Estimulación del potencial de aprendizaje en niños y niñas con discapacidad intelectual

Una de las alternativas para medir la inteligencia no influenciada por el lenguaje, la cultura y las necesidades especiales es la evaluación del potencial de aprendizaje a través del aprendizaje mediado. Esta investigación busca evidencias del efecto de la estimulación en la mejora en el potencial de aprendizaje de niños con discapacidad intelectual. Se llevó a cabo un estudio cuasi-experimental con diseño pretest-postest-postest1mes, con un grupo único compuesto por 21 niños con Síndrome de Down que asisten al Programa de Inclusión Educativa para las Necesidades Educativas Especiales. Los resultados muestran evidencias de mejora en el potencial de aprendizaje.One way to measure intelligence beyond language, culture or special needs influences is the Dynamic Assessment through Mediated Learning. In this study we try to promote learning in a group of children with intellectual disability (Down Syndrome) by the EPA. It is a study: Quasi-experimental pretest Postest- Postest1mes, with only group. Population: 21 children with Down Syndrome (DS) attending the Program for Educational Inclusion Special Educational Needs (SEN). Results show evidences of positive gain in Learning Potential

Disentangling vegetation structure effect on invertebrate communities in contrasting growth periods in subtropical protected wetlands of Argentina

This study assesses the effect of vegetation structure on the subtropical invertebrate communities in contrasting sampling dates of macrophyte populations in the RAMSAR site of Iberá wetlands, South America. Invertebrates associated with the submersed Egeria najas and the floating rooted Pontederia azurea were chosen to provide a model involving different microhabitat complexity. The results suggest that vegetation structure provided by the two macrophyte species supported significant differences in the density of animals, with invertebrate abundance of E. najas twice as high as on P. azurea. Abundance showed no significant differences in both contrasting sampling dates, growth and decline. Our result clearly showed invertebrates exclusively associated with each macrophyte species, as well different invertebrate taxa dominating in each sampling date (decline: Cladocera; growth: Aphididae, Belostomatidae and Planorbidae). We also show that working at the taxonomic levels of family could be a sensible trade-off between taxonomic identification effort versus reaching reliable and useful results for environmental monitoring and natural resource management in highly diverse subtropical wetlands. Our results emphasize the role of vegetation structure on invertebrate communities, as well suggest that the growth cycle of macrophyte populations could be a relevant variable influencing these animals in pristine subtropical wetlands.Fil: Sabater, Lara Milena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; ArgentinaFil: Franceschini, Maria Celeste. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; ArgentinaFil: Gallardo, Luciana Irene. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentina. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura; ArgentinaFil: Coronel, Juan Manuel. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura; ArgentinaFil: Perez, Alejandra Patricia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentin

Influence of Macrophyte Complexity and Environmental Variables on Macroinvertebrate Assemblages Across a Subtropical Wetland System

Different architectures in aquatic plants with different levels of morphological complexity provide environmental heterogeneity in freshwater ecosystems, and consequently influence invertebrate assemblages. We investigated the relative importance of the structural complexity of macrophytes and environmental variables on the abundance and richness of the macroinvertebrate assemblages associated with aquatic plants across the Esteros del Iberá. This protected wetland system located in Corrientes (Argentina) is fed by rain. Macrophyte habitat complexity was quantified by measuring fractal geometry dimensions of area and perimeter and plant biomass. We sampled macroinvertebrates associated with five species of macrophyte (Egeria najas, Cabomba caroliniana, Potamogeton gayi, Eichhornia azurea and Salvinia biloba) in five shallow lakes during two different seasons (dry and rainy) between 2007 and 2008. Regression analyses revealed that macrophyte structural complexity was an important factor on macroinvertebrate assemblages, whereas explanatory power of environmental variables was low. In both seasons, the fractal dimension of area was the variable with the highest explanatory power on richness, and plant biomass was in the case of macroinvertebrate abundance. To conserve macroinvertebrate diversity in Esteros del Iberá, it would be necessary to maintain the natural heterogeneity indicated by the different structural complexities of the macrophytes across the wetland.Fil: Poi, Alicia Susana G.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; ArgentinaFil: Gallardo, Luciana Irene. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; ArgentinaFil: Casco, Sylvina Lorena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; ArgentinaFil: Sabater, Lara Milena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; ArgentinaFil: Úbeda, Bárbara. Universidad de Cadiz. Facultad de Ciencias; Españ

Propuesta para intervenir la Malaria en el Departamento del Chocó

En el presente trabajo se forja una propuesta de intervención que aborda una de las problemáticas con mayor incidencia detectada en el análisis de la situación en salud ASIS del Departamento del Chocó (2019), como lo es la Malaria, enfermedad mortal causada por parásitos que transmiten al ser humano por la picadura del mosquito hembra infectado del género Anopheles, este plan de beneficios aborda información pertinente y minuciosa, para plantear estrategias que permitan articular acciones para su superación y erradicación, combinando intervenciones individuales y colectivas como la promoción de la salud, la prevención de la enfermedad y la gestión del riesgo.In this work, an intervention proposal is forged that addresses one of the problems with the highest incidence detected in the analysis of the ASIS health situation of the Department of Chocó (2019), such as Malaria, a deadly disease caused by parasites that transmit the human being by the bite of the infected female mosquito of the genus Anopheles, this benefit plan addresses pertinent and detailed information, to propose strategies that allow the articulation of actions for its improvement and eradication, combining individual and collective interventions such as health promotion, disease prevention and risk management

Estudio de parámetros metabólicos en sujetos jóvenes sometidos a ejercicio sub-máximo después de la administración de mate de coca, en la exposición aguda de altura

Objetivos: Determinar los parámetros metabólicos glucosa, colesterol, triglicéridos, HDL, en sujetos jóvenes sometidos a ejercicio sub-máximo después de la administración de mate de coca, en exposición aguda de altura. Diseño: Estudio experimental. Institución: Instituto Nacional de Biología Andina. Instituto de Investigaciones Clínicas y Sección Fisiología de la Facultad de Medicina, UNMSM. Participantes: Estudiantes universitarios varones nativos del nivel del mar. Intervenciones: Se estudió siete jóvenes voluntarios sanos, del nivel del mar (NM) (Lima, 150 m), edad 22,43 ± 0,81 años, peso 66,21 ± 1,80 kg. Se contó con la firma del consentimiento informado. Antes del viaje se les sometió a un examen clínico y se evaluó los parámetros metabólicos a medir en la altura (ALT). Dentro de las 24 horas de arribo a la altura (Huancayo, 3 280 m) y en condiciones de ayuno, se les sometió a un ejercicio sub-máximo, utilizando bicicleta estacionaria. Se obtuvo una muestra de sangre para análisis. Luego de un descanso de 30 minutos, en el cual se les dio a beber medio litro de infusión de mate de coca, se sometió a otra prueba de ejercicio sub-máximo, obteniéndose otra muestra de sangre. Los resultados fueron analizados con el paquete estadístico SPSS 19, mediante la pruebas no paramétricas de Friedman y la prueba de Wilcoxon. Principales medidas de resultados: Glucosa, colesterol, triglicéridos, HDL, en suero. Resultados: Glucosa (mg/dL): NM 87,57± 4,10; ejercicio ALT 85,71± 2,07; ejercicio ALT + MC 81,43 ± 2,27. Colesterol (mg/dL): NM 156,86 ± 9,14; ejercicio ALT 156,43 ± 8,78; ejercicio ALT + MC 173,00 ± 8,76. Triglicéridos (mg/dL): NM 133,00 ± 12,72; ejercicio ALT 129,71 ± 8,95; ejercicio ALT + MC 137,00 ± 7,55; HDL (mg/dL): NM 55,14 ± 3,57, ejercicio ALT 48,57 ± 4,85 mg/dL; ejercicio ALT + MC 46,43 ± 2,10. El hematocrito en la altura fue 48,43 ± 0,72. Conclusiones: En las condiciones experimentales descritas, no se encontró variaciones significativas en los parámetros metabólicos estudiados

Thrombospondin-1 mediates muscle damage in brachio-cervical inflammatory myopathy and systemic sclerosis

To describe the clinical, serologic and histologic features of a cohort of patients with brachio-cervical inflammatory myopathy (BCIM) associated with systemic sclerosis (SSc) and unravel disease-specific pathophysiologic mechanisms occurring in these patients. We reviewed clinical, immunologic, muscle MRI, nailfold videocapillaroscopy, muscle biopsy, and response to treatment data from 8 patients with BCIM-SSc. We compared cytokine profiles between patients with BCIM-SSc and SSc without muscle involvement and controls. We analyzed the effect of the deregulated cytokines in vitro (fibroblasts, endothelial cells, and muscle cells) and in vivo. All patients with BCIM-SSc presented with muscle weakness involving cervical and proximal muscles of the upper limbs plus Raynaud syndrome, telangiectasia and/or sclerodactilia, hypotonia of the esophagus, and interstitial lung disease. Immunosuppressive treatment stopped the progression of the disease. Muscle biopsy showed pathologic changes including the presence of necrotic fibers, fibrosis, and reduced capillary number and size. Cytokines involved in inflammation, angiogenesis, and fibrosis were deregulated. Thrombospondin-1 (TSP-1), which participates in all these 3 processes, was upregulated in patients with BCIM-SSc. In vitro, TSP-1 and serum of patients with BCIM-SSc promoted proliferation and upregulation of collagen, fibronectin, and transforming growth factor beta in fibroblasts. TSP-1 disrupted vascular network, decreased muscle differentiation, and promoted hypotrophic myotubes. In vivo, TSP-1 increased fibrotic tissue and profibrotic macrophage infiltration in the muscle. Patients with SSc may present with a clinically and pathologically distinct myopathy. A prompt and correct diagnosis has important implications for treatment. Finally, TSP-1 may participate in the pathologic changes observed in muscle

High-resolution mass spectrometry identification of dye compounds and their degradation products in American cochineal from a historic shipping cargo

Cochineal dyes constitute paradigmatic organic compounds that guide in the elucidation of historic cultural and economical exchanges. This study combines liquid chromatography and high-resolution tandem mass spectrometry to assess the degradation products of the organic dyes of American cochineal collected from the cargo of a 16th century sunken wreck. The identification of biological materials of historical and archeological origin is often challenging due to molecular degradation. In this scenario, the mapping of the chemical routes underlying the fate of the organic and biochemical compounds employed as taxonomic biomarkers becomes of crucial importance. This work shows that, under harsh environmental conditions, the original carminic and (flavo)kermesic acid structures of cochineal dyes are prone to chemical transformation, typically losing the carboxylic acid and glucoside groups. The anthraquinone core is preserved in the majority of degradation products identified in this study, with eventual side chains reminiscent of a partial degradation of the glucoside moiety. The comparison of these observations with the analysis of modern cochineal samples allows us to lay out an updated chart of dye compounds and degradation products which should constitute a seminal benchmark for future biomolecular analysis of historic and archeological dye materials.Proyecto Arqueomemes (PY-FR-18:2001) Junta de Andalucía

Multisite luminescence of rare earth doped TiO2 anatase nanoparticles

Eu3+, Sm3+ and Tb3+ ions have been incorporated into anatase TiO2 nanocrystals via hydrolytic sol–gel method. Pure anatase phase was confirmed with XRD and TEM measurements. Band gap energies change slightly with rareearth incorporation, from 3.32 eV for undoped TiO2 to 3.15 eV, 3.25 eV and 3.29 eV for Tb3+, Sm3+ and Eu3+doped TiO2. Photoluminescence of Eu3+ and Sm3+ originated from three different sites in TiO2 nanocrystals have been identified with the laser-excited site-selective spectroscopy measurements at 10 K. One site exhibits broad emission peaks, which are ascribed to the distorted lattice site near the surface. Other two sites, associated with the inner lattice, show significantly sharper fluorescence lines as a consequence of an ordered crystalline environment. The emission decays of Eu3+ and Sm3+ have similar values for inner-lattice sites and longer lifetimes for near-surface sites. The luminescence of Tb3+doped TiO2 nanocrystals was immeasurably weak

Heritage and the Sea: Maritime History and Archaeology of the Global Iberian World (15th -18th centuries)

This two-volume set highlights the importance of Iberian shipbuilding in the centuries of the so-called first globalization (15th to 18th), in confluence with an unprecedented extension of ocean navigation and seafaring and a greater demand for natural resources (especially timber), mostly oak (Quercus spp.) and Pine (Pinus spp.). The chapters are framed in a multidisciplinary and interdisciplinary line of research that integrates history, Geographic Information Sciences, underwater archaeology, dendrochronology and wood provenance techniques. This line of research was developed during the ForSEAdiscovery project, which had a great impact in the academic and scientific world and brought together experts from Europe and America. The volumes deliver a state-of-the-art review of the latest lines of research related to Iberian maritime history and archaeology and their developing interdisciplinary interaction with dendroarchaeology. This synthesis combines an analysis of historical sources, the systematic study of wreck-remains and material culture related to Iberian seafaring from the 15th to the 18th centuries, and the application of earth sciences, including dendrochronology. The set can be used as a manual or work guide for experts and students, and will also be an interesting read for non-experts interested in the subject.Volume 1 focuses on the history and archaeology of seafaring and shipbuilding in the Iberian early modern world, complemented by case studies on timber trade and supply for shipbuilding, analysis of shipbuilding treatises, and the application of Geographic Information Systems and Databases (GIS) to the study of shipwrecks.Volume 2 focuses on approaches to the study of shipwrecks including a synthesis of dendro-archaeological results, current interdisciplinary case studies and the specialist study of artillery and anchors.Peer reviewe