Ideology and power relations in online newspapers

Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão, Programa de Pós-graduação em Letras/Ingles e Literatura Correspondente, Florianópolis, 2011A mídia, incluindo jornais online, carrega ideologias, muitas vezes implicitamente. Partindo de uma perspectiva da Análise Crítica do Discurso (ACD), todo discurso é político e assim permeado por ideologias. A presente pesquisa aplica a ACD, conforme proposta por Fairclough (1995), por meio de uma Análise Sistêmica Funcional (Halliday e Matthiessen, 2004) de manchetes e leads online de dois jornais britânicos bem conhecidos. Considerando discurso uma prática social, a pesquisa mostra que a transitividade utilizada apresenta geralmente processos materiais, como forma de promover mudanças, mas que outras escolhas linguísticas, como a representação dos atores sociais, por exemplo, contribuem para criar posicionamentos diferenciados por parte do público leitor, expondo uma dimensão ideológica

Stock selection based on cluster analysis

We put forward a technique based on cluster analysis to group stocks in spot markets according to a risk-return criterion. We show how an informed investor will make money using the cluster analysis to select stocks of major companies from North and South America.

Enhancing Teachers’ Professional Identity in a Reflective Learning MOOC

Social interaction in online teacher training can be challenging. Accordingly, we aim to explore how a massive open online course (MOOC) for teacher training affects the professional identity (PI) and development of teachers. This course was developed based on the reflective learning framework (RLF) and utilises modelling as a teaching method. For that, we enrolled in a mixed-method research study. Data were collected from 54 teachers and three discussion boards. Next, it was analysed through content analysis using grounded theory, the application of the narrative reflection assessment rubric (NARRA), and statistical tests. As a result, we observed a significant increase in teachers’ evaluations regarding reflective thinking (from 24% to 67%) and sociocultural learning (from 13% to 39%) after completing the course. Pearson’s r coefficient showed a positive relationship between the fourth NARRA element, transformation, and its predecessors. This indicates that each element plays a role in a continuous development process. The evidence was sufficient to conclude that the training promoted teachers’ PI development, except in the domain of job satisfaction

A comparative Digital Soil Mapping (DSM) study using a non-supervised clustering analysis and an expert knowledge based model - A case study from Ahuachapán, El Salvador

DSM is the inference of spatial and temporal soil property variations using mathematical models based on quantitative relationships between environmental information and soil measurements. The quality of DSM information depends on the method and environmental covariates used for its estimations. We compared two DSM methods to predict soil properties such as Organic Matter “MO” (%), Sand (%), Clay (%), pH (H2O), Phosphorus (mg/kg), Effective Cationic Exchange Capacity “CICE” (cmol/L), Potassium (cmol/L) and Water Holding Capacity (mm/m) for the department of Ahuachapán in El Salvador to support the activities of the Agriculture Landscape Restoration Initiative (ALRI) in the countr

A comparative Digital Soil Mapping (DSM) study using a non-supervised clustering analysis and an expert knowledge based model - A case study from Ahuachapán, El Salvador

DSM is the inference of spatial and temporal soil property variations using mathematical models based on quantitative relationships between environmental information and soil measurements. The quality of DSM information depends on the method and environmental covariates used for its estimations. We compared two DSM methods to predict soil properties such as Organic Matter “MO” (%), Sand (%), Clay (%), pH (H2O), Phosphorus (mg/kg), Effective Cationic Exchange Capacity “CICE” (cmol/L), Potassium (cmol/L) and Water Holding Capacity (mm/m) for the department of Ahuachapán in El Salvador to support the activities of the Agriculture Landscape Restoration Initiative (ALRI) in the countr

Solving DCOPs with Distributed Large Neighborhood Search

The field of Distributed Constraint Optimization has gained momentum in recent years, thanks to its ability to address various applications related to multi-agent cooperation. Nevertheless, solving Distributed Constraint Optimization Problems (DCOPs) optimally is NP-hard. Therefore, in large-scale, complex applications, incomplete DCOP algorithms are necessary. Current incomplete DCOP algorithms suffer of one or more of the following limitations: they (a) find local minima without providing quality guarantees; (b) provide loose quality assessment; or (c) are unable to benefit from the structure of the problem, such as domain-dependent knowledge and hard constraints. Therefore, capitalizing on strategies from the centralized constraint solving community, we propose a Distributed Large Neighborhood Search (D-LNS) framework to solve DCOPs. The proposed framework (with its novel repair phase) provides guarantees on solution quality, refining upper and lower bounds during the iterative process, and can exploit domain-dependent structures. Our experimental results show that D-LNS outperforms other incomplete DCOP algorithms on both structured and unstructured problem instances

Oficina “Cine Afro”: o uso de filmes nas aulas de história e cultura Afro-Brasileira

Anais do II Seminário Seminário Estadual PIBID do Paraná: tecendo saberes / organizado por Dulcyene Maria Ribeiro e Catarina Costa Fernandes — Foz do Iguaçu: Unioeste; Unila, 2014Este trabalho tem por objetivo relatar os resultados e experiências da oficina “Cine afro: o uso de filmes no ensino de História e cultura afro-brasileira e africana” desenvolvido pelos bolsistas do Projeto PIBID/História (Unespar- Campus de Paranavaí-Pr), junto aos alunos do Colégio Estadual Leonel Franca EFM. A partir da análise das principais obras relativas à relação cinema-história, procurou-se subsidiar os bolsistas para o trabalho pedagógico com filmes históricos em sala de aula. Neste texto, relataremos os resultados da atividade realizada em torno do filme Besouro, trabalhado junto aos alunos do 3° ano do Ensino Médio. Por tratar-se de um filme de ação, cuja narrativa gira em torno da figura lendária do capoeirista Besouro de Mangangá, a atividade mostrou-se bastante atrativa para os adolescentes, os quais foram levados a refletir sobre as condições de vida dos negros no período do pós-aboliçã