89 research outputs found

    As pinturas murais de Santa María de Nogueira de Miño. Estudo iconográfico

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    Traballo Fin de Grao en Historia da Arte. Curso 2020-2021A seguinte monografía ocuparase da valoración e estudo do templo parroquial de Santa María de Nogueira de Miño entendido como continente e contido. Dende a súa valoración arquitectónica para afondar nas súas pinturas murais. O obxectivo deste estudo é, ante todo, relatar e informar sobre as pinturas ao fresco do monumento chantadino e conseguir así un estado da cuestión actualizado. Para acadar estes obxectivos empregaranse varias metodoloxías: dende o análise bibliográfico e iconográfico á investigación historiográfica. Ao longo do estudo exporanse diferentes argumentos e hipóteses sobre a iconografía, significado, e cronoloxía dos ciclos pictóricos, tanto de autores diversos como propios. A finalidade é poder proporcionar un coñecemento da obra actualizado e o máis completo posible.La siguiente monografía se ocupará de la valoración y estudio del templo parroquial de Santa María de Nogueira de Miño entendido como conteniente y contenido. Desde su valoración arquitectónica para ahondar en sus pinturas murales. El objetivo de este estudio es, ante todo, relatar e informar sobre las pinturas al fresco del monumento chantadino y conseguir así un estado de la cuestión actualizado. Para alcanzar estos objetivos se emplearán varias metodologías: desde el análisis bibliográfico e iconográfico y la investigación historiográfica. A lo largo del estudio se exponen diferentes argumentos e hipótesis sobre la iconografía, significado y cronología de los ciclos pictóricos, tanto de autores diversos cómo propios. La finalidad es poder proporcionar un conocimiento de la obra actualizado y lo más completo posible.This monograph will deal with the assessment and study of the parish temple of Santa María de Nogueira de Miño understood as contentant and content. From its architectural assessment to delve into his mural paintings.The objective of this study is, above all, to relate and informabout the fresco paintings of the monumentand thus get an updated state of the matter. To achieve these objectives several methodologies will be used: bibliographic and iconographic analysis and historiographical research.Throughout the study, we will deal with different arguments and hypotheses about the iconography, meaning and chronology of pictorial cycles, based on the different authors and our theories.The purpose is to be able to provide an updated and as complete knowledge of the work as possibl

    Spatial and temporal segregation of auditory and vestibular neurons in the otic placode

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    AbstractThe otic placode generates the auditory and vestibular sense organs and their afferent neurons; however, how auditory and vestibular fates are specified is unknown. We have generated a fate map of the otic placode and show that precursors for vestibular and auditory cells are regionally segregated in the otic epithelium. The anterior-lateral portion of the otic placode generates vestibular neurons, whereas the posterior-medial region gives rise to auditory neurons. Precursors for vestibular and auditory sense organs show the same distribution. Thus, different regions of the otic placode correspond to particular sense organs and their innervating neurons. Neurons from contiguous domains rarely intermingle suggesting that the regional organisation of the otic placode dictates positional cues to otic neurons. But, in addition, vestibular and cochlear neurogenesis also follows a stereotyped temporal pattern. Precursors from the anterior-lateral otic placode delaminate earlier than those from its medial-posterior portion. The expression of the proneural genes NeuroM and NeuroD reflects the sequence of neuroblast formation and differentiation. Both genes are transiently expressed in vestibular and then in cochlear neuroblasts, while differentiated neurons express Islet1, Tuj1 and TrkC, but not NeuroM or NeuroD. Together, our results indicate that the position of precursors within the otic placode confers identity to sensory organs and to the corresponding otic neurons. In addition, positional information is integrated with temporal cues that coordinate neurogenesis and sensory differentiation

    Spatial and temporal segregation of auditory and vestibular neurons in the otic placode

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    This is an article Open Access.The otic placode generates the auditory and vestibular sense organs and their afferent neurons; however, how auditory and vestibular fates are specified is unknown. We have generated a fate map of the otic placode and show that precursors for vestibular and auditory cells are regionally segregated in the otic epithelium. The anterior-lateral portion of the otic placode generates vestibular neurons, whereas the posterior-medial region gives rise to auditory neurons. Precursors for vestibular and auditory sense organs show the same distribution. Thus, different regions of the otic placode correspond to particular sense organs and their innervating neurons. Neurons from contiguous domains rarely intermingle suggesting that the regional organisation of the otic placode dictates positional cues to otic neurons. But, in addition, vestibular and cochlear neurogenesis also follows a stereotyped temporal pattern. Precursors from the anterior-lateral otic placode delaminate earlier than those from its medial-posterior portion. The expression of the proneural genes NeuroM and NeuroD reflects the sequence of neuroblast formation and differentiation. Both genes are transiently expressed in vestibular and then in cochlear neuroblasts, while differentiated neurons express Islet1, Tuj1 and TrkC, but not NeuroM or NeuroD. Together, our results indicate that the position of precursors within the otic placode confers identity to sensory organs and to the corresponding otic neurons. In addition, positional information is integrated with temporal cues that coordinate neurogenesis and sensory differentiation. © 2008 Elsevier Inc. All rights reserved.This work was funded by grants from the Guy's and St Thomas' Charitable Foundation and the BBSRC to AS, BMC2002-00355 CICYT to BA, BFU2005-0084-CICYT and CSIC to IVN, and XT-G03/203 ISCIII MSC to IVN and FG. IG was supported by a predoctoral fellowship from the Eusko Jaularitza.Peer Reviewe

    Encuentro de cuentos: reflexiones en torno a una experiencia de trabajo por proyectos en secundaria

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    This paper presents the reflections of five teachers during a project-based learning implementation. It is an action research experience what stimulates reflections about teaching practice. The main focus is the production of a short stories anthology written by the students after the reading and analysis of several models texts. The implementation allowed checking the large advantages of this method. Another strength is the collaborative work between two high school�s students, because teachers can think about the teaching practice before, during and after of the project writing, at the same time they could compare the finds and suggest improvements to adapt to classroom needs.Este artículo presenta las reflexiones de cinco profesoras durante la puesta en marcha de una secuencia didáctica. Se trata de una experiencia investigación-acción que facilita la reflexión sobre la práctica docente y cuyo objetivo es la elaboración de una antología de relatos creada por el propio alumnado tras la lectura y análisis de una serie de cuentos. El desarrollo de la secuencia permitió comprobar las numerosas ventajas del trabajo por proyectos. El otro punto fuerte de esta experiencia, la colaboración entre dos centros de Educación Secundaria, permite al profesorado reflexionar sobre la práctica docente antes, durante y después de la elaboración del proyecto, contrastando hallazgos y proponiendo mejoras adaptadas a las necesidades del aula

    Metodologías innovadoras e inclusivas en educación secundaria: los grupos interactivos y la asamblea de aula

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    In a context where diversity is the defining word, it has been proved possible taking advantage of that diversity as a powerful educational tool instead of considering it an obstacle. Two met hodologies, interactive groups and group assemblies, make students work toget her and change certain mistaken points of view. Interactive groups enable our students to work together the same activities and contents; each one may contribute with his or her capacities to the joint process of solving a task. Group assemblies foster dialogue and commitment. Both of them build a broader and stronger school.En un contexto en el que la diversidades la palabra clave, en lugar de considerarla un obstáculo, ha sido posible aprovechar dicha diversidad como una herramienta educativa poderosa. Dos met odologías, los grupos interactivos y las asambleas de aula, logran que los estudiantes trabajen juntos y cambien puntos de vista erróneos. Los grupos interactivos permiten a nuestros alumnos trabajar juntos las mismas actividades y contenidos; cada uno contribuye con sus propias capacidades al proceso conjunto de resolución dela tarea. Las asambleas de aula fomentan el diálogo y el compromiso. Ambas metodologías construyen una escuela de éxito y de calidad

    WINGS: a WIde-field nearby Galaxy-cluster survey III. Deep near-infrared photometry of 28 nearby clusters

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    Context. This is the third paper of a series devoted to the WIde-field Nearby Galaxy-cluster Survey (WINGS).WINGS is a long term project aimed at gathering wide-field, multiband imaging and spectroscopy of galaxies in a complete sample of 77 X-ray selected nearby clusters (0.04<z<0.07) located far from the galactic plane (b>20deg). The main goal of this project is to establish a local reference sample for evolutionary studies of galaxies and galaxy clusters. Aims. This paper presents the near-infrared (J,K) photometric catalogs of 28 clusters of the WINGS sample and describes the procedures followed to construct them. Methods. The raw data has been reduced at CASU and special care has been devoted to the final coadding, drizzling technique, astrometric solution and magnitude calibration for the WFCAM pipeline processed data. We have constructed the photometric catalogs based on the final calibrated coadded mosaics (0.79 deg2) in J (19 clusters) and K (27 clusters) bands. A customized interactive pipeline has been used to clean the catalogs and to make mock images for photometric errors and completeness estimates. Results. We provide deep near-infrared photometric catalogs (90% complete in detection rate at total magnitudes J =20.5, K =19.4, and in classification rate at J = 19.5 and K = 18.5), giving positions, geometrical parameters, total and aperture magnitudes for all detected sources. For each field we classify the detected sources as stars, galaxies and objects of "unknown" nature.Comment: Published by A&A501.851 - 15 pages, 3 tables, 13 figures. Catalogs will be available via CDS and http://web.oapd.inaf.it/wing

    Online audio-visual information on oral cancer for Spanish-speaking laypersons. A cross-sectional study

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    Lack of knowledge and awareness of oral cancer seem to be the main causes of diagnostic delay. Online resources are often used by patients to obtain health/medical information. However, there are no reports on the quality and usefulness of oral cancer audio-visual resources in Spanish. The aims of this investigation were to disclose the type of information about oral cancer available, and whether it may be useful to shorten the patients? oral cancer appraisal time-interval. Cross-sectional study undertaken at three video-sharing sites on October, 13th 2019. Keywords: ?Cáncer oral?; ?cáncer de boca?. The first 100 results in each viewing list were retrieved by three reviewers. Demographical data was recorded, and interaction indexes, viewing rates, comprehensiveness, and usefulness were calculated for each video. The presence of non-scientifically supported information was also assessed. A descriptive analysis was undertaken, and relationships between variables were explored using the Spearman correlation test. A total of 127 videos were selected. They were produced mainly by mass-media (46.5%; n=59) and their length ranged from 0.28 to 105.38 minutes (median 4.15 minutes; IQR: 2.34-9.67). The most viewed video (10,599,765 views; visualization rate 726,508.9) scored 0 both in usefulness and comprehensiveness. The most useful video gathered 44,119 views (visualization rate 2.033.13). A highly significant positive correlation (0.643; p<0.001) could be observed between usefulness and comprehensiveness of the videos, together with negative correlations between the visualization rate and usefulness (-0.186; p<0.05), and visualization rate and comprehensiveness (-0.183; p<0.05). Online audio-visual material about oral cancer in Spanish is incomplete, of limited usefulness, and often includes non-scientifically supported information. Most of these resources are produced by mass media and healthcare professionals, with minor contributions from educational and healthcare institutions. Visualization rates negatively correlated with the usefulness and comprehensiveness of the contents in these digital objects

    Combined Sodium Hypochlorite and 940 nm Diode Laser Treatment Against Mature E. Faecalis Biofilms in-vitro

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    INTRODUCTION: Laser irradiation has been introduced in endodontic treatment due to its bactericidal effect. The aim of this study is to evaluate the bactericidal efficacy of a 940 nm diode laser alone or in combination with 5% sodium hypochlorite (NaOCl) against mature biofilms of E. Faecalis.METHODS: Sixty-eight (60 for the three groups, 4 for SEM and 4 as negative controls) single-rooted human central incisors were prepared and contaminated with E. Faecalis. After two weeks of incubation, specimens were randomly divided in three groups; group 1 (n =20), the teeth were irradiated with a 940 nm diode laser; group 2 (n=20), specimens were rinsed with 5% NaOCl; group 3 (n=20), the teeth were rinsed with 5% NaOCl and then were irradiated with 940 nm diode laser. Four teeth were used to observe the biofilms by SEM. Intracanal bacteria sampling was done, and the samples were plated to determinate the CFU count.RESULTS: At 24 hours and 7 days, group 3 showed a significant difference (P=0,02; P=0,00) in disinfection if compared to group 1 but did not show this difference if compared to group 2 (P=1, P=0,66), although group 3 obtaining a more extensive disinfection. Groups 1 and 2 did not show difference after 24 hours (P=0,09) but showed a significant difference 7 days afterwards (P=0,04).CONCLUSION: The combination of sodium hypochlorite and diode laser light (940 nm) has a synergistic effect, intensifying the bactericidal action
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