Browsing by Title Artículos de revistas

Now showing items 667-686 of 898

    • Prácticas parentales y conductas de riesgo del peatón en una muestra de adolescentes chilenos 
      Herrera R., Andrea; Repetto, Paula B. (2014)
      Background: Traffic accidents are the second leading cause of death among adolescents and young adults in Chile. However, few studies have examined this behavior among this age group. Parental practices have a great ...
    • The Predictability from Skull Morphology of Temporalis and Masseter Muscle Cross-Sectional Areas in Humans 
      Toro Ibacache, Viviana; Zapata Muñoz, Víctor; O'Higgins, Paul (Wiley, 2015)
      To carry out functional simulations of the masticatory system that aim to predict strain magnitudes it is important to apply appropriate jaw-elevator muscle forces. Force magnitude estimation from directly measured muscle ...
    • Prediction of copper recovery from geometallurgical data using D-vine copulas 
      Addo, E.; Metcalfe, A. V.; Chanda, E. K.; Sepúlveda, E.; Assibey-Bonsu, W.; Adeli, A. (South African Institute of Mining and Metallurgy, 2019)
      The accurate modelling of geometallurgical data can significantly improve decision-making and help optimize mining operations. This case study compares models for predicting copper recovery from three indirect test ...
    • Premature Discontinuation of Randomized Trials in Critical and Emergency Care: A Retrospective Cohort Study 
      Schandelmaier, Stefan; Elm, Erik von; You, John J.; Bluemle, Anette; Tomonaga, Yuki; Lamontagne, Francois; Saccilotto, Ramón; Amstutz, Alain; Bengough, Theresa; Meerpohl, Joerg J.; Stegert, Mihaela; Olu, Kelechi K.; Tikkinen, Kari A. O.; Neumann, Ignacio; Carrasco Labra, Alonso; Faulhaber, Markus; Mulla, Sohail M.; Mertz, Dominik; Akl, Elie A.; Sun, Xin; Bassler, Dirk; Busse, Jason W.; Ferreira González, Ignacio; Nordmann, Alain; Gloy, Viktoria; Raatz, Heike; Moja, Lorenzo; Rosenthal, Rachel; Ebrahim, Shanil; Vandvik, Per O.; Johnston, Bradley C.; Walter, Martin A.; Burnand, Bernard; Schwenkglenks, Matthias; Hemkens, Lars G.; Cook, Deborah J.; Meade, Maureen O.; Bucher, Heiner C.; Kasenda, Benjamin; Briel, Matthias (Lippicott Williams & Wilkins, 2016)
      Objectives: Randomized clinical trials that enroll patients in critical or emergency care (acute care) setting are challenging because of narrow time windows for recruitment and the inability of many patients to provide ...
    • Premature senescence of T-cells favors bone loss during osteolytic diseases. A new concern in the osteoimmunology ... 
      González Ouna, Luis Gustavo; Sierra Cristancho, Alfredo José; Rojas Pérez, Carolina Isabel; Cafferata Chea, Emilio Alfredo; Melgar Rodríguez, Samanta Azucena; Cárdenas Gutiérrez, Angélica María; Vernal Astudillo, Rolando Marcelo (International Society on Aging and Disease, USA, 2021)
      Cellular senescence is a biological process triggered in response to time-accumulated DNA damage, which prioritizes cell survival over cell function. Particularly, senescent T lymphocytes can be generated prematurely during ...
    • Preparation and bioactive properties of nano bioactive glass and segmented polyurethane composites 
      Aguilar Perez, Fernando; Vargas Coronado, Rossana; Cervantes Uc, Jose; Cauich Rodriguez, Juan; Covarrubias Gallardo, Cristián; Yazdani-Pedram Zobeiri, Mehrdad (SAGE PUBLICATIONS, 2016)
      Composites of glutamine-based segmented polyurethanes with 5 to 25wt.% bioactive glass nanoparticles were prepared, characterized, and their mineralization potential was evaluated in simulated body fluid. Biocompatibility ...
    • Preparation of osteoinductive - antimicrobial nanocomposite scaffolds based on poly (D,L-lactide-co-glycolide) ... 
      Covarrubias Gallardo, Cristián; Bejarano Narváez, Julián; Maureira Vargas, Miguel; Tapia P., Cecilia; Díaz Dosque, Mario; Rodríguez Vives, Juan Pablo; Palza Cordero, Humberto; Lund Plantat, Fernando; Von Marttens Castro, Alfredo; Caviedes Fernández, Pablo; Yazdani-Pedram Zobeiri, Mehrdad (Sage, 2022)
      The aim of this study was to explore the preparation of porous nanocomposite scaffolds with simultaneous osteogenic - antibacterial properties by incorporating copper - doped bioactive glass nanoparticles into Poly ...
    • Presencia de Linfocitos T Reguladores en Periodontitis Crónica 
      Carré, L.; Franco Martínez, María Eugenia; Henríquez, L.; García Sesnich, Jocelyn; Dutzan Muñoz, Nicolás; Aguillón Gutiérrez, Juan Carlos; Gamonal Aravena, Jorge Antonio (Sociedad de Periodoncia de Chile., 2010-12)
      La enfermedad periodontal requiere de un hospedero susceptible para su desarrollo y progresión. Dentro de las características del hospedero se encuentra la respuesta T reguladora, que otorga tolerancia frente a antígenos ...
    • Prevalance of clinical attachment loss in adolescents in Santo Domingo, Dominican Republic 
      Collins, James; Carpio, Ana; Bobadilla, Mónica; Reyes, Raysa; Gúzman, Isabel; Martínez, Benjamín; Gamonal Aravena, Jorge (2005)
      Background: Data on periodontal conditions in adolescents in the Dominican Republic are scarce. The aim of the present crosssectional study was to estimate the prevalence of periodontal attachment loss among Dominican ...
    • Prevalence and predictors for clinical attachment loss in adolescents in Latin America: cross-sectional study 
      Morales, Alicia; Carvajal Pavez, Paola; Romanelli, Hugo; Gómez, Mariel; Loha, Cristina; Esper, María E.; Musso, Graciela; Ardila, Carlos M.; Duque, Andrés; Medina, Marco; Bueno, Luis; Andrade, Ernesto; Mendoza, Carolina; Gamonal Aravena, Jorge Antonio (Wiley & Sons, 2015)
      Aim: To describe the prevalence, severity and extension of clinical attachment loss (CAL) and to study the predictors in 15- to 19-year-old adolescents from high schools in the Latin America. Materials and Methods: A ...
    • Prevalence of Candida albicans and carriage of Candida non-albicans in the saliva of preschool children, ... 
      Lozano Moraga, Carla; Rodríguez Martínez, Gonzalo; Lefimil Puente, Claudia; Morales Bozo, Irene; Urzúa Orellana, Blanca (Taylor and Francis Ltd, 2017)
      Objective: This study was conducted to establish associations among the Candida carriage rate, the diversity of Candida species carried and the different caries status of preschool children. Materials and methods: Sixty-one ...
    • Prevalence of juvenile periodontitis in Chile 
      López, Néstor; Ríos, Verónica; Vallejos Pareja, Miguel; Fernández, Olaya (1991)
      The aim of this survey was to study the prevalence of juvenile periodontitis in schoolchildren aged 15-19 years in Santiago, Chile. A random sample of 2500 schoolchildren (1318 male, 1182 female) that represented the full ...
    • Prevalence of oral mucosal lesions in elderly people in Santiago, Chile 
      Espinoza Santander, Iris; Rojas, R.; Aranda, W.; Gamonal Aravena, Jorge Antonio (2003)
      BACKGROUND: Oral prevalence studies are important to know the state of health and the needs of treatment. Our aim was to determine the prevalence of oral mucosal lesions and associated factors among aging Chileans. METHODS: A ...
    • Prevalence of oral mucosal lesions in elderly people in Santiago, Chile. 
      Espinoza Santander, Iris; Rojas, R.; Aranda Chacón, Waldo; Gamonal Aravena, Jorge Antonio (Blacwell Munksgaard, 2003-11)
      Background:  Oral prevalence studies are important to know the state of health and the needs of treatment. Our aim was to determine the prevalence of oral mucosal lesions and associated factors among aging Chileans. Methods:  ...
    • Prevalence of oral pathologic findings in an ancient pre-Columbian archeologic site in the Atacama Desert 
      Meller, C.; Urzua, I.; Moncada, G.; Von Ohle, C. (2009)
      OBJECTIVE: To determine the prevalence of oral pathologic findings in an ancient culture that inhabited the Atacama Desert. MATERIALS AND METHODS: A systematic examination was performed on the remains of 83 individuals ...
    • Prevalence of periodontopathic bacteria in aggressive periodontitis patients in a Chilean population 
      Gajardo, Marta; Silva Steffens, Nora; Gómez, Leyla; León Berríos, Rubén; Parra, Beatriz; Contreras, Adolfo; Gamonal Aravena, Jorge Antonio (American Academy of Periodontology, 2005-02)
      Background: Actinobacillus actinomycetemcomitans is considered a major etiologic agent of aggressive periodontitis (AgP). Other periodontopathic bacteria such as Porphyromonas gingivalis are also suspected of participating ...
    • Prevalence, Characteristics, and Publication of Discontinued Randomized Trials 
      Kasenda, Benjamin; Von Elm, Erik; You, John; Blümle, Anette; Tomonaga, Yuki; Saccilotto, Ramón; Amstutz, Alain; Bengough, Theresa; Meerpohl, Joerg J.; Stegert, Mihaela; Tikkinen, Kari A. O.; Neumann, Ignacio; Carrasco Labra, Alonso; Faulhaber, Markus; Mulla, Sohail M.; Mertz, Dominik; Akl, Elie A.; Bassler, Dirk; Busse, Jason W.; Ferreira González, Ignacio; Lamontagne, Francois; Nordmann, Alain; Gloy, Viktoria; Raatz, Heike; Moja, Lorenzo; Rosenthal, Rachel; Ebrahim, Shanil; Schandelmaier, Stefan; Xin, Sun; Vandvik, Per O.; Johnston, Bradley C.; Walter, Martin A.; Burnand, Bernard; Schwenkglenks, Matthias; Hemkens, Lars G.; Bucher, Heiner C.; Guyatt, Gordon H.; Briel, Matthias (American Medical Association., 2014)
      IMPORTANCE The discontinuation of randomized clinical trials (RCTs) raises ethical concerns and often wastes scarce research resources. The epidemiology of discontinued RCTs, however, remains unclear. OBJECTIVES To ...
    • Prevalence, severity, and risk indicators of gingival inflammation in a multi-center study on South American ... 
      Carvajal Pavez, Paola; Gómez, Mariel; Gomes, Sabrina; Costa, Ricardo; Toledo, Andrés; Solanes Aguirre, Fernando; Romanelli, Hugo; Oppermann, Rui; Rosing, Casiano; Gamonal Aravena, Jorge Antonio (Faculdade De Odontologia De Bauru, 2016)
      Objectives: The aim of this study is to investigate the prevalence and severity of gingival, inflammation and associated risk indicators in South American adults. Material and Methods: Multi-stage samples totaling 1,650 ...
    • Prevalencia de caries y pérdida de dientes en población de 65 a 74 años de Santiago, Chile 
      Arteaga Herrera, Óscar; Urzúa Araya, Iván; Espinoza Santander, Iris; Muñoz Martínez, Andrea; Mendoza Van der Molen, Carolina Andrea (Sociedad de Periodoncia de Chile, Sociedad de Implantología Oral de Chile y Sociedad de Prótesis y Rehabilitación Oral de Chile., 2009-12)
      Objetivo: Medir prevalencia de caries y pérdida de dientes en adultos mayores de nivel socio-económico bajo y medio-bajo en Santiago, Chile. Métodos: Muestreo probabilístico estratificado, con criterio proporcional; muestra ...
    • Prevalencia de fisura labiopalatina e indicadores de riesgo: Estudio de la población atendida en el Hospital ... 
      Sepúlveda Troncoso, Gerson; Palomino Montenegro, Hernán; Cortés Araya, Juan Eliecer (Ergon, 2008-01)
      El estudio de la prevalencia de fisuras labiopalatinas y la determinación de indicadores de riesgo ayuda a prevenir su ocurrencia mejorando las condiciones durante la concepción o gestación. También favorece diagnósticos ...