Repositorio Académico de la Universidad de Chile: Recent submissions

Now showing items 18661-18680 of 98971

    • Proteogenomic analysis in an early onset diffuse gastric cancer patient revealed alterations in PIK3R1, ... 
      Córdova Delgado, Miguel Angel; Pinto, Mauricio P.; Pizarro, Gonzalo; Koch, Elard; Vargas, Cristian; Hernández, Mauricio; Nourdin, Guillermo; Saldivia, Pablo; Rodríguez Z., María Paz; Berkovits, Alejandro; Manque, Patricio; Rios, Juvenal A.; Garcia-Bloj, Benjamín; Garrido, Marcelo (AME Publishing Company, 2022)
      Background: Early-onset gastric cancers (EOGC) are poor prognosis hard-to treat malignancies that affect young individuals (<45 years old). Case Description: Herein we describe the case of a 26-year-old female EOGC patient ...
    • Probing the mechanical properties of porous nanoshells by nanoindentation 
      Valencia, Felipe J.; Aurora, Viviana; Rámirez González, Max Alberto; Ruestes, Carlos J.; Prada, Alejandro; Varas Barboza, Alejandro Javier; Rogan Castillo, José Antonio (MDPI, 2022)
      In this contribution, we present a study of the mechanical properties of porous nanoshells measured with a nanoindentation technique. Porous nanoshells with hollow designs can present attractive mechanical properties, as ...
    • Two sides of the same desert: floristic connectivity and isolation along the hyperarid coast and precordillera ... 
      Ruhm, Jonathan; Böhnert, Tim; Mutke, Jens; Luebert Bruron, Federico José; Montesinos Tubée, Daniel B.; Weigend, Maximilian (Frontiers Media, 2022)
      In this study we aim at refining our understanding of the floristic connectivity of the loma- and precordillera floras of southern Peru and northern Chile and the parameters determining vegetation cover in this region. We ...
    • UHPLC-MS metabolomic fingerprinting, antioxidant, and enzyme inhibition activities of himantormia lugubris ... 
      Areche Medina, Carlos Alberto; Romero Parra, Javier Hernán; Sepúlveda, Beatriz; García Beltrán, Olimpo; Simirgiotis, Mario J. (MDPI, 2022)
      Himantormia lugubris is a Chilean native small lichen shrub growing in the Antarctica region. In this study, the metabolite fingerprinting and the antioxidant and enzyme inhibitory potential from this species and its four ...
    • Cardioprotective antioxidant and anti-inflammatory mechanisms induced by intermittent hypobaric hypoxia 
      González Candia, Alejandro; Candia Henríquez, Alejandro Andrés; Paz, Adolfo; Mobarec Lubies, Fuad Cristóbal Rachid; Urbina Varela, Rodrigo; Campo, Andrea del; Herrera Videla, Emilio Augusto; Castillo Peñaloza, Rodrigo Luis (MDPI, 2022)
      More than 80 million people live and work (in a chronic or intermittent form) above 2500 masl, and 35 million live in the Andean Mountains. Furthermore, in Chile, it is estimated that 100,000 people work in high-altitude ...
    • Soluble free, esterified and insoluble-bound phenolic antioxidants from chickpeas prevent cytotoxicity in ... 
      Costa de Camargo, Adriano; Álvarez Larraín, Alina Concepción; Arias Santé, María Fernanda; Oyarzún, Juan Estebán; Andia, Marcelo E.; Uribe, Sergio; Núñez Pizarro, Paula; Bustos, Simón M.; Schwember, Andrés R.; Shahidi, Fereidoon; Bridi, Raquel (MDPI, 2022)
      Chickpeas are rich sources of bioactive compounds such as phenolic acids, flavonoids, and isoflavonoids. However, the contribution of insoluble-bound phenolics to their antioxidant properties remains unclear. Four varieties ...
    • Mitochondrial dysfunction and the glycolytic switch induced by caveolin-1 phosphorylation promote cancer ... 
      Díaz Valdivia, Natalia; Simón, Layla; Díaz, Jorge; Martínez Meza, Samuel; López Contreras, Pamela; Burgos Ravanal, Renato; Pérez, Viviana; Frei, Balz; Leyton Campos, Lisette; Quest, Andrew Frederick Geoffery (MDPI, 2022)
      Simple Summary Caveolin-1 (CAV1) is a membrane protein that has been attributed a dual role in cancer, acting at early stages as a tumor suppressor and in later stages of the disease as a promoter of metastasis. In the ...
    • Caracterización y regulación hormonal de las alfa-amilasas de Araucaria araucana (MOL)KOCH. 
      Acevedo Jones, Elba (Universidad de Chile, 1991)
      Las semillas de Araucaria araucana contienen almidón (61% de su peso seco) cuyo desdoblamiento y slntesis de sacarosa mantiene el crecimiento y desarrollo de la plántula hasta que ésta puede establecerse como planta ...
    • ATOMS: ALMA Three-millimeter Observations of Massive Star-forming Regions - X. Chemical differentiation ... 
      Peng, Yaping; Liu, Tie; Qin, Sheng-Li; Baug, Tapas; Liu, Hong-Li; Wang, Ke; Garay Brignardello, Guido Alejandro; Zhang, Chao; Chen, Long-Fei; Lee, Chang Won; Juvela, Mika; Li, Dalei; Tatematsu, Ken'ichi; Liu, Xun-Chuan; Lee, Jeong-Eun; Luo, Gan; Dewangan, Lokesh; Wu, Yue-Fang; Zhang, Li; Bronfman Aguilo, Leonardo Jaime; Ge, Jixing; Tang, Mengyao; Zhang, Yong; Xu, Feng-Wei; Wang, Yao; Zhou, Bing (Oxford, 2022)
      Investigating the physical and chemical structures of massive star-forming regions is critical for understanding the formation and the early evolution of massive stars. We performed a detailed line survey toward six dense ...
    • Detección de anticuerpos séricos contra avian avulavirus 17 y 18 en poblaciones de pingüinos de las Islas ... 
      Muñoz Sepúlveda, Vanina Verónica (Universidad de Chile, 2021)
      RESUMEN Las especies Avian avulavirus 17 y 18 (AVv17 y AVv18, respectivamente) son dos virus que se descubrieron y aislaron desde pingüinos Papúa en la Isla Kopaitic, Antártica el año 2017. Estos virus, pertenecen al ...
    • Type II supernovae from the Carnegie Supernova Project-I II. Physical parameter distributions from ... 
      Martínez, L.; Bersten, M. C.; Anderson, J. P.; Hamuy, M.; González Gaitán, S.; Forster Burón, Francisco; Orellana, M.; Stritzinger, M.; Phillips, M. M.; Gutiérrez, C. P.; Burns, C.; Contreras, C.; De Jaeger, T.; Ertini, K.; Folatelli, G.; Galbany, L.; Hoeflich, P.; Hsiao, E. Y.; Morrell, N.; Pessi, P. J.; Suntzeff, N. B. (EDP, 2022)
      Linking supernovae to their progenitors is a powerful method for furthering our understanding of the physical origin of their observed differences while at the same time testing stellar evolution theory. In this second ...
    • La espacialización de los cuidados. Entretejiendo relaciones de cuidado a través de la movilidad 
      Jirón Martínez, Paola Andrea; Solar Ortega, Macarena Isabel; Rubio Rubio, Maria Daniela; Cortés Morales, Susana Rina; Cid Aguayo, Beatriz Eugenia; Carrasco Montagna, Juan Antonio (Universidad de Chile Instituto de la Vivienda - INVI, 2022)
      Matters of care has been a relevant issue for several decades in feminist studies, particularly in relation to the power relations that have been built from their feminization, and the consequences they have had in all ...
    • Estudio de la participación de los receptores octopaminérgicos y muscarínicos de lóbuloantenal, en el ... 
      Leyton Miranda, Vicente Andrés (Universidad de Chile, 2018)
      La capacidad de descifrar señales de olores es fundamental en la vida de los animales, ya que les permite interactuar entre sí y generar recuerdos de entornos beneficiosos o peligrosos para su sobrevivencia. La organización ...
    • High intensity and red enriched LED lights increased the growth of lettuce and endive 
      Flores, Mónica; Urrestarazu, Miguel; Amorós, Asunción; Escalona Contreras, Víctor Hugo (PagePress, 2022)
      Changes in plant responses have been associated with different fractions of the visible spectrum and light intensity. Advances in light-emitting diodes (LED) have enabled the study of the effect of narrow wavelengths on ...
    • Pontic site development for fxed dental prostheses with and without soft tissue grafting: 1‑year results ... 
      Strauss Avendaño, Franz Josef; Huber, Brandon J.; Valdés, Ana; Jung, Ronald E.; Mühlemann, Sven; Thoma, Daniel S. (Springer, 2022)
      Aim To describe and compare the pontic site development for fixed-dental prostheses (FDPs) with and without soft tissue grafting up to one-year post insertion of FDPs. Materials and methods A convenience sample of 24 ...
    • Factores que influyen en el uso y prácticas de análisis de social media : sus efectos en desempeño organizacional 
      Maldonado Huentenao, Carol (Universidad de Chile, 2020)
      La forma de relacionarnos se ve afectada por los constantes avances tecnológicos y herramientas comunicacionales, que afectan igualmente al mundo empresarial modificando la forma en que las empresas y organizaciones se ...
    • Estructura comunitaria de helmintos parásitos de roedores simpratidos: Papel de factores filogenéticos y ecologicos 
      Cattan Ayala, Pedro Eduardo (Universidad de Chile, 1992)
      Uno de los problemas más importantes en el estudio de los ensambles comunitarios es encontrar patrones de estructura y los procesos que los determinan. Para el caso de helmintos parásitos, los ensambles multiespecificos ...
    • Vestigios 
      Cullen Espinoza, Brian Roberto (Universidad de Chile, 2018)
    • Identidades locales y paisajes comoditizados: experiencias turísticas en una comunidad atacameña, San Pedro ... 
      Alfaro Valenzuela, Gabriela (Universidad de Chile, 2020)
      La presente memoria es una investigación cualitativa de enfoque etnográfico que buscó reconocer el tránsito de los/as toconares/as en el vínculo identidad – lugar, a partir de la comoditización turística de los paisajes ...
    • Itata 
      Cortés Riquelme, Carlos Alberto (Universidad de Chile, 2022)
      La tesis consiste en la investigación documental acerca del naufragio del vapor Itata mediante un registro audiovisual que, en conjunto con el investigador Ricardo Bordones, se desarrolla por diez años y en la cual surge ...