Now showing items 101-120 of 4968

    • Miranda Quintana, Ramón Alain; Heidar-Zadeh, Farnaz; Fias, Stijn; Chapman, Allison E. A.; Liu, Shubin; Morell, Christophe; Gómez, Tatiana; Cardenas Valencia, Carlos Alberto; Ayers, Paul W. (Frontiers Media, 2022)
      Reactivity descriptors indicate where a reagent is most reactive and how it is most likely to react. However, a reaction will only occur when the reagent encounters a suitable reaction partner. Determining whether a pair ...
    • Botto Mahan, Carezza Veronica; Correa, Juana P.; Araya Donoso, Raúl; Farías Pizarro, Francisca Javiera; San Juan C., Esteban; Quiroga, Nicol; Campos Soto, Ricardo; Reyes Olivares, Claudio; González Acuña, Daniel (Centers Disease Control & Prevention, 2022)
      We assessed 4 lizard species in Chile for Trypanosoma cruzi, the causative agent of Chagas disease, and 1 species for its ability to transmit the protozoan to uninfected kissing bugs. All lizard species were infected, and ...
    • Vargas, Leonardo; Valdivieso Berríos, Nicolás Alejandro; Tempio, Fabián; Simon Zegers, María Valeska; Sauma Mahaluf, Daniela Macarena; Valenzuela Pérez, Lucía Teresita; Beltrán Muñoz, Caroll Jenny; Castillo Delgado, Loriana Cecilia; Contreras Benavides, Ximena Stella; Acevedo Acevedo, Mónica Loreto; Acevedo, Johanna; González, Rafael I.; Valiente Echeverría, Fernando Andres; Soto Rifo, Ricardo Andrés; Rosemblatt Silber, Mario César; López Nitsche, Mercedes Natalia; Osorio Olivares, Fabiola Beatriz; Bono Merino, María Rosa (BMC, 2022)
      Background Chile was severely affected by COVID19 outbreaks but was also one of the first countries to start a nationwide program to vaccinate against the disease. Furthermore, Chile became one of the fastest countries to ...
    • Cornejo Campos, Jaqueline; Gómez Aguirre, Yenny Adriana; Velázquez Martínez, José Rodolfo; Ramos Herrera, Oscar Javier; Chávez Murillo, Carolina Estefanía; Cruz Sosa, Francisco; Areche Medina, Carlos Alberto; Cabañas García, Emmanuel (MDPI, 2022)
      Acanthocereus tetragonus (L.) Hummelinck is used as an alternative food source in some Mexican communities. It has been shown that the young stems of A. tetragonus provide crude protein, fiber, and essential minerals for ...
    • Soteres, Rodrigo L.; Sagredo, Esteban A.; Kaplan, Michael R.; Martin, Mateo A.; Moreno Moncada, Patricio Iván; Reynhout, Scott Andrew; Schwartz, Roseanne; Schaefer, Joerg M. (Nature, 2022)
      The Last Glacial Termination (T1) featured major changes in global circulation systems that led to a shift from glacial to interglacial climate. While polar ice cores attest to an antiphased thermal pattern at millennial ...
    • Astorga, Marcela P.; Valenzuela, Andrea; Segovia, Nicolás I.; Poulin, Elie Albert; Vargas Chacoff, Luis; González Wevar, Claudio A. (Frontiers Media, 2022)
      Galaxias species are interesting biogeographic models due to their distribution and different types of life cycles, with migratory and landlocked populations. To obtain a better understanding of the genetic consequences ...
    • 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 ...
    • 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 ...
    • Molina Reyes, Emiliano; Cataldo, Vicente F.; Eggers, Cristián; Muñoz Madrid, Valentina Elisa; Glavic Maurer, Alvaro Alberto (Frontiers Media, 2022)
      Cells extend membrane protrusions like lamellipodia and filopodia from the leading edge to sense, to move and to form new contacts. The Arp2/3 complex sustains lamellipodia formation, and in conjunction with the actomyosin ...
    • Muñoz Gálvez, Víctor Hugo; Flández Guerrero, Eduardo (MDPI, 2022)
      In this paper, we study solar magnetic activity by means of a complex network approach. A complex network was built based on information on the space and time evolution of sunspots provided by image recognition algorithms ...
    • Fontúrbel, Francisco E.; Franco, Lida M.; Bozinovic, Francisco; Quintero Galvis, Julián F.; Mejías, Carlos; Amico, Guillermo C.; Vázquez, M. Soledad; Sabat, Pablo; Sánchez Hernández, Juan C.; Watson, David M.; Sáenz Agudelo, Pablo; Nespolo, Roberto F. (Wiley, 2022)
      The arboreal marsupial monito del monte (genus Dromiciops, with two recognized species) is a paradigmatic mammal. It is the sole living representative of the order Microbiotheria, the ancestor lineage of Australian marsupials. ...
    • Vilaseca, Carolina; Pinto, Carlos F.; Órdenes Claveria, Rodrigo; Laroze, David; Méndez Torres, Marco Antonio; Benítez, Hugo A. (MDPI, 2022)
      Fluctuating asymmetry (FA) is a morphometric tool used to measure developmental instability in organisms which have been exposed to stress or other adverse conditions. Phenotypic variability in response to stressors are ...
    • Fierro, Francisco; Vaca Cerezo, Inmaculada; Castillo, Nancy I.; Ovidio García-Rico, Ramón; Chávez, Renato (MDPI, 2022)
      The discovery of penicillin entailed a decisive breakthrough in medicine. No other medical advance has ever had the same impact in the clinical practise. The fungus Penicillium chrysogenum (reclassified as P. rubens) has ...
    • Gil Durán, Carlos; Sepúlveda, Romina V.; Rojas, Maximiliano; Castro Fernández, Víctor Hugo; Guixe Leguia, Victoria; Vaca Cerezo, Inmaculada; Levicán, Gloria; González Nilo, Fernando; Ravanal, María Cristina; Chávez, Renato (MDPI, 2022)
      Endoxylanases belonging to family 10 of the glycoside hydrolases (GH10) are versatile in the use of different substrates. Thus, an understanding of the molecular mechanisms underlying substrate specificities could be very ...
    • Rojas, Pablo; Pardo, Rodrigo; Vila Pinto, Irma del Carmen (Taylor & Francis, 2021)
      Two genera of fish, Orestias (Cyprinodontidae) and Trichomycterus (Trichomicteridae), inhabit in the Lauca National Park, UNESCO Biosphere Reserve, located at the Andes highlands in northern Chile. The present study ...
    • Martín, Fernanda Andrea; Pastén Guzmán, Denisse (MDPI, 2022)
      Studies from complex networks have increased in recent years, and different applications have been utilized in geophysics. Seismicity represents a complex and dynamic system that has open questions related to earthquake ...
    • Cretton, Sylvian; Genta Jouve, Gregory; Kaiser, Marcel; Mäser, Pascal; Muñoz, Orlando; Bürgi, Thomas; Cuendet, Muriel; Christen, Philippe (Elsevier, 2021)
      Chemical investigation of the alkaloid extract of the aerial parts of Schizanthus tricolor led to the targeted isolation of 26 hygroline derivatives of which 20 were fully characterized. They have not yet been described ...
    • Hsu, Bin-Yan; Pakanen, Veli-Matti; Boner, Winnie; Doligez, Blandine; Eeva, Tapio; Groothuis, Ton G. G.; Korpimaki, Erkki; Laaksonen, Toni; Lelono, Asmoro; Monaghan, Pat; Sarraude, Tom; Thomson, Robert L.; Tolvanen, Jere; Tschirren, Barbara; Vásquez Morales, Rodrigo; Ruuskanen, Suvi (Wiley, 2022)
      In vertebrates, thyroid hormones (THs) play an important role in the regulation of growth, development, metabolism, photoperiodic responses and migration. Maternally transferred THs are important for normal early phase ...
    • Reyes, Paula I.; Pinto, Víctor A.; Moya Fuentes, Pablo Sebastián (Amer Geophysical Union, 2021)
      Using a time series of geomagnetic storm events between 1957 and 2019, obtained by selecting storms where Dst<-50 nT, we have analyzed the probability of occurrence of moderate, intense, and severe events. Considering that ...
    • Quiroga, Nicol; Correa, Juana P.; Campos Soto, Ricardo; San Juan, Esteban; Araya Donoso, Raúl; Díaz Campusano, Gabriel; González, Christian R.; Botto Mahan, Carezza Veronica (MDPI, 2022)
      Mepraia parapatrica is one of the lesser known and less abundant sylvatic triatomine species naturally infected by the protozoan Trypanosoma cruzi, the etiological agent of Chagas disease. M. parapatrica lives in sympatry ...