A cross-sectional analysis identified co-authorship networks and scientific collaboration on reporting guidelines for health research.

OBJECTIVES: To investigate scientific collaboration and citation metrics of reporting guidelines for health research. STUDY DESIGN AND SETTING: A cross-sectional analysis of published articles of reporting guidelines for health research. A search of the EQUATOR (Enhancing the QUAlity and Transparency Of health Research) Network Library (from inception to January 21, 2021) was supplemented by searching websites of guideline developers. For each article, metadata (e.g., authors, institutions, countries, citations) were extracted from the Web of Science and Scopus (up to October 25, 2021). Descriptive analyses were conducted. Network analyses of collaborations were presented. RESULTS: We included 662 articles published in 332 journals. The BMJ (n = 50 articles; 8%), Annals of Internal Medicine (n = 29; 4%), and Journal of Clinical Epidemiology (n = 24; 4%) published the largest number of articles. Four thousand seven hundred twenty two authors, 1,647 institutions, and 83 countries were involved. The global productivity was led by the United States (n = 456 articles), the United Kingdom (n = 414), and Canada (n = 306). We found eight clusters of authors (e.g., one major group with 337 members) and three clusters of institutions (e.g., one major group with 256 members). The most prolific authors were affiliated with the Ottawa Hospital Research Institute (Canada), the University of Ottawa (Canada), the University of Oxford (the United Kingdom), and Stanford University (the United States). CONCLUSION: Our analysis identified key actors producing reporting guidelines, most intense collaborations, and 'citation classics' in the field. These results could potentially be used to strengthen collaborations for developing and disseminating reporting guidelines for health research.

Financed research from Government Delegation grants for the National Plan on Drugs: Research assessment and scientific impact. / Repercusión científica de las ayudas de la Delegación del Gobierno para el Plan Nacional sobre Drogas: Publicaciones derivadas e impacto científico.

Addictive disorders are a serious health problem to which large amounts of research resources are devoted. This study aims to analyze the evolution and scientific impact of the publications derived from the funding of research projects by the Spanish National Plan on Drugs (PNSD). The list of grants awarded was provided by the PNSD. Derived publications were obtained by asking the principal investigators of the grants and searching in the Web of Science and Scopus. Bibliometric indicators and evolutive trends of scientific production per project were calculated. On average, the PNSD conferred 15 annual grants to research projects, with an annual amount close to one million euros (€944,200.64) and an average amount per grant of just over €60,000, being higher in basic research and in alcohol. 71,9% of the grants had derived publications and almost half of them produced between one and three publications, with basic research being the most prolific. The international journal in which most articles were published was Psychopharmacology (50) and among Spanish journals, Adicciones stood out (28). A high level of co-authorship and international collaboration was identified. Most of the PNSD-funded projects produced research articles, many of them in journals belonging to the first and second quartiles of the Journal Citation Reports. The results of this study have revealed the scientific impact of the PNSD research projects funding and may contribute to determining future funding priorities.

Los trastornos adictivos son un grave problema de salud al que se destinan gran cantidad de recursos de investigación. El propósito de este trabajo es analizar la evolución e impacto científico de las publicaciones derivadas de las ayudas a proyectos de investigación financiados por el Plan Nacional Sobre Drogas (PNSD). La relación de ayudas concedidas fue proporcionada por el PNSD. Las publicaciones derivadas se obtuvieron preguntando a los investigadores principales de las ayudas y buscando en Web of Science y Scopus. Se calcularon indicadores bibliométricos y tendencias evolutivas de la producción científica por proyecto. Por término medio, el PNSD concedió 15 ayudas anuales a proyectos de investigación, con un importe anual cercano al millón de euros (944.200,64€) y un importe medio por ayuda de algo más de 60.000€, siendo mayor en la investigación básica y en alcohol. El 71,9% de las ayudas tuvieron publicaciones derivadas y casi la mitad produjeron entre una y tres publicaciones, siendo la investigación básica la más prolífica. La revista extranjera en la que más artículos se publicaron fue Psychopharmacology (50) y entre las españolas destacó Adicciones (28). Se identificó un alto índice de coautoría y de colaboración internacional. La mayoría de los proyectos financiados por el PNSD produjeron artículos de investigación y muchos de ellos en revistas del primer y segundo cuartil del Journal Citation Reports. Los resultados de este estudio han permitido conocer la repercusión científica de las ayudas a proyectos de investigación del PNSD y puede contribuir a determinar futuras prioridades de financiación.

Repercusión científica de las ayudas de la Delegación del Gobierno para el Plan Nacional sobre Drogas: Publicaciones derivadas e impacto científico / Financed research from Government Delegation grants for the National Plan on Drugs: Research assessment and scientific impact

Los trastornos adictivos son un grave problema de salud al que se destinan gran cantidad de recursos de investigación. El propósito de este trabajo es analizar la evolución e impacto científico de las publicaciones derivadas de las ayudas a proyectos de investigación financiados por el Plan Nacional Sobre Drogas (PNSD). La relación de ayudas concedidas fue proporcionada por el PNSD. Las publicaciones derivadas se obtuvieron preguntando a los investigadores principales de las ayudas y buscando en Web of Science y Scopus. Se calcularon indicadores bibliométricos y tendencias evolutivas de la producción científica por proyecto. Por término medio, el PNSD concedió 15 ayudas anuales a proyectos de investigación, con un importe anual cercano al millón de euros (944.200,64€) y un importe medio por ayuda de algo más de 60.000€, siendo mayor en la investigación básica y en alcohol. El 71,9% de las ayudas tuvieron publicaciones derivadas y casi la mitad produjeron entre una y tres publicaciones, siendo la investigación básica la más prolífica. La revista extranjera en la que más artículos se publicaron fue Psychopharmacology (50) y entre las españolas destacó Adicciones (28). Se identificó un alto índice de coautoría y de colaboración internacional. La mayoría de los proyectos financiados por el PNSD produjeron artículos de investigación y muchos de ellos en revistas del primer y segundo cuartil del Journal Citation Reports. Los resultados de este estudio han permitido conocer la repercusión científica de las ayudas a proyectos de investigación del PNSD y puede contribuir a determinar futuras prioridades de financiación. (AU)

Addictive disorders are a serious health problem to which large amounts of research resources are devoted. This study aims to analyze the evolution and scientific impact of the publications derived from the funding of research projects by the Spanish National Plan on Drugs (PNSD). The list of grants awarded was provided by the PNSD. Derived publications were obtained by asking the principal investigators of the grants and searching in the Web of Science and Scopus. Bibliometric indicators and evolutive trends of scientific production per project were calculated. On average, the PNSD conferred 15 annual grants to research projects, with an annual amount close to one million euros (€944,200.64) and an average amount per grant of just over €60,000, being higher in basic research and in alcohol. 71,9% of the grants had derived publications and almost half of them produced between one and three publications, with basic research being the most prolific. The international journal in which most articles were published was Psychopharmacology (50) and among Spanish journals, Adicciones stood out (28). A high level of co-authorship and international collaboration was identified. Most of the PNSD-funded projects produced research articles, many of them in journals belonging to the first and second quartiles of the Journal Citation Reports. The results of this study have revealed the scientific impact of the PNSD research projects funding and may contribute to determining future funding priorities. (AU)

Global scientific production regarding behavioral addictions: An analysis of the literature from 1995 to 2019.

AIMS: The increase in scientific interest in so-called behavioral addictions has been growing in recent years. For this reason, the aim of our study is to use bibliometric techniques to identify where and with what intensity these behaviors are being studied. METHODS: In October 2020, we conducted a search in the Web of Science Core Collection using a search equation designed to retrieve the articles that combine the general keywords of addiction with specific terms of the 7 groups of behavioral addictions analyzed (gambling; gaming; information and communication related disorders; and the so-called somatic addictions related to sex, shopping, food and sports). Articles published from 1995 to 2019 were included. RESULTS: We found 9199 distinct articles. Gambling was the most studied addiction, but Information and Technology Communication-related disorders (ITC) had the highest growth rate over the span of five five-year periods, followed by gaming and food addiction. In general, there was a growth rate of 130.46% in the research on behavioral addiction issues. By geographical region, the United States was the most productive country regarding all addictions, but Oceania had the highest proportion of publications per million population. There was a clear interest among Asian countries in studying problems related to ITC and gaming problems. CONCLUSIONS: The importance of the seven behavioral addictions analyzed according to their growth rate in scientific research fields over the last 25 years was confirmed in our study. In addition, the differences in interest by geographical region show us that it is important to delve deeper into cultural particularities to better understand this phenomenon.

Mapping the scientific research on radiology departments: Global trends in publication, collaboration and trending topics.

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.

Worldwide production on sleep apnea from 2009-2018. Analysis of the ability to secure funding and international collaboration networks.

BACKGROUND: Obstructive sleep apnea (OSA) is an emerging health problem, but information on scientific production in this subject area is scarce. We aim to evaluate the scientific production on OSA from 2009 to 2018 to illustrate its worldwide distribution, topic areas, and ability to secure funding, as well as to describe international collaboration networks in this field. METHODS: Articles published between 2009 and 2018 were extracted from the Science Citation Index Expanded via Web of Science (WoS) using the search term "obstructive sleep apn*". Publication year, number and country of authors, journal, subject category, key words, funding source and number of citations received were recorded. We also conducted network analyses for key words and international collaboration. RESULTS: 12,666 articles on OSA were located, which had increased from 895 documents in 2009 to 1592 in 2018. The progressive growth in scientific production on OSA had outpaced the growth rate of total WoS production since 2012.50% of the articles declared some type of funding, with a citation index higher than manuscripts that were not funded. The manuscripts were distributed in journals from 135 subject categories of the WoS, and keyword distribution showed a dispersed pattern with a high number of nodes. The international collaboration rate was 18.2%, and the country network showed the United States as the hegemonic node. CONCLUSION: World production on OSA has grown at a higher rate than global production and shows notable thematic dispersion as well as a high ability to secure funding, which increases its impact.

Trends in funding research and international collaboration on greenhouse gas emissions: a bibliometric approach.

The Web of Science Core Collection platform was used to withdraw the papers included in this study. The studied period comprised from inception till 2018. Trends in research, journals of publication, subject areas of research, keywords most frequently used, countries of publication, international collaboration, and trends of funding research were also analyzed. A total of 3902 articles were published, most of them (52.5%) during the five-year period 2014-2018. The area with the highest number of papers was environmental sciences (41%), followed by energy fuels (16.6%) and engineering environmental (15.7%). "Nitrous oxide emissions" was the most frequent word, followed by "Carbon dioxide emissions" and "Methane emissions". Other words that stood out were "Life cycle assessment", "Climate change" and "Environmental impacts". The United States was the country with the highest productivity (27.9%), followed by China (12.8%) and the United Kingdom (9.6%). There was a concentration of research in recent years, as more than 80% of the papers were published in the last 10 years. The journals that published the largest number of publications were devoted mainly to environmental studies (sciences and engineering), sustainable and green science and technology, energy and fuels, economics, and agriculture. Half of the works were published in Europe and the other half between North America and Asia. Two thirds of the works (67%) were financed compared to a third that were not financed. The percentage of funded works has been increasing over the last decade, which is seen as an indication of the importance of GHGE.

The most 100 cited papers in addiction research on cannabis, heroin, cocaine and psychostimulants. A bibliometric cross-sectional analysis.

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.

Tendencies and Challenges in Worldwide Scientific Research on Probiotics.

The central goal of this study was to analyze scientific trends in the research on probiotics, including the number of papers, funding, country collaborations, and most cited publications. The study makes use of bibliometric and social network analysis of papers included in the Science Citation Index Expanded from the Web of Science database. A total of 7221 papers were retrieved, from which 64% were funded papers. Papers were published in journals covering several areas, such as Food Science & Technology, Microbiology, Biotechnology and Applied Microbiology, Nutrition & Dietetics and Agriculture, and Dairy & Animal Science. Coword analysis shows the relationships between microorganisms, diseases, physiological phenomena, and other key words related to food, population, or type of study. The USA appeared as the world leader in the number of articles produced (n = 919), followed by China (n = 689), India (n = 633), and Brazil (n = 506). The most cited papers related to the consensus on the scope and appropriate use of the term probiotic, its effects on the prevention and treatment of some intestinal diseases, its effects on the suppression of immune disorders, the role of probiotics and prebiotics in obesity, the assessment of psychotropic-like properties, and the application for type 2 diabetes.

Trends in scientific research in Insights into Imaging: a bibliometric review.

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'.

Bibliometric and academic network analysis of Spanish theses on drug dependence in the TESEO database. / Análisis de redes sociales y bibliométrico de las tesis españolas sobre drogodependencias en la base de datos TESEO.

The present study aims to reveal the structure of positions in the field of addiction through the analysis of doctoral theses read in Spain. The source consulted for the selection of the theses was TESEO. Searching for the keywords drug abuse, alcoholism, drug effects and drug addiction treatment during the period 1976-2017 produced 728 theses. The most productive period is 2013-2017, with 208 (28.6%) doctoral theses. The overall rate of publication is increasing, but in the period 2003-2007 output decreased significantly to 5.2% of the total. The university contributing the most theses is the University of Valencia. The academic who has supervised the most theses is Alfonso Velasco Martín, and Emilio Ambrosio Flores is the researcher who has participated most on examining committees. The analysis of the participants in the doctoral thesis process shows a gradual increase of women in authorship, in thesis supervision and as examiners. In terms of subject, the most frequently treated aspects are those related to psychology, pharmacology and medical sciences.The analysis of doctoral theses on substance abuse provides an overview of the structure and the most influential participants in this area. Increasing public concern and the creation of specific groups and research units are reflected in the growth of scientific output.

El presente trabajo tiene por objeto desvelar la estructura de posiciones del campo de las adicciones a partir del análisis de las tesis doctorales defendidas en España. La fuente consultada para la selección de las tesis fue TESEO. La búsqueda se limitó al período 1976-2017 y se utilizaron los descriptores abuso de drogas, alcoholismo, efecto de las drogas y tratamiento de la drogadicción. Se obtuvieron 728 tesis, siendo el quinquenio más productivo el 2013-2017 con 208 (28,6%) tesis doctorales. La evolución de las publicaciones es ascendente, excepto en el quinquenio 2003-2007 en el que la producción baja a un 5,2% del total. La universidad que aporta más tesis es la Universitat de València. El académico que más tesis ha dirigido es Alfonso Velasco Martín y Emilio Ambrosio Flores es el investigador que más ha participado en los tribunales. El análisis de los actores participantes en las tesis doctorales muestra un incremento de presencia de las mujeres como autoras, directoras de tesis y miembros de tribunales. En relación a la temática, los temas más abordados han sido los relacionados con la psicología, la farmacología y las ciencias médicas.El análisis de las tesis doctorales sobre drogodependencias ha dado una visión de su estructura y de las personas más influyentes de la misma. El aumento de la preocupación social en esta área y la creación de grupos y unidades de investigación específicos ha ocasionado un incremento de la producción científica.

Características del lenguaje médico actual en los artículos científicos / Characteristics of current medical language in the scientific articles

El lenguaje médico es un lenguaje científico y técnico y, por lo tanto, debe sustentarse en 4 pilares básicos: la precisión, la corrección, la claridad y la concisión. En este trabajo se describen algunos de los problemas y defectos más habituales del lenguaje médico, entre ellos el abuso de abreviaciones (abreviaturas, siglas y acrónimos), la invasión de extranjerismos innecesarios, la utilización de títulos efectistas en los artículos y el abuso de las mayúsculas y del gerundio. También se exponen consideraciones en torno al lenguaje médico sexista. Para hacer frente a estos problemas se puede hacer uso de armas eficaces, como la consulta a diccionarios críticos de dudas y de dificultades de la lengua española, los manuales de redacción y estilo, las listas de palabras de traducción engañosa y la lectura de textos de calidad

Medical language is a scientific and technical language and, therefore, must be based on four pillars: accuracy, correctness, clarity and conciseness. In this paper some of the most common problems and defects of medical language, are described, including the abuse of abbreviations and acronyms, the invasion of unnecessary foreign words, the use of gimmicky titles in articles and abuse of gerund and capital letters. It also outlines considerations about the medical sexist language. To address these problems, the author of biomedical texts has effective weapons such as: critical dictionaries of doubts; dictionaries of the difficulties of the Spanish language; writing and style manuals; word lists of misleading translation; and reading quality texts

Subsequent full publication of abstracts presented in the annual meetings of the Spanish Society of Cardiology.

INTRODUCTION AND OBJECTIVES: The Spanish Society of Cardiology holds an annual national meeting with a large number of presentations but the number of full-text publications resulting from these presentations and the journals accepting these manuscripts is unknown. This study aimed to identify the full-text publication rate of accepted abstracts and to analyze the bibliometric features of subsequent publications. METHODS: We randomly selected a sample of 300 oral presentations at the meetings of the Spanish Society of Cardiology in 2002, 2005 and 2008. Subsequent publications were identified through the Science Citation Index-Expanded, Scopus, Índice Médico Español, and Índice Bibliográfico Español en Ciencias de la Salud. RESULTS: Of 300 abstracts, 115 resulted in 147 full publications, representing a publication rate of 38.33%. The meeting with the highest publication rate (43%) was held in 2005. The subject category with the highest number of publications was Pediatric Cardiology/Congenital Heart Disease (58.8%). Time to full publication was usually 2 years (30.61%). Articles were published in 57 journals. The journals publishing the highest number of articles were Revista Española de Cardiología (n=55; 37.41%) and the European Heart Journal (n=8; 5.44%). CONCLUSIONS: The high percentage of articles published in the upper half of journals listed in Journal Citation Reports under the category of cardiac and cardiovascular system (83%) can be taken as an objective quality indicator of the results presented at these meetings. However, more than 60% of the abstracts did not result in full publications, thus depriving the scientific community of potentially interesting results.

Publicaciones derivadas de las comunicaciones a los congresos anuales de la Sociedad Española de Cardiología / Subsequent Full Publication of Abstracts Presented in the Annual Meetings of the Spanish Society of Cardiology

Introducción y objetivos. La Sociedad Española de Cardiología celebra anualmente un congreso nacional en el que se presentan numerosas comunicaciones. Sin embargo, se desconoce si posteriormente se publican como artículos y en qué revistas. Nuestro objetivo es identificar el grado de publicación de estas comunicaciones y analizar sus características bibliométricas. Métodos. Se seleccionó aleatoriamente una muestra de 300 comunicaciones presentadas de forma oral durante los congresos de 2002, 2005 y 2008. La identificación de los trabajos publicados se realizó mediante búsqueda en las bases de datos Science Citation Index-Expanded, Scopus, Índice Médico Español e Índice Bibliográfico Español en Ciencias de la Salud. Resultados. De las 300 comunicaciones, 115 derivaron en 147 artículos publicados (el 38,33% de publicación). El congreso que obtuvo un mayor índice de publicaciones fue el de 2005 (43%). El mayor número correspondió al área de cardiología pediátrica/cardiopatías congénitas (58,8%). El mayor porcentaje de trabajos se publicó a los 2 años de la celebración del congreso (30,61%). Los artículos se han publicado en 57 revistas, de las que han pblicado el mayor número de artículos Revista Española de Cardiología (n = 55; 37,41%) y European Heart Journal (n = 8; 5,44%). Conclusiones. El alto porcentaje de artículos publicados en revistas de la mitad superior de la categoría Cardiac and Cardiovascular System del Journal Citation Reports (83%) se puede considerar un indicador objetivo de la calidad de las comunicaciones presentadas en estos congresos. Que más de un 60% de las comunicaciones no se publique priva a la comunidad científica de unos resultados potencialmente interesantes (AU)

Introduction and objectives. The Spanish Society of Cardiology holds an annual national meeting with a large number of presentations but the number of full-text publications resulting from these presentations and the journals accepting these manuscripts is unknown. This study aimed to identify the full-text publication rate of accepted abstracts and to analyze the bibliometric features of subsequent publications. Methods. We randomly selected a sample of 300 oral presentations at the meetings of the Spanish Society of Cardiology in 2002, 2005 and 2008. Subsequent publications were identified through the Science Citation Index-Expanded, Scopus, Índice Médico Español, and Índice Bibliográfico Español en Ciencias de la Salud. Results. Of 300 abstracts, 115 resulted in 147 full publications, representing a publication rate of 38.33%. The meeting with the highest publication rate (43%) was held in 2005. The subject category with the highest number of publications was Pediatric Cardiology/Congenital Heart Disease (58.8%). Time to full publication was usually 2 years (30.61%). Articles were published in 57 journals. The journals publishing the highest number of articles were Revista Española de Cardiología (n=55; 37.41%) and the European Heart Journal (n=8; 5.44%). Conclusions. The high percentage of articles published in the upper half of journals listed in Journal Citation Reports under the category of cardiac and cardiovascular system (83%) can be taken as an objective quality indicator of the results presented at these meetings. However, more than 60% of the abstracts did not result in full publications, thus depriving the scientific community of potentially interesting results (AU)

Coautoría y redes de colaboración en la investigación española sobre esclerosis múltiple (1996-2010) / Co-authorship and collaboration networks in Spanish research into multiple sclerosis (1996-2010)

Introducción. La colaboración científica es fundamental para el avance del conocimiento y es especialmente importante en ciencias de la salud. El objetivo de este trabajo es identificar los indicadores de colaboración científica y las redes de coautoría de los investigadores e instituciones españolas que publican sobre esclerosis múltiple (EM) durante el período 1996-2010. Materiales y métodos. Los trabajos objeto de estudio se han obtenido de las bases de datos internacionales Web of Science y Scopus, y nacionales IME e IBECS, aplicando perfiles de búsqueda específicos en cada una de ellas. Se cuantificaron todos los trabajos firmados en coautoría y se obtuvieron como medidas del análisis estructural el grado, índice de intermediación e índice de cercanía. Resultados. Durante el período 1996-2010 se publicaron 1.613 artículos, de los que el 92% se realizó en colaboración. Aplicando un umbral de 10 o más trabajos firmados en colaboración, se han identificado 20 grupos de investigación españoles en EM. La mayor parte de los trabajos (64,23%) se ha publicado en colaboración entre instituciones españolas, y el 33,85%, en colaboración con extranjeras. El análisis de la participación institucional ha permitido identificar un gran núcleo o red de relaciones de colaboración institucional que integra 27 instituciones, en la que ocupa un lugar central el Hospital Vall d’Hebron. La colaboración internacional está encabezada por Estados Unidos y países europeos como Reino Unido e Italia. Conclusión. A pesar de la bonanza de los indicadores de colaboración que los caracterizan, es necesario potenciar la colaboración entre autores, instituciones y grupos de trabajo, ya que ésta se relaciona positivamente con la calidad e impacto de la investigación y de las publicaciones medidos a través de las citas (AU)

Introduction. Scientific collaboration is vital for to the advance of knowledge and is especially important in health sciences. The aim of this study is to identify scientific collaboration indicators and co-authorship networks of researchers and Spanish institutions that publish on multiple sclerosis (MS) during the period 1996-2010. Materials and methods. The analyzed papers were obtained from Web of Science and Scopus international databases, and IBECS and IME national databases, applying specific search profiles in each one of them. In order to identify collaboration networks all signed papers were quantified and co-authored measures were obtained, as the different indexes, degree, intermediation and closeness. Results. 1,613 articles were published in the period 1996-2010, 92% of them in collaboration. With 10 or more works signed in collaboration, 20 Spanish research groups in MS were identified. 64.23% of the papers were published in collaboration between Spanish institutions, and 33.85% were in collaboration with foreign institutions. The institutional participation analysis has identified a large network of institutional partnerships that integrates 27 institutions, with the Hospital Vall d’Hebron in a central position. International collaboration is headed by the U.S. and European countries, most notably the UK and Italy. Conclusion. The most collaborative authors, institutions, and work groups in Spanish research in MS have been identified. Despite these indicators that characterize the collaboration in this area, it is necessary to enhance cooperation between them, since this collaboration is positively related to the quality and impact of research and publications (AU)

[Productivity and impact of Spanish research into multiple sclerosis (1996-2010)]. / Productividad e impacto de la investigacion espanola sobre esclerosis multiple (1996-2010).

AIMS: To quantify by means of bibliometric indicators the scientific productivity of Spanish researchers and institutions that publish on multiple sclerosis in national and international journals during the period 1996-2010, and to determine their impact. MATERIALS AND METHODS: Papers under study were obtained from Web of Science and Scopus international databases, as well as IBECS and IME national databases, applying specific search profiles in each. RESULTS: 1613 articles were published in 460 journals, of which 71 were Spanish and 389 non Spanish, being the most productive Revista de Neurologia (n = 204), Multiple Sclerosis (n = 102) and Neurology (n = 97). The articles have been published mostly in English (71.92%) and Spanish (27.40%), participating 4728 authors from 1224 different institutions. The 67.08% of the papers have been cited at least once, but 32.92% have not received citations. The mean number of citations per paper was 12.47 ± 28.42. The most cited journals have been Neurology (n = 1821), followed by Multiple Sclerosis (n = 1124) and Journal of Neuroimmunology (n = 890). CONCLUSIONS: The number of papers has increased steadily from 1996 to 2010, confirming the consolidation and growth of Spanish research in multiple sclerosis, whose results are published in a Revista de Neurologia and Multiple Sclerosis. We emphasize the growing internationalization of the Spanish research on the disease, but it is worrying that a third of the papers has not been cited.

Productividad e impacto de la investigación española sobre esclerosis múltiple (1996-2010) / Productivity and impact of Spanish research into multiple sclerosis (1996-2010)

Aims. To quantify by means of bibliometric indicators the scientific productivity of Spanish researchers and institutions that publish on multiple sclerosis in national and international journals during the period 1996-2010, and to determine their impact. Materials and methods. Papers under study were obtained from Web of Science and Scopus international databases, as well as IBECS and IME national databases, applying specific search profiles in each. Results. 1613 articles were published in 460 journals, of which 71 were Spanish and 389 non Spanish, being the most productive Revista de Neurología (n = 204), Multiple Sclerosis (n = 102) and Neurology (n = 97). The articles have been published mostly in English (71.92%) and Spanish (27.40%), participating 4728 authors from 1224 different institutions. The 67.08% of the papers have been cited at least once, but 32.92% have not received citations. The mean number of citations per paper was 12.47 ± 28.42. The most cited journals have been Neurology (n = 1821), followed by Multiple clerosis (n = 1124) and Journal of Neuroimmunology (n = 890). Conclusions. The number of papers has increased steadily from 1996 to 2010, confirming the consolidation and growth of Spanish research in multiple sclerosis, whose results are published in a Revista de Neurología and Multiple Sclerosis. We emphasize the growing internationalization of the Spanish research on the disease, but it is worrying that a third of the papers has not been cited (AU)

Objetivos. Cuantificar mediante indicadores bibliométricos la productividad científica de los investigadores e instituciones españolas que publican sobre esclerosis múltiple en revistas nacionales y extranjeras, durante el período 1996-2010, y determinar su repercusión o impacto. Materiales y métodos. Los trabajos objeto de estudio se han obtenido de las bases de datos internacionales Web of Science y Scopus, y nacionales IME e IBECS, aplicando perfiles de búsqueda específicos en cada una de ellas. Resultados. Se publicaron 1.613 artículos en 460 revistas, de las que 71 eran españolas y 389 extranjeras, siendo las más productivas Revista de Neurología (n = 204), Multiple Sclerosis (n = 102) y Neurología (n = 97). Los artículos se publicaron mayoritariamente en inglés (71,92%) y en español (27,40%), y participaron 4.728 autores diferentes procedentes de 1.224 instituciones. El 67,08% de los trabajos se ha citado al menos una vez y el 32,92% no ha recibido citas. La media del número de citas recibidas por documento ha sido de 12,47 ± 28,42. Las revistas más citadas han sido Neurology (n = 1.821), seguida de Multiple Sclerosis (n = 1.124) y Journal of Neuroimmunology (n = 890). Conclusiones. El número de artículos ha aumentado progresivamente desde 1996 hasta 2010, lo que confirma la consolidación y crecimiento de la investigación española en esclerosis múltiple, cuyos resultados se publican en una amplia serie de revistas españolas y extranjeras, entre las que destaca Revista de Neurología y Multiple Sclerosis. Se confirma la creciente internacionalización de la investigación española sobre la enfermedad, si bien es preocupante que una tercera parte de los trabajos no se haya citado (AU)

Scientific publications and research groups on alcohol consumption and related problems worldwide: authorship analysis of papers indexed in PubMed and Scopus databases (2005 to 2009).

BACKGROUND: The research of alcohol consumption-related problems is a multidisciplinary field. The aim of this study is to analyze the worldwide scientific production in the area of alcohol-drinking and alcohol-related problems from 2005 to 2009. METHODS: A MEDLINE and Scopus search on alcohol (alcohol-drinking and alcohol-related problems) published from 2005 to 2009 was carried out. Using bibliometric indicators, the distribution of the publications was determined within the journals that publish said articles, specialty of the journal (broad subject terms), article type, language of the publication, and country where the journal is published. Also, authorship characteristics were assessed (collaboration index and number of authors who have published more than 9 documents). The existing research groups were also determined. RESULTS: About 24,100 documents on alcohol, published in 3,862 journals, and authored by 69,640 authors were retrieved from MEDLINE and Scopus between the years 2005 and 2009. The collaboration index of the articles was 4.83 ± 3.7. The number of consolidated research groups in the field was identified as 383, with 1,933 authors. Documents on alcohol were published mainly in journals covering the field of "Substance-Related Disorders," 23.18%, followed by "Medicine," 8.7%, "Psychiatry," 6.17%, and "Gastroenterology," 5.25%. CONCLUSIONS: Research on alcohol is a consolidated field, with an average of 4,820 documents published each year between 2005 and 2009 in MEDLINE and Scopus. Alcohol-related publications have a marked multidisciplinary nature. Collaboration was common among alcohol researchers. There is an underrepresentation of alcohol-related publications in languages other than English and from developing countries, in MEDLINE and Scopus databases.

Evolución y repercusión científica de las becas de investigación de la Sociedad Española de Cardiología y la Fundación Española del Corazón (2000-2006) / Evolution and scientific impact of research grants from the spanish Society of Cardiology and Spanish Heart Foundation (2000-2006)

Introducción y objetivos. La Sociedad Española de Cardiología convoca anualmente becas para financiar proyectos de investigación en el campo de las enfermedades cardiovasculares. Nuestro objetivo es identificar la repercusión de estas inversiones durante el periodo 2000-2006 a partir de los artículos derivados de las becas y publicados en revistas científicas. Métodos. Utilizando los datos de identificación de cada proyecto como términos de búsqueda, se recuperaron todos los artículos derivados de estas becas en las bases de datos del Índice Médico Español, el Índice Bibliográfico Español en Ciencias de la Salud, el Science Citation Index-Expanded y Scopus. Los artículos se sometieron a un análisis estadístico descriptivo en relación con la tipología de las becas, la evolución anual de su número y de su importe, el sexo y las instituciones de los becados. Resultados. Se concedieron 207 becas con un importe total de 3.270.877 € y una dotación media anual de 467.268 €. De ellas, 123 (59,42%) aportaron publicaciones derivadas. El promedio de artículos publicados por beca concedida ha sido de 1,12, y de 1,9 si se tiene en cuenta únicamente las becas que dieron lugar a publicaciones. Conclusiones. Durante el periodo 2000-2006, la Sociedad Española de Cardiología/Fundación Española del Corazón destinó casi 500.000 € anuales a financiar becas de investigación y así contribuir a luchar contra las enfermedades cardiovasculares. Casi el 60% de las becas han aportado publicaciones derivadas, 231 artículos. El 73% de los artículos se publicaron en revistas extranjeras y el 91,34%, en revistas españolas o extranjeras con factor de impacto en el Journal Citation Report (AU)

Introduction and objectives. The Sociedad Española de Cardiología (Spanish Society of Cardiology) every year awards grants to finance research in the field of cardiovascular diseases. The aim of this study is to identify the impact of these investments during the period 2000-2006 from the subsequently published articles in scientific journals. Methods. Using the identifying data of each project as search terms, all articles that resulted from these grants were located in the Spanish Índice Médico Español and Índice Bibliográfico Español en Ciencias de la Salud databases, and in Science Citation Index-Expanded and Scopus. Descriptive statistical analysis of these articles included type of grant, number and amount awarded per year, and the recipient's sex and institutional affiliation. Results. The Sociedad Española de Cardiología awarded €3 270 877 to 207 recipients, an average annual total of €467 268, We identified 231 publications that resulted from 123 (59.42%) of these grants. The average number of articles per grant awarded was 1.12, and 1.9 when taking into account only the awards that led to publication. Conclusions. During the period 2000 to 2006, the Sociedad Española de Cardiología/ Fundación Española del Corazón (Spanish Heart Foundation) provided about €500 000 per year to fund research grants, thereby contributing to the fight against cardiovascular diseases. Almost 60% of grants have led to publications, 73% of which were published in international journals, and 91.34% in national or international journals with an impact factor in the Journal Citation Reports (AU)

[Evolution and scientific impact of research grants from the spanish society of cardiology and spanish heart foundation (2000-2006)]. / Evolución y repercusión científica de las becas de investigación de la Sociedad Española de Cardiología y la Fundación Española del Corazón (2000-2006).

INTRODUCTION AND OBJECTIVES: The Sociedad Española de Cardiología (Spanish Society of Cardiology) every year awards grants to finance research in the field of cardiovascular diseases. The aim of this study is to identify the impact of these investments during the period 2000-2006 from the subsequently published articles in scientific journals. METHODS: Using the identifying data of each project as search terms, all articles that resulted from these grants were located in the Spanish Índice Médico Español and Índice Bibliográfico Español en Ciencias de la Salud databases, and in Science Citation Index-Expanded and Scopus. Descriptive statistical analysis of these articles included type of grant, number and amount awarded per year, and the recipient's sex and institutional affiliation. RESULTS: The Sociedad Española de Cardiología awarded €3,270,877 to 207 recipients, an average annual total of €467,268. We identified 231 publications that resulted from 123 (59.42%) of these grants. The average number of articles per grant awarded was 1.12, and 1.9 when taking into account only the awards that led to publication. CONCLUSIONS: During the period 2000 to 2006, the Sociedad Española de Cardiología/ Fundación Española del Corazón (Spanish Heart Foundation) provided about €500,000 per year to fund research grants, thereby contributing to the fight against cardiovascular diseases. Almost 60% of grants have led to publications, 73% of which were published in international journals, and 91.34% in national or international journals with an impact factor in the Journal Citation Reports.