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  1. No Access

    Article

    Projection in negative norms and the regularization of rough linear functionals

    In order to construct regularizations of continuous linear functionals acting on Sobolev spaces such as \(W_0^{1,q}(\varOmega )\) ...

    F. Millar, I. Muga, S. Rojas, K. G. Van der Zee in Numerische Mathematik (2022)

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    Article

    Comparative study on the hydrogen storage capacity of crystalline and amorphous nanomaterials of MoO3: effect of a catalytic Pd cap**

    Hydrogen storage capacities were investigated for two forms of MoO3 nanomaterial, amorphous of low crystallinity, and other highly crystalline, using the quartz crystal microbalance technique. Effect of a catalyt...

    S. Rojas, Martín Roble, J. O. Morales-Ferreiro, D.E. Diaz-Droguett in Ionics (2018)

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    Article

    Modification of the Chemisorption Properties of Epitaxial Delafossite CuFeO2 Thin Films by Substituting Fe for Ga in the Crystal Structure

    Films of CuFeO2 and CuFe0.75Ga0.25O2 were grown over sapphire substrates in high vacuum using a pulsed laser deposition technique. The films grew with rhombohedral delafossite structure and highly epitaxial in th...

    S. Rojas, T. Joshi, Q. Wang, Mikel B. Holcomb, D. Lederman in Topics in Catalysis (2018)

  4. Article

    Open Access

    Impact of a multifaceted intervention on the incidence of pressure ulcers in a medical-surgical icu. a before-after study

    CI Loudet, MC Marchena, R Maradeo, S Fernández in Intensive Care Medicine Experimental (2015)

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    Chapter and Conference Paper

    Really Are Protective Aprons Leaded? Proposed Radiometric Methodology for Assessing Security Protective Devices

    Everyday health professionals, especially cardiologists, performed interventional procedures using fluoroscopy- based equipment; erroneously assumes that working with a nearby one milliampere values for tube c...

    G. E. Avendańo, V. Arredondo, F. Caceres in VI Latin American Congress on Biomedical E… (2015)

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    Chapter and Conference Paper

    A New Second Order Mimetic Finite Difference Scheme to Tackle Boundary Layers-Like Problems

    As part of an effort to create a discrete analog of vector and tensor calculus, that could be used to accurately discretize continuum models of physical and engineering problems, we’ll be presenting a new seco...

    S. Rojas, J. M. Guevara-Jordan in New Trends in Fluid Mechanics Research (2009)

  7. Article

    Open Access

    Convergence of a Mimetic Finite Difference Method for Static Diffusion Equation

    The numerical solution of partial differential equations with finite differences mimetic methods that satisfy properties of the continuum differential operators and mimic discrete versions of appropriate integ...

    J. M. Guevara-Jordan, S. Rojas, M. Freites-Villegas in Advances in Difference Equations (2007)

  8. No Access

    Article

    The monocyte locomotion inhibitory factor produced by Entamoeba histolytica inhibits induced nitric oxide production in human leukocytes

    The monocyte locomotion inhibitory factor, an anti-inflammatory pentapeptide produced by Entamoeba histolytica, inhibits the in vitro production of nitric oxide induced by cytokines (INF-γ, TNF-α) or PMA in human...

    G. Rico, E. Leandro, S. Rojas, J. A. Giménez, R. R. Kretschmer in Parasitology Research (2003)

  9. No Access

    Article

    Effect of Pre- and Post-Partum Feed Supplementation on the Productive and Reproductive Performance of Grazing Primiparous Brahman Cows

    This experiment studied the combined effect of pre- and post-calving feed supplementation on the productive and reproductive performance of primiparous Brahman cows. The animals were 4 years old (420 kg live w...

    R. Soto, I. Rubio, C.S. Galina, E. Castillo in Tropical Animal Health and Production (2001)

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    Article

    Optical characterization of oxynitride films in the visible-ultraviolet range

    Oxynitride optical properties in the visible-ultraviolet spectral range are very interesting, due to their use in electronic device manufacturing. This paper presents spectra of refractive index and extinction...

    A. Borghesi, E. Bellandi, G. Guizzetti, A. Sassella, S. Rojas in Applied Physics A (1993)

  11. Article

    1 ENDOCRINE AND ABSORPTIVE FUNCTION AFIER 95% PANCREATECTOMY. 6-YEAR FOLLOW UP. 2 CLINICAL CASES

    Persistent hyperinsulism in the newborn (NB) entails a risk of recurrent hypoglyaania and secondary neurological damage. When performing pancreatectomy, a 95% extirpation is advised to prevent recurrence of hy...

    S Asenjo, A Gleisner, V Wilhelm, G Venegas, S Rojas in Pediatric Research (1992)

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    Article

    An equation of state for radiating dissipative spheres in general relativity

    The effects of viscosity and thermal conduction on the evolution of radiating fluid spheres are studied. Our proposition for studying dissipative fluids in a general relativistic approach consists of a prescri...

    W. Barreto, S. Rojas in Astrophysics and Space Science (1992)

  13. No Access

    Article

    Infrared characterization of silicon dioxide films obtained by chemical vapour deposition

    In this work we report new FTIR absorbance measurements due to Si−O stretching bond, Si−O−Si and O−Si−O bending bonds of silicon dioxide amorphous films. We compare the optical results obtained from films grow...

    A. Borghesi, L. Colombo, S. Rojas, Wing S. Wu in Il Nuovo Cimento D (1988)