Now showing items 1-20 of 5284

    • Phenomenological dynamics of COVID-19 pandemic: Meta-analysis for adjustment parameters 

      Hojman Guiñerman, Sergio; Asenjo, Felipe A. (American Institute of Physics, 2020)
      We present a phenomenological procedure of dealing with the COVID-19 (coronavirus disease 2019) data provided by government health agencies of 11 different countries. Usually, the exact or approximate solutions of ...
    • Sampling understory birds in different habitat types using point counts and camera traps 

      Fonturbel, Francisco E.; Rodríguez Gómez, Gloria B.; Fernández, Nerea; García, Benat; Orellana, José I.; Castaño-Villa, Gabriel J. (Elsevier, 2020)
      Point counts are widely used to assess bird diversity. However, this method has some limitations and can be affected by observer bias. For this reason, it is commonly complemented with other methods (e.g., mist-nets, sound ...
    • Quantum particles that behave as free classical particles 

      Hojman Guiñerman, Sergio; Asenjo, Felipe A. (American Physical Society, 2020)
      The existence of nonvanishing Bohm potentials, in the Madelung-Bohm version of the Schrodinger equation, allows for the construction of particular solutions for states of quantum particles interacting with nontrivial ...
    • Phenomenological dynamics of COVID-19 pandemic: Meta-analysis for adjustment parameters 

      Hojman Guiñerman, Sergio; Asenjo, Felipe A. (American Institute of Physics, 2020)
      We present a phenomenological procedure of dealing with the COVID-19 (coronavirus disease 2019) data provided by government health agencies of 11 different countries. Usually, the exact or approximate solutions of ...
    • Nutritional ecology and ecological immunology in degus: Does early nutrition affect the postnatal development of the immune function? 

      Ramírez Otárola, Natalia; Maldonado, Karin; Cavieres, Grisel; Bozinovic, Francisco; Sabat, Pablo (Wiley, 2021)
      Environmental conditions experienced by developing animals have an impact on the development and maturity of the immune system. Specifically, the diet experienced during early development influences the maintenance and ...
    • Graphene Oxide-ZnO Nanocomposites for Removal of Aluminum and Copper Ions from Acid Mine Drainage Wastewater 

      Rodríguez, Carolina; Tapia, Camila; Leiva Aravena, Enzo; Leiva, Eduardo (MDPI, 2020)
      Adsorption technologies are a focus of interest for the removal of pollutants in water treatment systems. These removal methods offer several design, operation and efficiency advantages over other wastewater remediation ...
    • Stability and robustness of asymptotic autocatalytic systems 

      Yun Cárcamo, Sohyoun; Carrasco Machado, Sebastián; Rogan Castillo, José; Correa Burrows, Paulina; Valdivia Hepp, Juan Alejandro (Nature, 2020)
      Here, we address the consequences of the extension in the space of a simple model of a system that is closed to efficient causation: the (M,R)-system model. To do so, we use a diffusion term to describe the collective ...
    • Assessment of intestinal parasites in the coexisting Bombus terrestris (Apidae) and Xylocopa augusti (Apidae) in central Chile 

      Fernández, Kiara; Alcaíno Gorman, Jennifer; Sepúlveda, Dionisia; Medel Contreras, Rodrigo (BMC, 2020)
      Bombus terrestris is a European bumblebee extensively commercialized worldwide for crop pollination. In Chile, this species was introduced in 1997 and after confinement escape, it has spread and established in several ...
    • Accounting for relatedness and spatial structure to improve plant phenotypic selection in the wild 

      Fontúrbel, Francisco E.; Ferrer, Pedro F.; Vega Retter, Caren; Medel Contreras, Rodrigo (Springer, 2020)
      Identifying natural selection in wild plant populations is a challenging task, as the reliability of selection coefficients depends, among other factors, on the critical assumption of data independence. While rarely examined, ...
    • A new approach to solve the one-dimensional Schrodinger equation using a wavefunction potential 

      Hojman Guiñerman, Sergio; Asenjo, Felipe A. (Elsevier, 2020)
      A new approach to find exact solutions to one-dimensional quantum mechanical systems is devised. The scheme is based on the introduction of a potential function for the wavefunction, and the equation it satisfies. We recover ...
    • Plasma Tau Variants Detected by a Novel Anti-Tau Monoclonal Antibody: A Potential Biomarker for Alzheimer’s Disease 

      González, Andrea; Guzmán Martínez, Leonardo; Maccioni Baraona, Ricardo (IOP Publishing, 2020)
      Background: A major drawback in Alzheimer's disease (AD) is the lack of validated biomarkers for routine clinical diagnostic. We have reported earlier a novel blood biomarker, named Alz-tau (R), based on variants of platelet ...
    • Paleolimnological reconstruction of the centennial eutrophication processes in a sub-tropical South American reservoir 

      Halac, S.; Mengo, L.; Guerra, Lucía; Lami, A.; Musazzi, S.; Loizeau, J. L.; Ariztegui, D.; Piovano, E.L. (Elsevier, 2020)
      Reservoirs hold a detailed record of the changes in the input of sediments and nutrients over decades to centuries. Paleolimnological multi-proxy analysis makes it possible to reconstruct baseline conditions to infer early ...
    • Tuning of conformational dynamics through evolution-based design modulates the catalytic adaptability of an extremophilic kinase 

      Zamora, Ricardo A.; Ramírez Sarmiento, César; Castro Fernández, Víctor; Villalobos, Pablo; Maturana, Pablo; Herrera Morandé, Alejandra; Komives, Elizabeth A.; Guixe, Victoria (American Chemical Society, 2020)
      Conformational flexibility plays a critical role in enzyme function and is a key aspect in transitions from an open to a closed state induced by substrate binding and product release. Psychrophilic enzymes display a high ...
    • Trypanosoma cruzi-infected triatomines and rodents co-occur in a coastal island of northern Chile 

      Campos Soto, Ricardo; Díaz Campusano, Gabriel; Quiroga, Nicol; Muñoz San Martín, Catalina; Rives Blanchard, Ninette; Torres Pérez, Fernando (Peerj Inc, 2020)
      Trypanosoma cruzi, the cause agent of Chagas disease, is transmitted mainly by blood-feeding insects of the subfamily Triatominae. The T. cruzi life cycle alternates between triatomines and mammalian hosts, excluding birds ...
    • Cryptic interactions revisited from ecological networks: Mosses as a key link between trees and hummingbirds 

      Fonturbel, Francisco E.; Cordero Osorio, Felipe Andrés; Riffo Donoso, Valentina; Carvallo, Gastón O.; Rydin, Hakan (Wiley, 2020)
      1. Ecological interactions are the glue of biodiversity, structuring communities and determining their functionality. However, our knowledge about ecological interactions is usually biased against cryptic interactions ...
    • Conyza bonariensisas an alternative host for Colletotrichum species in Argentina 

      Bonacci, M.; Formento, A. N.; Morales, M. C.; Orlando, Julieta; Ibáñez, F.; Sartori, M.; Etcheverry, M.; Nesci, A.; Barros, G. (Wiley, 2020)
      Aims: This study investigated the diversity of Colletotrichum isolates recovered from Conyza bonariensis leaves through the use of morphological characteristics, growth rate, carbon sources utilization and phylogenetic ...
    • Extrapair paternity in two populations of the socially monogamous Thorn-tailed Rayadito Aphrastura spinicauda (Passeriformes: Furnariidae) 

      Botero Delgadillo, Esteban; Quirici, Verónica; Poblete, Yanina; Ippi, Silvina; Kempenaers, Bart; Vásquez Salfate, Rodrigo (Wiley, 2020)
      Studies on extrapair paternity (EPP) are key to understanding the ecological and evolutionary drivers of variation in avian mating strategies, but information is currently lacking for most tropical and subtropical taxa. ...
    • Design of chitosan nanocapsules with Compritol 888 ATO® for imiquimod transdermal administration. Evaluation of their skin absorption by Raman Microscopy 

      Álvarez Figueroa, María Javiera; Narváez Araya, Daniela; Armijo Escalona, Nicolás; Carrasco Flores, Eduardo; González Aramundiz, José Vicente (Springer, 2020)
      Purpose Design imiquimod-loaded chitosan nanocapsules for transdermal delivery and evaluate the depth of imiquimod transdermal absorption as well as the kinetics of this absorption using Raman Microscopy, an innovative ...
    • Ecosystem services and ecosystem degradation: environmentalist’s expectation 

      Delgado Isasi, Luisa; Marín Briano, Víctor (Elsevier, 2020)
      In this article, we explore the connections between ecosystem degradation and ecosystem services. We discuss an operational definition of ecosystem degradation and applied it to the terrestrial ecosystem of Chiloe Island ...
    • COSORE: A community database for continuous soil respiration and other soil-atmosphere greenhouse gas flux data 

      Bond-Lamberty, Ben; Christianson, Danielle S.; Malhotra, Avni; Pennington, Stephanie C.; Sihi, Debjani; AghaKouchak, Amir; Anjileli, Hassan; Arain, M. Altaf; Armesto Zamudio, Juan; Ashraf, Samaneh; Ataka, Mioko; Baldocchi, Dennis; Black, Thomas Andrew; Buchmann, Nina; Carbone, Mariah S.; Chang, Shih-Chieh; Crill, Patrick; Curtis, Peter S.; Davidson, Eric A.; Desai, Ankur R.; Drake, John E.; El-Madany, Tarek S.; Gavazzi, Michael; Görres, Carolyn Monika; Gough, Christopher M.; Goulden, Michael; Gregg, Jillian; Gutiérrez del Arroyo, Omar; He, Jin-Sheng; Hirano, Takashi; Hopple, Anya; Hughes, Holly; Järveoja, Järvi; Jassal, Rachhpal; Jian, Jinshi; Kan, Haiming; Kaye, Jason; Kominami, Yuji; Liang, Naishen; Lipson, David; Macdonald, Catriona A.; Maseyk, Kadmiel; Mathes, Kayla; Mauritz, Marguerite; Mayes, Melanie A.; McNulty, Steve; Miao, Guofang; Migliavacca, Mirco; Miller, Scott; Miniat, Chelcy F.; Nietz, Jennifer G.; Nilsson, Mats B.; Noormets, Asko; Norouzi, Hamidreza; O’Connell, Christine S.; Osborne, Bruce; Oyonarte, Cecilio; Pang, Zhuo; Peichl, Matthias; Pendall, Elise; Pérez Quezada, Jorge; Phillips, Claire L.; Phillips, Richard P.; Raich, James W.; Renchon, Alexandre A.; Ruehr, Nadine K.; Sánchez Cañete, Enrique P.; Saunders, Matthew; Savage, Kathleen E.; Schrumpf, Marion; Scott, Russell L.; Seibt, Ulli; Silver, Whendee L; Sun, Wu; Szutu, Daphne; Takagi, Kentaro; Takagi, Masahiro; Teramoto, Munemasa; Tjoelker, Mark G.; Trumbore, Susan; Ueyama, Masahito; Vargas, Rodrigo; Varner, Ruth K.; Verfaillie, Joseph; Vogel, Christoph; Wang, Jinsong; Winston, Greg; Wood, Tana E.; Wu, Juying; Wutzler, Thomas; Zeng, Jiye; Zha, Tianshan; Zhang, Quan; Zou, Junliang (Wiley, 2020)
      Globally, soils store two to three times as much carbon as currently resides in the atmosphere, and it is critical to understand how soil greenhouse gas (GHG) emissions and uptake will respond to ongoing climate change. ...