70 research outputs found

    Análise da relação entre o cronotipo e as diferentes componentes do processamento sensorial numa amostra de estudantes universitários

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    Introdução: O processamento sensorial é o processo neurológico responsável pela deteção, modulação e interpretação da informação sensorial proveniente do corpo e ambiente envolvente, com intuito de produzir respostas adaptativas que permitam o uso eficaz do corpo no ambiente. A preferência ou necessidade das pessoas se envolverem nas atividades predominantemente no período da manhã, tarde ou noite, expõem-nas a estímulos sensoriais que diferem na sua natureza, intensidade e combinação. A exposição a estímulos distintos daqueles com que habitualmente convivem, poderá desencadear respostas pouco adaptativas e comprometer o seu desempenho nas distintas ocupações. Objetivo: Analisar a relação entre o cronotipo e as diferentes componentes do processamento sensorial, com base numa amostra de estudantes universitários. Métodos: Este estudo, do tipo quantitativo, segue um desenho de natureza analítica observacional, de caráter transversal. A amostra foi constituída por 565 estudantes, com idades entre os 18 e 46 anos. A recolha de dados foi realizada através de um questionário online, constituído por um questionário sociodemográfico, pela SP Scale Inventory e pelo rMEQ. Para perceber a relação entre o cronotipo e as várias componentes do processamento sensorial utilizaram-se modelos de regressão hierárquica. Resultados: Verificou-se que as variáveis sociodemográficas não contribuem significativamente para a hiporresponsividade (p = 0.133), enquanto a introdução do cronotipo contribuiu significativamente para a mudança no modelo de regressão (p = 0.001), explicando 2% adicionais da sua variação. Observou-se que as variáveis sociodemográficas não contribuem significativamente para o score da subescala praxis (p = 0.631), porém a introdução do cronotipo contribuiu significativamente para a mudança no R2 (p = 0.026), explicando 0.9% adicionais da sua variação. Na postura, existe uma tendência estatística para a contribuição do cronotipo (p = 0.062), o que acrescenta apenas 0.6% de variação ao modelo. Conclusão: O cronotipo está associado a caraterísticas interindividuais do processamento sensorial, nomeadamente à hiporresponsividade e à praxis, embora seja relativamente baixa. Pessoas predominantemente matutinas parecem demonstrar mais caraterísticas sensoriais de hiporresponsividade e as notívagas mais dificuldades na praxis e na postura

    A aquisição de competências musicais no ensino da Técnica de Dança Clássica no 2º ano no Conservatório de Música da Jobra

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    Relatório Final de Estágio apresentado à Escola Superior de Dança, com vista à obtenção do grau de Mestre em Ensino de Dança.O presente relatório, elaborado no âmbito da primeira edição do Mestrado em Ensino de Dança da Escola Superior de Dança, consiste na sistematização e reflexão sobre os procedimentos que envolveram a realização do estágio com a turma de 2º ano do Curso Oficial de Dança do Conservatório de Música da Jobra. Tendo como principais objetivos a aquisição de conteúdos e o desenvolvimento de competências musicais no âmbito da disciplina de Técnica de Dança Clássica, este estágio pretendeu explorar e melhorar a sensibilidade musical dos alunos e a sua relação com o movimento através do domínio de diversos conteúdos musicais. Assim, como resultado deste processo, temos a definição de um plano de trabalho que articula o ensino destes conteúdos com a implementação de exercícios e tarefas no contexto da disciplina a que nos referimos. Durante a realização do estágio foi aplicada a metodologia de investigação-ação, que se caracteriza pela implementação de um plano de ação cujo objetivo é a resolução de um problema real e concreto no contexto em que ocorre. Podemos assim dizer que a investigação-ação consiste num método que promove a alteração da realidade e dos seus intervenientes através de um processo cíclico de análise e auto avaliação constantes. Após a conclusão do estágio e posterior análise dos seus resultados, verificou-se que a aplicação do plano de trabalho foi ao encontro dos objetivos estipulados para este projeto. Foi também possível observar que o mesmo foi acolhido com entusiasmo e empenho por parte dos alunos com o qual foi desenvolvido, tendo-se revelado igualmente um sucesso quanto à integração e articulação com a instituição de acolhimento.ABSTRACT - This final report has been written as part of the first edition of the Mestrado em Ensino de Dança (Masters Degree in Dance Teaching) at Escola Superior de Dança and is the result of the work carried out with the second grade class in Vocational Dance Studies at Conservatório de Música da Jobra. Its purpose is to describe, organize and reflect on the multiple procedures and results of the one year-long internship that took place at this institution and its main focus is the research and study of the role of musicality in the teaching of Classical Dance Technique. The results of the internship we are now presenting provided the opportunity to develop a work plan that promotes the study and enhancement of the student’s musicality and its influence on movement by means of mastering several music components. The outcome of this process consists of a lesson plan that articulates relevant music theory with a number of exercises and tasks, to be implemented as part of the work carried out in Classical Dance Technique classes with younger students. Throughout the development and execution of the lesson plan, the research was carried out by applying a qualitative methodology based on action research, a method which consists in the observing and systematic recording of data from different classes and also the constant analysis of that information when (re)adjusting the tools and proceedings to implement in the final stage of the internship. Upon conclusion of the internship, the revision and analysis of the results confirm that the goals set out in the beginning of the process were accomplished and that this project was met with enthusiasm and commitment by all the students with whom it was developed

    A efetividade do oxigénio nasal de alto fluxo na insuficiência respiratória: revisão sistemática

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    Background: respiratory insufficiency is a syndrome with a great impact on hospital admissions, morbidity and mortality. The applicability of High-flow nasal oxygen has been the subject of interest in critically ill patients. Objective: to know the effectiveness of High-flow nasal oxygen as a treatment for respiratory insufficiency in adult patients admitted to the intensive care units. Methods: systematic reviews of effectiveness using the PICO strategy and recommendations from the Joanna Briggs Institute. The survey was carried out in august 2021 using the PubMed and EBSCOhost access platforms. Results: 583 results were identified. Six randomized clinical trials were analyzed. The selection was made after elimination of duplicates; title reading, abstract reading and full text reading according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses diagram. Conclusion: high-flow nasal oxygen proved to be comfortable, tolerable and effective in the treatment of hypoxemic and hypercapnic respiratory insufficiency. It was effective when compared with conventional oxygen therapy in the post-extubation of hypoxemic patients and in reducing partial pressure of carbon dioxide when compared with Non-Invasive Ventilation in hypercapnic patients.Marco contextual: la insuficiencia respiratoria es un síndrome que tiene un gran impacto en los ingresos hospitalarios, la morbilidad y mortalidad. La aplicabilidad del oxígeno nasal de alto flujo ha sido objeto de interés en pacientes críticos. Objetivo: conocer la efectividad del oxígeno nasal de alto flujo en el tratamiento de la insuficiencia respiratoria en adultos en unidades de cuidados intensivos. Métodos: revision sistemática de efectividad utilizando la estrategia PICO y recomendaciones del Instituto Joanna Briggs. La búsqueda se llevó a cabo en agosto de 2021 utilizando las plataformas de acceso PubMed y EBSCOhost. Resultados: se identificaron 583 resultados. Se analizaron seis ensayos clínicos aleatorios. La selección se realizó después de la eliminación de duplicados; lectura de títulos, de resúmenes y de texto completo siguiendo el diagrama Preferred Reporting Items for Systematic Reviews and Meta-Analyses. Conclusión: el Oxígeno nasal de alto flujo demostró ser cómodo, tolerable y eficaz en el tratamiento de la insuficiencia respiratoria hipoxémica e hipercápnica. Fue eficaz en comparación con la oxigenoterapia convencional en la postextubación de pacientes hipoxémicos y en la reducción de la presión parcial de dióxido de carbono en comparación con la Ventilación No Invasiva en pacientes hipercápnicos.Enquadramento: a insuficiência respiratória é uma síndrome com grande impacto nos internamentos, na morbilidade e mortalidade. A aplicabilidade do oxigénio nasal de alto fluxo tem sido alvo de interesse no doente crítico. Objetivo: conhecer a efetividade do oxigénio nasal de alto fluxo no tratamento da insuficiência respiratória no adulto em unidades de cuidados intensivos. Métodos: revisão sistemática de efetividade que utiliza a estratégia PICO e recomendações do Joanna Briggs Institute. A pesquisa foi realizada em agosto de 2021 com recurso às plataformas de acesso PubMed e EBSCOhost. Resultados: identificaram-se 583 resultados. Foram analisados seis ensaios clínicos randomizados. A seleção foi feita após eliminação de duplicados; leitura do título, resumos e textos integrais de acordo com o diagrama Preferred Reporting Items for Systematic Reviews and Meta-Analyses. Conclusão: o oxigénio nasal de alto fluxo revelou-se confortável, tolerável e eficaz no tratamento da insuficiência respiratória hipoxémica e hipercápnica. Foi eficaz quando comparado com oxigenoterapia convencional na pós-extubação de doentes hipoxémicos e na redução da pressão parcial de dióxido de carbono quando comparado com a Ventilação Não Invasiva nos doentes hipercápnicos

    Linking short- to medium-term beach dune dynamics to local features under wave and wind actions: a northern portuguese case study

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    Many coasts suffer from prevailing erosion, with them being particularly vulnerable to predicted climate change impacts, threatening coastal ecosystems, their services, infrastructures and populations. Understanding coastal morpho-sedimentary dynamics is thus essential for coastal management. However, coastal vulnerability may differ locally, depending on exposure/protection and local geological and morpho-hydrodynamical features, suggesting that a local approach to erosion risk assessment is needed to identify and understand local patterns. Digital elevation models of a 14 km long coastal stretch in northern Portugal that were extracted from aerial surveys obtained between November 2008 and February 2019 were analysed to quantify changes in shoreline position and sediment budgets, both for the whole study area and for distinct beach segments. The observed dynamics were subsequently analysed by considering prevailing wave and wind intensities and directions. Overall and during the decade analysed, the beach–dune system of the studied stretch slightly increased in volume (0.6%), although the shoreline retreated (by 1.6 m on average). Temporal variability in coastal dynamics was observed at all of the temporal scales considered—from seasons to 5-year periods—with them being related to variability in ocean and wind patterns. There was a trend from accretional to erosional conditions, with the first 5-year period showing a mean increase in the beach–dune system’s volume of 0.6% and a mean shoreline progradation of 1.5 m, followed by 5-years with 0.0% volume change and 3.1 m shoreline retreat. Locally, the dynamics were very variable, with shoreline dynamics ranging from 24.0 m regression to 51.5 m progradation, and sediment budgets from 213.8 m3 loss to 417.0 m3 gain, per segment and for the decade. Stretches with relatively stable morphologies and others with erosional or accretional trends were found, depending on the beach type, shoreline orientation and the presence of defence structures. Rocky beaches were the least dynamic and sandy beaches the most dynamic, with mean shoreline position changes of 0.0 m and −3.4 m, respectively, and mean sediment budgets of −1.1 m3 and −2.9 m3 per linear meter of coastline, respectively, for the studied decade. The observed dynamics showed how local conditions interacted with meteo-ocean conditions in shaping local morpho-sedimentary dynamics, stressing the importance of a local approach to coastal erosion monitoring and risk assessment.European Union MarRISK project: Adaptación costera ante el Cambio Climático: conocer los riesgos y aumentar la resiliencia (0262_MarRISK_1_E) through EP INTERREG V A España-Portugal (POCTEP) program and the project INNOVMAR-Innovation and Sustainability in the Management and Exploitation of Marine Resources (NORTE-01-0145-FEDER-000035, within Research Line ECOSERVICES), supported by NORTE 2020, under the PORTUGAL 2020 Partnership Agreement, through the ERD

    Numerical modeling tools applied to estuarine and coastal hydrodynamics: a user perspective

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    Estuarine and coastal areas have been intensively studied given their complexity, ecological, and societal value and the importance of their ecosystem services. Estuarine and coastal management must be based on a sound characterization of these areas, which is achievable complementing the comprehensive field measurements with numerical models solutions. Based on a detailed comparison between two close-by, but extremely different, Portuguese estuaries (the Douro and Minho estuaries), this chapter intends to discuss how accurately numerical modeling tools can provide relevant information for a variety of coastal zones. They can be very useful for various applications in the planning and management fields, such as coastal and infrastructures protection, harbor activities, fisheries, tourism, and coastal population safety, thus supporting an effective and integrated estuarine and coastal management, which must consider both the safety of the populations and the sustainability of the marine ecosystems and services. In particular, the capacity of the numerical models to give a detailed characterization of morpho-hydrodynamic processes, as well as assess and predict the effects of anthropogenic interventions, extreme events and climate change effects, are presented.This research was partially supported by the Strategic Funding UID/Multi/ 04423/2013 through national funds provided by FCT—Foundation for Science and Technology and European Regional Development Fund (ERDF). This contribution has also been funded by project EsCo-Ensembles (PTDC/ECI-EGC/30877/2017), co-funded by NORTE2020, Portugal 2020, and the European Union through the ERDF, and by FCT through national funds

    Contaminated soils and sediments associated with Zn ore metallurgy near the São Francisco River, Minas Gerais (Brazil)

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    Draining through industrial areas of the Minas Gerais mining state (Brazil), some tributaries of the São Francisco River constitute a potential environmental hazard for this great river and threaten the quality of the regional soils for agriculture and other activities. Extensive geochemistry and mineralogy of sediments, soils and alluvial plains from six selected areas within the Consciência drainage basin close to an important Zn-extraction plant, have been carried out. In this report, detailed mineralogy of those samples and supporting geochemical data are discussed, taking into account their specific climactic and environmental context. Petrographic and electron microprobe characterization of the sand-grained fraction of these materials was complemented by XRD on their finer fraction: the main contaminant minerals are willemite (one of the Zn ores used in the industrial plant) and jarosite, though their contents are quite variable in the studied areas and also with depth; minor amounts of Zn-, Pb-, Cd-, and Mn-bearing mineral phases are also frequent, usually as inclusions in willemite or in polycrystalline clasts, or adsorbed on the finer materials, such as clay minerals and associated Fe-hydroxides. Mineralogical contamination is responsible for high metal contents in the soils and sediments of the areas closer to the plant (e.g. Zn ≫ 2000 mg kg−1 and Cd ≫ 20 mg kg−1, which are the Intervention Values for Industrial Areas) and the greatest contamination risks are related to the more labile phases that circulate throughout the alluvial plains, the shallow sediments and the stream bed. Monitoring the mineral/chemical contamination and its extent also constitutes a useful basis for future proposals to remediate and recover this industrial area in order to decrease medium- and long-term negative impacts of metal contamination on the local and downstream environments

    Plasma phospholipidomic profile differs between children with phenylketonuria and healthy children

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    Phenylketonuria (PKU) is a disease of the catabolism of phenylalanine (Phe), caused by an impaired function of the enzyme phenylalanine hydroxylase. Therapeutics is based on the restriction of Phe intake, which mostly requires a modification of the diet. Dietary restrictions can lead to imbalances in specific nutrients, including lipids. In the present study, the plasma phospholipidome of PKU and healthy children (CT) was analysed by HILIC-MS/MS and GC-MS. Using this approach, 187 lipid species belonging to 9 different phospholipid classes and 3 ceramides were identified. Principal component analysis of the lipid species dataset showed a distinction between PKU and CT groups. Univariate analysis revealed that 146 species of phospholipids were significantly different between both groups. Lipid species showing significant variation included phosphatidylcholines, containing polyunsaturated fatty acids (PUFA), which were more abundant in PKU. The high level of PUFA-containing lipid species in children with PKU may be related to a diet supplemented with PUFA. This study was the first report comparing the plasma polar lipidome of PKU and healthy children, highlighting that the phospholipidome of PKU children is significantly altered compared to CT. However, further studies with larger cohorts are needed to clarify whether these changes are specific to phenylketonuric children.publishe

    Coastal erosion: a northern-portuguese case study

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    Ponencia presentada en: XII Congreso de la Asociación Española de Climatología celebrado en Santiago de Compostela entre el 19 y el 21 de octubre de 2022.[EN]Coasts are socio-economically and ecologically highly important, yet vulnerable zones. Increasing pressure from human activities, like tourism, growing settlements and development of infrastructures, as well as climate change impacts, such as predicted sea-level rise and intensification of extreme climate, are likely to increase coastal vulnerability. Coastal Zone Management requires thus an evaluation of coastal dynamics, vulnerability and risks. The present work studied the morpho-sedimentary dynamics of the Northern-Portuguese Atlantic coast, between Caminha and Espinho. Digital terrain and surface models, derived from LiDAR and aerial photography survey data, collected in 2011, 2017 and 2018, were used to assess beach and dune morphology and to quantify morphodynamics. Coastal dynamics was analysed considering the types of beaches found in the region, being predominantly sandy beaches, sandy beaches with rocky outcrops, pebble and rocky beaches and dominant wind and wave conditions.[ES]Las áreas costeras son zonas de gran importancia socioeconómica y ecológica, pero a su vez son muy vulnerables. La vulnerabilidad de estas áreas puede aumentar con la creciente presión de las actividades humanas, como el turismo, el crecimiento de las zonas urbanas y el desarrollo de infraestructuras, así como con los impactos del cambio climático, como el aumento previsto del nivel del mar y la intensificación de extremos climáticos. Por lo tanto, es importante evaluar la vulnerabilidad y los riesgos para promover una gestión eficaz e integrada de las zonas costeras. El presente trabajo estudió los riesgos de erosión para la costa atlántica del norte de Portugal, entre Caminha y Espinho. Para evaluar la morfología de playas y dunas, y para cuantificar los procesos morfodinámicos, se utilizaron modelos digitales de terreno y de superficie, derivados de LiDAR y también datos de campañas de fotografía aérea, para los años 2011, 2017 y 2018. Se analizó la dinámica costera considerando los tipos de playas que se encuentran en la región, siendo predominantemente playas arenosas, playas arenosas con afloramientos rocosos, cantos rodados y playas rocosas, y también las condiciones predominantes de viento y oleaje.This research was partially supported by the Strategic Funding UIDB/04423/2020 and UIDP/04423/2020 through national funds provided by FCT—Foundation for Science and Technology and European Regional Development Fund (ERDF). This work was further funded by the European Union MarRISK project: Adaptación costera ante el Cambio Climático: conocer los riesgos y aumentar la resiliencia (0262_MarRISK_1_E), through EP INTERREG V A España-Portugal (POCTEP) program, and by the project EsCo-Ensembles (PTDC/ECI-EGC/30877/2017), co-financed by NORTE 2020, Portugal 2020 and the European Union through the ERDF, and by FCT through national funds

    Hydro- and morphodynamic impacts of sea level rise: The Minho estuary case study

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    The understanding and anticipating of climate change impacts is one of the greatest challenges for humanity. It is already known that, until the end of the 21st century, the mean sea level (MSL) will rise at a global scale, but its effects at the local scale need to be further analyzed. In this context, a numerical modelling tool and a methodological approach for the river Minho estuary (NW of the Iberian Peninsula) are presented, to predict possible consequences of local MSL rise, considering the greenhouse emission scenarios RCP 4.5 and RCP 8.5. Hydrodynamic and morphodynamic impacts were analyzed considering several driving factors, such as tides, sea level rise, storm surge, wave set-up, and different river flood peak discharges, taking into account their probabilities of occurrence. The model was calibrated using in-situ data and a data assimilation tool, the OpenDA, which automates this process, allowing to reach reliable results in a considerably short time when compared with traditional techniques. The results forecast that the predicted MSL rise will reduce the flow velocity magnitude and the sediment transport into the coastal platform but will aggravate the inundation risks along the estuarine banks. In the worst scenario (RCP 8.5) the water level near the river mouth of the estuary is expected to rise 0.20 m for 50 years return period ocean water rising, and 0.60 m for 100 years return period. It was also possible to identify that floods are the most important driver for the sediment transport along the estuary, while the tide effect in the morphodynamics is restricted to the downstream estuarine region. This work demonstrated the importance of the numerical modelling tools to better understand the effects of climate change at local scales through the representation of the estuarine hydrodynamic pattern evolution for future climate scenarios.This research was partially supported by the Strategic Funding UID/Multi/04423/2019 through national funds provided by FCT—Foundation for Science and Technology and European Regional Development Fund (ERDF). This contribution has also been funded by the European Union MarRISK project: Adaptación costera ante el Cambio Climático: conocer los riesgos y aumentar la resiliencia (0262_MarRISK_1_E), through the EP INTERREG V A España-Portugal (POCTEP) program. The authors want also to acknowledge the contract funds provided by the project EsCo-Ensembles (PTDC/ECI-EGC/30877/2017), co-financed by NORTE 2020, Portugal 2020 and the European Union through the ERDF, and by FCT through national funds
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