Repositorio Académico de la Universidad de Chile: Recent submissions

Now showing items 32601-32620 of 98076

    • Investigating the properties of stripped-envelope supernovae; what are the implications for their progenitors? 
      Prentice, S. J.; Ashall, C.; James, P. A.; Short, L.; Mazzali, P. A.; Bersier, D.; Crowther, P. A.; Barbarino, C.; Chen, T.-W.; Copperwheat, C. M.; Darnley, M. J.; Denneau, L.; Elias-Rosa, N.; Fraser, M.; Galbany, Lluis; Gal-Yam, A.; Harmanen, J.; Howell, D. A.; Hosseinzadeh, G.; Inserra , C.; Kankare, E.; Karamehmetoglu, E.; Lamb , G. P.; Limongi, M.; Maguire , K.; McCully , C.; Olivares, F.; Piascik, A. S.; Pignata, G.; Reichart, D. E.; Rest, A.; Reynolds , T.; Rodríguez , O.; Saario, J. L. O.; Schulze, S.; Smartt, S. J.; Smith, K. W.; Sollerman, J.; Stalder, B.; Sullivan, M.; Taddia, F.; Valenti, S.; Vergani, S. D.; Williams, S. C.; Young, D. R. (Oxford University Press, 2019)
      We present observations and analysis of 18 stripped-envelope supernovae observed during 2013-2018. This sample consists of five H/He-rich SNe, sixH-poor/He-rich SNe, three narrow lined SNe Ic, and four broad lined SNe Ic. ...
    • Does Patient-Specific Instrumentation Have a Higher Rate of Early Osteolysis Than Standard Referencing ... 
      Escudero, Mario I.; Symes, Michael; Bemenderfer, Thomas Bradford; Barahona, Maximiliano; Anderson, Robert; Davis, Hodges; Wing, Kevin J.; Penner, Murray J. (SAGE, 2020)
      INTRODUCTION: Patient-specific instrumentation (PSI) has been developed for total ankle arthroplasty (TAA), with proven benefits. One concern regarding PSI is the need for more soft tissue dissection in order to accurately ...
    • Morphometric Characterization of Asymmetric Mandibles Due to Condylar Hyperactivity 
      Espinosa, Sebastián; Rabanal, Carolina; Toro Ibacache, Viviana (Elsevier, 2019)
      Purpose: Mandibular asymmetry related to condylar hyperactivity (CH) presents a complex set of morphologic features that pose challenges for its correction. Using state-of-the-art morphometric techniques, this report ...
    • Estimation of Cardiovascular Relative Pressure Using Virtual Work-Energy 
      Marlevi, David; Ruijsink, Bram; Balmus, Maximilian; Dillon-Murphy, Desmond; Fovargue, Daniel; Pushparajah, Kuberan; Bertoglio, Cristóbal; Colarieti-Tosti, Massimiliano; Larsson, Matilda; Lamata, Pablo; Figueroa, C. Alberto; Razavi, Reza; Nordsletten, David A. (Nature Publishing Group, 2019)
      Many cardiovascular diseases lead to local increases in relative pressure, reflecting the higher costs of driving blood flow. The utility of this biomarker for stratifying the severity of disease has thus driven the ...
    • Cu Transport by the Extended Family of CcoA-like Transporters (CalT) in Proteobacteria 
      Zhang, Yang; Blaby-Haas, Crysten E.; Steimle, Stefan; Verissimo, Andreia F.; Garcia-Angulo, Victor A.; Koch, Hans Georg; Daldal, Fevzi; Khalfaoui-Hassani, Bahia (Nature Publishing Group, 2019)
      Comparative genomic studies of the bacterial MFS-type copper importer CcoA, required for cbb3-type cytochrome c oxidase (cbb3-Cox) biogenesis, revealed a widespread CcoA-like transporters (CalT) family, containing the ...
    • Mandibular bone loss after masticatory muscles intervention with botulinum toxin: An approach from basic ... 
      Balanta Melo, Julián; Toro Ibacache, Viviana; Kupczik, Kornelius; Buvinic, Sonja (MDPI AG, 2019)
      The injection of botulinum toxin type A (BoNT/A) in the masticatory muscles, to cause its temporary paralysis, is a widely used intervention for clinical disorders such as oromandibular dystonia, sleep bruxism, and aesthetics ...
    • Caffeic acid phenethyl ester protects against oxidative stress and dampens inflammation via heme oxygenase 1 
      Stähli, Alexandra; Maheen, Ceeneena Ubaidha; Strauss Avendaño, Franz; Eick, Sigrun; Sculean, Anton; Gruber, Reinhard (NLM (Medline), 2019)
      Periodontal disease is associated with chronic oxidative stress and inflammation. Caffeic acid phenethyl ester (CAPE), which is a potent inducer of heme oxygenase 1 (HO1), is a central active component of propolis, and ...
    • Desempeños en la calidad de explicaciones y argumentaciones en estudiantes chilenos de 8° básico 
      Figueroa, Javiera; Meneses, Alejandra; Chandía, Eugenio (Ediciones Universitarias de Valparaíso, 2019)
      La escritura es una tarea que conlleva una alta demanda cognitiva y lingüística, cuya dificultad se ve incrementada al momento de escribir textos académicos, por lo que los estudiantes deben aprender a utilizar el lenguaje ...
    • Enhancement of mechanical properties of metallic glass nanolaminates via martensitic transformation: atomistic ... 
      Amigo, Nicolás; Sepúlveda Macías, Matías; Gutiérrez Gallardo, Gonzalo (Elsevier, 2019)
      Metallic glasses with embedded crystalline phases have been experimentally reported to exhibit enhanced mechanical properties. To further explore this observation, we employed molecular dynamics simulations to study ...
    • Color regression and maintenance effect of intracoronal whitening on the quality of life: RCT—A one-year ... 
      Bersezio Miranda, Cristian; Ledezma Rojas, Paulina; Estay Larenas, Juan; Mayer, C.; Rivera, O.; Fernández Godoy, Eduardo (Indiana University School of Dentistry, 2019)
      Objective: This randomized clinical study evaluated two parameters: 1) the clinical color rebound of whitening patients’ tooth discoloration using thewalking bleaching technique and 2) the impact on psychological and ...
    • Oscillatory infrasonic modulation of the cochlear amplifier by selective attention 
      Dragicevic, Constantino; Marcenaro, Bruno; Navarrete, Marcela; Robles, Luis; Délano Reyes, Paul (Public Library of Science, 2019)
      Evidence shows that selective attention to visual stimuli modulates the gain of cochlear responses, probably through auditory-cortex descending pathways. At the cerebral cortex level, amplitude and phase changes of neural ...
    • Genetic determinants of BMI from early childhood to adolescence: the Santiago Longitudinal Study 
      Justice, A. E.; Chittoor, G.; Blanco, E.; Graff, M.; Wang, Y.; Albala Brevis, Cecilia; Santos, J. L.; Angel, B.; Lozoff, B.; Voruganti, V. S.; North, K. E.; Gahagan, S. (John Wiley, 2019)
      Background: While the genetic contribution to obesity is well established, few studies have examined how genetic variants influence standardized body mass index Z-score (BMIz) in Hispanics/Latinos, especially across ...
    • Brucella canis induces canine CD4 + T cells multi-cytokine Th1/Th17 production via dendritic cell activation 
      Pujol, Myriam; Borie Polanco, Consuelo; Montoya, María; Ferreira, Arturo; Vernal Astudillo, Rolando (Elsevier, 2019)
      Brucella canis is a small intracellular Gram-negative bacterium that frequently leads to chronic infections highly resistant to antibiotic therapy in dogs. Also, it causes mild human brucellosis compared to other zoonotic ...
    • A fast hybrid reinforcement learning framework with human corrective feedback 
      Celemin, Carlos; Ruiz del Solar, Javier; Kober, Jens (Springer, 2019)
      Reinforcement Learning agents can be supported by feedback from human teachers in the learning loop that guides the learning process. In this work we propose two hybrid strategies of Policy Search Reinforcement Learning ...
    • Relationship between Nostril, Nasal Valve and Minimal Cross-Sectional Area in Functional Upper Airway 
      Fariña Sirandoni, Rodrigo; González Rocabado, Andrea; Toledo Pinto, Ximena; Villanueva, Rodrigo; Martínez, Benjamín; Pérez, Hernán (Lippincott Williams and Wilkins, 2019)
      PURPOSE: To propose a three-dimensional cephalometric analysis of upper airway (UA) related to its functionality, defining normal reference values in healthy individuals and the relationship between nostril, nasal valve, ...
    • Impact of smoking on gingival inflammation in representative samples of three South American cities 
      Rösing, Cassiano Kuchenbecker; Gomes, Sabrina Carvalho; Carvajal Pavez, Paola; Gómez, Mariel; Costa, Ricardo; Toledo, Andrés; Solanes, Fernando; Romanelli, Hugo; Gamonal Aravena, Jorge Antonio; Oppermann, Rui Vicente (NLM (Medline), 2019)
      The aim of this study was to investigate the impact of smoking on gingival inflammation in a representative sample of 1,650 adults from Santiago (Chile), Porto Alegre (Brazil), and Tucumán (Argentina). A questionnaire ...
    • Sinoviortesis con radioisótopos en hemofilia: Experiencia de un centro en Chile 
      Soto, Verónica; Morales, María Mercedes; Morales, Patricio; Oyarzún, Andrés; Cortez, Daniela; González, Macarena (Sociedad Médica de Santiago, 2019)
      Background: In patients with hemophilia, radionuclide synoviorthesis, or the intra-articular injection of a radionuclide to decrease the synovial hypertrophy tissue, aims to decrease or avoid hemarthrosis. Aim: To evaluate ...
    • One-year bleaching efficacy using two HP products with different pH: A double-blind randomized clinical trial 
      Bersezio Miranda, Cristian; Martín Casielles, Javier; Prieto, María V.; Meneses, Pablo; Ángel Aguirre, Pablo; Fernández, G. Eduardo; Loguercio, Alessandro (Blackwell, 2019)
      Objectives: This split-mouth, double-blind, randomized clinical trial evaluated the 1-year bleaching efficacy produced by two hydrogen peroxide gels with different pHs. Materials and Methods: Twenty-eight patients were ...
    • Changes in understanding of painful temporomandibular disorders: The history of a transformation 
      Skármeta, Nicolás Patricio; Pesce, Maria Cecilia; Saldivia, Josefina; Espinoza Mellado, Paula; Montini, Francisca; Sotomayor, Claudio (Quintessence Publishing, 2019)
      Objective:The understanding the etiology of painful temporomandibular disorders (TMD) has evolved over the last eight decades. Evidence-based systematic research had questioned historical concepts and abandoned preconceived ...
    • Zinc oxide and copper nanoparticles addition in universal adhesive systems improve interface stability on ... 
      Gutiérrez, Mario Felipe; Bermúdez, Jorge; Dávila Sánchez, Andrés; Alegría Acevedo, Luisa; Méndez Bauer, Luján; Hernández, Marcela; Astorga, Jessica; Reis, Alessandra; Loguercio, Alessandro D.; Farago, Paulo V.; Fernández Godoy, Eduardo (Elsevier, 2019)
      This study evaluated the MMP inhibition of the zinc oxide and copper nanoparticles (ZnO/CuNp), and the effects of their addition into adhesives on antimicrobial activity (AMA), ultimate tensile strength (UTS), in vitro ...