Now showing items 1-4 of 4

    • Measuring contribution of infoplazas to internet penetration and use in Panama 

      Miller, Norma L. (2004-12)
      infoplazas arose in Panama as means to combat the digital gap by providing Internet connectivity to the economically disadvantaged and geographically remote. Yet there is a dearth of information regarding their actual ...
    • Effectiveness of natural antioxidants in sunflower oil 

      Carelli, Amalia A.; Franco, Indira C.; Crapiste, Guillermo H. (2005-06-27)
      The antioxidant activity of ∝- and δ-tocopherol, citric acid, ascorbic acid and ascorbyl palmitate was investigated in sunflower oil containing naturally occurring tocopherol. The effectiveness of natural antioxidants in ...
    • Preparación de Películas de Óxidos de Estaño Como Sensores de Gases 

      Chacón, Manuel; Abrego, Ildemán; Watson, Amanda; Ching, Eleicer (2009-06)
      Se obtuvieron películas delgadas de Óxido de Estaño (SnO2) por el método de química líquida a partir de una solución precursora de Cloruro de Estaño IV (SnCl4). Las muestras fueron depositadas sobre sustrato de vidrio ...
    • Roughness measurement of paper using speckle 

      Pino, Abdiel; Pladellorens, Josep; Cusola, Oriel; Caum, Jesus (2011-09-02)
      We present a method of measure of the roughness of the paper based on the analysis of a speckle pattern on the surface. Images of speckle over the surface of paper are captured by means of a simple configuration using a ...