Browsing by Author "Ruiz, M. "

Now showing 1 - 11 of 11
  • Thumbnail Image
    Item
    Arteterapia, ¿es efectiva en la esquizofrenia?
    (2017) Ruiz, M.; Aceituno Farías, David; Rada G., Gabriel
  • Thumbnail Image
    Item
    Eficacia y seguridad del tratamiento anticoagulante oral con antagonistas de vitamina K en pacientes con prótesis valvulares cardíacas
    (2014) Marín, A.; Neira, V.; Aizman, Andrés; Paredes, A.; Palma, S.; Ruiz, M.; Revello, J.; Zvaighaft, S.; Cea, C.; Corbalán Herreros, Ramón
    Introducción: Los pacientes con válvulas mecánicas cardíacas (VMC) representan una proporción significativa del total de pacientes que requieren anticoagulación. Sin embargo, hay pocos estudios que comparen la efectividad de la anticoagulación con distintos antagonistas de vitamina K (AVK). Objetivo: Comparar la efectividad y seguridad del tratamiento con warfarina y acenocumarol en pacientes con VMC. Métodos: Estudio observacional de pacientes en po-liclínico de anticoagulación UC sometidos a recambio valvular entre los años 2005 y 2013. Se estandarizó las dosis de AVK con software Isaza Hytwin Biostac 2.0. Se evaluaron registros de hemorragia mayor y menor (seguridad) y accidentes vasculares y embolías sistémicas (efectividad). La efectividad se analizó mediante el tiempo en rango terapéutico (TTR) con método de Ro-sendaal. Resultados: Se incluyó 365 pacientes con edad promedio de 64,1 ± 13,2 años, 53,9% de sexo femenino. El seguimiento promedio fue de 33,3 ± 18 meses; La mortalidad registrada fue 2,1%. El promedio de TTR fue 68 ± 13,3% (recambio aórtico TTR 66,1 ± 12,6%, recambio mitral TTR 65,8 ± 13,8% y recambio mitro-aórtico TTR 61,2 ± 12%). Acenocumarol presentó un TTR menor que warfarina (65,1 ± 13,1 vs. 71,2 ± 13,6, p = 0,001), sin aumento del riesgo de complicaciones. Conclusión:Aunque warfarina ofrece un mejor perfil de TTR, no existen diferencias significativas en la eficacia o seguridad al compararla con acenocumarol.
  • Thumbnail Image
    Item
    Experimental observations in compact capillary discharges
    (2008) Favre Domínguez, Mario; Wyndham, Edmund; Leñero Merchant, Ana María; Suzuki, F.; Valenzuela Ahumada, Julio César; Avaria Saavedra, Gonzalo Felipe; Ruiz, M.; Bhuyan, Heman; Chuaqui, Hernán; Choi, P.
  • Thumbnail Image
    Item
    Health protection among own account and platform workers during COVID19 in Chile. The PWR project
    (2022) Ruiz, M. ; Vives Vergara, Alejandra; Alvarez, V.; Diaz, I.; Zaupa, A.; CEDEUS (Chile)
    Background: In the last decades, non-standard employment has grown globally. Especially for own account workers (OAW), this implies the self-management of economic, health and other work-related risks. In the context of COVID19, this management was stressed by lockdowns and the novel health risks imposed by an unknown and highly contagious virus, demanding the incorporation of new knowledge and preventive actions. As part of a six-country multiple case qualitative study on non-standard workers (NSW), we explore their experiences and strategies deployed to protect their health while continuing to work. Methods: We performed 40 in-depth interviews to NSWs between October 2020 and February 2021, identified through the PWR online-survey and selected through an intentional sampling strategy according to levels of precarity (high-low), gender (male/female) and age (18-39/40-55). Interviews were analysed through abductive thematic analysis. Results: We observed a significant transfer to platform, Uber-like jobs in the delivery of goods during lockdown (n = 7). In the absence of institutional prevention programs and provision of protective equipment, OAWs (n = 13) refer the self-provision of COVID19 prevention to protect themselves and their families while continuing to work, deploying a series of strategies amidst limited understanding of both mode of transmission of the virus and actual effective preventive measures. This had serious consequences for them and their families, expressed in anguish, sense of lack of control, fear, and fragility in the face of a major health risk given their constant potential exposure to the virus, leading to both physical and mental health problems, as well as COVID19 infection. Conclusions: The substantial growth worldwide of gig delivery work during lockdowns magnified a pressing public health problem, critically requiring social security for gig and OAWs and the development of more equitable and accessible occupational health for all. Key messages: • Substantial growth worldwide of gig delivery work during lockdowns magnified a pressing public health problem.• Social security for gig and OAWs are critically required as well as the development of more equitable and accessible occupational health for all.
  • Thumbnail Image
    Item
    Hollow cathode effects in the pre-breakdown phase of a pulsed capillary discharge
    (2009) Avaria Saavedra, Gonzalo Felipe; Guzmán Olivos, Fernando Alfredo; Ruiz, M.; Favre Domínguez, Mario; Wyndham, Edmund; Bhuyan, Heman; Chuaqui, Hernán
  • Thumbnail Image
    Item
    How does informal employment impact population health? Lessons from the Chilean employment conditions survey
    (2017) Ruiz, M.; Vives Vergara, Alejandra; Martinez E., Julia; Benach, J. M.
  • Thumbnail Image
    Item
    Leptin Induces Oxidative Stress Through Activation of NADPH Oxidase in Renal Tubular Cells : Antioxidant Effect of L-Carnitine
    (2016) Blanca, A.; Ruiz, M.; Zambrano, S.; Salsoso Rodríguez, M. Rocío; Miguel, J.; Fortuno, A.; Revilla, E.; Mate, A.; Vazquez, C.
  • Thumbnail Image
    Item
    Optical emission spectroscopy observations of fast pulsed capillary discharge plasmas
    (2014) Avaria Saavedra, Gonzalo Felipe; Ruiz, M.; Guzmán Olivos, Fernando Alfredo; Favre Domínguez, Mario; Wyndham, Edmund; Chuaqui, Hernán; Bhuyan, Heman
  • Thumbnail Image
    Item
    Spectroscopic characterization of RF hydrocarbon plasmas for DLC coatings
    (2014) Guzmán, F.; Ruiz, M.; Valderrama, E.; Favre Domínguez, Mario; Bhuyan, Heman; Wyndham, Edmund; Chuaqui, Hernán
  • Thumbnail Image
    Item
    Surfing and marine conservation : Exploring surf-break protection as IUCN protected area categories and other effective area-based conservation measures
    (2019) Scheske, C.; Rodriguez, M.A.; Buttazzoni, J.E.; Strong-Cvetich, N.; Gelcich, Stefan; Monteferri, B.; Rodriguez, L.F.; Ruiz, M.
  • Thumbnail Image
    Item
    Why is quercetin a better antioxidant than taxifolin? Theoretical study of mechanisms involving activated forms
    (2013) Osorio, E.; Pérez Hernández, Edwin Gregorio; Areche, C.; Ruiz, M.; Cassels, B.; Flores, E.; Tiznado, W.