High-impact and transformative science (HITS) metrics: Definition, exemplification, and comparison.

Countries, research institutions, and scholars are interested in identifying and promoting high-impact and transformative scientific research. This paper presents a novel set of text- and citation-based metrics that can be used to identify high-impact and transformative works. The 11 metrics can be grouped into seven types: Radical-Generative, Radical-Destructive, Risky, Multidisciplinary, Wide Impact, Growing Impact, and Impact (overall). The metrics are exemplified, validated, and compared using a set of 10,778,696 MEDLINE articles matched to the Science Citation Index ExpandedTM. Articles are grouped into six 5-year periods (spanning 1983-2012) using publication year and into 6,159 fields constructed using comparable MeSH terms, with which each article is tagged. The analysis is conducted at the level of a field-period pair, of which 15,051 have articles and are used in this study. A factor analysis shows that transformativeness and impact are positively related (ρ = .402), but represent distinct phenomena. Looking at the subcomponents of transformativeness, there is no evidence that transformative work is adopted slowly or that the generation of important new concepts coincides with the obsolescence of existing concepts. We also find that the generation of important new concepts and highly cited work is more risky. Finally, supporting the validity of our metrics, we show that work that draws on a wider range of research fields is used more widely.

Influencia de los distintos tipos de artículo en el factor de impacto de las revistas dermatológicas / Influence of Article Type on the Impact Factor of Dermatology Journals

INTRODUCCIÓN Y OBJETIVOS: Para las revistas científicas el factor de impacto (FI) se ha convertido en un objetivo en sí mismo. El objetivo de nuestro estudio es describir la influencia de los distintos tipos de artículo en el FI de las revistas dermatológicas. MATERIAL Y MÉTODOS: Empleando la base de datos Scopus hemos reproducido los cálculos del FI de 2015 de Actas Dermo-Sifiliográficas y las principales revistas dermatológicas. Hemos eliminado artículos sin resumen, cartas al editor y actas de congresos. Los artículos incluidos se clasificaron en casos clínicos, artículos originales, revisiones narrativas y "otros". Calculamos el FI medio para cada tipo de artículo. Los datos obtenidos son comparados con los proporcionados por el Institute for Scientific Information. RESULTADOS: Las revistas tienen distribuciones diferentes en cuanto a tipos de artículos predominantes. Los originales son los artículos que más se publican en las revistas analizadas (BJD: 76,8%, Contact: 81,1%, JAAD: 63,4%, JAMA Dermatol: 63,7%), a excepción de Actas, en la que corresponden el 31,7% de los artículos publicados. Los tipos de artículo que se asocian con un FI medio menor al global son los casos clínicos y otros, mientras que revisiones y originales tienen un mayor FI. CONCLUSIONES: Los casos clínicos, al ser menos citados, disminuyen el FI medio de la revista. Revisiones y originales aumentan el FI. Las revistas centradas en mejorar el FI podrían publicar menos casos y más revisiones y originales. Los comités editoriales deben mantener un equilibrio entre la necesidad de aumentar su FI y el interés de los lectores clínicos

BACKGROUND AND OBJECTIVE: For scientific journals, achieving a high impact factor (IF) has become a goal in its own right. Our aim was to describe the influence of article type on the IF of dermatology journals. MATERIAL AND METHODS: We used the Scopus database to calculate an IF for Actas Dermo-Sifiliográficas and the major dermatology journals, excluding articles without abstracts, letters to the editor, and conference proceedings. Included articles were classified into 4 categories: case reports, original articles, narrative reviews, and other. We also calculated the mean IF for each article type. We then compared our results with IFs published by the Institute for Scientific Information. RESULTS: The proportion of each type of article differed between journals. Original articles carried the greatest weight in the major journals (BJD, 76.8%; Contact, 81.1%; JAAD, 63.4%; JAMA Dermatol, 63.7%.) but not in Actas Dermo-Sifiliográficas, where only 31.7% were original research articles. A higher IF was associated with the publication of reviews and original articles; a lower IF was associated with the publication of case reports and other article types. CONCLUSIONS: Publishing case reports, which have lower citation rates, leads to a lower IF. Publishing reviews and original articles will lead to a higher IF. Journals that seek a higher IF should probably publish more reviews and original articles and fewer case reports. Editorial boards should seek a balance between the interests of their clinician readers and the journal's need for a higher IF

Influence of Article Type on the Impact Factor of Dermatology Journals. / Influencia de los distintos tipos de artículo en el factor de impacto de las revistas dermatológicas.

BACKGROUND AND OBJECTIVE: For scientific journals, achieving a high impact factor (IF) has become a goal in its own right. Our aim was to describe the influence of article type on the IF of dermatology journals. MATERIAL AND METHODS: We used the Scopus database to calculate an IF for Actas Dermo-Sifiliográficas and the major dermatology journals, excluding articles without abstracts, letters to the editor, and conference proceedings. Included articles were classified into 4 categories: case reports, original articles, narrative reviews, and other. We also calculated the mean IF for each article type. We then compared our results with IFs published by the Institute for Scientific Information. RESULTS: The proportion of each type of article differed between journals. Original articles carried the greatest weight in the major journals (BJD, 76.8%; Contact, 81.1%; JAAD, 63.4%; JAMA Dermatol, 63.7%.) but not in Actas Dermo-Sifiliográficas, where only 31.7% were original research articles. A higher IF was associated with the publication of reviews and original articles; a lower IF was associated with the publication of case reports and other article types. CONCLUSIONS: Publishing case reports, which have lower citation rates, leads to a lower IF. Publishing reviews and original articles will lead to a higher IF. Journals that seek a higher IF should probably publish more reviews and original articles and fewer case reports. Editorial boards should seek a balance between the interests of their clinician readers and the journal's need for a higher IF.

A comprehensive categorical and bibliometric analysis of published research articles on pediatric pain from 1975 to 2010.

The field of pediatric pain research began in the mid-1970s and has undergone significant growth and development in recent years as evidenced by the variety of books, conferences, and journals on the topic and also the number of disciplines engaged in work in this area. Using categorical and bibliometric meta-trend analysis, this study offers a synthesis of research on pediatric pain published between 1975 and 2010 in peer-reviewed journals. Abstracts from 4256 articles, retrieved from Web of Science, were coded across 4 categories: article type, article topic, type and age of participants, and pain stimulus. The affiliation of the first author and number of citations were also gathered. The results suggest a significant increase in the number of publications over the time period investigated, with 96% of the included articles published since 1990 and most research being multiauthored publications in pain-focused journals. First authors were most often from the United States and affiliated with a medical department. Most studies were original research articles; the most frequent topics were pain characterization (39.86%), pain intervention (37.49%), and pain assessment (25.00%). Clinical samples were most frequent, with participants most often characterized as children (6-12 years) or adolescents (13-18 years) experiencing chronic or acute pain. The findings provide a comprehensive overview of contributions in the field of pediatric pain research over 35 years and offers recommendations for future research in the area.

Pagar por publicar en revistas científicas / No disponible

No disponible

El espacio de los editores: anuario de Anales de Pediatría / Editors' Corner: anales de Pediatria Annual Report

No disponible

Celebrating the Latest Release of the Journal Impact Factors: Thinking Globally, Acting Locally

No abstract available.

A review of oral and maxillofacial surgery journals' contribution to undergraduate surgical education.

We searched the Medline database of 4 leading international journals of oral and maxillofacial surgery (OMFS) for all articles containing the terms "undergraduate", "medical student", or "dental student" in the abstract, title, or keywords, from the earliest paper to 2013, to identify and review publications that related to the education of undergraduate medical and dental students. We found 130 articles, of which 22 (17%) met the inclusion criteria. Most were published by teams based in the United States, followed by those from the United Kingdom and Germany. The earliest was published in 1986. Since then, most have been published in the Journal of Oral and Maxillofacial Surgery (0.33/year) and the least in the International Journal of Oral and Maxillofacial Surgery (0.11/year). Eleven original research articles concerned dental students and 4 concerned medical students. Three studies looked at both groups and compared them with their qualified counterparts. There is a relative paucity of articles relating to the education of undergraduates, particularly medical students, in OMFS journals, although the number has increased over the last decade. There is a need for more educational papers to be aimed at students interested in pursuing OMFS as a career.

Intracranial imaging of uncommon diseases is more frequently reported in clinical publications than in radiology publications.

BACKGROUND AND PURPOSE: Descriptions of uncommon diseases with intracranial imaging abnormalities are often difficult to find in the radiology literature. We hypothesized that reported imaging findings of such conditions in the recent literature were more frequent in clinical compared with radiology journals. MATERIALS AND METHODS: PubMed searches from December 1, 2007 to December 1, 2012 were performed for 5 uncommon CNS diseases with intracranial imaging manifestations: 1) Susac syndrome; 2) amyloid ß-related angiitis; 3) Parry-Romberg syndrome/en coup de sabre; 4) transient lesion of the splenium of the corpus callosum; and 5) reversible cerebral vasoconstriction syndrome. Articles were classified as a case report, case series, or original research. Journals were categorized as radiology or clinical. The 1- and 5-year Impact Factors of the journals were recorded. RESULTS: Two hundred two articles were identified for the 5 diseases, including 151 (74%) case reports, 26 case series (13%), and 25 original research articles (13%); 179 (89%) were published in nonradiology journals, compared with 23 (11%) in radiology journals. There was no significant difference between the mean 1- and 5-year Impact Factors of the radiology and clinical journals. CONCLUSIONS: Recent reports of the selected uncommon diseases with intracranial manifestations are more frequent in clinical journals when compared with dedicated radiology publications. Most publications are case reports. Radiologists should review both radiology and clinical journals when reviewing imaging features of uncommon diseases affecting the brain. Lack of reporting on such disease in the radiology literature may have significant practice, educational, and research implications for the radiology community.

Avaliação dos artigos de pneumologia publicados em periódicos Brasileiros além do Jornal Brasileiro de Pneumologia / Evaluation of articles on pulmonology published in Brazilian journals other than the Brazilian Journal of Pulmonology

A pesquisa em pneumologia no Brasil tem apresentado progressivo destaque nos últimos anos e, além do Jornal Brasileiro de Pneumologia, outros periódicos têm contribuído com a publicação de manuscritos relevantes nessa área. Esse artigo teve por objetivo descrever resumidamente os principais trabalhos publicados no biênio 2009-2010 em pneumologia em outros importantes periódicos nacionais. Foram publicados 56 artigos das diferentes subáreas das doenças respiratórias.

In Brazil, research on pulmonology has become increasingly more visible in recent years. In addition to the Brazilian Journal of Pulmonology, other journals have contributed to that by publishing relevant articles in this area. The objective of this article was to briefly report the most relevant studies on pulmonology that were published in other important Brazilian journals between 2009 and 2010. Altogether, there were 56 articles related to the various subareas that compose the field of respiratory diseases.

Representation of less-developed countries in Pharmacology journals: an online survey of corresponding authors.

BACKGROUND: Scientists from less-developed countries (LDC) perceive that it is difficult to publish in international journals from their countries. This online survey was conducted with the primary aim of determining the opinion of corresponding authors of published papers in international Pharmacology journals regarding the difficulties in publications and their possible solutions. METHODS: The titles of all Pharmacology journals were retrieved from Pubmed. 131 journals were included in study. The latest issue of all journals was reviewed thoroughly. An online survey was conducted from the corresponding authors of the published papers who belonged to LDC. RESULTS: 584 out 1919 papers (30.4%) originated from the LDC. 332 responses (response rate; 64.5%) were received from the authors. Approximately 50% the papers from LDC were published in journals with impact factor of less than 2. A weak negative correlation (r = -0.236) was observed between journal impact factor and the percentage of publications emanating from LDC. A significant majority of the corresponding authors (n = 254; 76.5%) perceived that it is difficult to publish in good quality journals from their countries. According to their opinion, biased attitude of editors and reviewers (64.8%) is the most important reason followed by the poor writing skills of the scientists from LDC (52.8%). The authors thought that well-written manuscript (76.1%), improvement in the quality of research (69.9%) and multidisciplinary research (42.9%) are important determinants that may improve the chances of publications. CONCLUSIONS: The LDC are underrepresented in publications in Pharmacology journals. The corresponding authors of the published articles think that biased attitude of the editors as well as the reviewers of international journals and the poor writing skills of scientists are the major factors underlying the non-acceptance of their results. They also think that the improvement in the writing skills and quality of research will increase the chances of acceptance of their works in international journals.

Is qualitative research second class science? A quantitative longitudinal examination of qualitative research in medical journals.

BACKGROUND: Qualitative research appears to be gaining acceptability in medical journals. Yet, little is actually known about the proportion of qualitative research and factors affecting its publication. This study describes the proportion of qualitative research over a 10 year period and correlates associated with its publication. DESIGN: A quantitative longitudinal examination of the proportion of original qualitative research in 67 journals of general medicine during a 10 year period (1998-2007). The proportion of qualitative research was determined by dividing original qualitative studies published (numerator) by all original research articles published (denominator). We used a generalized estimating equations approach to assess the longitudinal association between the proportion of qualitative studies and independent variables (i.e. journals' country of publication and impact factor; editorial/methodological papers discussing qualitative research; and specific journal guidelines pertaining to qualitative research). FINDINGS: A 2.9% absolute increase and 3.4-fold relative increase in qualitative research publications occurred over a 10 year period (1.2% in 1998 vs. 4.1% in 2007). The proportion of original qualitative research was independently and significantly associated with the publication of editorial/methodological papers in the journal (b = 3.688, P = 0.012); and with qualitative research specifically mentioned in guidelines for authors (b = 6.847, P<0.001). Additionally, a higher proportion of qualitative research was associated only with journals published in the UK in comparison to other countries, yet with borderline statistical significance (b = 1.776, P = 0.075). The journals' impact factor was not associated with the publication of qualitative research. CONCLUSIONS: Despite an increase in the proportion of qualitative research in medical journals over a 10 year period, the proportion remains low. Journals' policies pertaining to qualitative research, as expressed by the appearance of specific guidelines and editorials/methodological papers on the subject, are independently associated with the publication of original qualitative research; irrespective of the journals' impact factor.

Evaluation of articles on pulmonology published in Brazilian journals other than the Brazilian Journal of Pulmonology.

In Brazil, research on pulmonology has become increasingly more visible in recent years. In addition to the Brazilian Journal of Pulmonology, other journals have contributed to that by publishing relevant articles in this area. The objective of this article was to briefly report the most relevant studies on pulmonology that were published in other important Brazilian journals between 2009 and 2010. Altogether, there were 56 articles related to the various subareas that compose the field of respiratory diseases.

An international comparison of web-based reporting about health care quality: content analysis.

BACKGROUND: On more and more websites, consumers are provided with public reports about health care. This move toward provision of more comparative information has resulted in different information types being published that often contain contradictory information. OBJECTIVE: The objective was to assess the current state of the art in the presentation of online comparative health care information and to compare how the integration of different information types is dealt with on websites. The content analysis was performed in order to provide website managers and Internet researchers with a resource of knowledge about presentation formats being applied internationally. METHODS: A Web search was used to identify websites that contained comparative health care information. The websites were systematically examined to assess how three different types of information (provider characteristics and services, performance indicators, and health care user experience) were presented to consumers. Furthermore, a short survey was disseminated to the reviewed websites to assess how the presentation formats were selected. RESULTS: We reviewed 42 websites from the following countries: Australia, Canada, Denmark, Germany, Ireland, the Netherlands, Norway, the United Kingdom, the United States, and Sweden. We found the most common ways to integrate different information types were the two extreme options: no integration at all (on 36% of the websites) and high levels of integration in single tables on 41% of the websites). Nearly 70% of the websites offered drill down paths to more detailed information. Diverse presentation approaches were used to display comparative health care information on the Internet. Numbers were used on the majority of websites (88%) to display comparative information. CONCLUSIONS: Currently, approaches to the presentation of comparative health care information do not seem to be systematically selected. It seems important, however, that website managers become aware of the complexities inherent in comparative information when they release information on the Web. Important complexities to pay attention to are the use of numbers, the display of contradictory information, and the extent of variation among attributes and attribute levels. As for the integration of different information types, it remains unclear which presentation approaches are preferable. Our study provides a good starting point for Internet research to further address the question of how different types of information can be more effectively presented to consumers.