1,117 research outputs found

    Future technologies in Le Corbusier's environmental conditioning systems: city of refuge in Paris

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    The City of Refuge in Paris (1929-30) is an experimental building where Le Corbusier wanted to apply his famous proposal of environmental conditioning systems of buildings through the combination of two technological advances that supported his concept of machine à habiter: the mur neutralisant and respiration exacte. This paper presents a historical journey from the first attempts to carry out these two technological innovations to a complete informative documentation on the major decisions and changes made in the City of Refuge by collecting letters and reports of the main actors who intervened in it. The aim of this study is to investigate environmental conditioning through passive and active strategies in Le Corbusier's architecture, carrying this study out in the year 2013, which marks the 50th anniversary of his death. The results and findings have allowed us to complete the analysis that architectural critics have produced on the City of Refuge, through understanding the real behaviour of the building as originally built, as well as the success that the combination of the mur neutralisant and the respiration exacte, advanced technologies for their time, could have had. At present these are once again being used in the design of active façades which deal with existing concerns about sustainability and energy efficiency

    E-pSylon: una herramienta para la teleenseñanza síncrona

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    Muchas de las herramientas de teleenseñanza actuales corresponden al modelo asíncrono, donde instructor y alumnos interactúan desde espacios y tiempos diferentes. El modelo de teleenseñanza síncrona permite incorporar estrategias probadas con éxito en la enseñanza presencial, donde el apoyo visual del instructor a las explicaciones facilita la comprensión por parte de los alumnos. Se consigue así una enseñanza guiada y una realimentación inmediata de los alumnos. En este trabajo se propone una herramienta de teleenseñanza síncrona de sencillo manejo que permite el desarrollo de clases virtuales donde instructor y alumnos interactúan en tiempo real. También se presenta la experiencia con el uso de la herramienta en asignaturas relacionadas con la Ingeniería Informática y algunas conclusiones al respecto.Peer Reviewe

    The relationship between effectiveness and throwing velocity in a handball match

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    The relationship between throwing velocity and performance is an important question in handball, but has received little research attention in competitive scenarios. The aim of the present study was to analyse the relationship between throwing velocity and player effectiveness during a match. We analysed the throws of 69 players, recording the ball velocity of 1007 goal-scoring shots. Based on their effectiveness, the players were divided into three groups: Group 1 (G1): 40% to 49.9% effectiveness; Group 2 (G2), 50% to 59.9% effectiveness; and Group 3 (G3) ≥ 60% effectiveness. No significant differences were observed between G1 and G2, but G3 presented significantly lower velocities (21.14 ± 4.97 vs 23.40 ± 6.19, p<0.001; and vs 22.41 ± 7.19, p<0.05) than G1 and G2, respectively. We also found an inverse relationship between effectiveness and throwing velocity (r=-0.48; p< 0.001), whereby faster throws reduced players’ effectiveness in competitive scenarios. All previous studies on throwing in handball have been conducted in non-competitive contexts; however, contrary to the results obtained in training contexts, we found an inverse relationship between effectiveness and high throwing velocity in competitive scenarios

    Editorial

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    ResumenEste nuevo n&uacute;mero de la revista MedUNAB, de la Universidad Aut&oacute;noma de Bucaramanga UNAB, constituye el fruto de un trabajo promovido por las directivas de la Facultad De Medicina y ejecutado laboriosamente por un grupo de profesores y estudiantes que tesoneramente han liderado la dif&iacute;cil tarea de estructurar un &oacute;rgano informativo y cient&iacute;fico para nuestra regi&oacute;n

    Editorial

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    ResumenEste nuevo número de la revista MedUNAB, de la Universidad Autónoma de Bucaramanga UNAB, constituye el fruto de un trabajo promovido por las directivas de la Facultad De Medicina y ejecutado laboriosamente por un grupo de profesores y estudiantes que tesoneramente han liderado la difÍcil tarea de estructurar un órgano informativo y cientÍfico para nuestra región

    Track Forest Biomass Dynamics and Carbon Flux using MultitemporalAirborne Lidar Remote Sensing

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    Comparison of two soft tissue substitutes for the treatment of gingival recession defects: an animal histological study

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    Objectives: This study aimed to compare two different soft tissue replacement grafts in their ability to treat gingival recession defects and successfully integrate with the surrounding tissues. Methodology: Nine beagle dogs were included and followed up to 10 weeks. Sites for intervention were allocated to one of the grafting materials investigated. Treatment consisted of coronally advanced flap combined with one of the two soft tissue substitutes on a previous surgically created defect. Materials employed were porcine-derived acellular dermal matrix (ADM) [Novomatrix™ (Test)] and collagen-based matrix (CBM) [Mucograft® (Control)]. Animals were sacrificed at 2, 6, and 10 weeks postoperatively and compared using descriptive histology and histomorphometric outcomes.&nbsp;Results: Macroscopic findings were similar between test and control groups at all intervals. After 10 weeks, both groups demonstrated successful incorporation of the grafting materials without signs of rejection and with comparable tissue integration. The histomorphometric data were similar between groups at 2 weeks; however, the test group provided greater root coverage and increase in tissue thickness than the control at 6- and 10-weeks post surgically. Conclusions: Both porcine-derived ADM and CBM revealed similar histological outcomes with successful integration and absence of adverse events. Test group provided superior outcomes regarding root coverage and increase in tissue thickness

    El icnogénero Zoophycos y su valor sedimentológico y paleoambiental

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    El icnogénero Zoophycos (Cancellophynts) puede proporcionar datos sedimentológicos de sumo interés, lo cual viene favorecido por: su fácil reconocimiento (tanto en series estratigráficas como en testigos de sondeos), relativa frecuencia de aparición, y amplia reparticibn temporal (Ordovicico - Cuaternario)

    ¿Cuál es su diagnóstico?

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    ResumenMujer de 30 años que consultó por masa a nivel vulvar, acompañada de crecimiento del perimetro abdominal y pérdida de peso. TenÍa como antecedente dos intervenciones previas por quistes vaginales (1 y 2 años antes), sin informe histopatológico. GOPO con deseos de embarazo

    Psychometric properties of the Valuing Questionnaire in a Spaniard sample and factorial equivalence with a Colombian sample

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    Background. The Valuing Questionnaire (VQ) is considered as one of the most psychometrically robust instruments to measure valued living according to the acceptance and commitment therapy model. It consists of 10 items that are responded to on a 7-point Likert-type scale and has two factors: Progression and Obstruction. The Spanish version of theVQshowed good psychometric properties in Colombian samples. However, there is no evidence of the psychometric properties of the VQ in Spaniard samples. This study aims to analyze the validity of the VQ in a large Spaniard sample and analyze the measurement invariance with a similar Colombian sample. Method. The VQ was administered to a Spaniard sample of 846 adult participants from general online population. Cronbach's alpha and McDonald's omega were computed to analyze the internal consistency of the VQ. The fit of the VQ's two-factor model was tested through a confirmatory factor analysis with a robust maximum likelihood (MLR) estimation method. Afterward, we analyzed the measurement invariance across countries and gender. Convergent construct validity was analyzed with a package of questionnaires that evaluated experiential avoidance (Acceptance and Action Questionnaire-II, AAQ-II), emotional symptoms (Depression Anxiety and Stress Scale-21, DASS-21), life satisfaction (Satisfaction with Life Scale, SWLS), and cognitive fusion (Cognitive Fusion Questionnaire, CFQ). Results. The internal consistency across samples was adequate (alphas and omegas were .85 for VQ-Progress and .84 for VQ-Obstruction). The two-factor model obtained a good fit to the data (RMSEA D 0.073, 90% CI [0.063, 0.083], CFI D 0.98, NNFI D 0.97, and SRMR D 0.053). The VQ showed strict invariance across countries and gender and showed theoretically coherent correlations with emotional symptoms, life satisfaction, experiential avoidance, and cognitive fusion. In conclusion, the Spanish version of the VQ demonstrated good psychometric properties in a large Spaniard sample
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