Custos de sistema de gestão de resíduos urbanos

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Teachers' and students' views and attitudes towards a new mathematics curriculum: A case study

The education system in Portugal is in the midst of a period of intensive reform. This paper describes the findings of a qualitative case study focusing on the views and attitudes of teachers and students participating in a pilot curriculum development programme stressing active methodologies and group work, conducted by the Ministry of Education In particular it discusses their views and attitudes about mathematics, mathematics teaching and curriculum innovation. The teachers were found to struggle with a contradiction: whilst they approved the new orientations, which were seen as adequate and innovative, they complained strongly about the design and implementation of the programme Students had a generally positive attitude towards mathematics, although there were differences among them. The 7th graders were satisfied with their mathematics classes and with the new curriculum. The 10th graders did not consider the changes as significant in themselves, but expressed concern for their academic progress

O conceito de número e a profissionalidade docente no ensino primário português

Este artigo encontra-se disponível no seguinte link: https://ojs.ghemat-brasil.com.br/index.php/ACERVO/article/view/29Este artigo analisa como a profissionalização docente para o ensino primário afeta conteúdos de matemática escolar, em especial o conceito de número. Para tal selecionámos dois livros utilizados na formação inicial de professores do ensino primário. O primeiro é um texto destinado, não só a escolas normais primárias, mas também escolas secundárias e técnicas, publicado pouco antes (1887) da entrada em vigor em 1901 da obrigatoriedade de um diploma docente para ingressar nas escolas primárias. O segundo, publicado em 1903, é destinado exclusivamente às escolas normais e é uma resposta a essa obrigatoriedade determinada em 1901. Centrámos a nossa análise no conceito de número. Assim, mais especificamente, procurámos saber como se manifestou a noção de número e a distinção entre espécies de números, que hoje designamos por conjuntos numéricos, antes e depois de 1901, quando se instituiu a obrigatoriedade de um diploma para o acesso à profissão de professor do ensino primário

Innovative Smart Grid Solutions for Network Planning and Access

Smart Grids are the cornerstone for Distribution System Operators transformation. Having new solutions to deal with historical and future problems is key to ensure a smooth transition to an advanced power system that not only integrate a large share of renewables and distributed energy resources (e.g. storage, electrical vehicles), but also requires efficient operation, better planning and exceptional customer service. EDP Distribuição is at the forefront of this transformation, as it is developing Inovgrid, a smart grid project in Évora city (Portugal), where a smart grid infrastructure was deployed, and new data is now available to incorporate in planning and access tools and procedures, hence contributing to a Smarter Grid. This paper discusses the results that EDP Distribuição has attained so far in these areas of the smart grid development, as well as the projected evolution of these innovative approaches to the future of the distribution grid, which are being developed in European projects like SuSTAINABLE (www.sustainableproject.eu)

Perspectivas de Professores Sobre o Ensino e Aprendizagem da Matemática na Experiência Veiga Simão

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Iberia01: A new gridded dataset of daily precipitation and temperatures over Iberia

The present work presents a new observational gridded dataset (referred to as Iberia01) for daily precipitation and temperatures produced using a dense network (thousands) of stations over the Iberian Peninsula for the period 1971?2015 at 0.1∘ regular (and 0.11∘ CORDEX-compliant rotated) resolutions. We analyze mean and extreme indices and compare the results with the E-OBS v17 dataset (using both the standard and ensemble versions, at 0.25 and 0.1∘ resolutions, respectively), in order to assess observational uncertainty in this region. We show that Iberia01 produces more realistic precipitation patterns than E-OBS for the mean and extreme indices considered, although both are comparable for temperatures. To assess the differences between these datasets, a new probabilistic intercomparison analysis was performed, using the E-OBS ensemble (v17e) to characterize observational uncertainty and testing whether Iberia01 falls within the observational uncertainty range provided by E-OBS. In general, uncertainty values are large in the whole territory, with the exception of a number of kernels where the uncertainty is small, corresponding to the stations used to build the E-OBS grid. For precipitation, significant differences ? at the 10 % level ? between both datasets were found for fewer than 25 % of days over the Iberian Peninsula. For temperature, a very inhomogeneous spatial pattern was obtained, with either a small (in most of the regions) or large fraction of significantly different days, thus indicating sensible regions for observational uncertainty.This research has been partially funded by the Spanish R&D program MINECO/FEDER (grant no. CGL2015-66583-R, project MULTI-SDM), the Portuguese Foundation for Science and Technology – FCT (grant no. PTDC/GEOMET/7078/2014, SOLAR project; grant no. UID/GEO/50019/2019, Instituto Dom Luiz)

Caracterização dos índices de excesso de peso, desempenho motor, cognitivo e estilos de vida de crianças e idosos que partilham o mesmo espaço institucional

O objetivo deste estudo foi caraterizar o desempenho motor, cognitivo, estilos de vida e índices de obesidade, de crianças e idosos que partilham o mesmo espaço institucional. A amostra foi constituída por 83 sujeitos, 42 idosos e 41 crianças. O MMSE, o teste de equilíbrio dinâmico e estático de Bohannon foram aplicados aos idosos, as MPCR e a PDMS -2, às crianças. Os índices de obesidade foram avaliados pelo IMC, e a AF por um questionário. Crianças e idosos apresentaram elevados índices de obesidade (21,9%; 92,8%); 26,8% das crianças excederam as recomendações de TV; 39,5% obtiveram uma proficiência mínima e um índice intelectualmente superior. Os idosos apresentaram alterações no equilíbrio; 84,2% cumpriam as recomendações de AF; passaram 153,16 minutos/dia a ver TV e 29,3% apresentaram défice cognitivo. Os elevados índices de obesidade e a reduzida competência motora das crianças e dos idosos são preocupantes, pelo que deverão ser implementados programas de intervenção

Avaliação do gasto energético em amputados de membro inferior utilizando o Six-Minute Walk Test

A capacidade de deambulação apresenta um significado bastante importante para a população em geral, uma vez que contribui para a manutenção do estado de saúde e para a reabilitação e melhoria da condição física, de uma forma geral. A amputação de um membro inferior, com ou sem abordagem protésica, impõe, ao amputado, um aumento no gasto energético durante a deambulação. A medição do gasto energético durante a marcha em amputados serve, não só para quantificar o esforço requerido, mas também para comparar a eficácia de diferentes componentes protésicos. Objetivos do estudo - Determinação dos fatores que influenciam a capacidade funcional dos amputados do membro inferior. Perceção do impacto das características pessoais, quadro clínico, hábitos e fatores comportamentais, bem como componentes protésicos no consumo de oxigénio e capacidade de deambulação

Classe de Letras

info:eu-repo/semantics/publishedVersio

Added value of EURO-CORDEX high-resolution downscaling over the Iberian Peninsula revisited - Part 1: Precipitation

ABSTRACT: Over the years, higher-resolution regional climate model simulations have emerged owing to the large increase in computational resources. The 12 km resolution from the Coordinated Regional Climate Downscaling Experiment for the European domain (EURO-CORDEX) is a reference, which includes a larger multi-model ensemble at a continental scale while spanning at least a 130-year period. These simulations are computationally demanding but do not always reveal added value. In this study, a recently developed regular gridded dataset and a new metric for added value quantification, the distribution added value (DAV), are used to assess the precipitation of all available EURO-CORDEX hindcast (1989-2008) and historical (1971-2005) simulations. This approach enables a direct comparison between the higher-resolution regional model runs against their forcing global model or ERA-Interim reanalysis with respect to their probability density functions. This assessment is performed for the Iberian Peninsula. Overall, important gains are found for most cases, particularly in precipitation extremes. Most hindcast models reveal gains above 15 %, namely for wintertime, while for precipitation extremes values above 20% are reached for the summer and autumn. As for the historical models, although most pairs display gains, regional models forced by two general circulation models (GCMs) reveal losses, sometimes around -5% or lower, for the entire year. However, the spatialization of the DAV is clear in terms of added value for precipitation, particularly for precipitation extremes with gains well above 100 %.Financial support. João António Martins Careto is supported by the Portuguese Foundation for Science and Technology (FCT) with the doctoral grant SFRH/BD/139227/2018 financed by national funds from the MCTES within the Faculty of Sciences, University of Lisbon. Pedro Miguel Matos Soares would like to acknowledge the financial support of FCT through project UIDB/50019/2020 (IDL and EEA-Financial Mechanism 2014–2021) and the Portuguese Environment Agency through Pre-defined Project-2 National Roadmap for Adaptation XXI (PDP-2). Rita Margarida Cardoso is supported by the FCT under the project LEADING (PTDC/CTA-MET/28914/2017). This work was also supported by project FCT UIDB/50019/2020 – Instituto Dom Luiz (IDL)