38 research outputs found

    Análisis de la productividad, colaboración e impacto científico de la cardiología española (1999-2008)

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    De acuerdo con los datos disponibles por Who (2004), alrededor del 50% del total de las muertes en Europa se encuentran relacionadas con enfermedades reumáticas, hipertensión, isquemias, enfermedades cerebrovasculares o enfermedades cardiovasculares e inflamatorias. Según la información proporcionada por el Instituto Nacional de Estadística (2010) las enfermedades cardiovasculares se constituyen como la primera causa de muerte, siendo responsables del 31,7% del total de las defunciones en 2008 en España. Del mismo modo, estas enfermedades tienen asociadas también importantes consecuencias económicas, sociales y en el sistema sanitario, con lo que se están realizando esfuerzos para investigar sobre los factores que afectan a la salud y la enfermedad, lo que puede verse reflejado en que España ha experimentado una progresión en su actividad científica investigadora, capacidad y producción sin precedentes en su historia durante los últimos 25 años. El objetivo general de la presente tesis doctoral es analizar, mediante la utilización de indicadores bibliométricos, la actividad científica plasmada en publicaciones visibles internacionalmente que han sido generadas por instituciones cardiológicas españolas durante la década 1999-2008, así como la identificación de las redes o grupos de investigación de instituciones y autores a través del análisis de redes sociales. Las fuentes consultadas para elaborar este trabajo han sido las bases de datos SCI-Expanded (Science Citation Index Expanded) de Thompson Corporation (http://scientific.thomson.com/aboutus/) y la base de datos IME/Índice Médico Español elaborada por el Consejo Superior de Investigaciones Científicas, siendo los documentos analizados los artículos originales, artículos de revisión, editoriales y cartas, habiendo desechado del análisis los resúmenes de comunicaciones a congresos, los artículos bibliográficos, las correcciones, reprints y noticias. Los resultados constataron que la producción española en el área de Cardiología ha experimentado durante el período un incremento del 51,10%, pasando de 1.104 documentos en el año 1998 a 1.668 en el año 2008. Asimismo, el 72,81% de los trabajos recuperados han sido artículos originales, constituyéndose este tipo documental como el preferido por los especialistas españoles en Cardiología para transmitir sus conocimientos. Revista Española de Cardiología se constituye en este trabajo como la revista española más productiva y más citada, con 3.239 citas y a pesar de que la lengua española tiene una representación apenas perceptible en la proyección internacional de la ciencia y la tecnología, en nuestro estudio, al haber realizado las búsquedas en la base de datos IME, el número de documentos publicados en inglés y en español ha sido muy similar (47% y 46%, respectivamente). Los “pequeños productores”, autores ocasionales o transitorios (que publican un único trabajo; n=18.772) suponen el 65,07% de los autores, mientras que el 92,89% de los documentos han sido realizados en colaboración, porcentaje que aumenta al 95,66% si se consideran únicamente los artículos originales. Destaca la colaboración con países del entorno geográfico, cultural o político, como los Estados Unidos y los países europeos occidentales, mientras que la colaboración es más limitada con los países de la Europa oriental y del Norte (entre los que destacan Polonia, Finlandia, Noruega y Grecia) y Latinoamérica, a pesar de compartir un idioma común. Los países europeos con mayor número de artículos publicados han sido Reino Unido (18,62%) Alemania (16,70%), Italia (13,32%), Francia (9,57%) y Holanda (5,62%), ocupando España (5,62%) el 6º lugar en el ranking europeo y el 11º en el mundial, superado por Estados Unidos, Japón, Canadá y Australia.The main objective of this thesis is to analyze, through the use of bibliometric indicators, the scientific activity that is reflected in internationally visible publications that have been generated by Spanish cardiology institutions during the decade 1999-2008. The sources consulted to elaborate this work have been the databases SCI-Expanded (Science Citation Index Expanded) of Thompson Corporation (http: // scientific.thomson.com/aboutus/) and the database Spanish IME/Índice Médico Español elaborated by the National Research Council. The results found that the Spanish production in the area of Cardiology has experienced during the period a 51,10% increase, from 1.104 documents in 1998 to 1.668 in 2008. Likewise, 72,81% of retrieved works were original articles, becoming this documental type such as preferred by the Spanish specialists in cardiology to transmit on their knowledge. Stands out the collaboration with countries of the geographical, cultural or political environment, as the United States and the European western countries, whereas the collaboration is more limited by the countries of the Eastern Europe and of the North (most notably Poland, Finland, Norway and Greece) and Latin America, despite sharing a common language. The European countries with major number of published articles have been United Kingdom (18,62 %) Germany (16,70 %), Italy (13,32 %), France (9,57 %) and Holland (5,62 %), occupying Spain (5,62 %) 6 º place in the European ranking and 11 º in the world one overcome by The United States, Japan, Canada and Australia. The European countries with largest number of published articles have been United Kingdom (18,62 %) Germany (16,70 %), Italy (13,32 %), France (9,57 %) and Holland (5,62 %), occupying Spain (5,62 %) 6th place in the European ranking and 11th in the world one overcome by The United States, Japan, Canada and Australia

    Current trends in scientific research on global warming: a bilbiometric analysis

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    [EN] The objective of this paper is to contribute to a better understanding of the scientific knowledge in global warming, as well as to investigate the evolution of the research knowledge through the published papers included in Web of Science database. A bibliometric and social network analyses was performed to obtain indicators of scientific productivity, impact and collaboration between researchers, institutions and countries. A subject analysis was also carried out taking into account the key words assigned to papers and subject areas of journals. A number of 1,672 articles were analysed since 2005 until 2014. The most productive journals were Journal of Climate (n = 95) and the most frequent keyword have been climate change (n = 722). The network of collaboration between countries shows the central position of the USA. Papers on the topic are published in a vast amount of journals from several subject categories. KeywordsAleixandre-Tudó, JL.; Bolaños-Pizarro, M.; Aleixandre, JL.; Aleixandre-Benavent, R. (2019). Current trends in scientific research on global warming: a bilbiometric analysis. International Journal of Global Warming. 17(2):142-169. https://doi.org/10.1504/IJGW.2019.097858 DOI: 10.1504/IJGW.2019.10019213S14216917

    Worldwide Scientific Research on Nanotechnology: A Bibliometric Analysis of Tendencies, Funding, and Challenges

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    This document is the unedited Author¿s version of a Submitted Work that was subsequently accepted for publication in Journal of Agricultural and Food Chemistry, copyright © American Chemical Society after peer review. To access the final edited and published work see https://doi.org/10.1021/acs.jafc.0c02141.[EN] The main objective of this investigation was to analyze the scientific production in global research on nanotechnology, integrating scientific production, funding of studies, collaborations between countries, and the most cited publications. The source for obtaining the research papers for our analysis was the Science Citation Index Expanded from the Web of Science. A total of 3546 documents were extracted during the period of 1997-2018. Food science & technology, chemistry (applied and analytical), spectroscopy, and agriculture appeared as the main areas where the articles were published. Most prolific and cited journals were Analytical Methods, Journal of Agricultural and Food Chemistry, and Food Chemistry. The co-word analysis showed the relationships between "nanoparticles", which is the central word, and "silver nanoparticles", "delivery systems", and "zincnanoparticles". The most productive countries were China (1089 papers), the United States (523), Iran (427), and India (359). The main cited topics deal with the biomedical applications of nanoparticles, its synthesis from plants, and its applications in food science. The results highlight an important collaboration between institutions and countries. The availability of funding for research in nanotechnology was remarkable compared to other fields. The multidisciplinarity of the nanotechnology field is one of the main features as well as one of the central findings.Aleixandre-Tudó, JL.; Bolaños Pizarro, M.; Aleixandre Benavent, JL.; Aleixandre-Benavent, R. (2020). Worldwide Scientific Research on Nanotechnology: A Bibliometric Analysis of Tendencies, Funding, and Challenges. Journal of Agricultural and Food Chemistry. 68(34):9158-9170. https://doi.org/10.1021/acs.jafc.0c02141S915891706834Ranjan, S., Dasgupta, N., & Lichtfouse, E. (Eds.). (2016). Nanoscience in Food and Agriculture 1. Sustainable Agriculture Reviews. doi:10.1007/978-3-319-39303-2National Science and Technology Council (NSTC). National Nanotechnology Initiative Strategic Plan; NSTC: Washington, D.C., 2016; https://www.nano.gov/sites/default/files/pub_resource/2016-nni-strategic-plan.pdf (accessed June 11, 2020.Durán, N., & Marcato, P. D. (2012). Nanobiotechnology perspectives. Role of nanotechnology in the food industry: a review. International Journal of Food Science & Technology, 48(6), 1127-1134. doi:10.1111/ijfs.12027Chaudhry, Q., Castle, L., & Watkins, R. (Eds.). (2010). Nanotechnologies in Food. Nanoscience & Nanotechnology Series. doi:10.1039/9781847559883Duncan, T. V. (2011). Applications of nanotechnology in food packaging and food safety: Barrier materials, antimicrobials and sensors. Journal of Colloid and Interface Science, 363(1), 1-24. doi:10.1016/j.jcis.2011.07.017Chen, W.-T., Chan, A., Jovic, V., Sun-Waterhouse, D., Murai, K., Idriss, H., & Waterhouse, G. I. N. (2014). Effect of the TiO2 Crystallite Size, TiO2 Polymorph and Test Conditions on the Photo-Oxidation Rate of Aqueous Methylene Blue. Topics in Catalysis, 58(2-3), 85-102. doi:10.1007/s11244-014-0348-7WATERHOUSE, G. (2004). Influence of catalyst morphology on the performance of electrolytic silver catalysts for the partial oxidation of methanol to formaldehyde. Applied Catalysis A: General, 266(2), 257-273. doi:10.1016/j.apcata.2004.02.015Chen, W.-T., Chan, A., Sun-Waterhouse, D., Moriga, T., Idriss, H., & Waterhouse, G. I. N. (2015). Ni/TiO2: A promising low-cost photocatalytic system for solar H2 production from ethanol–water mixtures. Journal of Catalysis, 326, 43-53. doi:10.1016/j.jcat.2015.03.008Allen, M. W., Zemlyanov, D. Y., Waterhouse, G. I. N., Metson, J. B., Veal, T. D., McConville, C. F., & Durbin, S. M. (2011). Polarity effects in the x-ray photoemission of ZnO and other wurtzite semiconductors. Applied Physics Letters, 98(10), 101906. doi:10.1063/1.3562308Leveneur, J., Waterhouse, G. I. N., Kennedy, J., Metson, J. B., & Mitchell, D. R. G. (2011). Nucleation and Growth of Fe Nanoparticles in SiO2: A TEM, XPS, and Fe L-Edge XANES Investigation. The Journal of Physical Chemistry C, 115(43), 20978-20985. doi:10.1021/jp206357cWaterhouse, G. I. N., Chen, W.-T., Chan, A., Jin, H., Sun-Waterhouse, D., & Cowie, B. C. C. (2015). Structural, Optical, and Catalytic Support Properties of γ-Al2O3 Inverse Opals. The Journal of Physical Chemistry C, 119(12), 6647-6659. doi:10.1021/acs.jpcc.5b00437Murdoch, M., Waterhouse, G. I. N., Nadeem, M. A., Metson, J. B., Keane, M. A., Howe, R. F., … Idriss, H. (2011). 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(2007). The present and future of nanotechnology in human health care. Nanomedicine: Nanotechnology, Biology and Medicine, 3(1), 20-31. doi:10.1016/j.nano.2006.11.008Celik, I., Mason, B. E., Phillips, A. B., Heben, M. J., & Apul, D. (2017). Environmental Impacts from Photovoltaic Solar Cells Made with Single Walled Carbon Nanotubes. Environmental Science & Technology, 51(8), 4722-4732. doi:10.1021/acs.est.6b06272Xiao, H., Ai, Z., & Zhang, L. (2009). Nonaqueous Sol−Gel Synthesized Hierarchical CeO2 Nanocrystal Microspheres as Novel Adsorbents for Wastewater Treatment. The Journal of Physical Chemistry C, 113(38), 16625-16630. doi:10.1021/jp9050269Crane, R. A., & Scott, T. B. (2012). Nanoscale zero-valent iron: Future prospects for an emerging water treatment technology. Journal of Hazardous Materials, 211-212, 112-125. doi:10.1016/j.jhazmat.2011.11.073KOSTOFF, R., TSHITEYA, R., PFEIL, K., HUMENIK, J., & KARYPIS, G. (2005). Power source roadmaps using bibliometrics and database tomography. Energy, 30(5), 709-730. doi:10.1016/j.energy.2004.04.058Heersmink, R., van den Hoven, J., van Eck, N. J., & van den Berg, J. (2011). Bibliometric mapping of computer and information ethics. Ethics and Information Technology, 13(3), 241-249. doi:10.1007/s10676-011-9273-7Moed, H. F., De Bruin, R. E., & Van Leeuwen, T. N. (1995). New bibliometric tools for the assessment of national research performance: Database description, overview of indicators and first applications. Scientometrics, 33(3), 381-422. doi:10.1007/bf02017338Kostoff, R. N. (2002). Scientometrics, 53(1), 49-71. doi:10.1023/a:1014831920172Waltman, L. (2016). A review of the literature on citation impact indicators. Journal of Informetrics, 10(2), 365-391. doi:10.1016/j.joi.2016.02.007Aleixandre-Tudó, J. L., Castelló-Cogollos, L., Aleixandre, J. L., & Aleixandre-Benavent, R. (2019). Tendencies and Challenges in Worldwide Scientific Research on Probiotics. 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    Análisis de género, productividad científica y colaboración de las profesoras universitarias de ciencias de la salud en la comunitat valenciana (2003-2007).

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    Se presenta la producción científica de las profesoras universitarias en el área de las Ciencias de la Salud de la Comunitat Valenciana durante el quinquenio 2003-2007 aplicando técnicas bibliométricas y realizando un análisis de género con el fin de conocer cuántas llegan a ser grandes productoras de artículos científicos frente a las que no alcanzan estos niveles de productividad e impacto. Se han recuperado 3.739 artículos durante el período estudiado, identificando el género de todos los autores con más de 2 artículos. De estos autores, 2.774 (60,41 %) son hombres y 1.818 (39,59 %) son mujeres, pero si se analizan solamente a los grandes productores, las autoras con más de 10 trabajos únicamente llegan a ser el 26,72 %. Respecto a la colaboración científica hay que resaltar que las mujeres están presentes en todas las redes de al menos 10 autores y en algunos casos su presencia se equipara a la de los hombres. Pese a que la participación de la mujer en todas las áreas del conocimiento es inferior a los hombres, en las Ciencias de la Salud la proporción es menor que en otras áreas técnicas. La aportación de las mujeres al ámbito científico es cada vez mayor pudiendo alcanzar la paridad con el paso de los años

    Análisis de género de la producción científica española sobre drogodependencias en biomedicina 1999-2004

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    Correspondencia a Juan Carlos Valderrama Zurián:[email protected] y objetivo: La preocupación por favorecer la igualdad de género constituye uno de los ámbitos prioritarios objeto de atención por parte de los gobiernos y los organismos gestores de las políticas científicas, destacándose la importancia de incluir la variable del sexo en los análisis evaluativos de la actividad científica y tecnológica. Se realiza un estudio comparativo desagregado por sexos de la producción científica de los investigadores españoles de elevada productividad en el área de las drogodependencias. Material y método: Se ha identificado el sexo de los 338 autores que han publicado más de cuatro artículos distintos durante el período 1999-2004 indexados en las bases de datos IME/Índice Médico Español y SCI/Science Citation Index, analizando comparativamente su productividad y patrones de colaboración considerando la variable sexo. Resultados: Entre los grandes productores (> 9 trabajos) del ámbito de las drogodependencias predominan los hombres (70%) frente a las mujeres (30%). Entre los productores moderados (5-9 trabajos), el 57% de los autores identificados fueron hombres frente a un 43% de mujeres. Se han observado diferencias estadísticamente significativas entre hombres y mujeres en los grandes productores en cuanto al número de trabajos publicados y personas con las que han colaborado. Conclusiones: En el área de las drogodependencias no existe una igualdad de género, especialmente cuando se considera la élite de la investigación. Resulta fundamental profundizar en estudios que evalúen de forma desagregada por sexos la productividad científica para acometer las medidas correctoras necesarias que permitan alcanzar la igualdad de género.Background and objective: Concern for encouraging gender equality makes it one of the high priority spheres of action for governments and organisations responsible for instigating scientific policies, with particular importance being placed on including the gender variable in evaluative analyses of scientific and technological activity. A comparative study was made, broken down by gender, of the scientific output of Spanish researchers with a high production in the field of substance abuse. Material and method: We identified the gender of 338 authors who had published more than four different articles during the period from 1999-2004 and which were indexed in the IME/Índice Médico Español and the SCI/Science Citation Index databases, making a comparative analysis of their output and collaboration patterns, based on the gender variable. Results: In the area of substance abuse, of those with the highest output (> 9 papers), 70% were men compared with 30% women. Among the average producers (5-9 papers), 57% of the authors identified were men and 43% women. Statistically significant differences were observed between men and women with the highest output with regard to the number of published works and those with whom they had collaborated. Conclusions: There is no gender equality in the area of substance abuse, particularly when considering the top researchers. It is essential to make in-depth studies that evaluate scientific output, broken down by gender, in order to adopt the necessary corrective measures to eliminate the disparity between men and women

    Scientific impact in articles of the application of oriental body-mind therapy practices (2006-2010).

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    Global research on mind-body therapies is analysed, by focussing on scholarly articles on three Eastern disciplines (yoga, tai chi and qi gong) and three procedures (meditation, breathing exercises and relaxation). The bibliographic research was done using the Scopus database. The search was limited to the biomedical areas and to the years 2006-2010. We have analysed 2,363 articles published by 959 different journals. They were written by 6,583 authors from 2,162 institutions in 65 countries. Indicators of scientific productivity and impact were calculated for institutions, countries and subject areas, and the collaboration between authors and institutions was also determined. We have observed a progressive increase of publications, especially on yoga and meditation, particularly from universities in the US, India and China with a marked concentration in the areas of internal medicine, mental health and oncology

    An analysis of abstracts presented to the College on Problems of Drug Dependence meeting and subsequent publication in peer review journals

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    7 pages, 1 table, 1 figure.-- A preliminary version of the study was presented at the 2007 CPDD meeting (Quebec, Canada). Aleixandre, R., Valderrama, J.C., Bolaños, M., Bueno, F., Tortajada, S., Needle, P., Pérez de los Cobos, JC. (2007). The College on Problems of Drug Dependence (CPDD) 2007 Meeting Program & Abstracts Results Quebec, Canada. Retrieved March 6, 2008, from http:/ /biopsych.comBackground: Subsequent publication rate of abstracts presented at meetings is seen as an indicator of the interest and quality of the meeting. We have analyzed characteristics and rate publication in peer-reviewed journals derived from oral communications and posters presented at the 1999 College on Problems of Drug Dependence (CPDD) meeting.Methods: All 689 abstracts presented at the 1999 CPDD meeting were reviewed. In order to find the existence of publications derived from abstracts presented at that meeting, a set of bibliographical searches in the database Medline was developed in July 2006. Information was gathered concerning the abstracts, articles and journals in which they were published.Results: 254 out of 689 abstracts (36.9%) gave rise to at least one publication. The oral communications had a greater likelihood of being published than did the posters (OR = 2.53, 95% CI 1.80-3.55). The average time lapse to publication of an article was 672.97 days. The number of authors per work in the subsequent publications was 4.55. The articles were published in a total of 84 journals, of which eight were indexed with the subject term Substance-Related Disorders. Psychopharmacology (37 articles, 14.5%) was the journal that published the greatest number of articles subsequent to the abstracts presented at the 1999 CPDD meeting.Conclusion: One out of every three abstracts presented to the 1999 CPDD meeting were later published in peer-reviewed journals indexed in Medline. The subsequent publication of the abstracts presented in the CPDD meetings should be actively encouraged, as this maximizes the dissemination of the scientific research and therefore the investment.This research has been supported by the Plan Municipal de Drogodependencias, Ayuntamiento de Valencia, and the Ministerio de Sanidad y Consumo, Red de Trastornos Adictivos RD06/0001/0020. Máxima Bolaños- Pizarro has collaborated thanks to the V Segles Program of the University of Valencia (Spain).Peer reviewe

    Análisis de la productividad científica y visibilidad de las publicaciones sobre usabilidad (1971-2005)

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    Objetivo: Analizar los artículos sobre usabilidad publicados durante el periodo 1971-2005 desde el punto de vista bibliométrico. Material y Métodos: Para obtener los trabajos se interrogaron las bases de datos del CSIC, Social Science Citation Index, Science Citation Index, PsycInfo, MEDLINE e Inspec mediante estrategias de búsqueda diseñadas ad hoc para cada base de datos. Se calcularon los índices de aporte, aporte específico y solapamiento y los indicadores de evolución de la productividad científica, productividad de las instituciones de trabajo y de las revistas, y distribución de las revistas por área de conocimiento. Resultados: Se ha observado un crecimiento exponencial de los artículos publicados, más acusado en el último quinquenio. Las instituciones más productivas son fundamentalmente universitarias y estadounidenses y las revistas más productivas pertenecen al campo de la informática, ingeniería y psicología. Conclusiones: en la actualidad existe una incógnita sobre la consideración de la usabilidad como ciencia o disciplina científica, ya que no cuenta con un currículo formativo acorde, ni un perfil profesional determinado, ni un área específica de conocimiento en la que se pueda englobar.Aims: To analyse usability-related articles published in the period 1971-2005 from a bibliometric point of view. Methods: A search for articles was made in the CSIC databases, the Social Science Citation Index, Science Citation Index, PsycInfo, MEDLINE and Inspec databases, using ad hoc search strategies designed for each. Contribution, specific contribution and overlap indices were calculated, as were the indicators of change in scientific production, the productivity of institutions and journals, and the distribution of journals by area of knowledge. Results: An exponential increase in the number of published articles was recorded, with the highest increase seen over the last fi ve years. The most productive institutions were mostly US universities; the most productive journals were related to Computer Science, Engineering and Psychology. Conclusions: Currently there is controversy surrounding the idea of usability as a science or scientific discipline since it lacks an appropriate training curriculum, has no set professional profile, and it is unsure into what specific area of knowledge it falls.Bolaños Pizarro, Máxima, [email protected] ; Vidal Infer, Antonio, [email protected] ; Navarro Molina, Carolina, [email protected] ; Valderrama Zurian, Juan, [email protected] ; Gonzalez Alcaide, Gregorio, [email protected] ; Aleixandre Benavent, Rafael, [email protected]

    Viticulture and oenology scientific research: The Old World versus the new World wine-producing countries

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    [EN] The main aim of this study was to analyze the scientific productivity and collaboration between Old World wine-producing countries (Austria, Bulgaria, France, Germany, Greece, Hungary, Italy, Portugal, Romania, Spain, Switzerland) and New World wine-producing countries (Argentina, Australia, Brazil, Canada, Chile, Mexico, New Zealand, Peru, South Africa, United Sates, Uruguay) in viticulture and oenology through bibliometric analyses of articles included in the Science Citation Index Expanded database for the period 1994-2013. A number of 1527 research articles were published in 563 journals. The results highlight an important growth in the collaboration between countries during the second decade (2004-2013). Papers have been published in numerous journals belonging to several subject areas. Food Science and Technology, Horticulture and Biotechnology and Applied Microbiology appeared as the most productive research areas. A social network analysis of collaboration between these countries was also performed in order to analyze the most powerful scientific cooperation. (C) 2016 Elsevier Ltd. All rights reserved.Aleixandre Benavent, JL.; Aleixandre Tudó, JL.; Bolaños-Pizarro, M.; Aleixandre Benavent, R. (2016). Viticulture and oenology scientific research: The Old World versus the new World wine-producing countries. International Journal of Information Management. 36(3):389-396. https://doi.org/10.1016/j.ijinfomgt.2016.01.003S38939636
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