O círculo de eranos: a experiência da educação do campo ou como os contextos podem gerar

RESUMO: Estamos a vivenciar dois fatos paradoxais: de um lado, uma organização da escola instituída que gera a autoconservação das práticas do professor e, do outro, tendências nos plano científico e do discurso político que apelam ao retorno ao ator - que reconhece o professor como sujeito de seu saber e fazer. Foi neste contexto que se realizou a pesquisa subjacente a esta tese sobre a formação docente num projeto de escolarização que se fundamenta numa perspetiva de educação popular contra-hegemónica, edificada, no Brasil, como ‗educação do campo‘. Buscou-se compreender a vivência docente, suas perceções e aprendizagens. Desenvolveu-se a investigação a partir das questões: é possível, no contexto atual de mudanças sociais direcionadas ao processo cada vez maior de individuação docente, a formação em democracia participativa numa experiência de educação popular? Como ela se estabelece? O que ela nos ensina? A metodologia assentou na observação participativa das reuniões de planeamento, avaliação e replaneamento dos(as) professores(as) e coordenadores, numa proposta local de educação do campo - do Programa Nacional de Educação na Reforma agrária. As reuniões e escolarização ocorreram em Ilhéus/Bahia/Brasil, durante os anos de 2005-2006. As referências teóricas para a análise empírica do material coletado foram: a perspetiva da reflexão-ação emancipatória de Carr e Kemmis (1998), que compreende as instituições educacionais criadas por pressões sociais e políticas; e a conceção de emancipação desenvolvida por Freire e por Habermas, assente na ação comunicativa/dialógica. Para a análise utilizou-se o método da Análise Crítica de Discurso (ACD), cuja principal referência foi Fairclough. Nas narrativas das reuniões percebeu-se o desenvolvimento de uma polidez positiva – atos de fala que demonstram o falante desejando estabelecer o consenso com ouvinte; assinalada por estruturas modais que direcionaram para a abertura de relacionamento e participação mútua entre professores(as) e coordenadores do projeto. O conteúdo manifesto das falas amparou-se numa perspetiva de educador que se constrói na prática, e, ao mesmo tempo, a constrói, mas que, entretanto, necessita de aportes teóricos críticos no processo de embate epistémico entre os saberes da vida quotidiana concreta e os saberes científicos. A função interpessoal foi expressa pela arquitetura dialógica, permitindo um processo de construção mútua de escola e professores(as). Pode-se afirmar que a prática analisada indica que nestes tempos, de controlo intenso das instituições escolares, de competição, de solidão, é obviamente necessária a organização coletiva de professores (as), de movimentos sociais e universidades, amparados e financiados por ordenamentos legais (conquistados pela população), para consolidar e ampliar projetos críticos de escolarização, mudando, reciprocamente, escolas e professores(as). ABSTRACT: We are experiencing two paradoxical facts: the organization of the established school which generates the self-preservation of teaching practices and, on the other hand, there is a political and scientific trend that claims the return of the ―actor‖ – the teacher being the subject of his knowledge and actions. It was therefore in this context, that the underlying research for this Thesis was conducted. It concerns to the teacher training in an educational project which is based on the perspective of a counter-hegemonic and popular education available to people at the Brazilian countryside – also called ―Field Education‖. We searched the understanding of the educational experience, its perceptions and learning. The investigation was developed from two fundamental questions: Is it possible to have the experience of a popular education system in a functioning democracy, at the light of the recent social changes that lead to a greater individuation? How is it established? What can we learn from it? The methodology was settled on the participant observation of the planning and evaluation meetings of teachers and coordinators of the National Education Program in the Land Reform in Brazil. These meetings occurred in Ilheús- Bahia- Brazil during the years of 2005-2006. The theoretical references to the empirical analyses of the material collected were: the perspective of the reflection – action emancipative of Carr & Kemmis (1998), which comprehends the educational institutions created by social and political pressures; and the conception of emancipation developed by Freire and Habermas, which is settled on the communicative-dialogical action. For the analysis it was elected the method of Critical Analysis of Discourse (CAD),which main reference was Fairclough. During the account of the meetings it was noticed the development of a positive politeness – which reveals the desire of the speaker to reach an agreement with the listener, signalized by modal structures that directed to an open and participative relationship between teachers and coordinators of the project. The manifest content of the speeches was sustained by the educator perspective, which is built on the daily practice. However, it needs some basic theoretical contributions to the epistemic struggle between concrete ordinary life and the scientific knowledge. The interpersonal function was expressed by dialogical architecture, allowing a mutual process of construction that involves the school and the teachers. The practice analyzed indicates that, more than ever, due to the massive control of the institutions, the extreme competition and solitude, the collective organization of the teachers, the social movements and the universities is necessary. They should be supported and financed by legal systems to consolidated and amplify important education projects, bringing necessary changes for schools and teachers reciprocally.

Mallard Use of Hen HousesTM in Eastern Ontario

Nesting structures for ground-nesting waterfowl may be an effective technique for increasing nesting success in regions in which nest success is below the 15% threshold needed to maintain a stable population. We studied the occupancy rate of artificial nesting structures called hen housesTM by Mallards (Anas platyrhynchos) nesting in two different wetland habitats, beaver ponds and sewage lagoons, in eastern Ontario during 1999–2001. We hypothesized that, because natural cover was sparse on sewage lagoons, Mallards would occupy hen houses at a higher rate on sewage lagoons than on beaver ponds. However, of the 248 hen houses distributed between beaver ponds and sewage lagoons, none was occupied by waterfowl. Common Grackles (Quiscalus quiscula) were the only avian species that nested in hen houses. However, Mallards successfully nested directly under several structures (n = 6) when water levels were low enough to expose the ground beneath them. Mayfield daily nest survival estimates for Mallards nesting in natural cover were similar on sewage lagoons and beaver ponds for all years (mean = 0.99) and were higher than most published estimates. Factors such as nesting cover, predation pressures, and structure design and material may influence the use of artificial hen houses and should be considered when planning a hen house program outside of the Prairie Pothole Region.

An economic decision support tool for simulating paratuberculosis control strategies in a UK suckler beef herd

A dynamic, deterministic, economic simulation model was developed to estimate the costs and benefits of controlling Mycobacterium avium subsp. paratuberculosis (Johne's disease) in a suckler beef herd. The model is intended as a demonstration tool for veterinarians to use with farmers. The model design process involved user consultation and participation and the model is freely accessible on a dedicated website. The 'user-friendly' model interface allows the input of key assumptions and farm specific parameters enabling model simulations to be tailored to individual farm circumstances. The model simulates the effect of Johne's disease and various measures for its control in terms of herd prevalence and the shedding states of animals within the herd, the financial costs of the disease and of any control measures and the likely benefits of control of Johne's disease for the beef suckler herd over a 10-year period. The model thus helps to make more transparent the 'hidden costs' of Johne's in a herd and the likely benefits to be gained from controlling the disease. The control strategies considered within the model are 'no control', 'testing and culling of diagnosed animals', 'improving management measures' or a dual strategy of 'testing and culling in association with improving management measures'. An example 'run' of the model shows that the strategy 'improving management measures', which reduces infection routes during the early stages, results in a marked fall in herd prevalence and total costs. Testing and culling does little to reduce prevalence and does not reduce total costs over the 10-year period.

ENABLE: a wrist worn device with integrated accessible services to support old people living independently and safely at home

This RTD project, 2007-2009, is partly funded by the European Commission, in Framework Programme 6. It aims to assist elderly people for living well, independently and at case. ENABLE will provide a number of services for elderly people based on the new technology provided by mobile phones. The project is developing a Wrist unit with both integrated and external sensors, and with a radio frequency link to a mobile phone. Dedicated ENABLE software running on the wrist unit and mobile phone makes these services fully accessible for the elderly users. This paper outlines the fundamental motivation and the approach which currently is undertaken in order to collect the more detailed user needs and requirements. The general architecture and the design of the ENABLE system are outlined.

Decision making for HVAC&R system selection for a typical office building in the UK

Demands for thermal comfort, better indoor air quality together with lower environmental impacts have had ascending trends in the last decade. In many circumstances, these demands could not be fully covered through the soft approach of bioclimatic design like optimisation of the building orientation and internal layout. This is mostly because of the dense urban environment and building internal energy loads. In such cases, heating, ventilation, air-conditioning and refrigeration (HVAC&R) systems make a key role to fulfill the requirements of indoor environment. Therefore, it is required to select the most proper HVAC&R system. In this study, a robust decision making approach for HVAC&R system selection is proposed. Technical performance, economic aspect and environmental impacts of 36 permutations of primary and secondary systems are taken into account to choose the most proper HVAC&R system for a case study office building. The building is a representative for the dominant form of office buildings in the UK. Dynamic performance evaluation of HVAC&R alternatives using TRNSYS package together with life cycle energy cost analysis provides a reliable basis for decision making. Six scenarios broadly cover the decision makers' attitudes on HVAC&R system selection which are analysed through Analytical Hierarchy Process (AHP). One of the significant outcomes reveals that, despite both the higher energy demand and more investment requirements associated with compound heating, cooling and power system (CCHP); this system is one of the top ranked alternatives due to the lower energy cost and C02 emissions. The sensitivity analysis reveals that in all six scenarios, the first five top ranked alternatives are not changed. Finally, the proposed approach and the results could be used by researchers and designers especially in the early stages of a design process in which all involved bodies face the lack of time, information and tools for evaluation of a variety of systems.

Building energy efficiency for sustainable development in China: challenges and opportunities

Rapid urbanisation in China has resulted in great demands for energy, resources and pressure on the environment. The progress in China's development is considered in the context of energy efficiency in the built environment, including policy, technology and implementation. The key research challenges and opportunities are identified for delivering a low carbon built environment. The barriers include the existing traditional sequential design process, the lack of integrated approaches, and insufficient socio-technical knowledge. A proposed conceptual systemic model of an integrated approach identifies research opportunities. The organisation of research activities should be initiated, operated, and managed in a collaborative way among policy makers, professionals, researchers and stakeholders. More emphasis is needed on integrating social, economic and environmental impacts in the short, medium and long terms. An ideal opportunity exists for China to develop its own expertise, not merely in a technical sense but in terms of vision and intellectual leadership in order to flourish in global collaborations.

Elastic net orthogonal forward regression

An efficient two-level model identification method aiming at maximising a model׳s generalisation capability is proposed for a large class of linear-in-the-parameters models from the observational data. A new elastic net orthogonal forward regression (ENOFR) algorithm is employed at the lower level to carry out simultaneous model selection and elastic net parameter estimation. The two regularisation parameters in the elastic net are optimised using a particle swarm optimisation (PSO) algorithm at the upper level by minimising the leave one out (LOO) mean square error (LOOMSE). There are two elements of original contributions. Firstly an elastic net cost function is defined and applied based on orthogonal decomposition, which facilitates the automatic model structure selection process with no need of using a predetermined error tolerance to terminate the forward selection process. Secondly it is shown that the LOOMSE based on the resultant ENOFR models can be analytically computed without actually splitting the data set, and the associate computation cost is small due to the ENOFR procedure. Consequently a fully automated procedure is achieved without resort to any other validation data set for iterative model evaluation. Illustrative examples are included to demonstrate the effectiveness of the new approaches.

An introduction to the Chinese Evaluation Standard for the indoor thermal environment

Designing for indoor thermal environmental conditions is one of the key elements in the energy efficient building design process. This paper introduces a development of the Chinese national Evaluation Standard for indoor thermal environments (Evaluation Standard). International standards including the ASHRAE55, ISO7730, DIN EN, and CIBSE Guide-A have been reviewed and referenced for the development of the Evaluation Standard. In addition, over 28,000 subjects participated in the field study from different climate zones in China and over 500 subjects have been involved in laboratory studies. The research findings reveal that there is a need to update the Chinese thermal comfort standard based on local climates and people's habitats. This paper introduces in detail the requirements for the thermal environment for heated and cooled buildings and free-running buildings in China.

Identifying behavioural predictors of small power electricity consumption in office buildings

It is widely accepted that there is a gap between design energy and real world operational energy consumption. The behaviour of occupants is often cited as an important factor influencing building energy performance. However, its consideration, both during design and operation, is overly simplistic, often assuming a direct link between attitudes and behaviour. Alternative models of decision making from psychology highlight a range of additional influential factors and emphasise that occupants do not always act in a rational manner. Developing a better understanding of occupant decision making could help inform office energy conservation campaigns as well as models of behaviour employed during the design process. This paper assesses the contribution of various behavioural constructs on small power consumption in offices. The method is based upon the Theory of Planned Behaviour (TPB) which assumes that intention is driven by three factors: attitude, subjective norms, and perceived behavioural control, but we also consider a fourth construct: habit measured through the Self- Report Habit Index (SRHI). A questionnaire was issued to 81 participants in two UK offices. Questionnaire results for each behavioural construct were correlated against each participant’s individual workstation electricity consumption. The intentional processes proposed by TPB could not account for the observed differences in occupants’ interactions with small power appliances. Instead, occupants were interacting with small power “automatically”, with habit accounting for 11% of the variation in workstation energy consumption. The implications for occupant behaviour models and employee engagement campaigns are discussed.

Designing care bundle documentation to support the recognition and treatment of acute kidney injury: a route to quality improvement

The chapter describes development of care bundle documentation, through an iterative, user-centred design process, to support the recognition and treatment of acute kidney injury (AKI). The chapter details stages of user and stakeholder consultation, employed to develop a design response that was sensitive to user experience and need, culminating in simulation testing of a near final prototype. The development of supplementary awareness-raising materials, relating to the main care bundle tool is also discussed. This information design response to a complex clinical decision-making process is contrasted to other approaches to promoting AKI care. The need for different but related approaches to the working tool itself and the tool’s communication are discussed. More general recommendations are made for the development of communication tools to support complex clinical processes.

Energy savings in buildings or UHI mitigation? Comparison between green roofs and cool roofs

The intensification of the Urban Heat Island effect (UHI) is a problem that involves several fields, and new adequate solutions are required to mitigate its amplitude. The construction sector is strictly related with this phenomenon; in particular, roofs are the envelope components subject to the highest solar irradiance, hence any mitigation strategy should start from them and involve their appropriate design process. For this purpose, cool materials, i.e. materials which are able to reflect a large amount of solar radiation and avoid overheating of building surfaces have been deeply analyzed in the last years both at building and urban scales, showing their benefits especially in hot climates. However, green roofs also represent a possible way to cope with UHI, even if their design is not straightforward and requires taking into account many variables, strictly related with the local climatic conditions. In this context, the present paper proposes a comparison between cool roofs and green roofs for several Italian cities that are representative of different climatic conditions. In search of the most effective solution, the answers may be different depending on the perspective that leads the comparison, i.e. the need to reduce the energy consumption in buildings or the desire to minimize the contribution of the UHI effect.

Kinetic and Crystallographic Studies on Glyceraldehyde-3-Phosphate Dehydrogenase from Trypanosoma cruzi in Complex with Iodoacetate

Kinetic and crystallographic studies on the formation of the complex between iodoacetate and the enzyme glyceraldehyde-3-phosphate dehydrogenase from Trypanosoma cruzi were conducted in order to investigate the mechanistic and structural basis underlying enzyme inactivation. The crystallographic complex reveal important structural features useful for the design of novel inhibitors.

Characterization by Fluorescence of Organic Matter from Oxisols under Sewage Sludge Applications

Sewage sludge from wastewater treatment contains organic matter and plant nutrients that can play an important role in agricultural production and the maintenance of soil fertility, The present study has aimed to evaluate the degree of humification following sewage sludge application of soil organic matter by laser-induced fluorescence and humic acids using ultraviolet-visible fluorescence, and including comparison with Fourier-transform infrared spectroscopy and elemental analysis. Sewage sludge applications to the soil caused a decrease in the degree of humification of the soil organic matter and humic acids for both a Typic Eutrorthox (clayey) soil and a Typic Haplorthox (sandy) soil of around 14 and 27%, respectively. This effect is probably clue to incorporation of newly formed humic substances from the sewage sludge into the characteristics of less humified material, and to the indigenous soil humic substances. The minor alterations observed in the clay soil probably occurred due to both the greater mineral association, which better stabilized the indigenous soil organic matter, and the higher microbial activity in this soil, which accelerated sewage sludge mineralization. Sewage sludge applications increased the C content for the clay and sandy soils by 7.4 and 15.4 g kg(-1), respectively, suggesting a positive effect on these two soils.

Grafisk profil till ett företag som tillverkar handgjorda textilprodukter av naturmaterial : Hur kan en hemsida kommunicera ett varumärke?

Målet med detta examensarbete var att skapa en grafisk profil till företaget Lyst Form AB som bedriver större delen av sin affärsverksamhet via en hemsida. Företaget säljer handgjorda kläder och accessoarer i lintyg. En teoretisk del i arbetet tar upp hur varumärket kan kommuniceras genom hemsidan. Den grafiska profilen utformades utifrån företagets identitet. Det är viktigt att företaget speglas på ett korrekt sätt. Ett företags identitet kan beskrivas som organisationens själ och den visas utåt i form av bland annat den grafiska profilen. Denna ses därför som en viktig identitetsbärare och den kan kallas för den visuella identiteten. En grafisk profil innehåller bland annat logotyp, profilfärger samt typografi. Företagets målgrupp ansågs vara en viktig del i hela processen eftersom de i slutändan ska tilltalas av den grafiska profilen. Först gjordes en grundlig undersökning och research av företaget för att få en god uppfattning av dess identitet. Även konkurrenterna granskades. En enkätundersökning gjordes för att kunna samla information utifrån målgruppens perspektiv. Denna informationsinsamling gav ett bra underlag och en riktlinje i framtagningen av den grafiska profilen.   Under designprocessens gång diskuterades de logotypförslag som togs fram med hjälp av en sammansatt fokusgrupp. Diskussionen var givande och var till stor nytta i designprocessen. Baserat på den grafiska profilen skapades en layout för hemsidan samt exempel på trycksaker för att visa hur den kan användas. En enklare grafisk manual skapades för att företaget ska kunna synas utåt på ett enhetligt sätt. En sista enkätundersökning gjordes för att se om målet uppnåtts. Resultatet visade att den nya framtagna grafiska profilen var en klar förbättring jämfört mot den nuvarande sett utifrån företagets identitet. I slutändan valde dock företaget en annan logotyp. Detta påvisar svårigheterna i processen att ta fram en grafisk profil. Alla delar i processen är viktiga och undersökningarna är bland annat en av de väsentliga delarna vilka bidrar med en större chans till ett bra slutresultat som tar hänsyn till både företagets och målgruppens åsikter.