The use of games in education represents a promising tool to motivate and engage students in their learning process. Most of previous research on the topic has focused to develop theoretical frameworks or to conduct experiments as a means to analyse learning outcomes such as knowledge retention, problem-solving skills gains or attitudes toward game-based learning. Nevertheless, little research has focused on providing a comprehensive literature review, which will help researchers to better understand how this stream of research has evolved over the last years. In this study, we use a bibliometric, social network and text mining analysis in order to provide useful up-to-date information to picture the state of the art about current research and evolution of the topic. Analysis on a sample of 139 articles published in top journals over the last 5 years (2010-2014) allowed identifying relevant authors and institutions, key constructs and themes involved, and trends of knowledge development. Main findings suggest an increasing academic interest on the topic over the last 5 years and a wide variety of constructs that were clustered in four main themes that we named: (i) effectiveness, (ii) acceptance, (iii) engagement and (iv) social interactions. Future research lines are also addressed.

This bibliometric citation analysis reveals new, useful, and interesting information about scientific progress in the field of orthodontics.

This study revealed a significant growth in implant dentistry literature in terms of the total number of journals, number of authors, organizations, and author collaborations. Most key bibliometric indicators demonstrated upward trends.

Cómo citar este artículo/ Citation: Granda-Orive, J. I.; Alonso-Arroyo, A.; García-Río, F.; Solano-Reina, S.; Jiménez-Ruiz, C. A.; Aleixandre-Benavent, R. (2013 Resumen: El objetivo de este trabajo es comparar entre Web of Science (WoS) y Scopus los indicadores bibliométricos básicos del área de tabaquismo de autores españoles en el período 2000-2009. Métodos: La búsqueda se realizó en el SCI-Expanded y Scopus ("smok*" OR "tobac*"). Resultados: La media total anual del nº de documentos fue de 41 ± 12 para WoS vs 60 ± 16 en Scopus (p = 0,007). Aumento progresivo del índice de colaboración. La media anual del índice de colaboración fue de 9,41 ± 2,73 en WoS vs 7,12 ± 1,52 en Scopus (p = 0,029). Mayor número de citas con el paso del tiempo en ambas bases de datos pero son más recientes las citas en Scopus, el índice citas/artículo fue mayor en WoS (WoS 14,47 vs 11,50 Scopus). Conclusiones: Mayor número de revistas, trabajos, firmas y citas en Scopus comparado con WoS. El índice firmas/artículo e instituciones/artículo fue mayor en WoS. Incremento del índice de colaboración y mayor acúmulo de citas en los artículos más antiguos, pero más recientes en Scopus.Palabras clave: Bibliometría; Web of Science; Scopus; publicaciones científicas; tabaquismo. Certain advantages of Scopus compare with Web of Science in a bibliometric analysis related to smokingAbstract: Objective: To compare basic bibliometric indicators on the topic of smoking by Spanish authors in Web of Science (WoS) and Scopus (2000 to 2009). Methods: The search was performed in SCI-Expanded and Scopus (key words "smok*" OR "tobac*"). Results: Total annual mean of documents was 41 ± 12 for WoS vs 60 ± 16 for Scopus (p = 0.007). The collaboration index (CI) increased during the study period in both databases. The CI annual mean was 9.41 ± 2.73 in WoS vs 7.12 ± 1.52 in Scopus (p = 0.029). The number of citations rose over time in both databases, but citations were more recent in Scopus, although the citation/articles index was higher in WoS (14,47 vs 11,50). Conclusions: We found a higher number of journals, articles, signing authors and total citations in Scopus, but the signing authors/articles and institutions/articles indices were higher in WoS. The CI increased annually during the study period in both databases (the CI annual mean was higher in WoS). Citations were higher for older articles but more recent in Scopus (citation/articles index was higher in WoS).

Background and ObjectiveResearch 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.MethodsPubMed, 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.Results771 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.ConclusionScientific 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.