Browsing by Author "Saavedra, R."
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- ItemFactores asociados a bajo gradiente en estenosis aórtica severa con fracción de eyección preservada. Factors associated with low gradient in severe aortic valve stenosis with preserved ejection fraction(2017) Vega, Julián; Gabrielli, Luigi; Cordova, Samuel; Born, Pablo; Saavedra, R.; Mc-Nab Martin, Paul Andrew
- ItemFormation of hexagonal silicon carbide by high energy ion beam irradiation on Si(100) substrate(2007) Bhuyan, H.; Favre, M.; Valderrama, E.; Avaria, G.; Chuaqui, H.; Mitchell, I.; Wyndham, E.; Saavedra, R.; Paulraj, M.We report the investigation of high energy ion beam irradiation on Si (100) substrates at room temperature using a low energy plasma focus (PF) device operating in methane gas. The unexposed and ion exposed substrates were characterized by x-ray diffraction, scanning electron microscopy (SEM), photothermal beam deflection, energy-dispersive x-ray analysis and atomic force microscopy (AFM) and the results are reported. The interaction of the pulsed PF ion beams, with characteristic energy in the 60-450 keV range, with the Si surface, results in the formation of a surface layer of hexagonal silicon carbide. The SEM and AFM analyses indicate clear step bunching on the silicon carbide surface with an average step height of 50 nm and a terrace width of 800 nm.
- ItemRemodelado auricular derecho y niveles plasmáticos de Galectina-3 se relacionan con la capacidad funcional de pacientes con hipertensión arterial pulmonar(2016) Gabrielli, Luigi; Verdejo Pinochet, Hugo; Ocaranza, María Paz; Sepúlveda Varela, Pablo Andrés; Baraona Reyes, Fernando Exequiel; Salinas, Manuel; Saavedra, R.; Llevaneras, Silvana; Quiroga Lagos, Clara Rosa; Garayar Pulgar, Bernardita; Lavandero, Sergio; Castro Gálvez, Pablo Federico