RESUMO
Objetivo: analizar la producción de literatura científica respecto a la fricción en ortodoncia en los últimos 10 años, a través del estudio de indicadores bibliométricos, tales como: producción anual de artículos, revistas; autores, cooperación entre autores, países que cooperan, instituciones asociadas a las investigaciones, análisis de citas y co-ocurrencia. Métodos: se realizó un estudio bibliométrico descriptivo, retrospectivo de las bases de datos Web of Science y Pubmed, con una ventana de tiempo de 2010 a 2019. Luego de identificar todos los artículos sobre fricción en ortodoncia, se revisaron las variables de producción anual de artículos, revistas, autores, cooperación, países, instituciones, análisis de citas y co-ocurrencia. Para el análisis se utilizó Excel 2013 y VOSviewer 1.6.15, este último es un software gratuito para el análisis de datos bibliométricos. Resultados: para ambas bases de datos, el año de mayor producción en el tema fue 2015; la revista identificada con mayor cantidad de artículos fue Angle Orthodontics; Bourauel Christoph es el principal autor. Brasil fue el país con más publicaciones asociadas a este tema. Las instituciones que más publicaron para Web of Science y Pubmed fueron la Universidad de Bonn y la Universidad Nacional de Seoul. Respecto al análisis de co-ocurrencia, en ambas bases se encontró como variable común el bracket de autoligado, movimiento, tratamiento, sistema, y superficie. Conclusión: la actual producción de publicaciones sobre la fricción en ortodoncia indica una pobre producción de publicaciones en la temática. De esta manera, se destaca que la investigación en fricción sigue en desarrollo gracias a un grupo mínimo de científicos productivos que abordan aspectos que podrían ser de interés para otros investigadores.
Objective: To analyze with some bibliometric indicators (annual production of articles, journals, authors, cooperation, countries, institutions, citation analysis and co-concurrency) production in the scientific literature on the subject of friction in orthodontics over the past 10 years. Methods: A descriptive, retrospective bibliometric study of two databases Web of Science and PubMed with time window 2010 to 2019 was performed. All articles on friction in orthodontics were identified and the variables of annual article production, journals, authors, cooperation, countries, institutions, citation analysis and co-occurrence were reviewed. Excel 2013, VOSviewer 1.6.15 which is a free software for bibliometric data analysis was used for the analysis. Results: The year of the highest production on the subject since the period studied was 2015 and the magazine with the most articles is the Angle Orthodontics for both databases. Bourauel Christoph is the main author. Brazil is the country with the most publications. Among the institutions that publish the most for Web of Science is the University of Bonn and Seoul National University for Pubmed. In co-occurrence analysis, it was found in common for both self-ligating bracket, movement, treatment, system, and surface databases. Conclusion: There is an output of publications on friction in orthodontics that indicates little relevance to the current topic. In this way it is emphasized that frictional research is still in development with a minimal group of productive scientists in aspects that may be of interest to other researchers.
Assuntos
Humanos , Bibliometria , Fricção em Ortodontia , Pesquisa , Base de Dados , Publicações Científicas e Técnicas , Análise de DadosRESUMO
BACKGROUND: The MALDI (matrix-assisted laser desorption/ionization) Biotyper system for bacterial identification has already been utilized in clinical microbiology laboratories as a successful clinical application of protoemics. However, in cases of Nocardia, mass spectra suitable for MALDI Biotyper identification are often not obtained if such specimens are processed like general bacteria. This problem is related to the insufficiencies in bacterial spectrum databases that preclude accurate specimen identification. Here, we developed a bacterial processing method to improve mass spectra from specimens of the genus Nocardia. In addition, with the new processing method, we constructed a novel in-house bacterial database that combines a commercial database and mass spectra of Nocardia strains from the Department of Clinical Laboratory at Chiba University Hospital (DCLC) and the Medical Mycology Research Center at Chiba University (MMRC). RESULTS: The newly developed method (Nocardia Extraction Method at DCLC [NECLC]) based on ethanol-formic acid extraction (EFAE) improved mass spectra obtained from Nocardia specimens. The Nocardia in-house database at Chiba University Hospital (NDCUH) was then successfully validated. In brief, prior to introduction of the NECLC and NDCUH, 10 of 64 (15.6%) clinical isolates were identified at the species level and 16 isolates (25.0%) could only be identified at the genus level. In contrast, after the introduction, 58 isolates (90.6%) were identified at the species level and 6 isolates (9.4%) were identified at the genus level. CONCLUSIONS: The results of this study suggest that MALDI-TOF (time-of-flight) Biotyper system can identify Nocardia accurately in a short time in combination with a simple processing method and an in-house database.
