bluuebunny/crossref_metadata_2025_split huggingface dataset:
A docência na perspectiva da formação de formadores: uma contribuição do Programa Institucional de Bolsa de Iniciação à Docência/PIBID (Teaching in the perspective of the training of trainers: a contribution from the Institutional Program of the Initiation Scholarship to Teaching / Pibid)
Authors: AMORIM DELZA CRISTINA GUEDES , VIEIRA JOSENILTON NUNES 
Published: September 2017

Embasado numa pesquisa de mestrado concluída, este artigo tem como objetivo identificar as concepções sobre a formação docente presentes nos discursos dos professores formadores participantes como coordenadores do Programa Institucional de Bolsa de Iniciação à Docência/Pibid, no IF Sertão - PE. A pesquisa adotou uma abordagem qualitativa de inspiração fenomenológica, na perspectiva etnometodológica, com o fundamento de autores que referendam a discussão sobre formação e profissionalização docente, entre eles: Tardif (2014), Nóvoa (2009), Gatti (2014), Pimenta (2012), Roldão(2009). Este recorte apresenta de forma descritiva os resultados baseados nas entrevistas com os sujeitos diretos da pesquisa: nove professores formadores da instituição os quais atuam nas licenciaturas de Física e Química e no Pibid. Os resultados apresentados evidenciam as bases epistemológicas e praxiológicas da docência, apontados nas vivências e experiências dos professores, discutindo o que é ser professor e ser professor formador de formadores bem com a influência do programa nas concepções de formação e prática docente. Conclui-se que o programa tem mobilizado o desenvolvimento profissional dos professores no sentido de não apenas saber para ensinar, mas também, saber como ensinar.
O PIBID e o desenvolvimento da Scholarship da docência do professor de Matemática (PIBID program and teaching scholarship development of mathematics teacher)
Authors: Basniak Maria Ivete , Estevam Everton José Goldoni , Estevam Everton José Goldoni 
Published: September 2017

Este artigo investiga o potencial do Pibid para o desenvolvimento da scholarship da docência na formação inicial do professor de Matemática. Para tanto, tomamos como elementos de análise as interações emergentes em um grupo focal realizado com quatro professores ex-pibidianos. As análises sustentam-se em um quadro analítico que inter-relaciona as componentes dos dois domínios do quadro interpretativo proposto por Kelchtermans (2009) aos tópicos presentes no roteiro de orientação do grupo focal. Os resultados revelam que as práticas realizadas no Pibid têm potencial para o desenvolvimento das componentes da autocompreensão profissional (autoimagem, autorreflexão, percepção de tarefas, perspectiva de futuro e motivação do trabalho) e da teoria educacional subjetiva. Concluímos, portanto, que o Pibid favorece a articulação do conhecimento baseado na experiência a partir de reflexões coletivas sobre a prática e apontamentos da pesquisa.
O PIBID na Formação de Professores de Matemática em Cursos a Distância da UFMS (PIBID in UFMS distance courses of Mathematics teachers formation)
Authors: Pinto Thiago Pedro , Silva Carla Regina Mariano da 
Published: September 2017

Neste texto abordamos algumas experiências de projetos PIBID em diferentes polos do Curso de Matemática a Distância da Universidade Federal de Mato Grosso do Sul (UFMS) distribuidos por todo estado. O PIBID tem se constituído em um importante espaço de formação e uma importante ação contra a evasão dos discentes destes cursos. Inspirados na filosofia de linguagem de Ludwig Wittgenstein, em sua seugunda fase, propomos reflezões sobre estes processos formativos
O trabalho com a apreciação de poemas no Programa Institucional de Bolsa de Iniciação à Docência (The work with appreciation of poems in the Institutional Program of Teaching Initiation Scholarship)
Authors: Costa Adriana Alves Fernandes 
Published: September 2017

Este artigo discorre sobre o trabalho com apreciação de poemas desenvolvido com uma turma de quarto ano do Ensino Fundamental em uma escola pública no estado Rio de Janeiro. As atividades foram desenvolvidas através do Programa Institucional de Bolsa de Iniciação à Docência, no primeiro semestre do ano de 2015. O objetivo principal foi favorecer a apreciação de poemas de modo a potencializar a formação de leitores sensíveis à linguagem poética. A metodologia, de cunho qualitativo, foi considerada a mais apropriada devido a sua adequação ao processo de interpretação dos dados coletados, estes últimos aconteceram por intermédio de diálogos, saraus de leitura, rodas de conversas e exposições de varais de poemas. Os resultados obtidos indicam para a construção de concepções e práticas não escolarizadas com a leitura, apontam as ações educativas constituídas com intencionalidade prazerosa e lúdica com poemas como sendo as mais carregadas de sentido para as crianças.
O Programa de Bolsa de Iniciação à Docência/Unifal-MG: uma experiência voltada à Educação pelos Direitos Humanos (The Teaching Initiation Grant Program / Unifal-MG: an experience focused on Education for Human Rights)
Authors: Rovai Marta Gouveia de Oliveira , Virtuoso Luciano Sindra 
Published: September 2017

Resumo: Este artigo tem como objetivo apresentar algumas experiências desenvolvidas nos Fóruns realizados pelo Programa de Bolsa de Iniciação à Docência (Pibid), da Universidade Federal de Alfenas, em Minas Gerais. Procurando o diálogo constante e a aproximação entre a Universidade e as escolas parceiras, os encontros envolveram estudantes bolsistas, professores supervisores e coordenadores de área, no sentido de analisar experiências vivenciadas ou observadas nas escolas à luz das teorias educativas e saberes escolares. No ano de 2016 foram abordadas questões relacionadas à indisciplina, à escrita e leitura, mas também ao papel político da educação. Em continuidade, neste ano de 2017, o Pibid/UNIFAL voltou-se para a discussão de uma Educação voltada para os Direitos Humanos, uma vez que os conflitos em torno de questões geracionais, raciais e de gênero emergem nas narrativas e observações de estudantes e professores na prática cotidiana escolar, notando-se a ausência do compromisso com essas temáticas em projetos escolares ou de licenciaturas. Palavras-chave: Pibid/UNIFAL-MG; Fóruns; Educação; Direitos Humanos
A religião como educação
Authors: Albuquerque Maria Betânia Barbosa , Barbosa Rafael Grigório Reis 
Published: September 2017

O artigo analisa a relação entre educação e religião a partir de uma perspectiva antropológica e epistemológica. Parte do pressuposto de que a religião pode ser entendida como um processo educativo, por meio do qual um conjunto de saberes circula e é apreendido pelos sujeitos, contribuindo para a formação de identidades. A partir das contribuições oriundas dos estudos sobre a educação em sua interface com a antropologia e com a história cultural, o artigo objetiva analisar a conexão entre educação e cultura, considerando alguns trabalhos de pesquisa que apontam para o horizonte da religião como educação, bem como refletir sobre alguns desafios epistemológicos para repensar a educação e a pesquisa no campo de confluências entre educação, cultura e religião. Metodologicamente, o texto resulta de pesquisa teórico-bibliográfica tomando por base algumas experiências de pesquisas que abordam a educação ocorrida em ambientes religiosos, para, a partir disso, instaurar uma reflexão sobre o estatuto epistêmico dessas proposições. Conclui-se que a educação vivenciada em espaços religiosos configura-se como uma prática ligada à produção da vida e reprodução social, na qual indivíduos constroem sua subjetividade e dão continuidade a sua existência. Partindo da realidade das múltiplas formas de vivência da experiência religiosa, trata-se de considerar, também, que tais vivências apelam para a necessidade de ampliação da análise investigativa para além dos padrões exclusivamenteracionais ou técnico-científicos predominantes em tais análises.Palavras-chave: Educação. Epistemologia. Religião.
El proceso de ordenamiento ambiental en Cuba. Propuesta y aplicación de su procedimiento metodológico a nivel nacional y regional
Authors: Cárdenas López Obllurys , Mateo Rodríguez Juan Manuel , Martínez Suárez Juan Mario 
Published: September 2017

La necesaria interacción entre el ordenamiento territorial y ordenamiento ambiental fue promulgada en la Ley 81 y en las Estrategias Ambientales Nacionales (EAN) desde 1997, en Cuba. Varias situaciones frenaron su cumplimiento, la falta de procedimientos metodológicos que guiaran el proceso, fue una de ellas por lo que la EAN de 2011-2015 y los Lineamientos del Partido Comunista de Cuba (PCC), en el año 2011, lo ratifican como objetivo. En el abordaje de este problema y en la inclusión de los resultados de los estudios de peligro, vulnerabilidad y riesgo y de los escenarios de cambio climático radica la actualidad de la presente investigación. Teniendo como hipótesis que: el empleo de procedimientos metodológicos integradores y participativos facilitará la elaboración de modelos de ordenamiento ambiental (MOA) que aporten regulaciones, lineamientos y normas ambientales al proceso de ordenamiento territorial; se persigue como objetivo principal: proponer los procedimientos metodológicos para la elaboración de los MOA y realizar su validación a nivel nacional y municipal. Son empleados métodos teóricos y empíricos combinados en la elaboración de los procedimientos y en su validación a diferentes escalas. Se concluye en la pertinencia de utilizar el procedimiento propuesto para la elaboración de los MOA, a diferentes escalas, teniendo como base el enfoque participativo y a las unidades de paisaje, como unidad de análisis.
Microstructural change in ice: I. Constant-deformation-rate tests under triaxial stress conditions
Authors: Melanson P. M. , Meglis I.L. , Jordaan I.J. , Stone B. M. 
Published: September 2017

AbstractExtensive damage to ice occurs during ice structure interaction by microcracking, recrystallization and melting. The objective of this work was to investigate this damage process under confined-stress conditions believed to be associated with impact zones that occur during ice–structure interaction. “Damage” refers to microstructural modification that causes deterioration of the mechanical properties. Prior experimental work has shown that a small amount of deformation causes permanent damage in ice, leading to enhanced creep rates during subsequent loading. To investigate this softening, freshwater granular ice was deformed under moderate confinement (20 MPa) at –10°C, at two rates which bracket ductile and brittle behavior (10−2 s−1 and 10−4 s−1). Samples were deformed to different levels of axial strain up to 28.8%. Thin sections were examined to assess the progressive changes in microstructure.Both grain-boundary and intra-granular cracking began at strains corresponding to the peak stress (1–2%) for tests at both strain rates. The peak stresses were 23.4 MPa for the tests at 10−2 s−1 and 9.8 MPa for the tests at 10−4 s−1. At strains of > 1–2%, dense clusters of intra-granular cracks began to develop in the samples tested at the higher rate. At the lower rate, dynamic recrystallization was apparently the dominant deformation mechanism beyond the peak stress. The average grain-size decreased strongly during the first few per cent strain and then maintained a relatively stable value.
Microstructural change in ice: II. Creep behavior under triaxial stress conditions
Authors: Meglis I. L. , Melanson P. M. , Jordaan I.J. 
Published: September 2017

AbstractThis work investigates the deformation of ice under deviatoric stresses and confining pressures expected during ice–structure interaction. Granular ice was tested under a range of confining pressures (5–60 MPa) and deviatoric stresses (up to 25 MPa), with sample temperatures between –8° and –10°C. Samples were deformed to increasing end-levels of axial strain, and were thin-sectioned and photographed immediately following testing.At all confinement levels, the original texture of the sample is completely transformed within the first 10–15% strain, to a fine-grained matrix with a few larger, isolated grains. At low confinements, grain-size reduction is associated with extensive microcracking. At high confinements, few cracks are observed. Observations suggest that microcracking, melting and recrystallization are active at all levels of confinement, though the relative importance of each depends on the confinement, stress and accumulated strain.Deviatoric stress is a strong factor in controlling the creep, reflected in both the time required for the sample to reach accelerated creep and the tertiary creep rate itself. Two exceptions to this pattern were noted. First, some samples experienced strain localization and eventual rupture. These specimens tended to have higher creep rates even in the initial stages of strain. Second, prior damage resulted in rapid softening compared with the behavior of undamaged specimens. However, when strain rates are compared among all samples at a given level of cumulative axial strain, the creep behavior obeys a power law over the whole range of strain levels tested. Effective viscosity decreased from 107.8 to l06.4 MPa−n s within the first 10% strain, during which the most substantial microstructural changes occurred, and then stayed relatively stable. The stress exponent, n, remained within the range 4.0–4.6.The dominant deformation mechanism appears to depend strongly on confining pressure (cracking at low pressure and dynamic recrystallization at high pressure). Creep rates at high confinement appear to increase relative to those at intermediate confinement, but the influence of temperature must be addressed further.
A computer-based system simulating snowpack structures as a tool for regional avalanche forecasting
Authors: Durand Y. , Giraud G. , Brun E. , Mérindol L. , Martin E. 
Published: September 2017

AbstractThis paper describes the current state of a complete automatic system of three numerical models that simulate snow-cover stratigraphy and avalauche risks for operational avalanche forecasting. The first model, SAFRAN, estimates relevant meteorological parameters affecting snowpack evolution. The second Crocus, is a snow numerical model which simulates the physical processes inside the snowpack and its stratigraphy. The last model, MÉPRA, is an expert system; based on an assessment of snowpack stability, it deduces natural and accidental avalanche risks. To describe the great Variability of the snowpack and the associated avalanche risks, this automatic system simulates snow-cover evolution and its stability for many typical slopes, elevations and aspects representative of the different French massifs. To achieve this result, different kinds of validations have been carried out since winter 1981; they are mainly based on comparisons with different sets of measurements and on the opinion of users.Although the routinely obtained results do not yet take into account all small-scale effects such as wind transport, they have been considered as valuable information by avalanche forecasters since 1992 93 and used operationally since then.
Subglacial drilling at Black Rapids Glacier, Alaska, U.S.A.: drilling method and sample descriptions
Authors: Truffer M. , Motyka R.J. , Harrison W.D. , Echelmeyer K. A. , Fisk B. , Tulaczyk S. 
Published: September 2017

AbstractWe employed a commercial wireline drill rig to investigate the subglacial conditions of Black Rapids Glacier, a well-studied surge-type glacier in the central Alaska Range. The four main goals were: to assess the capabilities of the commercial drilling industry for sampling subglacial material, to investigate the basal morphology, to determine the subglacial geology and to emplace borehole instruments. The drilling was done in an area where seasonal and secular variations in speed are large, and where seismic studies suggested the presence of a till layer. Four holes were drilled at three locations to a maximum depth of 620 m. Three holes yielded samples of basal ice and till, although recovery of the latter was generally poor. Bedrock was sampled in one or possibly two of the holes. In the area sampled, t he glacier is underlain by a till layer some 4–7 m thick, confirming the seismic interpretation. It consists of a sandy matrix at least 20–30% of which comprises larger clasts. Limited samples of the matrix indicate that near the top of the till the porosity is 40%, and t hat some of the pore water is frozen. Geologic studies suggest that the drilling area lies to the north of the Denali Fault, a major tectonic boundary followed by the glacier, and that most of the till is locally derived with transport distances of <2 km.
Combining SAR interferometry and the equation of continuity to estimate the three-dimensional glacier surface-velocity vector
Authors: Reeh Niels , Madsen Søren Nørvang , Mohr Johan Jakob 
Published: September 2017

AbstractUntil now, an assumption of surface-parallel glacier flow has been used to express the vertical velocity component in terms of the horizontal velocity vector, permitting all three velocity components to be determined from synthetic aperture radar interferometry. We discuss this assumption, which neglects the influence of the local mass balance and a possible contribution to the vertical velocity arising if the glacier is not in steady state. We find that the mass-balance contribution to the vertical surface velocity is not always negligible as compared to the surface-slope contribution. Moreover, the vertical velocity contribution arising if the ice sheet is not in steady state can be significant. We apply the principle of mass conservation to derive an equation relating the vertical surface velocity to the horizontal velocity vector. This equation, valid for both steady-state and non-steady-state conditions, depends on the ice-thickness distribution. Replacing the surface-parallel-flow assumption with a correct relationship between the surface velocity components requires knowledge of additional quantities such as surface mass balance or ice thickness.
Automatic reconstruction of polycrystalline ice microstructure from image analysis: application to the EPICA ice core at Dome Concordia, Antarctica
Authors: Gay Michel , Weiss Jerome 
Published: September 2017

AbstractA digital image-processing approach is proposed which allows the extraction of two-dimensional polycrystalline ice microstructure (grain boundaries) from thin sections observed between cross-polarisers. It is based on image segmentation of colour images. The method is applied to the preliminary analysis of the shallow ( Holocene) ice of the European Project for Ice Coring in Antarctica (EPICA) ice core at Dome Concordia. Structural parameters, such as the mean cross-sectional area, shape anisotropy and grain morphology, are obtained. The interest and limitations of this automatic procedure are discussed.
Application of a mass-balance model to a Himalayan glacier
Authors: Kayastha Rijan Bhakta , Ohata Tetsuo , Ageta Yutaka 
Published: September 2017

AbstractA mass-balance model based on the energy balance at the snow or ice surface is formulated, with particular attention paid to processes affecting absorption of radiation. The model is applied to a small glacier, Glacier AX010 in the Nepalese Himalaya, and tests of its mass-balance sensitivity to input and climatic parameters are carried out. Calculated and observed area-averaged mass balances of the glacier during summer 1978 (June-September) show good agreement, namely -0.44 and -0.46 m w.e., respectively.Results show the mass balance is strongly sensitive to snow or ice albedo, to the effects of screening by surrounding mountain walls, to areal variations in multiple reflection between clouds and the glacier surface, and to thin snow covers which alter the surface albedo. In tests of the sensitivity of the mass balance to seasonal values of climatic parameters, the mass balance is found to be strongly sensitive to summer air temperature and precipitation but only weakly sensitive to relative humidity.
Modelling mass balance using photogrammetric and geophysical data: a pilot study at Griesgletscher, Swiss Alps
Authors: Kääb Andreas , Funk Martin 
Published: September 2017

AbstractThe kinematic boundary condition al the glacier surface can be used to give glacier mass balance at a point as a function of changes in the surface elevation, and of the horizontal and vertical velocities. Vertical velocity can in turn be estimated from basal slope, basal ice velocity and surface strain. In a pilot study on the tongue of Griesgletscher, Swiss Alps, the applicability of the relation for modelling area-wide ice flow and mass-balance distribution is tested. The key input of the calculations, i.e. the area-wide surface velocity field, is obtained using a newly developed photogrammetric technique. Ice thickness is derived from radar-echo soundings. Error estimates and comparisons with stake measurements show an average accuracy of approximately ±0.3 ma-1 for the calculated vertical ice velocity at the surface and ±0.7 ma-1 for the calculated mass balance. Due to photogrammetric restrictions and model-inherent sensitivities the applied model appeared to be most suitable for determining area-wide mass balance and ice flow on flat-lying ablation areas, but is so far not very well suited for steep ablation areas and most parts of accumulation areas. Nevertheless, the study on Griesgletscher opens a new and promising perspective for the monitoring of spatial and temporal glacier mass-balance variations.
Intra-seasonal changes in deformation profiles revealed by borehole studies, Storglaciären, Sweden
Authors: Hooke Roger LeB. , Pohjola Veijo Allan , Jansson Peter , Kohler Jack 
Published: September 2017

AbstractIn 1985, 1987 and 1988, we measured deformation of boreholes in the ablation zone of Storglaciären. A different hole was used each year. Deformation profiles were determined for four consecutive time periods between mid-July and early September. All three holes were in an area where the glacier lies in an overdeepened part of the bed, up-glacier from a riegel. The first hole was approximately on the glacier center line while the others were midway between the center line and one or the other margin. Despite large standard errors, variations in the deformation profiles during the melt season are broadly consistent with other data. We thus believe that they are real, and that they reflect changes in the stress field resulting from changes in drag at the bed. A decrease in drag early in the melt season, coupled with convergence of the bed contours towards the riegel, is believed to be responsible for a previously documented increase in vertical velocity just up glacier from the riegal at this time of year. Also noteworthy, but perhaps problematical, was an abrupt transverse shear of at a depth of ~25 m near the center of the glacier in July 1985. The shear took place in the zone in which cold ice near the surface gives way to temperate ice deeper in the glacier.
Climate at the Equilibrium Line of Glaciers
Authors: Ohmura Atsumu , Kasser Peter , Funk Martin 
Published: September 2017

AbstractThe relationships between temperature, precipitation and radiation on glacier equilibrium lines are investigated, using 70 glaciers for which the mass balance and meteorological observations have been carried out for sufficiently long periods. It is found that the characteristic climate at glacier equilibrium lines can be described using the summer 3 months’ temperature in a free atmosphere, annual total precipitation, and the sum of global and long-wave net radiation. All of these are measured at or very near the equilibrium-line altitudes. Then, it is shown how the shift of the equilibriumline will occur as a result of a climatic change. Finally, the effect of the shift of the equilibrium line on the annualmean specific mass balance is analytically derived and compared with observations. The present results make it possible to identify the altitudes in climate models where glacierization should begin, and to evaluate the mass-balance changes as a result of possible future changes in the climate.