periods.
    RESULTS: Core topics that have continuously develop between the years 2010 and 2018 include: tobacco use cessation devices; tobacco products; tobacco use cessation devices/adverse effects; smoking prevention and adverse effects; electronic nicotine delivery systems/economics; and public health. Some currently undeveloped topics that could be considered as new future research directions include: tobacco use disorder/therapy; tobacco use disorder/epidemiology; students/psychology; students/statistics and numerical data; adolescent behavior/psychology; nicotine/toxicity; nicotinic agonists/administration and dosage; and electronic nicotine delivery systems/legislation and jurisprudence.
    CONCLUSIONS: Results suggest that some currently immature topics in strategic coordinates and emerging hotspots in social network graphs can be used as future research directions.
    Keywords:  bibliometric analysis; co-word analysis; electronic cigarette; social network analysis; strategic diagram analysis
  9. Environ Toxicol Pharmacol. 2020 Mar 20. pii: S1382-6689(20)30050-8. [Epub ahead of print]77 103374
    Andreo-Martínez P, Ortiz-Martínez VM, García-Martínez N, López PP, Quesada-Medina J, Cámara MÁ, Oliva J.
      A bibliometric analysis based on the Web of Science© (WOS) database was performed on bioavailability of pesticides in vegetables, food or wine related studies published from inception to 2018. A total of 1202 articles were subjected to examination. The results reveal that yearly production of scientific articles increased steadily. Journal and institution production, and author's keywords frequencies followed the Lotka's Law. Khan SU and White JC were the most productive authors. The most productive journals were Journal of Agricultural and Food Chemistry (55), and Journal of Ethnopharmacology (48), and the most common WOS subject category was Pharmacology & Pharmacy (419). USA (h-index of 40) produced 21.7 % of all articles, closely followed by China (20.6 %). Chinese Academy of Sciences (34) was the most productive research institutions. Finally, current and future trends in this area should focus on keywords such as pharmacokinetics, curcumin, in-vitro, nanoparticles, oral (bioavailability) and cell.
    Keywords:  Bibliometric review; Bioavailability; Food; Pesticides; Wine
  10. Animals (Basel). 2020 Apr 03. pii: E618. [Epub ahead of print]10(4):
    Manuelian CL, Penasa M, da Costa L, Burbi S, Righi F, De Marchi M.
      Due to the increasing interest in organic farming, an overview of this research area is provided through a bibliometric analysis conducted between April and May 2019. A total of 320 documents were published up until 2018 on organic livestock farming, with an annual growth rate of 9.33% and a clear increase since 2005; 268 documents have been published in 111 journals. Germany is the country with the largest number of published papers (56 documents). Authors' top keywords (excluding keywords used for running the search) included: animal welfare (29 times), animal health (22 times), cattle (15 times), grazing (10 times), and sheep (10 times). This could indicate that more research has been done on cattle because of the importance of this species in Germany. Moreover, the prevalence of the terms 'animal welfare' and 'animal health' may indicate that the research on organic livestock production has been focused on these two areas. The bibliometric analysis indicates that: i) countries focused the organic livestock production research on their main production, and ii) more research in species other than cattle and sheep is needed.
    Keywords:  bibliometrix R; cattle; organic; poultry; sheep
  11. Int J Environ Res Public Health. 2020 Apr 03. pii: E2463. [Epub ahead of print]17(7):
    Peponi A, Morgado P.
      "Smart city", "sustainable city", "ubiquitous city", "smart sustainable city", "eco-city", "regenerative city" are fuzzy concepts; they are established to mitigate the negative impact on urban growth while achieving economic, social, and environmental sustainability. This study presents the result of the literature network analysis exploring the state of the art in the concepts of smart and regenerative urban growth under urban metabolism framework. Heat-maps of impact citations, cutting-edge research on the topic, tip-top ideas, concepts, and theories are highlighted and revealed through VOSviewer bibliometrics based on a selection of 1686 documents acquired from Web of Science, for a timespan between 2010 and 2019. This study discloses that urban growth is a complex phenomenon that covers social, economic, and environmental aspects, and the overlaps between them, leading to a diverse range of concepts on urban development. In regards to our concepts of interest, smart, and regenerative urban growth, we see that there is an absence of conceptual contiguity since both concepts have been approached on an individual basis. This fact unveils the need to adopt a more holistic and interdisciplinary approach to urban planning and design, integrating these concepts to improve the quality of life and public health in urban areas.
    Keywords:  bibliometric network; distance maps; smart and regenerative urban growth; urban ecology; urban metabolism
  12. Heliyon. 2020 Mar;6(3): e03698
    Dynako J, Owens GW, Loder RT, Frimpong T, Gerena RG, Hasnain F, Snyder D, Freiman S, Hart K, Kacena MA, Whipple EC.
      Bibliometric studies are important to understand changes and improvement opportunities in academia. This study compared bibliometric trends for two major sports medicine/arthroscopy journals, the American Journal of Sports Medicine® (AJSM®) and Arthroscopy® over the past 30 years. Trends over time and comparisons between both journals were noted for common bibliometric variables (number of authors, references, pages, citations, and corresponding author position) as well as author gender and continental origin. Appropriate statistical analyses were performed. A p < 0.001 was considered statistically significant. One representative year per decade was used. There were 814 manuscripts from AJSM® and 650 from Arthroscopy®. For AJSM® the number of manuscripts steadily increased from 86 in 1986 to 350 in 2016; for Arthroscopy® the number of manuscripts increased from 73 in 1985/1986, to 267 in 2006, but then dropped to 229 in 2016. There were significant increases in all bibliometric variables, except for the number of citations which decreased in Arthroscopy®. There were significant differences in manuscript region of origin by journal (p = 0.000002). Arthroscopy® had a greater percentage of manuscripts from Asia than AJSM® (19.3% vs 11.5%) while AJSM® had a greater percentage from North America (70.3% vs 59.2%); both journals had similar percentages from Europe (18.2% for AJSM® and 21.6% for Arthroscopy®). For AJSM® the average percentage of female first authors was 13.3%, increasing from 4.7% in 1986 to 19.3% in 2016; the average percentage of female corresponding authors was 7.3%. For Arthroscopy®, the average percentage of female first authors was 8.1%, increasing from 2.8% in 1985/1986 to 15.7% in 2016 (p = 0.00007). In conclusion, AJSM® and Arthroscopy® showed an increase in most variables analyzed. Although Arthroscopy® is climbing at a higher rate than AJSM® for female authors, AJSM® has an overall greater percentage of female authors.
    Keywords:  AJSM®; Arthroscopy®; Author; Bibliometric; Bioinformatics; Biological sciences; Gender; Geographic region; Health sciences; Information science; Musculoskeletal system; Social sciences; Sports medicine
  13. S Afr Med J. 2019 Dec 05. 109(11b): 30-35
    Parry C, Myers B, Matzopoulos R, Morojele N, Siegfried N.
      BACKGROUND: Alcohol is one of the highest risk factors for death and disability in South Africa (SA). Objective. To explore the trajectory of empirical research on alcohol in SA between 1969 and 2019, with an emphasis on South African Medical Research Council (SAMRC) authored publications. Methods. We reviewed published research (Pubmed and Africa-Wide Information) using systematic methods, clear inclusion and exclusion criteria, and defined search terms. The search was not limited by language. Data synthesis was carried out by the first and last authors. Results. A total of 867 journal articles met the inclusion criteria, with 243 (28.0%) authored or co-authored by SAMRC researchers. For the latter group, three-quarters had an SAMRC researcher as first or last author. Over three-quarters (78.6%) of the SAMRC author positions ('first', 'last' or 'other, counting researchers from a unit only once, but counting authors across different units on a single publication) were from intramural units. Over half the articles authored by SAMRC researchers focused on non-communicable diseases (55.9%), 23.8% focused on communicable diseases, and 10% on crime, violence or injury. Few articles focused on alcohol and tuberculosis (TB), alcohol and cancer, or alcohol policy. Over three-quarters (76.9%) were epidemiological in nature, and 65.3% were cross-sectional studies. There were 17 reviews (7 systematic) and 11 randomised controlled trials (RCTs). There was an increase in the annual number of publications over the 50-year period for both SAMRC and non-SAMRC researchers. Over time, there has been a trend towards publishing on alcohol research in journals published outside SA, but the SAMJ still remains a popular journal choice. Conclusion. The SAMRC has contributed substantially to the growing field of alcohol research in SA, but gaps in areas such as alcohol policy evaluation, alcohol and its association with TB and cancer, and interventional research, are evident.
  14. J Alzheimers Dis. 2020 Apr 01.
    Daly T, Houot M, Barberousse A, Agid Y, Epelbaum S.
      The amyloid cascade hypothesis (ACH) has dominated contemporary biomedical research into Alzheimer's disease (AD) since the 1990 s but still lacks definitive confirmation by successful clinical trials of anti-amyloid medicines in human AD. In this uncertain period regarding the centrality of amyloid-β (Aβ) in AD pathophysiology, and with the community apparently divided about the ACH's validity, we used citation practices as a proxy for measuring how researchers have invested their belief in the hypothesis between 1992 and 2019. We sampled 445 articles citing Hardy & Higgins (1992, "HH92") and classified the polarity of their HH92 citation according to Greenberg (2009)'s citation taxonomy of positive, neutral, and negative citations, and then tested four hypotheses. We identified two major attitudes towards HH92: a majority (62%) of neutral attitudes with consistent properties across the time period, and a positive attitude (35%), tending to cite HH92 earlier on within the bibliography as time went by, tending to take HH92 as an established authority. Despite the majority of neutral HH92 citations, there was a positive majority of attitudes toward different versions of the ACH and anti-amyloid therapeutic strategies (65%), suggesting that the ACH has been dominant and has undergone significant refinement since 1992. Finally, of those 110 original articles within the sample also testing the ACH empirically, an overwhelming majority (89%) returned a pro-ACH test result, suggesting that the ACH's central claim is reproducible. Further studies will quantify the extent to which results from different methods within such original studies convergence to provide a robust conclusion vis-à-vis Aβ's pathogenicity in AD.
    Keywords:  Alzheimer’s disease; Karl Popper; amyloid cascade hypothesis; amyloid-β; belief; bibliometrics; citations; confirmation; reproducibility; scientific bias
  15. Eur Rev Med Pharmacol Sci. 2020 Mar;pii: 20712. [Epub ahead of print]24(6): 3411-3421
    Lou J, Tian SJ, Niu SM, Kang XQ, Lian HX, Zhang LX, Zhang JJ.
      OBJECTIVE: On December 8, 2019, many cases of pneumonia with unknown etiology were first reported in Wuhan, China, subsequently identified as a novel coronavirus infection aroused worldwide concern. As the outbreak is ongoing, more and more researchers focused interest on the COVID-19. Therefore, we retrospectively analyzed the publications about COVID-19 to summarize the research hotspots and make a review, to provide reference for researchers in the world.MATERIALS AND METHODS: We conducted a search in PubMed using the keywords "COVID-19" from inception to March 1, 2020. Identified and analyzed the data included title, corresponding author, language, publication time, publication type, research focus.
    RESULTS: 183 publications published from 2020 January 14 to 2020 February 29 were included in the study. The first corresponding authors of the publications were from 20 different countries. Among them, 78 (42.6%) from the hospital, 64 (35%) from the university and 39 (21.3%) from the research institution. All the publications were published in 80 different journals. Journal of Medical Virology published most of them (n=25). 60 (32.8%) were original research, 29 (15.8%) were review, 20 (10.9%) were short communications. 68 (37.2%) epidemiology, 49 (26.8%) virology and 26 (14.2%) clinical features.
    CONCLUSIONS: According to our review, China has provided a large number of research data for various research fields, during the outbreak of COVID-19. Most of the findings play an important role in preventing and controlling the epidemic around the world. With research on the COVID-19 still booming, new vaccine and effective medicine for COVID-19 will be expected to come out in the near future with the joint efforts of researchers worldwide.
  16. PLoS One. 2020 ;15(4): e0231192
    Chen X, Chen J, Cheng G, Gong T.
      Artificial intelligence (AI) assisted human brain research is a dynamic interdisciplinary field with great interest, rich literature, and huge diversity. The diversity in research topics and technologies keeps increasing along with the tremendous growth in application scope of AI-assisted human brain research. A comprehensive understanding of this field is necessary to assess research efficacy, (re)allocate research resources, and conduct collaborations. This paper combines the structural topic modeling (STM) with the bibliometric analysis to automatically identify prominent research topics from the large-scale, unstructured text of AI-assisted human brain research publications in the past decade. Analyses on topical trends, correlations, and clusters reveal distinct developmental trends of these topics, promising research orientations, and diverse topical distributions in influential countries/regions and research institutes. These findings help better understand scientific and technological AI-assisted human brain research, provide insightful guidance for resource (re)allocation, and promote effective international collaborations.
  17. MethodsX. 2020 ;7 100818
    Quan-Hoang V, Anh-Vinh L, Viet-Phuong , Phuong-Hanh H, Manh-Toan H.
      The paper proposes a new method for conducting a literature review by structured data of more than 2200 scientific articles and 1300 researchers on SSHPA (Social Sciences and Humanities Peer Awards), an open database of Vietnamese social scientists' scientific productivity. Based on the logical structure of SSHPA, the authors create a specialized database for the literature review: SDA (SSHPA Data Analysis). Combining expert's caliber and computational algorithms, SDA is expected to offer an immensely efficient and analytical based method of scanning data, hence ameliorating the traditional approach to conducting a literature review.•A specialized database for literature review is created using the scientific articles and author profiles from SSHPA, an open database of Vietnamese social scientists' productivity.•The review database assigns values of topics or methodological attributes to articles sourced from SSHPA.•Then, the authors can query comprehensive data tables, graphs, or diagrams to use for literature review.
    Keywords:  Database; Literature review; NAFOSTED, National Foundation for Science & Technology Development; SDA, SSHPA Data Analysis; SSHPA, Social Sciences and Humanities Peer Awards; Structured data; Vietnam
  18. J Med Libr Assoc. 2020 Apr;108(2): 229-241
    Reznik-Zellen R, Carroll AJ, Harrington EG, Joubert DJ, Nix T, Alpi KM.
      Objective: The primary objective of this study was to explore different dimensions of Journal of the Medical Library Association (JMLA) authorship from 2006-2017. Dimensions that were evaluated using coauthorship networks and affiliation data included collaboration, geographical reach, and relationship between Medical Library Association (MLA) member and nonmember authors. A secondary objective was to analyze the practice and practical application of data science skills.Methods: A team of librarians who attended the 2017 Data Science and Visualization Institute used JMLA bibliographic metadata extracted from Scopus, together with select MLA membership data from 2006-2017. Data cleaning, anonymization, analysis, and visualization were done collaboratively by the team members to meet their learning objectives and to produce insights about the nature of collaborative authorship at JMLA.
    Results: Sixty-nine percent of the 1,351 JMLA authors from 2006-2017 were not MLA members. MLA members were more productive and collaborative, and tended to author articles together. The majority of the authoring institutions in JMLA are based in the United States. Global reach outside of the United States and Canada shows higher authorship in English-speaking countries (e.g., Australia, United Kingdom), as well as in Western Europe and Japan.
    Conclusions: MLA support of JMLA may benefit a wider network of health information specialists and medical professionals than is reflected in MLA membership. Conducting coauthorship network analyses can create opportunities for health sciences librarians to practice applying emerging data science and data visualization skills.
  19. S Afr Med J. 2019 Dec 05. 109(11b): 3-7
    Peer N, George C, Kengne AP.
      Hypertension prevalence in sub-Saharan Africa (SSA) is high, is rising and has emerged as the most prevalent cardiovascular disease risk factor. Research is required to provide evidence-based findings to prioritise hypertension prevention and control. This systematic review aims to describe the distribution of and trends in scientific outputs on hypertension prevalence in population-based studies in SSA over the last three decades. Relevant English-language articles documenting hypertension prevalence in population-based studies in SSA, published between 1 January 1990 and 25 April 2019, were identified through a comprehensive electronic search of MEDLINE. Of the 3 795 citations retrieved, 414 fulfilled the inclusion criteria. Scientific outputs increased incrementally per 10-year period: 1990 - 1999: n=32; 2000 - 2009: n=65; and 2010 - 2019: n=317. The greatest number of scientific outputs over the 30-year period originated from South Africa (n=81) and Nigeria (n=74). Increasing scientific outputs on hypertension prevalence in SSA have not translated into optimal hypertension management, which remains inadequate.
  20. Sociol Q. 2020 ;61(1): 128-163
    Korom P.
      This study is the first to systematically identify the most recognized scholars in sociology in the 1970s and 2010s by citation counts. This is achieved on the basis of a newly generated text corpus of approximately 49,000 pages, which encompasses various genres of literature (encyclopedias, handbooks, journals, textbooks). Investigations into common characteristics reveal that, in the 1970s, elites typically received their PhD from Columbia University, Harvard University, or the University of Chicago. The contemporary elite is partly European. In general, eminence is short-lived (<40 years). Over time, the elite has remained socially heterogeneous, but becomes more mobile and increasingly moves between universities. Coverage in specialist and generalist journals suggests that elite status in sociology cannot be achieved simply by dominating multiple communities inside sociology; elite sociologists are typically well received in the discipline's core.
    Keywords:  Prestige elite; bibliometrics; collective biography; eminence; sociology
  21. Cleft Palate Craniofac J. 2020 Apr 09. 1055665620913176
    Hudson AS, Morzycki AD, Guilfoyle R.
      OBJECTIVE: Studies have begun analyzing how the world converses on social media platforms about medical/surgical topics. This study's objective was to examine how cleft lip and palate, two of the most common birth defects in the world, are discussed on the social media platform Twitter. No study to date has analyzed this topic.METHODS: Tweets were identified using any of the following: cleft, cleft lip, cleft palate, #cleft, #cleftlip, #cleftpalate. Eight months between 2017 and 2018 were analyzed.
    MAIN OUTCOME MEASURES: The primary outcome was the tweet subject matter. Secondary outcomes were author characteristics, tweet engagement, multimedia, and tweet accuracy.
    RESULTS: A total of 1222 tweets were included. #Cleft was the most common hashtag (71%), and it was significantly associated with more retweets (P = .03). Twenty-seven countries tweeted, with the United States (34%) and India (27%) producing the most. Charities (36%), hospitals (14%), and physicians (13%) were the most common authors. Over three-quarters of tweets were self-promotional. The top content included charity information (22%) and patients' cleft stories (14%). Tweets about patient safety/care and surgical service trips generated the most engagement. The accuracy of educational tweets was 38% low accuracy and 1% inaccurate. One hundred forty-nine tweets (12%) discussed a published research article, but 41 tweets did not share a link.
    CONCLUSIONS: Charities dominate the cleft lip/palate "Twitterverse." Most tweets were self-promotional, and over a third of educational tweets were low accuracy. As the cleft social media community continues to grow, we recommend using the hashtag #cleft to reach a wider audience.
    Keywords:  cleft; cleft lip; cleft palate; social media; twitter
  22. Cureus. 2020 Mar 08. 12(3): e7205
    Yue T, Khosa F.
      Introduction Academic medicine is notorious for being "male-dominated." We hypothesized that there were significant and quantifiable levels of gender disparity in academic orthopedic surgery, and this article attempts to quantify the extent of the existing disparity. Also, we examined the research productivity of academic faculty in orthopedic surgery and its correlation with academic ranks and leadership positions. Methods Our study design was cross-sectional in nature. We searched the Canadian Resident Matching Service (CaRMS) to compile a list of medical schools that offer orthopedic surgery training for residency. A total of 713 academic orthopedic surgeons met our inclusion criteria. Of the 713 orthopedic surgeons, 518 had an H-index score available on Elsevier's Scopus (Elsevier, Amsterdam, Netherlands). The gender, academic rank, leadership position, and H-index were compared. Data analysis was done with Statistical Package for the Social Sciences (SPSS; IBM, Armonk, NY). The binomial negative regression was used to compare the average H-index between men and women at each rank. Results Our study results reveal that academic orthopedic surgery in Canada is male-dominated, with men holding 87% of the academic positions. Female academic orthopedic surgeons held lower academic ranks, such as assistant professor or lecturer. Women orthopedic surgeons had lower H-index scores compared to their counterparts in ranks above the assistant professor. Our findings imply that research productivity and the ratio of average H-index scores comparing men to women (HM/HF) grow larger with each academic rank. At a 90% confidence level, women were less likely to hold leadership positions than men at an odds ratio (OR) of 0.52 [90% confidence interval (CI): 0.29-0.925, p: 0.03]. There were no significant differences in H-index between men and women for departmental leadership positions. Conclusion Women were underrepresented in number, rank, and academic productivity (H-index). We offer possible factors that may have contributed to this finding as well as potential solutions.
    Keywords:  gender disparity; h-index; orthopedics; surgeons
  23. Blood Purif. 2020 Apr 08. 1-5
    Kellum JA.
      INTRODUCTION: Reports of consensus conferences are usually valued less than reports of clinical trials even when rigorous methodology is used. However, limited data are available comparing the impact of these 2 methods of shaping clinical practice.OBJECTIVE: Compare the publication impact of consensus conferences and clinical trials.
    METHODS: Consensus publications from the Acute Disease Quality Initiative (ADQI) from 2002 through 2017 were identified and classified by subject matter. Randomized trials were identified in the same publication year and subject in journals, starting with the highest impact factor. Both publication types were matched, and total citations were determined for each using Google Scholar. A secondary analysis compared total costs for each publication type.
    RESULTS AND CONCLUSIONS: Seventeen ADQI consensus conference reports and 17 randomized trials were identified. ADQI reports received a similar number of citations per paper (median, interquartile range) compared to randomized trials (132, 54-228; vs. 159, 60-340, p = ns). Similarly, 10 (58.8%) ADQI reports and 10 randomized trials were cited >100 times. On average, ADQI reports appeared in journals with lower impact factors compared to clinical trials (5.4 ± 4.6 vs. 25.4 ± 27.1; p < 0.01). The median cost per citation (USD 2017) for ADQI reports was USD 606.01 compared to almost twice this figure, USD 1,182.59, for clinical trials on the same topics (p = 0.09). Despite being published in lower impact factor journals, consensus reports on topics in critical care nephrology, received similar citations to randomized controlled trials published the same year.
    Keywords:  Acute kidney injury; Cardiorenal syndrome; Continuous renal replacement therapy; Fluids; Sepsis