561 research outputs found

    Reglamento sobre enseñanzas en el medio batallon artillería

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    Dado en bogotá, a 4 de octubre de 1872: Dirección i organización de las clases - Enseñanzas - Exámenes - Sueldos - Disposiciones varia

    Regulating emotions and learning motivation in higher education students

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    This study has a two-fold objective: First, to adapt and validate the Emotions and Motivation Self-Regulation Questionnaire (EMSR-Q) with university students in Colombia, and secondly, to verify whether the relationship model between emotional and motivational self-regulation and academic performance coincides with what was initially proposed by the questionnaire’s authors. A total of 644 higher education students participated in the study. To test the questionnaire’s structural validity and generalizability across cultures and educational levels, confirmatory factor and cross validation analyses were carried out. Besides, to test its predictive validity, a multiple linear regression analysis was carried out. Results showed that the data fit the model well, that the scales of the questionnaire have adequate reliability, and that negative self-regulation of stress and avoidance-oriented self-regulation related negatively and significantly to academic performance. The results support the emotion and motivation self-regulation model proposed by the author

    Towards Scalable Visual Exploration of Very Large RDF Graphs

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    In this paper, we outline our work on developing a disk-based infrastructure for efficient visualization and graph exploration operations over very large graphs. The proposed platform, called graphVizdb, is based on a novel technique for indexing and storing the graph. Particularly, the graph layout is indexed with a spatial data structure, i.e., an R-tree, and stored in a database. In runtime, user operations are translated into efficient spatial operations (i.e., window queries) in the backend.Comment: 12th Extended Semantic Web Conference (ESWC 2015

    Lattice Model for water-solute mixtures

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    A lattice model for the study of mixtures of associating liquids is proposed. Solvent and solute are modeled by adapting the associating lattice gas (ALG) model. The nature of interaction solute/solvent is controlled by tuning the energy interactions between the patches of ALG model. We have studied three set of parameters, resulting on, hydrophilic, inert and hydrophobic interactions. Extensive Monte Carlo simulations were carried out and the behavior of pure components and the excess properties of the mixtures have been studied. The pure components: water (solvent) and solute, have quite similar phase diagrams, presenting: gas, low density liquid, and high density liquid phases. In the case of solute, the regions of coexistence are substantially reduced when compared with both the water and the standard ALG models. A numerical procedure has been developed in order to attain series of results at constant pressure from simulations of the lattice gas model in the grand canonical ensemble. The excess properties of the mixtures: volume and enthalpy as the function of the solute fraction have been studied for different interaction parameters of the model. Our model is able to reproduce qualitatively well the excess volume and enthalpy for different aqueous solutions. For the hydrophilic case, we show that the model is able to reproduce the excess volume and enthalpy of mixtures of small alcohols and amines. The inert case reproduces the behavior of large alcohols such as, propanol, butanol and pentanol. For last case (hydrophobic), the excess properties reproduce the behavior of ionic liquids in aqueous solution.Comment: 28 pages, 13 figure

    Estudo de espaços educativos em Artes

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    Este artigo tem o objetivo de relatar uma experiência educativa em Artes Visuais que teve como proposição a sistematização da produção conceitual prática-metodológica em Artes Visuais em processos de formação para a educação básica, em uma viagem de estudos com a produção de respectivos relatórios. O desenvolvimento do projeto ocorre em uma viagem de estudos a Curitiba, PR para conhecer espaços educativos que desenvolvem atividades de ensino da Arte tanto no âmbito formal quanto no informal. O artigo explicitará que as alunas do 5° período do Curso de Artes Visuais foram instigadas a apreciar as demonstrações de práticas do ensino da Arte e suas aplicabilidades em instituições oficiais. O objetivo principal da experiência educativa foi o de buscar uma perspectiva criada a partir das vivências voltadas à descoberta e à redescoberta da criação e recriação, buscando uma construção permanente de outros caminhos ressignificando o sentido dos espaços do sentir, do fazer, do estar junto com o outro, em processo de ensino-aprendizagem em Artes Visuais. Observar os espaços educativos se instala como um processo de grande valia, para aprender as construções de aprendizagem em Artes Visuais em espaços culturais fora da sala de aula em uma relação da aplicabilidade de novas perspectivas metodológicas e artísticas de como desenvolver uma proposta nas concepções da Arte na contemporaneidade. A metodologia se instalou a partir da visitação de espaços ícones da capital paranaense como: Jardim Botânico, Museu do Oscar Niemeyer, Centro de Criatividade, Museu Solar do Barão e Memorial da cidade de Curitiba, PR. As visitações foram previamente agendadas para uma melhor sistematização da aprendizagem a partir do acompanhamento de monitorias que ampliaram significativamente as informações sobre os respectivos espaços. A apresentação dos resultados foi medida pela participação efetiva de cada participante, bem como da construção de um relatório sistematizado com informações pertinentes aos locais visitados. E, por fim, a construção de uma produção poética que refletisse artisticamente a reconstituição do vivido, experienciado e apreciado. Conclui-se que há a diversidade do olhar atento ao vivido e a geração de múltiplas possibilidades de revermos nossas próprias identidades enquanto sujeitos e nossas vinculações sistêmicas com os outros.Palavras-chave: Ação educativa. Espaços de arte informal. Ressignificação

    Regulating emotions and learning motivation in higher education students

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    This study has a two-fold objective: First, to adapt and validate the Emotions and Motivation Self-Regulation Questionnaire (EMSR-Q) with university students in Colombia, and secondly, to verify whether the relationship model between emotional and motivational self-regulation and academic performance coincides with what was initially proposed by the questionnaire’s authors. A total of 644 higher education students participated in the study. To test the questionnaire’s structural validity and generalizability across cultures and educational levels, confirmatory factor and cross validation analyses were carried out. Besides, to test its predictive validity, a multiple linear regression analysis was carried out. Results showed that the data fit the model well, that the scales of the questionnaire have adequate reliability, and that negative selfregulation of stress and avoidance-oriented self-regulation related negatively and significantly to academic performance. The results support the emotion and motivation self-regulation model proposed by the authors

    Effect of hazelnut on serum lipid profile and fatty acid composition of erythrocyte phospholipids in children and adolescents with primary hyperlipidemia : a randomized controlled trial

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    Background & aim: Regular intake of nuts improves lipid profile and thus reduces the cardiovascular (CV) risk associated with hyperlipidemia. The aim of the study was to investigate the effect of a dietary intervention with hazelnuts (HZNs, 15-30 g/day, depending on patient weight) on serum lipid profile, anthropometric parameters and fatty acids (FAs) composition of erythrocyte phospholipids in children and adolescents with primary hyperlipidemia. Methods: Eight-week randomized, single blind, controlled, three-arm, parallel-group study. Sixty-six subjects were enrolled and randomized in 3 groups receiving: 1) hazelnuts with skin (HZN+S); 2) hazelnuts without skin (HZN-S); 3) dietary advices for hyperlipidemia only (controls). Before and after intervention, clinical parameters were measured and blood samples were collected for the evaluation of serum lipid levels and phospholipid FA composition of erythrocytes. Results: Two-way ANOVA showed a significant effect of time on serum low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C)/LDL-C ratio and non-HDL-C (p < 0.001), but not of treatment and time x treatment interaction. In particular, HZN+S and HZN-S significantly reduced the concentrations of LDL-C and increased HDL-C/LDL-C ratio. HZNs also had a favorable impact on FAs composition of erythrocyte phospholipids, as demonstrated by time x treatment interaction, with a significant increase of monounsaturated fatty acids (MUFAs) (p = 0.008) and MUFAs/saturated fatty acids (SFAs) ratio (p = 0.002) with respect to the control group. Conclusions: For the first time, we documented a positive effect of HZN consumption on lipid profile and FA composition of erythrocyte phospholipids in children with primary hyperlipidemia. Further studies are encouraged to better define HZN impact on the markers of CV risk in this population

    Uso de mezclas de azoxistrobina y triazoles para controlar enfermedades de fin de ciclo de la soja

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    134-139Widely spread in Argentina, late season diseases (LSD), cause yield losses and seed quality changes. Leaf application of fungicides is an effective procedure to manage LSD under the current cropping conditions (monocrop and no-till system). The aims of the present study were 1) to determine causal agents of LSD, 2) to evaluate yield reduction caused by LSD and 3) to evaluate the efficiency of mixtures containing triazoles and strobirulins, sprayed during R3 or R5 reproductive stages to control LSD. Four experiments were carried out in a randomized complete block design, with four replicates in Armstrong, Santa Fe, Argentina, in a soybean cultivation area in the Pampeana Region. Two assays were performed in 2004/2005, and the remaining ones in 2005/2006 growing seasons. Two azoxystrobin mixtures, one with cyproconazole and the other with difenoconazole, and a mixture of the latter two were tested. The following pathogens were detected: Cercospora kikuchii, Colletotrichum truncatum, Septoria glycines, Glomerella glycines y Phomopsis sojae. All treatments presented higher yield than control, with 5 percent of statistic significance. It can be concluded that, under the present experimental conditions, characterized by frequent rains between R1 and R5.5, the tested mixtures efficiently controlled LSD
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