1,721,024 research outputs found
Colaboración y performance científico en el dominio científico de Cuba en Scopus, 2003-2011
No full textChinchilla-Rodríguez, Zaida; Arencibia-Jorge, Ricardo; Corera-Álvarez, Elena; Moya-Anegón, Félix (2014). Colaboración y performance científico en el dominio científico de Cuba en Scopus, 2003-2011. XIII Congreso Internacional de Información INFO’2014. La Habana, Cuba, 14 al 18 de abril del 2014Este trabajo presenta un avance de resultados sobre algunos patrones de comportamiento de la producción científica cubana para el período 2003-2011 en la base de datos Scopus. A partir de un conjunto de indicadores bibliométricos, se pretende dar luz sobre cómo evoluciona el volumen y la presencia de producción científica, tanto en revistas cubanas como extranjeras y su distribución y visibilidad por cuartiles. También se realiza un análisis de las citas por documento recibidas dependiendo de la lengua de publicación y los tipos de colaboración. Los resultados ayudan a entender patrones y estrategias de expansión en la comunicación científica que pueden ser útiles en la toma de decisiones tanto a nivel académico e institucional, como editorial para la mejora de su calidad científica y su apertura internacionalEstancia de Ricardo Arencibia en el Programa de Visitantes 2013 del Instituto de Políticas y Bienes Públicos (IPP-CSIC)Peer reviewe
Cesarean section: a historical account
Full text linkA historical summary of the cesarean section is presented here, from the ancient ages to our times. The evolution of its surgical technique, the impact of anesthesia and antiseptic practices in its subsequent development and the reduction in perinatal mortality as a consequence of the discovery of antibiotics and ultrasound, are described. The contributions of Porro and Sänger to the success of the operation are also described, as well as the extraperitoneal techniques and the segmentary cesarean surgery. Finally, the current techniques and indications for this surgical procedure are discussed.Se presenta un recuento histórico de la operación cesárea desde la antigüedad hasta la era contemporánea. Se plantea la evolución de su técnica quirúrgica, el impacto de la anestesia y la antisepsia en su desarrollo ulterior, y la reducción de la mortalidad perinatal con el descubrimiento de los antibióticos y la ultrasonografía. Se describen las contribuciones de Sänger al éxito de la operación, así como las técnicas extraperitoneales y la cesárea segmentaria. Finalmente, se comentan las técnicas e indicaciones de la operación en la actualidad
Domain Analysis for the Construction of a Conceptual Structure: A Case Study
Full text linkThis work describes the construction of a conceptual structure, as a result of the domain analysis of the current research on Benign Prostatic Hyperplasia (BPH), through different techniques based on the citations and semantic analysis. A sample which covers all published articles about the disease in mainstream journals was chosen. A total of 1,968 articles from 2000 through 2004 were retrieved from Science Citation Index. Author Co-citation Analysis (ACA) techniques and semantic analysis were used and the results were represented by different informatic programs. A macrostructure of the domain of the current research on BPH was identified through bibliometric techniques. The text mining techniques allowed validation of the identified macrostructure and the obtainment of the most frequent words in the text. The semantic analysis of the most cited reviews on BPH during the studied period allowed the definition of the categories to be used in the structure. Finally, a conceptual structure to be used as controlled (structured) language in the information retrieval, inside of a specialized information system on the approach of the disease is shown
Segundo Encuentro sobre Sistemas de Gestión para las Tecnologías de la Información y las Comunicaciones, SIGESTIC’2019
Full text link-
Scientific output of the emerging Cuban biopharmaceutical industry: a scientometric approach
No full text"This is a post-peer-review, pre-copyedit version of an article published in Scientometrics. The final authenticated version is available online at: https://doi.org/10.1007/s11192-016-2023-1"Cuba has developed a biopharmaceutical sector that involves some of the country’s most relevant scientific institutions. Despite the severe constraints on resources resulting from the U.S. embargo, the results achieved by this sector have contributed to put the country’s health indicators at the same level of high-income nations. Recently, the creation of BioCubaFarma as a cluster of high-technology enterprises organized around a closed cycle model becomes one of the most relevant efforts of the Island in order to make biopharmaceuticals one of the country’s leading export earners. The main aim of the current paper was to characterize BioCubaFarma through a battery of Scopus-based bibliometric indicators. A comparison with the most productive multinational pharmaceutical companies was made. Regression analysis of annual productivity, number of citations, scientific talent pool, innovative knowledge and other citation-based indicators was performed. Differences and similarities between BioCubaFarma and multinational companies in four Scopus subject categories related to this sector were identified. The most productive and visible institutions from BioCubaFarma were also characterized. Qualified human resources, innovative knowledge, leadership, high specialization in the field of vaccines development and non-dependence of international collaboration are strengths of the organization. However, it is still necessary to increase the number of articles published in highly visible journals with the aim to achieve a better citation-based performance. Moreover, to increase the contributions from less-productive institutions, more clinical research published in medical journals and more collaboration with universities and health institutions could also have positive benefits for BioCubaFarma’s pipelines and portfolios.This research was supported by 2015 Postdoctoral Short Visiting Program of the Spanish Instituto de Bienes y Políticas Públicas (IPP) from Consejo Superior de Investigaciones Científicas (CSIC).Peer reviewe
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Visibilidad internacional de la Ciencia y Educación Superior cubanas: desafíos del estudio de la producción científica
Full text linkTesis Univ. Granada. Departameno de Biblioteconomía y Documentación. Leiída el 16 de diciembre del 201
- …
