973 resultados para Pereira


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Este relatório está inserido no âmbito da disciplina Prática de Ensino Supervisionada (PES), que permitirá a obtenção do grau de Mestre em Ensino de Educação Física nos Ensinos Básico e Secundário. O relatório de estágio aborda o trabalho desenvolvido realizado durante o ano lectivo 2009/201O, como professor estagiário, na Escola EB 2,3 Conde de Vilalva, na Escola Secundária Gabriel Pereira e na Escola Básica 1-Jardim de Infância do Bacelo. No final do estágio foi possível afirmar que o que aprendemos ao longo deste ano lectivo nos acompanhará para o resto da vida profissional e social, uma vez que este estágio curricular veio complementar a formação adquirida durante a Licenciatura, auxiliando na incrementação das competências técnico­ científicas, sociais e pessoais, indispensáveis a esta actividade profissional. ABSTRACT: This report is inserted in the supervised teaching subject, as known as Prática de Ensino Supervisionada (PES), which purpose is to obtain Master's degree in Physical Education in primary and secondary education. The stage report deals with all the work developed during 2009/201O school year, as a student teacher, in Escola EB 2,3 Conde de Vilalva, Escola Secundária Gabriel Pereira and in Escola Básica 1-Jardim de Infância do Bacelo. At the end of the stage, it was possible to state that what we have learned past this year will be useful and will be with us for the rest of our professional and social life due the formation acquired during graduation, improving technical, scientific, social and personal skills that are vital and indispensable to this professional activity.

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Este trabalho tem por base o relato de um ano lectivo 2009/201O de Prática de Ensino Supervisionada (PES) para a especialidade do grau de Mestre em Ensino de Educação Física nos Ensinos Básico e Secundário, leccionado na Universidade de Évora e contribui para a avaliação do mesmo. O estágio foi realizado no agrupamento de Escolas n° 4 de Évora - EB 2,3 Conde de Vilalva; EB1 Jardim de Infância e Escola Secundária Gabriel Pereira, abrangendo os três ciclos de aprendizagem dando assim cumprimento à exigência curricular. Relata de forma sucinta a preparação científica, pedagógica e didáctica desde o conhecimento do currículo, do conteúdo e dos alunos. Desenvolve de forma fundamentada a planificação, condução de aulas e avaliação das aprendizagens. Faz uma análise das actividades desenvolvidas como professor de uma disciplina e como participante activo na escola e na comunidade escolar. Tenta fundamentar as estratégias, metodologias e decisões tomadas. Por último, realiza uma análise da prática de ensino. O que foi constatado nesta pequena experiência foi uma prática mais consciente e um respeito maior, por nós mesmo, enquanto profissional da educação, e pelos alunos, enquanto sujeitos activos no processo de ensino/aprendizagem. ABSTRACT: This work is based on the report of an academic year 2009/2010 Supervised Teaching Practice (PES) for the specialty Master's degree in Teaching Physical Education in Primary and Secondary Schools, taught at the University of Évora and contribute to the evaluation the same. The group stage was held at school n8 4 EB 2,3 Conde Vilalva e Kindergarten and Secondary school Gabriel Pereira, covering the three cycles of learning thus fulfilling the curricular requirement. Reports briefly the scientific training and didactic knowledge from the curriculum the content and pupils. Develop and informed opinion to planning, conducting classes and learning assessment. Makes and analyses of the activities as a teacher of a discipline and as an active participant in school and school community. Try the strategies, methodologies and decisions. Finally makes an analysis of teaching practice. What was found on this little experiment was a more conscious practice and a greater respect for ourselves as professional education, and students as active participants in the teaching /learning.

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Este estudo foi realizado com o objetivo de analisar o impacto antrópico comparando as populações de macrofauna de solo de diferentes sistemas ambientais. A avaliação do impacto na variabilidade e quantidade da macrofauna comparadas entre si permitirá a criação de um índice bioindicador expedito de qualidade ambiental, que poderá ser utilizado pelo produtor, auxiliando no registro da evolução dos processos de degradação ou recuperação de uma área. Para realizar este trabalho, foram escolhidos nove locais para armadilhas, sendo oito na unidade da Embrapa Uva e Vinho (pomar orgânico, capoeira, bosque, pomar pequenos frutos, campo nativo, pomar em implantação, pomar convencional, área de pinnus) e uma lavoura de grãos ao lado da unidade, todos com as mesmas condições de clima e solo.

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A falta de cultivares adaptadas e a irregularidade e baixa produtividade dos pomares estão entre as principais causas do insucesso a cultura da pereira no Brasil. Anualmente, em torno de 90% da pera consumida no país é importada, especialmente da Argentina e do Chile. A região Nordeste do Rio Grande do Sul possui bom potencial para a produção de pera, necessitando-se, no entanto, em um primeiro momento, definir as cultivares mais bem adaptadas às condições climáticas locais. O objetivo do trabalho é avaliar a adaptação de cultivares europeias e híbridas de pereira em Vacaria, RS, visando a recomendação de uso.

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A principal finalidade da hibridação é a obtenção de populações segregantes, a partir das quais indivíduos superiores podem ser selecionados. A falta de porta-enxertos adaptados para cultura da pereira no Brasil faz com que técnicas como o melhoramento genético clássico sejam aplicadas. Deste modo, para obtenção e seleção do material adequado a busca por segregação genética é continua, sendo utilizadas como alternativa cultivares copas. Com o objetivo específico de obter uma população segregante, visando à avaliação na frutificação efetiva, quantidade de sementes e massa e diâmetro de frutos oriundos de polinização aberta e dirigida, foram realizados seguintes cruzamentos: T1- Polinização aberta; T2- autopolinização de Willian?s e T3- Willian?s X Santa Maria (doadora de pólen). O delineamento experimental utilizado foi inteiramente casualizado com três repetições de 20 polinizações dirigida por tratamento. A polinização aberta resultou em maior frutificação efetiva. Já massa e diâmetro dos frutos não diferiu entre os tratamentos. A polinização aberta resultou em maior número de sementes, provavelmente devido a presença de abelhas no pomar.

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Proyecto de Actualización Cartográfica de usos de la Tierra a escala 1:10.000 GAM de Costa Rica. Elaboración de Cartografía digital y Ortofotos.

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In this paper, the optimal design of an active flow control device; Shock Control Bump (SCB) on suction and pressure sides of transonic aerofoil to reduce transonic total drag is investigated. Two optimisation test cases are conducted using different advanced Evolutionary Algorithms (EAs); the first optimiser is the Hierarchical Asynchronous Parallel Evolutionary Algorithm (HAPMOEA) based on canonical Evolutionary Strategies (ES). The second optimiser is the HAPMOEA is hybridised with one of well-known Game Strategies; Nash-Game. Numerical results show that SCB significantly reduces the drag by 30% when compared to the baseline design. In addition, the use of a Nash-Game strategy as a pre-conditioner of global control saves computational cost up to 90% when compared to the first optimiser HAPMOEA.

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Data collection using Autonomous Underwater Vehicles (AUVs) is increasing in importance within the oceano- graphic research community. Contrary to traditional moored or static platforms, mobile sensors require intelligent planning strategies to manoeuvre through the ocean. However, the ability to navigate to high-value locations and collect data with specific scientific merit is worth the planning efforts. In this study, we examine the use of ocean model predictions to determine the locations to be visited by an AUV, and aid in planning the trajectory that the vehicle executes during the sampling mission. The objectives are: a) to provide near-real time, in situ measurements to a large-scale ocean model to increase the skill of future predictions, and b) to utilize ocean model predictions as a component in an end-to-end autonomous prediction and tasking system for aquatic, mobile sensor networks. We present an algorithm designed to generate paths for AUVs to track a dynamically evolving ocean feature utilizing ocean model predictions. This builds on previous work in this area by incorporating the predicted current velocities into the path planning to assist in solving the 3-D motion planning problem of steering an AUV between two selected locations. We present simulation results for tracking a fresh water plume by use of our algorithm. Additionally, we present experimental results from field trials that test the skill of the model used as well as the incorporation of the model predictions into an AUV trajectory planner. These results indicate a modest, but measurable, improvement in surfacing error when the model predictions are incorporated into the planner.

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Harmful Algal Blooms (HABs) have become an important environmental concern along the western coast of the United States. Toxic and noxious blooms adversely impact the economies of coastal communities in the region, pose risks to human health, and cause mortality events that have resulted in the deaths of thousands of fish, marine mammals and seabirds. One goal of field-based research efforts on this topic is the development of predictive models of HABs that would enable rapid response, mitigation and ultimately prevention of these events. In turn, these objectives are predicated on understanding the environmental conditions that stimulate these transient phenomena. An embedded sensor network (Fig. 1), under development in the San Pedro Shelf region off the Southern California coast, is providing tools for acquiring chemical, physical and biological data at high temporal and spatial resolution to help document the emergence and persistence of HAB events, supporting the design and testing of predictive models, and providing contextual information for experimental studies designed to reveal the environmental conditions promoting HABs. The sensor platforms contained within this network include pier-based sensor arrays, ocean moorings, HF radar stations, along with mobile sensor nodes in the form of surface and subsurface autonomous vehicles. FreewaveTM radio modems facilitate network communication and form a minimally-intrusive, wireless communication infrastructure throughout the Southern California coastal region, allowing rapid and cost-effective data transfer. An emerging focus of this project is the incorporation of a predictive ocean model that assimilates near-real time, in situ data from deployed Autonomous Underwater Vehicles (AUVs). The model then assimilates the data to increase the skill of both nowcasts and forecasts, thus providing insight into bloom initiation as well as the movement of blooms or other oceanic features of interest (e.g., thermoclines, fronts, river discharge, etc.). From these predictions, deployed mobile sensors can be tasked to track a designated feature. This focus has led to the creation of a technology chain in which algorithms are being implemented for the innovative trajectory design for AUVs. Such intelligent mission planning is required to maneuver a vehicle to precise depths and locations that are the sites of active blooms, or physical/chemical features that might be sources of bloom initiation or persistence. The embedded network yields high-resolution, temporal and spatial measurements of pertinent environmental parameters and resulting biology (see Fig. 1). Supplementing this with ocean current information and remotely sensed imagery and meteorological data, we obtain a comprehensive foundation for developing a fundamental understanding of HAB events. This then directs labor- intensive and costly sampling efforts and analyses. Additionally, we provide coastal municipalities, managers and state agencies with detailed information to aid their efforts in providing responsible environmental stewardship of their coastal waters.

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Autonomous Underwater Vehicles (AUVs) are revolutionizing oceanography through their versatility, autonomy and endurance. However, they are still an underutilized technology. For coastal operations, the ability to track a certain feature is of interest to ocean scientists. Adaptive and predictive path planning requires frequent communication with significant data transfer. Currently, most AUVs rely on satellite phones as their primary communication. This communication protocol is expensive and slow. To reduce communication costs and provide adequate data transfer rates, we present a hardware modification along with a software system that provides an alternative robust disruption- tolerant communications framework enabling cost-effective glider operation in coastal regions. The framework is specifically designed to address multi-sensor deployments. We provide a system overview and present testing and coverage data for the network. Additionally, we include an application of ocean-model driven trajectory design, which can benefit from the use of this network and communication system. Simulation and implementation results are presented for single and multiple vehicle deployments. The presented combination of infrastructure, software development and deployment experience brings us closer to the goal of providing a reliable and cost-effective data transfer framework to enable real-time, optimal trajectory design, based on ocean model predictions, to gather in situ measurements of interesting and evolving ocean features and phenomena.