Browsing by Title

Now showing items 164-183 of 91744

    • 8-NH2-boldine, an antagonist of α1A and α1B adrenoceptors without affinity for the α1D subtype: Structural ... 
      Ivorra, M. Dolores; Valiente, Miguel; Martĩnez, Sonia; Madrero, Yolanda; Noguera, M. Antonia; Cassels Niven, Bruce; Sobarzo Sánchez, Eduardo; D'Ocon, Pilar (2005)
      Structure-activity analysis of 21 aporphine derivatives was performed by examining their affinities for cloned human α1A, α1B and α1D adrenoceptors (AR) using membranes prepared from rat-1 fibroblasts stably expressing ...
    • 80 años de un viaje : Teatro Nacional Chileno 1941-2021 
      Keim Palma, Cristian; Durán Rivera, Andrea; Mandic de la Ravanal, Valentina; Lucero Leiva, Marcelo; Medina González, Rosa; Cápona, Daniela; San Juan, Valentina; Barría, Mauricio; Henrique, Tomás (Universidad de Chile. Ediciones Archivo Central Andrés Bello, 2022)
    • Los 80: La producción en las bastillas 
      Carvajal Gallardo, Valentina Pamela Andrea (Universidad de Chile, 2016)
      A través de las interrogantes: ¿Cómo es posible comprender el fenómeno? ¿De dónde venían los altos índices de rating de la serie? ¿Cuál fue el origen de los Herrera? ¿Cómo sería adentrarse en la piel de un mismo personaje ...
    • 870 mu m continuum observations of the bubble-shaped nebula Gum 31 
      Duronea, N.; Vásquez, J.; Gómez, L.; Cappa, C.; Firpo, V.; López Caraballo, C.; Rubio López, Mónica (EDP Sciences, 2015)
      Aims. We present here a study of the cold dust in the close environs of the ring nebula Gum 31. We aim at deriving the physical properties of the molecular gas and dust associated with the nebula, and investigating its ...
    • 8th European Federation for Primatology Meeting 
      da Silva, MF; Tralma, P; Martinez, FI; Capelli, C; Carvalho, S (NLM (Medline), 2020)
    • 9 de junio : día nacional del barros luco 
      Vukasovic Herrero, Krasna (Universidad de Chile, 2018)
      La presente memoria se configura como una bitácora o diario de mi proceso creativo y metodología de trabajo durante mi formación académica. Los ejercicios de pintura mencionados aquí están motivados por una indagación ...
    • 9,10-dihydroxy-4,4-dimethyl-5,8-dihydroanthracen-1(4H)-one 
      Ramírez Rodríguez, Oney; Martínez Cifuentes, Maximiliano; Ibáñez, A.; Vega, Andrés; Araya Maturana, Ramiro (BLACKWELL PUBLISHING, 2008-07)
      In the title molecule, C16H16O3, the ring system is planar and an intramolecular hydrogen bond is present. The molecular packing is dominated by an intermolecular hydrogen bond and by pi-stacking interactions [interplanar ...
    • 90´s Rock en transición 
      Rojas Vásquez, Jorge Alfonso; Pereira Abarca, Osvaldo Israel; Mrugalski Ortiz de Zárate, Cristóbal Amaro (Universidad de Chile, 2016)
      El reportaje se construye a partir de testimonios y diferentes puntos de vista sobre un mismo fenómeno: el Rock de los 90. Se presentan tres perspectivas sobre este movimiento musical: la de los músicos, la de la industria ...
    • Los 97 días en que la concertación salvó a Pinochet: enemigos aliados 
      Insunza Corvalan, Andrea (2002)
    • (+ )-9C(-HYOROXYMATRINE FROM SOPHORA MACROCARPA 
      Negrete Córdova, Rosa; Cassels Niven, Bruce; Eckhardt, Gert (Pergamon Press Ltd., 1983-01-21)
      A new quinolizidine alkaloid, (+ )-9cx-hydroxymatrine, was isolated from the lea ves of Sophora macrocarpa. Its structure was determined by a combination of spectroscopic methods, among which nuclear Overhauser enhancement ...
    • (+)-9α-Hydroxymatrine from Sophora macrocarpa 
      Negrete, Rosa; Cassels Niven, Bruce; Eckhardt, Gert (1983)
      A new quinolizidine alkaloid, (+)-9α-hydroxymatrine, was isolated from the leaves of Sophora macrocarpa. Its structure was determined by a combination of spectroscopic methods, among which nuclear Overhauser enhancement ...
    • A "minimal" sodium channel construct consisting of ligated S5-P-S6 segments forms a toxin-activatable ionophore 
      Chen, Zhenhui; Alcayaga, Carmen; Suárez Isla, Benjamín; O'Rourke, Brian; Tomaselli, Gordon; Marbán, Eduardo (2002)
      The large size (six membrane-spanning repeats in each of four domains) and asymmetric architecture of the voltage-dependent Na+ channel has hindered determination of its structure. With the goal of determining the minimum ...
    • A (5/3 +)-Approximation for unsplittable flow on a path: Placing small tasks into boxes 
      Grandoni, Fabrizio; Wiese, Andreas; Mömke, Tobias; Zhou, Hang (Association for Computing Machinery, 2018)
      In the unsplittable flow on a path problem (UFP) we are given a path with edge capacities and a collection of tasks. Each task is characterized by a subpath, a profit, and a demand. Our goal is to compute a maximum ...
    • A 1-D morphodynamic model for rill erosion 
      Papanicolaou, Athanasios; Sanford, John; Dermisis, Dimitrios; Mancilla Escobar, Gabriel (AMER GEOPHYSICAL UNION, 2010-09-30)
      The key objective of this paper is to develop a 1‐D hydrodynamic and sediment transport model, namely, RILL1D, that handles transcritical flows over abrupt changes (e.g., formation of pool crests and width change) in a ...
    • A 1.8-kg keloid of the arm [23] 
      Prado, Arturo S.; Fontbona, Monserrat (2006)
    • A 10 gene classifier for indeterminate thyroid nodules: development and multicenter accuracy study 
      González, Hernán E.; Martínez, José R.; Vargas Salas, Sergio; Solar, Antonieta; Véliz, Loreto; Cruz, Francisco; Arias, Tatiana; Loyola, Soledad; Horvath, Eleonora; Tala, Hernán; Traipe, Eufrosina; Meneses, Manuel; Marıín, Luis; Wohllk, Nelson; Díaz, René E.; Véliz, Jesús; Abalos Pineda, Pedro; Arroyo, Patricia; Mena, Natalia P.; Bracamonte, Milagros; Miranda, Giovanna; Bruce, Elsa; Urra, Soledad (Mary Ann Liebert, 2017)
      Background: In most of the world, diagnostic surgery remains the most frequent approach for indeterminate thyroid cytology. Although several molecular tests are available for testing in centralized commercial laboratories ...
    • A 14-mo zinc-supplementation trial in apparently healthy chilean preschool children 
      Ruz, Manuel; Castillo-Duran, Carlos; Lara, Ximena; Codoceo, Juana; Rebolledo, Annabella; Alalah, Eduardo (American Society for Nutrition, 1997)
      Apparently healthy preschool children (46 boys, 52 girls) aged 27-50 mo from low socioeconomic conditions who attended daycare centers in Santiago participated in a 14-mo long double-blind zinc supplementation trial. Unlike ...
    • A 2-year follow-up of a program for the control of cardiovascular risk factors among asymptomatic workers 
      Kauffmann,; Bunout Barnett, Daniel; Hidalgo, H.; Aicardi,; Rodríguez Rodríguez, Pablo Andrés; Cañas,; Roessler, Emilio (1992)
      In 1987, a cardiovascular risk profile was obtained on 836 workers of the National Electricity Co in Santiago. There were 714 males and 125 females, the mean age was 45 years (ES +/- 0.3). Hypertension (systolic pressure ...
    • A 205 kDa protein from non-neuronal cells in culture contains tubulin binding epitopes 
      Vial, Clarisa; Armas Portela, Rosario; Avila, Jesús; González, Mauricio; Maccioni Baraona, Ricardo (Kluwer Academic Publishers, 1995)
      Microtubule-associated proteins (MAPs) interact with tubulin in vitro and in vivo. Despite that there is a large amount of information on the roles of these proteins in neurons, the data on non-neuronal MAPs or MAPs-related ...
    • A 22,000-year record of monsoonal precipitation from northern chile's atacama desert 
      Betancourt, J. L.; Latorre, C.; Rech, J. A.; Quade, J.; Rylander, K. A. (American Association for the Advancement of Science, 2000)
      Fossil rodent middens and wetland deposits from the central Atacama Desert (22°to 24°S) indicate increasing summer precipitation, grass cover, and groundwater levels from 16.2 to 10.5 calendar kiloyears before present (ky ...