USO DE TEORIAS NO CAMPO DE SISTEMAS DE INFORMAÇÃO: MAPEAMENTO USANDO TÉCNICAS DE MINERAÇÃO DE TEXTOS

Esta dissertação visa apresentar o mapeamento do uso das teorias de sistemas de informações, usando técnicas de recuperação de informação e metodologias de mineração de dados e textos. As teorias abordadas foram Economia de Custos de Transações (Transactions Costs Economics TCE), Visão Baseada em Recursos da Firma (Resource-Based View-RBV) e Teoria Institucional (Institutional Theory-IT), sendo escolhidas por serem teorias de grande relevância para estudos de alocação de investimentos e implementação em sistemas de informação, tendo como base de dados o conteúdo textual (em inglês) do resumo e da revisão teórica dos artigos dos periódicos Information System Research (ISR), Management Information Systems Quarterly (MISQ) e Journal of Management Information Systems (JMIS) no período de 2000 a 2008. Os resultados advindos da técnica de mineração textual aliada à mineração de dados foram comparadas com a ferramenta de busca avançada EBSCO e demonstraram uma eficiência maior na identificação de conteúdo. Os artigos fundamentados nas três teorias representaram 10% do total de artigos dos três períodicos e o período mais profícuo de publicação foi o de 2001 e 2007.(AU)

DIVULGAÇÃO CIENTÍFICA NAS REVISTAS CIÊNCIA HOJE, SCIENTIFIC AMERICAN BRASIL E SUPERINTERESSANTE: ESTUDO COMPARATIVO

Estudo comparativo que analisa a divulgação científica (DC) praticada pelas revistas Ciência Hoje (CH), Scientific American Brasil (SAB) e Superinteressante (SI), apontando convergências e divergências entre as três publicações. Objetiva-se analisar como as formas de construção textual e o uso de ilustrações nas matérias e nos artigos de capa das revistas CH, SAB e SI podem contribuir ou interferir de maneira efetiva na DC que praticam. Para tanto, são delineados cinco pressupostos básicos: (1) as publicações de análise priorizam nas capas temas pertencentes às Ciências Básicas (CB) em detrimento das Ciências Humanas e Sociais (CHS); (2) no campo amplo das CB há preferência, nas capas das revistas, por temas relacionados à saúde; (3) as temáticas abordadas nas capas das revistas CH, SAB e SI não são, em geral, coincidentes entre si, pois não seguem uma lógica de matérias quentes ; (4) o uso freqüente de elementos explicativos, termos figurados, fontes de informação diversificadas e citações diretas nas construções textuais das matérias e dos artigos de capa das publicações, bem como o uso de ilustrações devidamente contextualizadas, contribuem para tornar os textos mais inteligíveis; (5) as revistas CH, SAB e SI, embora consideradas revistas de DC, apresentam níveis diferenciados de divulgação, em função do perfil de seus leitores. Em consonância com esses pressupostos, são objetivos específicos: a) identificar, dentro das duas amplas categorias (CB e CHS), os temas mais explorados, reunindo-os em subcategorias para identificar mais afinidade / proximidade entre eles; b) examinar, através das formas de construção textual e do uso das ilustrações nas matérias e nos artigos de capa, os critérios utilizados pelas publicações para divulgar ciência e tecnologia (C&T). Para responder os parâmetros estabelecidos nos objetivos apresentados, a metodologia inclui questionário aplicado aos editores das publicações investigadas e análise de conteúdo (AC) da amostra selecionada, que engloba 19 matérias / artigos de capa das revistas CH, SAB e SI, escolhidos entre julho de 2009 e junho de 2010. Os dados coletados e devidamente discutidos permitem confirmar os pressupostos enunciados, vez que, em termos gerais, é evidente que a DC praticada pelas três revistas apresenta mais divergências do que convergências. Isto possibilita estabelecer níveis distintos de divulgação, manifestos na forma como constroem os textos e como utilizam as ilustrações, com maior dificuldade em SAB e CH e com teor mais simplificado em SI.

MÍDIA E DISCURSO: UM ESTUDO DO DISCURSO DA VEJA SOBRE O FUNK CARIOCA

O trabalho aborda a Revista Veja, publicação da editora Abril, com o objetivo de identificar qual o discurso utilizado nas matérias que abordam o funk carioca como tema. Trata-se de uma pesquisa qualitativa, com perfil descritivo, na qual as teorias da Análise de Discurso da linha francesa foram utilizadas como subsídio para análise. O corpus é composto por um recorte baseado em sete reportagens da publicação. Verificou-se que o funk carioca é relacionado com sexualidade e consumismo e a revista utiliza um discurso autoritário para impor as diferenças de classes sociais dos participantes do gênero e dos leitores da publicação, além da busca por denegrir a imagem do funk carioca, opinando e utilizando a ironia.(AU)

DROGAS E ALUNOS USUÁRIOS DE DROGAS NA ESCOLA: ESTUDO DE REPRESENTAÇÕES SOCIAIS DE PROFESSORES DO ENSINO MÉDIO DA REDE ESTADUAL DE SÃO PAULO

Este estudo apresenta uma discussão a respeito de drogas e de alunos usuários de drogas na escola, explorando as Representações Sociais manifestadas por professores que atuam na Rede Estadual de São Paulo, no ensino Médio. O estudo resgata aspectos históricos e sociais que influenciaram representações sociais sobre drogas em diferentes contextos da sociedade, na perspectiva de buscar compreender a maneira como atualmente elas se apresentam. Discute aspectos conceituais da Teoria das Representações Sociais a partir de Moscovici, considerando contribuições de Jodelet, e outros autores. Os dados coletados por meio de questionários e entrevistas foram analisados com o auxílio de dois softwares, o ALCESTE para análise lexical e o EVOC para análise de associação de palavras ou expressões, em articulação com uma análise de conteúdo clássica sugerida por Maria Laura Puglisi Barbosa Franco. O resultado identificou que as representações sociais sobre drogas na escola e alunos usuários estão ancoradas no modo como a grande mídia trata o tema, de forma alarmista e sensacionalista, influenciando grande parte dos professores que associa drogas na escola à violência. Verificou-se ainda que objetivação do aluno usuário de drogas é simbolizada como doença e que o grupo pesquisado segue as representações sociais há muito tempo estruturadas na sociedade, tendo a normalidade como sinônimo de saúde e a drogadição como condição desviante, decorrente de patologias. Assim, espera-se estar contribuindo para a reflexão sobre o uso e abuso de drogas nas escolas, um tema indispensável e que precisa ser enfrentado para construir-se uma via que leve a uma Educação justa e democrática.(AU)

BASES DE PODER SOCIAL, ENGAJAMENTO NO TRABALHO E RESILIÊNCIA: UM ESTUDO COM SERVIDORES PÚBLICOS MUNICIPAIS DE DIADEMA - SP

Este estudo teve a intenção de analisar até que ponto o uso de diferentes bases de poder dos superiores hierárquicos predizem os níveis de engajamento no trabalho e de resiliência dos trabalhadores, colaborando para aumentar o conhecimento sobre o comportamento dos servidores públicos municipais, quanto aos níveis de engajamento no trabalho e resiliência apresentados. Partiu-se da definição de poder de French e Raven (1959): poder é a influência potencial que o agente O poderia causar no sujeito P; adotou-se o conceito de engajamento no trabalho de Schaufeli e Bakker (2003), que definem engajamento no trabalho como um construto motivacional positivo, caracterizado por vigor, dedicação e absorção, sempre relacionado ao trabalho, o qual implica sentimento de realização, envolve estado cognitivo positivo, é persistente no tempo, apresentando, assim, natureza motivacional e social e por fim utilizou-se o conceito de Grotberg (2005) que define resiliência como a capacidade humana para enfrentar, vencer e ser fortalecido ou transformado por experiências de adversidades . Para isto, definiu-se como objetivo geral testar a capacidade preditiva das bases de poder social dos chefes sobre a resiliência e o engajamento no trabalho, em servidores públicos municipais de Diadema - SP. Participaram deste estudo 95 servidores públicos municipais do município de Diadema, SP, com pequena maioria de indivíduos do sexo feminino (51,6%), com maior percentual de idade entre 25 e 40 anos (38,9%). A maioria dos participantes (60%) declarou possuir nível superior completo (35,8%) ou pós-graduação (24,2%). Utilizou-se os instrumentos: Escala de Bases de Poder do Supervisor (EBPS), escala desenvolvida por Martins e Guimarães (2007); Escala de Avaliação da Resiliência (EAR), escala construída por Martins, Siqueira e Emilio (2011) e a Escala de Engajamento no Trabalho de UTRECHT (UWES) que tiveram seus indicadores de validade e fidedignidade apurados neste estudo. Como resultado constatou-se parcialmente a existência de associação entre engajamento no trabalho e resiliência, pois engajamento no trabalho correlacionou-se com três dos cinco fatores de resiliência: adaptação positiva à mudanças, competência pessoal e persistência diante de dificuldade. Verificou-se que as dimensões que compõem a variável resiliência obtiveram médias ao redor do ponto quatro da escala de resiliência (frequentemente é verdade), indicando que os participantes frequentemente percebem a si mesmos como capazes de enfrentar as adversidades da vida em função da sua alta percepção de persistência, capazes de adaptar-se às mudanças, com bom nível de competência pessoal e de espiritualidade. Constatou-se que as médias nas dimensões que compõem a variável engajamento no trabalho ficaram muito próximas do ponto quatro da escala de engajamento (algumas vezes na semana), indicando que eles percebem em si um alto grau engajamento no trabalho, ou seja, que possuem vigor, são dedicados e deixam-se absorver pelo trabalho. Verificou-se ainda que os trabalhadores percebem o poder de perícia como o mais empregado pelos seus superiores hierárquicos com média de 4,46 (DP= 0,71). Por fim, os resultados obtidos apontaram que o papel e o posicionamento da chefia não provocaram impacto significativo em nenhuma das variáveis consequentes, portanto, bases de poder não explicam resiliência para os trabalhadores participantes desta pesquisa como também não predisseram engajamento no trabalho.

Good practice guide in learning and teaching

This is the second edition of our Aston Business School (ABS) Good Practice Guide and the enthusiasm of the contributors appears undiminished. I am again reminded that I work with a group of very committed, dedicated and professional colleagues. Once again this publication is produced to celebrate and promote good teaching across the School and to offer encouragement to those imaginative and innovative staff who continue to wish to challenge students to learn to maximum effect. It is hoped that others will pick up some good ideas from the articles contained in this volume. Contributors to this Guide were not chosen because they are the best teachers in the School, although they are undoubtedly all amongst my colleagues who are exponents of enthusiastic and inspiring approaches to learning. The Quality Unit approached these individuals because they declared on their Annual Module Reflection Forms that they were doing something interesting and worthwhile which they thought others might find useful. Amongst those reading the Guide I am sure that there are many other individuals who are trying to operate similar examples of good practice in their teaching, learning and assessment methods. I hope that this publication will provoke these people into providing comments and articles of their own and that these will form the basis of next year’s Guide. It may also provoke some people to try these methods in their own teaching. The themes of the articles this year can be divided into two groups. The first theme is the quest to help students to help themselves to learn via student-run tutorials, surprise tests and mock examinations linked with individual tutorials. The second theme is making learning come to life in exciting practical ways by, for example, hands-on workshops and simulations, story telling, rhetorical questioning and discussion groups. A common theme is one of enthusiasm, reflection and commitment on behalf of the lecturers concerned. None of the approaches discussed in this publication are low effort activities on the part of the facilitator, but this effort is regarded as worthwhile as a means of creating greater student engagement. As Biggs (2003)[1] says, in his similarly inspiring way, students learn more the less passive they are in their learning. (Ref). The articles in this publication bear witness of this and much more. Since last year Aston Business School has launched its Research Centre in Higher Education Learning and Management (HELM) which is another initiative to promote excellent learning and teaching. Even before this institution has become fully operational, at least one of the articles in this publication has seen the light of day in the research arena and at least two others are ripe for dissemination to a wider audience via journal publication. More news of our successes in this activity will appear in next year’s edition. May I thank the contributors for taking time out of their busy schedules to write the articles this summer, and to Julie Green who runs the ABS Quality Unit, for putting our diverse approaches into a coherent and publishable form and for chasing us when we have needed it! I would also like to thank Ann Morton and her colleagues in the Centre for Staff Development who have supported this publication. During the last year the Centre has further stimulated the learning and teaching life of the School (and the wider University) via their Learning and Teaching Week and sponsorship of Teaching Quality Enhancement Fund (TQEF) projects. Pedagogic excellence is in better health at Aston than ever before – long may this be because this is what life in HE should be about.

A semantic modelling approach to knowledge based statistical software

The topic of this thesis is the development of knowledge based statistical software. The shortcomings of conventional statistical packages are discussed to illustrate the need to develop software which is able to exhibit a greater degree of statistical expertise, thereby reducing the misuse of statistical methods by those not well versed in the art of statistical analysis. Some of the issues involved in the development of knowledge based software are presented and a review is given of some of the systems that have been developed so far. The majority of these have moved away from conventional architectures by adopting what can be termed an expert systems approach. The thesis then proposes an approach which is based upon the concept of semantic modelling. By representing some of the semantic meaning of data, it is conceived that a system could examine a request to apply a statistical technique and check if the use of the chosen technique was semantically sound, i.e. will the results obtained be meaningful. Current systems, in contrast, can only perform what can be considered as syntactic checks. The prototype system that has been implemented to explore the feasibility of such an approach is presented, the system has been designed as an enhanced variant of a conventional style statistical package. This involved developing a semantic data model to represent some of the statistically relevant knowledge about data and identifying sets of requirements that should be met for the application of the statistical techniques to be valid. Those areas of statistics covered in the prototype are measures of association and tests of location.

A Framework for Fast Classification Algorithms

Today, due to globalization of the world the size of data set is increasing, it is necessary to discover the knowledge. The discovery of knowledge can be typically in the form of association rules, classification rules, clustering, discovery of frequent episodes and deviation detection. Fast and accurate classifiers for large databases are an important task in data mining. There is growing evidence that integrating classification and association rules mining, classification approaches based on heuristic, greedy search like decision tree induction. Emerging associative classification algorithms have shown good promises on producing accurate classifiers. In this paper we focus on performance of associative classification and present a parallel model for classifier building. For classifier building some parallel-distributed algorithms have been proposed for decision tree induction but so far no such work has been reported for associative classification.

A Mathematical Apparatus for Domain Ontology Simulation. Logical Relationship Systems

* This paper was made according to the program of fundamental scientific research of the Presidium of the Russian Academy of Sciences «Mathematical simulation and intellectual systems», the project "Theoretical foundation of the intellectual systems based on ontologies for intellectual support of scientific researches".

Intelligent Systems Memory Structuring

The requirements for the memory structuring of intelligent systems are discussed. Simultaneously with the introduction of information into memory there should take place the processes of association links (bonds) formation, hierarchy systematizing, classification and concept formation. The growing pyramidal networks (GPN) meet these requirements. Many years of experience of GPN application for data analyses in chemistry and material studies proves their sufficiently high potential.

Seeking Relationships in Big Data: A Bayesian Perspective

The real purpose of collecting big data is to identify causality in the hope that this will facilitate credible predictivity . But the search for causality can trap one into infinite regress, and thus one takes refuge in seeking associations between variables in data sets. Regrettably, the mere knowledge of associations does not enable predictivity. Associations need to be embedded within the framework of probability calculus to make coherent predictions. This is so because associations are a feature of probability models, and hence they do not exist outside the framework of a model. Measures of association, like correlation, regression, and mutual information merely refute a preconceived model. Estimated measures of associations do not lead to a probability model; a model is the product of pure thought. This paper discusses these and other fundamentals that are germane to seeking associations in particular, and machine learning in general. ACM Computing Classification System (1998): H.1.2, H.2.4., G.3.

Organizational culture, organizational climate, and collaborative capacity for planning

The objective of this study was to investigate the relationship of organizational culture and organizational climate on participant perceptions of collaborative capacity for planning, within the context of the Florida School Readiness Coalitions (FSRCs). Three hypotheses were proposed for study: First, that organizational culture would be correlated to organizational climate; second, that organizational culture would be correlated to collaborative capacity for planning; and the third that organizational climate would be correlated to collaborative capacity for planning. ^ A cross-sectional survey research design was used to obtain data from participants in 25 Florida School Readiness Coalitions. Pearson product-moment correlations were used to examine the association between the dependent variable, collaborative capacity for planning, and the independent variables, organizational culture and climate. Bivariate analyses revealed a significant level of association for five culture indicators to collaborative capacity for planning: motivation, interpersonal, service, supportive and individualistic indicators, and four climate indicators: cooperation, job satisfaction, organizational commitment, and role clarity. Findings suggest (a) a constructive culture and positive climate were present within the FSRCs during the period of study and (b) participants perceived that the collaborative capacity for planning existed. Hierarchical multiple regression, controlling for effects of participant demographics, were used to examine the degree to which organizational culture and climate predict collaborative capacity. The culture indicators, supportive and individualistic, and the climate indicator job satisfaction accounted for 46% of the variance in collaborative capacity for planning. No other indicators of the independent variables demonstrated significance. The findings suggests that (a) culture and climate should be studied together, (b) culture and climate are two constructs that may provide knowledge about the way community groups work together, and (c) the collaborative capacity of groups planning services such as the FSRCs may benefit through consideration of how culture and climate affect service planners' relationships, communication, and ability to achieve a mission or goal. Culture and climate may offer social workers new information about internal factors affecting the collaborative process. Further investigation of these constructs with other types of groups is warranted. ^

Classes sociais e eleições presidenciais no Brasil contemporâneo (2002-2010)

This work aims to analyze, in terms of class, the social composition of the constituency of the presidential candidates of the Workers Party in 2002, 2006 and 2010 elections. Such research object is constructed from a preliminary critical debate with recent Brazilian electoral studies, especially the literature on the infl uence of social programs on voting and Singer’s formulations about the lulismo phenomenon. Incorporating advances and pointing out gaps in such research efforts, is formulated a roadmap for empirical research constituted of three key elements - the measure ment of the dimensions of class structure in Brazilian capitalism; the observation of material interests related to the constituents locations of such structure; the development of measures of association between the insertion in class groupings and indivi dual voting behavior. Based on the neo - Marxist approach of class analysis, especially as formulated by Wright, it is made an adaptation of the typology formulated by such approach (mainly developed by Santos to the Brazilian case) to the data available fro m databases of censuses of 2000 and 2010. This theoretical construct reveals that during the period considered for the analysis, the structure of class - relations in Brazil became more proletarized and consequently had a decrease of the dimensions of the de stitute class locations. In addition, it was found, in relation to the objective class interests, widespread increments of economic welfare that allowed advances in relation to the material conditions of the proletariat, without, however, incurring losses to the privileged class positions. Such changes in the structural sphere focused in various ways on the political arena. Based on an adaptation to electoral analysis of the concept of "class formation", also formulated by Wright, associated with the use of techniques of ecological inference (especially those proposed by King and associates), it was possible to draw up an overview of class voting in period studied. As main results, three general patterns of individual voting behavior, related to each of the three analyzed class groupings were identified - a contraposition against PT candidates, by voters in privileged class locations; the adhesion, recurring throughout the study period, of workers to Lula and Dilma Rousseff; a favorable electoral shift unde rtaken by economically deprived voters in favor of those candidatures in the 2006 election.

Todo nordeste que couber a gente publica: o The New York Times e as representações do nordeste brasileiro na era da política da boa vizinhança (1933-1945)

The Brazilian Northeast has been a constant subject for journalists of one of the world's leading media companies - The New York Times - between 1933 and 1945. This time, the US government implemented a new foreign policy for Latin America - known as the Good Neighbor Policy. It preached, various points including more respect and attention to the countries south of U.S. borders. Because of her geostrategic importance, Brazil was one of the countries that received the most attention of the bureaucracy and American press. This study investigates the multiple Northeast representations formulated in The New York Times' pages when the Americans were spotlight is on the region. It delineates similarities and differences between the NYT, the press and the governments of the United States and Brazil from the ways of conceiving this particular part of Brazil. Through the analysis of texts, photographs and maps, it is dedicated to establish connections between spaces, press and politics of the 1930s and 1940s. These decades there were relevant changes in the political landscape of both countries that permeated the news, reports and articles of NYT. Circumstances such as the 1935 armed uprisings - known as Communist Conspiracy - the installation and operation of the New State, and especially the Brazilian and US participation in World War II and the bilateral negotiations on the installation of US bases in Brazil were cardinal for the various Northeast images that circulated in the publication. The region was repeatedly subject of correspondent of the New York newspaper in Brazil, Frank M. Garcia, but also present on matters of professionals responsible for various sections: review of books, publishing, tourism, foreign affairs, etc. Along the investigated period, the visions of the region made in the articles published in the newspaper that suffered major metamorphoses. Starting with Northeast of the drought, famine and death recurrent in Brazilian literature to the most dangerous point for hemispheric defense, passing through representations of the American West lawless nineteenth century and the Latin America marked by the dominance of exotic nature and stagnation, a space to be transformed by the US technical knowledge.

Avaliação de polimorfismos funcionais nos genes de reparo XRCC1, APEX1, XPD e XPF em carcinomas de células escamosas orais

Base excision repair (BER) and nucleotide excision repair (NER) pathways play critical role in maintaining genome integrity. Polymorphisms in BER and NER genes which modulate the DNA repair capacity may affect the susceptibility and prognosis of oral cancer. This study was conducted with genomic DNA from 92 patients with oral squamous cell carcinomas (OSCC) and 130 controls. The cases were followed up to explore the associations between BER and NER genes polymorphisms and the risk and prognosis of OSCC. Four single-nucleotide polymorphisms (SNPs) in XRCC1 (rs25487), APEX1 (rs1130409), XPD (rs13181) and XPF (rs1799797) genes were tested by polymerase chain reaction – quantitative real time method. The GraphPad Prism version 6.0.1 statistical software was applied for statistical analysis of association. Odds ratio (OR), hazard ratio (HR), and their 95 % confidence intervals (CIs) were calculated by logistic regression. Kaplan-Meier curve and Cox proportional hazard model were used for prognostic analysis. The presence of polymorphic variants in XRCC1, APEX1, XPD and XPF genes were not associated with an increased risk of OSCC. Gene-environment interactions with smoking were not significant for any polymorphism. The presence of polymorphic variants of the XPD gene in association with alcohol consumption conferred an increased risk of 1.86 (95% CI: 0.86 – 4.01, p=0.03) for OSCC. Only APEX1 was associated with decreased specific survival (HR 3.94, 95% CI: 1.31 – 11.88, p=0.01). These results suggest an interaction between polymorphic variants of the XPF gene and alcohol consumption. Additionally APEX1 may represent a prognostic marker for OSCC.