Repositorio Académico de la Universidad de Chile: Recent submissions

Now showing items 30361-30380 of 98852

    • 3D Spatial exploration by E. Coli echoes motor temporal variability 
      Figueroa Morales, Nuris; Soto, Rodrigo; Junot, Gaspard; Darnige, Thierry; Douarche, Carine; Martínez, Vincent A.; Lindner, Anke; Clément, Éric (American Physical Society, 2020)
      Unraveling bacterial strategies for spatial exploration is crucial for understanding the complexity in the organization of life. Bacterial motility determines the spatiotemporal structure of microbial and controls infection ...
    • HD 213885b: a transiting 1-d-period super-Earth with an Earth-like composition around a bright (V=7.9) star ... 
      Espinoza, Néstor; Brahm, Rafael; Henning, Thomas; Jordan, Andrés; Dorn, Caroline; Rojas, Felipe; Sarkis, Paula; Kossakowski, Diana; Schlecker, Martin; Díaz, Matías R.; Jenkins, James S.; Aguilera Gomez, Claudia; Jenkins, Jon M.; Twicken, Joseph D.; Collins, Karen A.; Lissauer, Jack; Armstrong, David J.; Adibekyan, Vardan; Barrado, David; Barros, Susana C. C.; Battley, Matthew; Bayliss, Daniel; Bouchy, François; Bryant, Edward M.; Cooke, Benjamin F.; Demangeon, Olivier D. S.; Dumusque, Xavier; Figueira, Pedro; Giles, Helen; Lillo Box, Jorge; Lovis, Christophe; Nielsen, Louise D.; Pepe, Francesco; Pollacco, Don; Santos, Nuno C.; Sousa, Sergio G.; Udry, Stéphane; Wheatley, Peter J.; Turner, Oliver; Marmier, Maxime; Ségransan, Damien; Ricker, George; Latham, David; Seager, Sara; Winn, Joshua N.; Kielkopf, John F.; Hart, Rhodes; Wingham, Geof; Jensen, Eric L. N.; Helminiak, Krzysztof G.; Tokovinin, A.; Briceño, C.; Ziegler, Carl; Law, Nicholas M.; Mann, Andrew W.; Daylan, Tansu; Doty, John P.; Guerrero, Natalia; Boyd, Patricia; Crossfield, Ian; Morris, Robert L.; Henze, Christopher E.; Chacon, Aaron Dean (Oxford Unv Press, 2020)
      We report the discovery of the 1.008-d, ultrashort period (USP) super-EarthHD213885b (TOI141b) orbiting the bright (V= 7.9) star HD 213885 (TOI-141, TIC 403224672), detected using photometry from the recently launched TESS ...
    • Introduction to the special issue on the contested realities of the circular economy 
      Corvellec, Hervé; Böhm, Steffen; Stowell, Alison; Valenzuela Díaz, Francisco (Taylor & Francis, 2020)
    • Insights into the role of D-A-π-A type pro-aromatic organic dyes with thieno[3,4-b]pyrazine as A acceptor ... 
      Paredes Gil, Katherine; Páez Hernández, Dayán; Arratia Pérez, Ramiro; Mendizábal Emaldía, Fernando (Wiley, 2020)
      Time-dependent density functional theory (TD-DFT)/periodic DFT calculations were performed to determine the role of pro-aromatic organic D-A-pi-A type dyes (the NL1-NL17 family) with Thieno[3,4-b]pyrazine (Tpy) as A acceptor ...
    • USco1621 B and USco1556 B: two wide companions at the deuterium-burning mass limit in Upper Scorpius 
      Chinchilla, Patricia; Béjar, Víctor; Lodieu, Nicolás; Gauza, Bartos; Zapatero Osorio, María Rosa; Rebolo, Rafael; Pérez Garrido, Antonio; Álvarez, Carlos; Manjavacas, Elena (EDP Sciences, 2020)
      Aims. Our objective is to identify analogues of gas giant planets, but located as companions at wide separations of very young stars. The main purpose is to characterise the binarity frequency and the properties of these ...
    • Family business and local development in Iberoamerica 
      Gómez Mejía, Luis; Basco, Rodrigo; González, Ana Cristina; Muller Valenzuela, Claudio (Emerald Publishing, 2020)
    • Water markets and social-ecological resilience to water stress in the context of climate change: an analysis ... 
      Urquiza, Anahí; Billi, Marco (Springer, 2020)
      The paper proposes an analysis of the social-ecological resilience of the Limari Basin, an agriculture-intensive dryland in the north of Chile, featuring one of the most innovative market-based water managements and the ...
    • Widespread microbial mercury methylation genes in the global ocean 
      Villar, Emilie; Cabrol, Léa; Heimbürger-Boavida, Lars-Eric (Wiley, 2020)
      Methylmercury is a neurotoxin that bioaccumulates from seawater to high concentrations in marine fish, putting human and ecosystem health at risk. High methylmercury levels have been found in the oxic subsurface waters of ...
    • Use of fecal indices as a non-invasive tool for nutritional evaluation in extensive-grazing sheep 
      Orellana, Carla; Parraguez Gamboa, Víctor; Arana, Wilmer; Escanilla Cruzat, Juan; Zavaleta, Carmen; Castellaro, Giorgio (MDPI, 2020)
      Simple Summary To adequately manage ruminants in extensive grazing, it is important to have non-invasive techniques to evaluate their nutritional status. Some of these techniques are based on the use of fecal indicators, ...
    • Ultrafast domain wall propagation due to the interfacial Dzyaloshinskii-Moriya interaction 
      Mancilla Almonacid, D.; Jaeschke Ubiergo, R.; Núñez, A.; Allende, S. (IOP Publishing, 2020)
      It is shown that the interplay between curvature and interfacial Dzyalonshinsky-Moriya interaction (DMI) is a pathway to ultrafast domain wall (DW) dynamics in ferromagnetic nanotubes. In this work, we theoretically study ...
    • The ovarian transcriptome of reproductively aged multiparous mice: candidate genes for ovarian cancer protection 
      Urzúa, Ulises; Chacón, Carlos; Norambuena, Maximiliano; Lizama, Luis; Sarmiento, Sebastián; Asaki, Esther; Powell, John I.; Ampuero, Sandra (MDPI, 2020)
      In middle-aged women, the decline of ovarian follicle reserve below a critical threshold marks menopause, leading to hormonal, inflammatory, and metabolic changes linked to disease. The highest incidence and mortality of ...
    • Silvicultura en bosques nativos. Experiencias en silvicultura y restauración en Chile, Argentina y el oeste ... 
      Donoso H., Pablo; Promis Baeza, Álvaro; Soto, Daniel P. (The Chile Initiative, OSU College of Forestry, 2018)
      El presente libro corresponde a la segunda publicación de la serie Estudios en Silvicultura de Bosques Nativos, la que se inició el año 2013. Con esta serie de libros se pretende difundir, de manera periódica, avances en ...
    • An efficient optimization methodology of respiration rate parameters coupled with transport properties in ... 
      Badillo, Guillermo; Cumsille, Patricio; Segura Ponce, Luis; Pataro, Gianpiero; Ferrari, Giovanna (Taylor & Francis, 2020)
      In this study, we aimed to describe a modern, efficient, and reproducible methodology to optimize respiration rate parameters coupled with transport properties in mass balances describing Modified atmosphere packaging (MAP) ...
    • An integer programming method for the design of multi-criteria multi-action conservation plans 
      Álvarez Miranda, Eduardo; Salgado Rojas, Jose; Hermoso, Virgilio; García-Gonzalo, Jordi; Weintraub Pohorille, Andrés (Elsevier, 2020)
      The design of conservation management plans is a crucial task for ensuring the preservation of ecosys- tems. A conservation plan is typically embodied by two types of decisions: in which areas of a given territory it will ...
    • Buds of "Italia melhorada" grapevines grown under tropical conditions develop a quiescent state 
      Dantas, Debora; Bressan Smith, Ricardo; Noriega, Ximena; Pérez, Francisco (Elsevier, 2020)
      A double cropping system for the grapevine (Vitis vinifera L) has been commercially adopted for use in regions where the tropical climate is characterized by high temperatures and small variations in daylength throughout ...
    • Chondroinductive Alginate-Based Hydrogels Having Graphene Oxide for 3D Printed Scaffold Fabrication 
      Olate Moya, Felipe; Arens, Lukas; Wilhelmy von Wolff, Manfred; Mateos Timoneda, Miguel; Engel, Elisabeth; Palza Cordero, Humberto (American Chemical Society, 2020)
      Scaffolds based on bioconjugated hydrogels are attractive for tissue engineering because they can partly mimic human tissue characteristics. For example, they can further increase their bioactivity with cells. However, ...
    • A spectral dichotomy version of the nonautonomous Markus-Yamabe conjecture 
      Castañeda, Álvaro; Robledo Veloso, Gonzalo (Elsevier, 2020)
      In this article we introduce a nonautonomous version of the Markus-Yamabe conjecture from an exponential dichotomy spectrum point of view. We prove the validity of this conjecture for the scalar and triangular case. ...
    • A Deep Adversarial Approach Based on Multi-Sensor Fusion for Semi-Supervised Remaining Useful Life Prognostics 
      Verstraete, David; Droguett, Enrique; Modarres, Mohammad (MDPI, 2020)
      Multi-sensor systems are proliferating in the asset management industry. Industry 4.0, combined with the Internet of Things (IoT), has ushered in the requirements of prognostics and health management systems to predict the ...
    • Análisis de la factibilidad técnica de la implementación de algoritmos de diagnóstico de fallas en alternadores ... 
      Jaramillo Egaña, Samuel Gustavo (Universidad de Chile, 2019)
      Para una empresa es vital el poder predecir situaciones de riesgo, y anteponerse a ellas. Por lo general, dichas situaciones de peligro pueden producir grandes costos económicos. Tal es el caso de la industria minera, ...
    • Effect of second-sphere interactions on the magnetic anisotropy of lanthanide single-molecule magnets: ... 
      Gil Sánchez, Yolimar; LLanos, Leonel; Cancino Rivera, Patricio; Fuentealba Castro, Pablo; Vega, Andrés; Spodine Spiridonova, Evgenia; Aravena, Daniel (American Chemical Society, 2020)
      To study how second-sphere interactions affect single-molecule magnet (SMM) properties of mononuclear lanthanide systems, two dysprosium(III) complexes [Dy(N-NCS)(3)(H2O)(5)]center dot 0.45(KSCN)(18-crown-6) (1) and ...