1,455 research outputs found

    "A gente tá fazendo algo para pessoas de verdade e, às vezes, me pergunto, o que fazer agora?": contos etnográficos acerca das práticas avaliativas no estágio supervisionado de língua inglesa

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    Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão, Programa de Pós-Graduação em Linguística, Florianópolis, 2015.Dentre outros aspectos pedagógicos, a formação acadêmica de um professor é composta por elementos curriculares necessários para o desenvolvimento da educação linguística no cenário escolar. Enquanto um desses elementos curriculares, a avaliação da aprendizagem pode fornecer ao professor que a utiliza inputs para obtenção de bons resultados e para orientação de suas práticas pedagógica futuras. No entanto, o desconhecimento do professor em relação ao propósito de uma avaliação pode favorecer a reprodução de práticas coercitivas em sala de aula e de uma educação linguística voltada para a manutenção de práticas monolíngues. Com base nesse pensamento, a presente pesquisa tem como objetivo principal investigar como três professoras-alunas de Língua Inglesa se constituem enquanto professoras avaliadoras em seu processo de formação inicial durante o período em que vivenciam o estágio supervisionado. Para tanto, adota-se como aporte metodológico uma perspectiva qualitativa-interpretativista de cunho etnográfico pelo viés da Linguística Aplicada (SPRADLEY, 1979; ERICKSON, 1990; ANDRÉ, 2012; FRITZEN e LUCENA, 2012). Além disso, utiliza-se a visão êmica, a observação participante, os documentos institucionais, as entrevistas/conversas e as notas de campo para a geração de dados. A fundamentação teórica deste trabalho está ancorada na visão de língua como prática social (PENNYCOOK, 2010) e adicional (SCHLATTER e GARCEZ, 2012), da avaliação da aprendizagem como meio de formação docente (SCARAMUCCI, 2006; LUCENA, 2014b) e do estágio supervisionado enquanto momento de reflexão e (re)significação das práticas docentes (GIMENEZ, 2004; WIELEWICKI, 2011). A partir das experiências de três professoras-alunas com a avaliação da aprendizagem vivenciadas na escola-campo durante o Estágio Supervisionado I e II no ano de 2014, os resultados deste estudo mostraram que aspectos de uma avaliação somativa foram utilizados pelas estagiárias em suas práticas avaliativas, mas que, no decorrer dos estágios, novas percepções condizentes com uma avaliação enquanto ato político passaram a fazer parte das práticas avaliativas das estagiárias.Abstract : Among other pedagogical features, teacher education consists of the necessary curriculum elements for the development of language education in school settings. As one of the curriculum elements, assessment can provide teachers inputs to obtain good educational results, as well as, conducting him/her in the educational practices. However, teacher's lack of purpose in assessing the knowledge of students the may favor the reproduction of oppressive pedagogical practices in classroom, at the same time, maintaining monolingual practices as a consequence of his/her lack of purpose. Based on that thought, this research aims to investigate how three English teacher-students constitute themselves as evaluators in their training process during the internship experience. Therefore, it was utilized a qualitative-interpretative perspective of ethnographic research in the field of Applied Linguistics as methodological support (SPRADLEY, 1979; ERICKSON, 1990; ANDRÉ, 2012; FRITZEN e LUCENA, 2012). In addition, the emic perspective it was used, participant observation, institutional documents, interviews/dialogues, and field notes for generating data. Some of the theoretical bases of this research are reflected on language as social practice (PENNYCOOK, 2010), on assessment as part of the teacher education (SCARAMUCCI, 2006; LUCENA, 2014b), as well as the internship as moment for reflecting and changing teaching practices (GIMENEZ, 2004; WIELEWICKI, 2011). Based on the internship assessment experiences of three teacher-students in 2014, the results showed that some aspects of a summative evaluation were firstly used by the teacher-students in their assessment practices. However, over the internships I and II, new insights related to assessment as a political act were utilized by the teacher-students

    Investigation of Galactic open cluster remnants: The case of NGC 7193

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    Galactic open clusters (OCs) that survive the early gas-expulsion phase are gradually destroyed over time by the action of disruptive dynamical processes. Their final evolutionary stages are characterized by a poorly populated concentration of stars called an open cluster remnant (OCR). This study is devoted to assessing the real physical nature of the OCR candidate NGC 7193. GMOS/Gemini spectroscopy of 53 stars in the inner target region were obtained to derive radial velocities and atmospheric parameters. We also employed photometric and proper motion data. The analysis method consists of the following steps: (i) analysis of the statistical resemblance between the cluster and a set of field samples with respect to the sequences defined in color-magnitude diagrams (CMDs); (ii) a 5-dimensional iterative exclusion routine was employed to identify outliers from kinematical and positional data; (iii) isochrone fitting to the Ks × (J-Ks) CMD of the remaining stars and the dispersion of spectral types along empirical sequences in the (J-H) × (H-Ks)diagram were checked. A group of stars was identified for which the mean heliocentric distance is compatible with that obtained via isochrone fitting and whose metallicities are compatible with each other. Fifteen of the member stars observed spectroscopically were identified together with another 19 probable members. Our results indicate that NGC 7193 is a genuine OCR, of a once very populous OC, for which the following parameters were derived: d = 501±46 pc, t = 2.5±1.2Gyr, 〈[Fe/H]〉 = -0.17±0.23 and E(B-V) = 0.05±0.05. Its luminosity and mass functions show depletion of low mass stars, confirming the OCR is in a dynamically evolved state.Fil: de Souza Angelo, Mateus. Universidade Federal de Minas Gerais; BrasilFil: Coelho Dos Santos, Joao Francisco. Universidade Federal de Minas Gerais; BrasilFil: Barbosa Corradi, Wagner José. Universidade Federal de Minas Gerais; BrasilFil: De Souza Maia, Francisco Ferreira. Universidade Federal de Minas Gerais; BrasilFil: Piatti, Andres Eduardo. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentin

    VIVÊNCIAS E POSSIBILIDADES DOCENTES NA RESIDÊNCIA PEDAGÓGICA: UMA APROXIMAÇÃO ENTRE UNIVERSIDADE, EDUCAÇÃO BÁSICA E OS SUJEITOS PERTENCENTES A ESSES ESPAÇOS

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    O presente relato faz referência à participação de dois acadêmicos como residentes no Programa Residência Pedagógica - PRP, vinculado ao Centro de Ciências Humanas e da Educação – FAED, cujo cumprimento se deu por momentos de imersão e docência, nos períodos de 2018.1 a 2019.1, em uma Escola de Educação Básica Municipal da Grande Florianópolis, SC. O referente relato está teoricamente pautado em Freire (1996), Nóvoa (1992); Liz e Martins Filho (2017); Sarmento (2004) e borda vivências do período de docência em uma turma do 4º ano do Ensino Fundamental I o qual relatamos um excerto do projeto realizado que teve por objetivo oportunizar que as/os estudantes (re)conhecessem as proximidades da escola, além de desenvolver compreensão do espaço urbano como um todo dinâmico, sendo o ser humano parte integrante e agente de transformações do mundo em que vive. Descrevemos os motivos para abordagem de tal tema, como iniciamos o trabalho com as/os educandas/os, como foi desenvolvido e finalizado. Para além disso, discutimos acerca da relação entre os sujeitos envolvidos e expressamos nossas percepções advindas da experiência formativa possibilitada pelo PRP.VIVÊNCIAS E POSSIBILIDADES DOCENTES NA RESIDÊNCIA PEDAGÓGICA: UMA APROXIMAÇÃO ENTRE UNIVERSIDADE, EDUCAÇÃO BÁSICA E OS SUJEITOS PERTENCENTES A ESSES ESPAÇO

    Ruxolitinib for Glucocorticoid-Refractory Acute Graft-versus-Host Disease

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    BACKGROUND: Acute graft-versus-host disease (GVHD) remains a major limitation of allogeneic stem-cell transplantation; not all patients have a response to standard glucocorticoid treatment. In a phase 2 trial, ruxolitinib, a selective Janus kinase (JAK1 and JAK2) inhibitor, showed potential efficacy in patients with glucocorticoid-refractory acute GVHD. METHODS: We conducted a multicenter, randomized, open-label, phase 3 trial comparing the efficacy and safety of oral ruxolitinib (10 mg twice daily) with the investigator's choice of therapy from a list of nine commonly used options (control) in patients 12 years of age or older who had glucocorticoid-refractory acute GVHD after allogeneic stem-cell transplantation. The primary end point was overall response (complete response or partial response) at day 28. The key secondary end point was durable overall response at day 56. RESULTS: A total of 309 patients underwent randomization; 154 patients were assigned to the ruxolitinib group and 155 to the control group. Overall response at day 28 was higher in the ruxolitinib group than in the control group (62% [96 patients] vs. 39% [61]; odds ratio, 2.64; 95% confidence interval [CI], 1.65 to 4.22; P<0.001). Durable overall response at day 56 was higher in the ruxolitinib group than in the control group (40% [61 patients] vs. 22% [34]; odds ratio, 2.38; 95% CI, 1.43 to 3.94; P<0.001). The estimated cumulative incidence of loss of response at 6 months was 10% in the ruxolitinib group and 39% in the control group. The median failure-free survival was considerably longer with ruxolitinib than with control (5.0 months vs. 1.0 month; hazard ratio for relapse or progression of hematologic disease, non-relapse-related death, or addition of new systemic therapy for acute GVHD, 0.46; 95% CI, 0.35 to 0.60). The median overall survival was 11.1 months in the ruxolitinib group and 6.5 months in the control group (hazard ratio for death, 0.83; 95% CI, 0.60 to 1.15). The most common adverse events up to day 28 were thrombocytopenia (in 50 of 152 patients [33%] in the ruxolitinib group and 27 of 150 [18%] in the control group), anemia (in 46 [30%] and 42 [28%], respectively), and cytomegalovirus infection (in 39 [26%] and 31 [21%]). CONCLUSIONS: Ruxolitinib therapy led to significant improvements in efficacy outcomes, with a higher incidence of thrombocytopenia, the most frequent toxic effect, than that observed with control therapy

    Pervasive gaps in Amazonian ecological research

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    Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio

    Pervasive gaps in Amazonian ecological research

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    New loci for body fat percentage reveal link between adiposity and cardiometabolic disease risk

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    To increase our understanding of the genetic basis of adiposity and its links to cardiometabolic disease risk, we conducted a genome-wide association meta-analysis of body fat percentage (BF%) in up to 100,716 individuals. Twelve loci reached genome-wide significance (P<5 × 10−8), of which eight were previously associated with increased overall adiposity (BMI, BF%) and four (in or near COBLL1/GRB14, IGF2BP1, PLA2G6, CRTC1) were novel associations with BF%. Seven loci showed a larger effect on BF% than on BMI, suggestive of a primary association with adiposity, while five loci showed larger effects on BMI than on BF%, suggesting association with both fat and lean mass. In particular, the loci more strongly associated with BF% showed distinct cross-phenotype association signatures with a range of cardiometabolic traits revealing new insights in the link between adiposity and disease risk

    Do soil fertilization and forest canopy foliage affect the growth and photosynthesis of Amazonian saplings?

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    Most Amazonian soils are highly weathered and poor in nutrients. Therefore, photosynthesis and plant growth should positively respond to the addition of mineral nutrients. Surprisingly, no study has been carried out in situ in the central Amazon to address this issue for juvenile trees. The objective of this study was to determine how photosynthetic rates and growth of tree saplings respond to the addition of mineral nutrients, to the variation in leaf area index of the forest canopy, and to changes in soil water content associated with rainfall seasonality. We assessed the effect of adding a slow-release fertilizer. We determined plant growth from 2010 to 2012 and gas exchange in the wet and dry season of 2012. Rainfall seasonality led to variations in soil water content, but it did not affect sapling growth or leaf gas exchange parameters. Although soil amendment increased phosphorus content by 60 %, neither plant growth nor the photosynthetic parameters were influenced by the addition of mineral nutrients. However, photosynthetic rates and growth of saplings decreased as the forest canopy became denser. Even when Amazonian soils are poor in nutrients, photosynthesis and sapling growth are more responsive to slight variations in light availability in the forest understory than to the availability of nutrients. Therefore, the response of saplings to future increases in atmospheric [CO2] will not be limited by the availability of mineral nutrients in the soil

    Forward-central two-particle correlations in p-Pb collisions at root s(NN)=5.02 TeV

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    Two-particle angular correlations between trigger particles in the forward pseudorapidity range (2.5 2GeV/c. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B. V.Peer reviewe
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