19 research outputs found

    Romeu Beltrão e o Boletim do Instituto de Ciências Naturais

    Get PDF
    The Bulletin of the Institute of Natural Sciences of the Federal University of Santa Maria was a scientific journal, pub lished between 1962 and 1968. It represented a vehicle for research carried out at the Institute of Natural Sciences of the newly created Federal University of Santa Maria. The articles published addressed mainly the phytogeography and paleontology of the region. The main contributor and mentor of the journal was Prof. Romeu Beltrão, man of multiple interests. He was a doctor, historian, high school teacher, professor, writer, botanist, paleontologist. The pioneering "Bulletin" is discussed within the evolution of research and pos-graduate studies at the university in which it arises. We also discussed the potential of this material to address the Nature of Science, and how scientific development is tied to the social and historical conditions in which it is embedded.O Boletim do Instituto de Ciências Naturais da Universidade Federal de Santa Maria foi um periódico científico, publicado entre os anos 1962 e 1968. Representou um veículo para as pesquisas realizadas no Instituto de Ciências Naturais da então recém-criada Universidade Federal de Santa Maria. Os artigos publicados tratavam principalmente de fitogeografia e paleontologia da região. O mentor e principal contribuídor do periódico foi o prof. Romeu Beltrão, homem de múltiplos interesses. Foi médico, historiador, professor do ensino médio e superior, escritor, cronista, botânico, paleontólogo. O pioneirismo do “Boletim” é discutido dentro da evolução da pesquisa e pós-graduação na universidade em que ele surge. Também discutimos o potencial deste material para a abordar a Natureza da Ciência, e como o desenvolvimento científico está atrelado as condições sociais e históricas em que está inserido

    Metodologias Ativas de Aprendizagem: Uma Breve Revisão

    Get PDF
    Historicamente, os métodos tradicionais de ensino visualizaram o professor como uma figura de poder sobre o aluno. Mas mudanças de percepção no processo de ensino-aprendizagem têm ocorrido com a introdução das chamadas 'metodologias ativas de aprendizagem'. Essas são metodologias em que o aluno se torna o protagonista central. Suas aplicações permitem o desenvolvimento de novas competências, como a iniciativa, a criatividade, a criticidade reflexiva, a capacidade de autoavaliação e a cooperação para se trabalhar em equipe. O professor atua como orientador, supervisor e facilitador do processo. O presente artigo objetiva ser uma breve introdução ao histórico, fundamentos e classificações das metodologias ativas de aprendizagem

    Plumage variation in the Planalto Woodcreeper (Dendrocolaptes platyrostris) and the melanocortin-1 receptor gene (MC1R)

    Get PDF
    The Planalto Woodcreeper (Dendrocolaptes platyrostris) presents “pale” and “dark” plumage variants, which are distributed throughout the Cerrado and Caatinga, and throughout the Atlantic Forest, respectively. To understand the genetic nature of the plumage variation in the species, we partially sequenced the melanocortin-1 receptor (MC1R) gene, which is associated with melanic phenotypes in vertebrates. We found no correlation between variation at MC1R sequences and plumage color in D. platyrostris. Aminoacid sites that were correlated with variation in melanic plumage in other bird species were monomorphic in D. platyrostris. Our results suggested that MC1R seems not to be involved in controlling plumage variation in D. platyrostris.Fil: Corso, Josmael. Universidade Federal do Rio Grande do Sul. Departamento de Genética; BrasilFil: Cabanne, Gustavo Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales; ArgentinaFil: Mendonça d'Horta, Fernando. Universidade de Sao Paulo. Instituto de Biociências; BrasilFil: da Silva Loreto, Elgion Lucio. Universidade Federal de Santa Maria. Departamento de Biologia; BrasilFil: Miyaki, Cristina Yumi. Universidade de Sao Paulo. Instituto de Biocièncias; Brasi

    Imagine study on Microorganisms on the web

    Get PDF
    O objetivo desta pesquisa foi identificar concepções que perpassam as imagens de microrganismos, disponibilizadas on-line, avaliando se estas contribuem para a construção adequada, reducionista ou equivocada do ensino em microbiologia. O estudo, de caráter qualitativo, orientou-se pelo enfoque exploratório, utilizando como metodologia a construção de um banco de imagens selecionadas por meio da ferramenta Google Imagens de pesquisa na web. Foram analisadas 1421 imagens agrupadas pelas palavras-chave: “microrganismos” e “micro-organismos”, originando onze categorias de análise. Os resultados indicam que nas imagens on-line os microrganismos são lembrados por sua nocividade para a saúde humana. Em contrapartida, revelam uma escassez de recursos imagéticos no que tange aos benefícios proporcionados pelos microrganismos. Tal resultado contribui para uma concepção equivocada, cabendo ao professor utilizar as imagens de forma crítica e responsável.This study aimed to identify conceptions that permeate the microorganism’s images, that are available online, evaluating whether they contribute to the adequate, reductionist or mistaken construction of microbiology teaching. The study, with a qualitative character, was guided by the exploratory approach, using as methodology the construction of a bank of images, which were selected through Google Images, a tool of research on the web. 1421 images were analyzed, which was grouped by the keywords: “microrganismos” and “micro-organismos”, in Portuguese, leading to eleven categories of analysis. The results indicate that in the online images the microorganisms are remembered for their harmfulness to human health. On the other hand, they revealed a scarcity of imagery resources concerning the benefits provided by microorganisms. This result contributes to a mistaken conception, giving the task to the teachers to use the images with critically and responsibly

    Investigação das concepções sobre higiene e uso de metodologias alternativas

    Get PDF
    This paper shows the results of research about hygiene. The sample group was from a school in the municipality Cachoeira do Sul, Rio Grande do Sul, Brasil. The group studied was composed of 19 pupils from both the nursery and basic education phases of the school. This study aims to research of spontaneous conceptions and propose a roadmap of activities on identify the contributions of a teaching method, centered in a ludic education approach, for the teaching and learning of students in the health area. To assess the responses from the children, an interview was made using an experimental methodology was applied with one of the groups surveyed. Students who participated in the methodological activity, were interviewed again. The main perceptions showed that  the developed game made the learning process easier and allowed a stronger involvement, moments of  distraction and enabled subjects review and it showed that previous knowledge was demanded. Based on these results some educational implications are presented for discussion in the early yearsEste artigo relata a investigação sobre higiene, com uma amostra de 19 alunos de anos iniciais em uma escola privada de Cachoeira do Sul, Rio Grande do Sul, Brasil. Tem por objetivo investigar as concepções espontâneas sobre a higiene e identificar as contribuições de um método de ensino, centrado numa abordagem lúdica de educação, para o ensino e a aprendizagem de crianças na área da saúde. Como método de estudo, foi aplicada uma atividade prática com a turma pesquisada. As principais percepções assinalam que atividades práticas desenvolvidas facilitam a aprendizagem, possibilitam maior envolvimento, permitem momentos de distração, possibilitam revisão de conteúdos e necessitam de conhecimentos prévios. Com base nestes resultados são apresentadas algumas implicações educativas para discussão nos anos iniciais

    The Genome of Anopheles darlingi, the main neotropical Malaria vector

    Get PDF
    Anopheles darlingi is the principal neotropical malaria vector, responsible for more than a million cases of malaria per year on the American continent. Anopheles darlingi diverged from the African and Asian malaria vectors ∼100 million years ago (mya) and successfully adapted to the New World environment. Here we present an annotated reference A. darlingi genome, sequenced from a wild population of males and females collected in the Brazilian Amazon. A total of 10 481 predicted protein-coding genes were annotated, 72% of which have their closest counterpart in Anopheles gambiae and 21% have highest similarity with other mosquito species. In spite of a long period of divergent evolution, conserved gene synteny was observed between A. darlingi and A. gambiae. More than 10 million single nucleotide polymorphisms and short indels with potential use as genetic markers were identified. Transposable elements correspond to 2.3% of the A. darlingi genome. Genes associated with hematophagy, immunity and insecticide resistance, directly involved in vector–human and vector–parasite interactions, were identified and discussed. This study represents the first effort to sequence the genome of a neotropical malaria vector, and opens a new window through which we can contemplate the evolutionary history of anopheline mosquitoes. It also provides valuable information that may lead to novel strategies to reduce malaria transmission on the South American continent. The A. darlingi genome is accessible a

    The Genome of Anopheles darlingi, the main neotropical malaria vector

    Get PDF
    Anopheles darlingi is the principal neotropical malaria vector, responsible for more than a million cases of malaria per year on the American continent. Anopheles darlingi diverged from the African and Asian malaria vectors ∼100 million years ago (mya) and successfully adapted to the New World environment. Here we present an annotated reference A. darlingi genome, sequenced from a wild population of males and females collected in the Brazilian Amazon. A total of 10 481 predicted protein-coding genes were annotated, 72% of which have their closest counterpart in Anopheles gambiae and 21% have highest similarity with other mosquito species. In spite of a long period of divergent evolution, conserved gene synteny was observed between A. darlingi and A. gambiae. More than 10 million single nucleotide polymorphisms and short indels with potential use as genetic markers were identified. Transposable elements correspond to 2.3% of the A. darlingi genome. Genes associated with hematophagy, immunity and insecticide resistance, directly involved in vectorhuman and vectorparasite interactions, were identified and discussed. This study represents the first effort to sequence the genome of a neotropical malaria vector, and opens a new window through which we can contemplate the evolutionary history of anopheline mosquitoes. It also provides valuable information that may lead to novel strategies to reduce malaria transmission on the South American continent. The A. darlingi genome is accessible at www.labinfo.lncc.br/index.php/anopheles- darlingi. © 2013 The Author(s)

    Chlorophyll fluorescence, Orbital and Photosynthesis: practical activities integrating concepts of Chemistry, Physics and Biology

    No full text
    As práticas descritas exploram a relação entre a reserva de energia realizada na fotossíntese e a emissão de fluorescência pela clorofila quando em solução em contraposição a ausência de fluorescência quando esta está presente nos cloroplastos. Poderá ser utilizada como atividade demonstrativa de curta duração ou com atividade de duração mais longa, permitindo a exploração de vários conceitos ligados à fotossíntese. Os materiais propostos para a execução das atividades são simples, o que torna possível a construção pelos alunos, possibilitando o desenvolvimento de várias habilidades e de propostas experimentais. Os protocolos são baseados em registro de observações e perguntas-chave para a continuidade da execução. As perguntas criam pausas para momentos de reflexão e revisão de conceitos durante a realização da prática. As atividades visam proporcionar elementos para o entendimento da fotossíntese como um fenômeno que necessita, para seu entendimento, aportes de diferentes disciplinas.These laboratory activities explore the relationship between the reserve of energy that occur during photosynthesis and the chlorophyll fluorescence emission when in solution as opposed to absence of fluorescence when the chlorophyll are in intact chloroplasts. This proposal can be used as short demo or as  activities with longer duration, to show chlorophyll's properties associated with the photosynthesis. The materials proposed for the implementation of the activities are simple, and possible to building it by the students, enabling the development of various skills and experimental proposals. The protocols are based on observations and record key questions to continue the execution. During the activities, questions promotes pauses for moments of reflection and review of concepts. At the end are presented and discussed proposals for development of interdisciplinary projects
    corecore