Browsing by Title

Now showing items 170-189 of 91508

    • 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 ...
    • A 3-D perspective to the internal properties of low and high-redshift galaxies 
      Molina Tobar, Juan Andrés (Universidad de Chile, 2019)
      En el presente trabajo estudio la morfología y cinemática de dos muestras de galaxias a bajo y alto corrimiento al rojo (redshift). Analizo la cinemática interna de estas galaxias con objetivo de encontrar posibles ...
    • A 30 kpc spatially extended clumpy and asymmetric galactic outflow at z similar to 1.7 
      Shaban, Ahmed; Bordoloi, Rongmon; Chisholm, John; Sharma, Soniya; Sharon, Keren; Rigby, Jane R.; Gladders, Michael G.; Bayliss, Matthew B.; Barrientos, L. Felipe; López Morales, Sebastián Víctor Claudio; Tejos, Nicolas; Ledoux, Cédric; Florian, Michael K. (IOP, 2022)
      We image the spatial extent of a cool galactic outflow with fine-structure Fe ii* emission and resonant Mg ii emission in a gravitationally lensed star-forming galaxy at z = 1.70347. The Fe ii* and Mg ii (continuum-subtracted) ...
    • A 3D Iris Scanner from a Single Image Using Convolutional Neural Networks 
      Benalcazar, DP; Zambrano, JE; Bastias, D; Perez, CA; Bowyer, KW (Institute of Electrical and Electronics Engineers Inc., 2020)
    • A 3D Iris Scanner from Multiple 2D Visible Light Images 
      Benalcazar, Daniel P.; Bastías, Diego; Pérez Flores, Claudio; Bowyer, Kevin W. (Institute of Electrical and Electronics Engineers, 2019)
      The development of new methods for biometrics using the 3-D surface of the iris could be useful in various applications, such as reliable identity verification of people, when only segments of the iris are available, the ...
    • A 3D Voronoi+Gapper Galaxy Cluster Finder in Redshift Space to z ∼ 0.2. II. An Abundant Cluster Population ... 
      Campusano Brown, Luis; Marinello, Gabriel; Clowes, Roger G.; Haines, Christopher P.; Pereira, Sebastián; Pizarro, Daniel; Hitschfeld Kahler, Nancy; Söchting, Ilona K. (IOP, 2020)
      We identify 1901 galaxy clusters (N-g >= 2) with the VoML+G algorithm (Paper I) on the Two-Degree Field Galaxy Redshift Survey. We present the 341 clusters with at least 10 galaxies that are within 0.009 < z < 0.14 (the ...
    • A 4-year follow-up case of extrusive luxation in a patient with cerebral palsy 
      Véliz Ramírez, Andrea; Krämer Strenger, Susanne; Solar López, Melissa; Muñoz Cortes, Pamela; Corral Núñez, Camila (Blackwell Publishing Inc., 2019)
      © 2019 Special Care Dentistry Association and Wiley Periodicals, Inc.Cerebral palsy (CP) is a condition caused by brain damage before, during, or shortly after birth. Communication can be a challenge when treating patients ...