Repositorio Académico de la Universidad de Chile: Recent submissions

Now showing items 34701-34720 of 103154

    • Effects of preparation on catalytic, magnetic and hybrid micromotors on their functional features and ... 
      Báez Cornejo, Daniela; Ramos Peroni, Gabriel; Corvalán Aguilar, Alejandro; Cordero Garayar, María Luisa; Bollo Dragnic, Soledad; Kogan Bocian, Marcelo (Elsevier, 2020)
      Artificial micromotors evolve to improve multitasking performance in different research areas, and different power sources are combined to give rise to hybrid micromotors. Such combinations can alter physical features and ...
    • La expulsión judicial y las consecuencias de su incumplimiento en el ámbito de la ejecución penal. Una ... 
      Silva González, Abril Anais (Universidad de Chile, 2020)
      En el presente trabajo se desarrollará una crítica a la utilización del sistema penal como herramienta del control migratorio. Este fenómeno fue identificado y denominado el 2006 por la jurista Juliet Stumpf como ...
    • Experimental quantification of vertical stresses during gravity flow in block caving 
      Castro Ruiz, Raúl; Gómez, René; Pierce, Matthew; Canales, Juan (Elsevier, 2020)
      Usually in block and panel caving mines, when the caving connects to the surface, monitoring of vertical stresses over production drifts is minimal due to the low probability of seismic events. However, when the stresses ...
    • Harsh parenting during early childhood and child development 
      Berthelon, Matías; Contreras Guajardo, Dante; Kruger, Diana; Palma, María Isidora (Elsevier, 2020)
      We study the relationship between harsh parenting strategies, including psychological and physical aggressions that do not constitute abuse, on early childhood cognitive and socio-emotional development. We estimate a ...
    • Gold nanoparticle based double‑labeling of melanoma extracellular vesicles to determine the specificity of ... 
      Lara, Pablo; Palma Florez, Sujey; Salas Huenuleo, Edison; Polakovicova, Iva; Guerrero, Simón; Lobos González, Lorena; Campos, América; Muñoz, Luis; Jorquera Cordero, Carla; Varas Godoy, Manuel; Cancino, Jorge; Arias, Eloísa; Villegas, Jaime; Cruz, Luis J.; Albericio, Fernando; Araya, Eyleen; Corvalán, Alejandro H.; Quest, Andrew F. G.; Kogan Bocian, Marcelo (BMC, 2020)
      Background Extracellular vesicles (EVs) have shown great potential for targeted therapy, as they have a natural ability to pass through biological barriers and, depending on their origin, can preferentially accumulate at ...
    • Europa, ¿una ventana o un espejo? La intelectualidad autoritaria de Brasil ante los encantos del Viejo Mundo ... 
      Esteve Martí, Javier (Universidad de Alicante, 2020)
      Cuando en 1888 se abolió la esclavitud y en 1889 la República sustituyó al Imperio, parte de la intelectualidad del litoral meridional del Brasil creyó imaginar que estos cambios sólo eran el comienzo de un proceso de ...
    • Effects of a sugar-sweetened beverage tax on prices and affordability of soft drinks in Chile: A time series ... 
      Cuadrado Nahum, Cristóbal; Dunstan Escudero, Jocelyn; Silva Illanes, Nicolás; Mirelman, Andrew J.; Nakamura, Ryota; Suhrcke, Marc (Elsevier, 2020)
      Chile is one of several countries that recently implemented a fiscal policy to reduce soft drink (SD) intake and obesity. In 2014 the government increased the existing ad-valorem tax on high-sugar SD by 5% and decreased ...
    • Did North Atlantic cooling and freshening from 3.65–3.5 Ma precondition Northern Hemisphere ice sheet growth? 
      Karas, Cyrus; Khélifi, Nabil; Bahr, André; Naafs, Bernhard; Nürnberg, Dirk; Herrle, Jens O. (Elsevier, 2020)
      The North Atlantic Current (NAC) as part of the Atlantic Meridional Overturning Circulation (AMOC) is the major supplier of heat into the northern North Atlantic. Pliocene changes of AMOC strength were speculated to either ...
    • An unsupervised Hidden Markov Model-based system for the detection and classification of blue whale ... 
      Buchan, Susannah J.; Mahú Sinclair, Rodrigo; Wuth, Jorge; Balcazar Cabrera, Naysa; Gutiérrez, Laura; Neira, Sergio; Becerra Yoma, Néstor (Taylor & Francis, 2020)
      In this paper, we present an automatic method, without human supervision, for the detection and classification of blue whale vocalizations from passive acoustic monitoring (PAM) data using Hidden Markov Model technology ...
    • Amphetamine derivatives as Monoamine Oxidase Inhibitors 
      Reyes Parada, Miguel; Iturriaga Vásquez, Patricio; Cassels Niven, Bruce (Frontiers Media, 2020)
      Amphetamine and its derivatives exhibit a wide range of pharmacological activities, including psychostimulant, hallucinogenic, entactogenic, anorectic, or antidepressant effects. The mechanisms of action underlying these ...
    • Machine learning methods to support category management decisions in the retail industry 
      Aburto Lafourcade, Luis Alberto (Universidad de Chile, 2019)
      La introducción de herramientas de Machine Learning para resolver problemas de Big Data, han creado diversas oportunidades, en particular en la industrial del retail. Esta tesis está dividida en dos ensayos donde se usan ...
    • Alzheimer’s disease or behavioral variant frontotemporal dementia? Review of key points toward an accurate ... 
      Musa Salech, Gada; Slachevsky Chonchol, Andrea; Muñoz Neira, Carlos; Méndez, Carolina; Villagra Castro, Roque; González Billault, Christian; Ibáñez, Agustín; Hornberger, Michael; Lillo, Patricia (IOS Press, 2020)
      Alzheimer's disease (AD) and frontotemporal dementia (FTD) are the most common neurodegenerative early-onset dementias. Despite the fact that both conditions have a very distinctive clinical pattern, they present with an ...
    • Análisis a la justicia administrativa en Chile. Siete problemas actuales del contencioso administrativo en Chile 
      Guzmán Fuentes, Sebastián (Universidad de Chile, 2019)
      La justicia administrativa o la jurisdicción contenciosa administrativa, como suele denominarse clásicamente, es un tema que presenta características muy peculiares en el Derecho Administrativo Chileno. Ello producto de ...
    • Propuesta de modelo de madurez institucional para las iniciativas de datos abiertos de Gobierno de Chile 
      Neira Paredes, Braulio Nicolás (Universidad de Chile, 2019)
      El presente estudio se centra en la elaboración de un modelo de madurez para las iniciativas de datos abiertos de las instituciones del Gobierno de Chile. Este modelo identifica “Dimensiones”, “Variables” y “Niveles de ...
    • The economics of automated public transport: Effects on operator cost, travel time, fare and subsidy 
      Tirachini Hernández, Alejandro; Antoniou, Constantinos (Elsevier, 2020)
      It is currently unknown in which city environments, automated vehicles could be deployed at reasonable speeds, given safety concerns. We analytically and numerically assess the impact of automation for optimal vehicle size, ...
    • Single- versus double-injection costoclavicular block: a randomized comparison 
      Layera Ramos, Sebastián; Aliste Muñoz, Julián; Bravo Advis, Daniela; Fernández Mujica, Diego; García, Armando; Finlayson, Roderick; Tran, D. Q. (BMJ, 2020)
      Background The costoclavicular approach targets the brachial plexus in the proximal infraclavicular fossa, where the lateral, medial, and posterior cords are tightly bundled together. This randomized trial compared single- ...
    • Trypanosoma cruzi calreticulin: immune evasion, infectivity, and tumorigenesis 
      Ramírez Toloza, Galia; Sosoniuk Roche, Eduardo; Valck Calderón, Carolina; Aguilar Guzmán, Lorena; Ferreira, Viviana; Ferreira Vigouroux, Luis (Elsevier, 2020)
      To successfully infect, Trypanosome cruzi evades and modulates the host immune response. T. cruzi calreticulin (TcCalr) is a multifunctional, endoplasmic reticulum (ER)-resident chaperone that, translocated to the external ...
    • The importance of flow composition in real-time crash prediction 
      Basso Sotz, Franco; Basso Sotz, Leonardo; Pezoa, Raúl (Elsevier, 2020)
      Previous real-time crash prediction models have scarcely used data disaggregated by vehicle type such as light, heavy and motorcycles. Thus, little effort has been made to quantify the impact of flow composition variables ...
    • The rise and demise of plastic shopping bags in Chile - broad and informal coalition supporting ban as a ... 
      Amenábar Cristi, María; Holzapfel, Camila; Nehls, Medina; De Veer, Diamela; González, Camila; Holtmann, Geraldine; Honorato Zimmer, Daniela; Kiessling, Tim; Leyton Muñoz, Ailin; Narváez Reyes, Soledad; Núñez, Paloma; Sepúlveda, José Miguel; Vásquez, Nelson; Thiel, Martín (Elsevier, 2020)
      Single-use plastic bags (SUPBs) were introduced to society as a way to facilitate our daily lives, but due to their low post-use value they are found as litter in many different environments, from urban to rural and remote, ...
    • Further delineation of neuropsychiatric findings in Tatton-Brown-Rahman syndrome due to disease-causing ... 
      Tenorio, Jair; Alarcón Arias, Pablo; Arias, Pedro; Dapia, Irene; Garcia Minaur, Sixto; Bralo, María Palomares; Campistol, Jaume; Climent, Salvador; Valenzuela, Irene; Ramos, Sergio; Monseny, Antonio; Grondona, Fermina; Botet, Javier; Serrano, Mercedes; Solis, Mario; Santos Simarro, Fernando; Alvarez, Sara; Teixido Tura, Gisela; Jaen, Alberto; Gordo, Gema; Rivera, María Belén; Nevado, Julián; Hernández, Alicia; Cigudosa, Juan C.; Ruiz Pérez, Víctor; Tizzano, Eduardo; Lapunzina, Pablo (Nature, 2020)
      Tatton-Brown-Rahman (TBRS) syndrome is a recently described overgrowth syndrome caused by loss of function variants in the DNMT3A gene. This gene encodes for a DNA methyltransferase 3 alpha, which is involved in epigenetic ...