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The bioethics research conducted in Ibero‐American countries has been very much restricted to its own realm. The aim of this study was to perform a bibliometric evaluation of bioethics papers by authors affiliated with Ibero‐American institutions, and to determine how their work influences global bioethics literature. We performed a literature search in the Web of Science Core Collection (WoS CC) and Scopus. We identified a total of 5,975 documents, of which 84.3% were articles, 11.6% reviews and 4.1% book chapters. The median number of citations per paper was higher in English‐language journals. Only 10 articles published between 2010 and 2019 in peer‐reviewed bioethics journals and produced exclusively by authors from Ibero‐American institutions garnered more than 15 citations. Our study suggests that if researchers from Ibero‐American institutions want to influence global bioethical thinking, they must make the required leap in quality to be able to publish in high‐quality bioethics and mainstream journals. [ABSTRACT FROM AUTHOR]

Introduction: It has been observed that women are less represented in research on addictions, which may diminish their contribution to the area. Purpose: To analyze the existence of gender inequality in different activities related to research on addictions. Methods: The representation of Spanish women was calculated from three perspectives: in the grants to research projects funded by the Spanish Plan Nacional Sobre Drogas (PNSD), in the publications derived from these projects, and in the editorial committees (EC) of a selection of journals on addictions. Results: Only 26.9% of the main researchers in the PNSD grants were women. No statistically significant differences were observed between the sex of the principal investigator, the number of researchers, their sex and the collaboration with researchers of another sex in the publications. In three foreign journals only one Spanish woman participates as the only member of the EC (Alcohol and Alcoholism, Alcohol and Addictive Behaviors). Conclusions: Only a third of the main researchers of the PNSD grants are women and their representation has not increased in recent years. The presence of women in the EC of the Spanish journals of addictions is the fifth part that the one of the men and in the foreign journals their representation is smaller. [ABSTRACT FROM AUTHOR]

The Covid-19 pandemic has introduced challenges throughout the world and is endangering people's prosperity. To these health, economic, political, and social challenges have been added those related to the management and dissemination of information, mainly concerning its exponential growth, veracity, and dissemination. Providing objective evidence-based information contributes to meeting these challenges. Social media and social networks are playing a key role in informing society about the evolution of the pandemic and progress towards its eradication. However, social networks are also a vehicle for the transmission of biased or false news that can endanger people's health. Information professionals play a key role in correcting misinformation if they are able to filter out untruthful information and make resources with proven quality available to the population. In addition, they must manage scientific information about the pandemic, which is advancing at an accelerated pace. Currently, China is the leader while Spain is in fifth place in the development of research projects and scientific publications. The scientific research focuses on epidemiological aspects, respiratory diseases, drug treatments, and diagnostic tests. Many journals, databases, repositories, and other information systems have made their publications and other information resources available in record time to encourage the progress of such research. [ABSTRACT FROM AUTHOR]

Background: Randomised controlled trials (RCTs) provide the most reliable information to inform clinical practice and patient care. We aimed to map global clinical research publication activity through RCT-related articles in high-impact-factor medical journals over the past five decades.Methods: We conducted a cross-sectional analysis of articles published in the highest ranked medical journals with an impact factor > 10 (according to Journal Citation Reports published in 2017). We searched PubMed/MEDLINE (from inception to December 31, 2017) for all RCT-related articles (e.g. primary RCTs, secondary analyses and methodology papers) published in high-impact-factor medical journals. For each included article, raw metadata were abstracted from the Web of Science. A process of standardization was conducted to unify the different terms and grammatical variants and to remove typographical, transcription and/or indexing errors. Descriptive analyses were conducted (including the number of articles, citations, most prolific authors, countries, journals, funding sources and keywords). Network analyses of collaborations between countries and co-words are presented.Results: We included 39,305 articles (for the period 1965-2017) published in forty journals. The Lancet (n = 3593; 9.1%), the Journal of Clinical Oncology (n = 3343; 8.5%) and The New England Journal of Medicine (n = 3275 articles; 8.3%) published the largest number of RCTs. A total of 154 countries were involved in the production of articles. The global productivity ranking was led by the United States (n = 18,393 articles), followed by the United Kingdom (n = 8028 articles), Canada (n = 4548 articles) and Germany (n = 4415 articles). Seventeen authors who had published 100 or more articles were identified; the most prolific authors were affiliated with Duke University (United States), Harvard University (United States) and McMaster University (Canada). The main funding institutions were the National Institutes of Health (United States), Hoffmann-La Roche (Switzerland), Pfizer (United States), Merck Sharp & Dohme (United States) and Novartis (Switzerland). The 100 most cited RCTs were published in nine journals, led by The New England Journal of Medicine (n = 78 articles), The Lancet (n = 9 articles) and JAMA (n = 7 articles). These landmark contributions focused on novel methodological approaches (e.g. the "Bland-Altman method") and trials on the management of chronic conditions (e.g. diabetes control, hormone replacement therapy in postmenopausal women, multiple therapies for diverse cancers, cardiovascular therapies such as lipid-lowering statins, antihypertensive medications, and antiplatelet and antithrombotic therapy).Conclusions: Our analysis identified authors, countries, funding institutions, landmark contributions and high-impact-factor medical journals publishing RCTs. Over the last 50 years, publication production in leading medical journals has increased, with Western countries leading in research but with low- and middle-income countries showing very limited representation. [ABSTRACT FROM AUTHOR]

The objective of this work is to identify the different names, positions, and roles of editorial board members (EBMs) of journals in the Information Science and Library Science (ISLS) field of the Journal Citation Reports (JCR) and to establish a classification of the different roles to improve communication between editors and researchers. Among the 86 journals included in the ISLS field, the first and last names, position, and institutional affiliation of each EBM were extracted from 84 journals that allowed access to committee information. The information was standardized, and the positions were classified by consensus into major groups according to the role they play in the journals. The 84 journals included 4,122 positions held by EBMs, distributed in 201 positions and classified into 11 broad categories. The majority of positions were included in the Editorial Board category (n = 1,516), followed by Editorial Advisory Board (n = 734) and Associate Editor (n = 566). The journals were published by 36 publishers, with Elsevier and Taylor & Francis contributing the most journals (11 each). The journals in which the EBMs had the highest percentage of foreign members were those published in the Netherlands. This study provides a picture of the broad distribution of the roles and terminological titles that EBMs have in Information Science and Library Science journals. Because of this diversity, it is advisable to develop a guide to good editorial practices that includes both a description of the complex range of roles performed by EBMs and a unified nomenclature for these universal positions. [ABSTRACT FROM AUTHOR]

The availability of research data sets is an important milestone because it can enhance the dynamics of research. This study aims to analyze the PubMed Central repository to determine the availability and type of raw data sets in Cell & Tissue Engineering journals indexed in Journal Citation Reports. The number and types of files were registered. The main finding of this study is that, beyond the mandatory deposit of data in specific repositories that some journals require, the exchange of data as supplementary material in the Cell & Tissue Engineering journals is not a common practice since researchers are still reticent to do so. [ABSTRACT FROM AUTHOR]

The professional and technical aspects associated with the management of research data have advanced: technical infrastructures or descriptive metadata schemes. There are others, related with the research field, which are still under study due to the need now to make them available as open data. This paper makes a bibliographical review and reference web sites that allow to identify the latest advances and research trends on issues related with research data. Some of them need to be addressed urgently in our opinion and experience in this field: data publication in journals, study of the behaviour of authors and methods to measure the impact of the data. The aim of this work is to highlight the outstanding challenges in a moment when there is a disruptive change in its exchange given the amount of data available as open data. [ABSTRACT FROM AUTHOR]

The article presents a scientific research on patients with multiple sclerosis (MS) by analyzing data on the bibliographic analysis of articles published from 2003 to 2012. Mentioned is the use of Science Citation Index-Expanded (SCI-E) database from online Web of Science (WOS) platform. Data from "Multiple Sclerosis and Multiple Sclerosis Journal" is also evaluated.

The article provides an in-depth analysis of international scientific research on the evaluation of policies, plans, programs, and projects aimed at preventing drug use. It discusses the most cited works in the field and analyzes thematic trends and associations among keywords related to substance abuse prevention. Additionally, it examines the annual evolution, production, and impact of journals, institutions, and countries involved in this research domain.

Objectives: To analyse the coverage and main bibliometric indicators of Insights into Imaging in Scopus and the Emerging Sources Citation Index (ESCI) from the Web of Science Core Collection database. Methods: The evolution of journal production in the Scopus database was analysed according to document types, collaboration indexes between authors and institutions, and citation indicators (number of citations, SCImago Journal Rank, quartile, h-index, and most cited works). Networks of collaboration among authors, institutions, and countries were also analysed, as well as those of co-word networks. As a complementary source of information, the Emerging Source Citation Index from the Web of Science database was also considered. Results: Four hundred seventy-four papers were included in Scopus and 292 in ESCI. The index of collaboration was 5.18 for authors and 2.74 for institutions. International collaboration occurred in 24.7% of the papers. The number of citations received in Scopus (4295) exceeds the number of citations received in ESCI (1177). The average number of citations per paper was 9.06 in Scopus versus 4.03 in ESCI. The h-index was 29 in Scopus and 16 in ESCI. Several collaborative groups were identified at the national and international level. Conclusions: There is a progression of Insights into Imaging in the ranking of journals in the area that, if maintained, will allow it to remain in the first quartile in the Scopus database. The main topics of interest were technologies such as 'Magnetic resonance imaging', 'Computed tomography', 'Radiology', and 'Ultrasonography' and diseases such as 'Breast cancer' and those related to 'Paediatrics'. [ABSTRACT FROM AUTHOR]

Objective: To characterize global research on the effectiveness of drug use prevention policies, plans, programs and projects, based on the analysis of research articles published and indexed in scientific databases. Material and methods: Articles on this topic contained in the Web of Science Core Collection database were downloaded and transferred to a Microsoft Access database using a broad search profile that has already been successfully applied in other works. To characterize the scientific production, methods and indicators from the field of bibliometrics were used, as well as social network analysis. Results: The number of published articles (1266) increased, only diminished in the first years of the epidemic by Covid-19. The subject areas with the highest number of papers were Substance Abuse (435), Public Environmental & Occupational Health (394), Psychiatry (163) and Psychology Clinical (157). Articles published by institutions in the United States, United Kingdom, Australia and Canada predominated. The most studied topics were those related to alcohol abuse, smoking, opioids and cannabis. Conclusions: A progressive increase in the number of articles on the analyzed topic and institutional collaboration has been confirmed, which is indicative of its health and scientific interest. Alcoholism and smoking are the two most studied addictions in these papers, and the most frequent and most cited topics deal with prevention in adolescence, therapeutic compliance, the effectiveness of harm reduction programs and prevention from primary care. [ABSTRACT FROM AUTHOR]

Objectives: To analyse the coverage and main bibliometric indicators of Insights into Imaging in Scopus and the Emerging Sources Citation Index (ESCI) from the Web of Science Core Collection database. Methods: The evolution of journal production in the Scopus database was analysed according to document types, collaboration indexes between authors and institutions, and citation indicators (number of citations, SCImago Journal Rank, quartile, h-index, and most cited works). Networks of collaboration among authors, institutions, and countries were also analysed, as well as those of co-word networks. As a complementary source of information, the Emerging Source Citation Index from the Web of Science database was also considered. Results: Four hundred seventy-four papers were included in Scopus and 292 in ESCI. The index of collaboration was 5.18 for authors and 2.74 for institutions. International collaboration occurred in 24.7% of the papers. The number of citations received in Scopus (4295) exceeds the number of citations received in ESCI (1177). The average number of citations per paper was 9.06 in Scopus versus 4.03 in ESCI. The h-index was 29 in Scopus and 16 in ESCI. Several collaborative groups were identified at the national and international level. Conclusions: There is a progression of Insights into Imaging in the ranking of journals in the area that, if maintained, will allow it to remain in the first quartile in the Scopus database. The main topics of interest were technologies such as 'Magnetic resonance imaging', 'Computed tomography', 'Radiology', and 'Ultrasonography' and diseases such as 'Breast cancer' and those related to 'Paediatrics'. [ABSTRACT FROM AUTHOR]

Objective To study the most important metrics of publication in the field of reproductive medicine over the decade 2003–2012 to aid in discerning the clinical, social, and epidemiologic implications of this relatively new but rapidly emerging area in medical sciences. Design Bibliometric analysis of most-cited publications from Web of Science databases. Setting Not applicable. Patient(s) None. Intervention(s) None. Main Outcome Measure(s) Most productive and frequently cited investigators, institutions, and countries and specific areas of research, scientific collaborations, and comparison of the growth of reproductive medicine research compared with other areas of medical investigation such as obstetrics and gynecology and related science categories. Result(s) We found that 90 investigators with more than 1,000 citations had jointly published 4,010 articles. A continued rise in the impact factor of reproductive medicine journals was seen. The number of publications in reproductive medicine grew more rapidly compared with other science categories. Presently 22% of highly cited articles in reproductive medicine research are published in journals belonging to science categories outside reproductive medicine. The most-cited study groups are situated in the Netherlands, Belgium, Spain, the United States, and the United Kingdom, and collaborative studies have been increasing. Conclusion(s) Reproductive medicine research and subsequent clinical development have attained scientific growth and maturity. High-quality research is increasingly being published in high-impact journals. The increase in (inter)national collaborations seems to be key to the field's success. [ABSTRACT FROM AUTHOR]

Purpose The purpose of this paper is to analyse the degree of accessibility of a set of electronic journals that are hosted on widely used online scientific journal publishing platforms and whose content quality has already been certified. Two studies were performed, in which the accessibility of the selected platforms was studied in 2011 and 2016.Design/methodology/approach The research was performed on publishing platforms than hosted more than 20 journals about human behaviour and factors that may influence it. The evaluation was carried out following the methodology described by the Web Accessibility Initiative in their Website Accessibility Conformance Evaluation Methodology.Findings The results show that, in spite of an improvement in accessibility, all the analysed electronic consultation platforms contain errors that could hinder their users’ access to their content. The incidence of errors found varies considerably among platforms. As the user interface of each platform analysed is common to all the online scientific electronic journals it hosts, the results obtained are valid for all other journals hosted on a given platform.Research limitations/implications Obtained results were valid in the date and time the websites were analysed. Changes made on the websites since then make that the results of an accessibility analysis would be different.Practical implications Analysed platforms would require taking steps to ensure their accessibility.Social implications Users with disabilities cannot use these platforms appropriately due to the accessibility problems found. The lack of web accessibility also has implications regarding visibility of published articles and common users.Originality/value This work offers a systematic analysis that includes manual accessibility evaluation, which has not been performed in scientific article publishing platforms to the extent presented in this paper. Articles found in the literature perform automatic analyses, which lack the depth of a manual one. Besides, when manual accessibility analysis is performed, usually the home page of a platform or journal alone is considered. [ABSTRACT FROM AUTHOR]

This article is a summary of the different pathways to publish research data, of metrics for evaluating publishing and reuse, and of the existing services for measuring the reuse of research data. It is not yet possible to accurately analyze the metrics for open research data and this is one of the reasons why, in general, researchers do not include them in the assessment of their work. In order to further the use of these tools, it is necessary to increase the number of studies about these evaluation metrics. [ABSTRACT FROM AUTHOR]

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. [ABSTRACT FROM AUTHOR]

The food industry is in need of analytical solutions to maintain high quality and safety standards during the entire food production chain. Spectroscopy applications are targeted as a major solution due to its cost-effective, simple, efficient and multiparametric nature. Bibliometric studies provide a critical evaluation of the status of a research topic through the quantification of measurable outcomes of research activity. The main aim of this study was to use a bibliometric approach to the evaluation of the current status of the spectroscopy research applied to food science and technology. The critical evaluation of the results showed the most commonly used spectroscopy applications as well as the main attributes quantified. The bibliometric analysis also showed towards which food products the applications are directed. Intense research activity was observed for fruits, vegetables, cereals, meat, olive oil, water or wine. The use of near infrared in reflectance mode to nondestructively evaluate food quality was the main focus for most of the studies. Raman and fluorescence spectroscopy were also observed as frequently investigated techniques. Moreover, food adulteration, authentication, identification and quantification were the main applications reported. The incorporation of spectroscopy technology into food production processes is expected to progressively take place. [ABSTRACT FROM AUTHOR]

Abstract The main aim of this study was to analyse scientific and energy production, funding, collaboration among countries and most cited papers on the renewable energies topic through bibliometric and social network study of articles included in the Web of Science database. 12,167 papers were recovered from 2007 to 2016. Wind power is the energy from which a greater number of articles have been published (n = 3,930), followed by solar energy (n = 2,570) and ocean energy (n = 1,565). The United States leads the world production of articles (n = 2,320), followed by China (n = 1,629), the United Kingdom (n = 1007), Germany (n = 730) and Spain (n = 729). China is the leading country in financed works (80%), followed by South Korea (77%), Spain (61%) and the United States (59%). An important level of international collaboration has been identified, notably popping up the triangle made by United States, China and the European Union. Highlights • Scientific study based in the analysis of the energy production, funding and collaboration among countries. • Wind power is the energy from which a greater number of articles have been published. • The United States leads the world production of articles. • China is the leading country in financed works. • The triangle made by United States, China and the European Union have the most important level of collaboration. [ABSTRACT FROM AUTHOR]

Precision agriculture (PA) is used to improve agricultural processes. A better understanding of PA as well as the evolution of the research status through the available literature are reported and discussed in this study. The Web of Science (WoS) was used to obtain the research records under study. Indicators of scientific productivity, collaboration between countries and research impact were evaluated through a social network analysis. The keywords included in the publications and subject areas under which the research was published were also evaluated through subject analysis. A total of 2027 articles were analysed from 1994 to 2014. The most productive journals were 'Computers and Electronics in Agriculture' (n = 191) and 'Precision Agriculture' (n = 110). The most frequent keywords were 'management' (n = 243), 'yield' (n = 231), 'soil' (n = 198) and 'variability' (n = 190). The collaboration network showed the United States occupying a central position, in combination with some leading countries such as Brazil, Germany, People's Republic of China, Canada, Australia and Spain. A steady increase in PA research was identified during the last decade, which was even more sharp between 2010 and 2014. The increased importance of PA research has recently led to the birth of specific journals such as Precision Agriculture. The increasing number of journals that publish articles related to the topics included in the WoS must also be considered. The network analysis identified a number of developed countries in the hotspot of international collaboration. [ABSTRACT FROM AUTHOR]

Background: The management of comorbidity and multimorbidity poses major challenges to health services around the world. Analysis of scientific research in comorbidity and multimorbidity is limited in the biomedical literature. This study aimed to map global scientific research in comorbidity and multimorbidity to understand the maturity and growth of the area during the past decades. Methods and findings: This was a cross-sectional analysis of the Web of Science. Searches were run from inception until November 8, 2016. We included research articles or reviews with no restrictions by language or publication date. Data abstraction was done by one researcher. A process of standardization was conducted by two researchers to unify different terms and grammatical variants and to remove typographical, transcription, and/or indexing errors. All potential discrepancies were resolved via discussion. Descriptive analyses were conducted (including the number of papers, citations, signatures, most prolific authors, countries, journals and keywords). Network analyses of collaborations between countries and co-words were presented. During the period 1970–2016, 85994 papers (64.0% in 2010–2016) were published in 3500 journals. There was wide diversity in the specialty of the journals, with psychiatry (16558 papers; 19.3%), surgery (9570 papers; 11.1%), clinical neurology (9275 papers; 10.8%), and general and internal medicine (7622 papers; 8.9%) the most common. PLOS One (1223 papers; 1.4%), the Journal of Affective Disorders (1154 papers; 1.3%), the Journal of Clinical Psychiatry (727 papers; 0.8%), the Journal of the American Geriatrics Society (634 papers; 0.7%) and Obesity Surgery (588 papers; 0.7%) published the largest number of papers. 168 countries were involved in the production of papers. The global productivity ranking was headed by the United States (37624 papers), followed by the United Kingdom (7355 papers), Germany (6899 papers) and Canada (5706 papers). Twenty authors who published 100 or more papers were identified; the most prolific authors were affiliated with Harvard Medical School, State University of New York Upstate Medical University, National Taiwan Normal University and China Medical University. The 50 most cited papers (“citation classics” with at least 1000 citations) were published in 20 journals, led by JAMA Psychiatry (11 papers) and JAMA (10 papers). The most cited papers provided contributions focusing on methodological aspects (e.g. Charlson Comorbidity Index, Elixhauser Comorbidity Index, APACHE prognostic system), but also important studies on chronic diseases (e.g. epidemiology of mental disorders and its correlates by the U.S. National Comorbidity Survey, Fried’s frailty phenotype or the management of obesity). Conclusions: Ours is the first analysis of global scientific research in comorbidity and multimorbidity. Scientific production in the field is increasing worldwide with research leadership of Western countries, most notably, the United States. [ABSTRACT FROM AUTHOR]

Objectives: Dentistry is a medical discipline with an increasing scientific production in the last years. Due to the importance of data sharing in science, this study aims at analyzing the availability of raw data in articles from scientific journals indexed in the Dentistry category of the 2014 edition of the Journal Citation Reports. Material and methods: A review of the 88 websites of journals from the Dentistry category was conducted to determine the data-sharing editorial policies. Furthermore, a search in the PubMed Central repository to collect information about the characteristics of the supplementary material of articles from those journals was carried out. Results: The possibility of publishing a supplementary material was higher in the first quartile journals. A percentage of 7.6% of the articles registered in PubMed Central contained a supplementary material, especially text documents, but the presence of spreadsheets was scarce. Conclusions: There is a relationship between openness policies and the impact of the journals according to their quartile or position ranking by the impact factor in the JCR, but the willingness of sharing raw data in spreadsheets format is still limited. Clinical relevance: This study will reveal the resources of raw data which will improve quality of research and clinical practice. [ABSTRACT FROM AUTHOR]

Objective: The present study seeks to extend previous bibliometric studies on eating disorders (EDs) by including a time-dependent analysis of the growth and evolution of multi-author collaborations and their correlation with ED publication trends from 1980 to 2014 (35 years). Methods: Using standardized practices, we searched Web of Science (WoS) Core Collection (WoSCC) (indexes: Science Citation Index-Expanded [SCIE], & Social Science Citation Index [SSCI]) and Scopus (areas: Health Sciences, Life Sciences, & Social Sciences and Humanities) to identify a large sample of articles related to EDs. We then submitted our sample of articles to bibliometric and graph theory analyses to identify co-authorship and social network patterns. Results: We present a large number of detailed findings, including a clear pattern of scientific growth measured as number of publications per five-year period or quinquennium (Q), a tremendous increase in the number of authors attracted by the ED subject, and a very high and steady growth in collaborative work. Conclusions: We inferred that the noted publication growth was likely driven by the noted increase in the number of new authors per Q. Social network analyses suggested that collaborations within ED follow patters of interaction that are similar to well established and recognized disciplines, as indicated by the presence of a “giant cluster”, high cluster density, and the replication of the “small world” phenomenon—the principle that we are all linked by short chains of acquaintances. [ABSTRACT FROM AUTHOR]

No abstract available Copyright © 2012 S. Karger AG, Basel [ABSTRACT FROM AUTHOR]

Background and Objective: Research collaborations in biomedical research have evolved over time. No studies have addressed research collaboration in network meta-analysis (NMA). In this study, we used social network analysis methods to characterize global collaboration patterns of published NMAs over the past decades. Methods: PubMed, EMBASE, Web of Science and the Cochrane Library were searched (at 9th July, 2015) to include systematic reviews incorporating NMA. Two reviewers independently selected studies and cross-checked the standardized data. Data was analyzed using Ucinet 6.0 and SPSS 17.0. NetDraw software was used to draw social networks. Results: 771 NMAs published in 336 journals from 3459 authors and 1258 institutions in 49 countries through the period 1997–2015 were included. More than three-quarters (n = 625; 81.06%) of the NMAs were published in the last 5-years. The BMJ (4.93%), Current Medical Research and Opinion (4.67%) and PLOS One (4.02%) were the journals that published the greatest number of NMAs. The UK and the USA (followed by Canada, China, the Netherlands, Italy and Germany) headed the absolute global productivity ranking in number of NMAs. The top 20 authors and institutions with the highest publication rates were identified. Overall, 43 clusters of authors (four major groups: one with 37 members, one with 12 members, one with 11 members and one with 10 members) and 21 clusters of institutions (two major groups: one with 62 members and one with 20 members) were identified. The most prolific authors were affiliated with academic institutions and private consulting firms. 181 consulting firms and pharmaceutical industries (14.39% of institutions) were involved in 199 NMAs (25.81% of total publications). Although there were increases in international and inter-institution collaborations, the research collaboration by authors, institutions and countries were still weak and most collaboration groups were small sizes. Conclusion: Scientific production on NMA is increasing worldwide with research leadership of Western countries (most notably, the UK, the USA and Canada). More authors, institutions and nations are becoming involved in research collaborations, but frequently with limited international collaborations. [ABSTRACT FROM AUTHOR]

The (2-year) Impact Factor of Thomson-Reuters (IF) has become the fundamental tool for analysing the scientific production of academic researchers in a lot of countries. In this article we show that this index and the ordering criterion obtained by using it are highly unstable in the case of mathematics, to the extent that sometimes no reliability can be assigned to its use. We explain the reasons of this behaviour by the specific properties of the mathematical journals and publications, attending mainly the point of view of the researchers in pure mathematics. Using the Journal Citation Report list of journals as a source of information, we analyse the stability in the position of the mathematical journals--the so-called rank-normalized impact factor--compared with journals in applied physics and microbiology during the period 2002-12. Due to the lack of stability of the position of the journals of mathematics in these lists, we propose a 'cumulative index' that fits better the characteristics of mathematical journals. The computation of this index uses the values of the IF of the journals in previous years, providing in this way a more stable indicator. [ABSTRACT FROM AUTHOR]

The objective was to compare the impact factor to 2 years of self-citations (IF2Y) with impact factor 2 years without self-citations (IF2YWS) and IF2Y with the impact factor to 5 years (IF5Y) as well as IF2YWS with SCImago Journal Rank (SJR) about journals where they were published articles of excellence in smoking by Spanish authors in the period 2008-2012. The search was conducted in the SCI-E and the SSCI-E on November 25, 2013. Were selected documents that had the h index of the strategy global sample (number of articles that have at least that number of citations) to search using the descriptors "smok *" OR "tobac *". A total of 69 articles by Spanish authors were recovered from 55 journals. We found an almost perfect correlation between IF2Y and IF2YWS, reaching IF2Y the highest values. We also found an almost perfect correlation between IF2Y and IF5Y with good agreement, reaching FI5a highest values with a great variability and heterogeneity between journals. The correlation between IF2YWS and SJR is poor with a low concordance. Systematically, the IF2YWS have always higher values than SJR and both indicators measure, therefore, different aspects, not be extrapolated or interchangeable. [ABSTRACT FROM AUTHOR]

Objective. The objective of this study was to investigate the funding received by papers of excellence on smoking at the global level between 2010 and 2014 through the Web of Science, and to find out if funding is associated with greater impact. Method. We searched the Science Citation Index Expanded (SCIE) and the Social Sciences Citation Index (SSCI) through the Web of Science platform on 20 May 2015 (typology consisting of originals and reviews for the period from 2010 to 2014). The search strategy was “smok*” OR “tobac*.” To select the papers of excellence, we picked those that had an h index (i.e., number of articles having at least that many citations) from among the papers in the overall sample generated by the strategy. Results. Of the 193 papers of excellence on smoking that were identified, 158 had received funding from 279 different financing institutions that intervened 522 times. The funding came primarily from government agencies, private foundations, and the pharmaceutical industry. Public funding declined and private funding increased over the years included in the analysis. Receipt of funding was not associated with greater impact at a later date. Conclusions. Most of the papers of excellence on smoking received external funding primarily from government agencies, private foundations, and the pharmaceutical industry. Public funding has decreased, while private funding has increased. Receipt of funding was not associated with greater impact at a later date. [ABSTRACT FROM AUTHOR]

In the scientific journals, being part of the editorial boards, including the journals' members and chief editors, involves holding positions of power and responsibility that affect the running of a journal. Until now, these positions have usually been held by men in most scientific disciplines. In this study, the gender composition in the editorial board members (EBMs) and editor-in-chief (ECs) of the 45 Women's Studies journals classified in the Journal Citation Report (JCR) was analyzed. The following indicators were calculated: the gender distribution of ECs and EBMs by journal, publisher, country, and quartile of the journal in the JCR; the geographical area of the members; and the gender distribution of the authors of papers grouped by journal, and geographical area. The gender distribution of the ECs was 92 % women, while that of the EBMs was 82.2 %. Regarding the articles and reviews published during 2019, a 72.4 % were signed by women. These results display an "inverted truncated pyramid": the higher the level of decision-making positions is, the higher the percentage of women. On the other hand, the results by geographical area shows an Anglo-Saxon and European bias. [ABSTRACT FROM AUTHOR]

Purpose -- The purpose of this paper is to analyze the disciplines and thematic study of scientific production in police training over the period 1988-2012. Design/methodology/approach -- Introduction and homogenization of keywords and assigning of descriptors to documents, thematic categorization of journals and, analysis of indicators of productivity and relationship of descriptors and thematic areas has been the used methodology. Findings -- Totally, 59 different descriptors of a total of 585 assigned to the 182 articles that were published in 95 journals belonging into 20 different subject areas have been identified. The most frequent descriptors are "skills," "management development" and "violence" and the main thematic areas have been "Criminology and Penology" and "Psychology". Totally, 47 relationships between 30 descriptors in more than two works, 35 relationships between 20 thematic areas and, 78 relationships between 43 descriptors and eight subject areas in more than two articles have been identified. Originality/value -- Characterize the disciplines and thematic of study of the articles and journals in the scientific production on police training, as well as to identify the relationships between descriptors, subject areas and among these. [ABSTRACT FROM AUTHOR]

The number of citations a peer-reviewed article receives is often used as a measure of its importance and scientific impact. This paper identifies, describes and categorizes the highly cited papers in addiction research on cannabis, heroin, cocaine and psychostimulants. Highly cited papers were identified in the Web of Science Core Collection database. Several bibliometric indicators were calculated. Social network analysis was applied to draw groups of authors and institutions with the greatest number of collaborations and co-words. The number of citations for the top 100 cited articles ranged from 649 to 4,672. The articles were published in 40 journals. The subject category Substance Abuse included 10 papers. The United States was the most productive country (79 papers), followed by the United Kingdom (9). The main funding institutions were the National Institutes of Health in the United States. The network of collaboration between authors distributes the 352 researchers into 53 groups. The three most cited works address the neural basis of drug craving as an incentive-sensitization theory of addiction, the clinical and research uses of the Addiction Severity Index, and the neurocircuitry of addiction. Scientific literature on addictions is widely dispersed both in multidisciplinary and specific journals of neurology, psychiatry and addictions, with relatively few publications providing most of the citations. An ongoing challenge for this field is the concentration of highly cited papers coming from a select number of countries, with the United States being the research hub of the world, with the highest volume of publications and total citations. [ABSTRACT FROM AUTHOR]

Background: Autism spectrum disorder (ASD) is a complex developmental disorder characterised by impaired social interaction and communication, and restrictive and repetitive behaviour. Previous systematic reviews have traditionally assessed the prevalence of ASD on global or regional context, with very few meta-analyses at the country level. The objective of this study will be to systematically evaluate published and unpublished observational studies that present prevalence and comorbidity of ASD among children, adolescent and adult population in Spain. Methods/design: We designed and registered a study protocol for a systematic review and meta-analysis of descriptive epidemiology data. Observational studies (cohort, cross-sectional) reporting the prevalence of ASD and conducted in a wide range of people (e.g. general population, outpatient and/or school settings) will be included. The primary outcome will be the prevalence of ASD. Secondary outcomes will be the prevalence of any physical or mental comorbidity in association with ASD. No limitations will be imposed on publication status, study conduct period, and language of dissemination. Comprehensive literature searches will be conducted in seven electronic databases (from January 1980 onwards), including PubMed/MEDLINE, EMBASE, Scopus, Web of Science, PsycINFO, IME—Spanish Medical Index and IBECS—Spanish Bibliographic Index of Health Sciences. Grey literature will be identified through searching dissertation databases, Google Scholar and conference abstracts. Two team members will independently screen all citations, full-text articles, and abstract data. Potential conflicts will be resolved through discussion. The study methodological quality (or bias) will be appraised using an appropriate tool. If feasible, we will conduct random effects meta-analysis of observational data. Prevalence estimates will be stratified according to gender, age and geographical location. Additional analyses will be conducted to explore the potential sources of heterogeneity (e.g. methodological quality, sample size, diagnostic criteria). Discussion: This systematic review and meta-analysis of observational data will identify, evaluate and integrate the epidemiological knowledge underlying the prevalence of ASD in Spain. The results of this study will be of interest to multiple audiences including patients, their families, caregivers, healthcare professional, scientists and policy makers. Results will be published in a peer-reviewed journal. Implications for future epidemiological research will be discussed. Systematic review registration: PROSPERO CRD42018090372 [ABSTRACT FROM AUTHOR]

Background: Attention deficit hyperactivity disorder (ADHD) is a childhood-onset disorder characterized by a persistent pattern of symptoms of developmentally inappropriate and impaired inattention and/or hyperactivity/impulsivity, with difficulties often continuing into adulthood. ADHD can come with other comorbid conditions. The aim of this study will be to quantify the prevalence and comorbidity of ADHD among children, adolescent, and adult population in Spain. Methods/design: We designed and registered a study protocol for an update and expansion of a systematic review and meta-analysis of pooled prevalence data. We will include cross-sectional observational studies reporting prevalence of ADHD in Spain and conducted in the general population, outpatient, and/or school settings. The primary outcome will be the prevalence of ADHD. Secondary outcomes will be the prevalence of any physical or mental comorbidity in association with ADHD. No limitations will be imposed on publication status, study conduct period, and language of dissemination. Comprehensive literature searches will be conducted in multiple electronic databases, including PubMed/MEDLINE, EMBASE, Scopus, Web of Science, PsycINFO, IME – Spanish Medical Index, and IBECS – Spanish Bibliographic Index of Health Sciences. We will also search Google Scholar, dissertation databases, and conference abstracts. Two team members will independently screen all citations, full-text articles, and abstract data. Potential conflicts will be resolved through discussion. The methodological quality (or risk of bias) of individual studies will be appraised using an appropriate tool. If feasible, we will conduct random effects meta-analysis. Prevalence estimates will be stratified according to gender, age, and geographical location. Additional analyses will be conducted to explore the potential sources of heterogeneity (e.g., methodological quality, sample size, diagnostic criteria). Discussion: This systematic review and meta-analysis of observational data will provide an updated synthesis of the prevalence and comorbidity of ADHD in Spain. This study will also examine factors that may explain potential variations in prevalence data. The findings of this study will be published in a peer-reviewed journal. Systematic review registration: PROSPERO CRD42018106082. [ABSTRACT FROM AUTHOR]

Purpose The purpose of this study to investigate the evolution and current status of peer-reviewed publications concerning generic drugs during the past few decades. Methods Scientific articles about generic drugs published until 2012 were retrieved through the PubMed/MEDLINE database, and a content analysis was performed. Findings Our study revealed an increasing number of publications on generics since 1984. Statins, antiretroviral therapies, and antiepileptics, followed by immunosuppressants and antithrombotic agents, were the most common therapeutic drug categories. Implications Almost 60% of the generics detailed in studies indexed in MEDLINE were acting on the cardiovascular system as anti-infectives and on the nervous system, which is not surprising considering the leading causes of death and disability worldwide. [ABSTRACT FROM AUTHOR]