Browsing by Title

Now showing items 9-28 of 6415

    • +A 5680-year tree-ring temperature record for southern South America 

      González-Reyes, A. [Univ Mayor, Fac Ciencias, Hemera Ctr Observac Tierra, Santiago, Chile]; Lara, A.; Villalba, R.; Urrutia-Jalabert, R.; Aravena, J. C.; Luckman, B. H.; Cuq, E.; Rodríguez, C.; Wolodarsky-Franke, A. (PERGAMON-ELSEVIER SCIENCE LTD, 2020)
      It is widely documented that the Earth's surface temperatures have increased in recent decades. However, temperature increment patterns are not uniform around the globe, showing different or even contrasting trends. Here ...

    • A balancing act: how plants integrate nitrogen and water signals 

      Araus, Viviana; Swift, Joseph; Alvarez, Jose M. [Centro de Genómica y Bioinformática, Facultad de Ciencias, Universidad Mayor, Chile]; Henry, Amelia; Coruzzi, Gloria M. (Oxford University Press, 2020-07-25)
      Nitrogen (N) and water (W) are crucial inputs for plant survival as well as costly resources for agriculture. Given their importance, the molecular mechanisms that plants rely on to signal changes in either N or W status ...

    • A Carbohydrate Moiety of Secreted Stage-Specific Glycoprotein 4 Participates in Host Cell Invasion by Trypanosoma cruzi Extracellular Amastigotes 

      Cordero, Esteban M. [Univ Mayor, Ctr Genom & Bioinformat, Fac Ciencias, Santiago, Chile]; Florentino, Pilar T. V.; Real, Fernando; Orikaza, Cristina M.; da Cunha, Julia P. C.; Vitorino, Francisca N. L.; Sobreira, Tiago J. P.; Mortara, Renato A. (FRONTIERS MEDIA SA, 2018)
      Trypanosoma cruzi is the etiologic agent of Chagas' disease. It is known that amastigotes derived from trypomastigotes in the extracellular milieu are infective in vitro and in vivo. Extracellular amastigotes (EAs) have a ...

    • A case report of a primary synovial chondromatosis of temporomandibular joint, producing medial displacement of the articular disc. 

      Droguett, C. [Chile. Universidad Mayor]; Fumeaux, JE [Chile. Universidad Mayor]; Skármeta, Nicolás Patricio [Chile. Universidad Mayor] (Facultad de Ciencias, 2014)
      Synovial chondromatosis in the temporomandibular joint (TMJ) is a rare benign cartilaginous metaplasia characterized by the formation of loose bodies within the synovial joint space. This condition presents a specific triad ...

    • A characterization for some type-2 fuzzy strong negations 

      Hernández-Varela, P. [Univ Mayor, Fac Estudios Interdisciplinarios Nucleo Matemat F]; Cubillo, S.; Torres-Blanc, C. (ELSEVIER, 2020)
      P. Hernandez et al. in 2014 established the axioms that an operation must fulfill in order to be a negation on a bounded poset (partially ordered set). In this work, we focus on the set L of the membership degrees of the ...

    • A clinical predictive score for mood disorder risk in low-income primary care settings 

      Jimenez, M. I. [Universidad de Chile]; Igor, Mirko A. [Universidad de Chile]; Fores, G. A. [Chile. Universidad Mayor]; Correa, M. O. [Chile.Universidad de Los Andes]; Sullivan, M. C. [Estados Unidos. Tufts Medical Center]; Holtzman, N. S. [Estados Unidos. Tufts Medical Center] (CIENCIAS, 2013)
      BACKGROUND: Despite availability of validated screening tests for mood disorders, busy general practitioners (GPs) often lack the time to use them routinely. This study aimed to develop a simplified clinical predictive ...

    • A comparative performance analysis of total PSA, percentage free PSA, PSA velocity, and PSA density versus the detection of primary circulating prostate cells in predicting initial prostate biopsy findings in chilean men 

      Reyes, Eduardo [Chile. Universidad Diego Portales]; Orellana,Nelson [Chile. Hospital de Carabineros]; Fuentealba, Cynthia [Chile. Hospital de Carabineros]; Dueñas,Ricardo. [Chile. Hospital de Carabineros] (CIENCIAS, 2014)
      Introduction. PSA parameters have been used in an attempt to improve the diagnostic yield of prostate screening tests; the detection of primary malignant circulating prostate cells (CPCs) may improve the diagnostic yield ...

    • A Comparison of Energy Efficiency Certification in Housing: A Study of the Chilean and Spanish Cases 

      Sanhueza-Durán, Francisco [Univ Mayor, Escuela Construcc Civil, Fac Ciencias]; Gómez-Soberon, JoséM.; Valderrama-Ulloa, Claudia; Ossio, Felipe (MDPI, 2019)
      Faced with implementing policies that seek to improve the energy efficiency of housing and reduce the impact of CO2 emissions, several countries are introducing (unilaterally or by international agreement) energy certification ...

    • A country's response to tackling plastic pollution in aquatic ecosystems: The Chilean way 

      Urbina, M. A.; Luna-Jorquera, G.; Thiel, M.; Acuña-Ruz, T.; Amenabar Cristi, M. A.; Andrade, C.; Ahrendt, C.; Castillo, C.; Chevallier, A.; Cornejo-D'Ottone, M.; Correa-Araneda, F.; Duarte, C.; Fernández, C.; Galban-Malagón, C. [Univ Mayor, Ctr Genom Ecol & Environm, GEMA, Chile]; Godoy, C.; González-Aravena, M.; Hinojosa, I. A.; Jorquera, A.; Kiessling, T.; Lardies, M. A.; Lenzi, J.; Mattar, C.; Munizaga, M.; Olguin-Campillay, N.; Pérez-Venegas, D. J.; Portflitt-Toro, M.; Pozo, K.; Pulgar, J.; Vargas, E. (Chile. Universidad Mayor, 2021)
      Marine plastic pollution is worse than expected, and we are starting to realize its full extent and severity. Solving the plastic pollution problem is not easy, as it requires the action and commitment of all sectors of ...

    • A cross-scale assessment of productivity-diversity relationships 

      Craven, Dylan [Univ Mayor, Ctr Modelac & Monitoreo Ecosistemas, Fac Ciencias, Chile]; van der Sande, Masha T.; Meyer, Carsten; Gerstner, Katharina; Bennett, Joanne M.; Giling, Darren P.; Hines, Jes; Phillips, Helen R. P.; May, Felix; Bannar-Martin, Katherine H.; Chase, Jonathan M.; Keil, Petr (Chile. Universidad Mayor, 2020)
      Aim Biodiversity and ecosystem productivity vary across the globe, and considerable effort has been made to describe their relationships. Biodiversity and ecosystem functioning research has traditionally focused on how ...

    • A decentralized route to the origins of scaling in human language 

      Urbina, Felipe [Univ Mayor, Fac Ciencias, Ctr Invest DAiTA Lab, Santiago, Chile]; Vera, Javier (IOP PUBLISHING LTD, 2019)
      Zipf's law establishes that if the words of a (large) text are ordered by decreasing frequency, the frequency versus the rank decreases as a power law with exponent close to -1. Previous work has stressed that this statistical ...

    • A dual role for Integrin alpha 6 beta 4 in modulating hereditary neuropathy with liability to pressure palsies 

      Poitelon, Yannick; Matafora, Vittoria; Silvestri, Nicholas; Zambroni, Desiree; McGarry, Claire; Serghany, Nora; Rush, Thomas; Vizzuso, Domenica; Court, Felipe A. [Ctr Integrat Biol, Fac Sci, Universidad Mayor, Chile]; Bachi, Angela; Wrabetz, Lawrence; Feltri, María Laura (WILEY, 2018-05)
      Peripheral myelin protein 22 (PMP22) is a component of compact myelin in the peripheral nervous system. The amount of PMP22 in myelin is tightly regulated, and PMP22 over or under-expression cause Charcot-Marie-Tooth 1A ...

    • A dynamic portal for a community-driven, continuously updated classification of Fungi and fungus-like organisms: outlineoffungi.org 

      Madrid, H. [Univ Mayor, Fac Ciencias, Ctr Genom & Bioinformat, Chile]; Wijayawardene, N. N.; Hyde, K. D.; Dai, D. Q.; Tang, L. Z.; Aptroot, A.; Castaneda-Ruiz, R. F.; Druzhinina, I. S.; Cai, F.; Ekanayaka, A. H.; Erdogdu, M.; Fiuza, P. O.; Gentekaki, E.; Goto, B. T.; Haelewaters, D.; Hongsanan, S.; Jeewon, R.; Kirk, P. M.; Jayalal, R. G. U.; Karunarathna, S. C.; Wanasinghe, D. N.; Lumbsch, H. T.; Maharachchikumbura, S. S. N.; Monteiro, J. S.; Shivaprakash, N.; Pfliegler, W. P.; Phillips, A. J. L.; Saxena, R. K.; Stadler, M.; Tian, Q.; Tokarev, Y. S.; Tsurykau, A.; Ertz, D.; Lee, H. B.; Etayo, J.; Vizzini, A.; Jones, E. B. G.; Lin, C. G.; Li, W. J.; Dai, Y. C.; Fan, X. L.; McKenzie, E. H. C.; Shivas, R. G.; Hustad, V.; Leontyev, D., V.; de Hoog, G. S.; Niskanen, T.; Boekhout, T.; Gaya, E.; Thines, M. (Chile. Universidad Mayor, 2020)
      The website http://outlineoffungi.org, is launched to provide a continuous up-to-date classification of the kingdom Fungi (including fossil fungi) and fungus-like taxa. This is based on recent publications and on the outline ...

    • A functional ferric uptake regulator (Fur) protein in the fish pathogen Piscirickettsia salmonis 

      Valderrama, Katherine [Chile. Universidad Católica del Norte]; Ayala, Manuel [Chile. Universidad Mayor]; Segovia, Cristopher [Chile. Universidad Mayor]; Santander, Javier [Chile. Universidad Mayor] (CIENCIAS, 2016)
      Piscirickettsia salmonis, a Gram-negative fastidious facultative intracellular pathogen, is the causative agent of the salmonid rickettsial septicemia (SRS). The P. salmonis iron acquisition mechanisms and its molecular ...

    • A GIS-based framework to identify priority areas for urban environmental inequity mitigation and its application in Santiago de Chile 

      Fernández, Ignacio C. [Univ Mayor, Ctr Estudios Recursos Nat OTERRA, Santiago 8340585, RM, Chile]; Wu, Jianguo (ELSEVIER SCI LTD, 2018)
      Environmental inequity is a common phenomenon of modern cities, particularly in the developing world where the high rates of urbanization often surpass the capacity of local governments to develop proper urban planning. ...

    • A HaloTag-TEV genetic cassette for mechanical phenotyping of proteins from tissues 

      Rivas-Pardo, Jaime Andrés [Centro de Genómica y Bioinformática, Facultad de Ciencias, Universidad Mayor, Chile]; Li, Yong; Martonfalvi, Zsolt; Tapia-Rojo, Rafael; Unger, Andreas; Fernández-Trasancos, Angel; Herrero-Galán, Elías; Velázquez-Carreras, Diana; Fernández, Julio M.; Linke, Wolfgang A.; Alegre-Cebollada, Jorge (Nature Publishing Group, 2020-04-28)
      Single-molecule methods using recombinant proteins have generated transformative hypotheses on how mechanical forces are generated and sensed in biological tissues. However, testing these mechanical hypotheses on proteins ...

    • A highly stable black phosphorene nanocomposite for voltammetric detection of clenbuterol 

      Camarada, María Belén [Univ Mayor, Fac Ciencias, Ctr Nanotecnol Aplicada]; Ge, Yu; Xu, Lanjiao; Qu, Mingren; Liang, Huan; Zhao, Erlong; Li, Mingfang; Wen, Yangping (SPRINGER WIEN, 2018)
      A nanocomposite was prepared from graphene-like two-dimensional black phosphorene (BP, an allotrope of phosphorus) and nafion (Nf) treated with isopropanol (IP). A glassy carbon electrode (GCE) modified with this nanocomposite ...

    • A mechanistic approach for the optimization of loperamide loaded nanocarriers characterization: Diafiltration and mathematical modeling advantages 

      Catalán-Figueroa, Johanna [Univ Mayor, Ctr Nanotecnol Aplicada, Santiago, Chile]; Fiedler, Jenny L. [Univ Mayor, Ctr Nanotecnol Aplicada, Santiago, Chile]; Boisset, Constanza B.; Jara, Miguel O.; Flores, Mario E.; Moreno-Villoslada, Ignacio; Morales, Javier O. (ELSEVIER SCIENCE BV, 2018)
      Oral bioavailability of loperamide is restricted by its limited absorption in the gastrointestinal tract due to its poor aqueous solubility and its P-glycoprotein (Pgp) substrate characteristic. In addition, ammonium ...

    • A Metholodological Proposal for Using Poetry in the English as a Foreign Language Classroom 

      Carbone Bruna, Soffía Antonella [Chile. Universidad Mayor] (Chile. Universidad Mayor, 2019)
      Abstract: The following essay aims to invite English as a foreign or second language teachers to include poetry in their classes as an alternative technique that might cause a positive impact in their students’ ...

    • A Multicenter Study Evaluating the Stages of Change in Food Consumption with Warning Labels among Chilean University Students 

      Fernández, Eloina [Univ Mayor, Escuela Nutr & Dietet, Fac Ciencias]; Villarroel, Pia [Univ Mayor, Escuela Nutr & Dietet, Fac Ciencias]; Durán Aguero, Samuel; Araneda, Jacqueline; Ahumada, Danay; Silva Rojas, Jaime; Buhring Bonacich, Rodrigo; Caichac, Astrid; Fernández Salamanca, Marcelo; Pacheco, Viviana; Aravena Martinovic, Paola; Wilson, Waleska; María Neira, Ana; Encina, Claudia; Moya Tilleria, Jessica (HINDAWI LTD, 2020)
      Objective. To analyze the stage of change in food consumption with warning labels among Chilean university students. Materials and Methods. Cross-sectional study which applied surveys in universities from all over the ...