1
tesis doctoral
Publicado 2021
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La investigación está centrada en determinar la relación existente entre los estilos de aprendizaje y el modelo de aceptación tecnológica (TAM) en un entorno virtual, en estudiantes del área de Radiología de Tecnología Médica de la UNMSM, año 2019. Es una investigación no experimental y transversal, de nivel correlacional. La población fue de tipo censal, conformada por 100 estudiantes del área de Radiología de Tecnología Médica de la Universidad Nacional Mayor de San Marcos, año 2019. Se utilizó dos encuestas para medir cada variable de estudio. Los resultados de la investigación demuestran que existe relación significativa entre la variable estilos de aprendizaje y modelo de aceptación tecnológica (TAM) en un entorno virtual. Según el índice de correlación Rho de Spearman igual 0.997, esto indica que existe una correlación entre las variables. Con los resultad...
2
artículo
Publicado 2022
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Objective: To assess the antibacterial activity of Psidium guajava fractions and their effects on adhesion of a multispecies biofilm consisting of Streptococcus gordonii, Fusobacterium nucleatum, and Porphyromonas gingivalis in vitro. Material and Methods: Guava leaves were obtained from the mountains of northern Peru, where they grow wild and free of pesticides. The antimicrobial activity of 25 mg/mL petroleum ether, 25 mg/mL dichloromethane and 25 mg/mL methanol fractions of P. guajava was evaluated by measuring inhibition halos, as well as the effect on the adhesion of multispecies biofilms at 4, 7 and 10 days of growth by measuring the optical density. In addition, antimicrobial susceptibility was compared using the Kruskal-Wallis test and its multiple comparison tests, and differences in mean biofilm adhesion between each fraction were assessed by repeated measures analysis and the ...
3
artículo
Publicado 2022
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Objective:To assess the antibacterial activity of Psidium guajavafractions and their effects on adhesion of a multispecies biofilm consisting of Streptococcus gordonii, Fusobacterium nucleatum, and Porphyromonas gingivalisin vitro. Material and Methods:Guava leaves were obtained from the mountains of northern Peru, where they grow wild and free of pesticides. The antimicrobial activity of 25 mg/mL petroleum ether, 25 mg/mL dichloromethane and 25 mg/mL methanol fractions of P. guajavawas evaluated by measuring inhibition halos, as well as the effect on the adhesion of multispecies biofilms at 4, 7 and 10 days of growth by measuring the optical density. In addition, antimicrobialsusceptibility was compared using the Kruskal-Wallis test and its multiple comparison tests, and differences in mean biofilm adhesion between each fraction were assessed by repeated measures analysis and the Tukey ...