Repositorio Académico de la Universidad de Chile: Recent submissions

Now showing items 26781-26800 of 98129

    • A low-mass stellar companion to the young variable star RZ Psc 
      Kennedy, Grant M.; Ginski, Christian; Kenworthy, Matthew A.; Benisty, Myriam; Henning, Thomas; van Holstein, Rob G.; Kral, Quentin; Ménard, Francois; Milli, Julien; Quiroga Núñez, Luis Henry; Rab, Christian; Stolker, Tomas; Sturm, Ardjan (Oxford, 2020)
      RZ Psc is a young Sun-like star with a bright and warm infrared excess that is occasionally dimmed significantly by circumstellar dust structures. Optical depth arguments suggest that the dimming events do not probe a ...
    • A Multi-resolution Approximation for Time Series 
      Sánchez, Heider; Bustos Cárdenas, Benjamín (Springer, 2020)
      Time series is a common and well-known way for describing temporal data. However, most of the state-of-the-art techniques for analysing time series have focused on generating a representation for a single level of resolution. ...
    • A spectral algorithm to simulate nonstationary random fields on spheres and multifractal star-shaped random sets 
      Emery, Xavier; Alegría, Alfredo (Springer, 2020)
      An extension of the turning arcs algorithm is proposed for simulating a random field on the two-dimensional sphere with a second-order dependency structure associated with a locally varying Schoenberg sequence. In particular, ...
    • Adsorption-desorption of trace elements in sediments of the Maipo river basin 
      Copaja Castillo, Sylvia; Mauro, Lidia; Vega Retter, Caren; Véliz Baeza, David (Soc Chilena Química, 2020)
      We studied the adsorption-desorption of Cu, Mn, Pb and Zn in Maipo river basin, one of the most perturbed rivers in Chile, and thus determined its tolerance to the addition of these metals into the sediments and the ...
    • Anthropometry, body shape in early-life and risk of premenopausal breast cancer among Latin American women: ... 
      His, Mathilde; Biessy, Carine; Torres Mejía, Gabriela; Ángeles Llerenas, Angélica; Alvarado Cabrero, Isabel; Sánchez, Gloria Inés; Borrero, Mauricio; Porras, Carolina; Rodríguez, Ana Cecilia; Garmendia Miguel, María Luisa; Olivier, Magali; Porter, Peggy L.; Lin, MingGang; Gunter, Marc J.; Romieu, Isabelle; Rinaldi, Sabina (Nature, 2020)
      Cumulating evidence in Caucasian women suggests a positive association between height and premenopausal breast cancer risk and a negative association with overall adiposity; however data from Latin America are scarce. We ...
    • Antigenic characterization of novel H1 influenza A viruses in swine 
      Tapia, Rodrigo; Torremorell, Montserrat; Culhane, Marie; Medina, Rafael; Neira Ramírez, Víctor (Nature, 2020)
      Novel H1N2 influenza A viruses (IAVs) in swine have been identified in Chile co-circulating with pandemic H1N1 2009-like (A(H1N1)pdm09-like) viruses. The objective of this study was to characterize antigenically the swine ...
    • Archaeometric analysis of ceramic production in Tiwanaku state (c.500-1000ce): An exploratory study 
      Ogalde, J. P.; Korpisaari, A.; Riera Soto, C.; Arriaza, B.; Paipa, C.; Leyton, P.; Campos Vallette, M.; Lara, N.; Chacama, J. (Wiley, 2020)
      The chemical and mineralogical characterization of seven ceramic fragments produced within Tiwanaku state (c.500-1000 ce) is reported. The instrumental techniques used included X-ray elemental and mineralogical chemical ...
    • Assessing surgical anesthesia for shoulder surgery 
      Aliste Muñoz, Julián; Cristi Sánchez, Iver; Bermúdez, Loreley; Layera Ramos, Sebastián; Prieto Bravo, Daniela; Tran, De Q.H. (BMJ, 2020)
    • Educación libertaria. Diseño de una didáctica teatral en, para y por la libertad 
      Valdés Vergara, Juan Gabriel (Universidad de Chile, 2020-09)
      A partir de una revisión bibliográfica, la presente investigación tiene el objetivo de responder las siguientes preguntas: ¿Cuáles son los conceptos claves que deben ser rescatados para diseñar una didáctica en una pedagogía ...
    • Radiopacidad de materiales restauradores aplicados en restauraciones simuladas 
      Vilches San Martín, Paulina Belén (Universidad de Chile, 2018)
      Introducción: Los materiales de restauración utilizados en odontología presentan una amplia gama de radiodensidades, los cuales deben ser diferentes a las del esmalte y dentina, para que sea posible su diferenciación en ...
    • La facultad de aumentar el capital por parte de la administración en una sociedad por acciones 
      Arraiza Mora, Camilo Ignacio (Universidad de Chile, 2020)
    • Changes in the physiological activity and the expression of neurotransmitters in the retinal ganglion cells ... 
      Araya, Joaquín; Palacios, Adrián; Durán Aniotz, Claudia; Escobar, María José; Acosta, Mónica; Chacón, Max; Neira, David; Shivashankar, Gagan; Bello, Felipe (Association for Research in Vision and Ophthalmology, 2020)
    • Brain to brain coupling in the gamma band as a marker of shared intentionality 
      Barraza Rodríguez, Paulo; Pérez, Alejandro; Rodríguez, Eugenio (Frontiers Media, 2020)
      Cooperation and competition are two ways of social interaction keys to life in society. Recent EEG-based hyperscanning studies reveal that cooperative and competitive interactions induce an increase in interbrain coupling. ...
    • Altered phobic reactions in frontotemporal dementia: A behavioural and neuroanatomical analysis 
      Jiménez Fernández, Daniel; Bond, Rebecca L.; Requena Komuro, Mai-Carmen; Sivasathiaseelan, Harri; Marshall, Charles R.; Russell, Lucy L.; Greaves, Caroline; Moore, Katrina M.; Woollacott, Ione O. C.; Shafei, Rachelle; Hardy, Chris J.D.; Rohrer, Jonathan D.; Warren, Jason D. (Elsevier, 2020)
      Introduction: Abnormal behavioural and physiological reactivity to emotional stimuli is a hallmark of frontotemporal dementia (FTD), particularly the behavioural variant (bvFTD). As part of this repertoire, altered phobic ...
    • Hereditary diffuse gastric cancer: updated clinical practice guidelines 
      Blair, Vanessa R; McLeod, Maybelle; Carneiro, Fátima; Coit, Daniel G.; D'Addario, Johanna L.; van Dieren, Jolanda M.; Harris, Kirsty L.; Hoogerbrugge, Nicoline; Oliveira, Carla; van der Post, Rachel S.; Arnold, Julie; Benusiglio, Patrick R.; Bisseling, Tanya M.; Boussioutas, Alex; Cats, Annemieke; Charlton, Amanda; Chelcun Schreiber, Karen E.; Davis, Jeremy L.; di Pietro, Massimiliano; Fitzgerald, Rebecca C.; Ford, James M.; Gamet, Kimberley; Gullo, Irene; Hardwick, Richard H.; Huntsman, David G.; Kaurah, Pardeep; Kupfer, Sonia S.; Latchford, Andrew; Mansfield, Paul F.; Nakajima, Takeshi; Parry, Susan; Rossaak, Jeremy; Sugimura, Haruhiko; Svrcek, Magali; Tischkowitz, Marc; Ushijima, Toshikazu; Yamada, Hidetaka; Yang, Han-Kwang; Claydon, Adrian; Figueiredo, Joana; Paringatai, Karyn; Seruca, Raquel; Bougen-Zhukov, Nicola; Brew, Tom; Busija, Simone; Carneiro, Patricia; DeGregorio, Lynn; Fisher, Helen; Gardner, Erin; Godwin, Tanis D.; Holm, Katharine N.; Humar, Bostjan; Lintott, Caroline J.; Monroe, Elizabeth C.; Muller, Mark D.; Norero, Enrique; Nouri, Yasmin; Paredes, Joana; Sanches, João M.; Schulpen, Emily; Ribeiro, Ana S.; Sporle, Andrew; Whitworth, James; Zhang, Liying; Reeve, Anthony E.; Guilford, Parry (Elsevier, 2020)
      Hereditary diffuse gastric cancer (HDGC) is an autosomal dominant cancer syndrome that is characterised by a high prevalence of diffuse gastric cancer and lobular breast cancer. It is largely caused by inactivating germline ...
    • Deciphering DDX3X Syndrome to Capture Determinants of Intellectual Disability 
      Ung, Devina; Boitnott, Andrea; Mendonca, Danielle; Niblo, Kristi; Soto Rifo, Ricardo; Drapeau, Elodie; Buxbaum, Joseph D.; Rasin, Roko-Mladen; De Rubeis, Silvia (Elsevier, 2020)
    • Interannual and seasonal variability of snow depth scaling behavior in a subalpine catchment 
      Mendoza Zúñiga, Pablo; Musselman, Keith N.; Revuelto, Jesús; Deems, Jeffrey S.; López Moreno, J. Ignacio; McPhee, James (American Geophysical Union, 2020)
      Understanding and characterizing the spatial distribution of snow are critical to represent the energy balance and runoff production in mountain environments. In this study, we investigate the interannual and seasonal ...
    • Size dependent magnetic and capacitive performance of MnFe2O4 magnetic nanoparticles 
      Arun, Thirumurugan; Kumar, T. Kavin; Udayabhaskar, R.; Morel, Mauricio J.; Rajesh, G.; Mangalaraja, R. V.; Akbari Fakhrabadi, Ali (Elsevier, 2020)
      MnFe2O4 magnetic nanoparticles (MNPs) are prepared by simple chemical oxidation method with optimized experimental conditions. The particle size is reduced by introducing the ferric ions as a size reducing agent during the ...
    • Evaluación clínica de resinas compuestas con márgenes defectuosos sellados con resina fluida o sellante ... 
      González Aravena, Diana F. Diana F. (Universidad de Chile, 2018)
      Introducción: El recambio de restauraciones se ha vuelto la mayor parte de la práctica habitual del odontólogo general. Este escenario exige buscar nuevas alternativas de tratamiento que reduzcan el tiempo operatorio y ...
    • Garantía de no autoincriminación y privilegios de no declarar en el derecho penal: legislación chilena y ... 
      Riquelme Reyes, Carla Francisca (Universidad de Chile, 2019)
      En el presente trabajo se tratarán dos de las principales garantías que encontramos en el juicio penal con la finalidad de resguardar a quienes intervienen en él, ya que sus derechos se encuentran en peligro. Así, la primera ...