1,601 research outputs found

    La imagen como medio para fortalecer los procesos orales en personas sordas y oyentes

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    Este artículo presenta los resultados del estudio realizado acerca de cómo fortalecer los procesos orales a través de la imagen en la población sorda y oyente, en las instituciones Manuela Beltrán I.E.D ciclo 2 y Vista Bella I.E.D ciclo 3. Para llevarlo a cabo se estableció un enfoque metodológico cualitativo de tipo Investigación- Acción- Participación, para diseñar, implementar y analizar el grado de argumentación por parte de los estudiantes y alcanzar los objetivos propuestos; para ello se aplicó una prueba diagnóstica y como estrategia la secuencia didáctica, adicionalmente se realizó un registro a través de diarios de campo, fotografías, videos y cuestionarios, para la recolección de la información. En conclusión, la imagen es el canal de aprendizaje en común de las personas sordas y oyentes; además de ello, la lectura de imágenes fortaleció la argumentación oral de los estudiantes tanto en la comunidad sorda como oyente

    La imagen como medio para fortalecer los procesos orales en personas sordas y oyentes

    Get PDF
    Este artículo presenta los resultados del estudio realizado acerca de cómo fortalecer los procesos orales a través de la imagen en la población sorda y oyente, en las instituciones Manuela Beltrán I.E.D ciclo 2 y Vista Bella I.E.D ciclo 3. Para llevarlo a cabo se estableció un enfoque metodológico cualitativo de tipo Investigación- Acción- Participación, para diseñar, implementar y analizar el grado de argumentación por parte de los estudiantes y alcanzar los objetivos propuestos; para ello se aplicó una prueba diagnóstica y como estrategia la secuencia didáctica, adicionalmente se realizó un registro a través de diarios de campo, fotografías, videos y cuestionarios, para la recolección de la información. En conclusión, la imagen es el canal de aprendizaje en común de las personas sordas y oyentes; además de ello, la lectura de imágenes fortaleció la argumentación oral de los estudiantes tanto en la comunidad sorda como oyente

    Chemical abundance of the LINER galaxy UGC 4805 with SDSS-IV MaNGA

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    Chemical abundance determinations in Low-Ionization Nuclear Line Regions (LINERs) are especially complex and uncertain because the nature of the ionizing source of this kind of object is unknown. In this work, we study the oxygen abundance in relation to the hydrogen abundance (O/H) of the gas phase of the UGC 4805 LINER nucleus. Optical spectroscopic data from the Mapping Nearby Galaxies (MaNGA) survey was employed to derive the O/H abundance of the UGC 4805 nucleus based on the extrapolation of the disk abundance gradient, on calibrations between O/H abundance and strong emission-lines for Active Galactic Nuclei (AGNs) as well as on photoionization models built with the Cloudy code, assuming gas accretion into a black hole (AGN) and post-Asymptotic Giant Branch (p-AGB) stars with different effective temperatures. We found that abundance gradient extrapolations, AGN calibrations, AGN and p-AGB photoionization models produce similar O/H values for the UGC 4805 nucleus and similar ionization parameter values. The study demonstrated that the methods used to estimate the O/H abundance using nuclear emission-line ratios produce reliable results, which are in agreement with the O/H values obtained from the independent method of galactic metallicity gradient extrapolation. Finally, the results from the WHAN diagram combined with the fact that the high excitation level of the gas has to be maintained at kpc scales, we suggest that the main ionizing source of the UGC 4805 nucleus probably has a stellar origin rather than an AGN.Instituto de Astrofísica de La Plat

    A genome-wide association study identifies protein quantitative trait loci (pQTLs)

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    There is considerable evidence that human genetic variation influences gene expression. Genome-wide studies have revealed that mRNA levels are associated with genetic variation in or close to the gene coding for those mRNA transcripts - cis effects, and elsewhere in the genome - trans effects. The role of genetic variation in determining protein levels has not been systematically assessed. Using a genome-wide association approach we show that common genetic variation influences levels of clinically relevant proteins in human serum and plasma. We evaluated the role of 496,032 polymorphisms on levels of 42 proteins measured in 1200 fasting individuals from the population based InCHIANTI study. Proteins included insulin, several interleukins, adipokines, chemokines, and liver function markers that are implicated in many common diseases including metabolic, inflammatory, and infectious conditions. We identified eight Cis effects, including variants in or near the IL6R (p = 1.8×10 -57), CCL4L1 (p = 3.9×10-21), IL18 (p = 6.8×10-13), LPA (p = 4.4×10-10), GGT1 (p = 1.5×10-7), SHBG (p = 3.1×10-7), CRP (p = 6.4×10-6) and IL1RN (p = 7.3×10-6) genes, all associated with their respective protein products with effect sizes ranging from 0.19 to 0.69 standard deviations per allele. Mechanisms implicated include altered rates of cleavage of bound to unbound soluble receptor (IL6R), altered secretion rates of different sized proteins (LPA), variation in gene copy number (CCL4L1) and altered transcription (GGT1). We identified one novel trans effect that was an association between ABO blood group and tumour necrosis factor alpha (TNF-alpha) levels (p = 6.8×10-40), but this finding was not present when TNF-alpha was measured using a different assay , or in a second study, suggesting an assay-specific association. Our results show that protein levels share some of the features of the genetics of gene expression. These include the presence of strong genetic effects in cis locations. The identification of protein quantitative trait loci (pQTLs) may be a powerful complementary method of improving our understanding of disease pathways. © 2008 Melzer et al

    Genome-wide association and HLA fine-mapping studies identify risk loci and genetic pathways underlying allergic rhinitis

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    Allergic rhinitis is the most common clinical presentation of allergy, affecting 400 million people worldwide, with increasing incidence in westernized countries1,2. To elucidate the genetic architecture and understand the underlying disease mechanisms, we carried out a meta-analysis of allergic rhinitis in 59,762 cases and 152,358 controls of European ancestry and identified a total of 41 risk loci for allergic rhinitis, including 20 loci not previously associated with allergic rhinitis, which were confirmed in a replication phase of 60,720 cases and 618,527 controls. Functional annotation implicated genes involved in various immune pathways, and fine mapping of the HLA region suggested amino acid variants important for antigen binding. We further performed genome-wide association study (GWAS) analyses of allergic sensitization against inhalant allergens and nonallergic rhinitis, which suggested shared genetic mechanisms across rhinitis-related traits. Future studies of the identified loci and genes might identify novel targets for treatment and prevention of allergic rhinitis
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