Implementation of virtual learning environments as a motivating strategy for the development of reading skills

El presente artículo presenta los resultados derivados del estudio Implementación de Ambientes virtuales de Aprendizaje como estrategia motivadora para el desarrollo de competencias lectoras. Además de analizar el uso de ambientes virtuales de aprendizaje como estrategia motivadora para el desarrollo de competencias lectoras, se proponen alternativas pertinentes para dinamizar los espacios de enseñanza-aprendizaje. La problemática general en las aulas de clases en torno al proceso de aprendizaje y en específico de las competencias lectoras de los estudiantes, promueve la búsqueda de caminos para el aprovechamiento y la estructuración de oportunidades para que el colectivo de docentes fortalezcna e innoven en sus prácticas pedagógicas y así generar mayor interés y motivación en ellos. La población objeto de estudio estuvo conformada por estudiantes de 9 grado de la Institución Educativa Néstor Andrés Rangel Alfaro. El estudio tuvo como propósito fomentar los ambientes virtuales de aprendizaje como una estrategia motivadora que fortalece el del desarrollo de las competencias lectorasThis article presents the results derived from the study Implementation of virtual learning environments as a motivating strategy for the development of reading skills; In addition to establishing how the use of virtual learning environments as a motivating strategy for the development of reading skills, it is relevant to boost the teaching-learning spaces. The general problems in the classroom around the learning process and specifically the reading skills of students, promotes the structuring of opportunities for teachers to strengthen and innovate in their pedagogical practices and thus generate greater interest and motivation in them. The population studied was made up of 9th grade students from the Néstor Andrés Rangel Alfaro Educational Institution. The purpose of the study was to promote virtual learning environments as a motivating strategy that strengthens the development of reading skills

Lubricating Ability of Aspirated Synovial Fluid from Emergency Department Patients with Knee Joint Synovitis

Objective. To determine if joint effusions encountered in the emergency department (ED) requiring arthrocentesis possess normal lubricating ability or evidence cartilage degeneration. Chondroprotection of articulating joint surfaces is provided by lubricin, a mucinous glycoprotein that is a product of megakaryocyte-stimulating factor gene (GenBank U70136) expression. Loss of synovial fluid\u27s (SF) lubricating ability has been implicated in the pathogenesis of degenerative joint disease. Methods. A retrospective ED observational study from May 1, 1999, to October 1, 2000, of adult and pediatric patients presenting with radiographically negative knee joint complaints and clinical evidence of joint effusion. Knee joints were aspirated by the emergency physician and the synovial fluid tested for lubricating ability and collagen type II degeneration. Lubricating ability was assayed in vitro in an arthrotripsometer oscillating latex apposed to polished glass under a load of 0.35 × 106 N/m2. Results were reported as the coefficient of friction (μ) relative to that of a 0.9% NaCl control; negative Δμ value indicates lubrication. Comparisons of Δμ were made to normal SF and aspirates from patients with osteoarthritis (OA) and rheumatoid arthritis. Collagen type II fragments were measured by a novel sandwich ELISA. Results. Synovial fluid aliquots (n = 57) lubricated poorly with Δμ = -0.045 (95% confidence interval = -0.006, -0.083) compared to normal SF with Δμ = -0.095 (95% CI = -0.088, -0.101). Only 20.6% of knee joint aspirates possessed normal lubricating ability. An association exists between nucleated cell count and Δμ described by a logarithmic function. Collagen type II fragments were present in aspirates at a concentration of 0.636 μg/ml (95% CI 0.495-0.777 μg/ml), significantly higher than 0.173 μg/ml (95% CI 0.154-0.193 μg/ml) in the OA comparison group. Conclusion. Knee joints with synovitis, commonly encountered in the ED, are frequently nonlubricated bearings and display catabolism of collagen type II. This may play a role in acute cartilage destruction ultimately resulting in posttraumatic OA