Now showing items 201-220 of 4968

    • Davis, Sergio; González Cataldo, Felipe Andrés; Gutiérrez Gallardo, Gonzalo Javier; Avaria, Gonzalo; Bora, Biswajit; Jain, Jalaj; Moreno, José; Pávez, Cristian; Soto, Leopoldo (American Institute of Physics, 2021)
      A simple model for the stochastic evolution of defects in a material under irradiation is presented. Using the master-equation formalism, we derive an expression for the average number of defects in terms of the power flux ...
    • Muñoz, Sebastián M.; Castro Fernández, Víctor Hugo; Guixé Leguia, Victoria Cristina (American Society for Biochemistry and Molecular Biology, 2021)
      ADP-dependent kinases were first described in archaea, although their presence has also been reported in bacteria and eukaryotes (human and mouse). This enzyme family comprises three substrate specificities; specific ...
    • Clavero León, Claudia Fernanda; Ruiz, Daniela; Cillero, Javier; Orlando, Julieta Laura; González, Bernardo (Peerj, 2021)
      Copper (Cu) is important for plant growth, but high concentrations can lead to detrimental effects such as primary root length inhibition, vegetative tissue chlorosis, and even plant death. The interaction between ...
    • Veloz, Tomás; Flores, Daniela (Wiley-Hindawi, 2021)
      Endosymbiosis is a type of symbiosis where one species of microscopic scale inhabits the cell of another species of a larger scale, such that the exchange of metabolic byproducts produces mutual benefit. These benefits can ...
    • Scheiter, Matthias; Schaefer, Marius; Flández, Eduardo; Bozkurt, Deniz; Greve, Ralf (Copernicus Gesellschaft MBH, 2021)
      Glaciers and ice caps are thinning and retreating along the entire Andes ridge, and drivers of this mass loss vary between the different climate zones. The southern part of the Andes (Wet Andes) has the highest abundance ...
    • Rosenfeld Sekulovic, Sebastián Alejandro; Aldea, Cristian; López, Zambra; Maturana, Claudia S.; Ojeda, Jaime; Bahamonde, Francisco; Detree, Camille; Mansilla, Andrés; Poulin, Elie Albert; Gerard, Karin (Nature, 2021)
      Two species of scallop, Austrochlamys natans ("Ostion del Sur") and Zygochlamys patagonica ("Ostion patagonico") are presently exploited in the southern part of the Magallanes Province (MP). The lack of clarity in taxonomic ...
    • Vásquez Moya, Ximena del Pilar; Sánchez Gómez, Pilar; Palma Alvarado, Veronica Alejandra (MDPI, 2021)
      Glioblastoma (GBM) is the most aggressive and common primary tumor of the central nervous system. It is characterized by having an infiltrating growth and by the presence of an excessive and aberrant vasculature. Some of ...
    • González, Camila; Cartagena, Constanza; Caballero, Leonardo; Melo, Francisco; Areche Medina, Carlos Alberto; Cornejo, Alberto (MDPI, 2021)
      Neurodegenerative disorders, including Tauopathies that involve tau protein, base their pathological mechanism on forming proteinaceous aggregates, which has a deleterious effect on cells triggering an inflammatory ...
    • Khalladi, M. T.; Kostic, M.; Pinto Jiménez, Manuel Abelardo; Rahmani, A.; Velinov, D. (Hindawi, 2021)
      The main aim of this paper is to indicate that the notion of semi-c-periodicity is equivalent with the notion of c-periodicity, provided that c is a nonzero complex number whose absolute value is not equal to 1.
    • Celis, F.; Segura, C.; Gómez Jeria, Juan Sebastián; Campos Vallette, Marcelo Mariano; Sánchez Cortés, S. (Nature, 2021)
      SERS spectroscopy is successfully employed in this work to reveal different components integrating the cochineal colorant employed for dying archaeological textile samples from the Arica Region in North Chile. This analysis ...
    • García Sanz, Ignacio; Heine Fuster, Inger Andrea; Luque, José A.; Pizarro Martínez, Héctor Orlando; Castillo, Rodrigo; Pailahual, Matías; Prieto, Manuel; Pérez Portilla, Pablo; Aránguiz Acuña, Adriana (Nature, 2021)
      The Andean Altiplano-Puna is located at an elevation of approximately 4000 m.a.s.l. and is delineated by the Western and the Eastern Andes Cordillera. The high-altitude wetlands (HAWs) in the Central Andes are unique ...
    • Riquelme, Maira; Salgado, Rodrigo; Simonetti Zambelli, Javier Andrés; Landaeta Aqueveque, Carlos; Fredes Martínez, Fernando; Rubio, André V. (MDPI, 2021)
      Land-use changes are one of the most important drivers of zoonotic disease risk in humans, including helminths of wildlife origin. In this paper, we investigated the presence and prevalence of intestinal helminths in wild ...
    • Rosemblatt Bono, Mariana Violeta; Parra Tello, Brian Josué; Briceño Catalán, Pedro Felipe; Rivas Yáñez, Elizabeth Camila; Tucer, Suat; Saavedra Almarza, Juan Pablo; Hormann Cornejo, Pilar Leonor; Martínez, Brandon A.; Lladser, Álvaro; Rosemblatt Silber, Mario César; Cekic, Caglar; Bono Merino, María Rosa; Sauma Mahaluf, Daniela Macarena (Frontiers Media, 2021)
      Ecto-5 '-nucleotidase (CD73) is an enzyme present on the surface of tumor cells whose primary described function is the production of extracellular adenosine. Due to the immunosuppressive properties of adenosine, CD73 is ...
    • Doñas, Cristian; Neira, Jocelyn; Osorio Barrios, Francisco; Carrasco, Macarena; Fernández, Dominique; Prado, Carolina; Loyola, Alejandra; Pacheco, Rodrigo; Rosemblatt Silber, Mario César (Nature, 2021)
      Dendritic cells (DCs) promote T-cell mediated tolerance to self-antigens and induce inflammation to innocuous-antigens. This dual potential makes DCs fundamental players in inflammatory disorders. Evidence from inflammatory ...
    • Levicoy, Daniela; Flores, Kamila; Rosenfeld Sekulovic, Sebastián Alejandro; Cárdenas, Leyla (Nature, 2021)
      It is well established that Antarctic biodiversity has been strongly influenced by rapid climatic fluctuations during the Quaternary. Marine invertebrates from Antarctica constitute an interesting lens through which to ...
    • Toledo Cabrera, Benjamín Andrés; Medina, Pablo; Blunier, Sylvain; Rogan Castillo, José Antonio; Stepanova, Marina; Valdivia Hepp, Juan Alejandro (MDPI, 2021)
      This paper explores the spatial variations of the statistical scaling features of low to high latitude geomagnetic field fluctuations at Swarm altitude. The data for this study comes from the vector field magnetometer ...
    • Sassone, Agostina B.; Arroyo, Mary T. K.; Arroyo Leuenberger, Silvia C.; García Berguecio, Nicolás; Román Ayo, María José (Wiley, 2021)
      The establishment of species boundaries has been a difficult task for biologists since the beginning of classifications. Within South American Allioideae (= Alliaceae), the delimitation of genera and species has long been ...
    • Fukuoka, Toshiki; Kato, Akira; Hirano, Masaki; Ohka, Fumiharu; Aokii, Kosuke; Awaya, Takayuki; Adilijiang, Alimu; Sachi, Maeda; Tanahashi, Kuniaki; Yamaguchi, Junya; Motomura, Kazuya; Shimizu, Hiroyuki; Nagashima, Yoshitaka; Ando, Ryo; Wakabayash, Toshihiko; Lee Liu, Dasfne Nicole; Larraín, Juan; Nishimura, Yusuke; Natsume, Atsushi (Cell Press, 2021)
      The transcriptome analysis of injured Xenopus laevis tadpole and mice suggested that Neurod4L.S., a basic-helix-loop-helix transcription factor, was the most promising transcription factor to exert neuroregeneration after ...
    • Donoso González, Orlando Antonio; Lodeiro Moraga, Lucas Nicolás; Aliaga Cerón, Álvaro Esteban; Laguna Bercero, Miguel A.; Bollo Dragnic, Soledad Viviana; Kogan, Marcelo Javier; Yutronic Sáez, Nicolás Ignacio Antonio; Sierpe Bustamante, Rodrigo Alfredo (MDPI, 2021)
      Gold nanostars (AuNSs) exhibit modulated plasmon resonance and have a high SERS enhancement factor. However, their low colloidal stability limits their biomedical application as a nanomaterial. Cationic beta-cyclodextrin-based ...
    • Arroyo, Mary T. K.; Tamburrino Widner, Ítalo Francisco; Pliscoff, Patricio; Robles Jarpa, Valeria Francisca; Colldecarrera Sunyer, María Rosa; Guerrero, Pablo (MDPI, 2021)
      Delayed flowering due to later snowmelt and colder temperatures at higher elevations in the alpine are expected to lead to flowering phenological adjustment to prevent decoupling of peak flowering from the warmest time of ...