33 research outputs found

    Contribuições da residência pedagógica e da escrita autobiográfica na formação de uma professora de física

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    Elaborar compreensões, a partir da escrita narrativa de uma professora-preceptora, para os modos pelos quais a prática pôde contribuir para seu processo formativo é o objetivo geral deste artigo, cuja questão norteadora foi: de que modo o envolvimento de uma professora-preceptora com o programa de residência pedagógica e seu exercício de escrita autobiográfica podem contribuir para sua formação continuada? Respaldados teórico-metodologicamente na pesquisa narrativa, analisamos fragmentos narrativos de uma professora-preceptora, que tratam de suas vivências e experiências junto ao Programa Residência Pedagógica da Universidade Federal de Uberlândia. A partir da análise narrativa, foi possível compreender que o exercício da escrita era uma dificuldade que, aos poucos, foi sendo superada. Além disso, alguns dos enfrentamentos provocados pela experiência no programa, juntamente com estudos teóricos, escrita e reflexão, contribuíram para que a professora pudesse (re)visitar sua prática docente e promover um processo de transformação (pessoal e profissional

    Il nuovo portale web dell'Istituto Nazionale di Geofisica e Vulcanologia

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    The web portal of Istituto Nazionale di Geofisica e Vulcanologia represents a point of access to studies and data which are available on line and, among others, contribute to the seismicity of the territory. Main features of the portal are presented

    Evasão e retenção no ensino superior: abordagem baseada em taxas quantitativas

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    O presente artigo apresenta uma proposta metodológica para a análise da trajetória acadêmica dos estudantes no Ensino Superior, observando o processo de evasão e retenção. Esta metodologia propõe certas categorias de situação acadêmica: Ingressantes; Matriculados (Síncronos, Assíncronos e Retidos); Formados (Síncronos e Retidos); e Evadidos (Retidos e Não Retidos). São propostas taxas de verificação e acompanhamento, obtidas a partir de dados institucionais tradicionalmente disponíveis nas instituições. O estudo empírico utilizou dados da Universidade Federal de Uberlândia, entre 2012 e 2018. Os resultados indicam que parcela significativa dos estudantes evadidos o fazem dentro do tempo ideal e sugerem que os Matriculados Síncronos se formam, enquanto os Matriculados Assíncronos tendem à evasão. Tais resultados podem nortear as políticas universitárias voltadas para permanência e formação

    “I luoghi di Mercalli”: a travelling exhibition as a tool for scientists to dialogue with the public on volcanoes and earthquakes

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    On March 19, 1914 Giuseppe Mercalli, a seismologist and volcanologist, well-known around the world for the Intensity scale of earthquakes bearing his name, died tragically. A hundred years after, the Istituto Nazionale di Geofisica e Vulcanologia (INGV) has promoted a variety of activities and cultural events that will take place under the Patronage of the President of the Italian Republic within a year, the so called “Anno Mercalliano” (the Year of Mercalli). The opening ceremony took place in Naples, Italy, on March 19, 2014, in the Convitto Nazionale Vittorio Emanuele II. A scientific conference was held with the participation of experts from INGV and the university of Milano – Bicocca, and presentations of students. On that day the exhibition entitled “I luoghi di Mercalli” (Mercalli's places) was also inaugurated, at the presence of local authorities. The exhibition, organized by INGV, was realized in collaboration with the high school Vittorio Emanuele II, where Mercalli has been teaching for 19 years, and the Università degli Studi Suor Orsola Benincasa, where he was professor of natural sciences. A biographical and geographical description of the places where Mercalli operated introduces the exhibition, which is organized in sections: - Mercalli educator (he taught at high schools in Reggio Calabria and Naples); - Mercalli volcanologist (Mercalli studied Vesuvius volcanic activity for more than twenty years, he was a scientific witness of the Vesuvius 1906 eruption, and of the eruptions occurred at Vulcano (1888-90) and Stromboli (1891) islands. - Mercalli seismologist (Mercalli Intensity scale definition, based on his experience as witness of catastrophic earthquakes, such as Casamicciola in 1883 and Messina in 1908). Another section deals with the Vesuvius Observatory, directed by Mercalli between 1911 and 1914, and the description of the three active volcanoes of the Campania region (Vesuvius, Campi Flegrei and Ischia island), which have been the subject of studies by the well-known scientist. The exhibition is enriched by documents, manuscripts, photos and field notebooks of Mercalli. It is not intended to be only a celebratory exhibition; rather it is designed as a tool for dissemination of scientific culture and to raise awareness about seismic and volcanic hazards. In the exhibition path a continuous thread between the figure of Mercalli as a researcher and the role of an Earth Science researcher today is highlighted, pointing to the development of scientific knowledge in the past century. The goal is to improve the capability of learning from the disasters occurred in the past to implement preventive actions to safely deal with future events. The exhibition is travelling and will be provided on request to institutions and schools.PublishedMilano, Italia1V. Storia e struttura dei sistemi vulcaniciope

    Interactive Exhibits for Geophysical Education: Uncovering the Secrets of the Earth

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    The Educational & Outreach Group of the Istituto Nazionale di Geofisica e Vulcanologia (INGV, Rome, Italy) designed a portable museum to bring on the road educational activities focused on the understanding of geomagnetism, plate tectonics, seismology and seismic hazard. Here the main experiments, models and exhibits which have been successfully installed in Genoa for the Science Festival (2003, 2004) and in Rome (2005) with enthusiastic audience participation are shown.Published375-3815.8. TTC - Formazione e informazioneN/A or not JCRope

    Volcanoes: effusions and explosions. Interactive exhibits to understand how volcanoes work

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    The Educational & Outreach Group (EOG) of the Istituto Nazionale di Geofisica & Vulcanologia created a portable museum to provide educational opportunities in volcanology, volcanic risk and Earth science for students and visitors. The EOG developed this project for the "Festival della Scienza", organized in Genoa, Italy, in October - November, 2007, which was a parade of over 200 events, including scientific and technological exhibitions, workshops, meetings, lectures, books and video presentations. In this museum visitors can successively see many posters and movies and play with interactive exhibits. A little 3D-movie shows the Big Bang, the formation of Solar System and, in particular the formation of the Earth. Many interactive exhibits illustrate why, where and when earthquakes and volcanic eruptions occur around the world and allow to introduce the visitor to the plate tectonics theory. A 3D magnetic plate tectonic puzzle can be put down and reconstructed by visitors to understand the Earth’s surface configuration. Then two other 3D Earth models show what drives the plates and the inner Earth structure. An interactive program illustrates where and when earthquakes and volcanic eruptions occur in accelerated time on maps of various areas around the world. Playing with a block diagram it is possible to produce an earthquake along a 1 meter long strike slip fault in a destroying all the man-made constructions close to it. A little movie introduces to volcanoes’ world. Two small interactive exhibits allow visitors to understand the mechanism for the explosive and the effusive eruptions. Two other exciting interactive exhibits allow visitors to “create” two different eruptions: the explosive and the effusive ones. It is possible to get inside a volcano (a 2 meter high interactive exhibit) to attend an eruption from the magmatic chamber to the Earth surface. A big hall is completed dedicated to Italian volcanoes (Vesuvio, Campi Flegrei, Etna, Stromboli, Vulcano, Colli Albani); some of them are reproduced with 3D models or described by short movies. The museum finishes with the visit of the volcanic survey hall of Stromboli, seeing - in real time - seismic data, three different webcams, geochemical and strain data. The INGV Museum had remarkably successful, reaching more than 7,500 children and adults yet in 13 days, also thanks to 30 volcanologists as very special guides. The Educational & Outreach Group: M. Pignone, A. Tertulliani, M. De Lucia, M. Di Vito, P. Landi, P. Madonia, M. Martini, R. Nave, M. Neri, P. Scarlato, J. Taddeucci, R. Moschillo, S. Tarquini, G. Vilardo, A. Bonforte, L. Calderone, F. Cannavò, W. De Cesare, P. Ficeli, S. Inguaggiato, M. Mattia, G. Puglisi, S. Morici, D. Reitano, D. Richichi, G. Scarpato, B. Angioni, F. Di Laura, S. Palone, D. Riposat

    Interactive Exhibits for Geophysical Education: Uncovering the Secrets of the Earth

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    The Educational & Outreach Group of the Istituto Nazionale di Geofisica e Vulcanologia (INGV, Rome, Italy) designed a portable museum to bring on the road educational activities focused on the understanding of geomagnetism, plate tectonics, seismology and seismic hazard. Here the main experiments, models and exhibits which have been successfully installed in Genoa for the Science Festival (2003, 2004) and in Rome (2005) with enthusiastic audience participation are shown

    Quomodo Topicorum Ciceronis textus intellegendus sit

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    Spin state characterization and aggregation of microperoxidase-8, -9 as a function of pH and pulsed EPR of cytocrome c (S=½)

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    Neste trabalho, usamos as técnicas espectroscópicas de UV-vis, dicroísmo circular (CD) e ressonância paramagnética eletrônica (RPE) para caracterizar as microperoxidases-8 e 9 e N-AcMP-9. As microperoxidases são produtos da digestão proteolítica de citocromo c, contendo em média dez resíduos de aminoácidos. Não possuindo o sexto ligante, o ferro hemínico neste caso apresenta-se no estado de alto spin. Nossos resultados mostram que a transição alcalina (pKa = 8,53) produz agregados de hemepeptídeos no estado de baixo spin, nos quais a molécula de água é deslocada pelo grupo N-terminal da cisteína de uma MP-8 vizinha. Para valores altos de pH ocorre uma desprotonação do anel imidazol da histidina que ocupa a quinta coordenação do ferro hemínico. Nessa condição de pH a MP-8 encontra-se em um equilíbrio de espécies agregadas no estado de alto e baixo spin. Uma espécie agregada é formada pela MP-8 pentacoordenada com o hitidinato ocupando a sexta coordenação. Já a outra espécie agregada é composta pela coordenação do grupo a-amino da cisteína e do íon hidróxido, ocupando a sexta e quinta coordenação do ferro hemínico, respectivamente. Quanto a N-AcMp-9, o estado de baixo spin é produzido pela desprotonação da água (pKa = 9,6) situada na sexta coordenação do ferro. Esses resultados estão de acordo com os encontrados para N-AcMP-8. Sobre a MP-9, o estado de baixo spin é obtido com o deslocamento da água pelo grupo a-amino terminal da lisina 13 de uma molécula vizinha. Acima do pH 85, o grupo c-amino da lisina 13 estabelece uma coordenação intra-cadeia. Os monômeros exibem OH- ou histidinato na quinta posição de coordenação. A coordenação intra-cadeia na MP-9 foi corroborada pela simulação de dinâmica molecular (MD). Vale mencionar que todos os resultados de CD e RPE foram simulados utilizando-se os programas CCA e QPOW, respectivamente. Realizamos também medidas de RPE pulsado do citocromo c em tampão fosfato pH 7,4 em SDS e em Cardiolipina com o objetivo de investigar o estado de baixo spin alternativo. Realizamos experimentos de eco com varredura de campo (Echo field sweep), ESEEM (Electron spin echo envelope modulation), e tempo de relaxação spin-rede T, para uma completa caracterização dos compostos acima citadosIn this work we have used spectroscopic techniques such as UV-vis, circular dichroism, and electronic paramagnetic resonance to characterize the microperoxidases-8 and -9 and also N-AcMP-9. Microperoxidases are products of the proteolytic digestion of cytochrome c, containing an average of ten residues of aminoacids. Lacking the sixth ligand, the heminic iron is ín the high spin state. Our results show that the alkaline transition (pKa = 8,53) produces hemepeptideos aggregates in the low spin state, in which the water molecule is displaced by the Nterminal group of a nearby MP-8 cysteine. For high values of pH there is a deprotonation of the imidazole ring of the histidine that occupies the heminic iron\'s fifth coordination. In that pH MP-8 is found in equilibrium of aggregated species of high and low spin. An aggregated species if formed by the pentacoordinated MP-8 with the histidinate in the sixth coordination. The other aggregated species is composed by the coordination of the alpha-amino groups of cysteine and hydroxide ion, occupying the sixth and fifth coordination of heminic iron, respectively. As for NAcMp-9, the low spin state is produced by deprotonation (pKa=9.6) of the water located at the iron\'s sixth coordination. These results agree with others found for NAcMp-8. In MP-9 the low spin state is obtained displacing the water by the terminal alpha-amino group of Lysl3 in a nearby molecule. Above pH 8.5 the epsilon-amino group of Lysl3 coordinates intra-chain. The monomers exhibit OH- or histidinate in the fifth coordination. The intra-chain coordination of MP-9 was confirmed by molecular dynamics simulation. It is important to notice that all results from CD and EPR were simulated using the programs CCA and QPOW, respectively. We also made pulsed EPR measures of cytochrome c in fosfato buffer pH 7.4 in SDS and in cardiolipin, in order to investigate the alternative low spin state. We made experiments with echo field sweep, ESEEM and spin-lattice relaxation time TI for a complete characterization of the above mentioned mixtur

    Development of didactic material - eletricity

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    Este trabalho consiste na elaboração de três livros paradidáticos e, tem como público alvo pessoas interessadas em conhecer um pouco de ciência. Vale mencionar que os livros em questão servem como suporte aos livros didáticos. O conteúdo da obra é apresentado por meios de questionamentos acerca de fenômenos físicos que quatro adolescentes fazem entre si. Quando não conseguem esclarecer esses fenômenos por si só, as personagens procuram um site, o qual conduzirá toda a trama, sempre respondendo o necessário e propondo atividades com as quais serão esclarecidas todas as dúvidas. No decorrer da narrativa são inseridos dados históricos pelas próprias personagens. Uma outra preocupação foi a de apresentar atividades que foram rigorosamente testadas, de forma que qualquer pessoa que se disponha a realizar algum experimento não se frustre com resultados absurdos. Todas as atividades são propostas com materiais simples e de baixo custo, tomando-se mais acessíveis. Nessa dissertação serão apresentados livros cujos temas são: eletrostática; eletricidade dinâmica e eletromagnetismo. Para comprovar a viabilidade desses materiais, os livros foram apresentados a adolescentes e adultos com o intuito de reproduzirem sozinhos as experiências, atividade que nos proporcionou a reformulação de alguns dados e, assim, a obtenção de resultados positivosThis work is based on the confection of three paradidactic books dedicated to people interested in learning a little more about science. In this sense, it is worth noting that such books give support to didactic ones. The books\' contents are presented by the questioning of physical phenomena by four adolescents. The idea is that whenever the adolescents are not able to clarify the concepts by themselves, they consult an Internet site, which leads them to the right ideas and concepts by proposing activities or directly answering questions. As the narrative is done, characters present historical data pertinent to the topics. During the development of the work, a major concern of the authors was to present rigorously tested activities so that any person willing to realize the experiments doesn\'t get frustrated by absurd results. The activities are proposed with simple and inexpensive materials, which are easily accessible. The themes of the books are: electrostatic, dynamic electricity and electromagnetism and to prove the effectiveness of the collection, the books were presented to adolescents and adults which were encouraged to reproduce the experiments. By analyzing the results of such contact to the public, the quality of the work was enhance
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