ABSTRACT
Introducción: El derecho a prácticas pre-profesionales amparado bajo la Ley Peruana permite que el estudiante de último año de la carrera de medicina humana comience a participar en procedimientos e intervenciones asistenciales de salud bajo la guía de un médico tutor. Objetivo: determinar los factores asociados a bajo conocimiento en bioseguridad en internos de medicina de una universidad del Perú en el contexto de la pandemia covid-19. Metodología: se realizó un diseño observacional, prolectivo y transversal. La muestra estuvo comprendida por 336 internos de medicina humana, los cuales se seleccionaron por muestreo probabilístico aleatorio simple. Se empleó un instrumento válido y confiable para determinar el nivel de conocimiento en bioseguridad. Se trabajó con un modelo de regresión de binario logarítmico bivariado y múltiple para el cálculo de la razón de prevalencia cruda y ajustada con sus respectivos intervalos de confianza al 95% para los factores asociados al nivel de conocimiento en bioseguridad. Resultados: se encontraron niveles de conocimiento alto, medio y bajo del 44,6%, 26,8% y 28 ,6% respectivamente. El estado civil casado (RPA 0.418, IC95% 0.181 - 0.968), convivir con personas con riesgo para síntomas graves por covid-19 (RPA 0.472, IC95% 0.344-0.647), realizar el internado medico en un hospital y haber sido diagnosticado por covid-19 en los últimos 12 meses (RPA 0.586, IC95% 0.387-0.887) se asociaron a un nivel de conocimiento bajo bioseguridad por modelo de regresión binaria logarítmica múltiple. Discusión: el estado civil casado, el convivir con personas con riesgo para síntomas graves de covid-19, el realizar el internado medico en un centro hospitalario y el haber sido diagnosticado con covid-19 tienen una relación inversamente proporcional con el conocimiento bajo en bioseguridad en internos de medicina en el contexto de la pandemia covid-19.
Introduction: The right to pre-professional practices protected under Peruvian Law allows the student in the last year of the human medicine career to begin to participate in health care procedures and interventions under the guidance of a tutor. Objective: to determine the factors associated with low knowledge of biosafety in medical interns at a university in Peru in the context of the covid-19 pandemic. Methods: an observational, prolective and cross-sectional design was carried out. The sample consisted of 336 human medicine interns, who were selected by simple random probabilistic sampling. A valid and reliable instrument was used to determine the level of knowledge in biosafety. A bivariate and multiple logarithmic binary regression model was used to calculate the crude and adjusted prevalence ratio with their respective 95% confidence intervals for the factors associated with the level of knowledge in biosafety. Results: high, medium and low levels of knowledge of 44.6%, 26.8% and 28.6% respectively were found. Married marital status (RPA 0.418, 95% CI 0.181 - 0.968), living with people at risk for severe symptoms from covid-19 (RPA 0.472, 95% CI 0.344-0.647), undergoing medical internship in a hospital, and having been diagnosed by covid-19 in the last 12 months (RPA 0.586, 95% CI 0.387-0.887) were associated with a level of knowledge under biosafety by multiple logarithmic binary regression model. Discussion: married marital status, living with people at risk for severe symptoms of covid-19, undergoing medical internship in a hospital center and having been diagnosed with covid-19 have an inversely proportional relationship with low knowledge in biosafety. In medical interns in the context of the covid-19 pandemic.
ABSTRACT
Thin film libraries of Fe-Co-V were fabricated by combinatorial sputtering to study magnetic and structural properties over wide ranges of composition and thickness by high-throughput methods: synchrotron X-ray diffraction, magnetometry, composition, and thickness were measured across the Fe-Co-V libraries. In-plane magnetic hysteresis loops were shown to have a coercive field of 23.9 kA m-1 (300 G) and magnetization of 1000 kA m-1. The out-of-plane direction revealed enhanced coercive fields of 207 kA m-1 (2.6 kG) which was attributed to the shape anisotropy of column grains observed with electron microscopy. Angular dependence of the switching field showed that the magnetization reversal mechanism is governed by 180° domain wall pinning. In the thickness-dependent combinatorial study, co-sputtered composition spreads had a thickness ranging from 50 to 500 nm and (Fe70Co30)100-xVx compositions of x = 2-80. Comparison of high-throughput magneto-optical Kerr effect and traditional vibrating sample magnetometer measurements show agreement of trends in coercive fields across large composition and thickness regions.
