Now showing items 144-163 of 69590

    • 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 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 Dominated by Late-type Galaxies Unveiled 

      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 ...
    • A 50 pc Scale View of Star Formation Efficiency across NGC 628 

      Kreckel, K.; Faesi, C.; Kruijssen, J.; Schruba, A.; Groves, B.; Leroy, A.; Bigiel, F.; Blanc Mendiberri, Guillermo; Chevance, M.; Herrera, C.; Hughes, A.; McElroy, R.; Pety, J.; Querejeta, M.; Rosolowsky, E.; Schinnerer, E.; Sun, J.; Usero, A.; Utomo, D. (Institute of Physics Publishing, 2018)
      Star formation is a multi-scale process that requires tracing cloud formation and stellar feedback within the local (≲kpc) and global galaxy environment. We present first results from two large observing programs on the ...
    • A 50 pc scale view of star formation efficiency across NGC 628 

      Kreckel, K.; Faesi, C.; Kruijssen, J. M. D.; Schruba, A.; Groves, B.; Leroy, A. K.; Bigiel, F.; Blanc Mendiberri, Guillermo; Chevance, M.; Herrera C., Daniel; Hughes, A.; McElroy, R.; Pety, J.; Querejeta, M.; Rosolowsky, E.; Schinnerer, E.; Sun, J.; Usero, A.; Utomo, D. (IOP Publishing, 2018-08-20)
      Star formation is a multi-scale process that requires tracing cloud formation and stellar feedback within the local (less than or similar to kpc) and global galaxy environment. We present first results from two large ...
    • A Bargaining Model of Friendly and Hostile Takeovers 

      Loyola Fuentes, Gino; Portilla, Yolanda (Wiley, 2016)
      A bargaining model is developed that characterizes the conditions under which a takeover will either be friendly, hostile, or unsuccessful when the target management can tilt the selling procedure toward a white knight. The ...
    • A basic anesthesia training program for nurses in Chad: first steps for a south–south academic cooperation program Programme de formation de base en anesthésie pour le personnel infirmier au Tchad: premiers pas d’un programme de coopération académique sud 

      Kattan, Eduardo; Takoudjou, Rodrigue; Venegas, Karen; Brousse, Julio; Delfino, Alejandro; López Barreda, R. (Springer New York LLC, 2019)
      Purpose: Safe perioperative care remains a large public healthcare problem in low- and middle-income countries. Anesthesia care provided by trained professionals is one of the essential determinants to address this situation. ...
    • A BAX/BAK and cyclophilin D-independent intrinsic apoptosis pathway 

      Zamorano, Sebastián; Rojas Rivera, Diego; Lisbona, Fernanda; Parra, Valentina; Court, Felipe A.; Villegas, Rosario; Cheng, Emily H.; Korsmeyer, Stanley J.; Lavandero González, Sergio; Hetz Flores, Claudio (2012)
      Most intrinsic death signals converge into the activation of pro-apoptotic BCL-2 family members BAX and BAK at the mitochondria, resulting in the release of cytochrome c and apoptosome activation. Chronic endoplasmic ...
    • A bayesian based methodology for indirect object search 

      Loncomilla, Patricio; Ruíz del Solar San Martín, Javier; Saavedra A., Marcelo (Springer, 2018)
      The main goal of this paper is to propose a Bayesian based methodology for implementing robot informed search for objects. The methodology uses convolutions between observation likelihoods of secondary objects and spatial ...
    • A Bayesian mixture-of-gaussians model for astronomical observations in interferometry 

      Araya Hernández, Lerko; Osses Alvarado, Axel; Silva Sánchez, Jorge; Tobar Henríquez, Felipe Arturo (IEEE, 2017)
      The interferometry problem addresses the estimation of an unknown quantity exploiting the interference among measurements from different sources. These measurements are obtained from the Fourier domain but are sparse and ...