136 research outputs found

    Effects of structural rehabilitation on nutrient retention and uptake, community assemblages, and functional morphology of biotic communities in a small Midwestern stream

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    U.S. Department of the InteriorU.S. Geological SurveyOpe

    Corpógrafo and NooJ: using linguistic resources to obtain aligned concordances from corpora

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    In this presentation we will describe the integration of NooJ within the Corpógrafo environment. We will demonstrate how the NooJ corpus processing engine and linguistic resources are used in Corpógrafo for extracting lexical bundles and for obtaining simple concordances from corpora and aligned concordances from parallel corpora, and how we are implementing the search for "parallel" concordances in comparable corpora

    O trabalho colaborativo entre o docente de educação especial e os docentes do ensino regular : ponte ou fosso?

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    A presente investigação parte do contexto profissional da investigadora e da convicção de que um trabalho colaborativo entre o docente de Educação Especial e os professores do ensino regular poderá acarretar inúmeros benefícios. Deste modo, a constatação do que efetivamente acontece no terreno assume toda a centralidade da nossa investigação - de que forma é que os professores descrevem e interpretam a forma como se operacionaliza, ou não (e porquê), uma cultura de colaboração entre o docente de ensino regular e o docente de Educação Especial, de modo a contribuir, não só para práticas mais inclusivas e conducentes ao sucesso educativo de alunos com NEE, mas também para o seu próprio desenvolvimento profissional. Foi adotada uma metodologia essencialmente qualitativa e interpretativa, com a opção de uma investigação aproximada a um estudo de caso (embora, não possa ser assim considerada). As técnicas e instrumentos utilizados para a recolha de dados incluem os inquéritos por questionário, as entrevistas semi- -estruturadas e a análise documental. Para a realização deste estudo, aplicou-se o inquérito por questionário a 14 docentes de Educação Especial e a 71 docentes do ensino regular (de diferentes graus de ensino), a lecionar num mesmo agrupamento de escolas pertencente ao QZP1. Recorreu-se, também, à realização de entrevistas ao Diretor do Agrupamento, a 2 professores de Educação Especial e a 2 docentes do ensino regular, assim como à análise documental de PEIs. A informação obtida foi sujeita a análise estatística e análise de conteúdo, tendo sido, posteriormente, feita a triangulação dos dados recolhidos. Os principais resultados obtidos levam a crer que, apesar de alguns avanços, verifica-se, ainda, procedimentos de colaboração algo incipientes e pouco sistemáticos. Assim sendo, a ponte entre o docente de educação especial e os professores do ensino regular está a assistir à construção dos seus alicerces, sendo que o fosso ainda poderá (co)existir em algumas área de atendimento aos alunos com NEE no contexto do Agrupamento onde procedemos à nossa investigação.This research stems from the investigator’s professional context and it is motivated by the conviction that a collaborative work between Special Education Teachers and Regular Education Teachers may bring several benefits. Thus, the consciousness of what actually happens on the ground assumes all the centrality of our research - how teachers describe and interpret,the way a culture of collaboration is operacionalized or not (and why) between the regular education teachers and special education teachers in order to contribute, not only to more inclusive practices and conductive to the academic success of students with special educational needs, but also to their own professional development A predominantly qualitative and interpretative methodology was adopted, as well as the choice of a kind of a case study (although it can not be so regarded). The techniques and instruments used to gather the data included questionnaire surveys, semi-structured interviews and documental analysis. In this study, we applied the questionnaire survey to 14 Special Education teachers and to 71 regular education teachers (working in different levels of education), teaching in the same group of schools, belonging to QZP1. We also interviewed the School’s Headmaster, 2 Special Education teachers and 2 regular education teachers, as well as analyse sereval PEIs. The obtained information was subjected to statistical and content analysis and, afterwards, the triangulation of data was done. The main results suggest that, despite some progress, collaboration procedures are still in an embryonary and little systematic stage. Thus, the bridge between the special education teacher and regular education teachers is witnessing the construction of its foundations, and the moat can still (co) exist in some areas in what the pupils with Special Educational Needs care is concerned, in the context of de Group of Schools in which we made our research

    Streamwise vortices destabilize swimming bluegill sunfish (Lepomis macrochirus)

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    In their natural environment, fish must swim stably through unsteady flows and vortices, including vertical vortices, typically shed by posts in a flow, horizontal cross-flow vortices, often produced by a step or a waterfall in a stream, and streamwise vortices, where the axis of rotation is aligned with the direction of the flow. Streamwise vortices are commonly shed by bluff bodies in streams and by ships\u27 propellers and axial turbines, but we know little about their effects on fish. Here, we describe how bluegill sunfish use more energy and are destabilized more often in flow with strong streamwise vorticity. The vortices were created inside a sealed flow tank by an array of four turbines with similar diameter to the experimental fish. We measured oxygen consumption for seven sunfish swimming at 1.5 body lengths (BL) s−1 with the turbines rotating at 2 Hz and with the turbines off (control). Simultaneously, we filmed the fish ventrally and recorded the fraction of time spent maneuvering side-to-side and accelerating forward. Separately, we also recorded lateral and ventral video for a combination of swimming speeds (0.5, 1.5 and 2.5 BL s−1) and turbine speeds (0, 1, 2 and 3 Hz), immediately after turning the turbines on and 10 min later to test for accommodation. Bluegill sunfish are negatively affected by streamwise vorticity. Spills (loss of heading), maneuvers and accelerations were more frequent when the turbines were on than in the control treatment. These unsteady behaviors, particularly acceleration, correlated with an increase in oxygen consumption in the vortex flow. Bluegill sunfish are generally fast to recover from roll perturbations and do so by moving their pectoral fins. The frequency of spills decreased after the turbines had run for 10 min, but was still markedly higher than in the control, showing that fish partially adapt to streamwise vorticity, but not completely. Coping with streamwise vorticity may be an important energetic cost for stream fishes or migratory fishes

    Extensional flow behaviour of natural fibre-filled dough and its relationship with structure and properties

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    There is an increasing awareness about the role of fibres as multifunctional substances, positively affecting the activity of the human body. From the structural point of view, insoluble fibres are known to have a strong impact on food texture. This work is part of a broader project aimed at understanding the role of fibres from different sources in traditional cookies delectableness. The impact on cookie dough characteristics, when enriched with dietary fibre, was evaluated by dynamic oscillatory tests, transient uniaxial extensional viscosity measurements and texture profile analysis. Three different sources of fibre were added: oat from cereals, orange from fruits and pea from legumes, at contents ranging from 0 to 10 g. In terms of processibility, there were serious difficulties in processing some of these doughs, especially those with fibre addition levels over 8 g for oat and orange and 9–10 g for pea. However, the results for the mechanical spectra of these doughs are similar to that of the standard dough without fibre. Tests in compression with a 4mm cylinder in a 25mm flask filled with dough showed to be more sensitive than oscillatory tests but still the results were somewhat difficult to interpret in terms of describing the differences in the processing behaviour of these doughs. Thus, extensional uniaxial tests were performed (for the first time in this type of materials, i.e., with no developed gluten) and showed to be suitable to describe the modification in dough structure, showing an increase of extensional viscosity for the dough with orange or oat fibre at levels of 4, 8 and 10 g, whereas for the pea fibre dough, no significant changes on the extensional behaviour were observed for formulations with up to 10 g of fibre, which was in general agreement with the processibility studies

    Streamwise vortices destabilize swimming bluegill sunfish

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    In their natural environment, fish must swim stably through unsteady flows and vortices, including vertical vortices, typically shed by posts in a flow, horizontal cross-flow vortices, often produced by a step or a waterfall in a stream, and streamwise vortices, where the axis of rotation is aligned with the direction of the flow. Streamwise vortices are commonly shed by bluff bodies in streams and by ships’ propellers and axial turbines, but we know little about their effects on fish. Here, we describe how bluegill sunfish use more energy and are destabilized more often in flow with strong streamwise vorticity. The vortices were created inside a sealed flow tank by an array of four turbines with similar diameter to the experimental fish. We measured oxygen consumption for seven sunfish swimming at 1.5 body lengths (BL) s−1 with the turbines rotating at 2 Hz and with the turbines off (control). Simultaneously, we filmed the fish ventrally and recorded the fraction of time spent maneuvering side-to-side and accelerating forward. Separately, we also recorded lateral and ventral video for a combination of swimming speeds (0.5, 1.5 and 2.5 BL s−1 ) and turbine speeds (0, 1, 2 and 3 Hz), immediately after turning the turbines on and 10 min later to test for accommodation. Bluegill sunfish are negatively affected by streamwise vorticity. Spills (loss of heading), maneuvers and accelerations were more frequent when the turbines were on than in the control treatment. These unsteady behaviors, particularly acceleration, correlated with an increase in oxygen consumption in the vortex flow. Bluegill sunfish are generally fast to recover from roll perturbations and do so by moving their pectoral fins. The frequency of spills decreased after the turbines had run for 10 min, but was still markedly higher than in the control, showing that fish partially adapt to streamwise vorticity, but not completely. Coping with streamwise vorticity may be an important energetic cost for stream fishes or migratory fishes

    Eco-efficiency in Portuguese companies of marble sector

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    The activities developed within an eco-efficiency project in mineral industries located in the largest area for marble extraction in Portugal, in Alentejo region, in the Estremoz – Borba and Vila Viçosa anticline are presented in this paper. The project was designed to apply the sustainability concept in seven companies of marble extraction and transformation. The adopted strategy used new cleaner production models together with sustainable value (SV) improvement, leading to the rationalization of the industrial process, the involvement of economic agents and the orientation of the management of production processes towards eco-efficiency. The challenge was to have the mineral industry managing efficiently the resources on which the business depends, according to sustainability principles. Different opportunities for improvement, related to the minimization of materials, water and energy use, were identified in the companies. Some proposals mainly related to social improvement and small and medium-sized enterprise competitiveness benefits were also selected and discussed. This approach allows the integration of sustainability at company's and region's levels by combining in the entrepreneurial activity the creation of wealth together with the environment protection and the achieving of social benefits. Highlights: The involvement of different stakeholders in the project (Eco-efficiency in Portuguese companies of marble sector) was positive in the discussion and search of solutions for companies. It is possible to involve marble extraction and processing companies in eco-efficiency improvement towards sustainability. Companies from the marble sector improved environmental and social performance and reduced the costs of their production processes by applying SV methodology

    Metodologias para implementar Lean Production : uma revisão critica de literatura

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    Neste artigo pretende-se fazer uma revisão crítica de literatura sobre metodologias para implementar Lean Production. Lean Production é um modelo de organização da produção focado no cliente que procura a eliminação dos desperdícios (actividades que não acrescentam valor ao produto) e a entrega atempada de produtos, trazendo muitos benefícios para as empresas. O Lean Production utiliza ferramentas que vão permitir a melhoria dos processos, assim como melhorar os fluxos quer de materiais, quer de informação. Mas a utilização e implementação destas ferramentas exige uma mudança de cultura e estratégia empresarial, muitas vezes, uma mudança contra-intuitiva aos hábitos das pessoas. Para implementar Lean Production é necessário, assim, um caminho que conduza as empresas numa bem sucedida implementação. Neste artigo descreve-se algumas metodologias desenvolvidas para a implementação do Lean Production e faz-se uma reflexão sobre o que uma metodologia deve incluir

    Implementar o modelo de produção Lean na ITV para promover sistemas eco eficientes

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    O modelo de produção Lean é um modelo de organização da produção focado no cliente e na entrega atempada de produtos eliminando os desperdícios (i.e. atividades que não acrescentam valor ao produto) e respeitando as pessoas e o ambiente para reduzir os custos e aumentar a produtividade. Para o conseguir, este modelo recorre a princípios e ferramentas com objetivo de melhorar os processos e os fluxos de materiais, de informação e de pessoas. Nesta procura de melhoria é obrigatório reduzir os consumos de água, energia, matérias-primas e emissão de substâncias tóxicas que vão contaminar o solo, ar e água. Evidencia-se assim, neste artigo, esta relação entre o modelo de produção Lean e a eco-eficiência dos sistemas de produção, designada na literatura anglo-saxónica como Lean-Green.The Lean production model is a model of production organization focused on the customer and timely delivery of products, eliminating waste (e.g activities that do not add value to the product) and respecting people and the environment to reduce costs and increase productivity. To achieve this, this model uses principles and tools in order to improve the processes and flow of materials, information and people. In this quest for improvement it is mandatory to reduce the consumption of water, energy, raw materials and emission of toxic substances that will contaminate the soil, air and water. In this article, emphasis is given on the relationship between the model of lean manufacturing and ecoefficiency of production systems, known in the literature as Lean-Green

    caso Sensing Future

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