bluuebunny/crossref_metadata_2025 huggingface dataset:
Engenharia didática e projetos de modelagem geométrica: potencial para construção de conceitos no Ensino Fundamental à luz das ideias de Goldenberg
Authors: Silva Rodrigo Sychocki
Published: August 2019

Resumo: A proposta desse artigo é apresentar e discutir os resultados de uma pesquisa a nível de mestrado envolvendo o uso das tecnologias para o ensino de matemática. Analisam-se a manifestação e o desenvolvimento dos hábitos de pensamento matemático em estudantes do ensino fundamental envolvidos no trabalho com modelagem geométrica. Busca-se nas ideias de Goldenberg a fundamentação teórica necessária para analisar e avaliar a evolução dos sujeitos envolvidos durante a sequência de atividades propostas. A construção de um projeto de investigação envolvendo os aspectos teóricos propostos pela engenharia didática foi essencial para a interpretação e a análise dos resultados posteriores à realização da sequência de atividades. Com a proposta, procura-se mostrar que a inserção da tecnologia nas aulas de matemática tornou-se fundamental para a construção do conhecimento matemático pelos alunos. Ao final da pesquisa, assumindo-se a forma de um produto, disponibiliza-se na internet o ambiente virtual construído e utilizado ao longo das atividades propostas. Palavras-chave: Educação Matemática. Engenharia Didática. Hábitos de Pensamento Matemático. Sequência Didática. Tecnologia. TEACHING ENGINEERING AND MODELLING GEOMETRIC PROJECTS: POTENTIAL FOR BUILDING CONCEPTS IN ELEMENTARY EDUCATION IN THE LIGHT OF GOLDENBERG IDEASAbstract: The purpose of this paper is to present and discuss the results of a master degree research involving the use of technologies in mathematics teaching. It analyzes the manifestation and the development of mathematical thinking habits in elementary school students involved in working with geometric modeling. Search up the Goldenberg ideas the theoretical foundation required to analyze and evaluate the evolution of the subjects involved in the sequence of proposed activities. The construction of a research project involving the theoretical aspects proposed by the didactic engineering was essential for the interpretation and analysis of subsequent results to carry out the sequence of activities. With the proposal seeks to show that the inclusion of technology in math classes has become central to the construction of mathematical knowledge by students. At the end of the survey, assuming the form of a product available on the Internet a virtual environment constructed and used throughout the proposed activities.Keywords: Mathematics education. Didactic Engineering. Mathematical thinking habits. Teaching sequence. Technology.
Inclusão digital de jovens e adultos em processo de alfabetização: relato de experiências a partir de programa institucional
Authors: Limberger Diego , Kniphoff da Cruz Marcia , Mergen Carla
Published: August 2019

Resumo: A Educação de Jovens e Adultos – EJA caracateriza-se como uma modalidade de ensino em que jovens e adultos retomam seus estudos após certo período de afastamento da escola ou, ainda, tenham acesso à sala de aula pela primeira vez. Com o objetivo de auxiliar nesse processo, este artigo apresenta um relato desenvolvido através do Programa Institucional de Iniciação à Docência – PIBID, de modo que a parceria entre bolsistas acadêmicos do curso de Licenciatura em Computação na graduação e professores da escola possibilitou aos alunos de turma de EJA em processo de alfabetização o contato com computadores e suas ferramentas. Esta atividade, desenvolvida ao longo do ano de 2014, impactou positivamente no aumento da autoestima dos alunos e melhorou os índices de assiduidade, uma vez que as aulas passaram a ser mais dinâmicas, possibilitando a inclusão digital dos estudantes envolvidos. Palavras chave: Alfabetização. Iniciação à docência. Informática.  DIGITAL INCLUSION OF YOUTH AND ADULTS IN PROCESS OF LITERACY: REPORT OF EXPERIENCE PROGRAM FROM INSTITUTIONAL Abstract: Youth and Adult Education - EJA has characteristics as teaching modality in which youth and adults to resume their studies after a certain period of school dropouts or have access to the classroom for the first time. In order to assist in this process, this article presents a report developed by the Institutional Program of Introduction to Teaching - PIBID, so that the partnership between undergraduate students in the Computing Degree course and school teachers allowed the class of EJA students on literacy process contact with computers and tools. This activity was developed during 2014 and had a positive impact on increasing the self-esteem of students and improved attendance rates, since the classes have become more dynamic, enabling the digital inclusion of students involved. Keywords: Literacy. Initiation to Teaching. Computer.
Representações sociais dos combustíveis: reflexões para o ensino de Química e Ciências na abordagem CTS
Authors: Fonseca Carlos Ventura
Published: August 2019

Resumo: Este trabalho, identificado com o paradigma do professor-pesquisador, buscou investigar as representações sociais de estudantes de um curso Técnico em Eletrônica integrado ao ensino médio sobre o tema “combustível”. Além disso, procurou identificar como essas informações podem qualificar o trabalho de professores-pesquisadores de Química e Ciências no contexto da sala de aula, especificamente pensando-se em uma abordagem CTS. As opções metodológicas envolveram a aplicação de um questionário contendo três questões interconectadas, que exploraram: respostas descritivas, associação livre de palavras e expressão através de desenho. A análise de conteúdo dos dados obtidos evidenciou que os alunos entendem os combustíveis como materiais relacionados à Química, sendo uma necessidade social para a produção de energia, em que pesem os problemas ambientais decorrentes de seu uso. Os extratos analíticos também revelaram que o estudo das representações sociais, no âmbito das pesquisas educacionais, viabiliza a explicitação das teorias de senso comum dos estudantes e colabora para o planejamento e a efetivação de uma abordagem pedagógica com viés crítico sobre a sociedade, a tecnologia e a ciência. Palavras-chave: Representações sociais. Combustíveis. Ensino de Química. CTS. SOCIAL REPRESENTATIONS ON FUEL: REFLECTIONS FOR THE CHEMISTRY AND SCIENCE EDUCATION IN STS APPROACH Abstract: This work, identified with the paradigm of teacher-researcher, sought to investigate the social representations on "fuel" of students belonging to an electronic technical course in integrated high school. Moreover, sought to identify how this information may qualify the work of Chemical and Science teachers-researchers in the context of the classroom, specifically thinking into a STS approach. The methodological choices involved the application of a questionnaire containing three interconnected questions that explored: descriptive answers, free word association and expression through drawing. The content analysis of the data obtained showed that students understand the fuel as related to chemical materials, being a social need for energy production, in spite of the environmental problems arising from its use. Analytical extracts also revealed that the study of social representations in the context of educational research enables the explanation of common sense theories of students and collaborate to the planning and execution of an educational approach with critical bias on society, technology and science. Keywords: Social representation. Fuel. Chemistry teaching. STS.
Existência de soluções para Sistemas Lineares 2x2: um estudo de caso envolvendo o uso da tecnologia digital com estudantes do ensino médio
Authors: Da Silva Rodrigo Sychocki , Da Silva Michelsch João , Machado Germano Mateus Zugno
Published: August 2019

Resumo: A proposta do presente artigo é apresentar e discutir os resultados de uma pesquisa de trabalho de conclusão de curso realizada em 2014. Através de uma revisão bibliográfica inicial, verificou-se que a forma na qual tradicionalmente se apresenta o conteúdo de Sistemas Lineares 2x2 prioriza o tratamento algébrico, e o estudo da interpretação gráfica da solução acaba por ser insatisfatório ou inexistente. Este tra­balho fundamenta-se na teoria de representações semióticas de Raymond Duval, uma vez que nossa hipótese é a de que a mudança no tratamento dos registros internos de representação contribui e catalisa o processo de aprendizagem. Na tentativa de verificar essa hipótese, propõe-se uma sequência de atividades organizada em dois momentos: um momento inicial, em que não se faz uso de recursos tecnológicos, e um segundo momento em que se faz. Buscou-se com o uso dosoftware GeoGebra tornar o processo dinâmico e interativo, facilitando a construção do conhecimento pelo próprio estudante. Os dados analisados, obtidos a partir do material produzido pelos estudantes, revelam que o recurso tecnológico utilizado no decorrer das atividades produz um efeito positivo na construção e aprendizagem dos conceitos matemáticos discutidos na abordagem envolvendo Sistemas Lineares 2x2.Palavras-chave: Sistemas Lineares. Tecnologia. Representações Semióticas. Registros de Representação. EXISTENCE OF SOLUTIONS FOR LINEAR SYSTEMS 2X2: A CASE STUDY INVOLVING THE USE OF DIGITAL TECHNOLOGY WITH HIGH SCHOOL STUDENTS Abstract: The purpose of this paper is to present and discuss the results of an end course work survey, conducted in 2014. Through an initial literature review, it was found that the form in which content has traditionally been Linear Algebraic Systems 2x2 prioritizes the treatment and study of graphical interpretation of the solution turns out to be unsatisfactory or nonexistent. This work is based on the theory of semiotic representations of Raymond Duval, since our hypothesis is that the change in the treatment of representation registers contributes and catalyzes the learning process. In an attempt to verify our hypothesis, we propose a sequence of activities organized in two phases: in a first moment does not make use of technological resources and the second time yes. We attempted to use the software GeoGebra make the dynamic and interactive process, facilitating the construction of knowledge by the student himself. The analyzed data obtained from the material produced by the students reveal that technological resource used in the course of activities has a positive effect in building and learning of mathematical concepts discussed in approach involving Linear Systems 2x2.Keywords: Linear Systems. Technology. Semiotics representations. Representation records.
Educação ambiental na formação inicial de professores de Matemática em Boa Vista/RR: temas Transversais e interdisciplinaridade
Authors: Dal-Farra Rossano André , Veloso Ney David
Published: August 2019

Resumo: O presente artigo apresenta os resultados preliminares de um estudo realizado com licenciandos de Matemática de uma instituição pública de Boa Vista/RR relacionando interdisciplinaridade, situações-problema e questões ambientais locais e globais. Entre as premissas que motivaram os pesquisadores para a realização desses estudos estão: a urgência da questão ambiental na Região Amazônica da qual faz parte Roraima e a relevância de incluir os saberes matemáticos na compreensão desses aspectos por parte de docentes e discentes. Um grupo de 30 graduandos do primeiro semestre participou de atividades envolvendo a exposição dialogada, debates com docentes/pesquisadores e a aplicação de questionários compondo um conjunto de dados analisados por meio dos Métodos Mistos. A maior parcela dos estudantes considerou satisfatória a abordagem vivenciada na educação básica em relação à interdisciplinaridade (84%), situações-problema (63%) e questões ambientais (60%), embora considerem de grande relevância abordar esses aspectos na Licenciatura em Matemática, indicando boas possibilidades para a adoção de práticas educativas calcada na transversalidade e na interdisciplinaridade no âmbito da formação inicial de professores. Palavras-chave: Interdisciplinaridade. Educação Matemática. Formação de Professores. Educação Ambiental. Situações-problema. ENVIRONMENTAL EDUCATION IN THE INITIAL TRAINING OF TEACHERS OF MATHEMATICS OF BOA VISTA/RR: TRANSVERSAL THEMES AND INTERDISCIPLINARITYAbstract: This article presents the preliminary results of a study performed with licensees of Mathematics of a public institution of Boa Vista/RR correlating interdisciplinarity, problem situations, and local and global environmental issues. The assumptions that motivated the study are the urgency of the environmental issue in the Amazon region, the relevance of including the mathematical knowledges in understanding of these aspects on the part of teachers and students. A group of 30 undergraduate students of first semester participated of activities involving exposure dialogued, discussions with teachers/researchers and the application of questionnaires composing a set of data analyzed by mixed methods. The majority of students considered satisfactory the approach experienced in basic education in relation to interdisciplinarity (84%), problem situations (63%) and environmental issues (60%). However, they considered relevant to address these aspects in Mathematics, indicating good opportunities for the adoption of educational practices with transversality and interdisciplinarity in the framework of the teacher initial education. Keywords: Interdisciplinarity. Mathematics education. Teacher Education. Environmental Education. Problem-situations.
Percepção dos professores dos cursos técnicos e tecnológicos sobre a formação continuada
Authors: Pinheiro Alfredo Bravo Marques , Pinheiro Maria Deuceny Da Silva Lopes Bravo , Barreira Carlos Manuel Folgado
Published: August 2019

Resumo: A inquietação com a formação pedagógica dos docentes, mais especificamente os que atuam na Educação Profissional e Tecnológica, tem demonstrado a distância entre a formação específica e a formação pedagógica. Neste âmbito, a preparação dos profissionais tem gerado fóruns de debates, registrando como preocupação maior, ampliar uma formação que tenha qualidade, que incorpore a preparação didático-pedagógica determinada pela primordialidade dos professores, seja na formação inicial seja na continuada. O presente artigo tem por objetivo aprofundar o que é ser professor na ótica da prática reflexiva, reunindo aspectos do saber pedagógico e teórico no horizonte de quem ensina, de forma a contribuir para a melhoria do processo ensino-aprendizagem. Os dados apresentados resultam de um questionário com a participação dos docentes do Instituto Federal do Espírito Santo, campus Cachoeiro de Itapemirim, Espírito Santo, Brasil, onde foi possível compreender a sua percepção sobre o trabalho docente e refletir sobre a importância da formação continuada e da prática reflexiva. Palavras-chave: Formação de Professores. Formação Continuada. Educação Profissional. THE TEACHERS'  PERCEPTIONS OF THE TECHNICAL AND TECHNOLOGICAL COURSES ABOUT CONTINUOUS TRAINING Abstract: The concerning about the pedagogical formation of teachers, mainly those who are working in Technical and Professional courses, show the distance between pedagogical and specific formation. The formation of teachers has given rise forums for discussion which concern the development of a high quality formation which can also integrate a didactical- pedagogical preparation guided by the needs of teachers, whether in initial or continual level of formation.  This study presents a reflection on what to be a teacher is like. It is performed from the reflective perspective bringing together characteristics of theoretical and pedagogical knowledge of every individual who teaches, this way contributing with the teaching-learning process. The data presented are the result of a questionnaire with the teachers’ participation of the Federal Institute Espírito Santo, campus Cachoeiro de Itapemirim, it was possible to register the teachers perceptions in teaching activity and to reflect on the importance continued education and reflective teaching practice. Keywords: Teachers’ training. In-service training. Professional education.
Monitoria acadêmica nos cursos de Licenciatura em Matemática
Authors: Ferreira Marine Lisboa Alves , Boff Daiane Scopel
Published: August 2019

Resumo: O presente artigo apresenta aspectos que circundam a monitoria acadêmica enquanto atividade de iniciação à prática docente nos cursos presenciais de Licenciatura em Matemática ofertados nas Instituições de Ensino Superior (IES) presentes na Serra Gaúcha. Para tal, discute-se a formação de professores de matemática e a mediação permanente de suas vivências em sua constituição enquanto professor, partindo do que a legislação e alguns autores explicitam acerca destas atividades. Utilizou-se como metodologia o estudo de caso, com entrevistas estruturadas e questões abertas. Foram entrevistados coordenadores dos cursos de Licenciatura em Matemática, orientadores de projetos e estudantes que exercem a função de monitor. Foi possível identificar e mapear o perfil dos projetos que possuem como variável a atividade de monitoria, bem como explicitar suas características, atribuições comuns aos monitores e o entendimento dos participantes em relação às atividades de monitoria. Ainda, constatou-se que estas atividades se dão de maneira bastante semelhante, tanto em diferentes projetos, quanto em diferentes IES e que vêm atingindo os objetivos intentos à sua criação. Palavras-chave: Iniciação à docência. Licenciatura em Matemática. Monitorias acadêmicas. MONITORING IN ACADEMIC DEGREE COURSES IN MATHEMATICS Abstract: This article presents aspects that surround the academic monitoring as initiation activity to the teaching practice in the classroom courses of Degree in Mathematics offered in Higher Education Institutions (HEIs) in the Serra Gaúcha. To this end, we discuss the training of mathematics teachers and the permanent monitoring of their experiences in their constitution as a teacher, starting from the legislation and some authors explain about these activities. It was used as the case study methodology, with structured interviews and open questions. Coordinators were interviewed of Degree courses in mathematics, guiding projects and students engaged in the monitor function. It was possible to identify and map the profile of projects that have as variable monitoring activity and explain its characteristics, common tasks to monitor and understanding of participants in relation to monitoring activities. Still, it was found that these activities take place in much the same way, both in different projects and in different IES and which have afflicted the thoughts goals to its creation Keywords: Initiation to teaching. Degree in Mathematics. Monitors academic.
Desvendando a pequena via láctea: em busca de indícios de vida
Authors: Puhl Cassiano Scott
Published: August 2019

Resumo: O artigo relata uma sequência didática utilizada para motivar e desenvolver a aprendizagem sobre notação científica. Este estudo desenvolveu-se a partir de uma indagação realizada em uma aula: “Existe vida em outros planetas?”. Esse problema motivou os estudantes a pesquisarem informações sobre os planetas do Sistema Solar, o que resultou encontrar números expressos em notação científica. A criação de modelos do planeta do Sistema Solar auxiliou na visualização e comparação entre as dimensões dos planetas. Os planetas foram construídos respeitando uma escala de um centímetro para mil quilômetros. O levantamento de dados realizado com os estudantes das séries finais do Ensino Fundamental mostrou que os estudantes requerem ampliar seus conhecimentos sobre o Sistema Solar, como também, que a maioria dos estudantes acredita na existência de vida em outro planeta. Porém, em relação à vida inteligente, a maioria acredita na inexistência. Os resultados da sequência didática foram positivos, onde todos os estudantes participaram ativamente e desenvolveram os textos informativos, como os modelos dos planetas. Finalizando, a apresentação na feira municipal foi um dos estandes mais visitados que despertou a curiosidade de diversos visitantes. A partir desta sequência didática, o estudante tem possibilidades de interagir com o conhecimento de uma forma ativa e colaborativa, visando à aprendizagem significativa dos conceitos explorados. Palavras-chave: Notação Científica. Escala. Planetas do Sistema Solar. Interdisciplinaridade. UNVEILING THE LITTLE MILKY WAY: THE SEARCH FOR EVIDENCE OF LIFE Abstract: The article reports a didactic sequence used to motivate and develop learning about scientific notation. This study grew out of an inquiry held in a lecture: "Is there life on other planets?". This problem has motivated students to search for information about the planets of the solar system, which resulted in finding numbers expressed in scientific notation. The creation of the solar system planet models aided visualization and comparison of the sizes of the planets. The planets were built respecting a scale of one centimeter to one thousand kilometers. The data survey with students of final grades of an elementary school showed that students require to expand their knowledge about the solar system, as well, that most students believe in the existence of life on another planet. However, for intelligent life, most believe in the absence of it. The results of the didactic sequence were successful where all the students actively participated and developed informational texts, such as the models of the planets. Finally, the presentation at the county fair was one of the most visited booths that aroused the curiosity of many visitors. In this didactic sequence, the student is likely to interact with knowledge, in an active and collaborative way, aimed at a meaningful learning of the concepts explored. Keywords: Scientific Notation. Scale. Planets of the Solar System. Interdisciplinarity.
Elaboração de um repositório para a disponibilização de objetos de aprendizagem com foco nos anos iniciais do ensino fundamental
Authors: Tavares Mara Rosane Noble , Bertagnolli Silvia De Castro , Soares Ramos do Amaral Josiane Carolina
Published: August 2019

Resumo. As tecnologias são, atualmente, os principais instrumentos de modernização tecnológica da Rede Estadual de Ensino do Rio Grande do Sul.  As TICs aliadas à educação contribuem, cada vez mais, para o processo de ensinar/aprender. Os estudos recentes de muitos pesquisadores apontam para a relevância do problema: as TICs oferecem para professores e alunos oportunidades de simulação e perspectivas de intervenção na realidade partindo das experiências de sala de aula. O presente artigo relata a pesquisa documental realizada para mapear a oferta de Objetos de Aprendizagem do Banco Internacional de Objetos Educacionais, disponível para os Anos Iniciais. A partir dos dados coletados na pesquisa e das experiências em Formação de Professores realizadas no Núcleo de Tecnologia Educacional Estadual da 1ª Coordenadoria Regional de Educação (NTE/1ª CRE), propõe a construção de um repositório colaborativo, organizado por temas, para auxiliar os professores na escolha e uso do objeto de aprendizagem mais indicado para sua proposta pedagógica. Palavras-chave: Objetos de Aprendizagem. Repositório. Aprendizagem. ELABORATION OF A REPOSITORY FOR LEARNING OBJECTS AVAILABLE WITH FOCUS ON EARLY YEARS OF BASIC EDUCATION Abstract. Technologies are currently the main instruments of the technological modernization of Rio Grande do Sul public education system. TIC's applied to Education contribute, increasingly, to the process of teaching/learning. Recent studies of many researchers point to the importance of the problem: the TIC's offer teachers and students opportunities of simulation and intervention prospects from reality starting from the classroom experiences. This article reports the documentary survey to map the supply of Learning Objects from the International Bank of Educational Objects, available for the Early Years of Elementary School. From the data collected in the research and experiences in teacher training held in State Educational Technology Center of the 1st Regional Coordination of Education (NTE/1st CRE), proposes building a collaborative repository, sorted by themes, to help teachers in choosing and using the Learning Object most appropriate for his teaching proposal/learning. Keywords: Learning Objects. Repository. Learning.
Literatura e outros conhecimentos
Authors: Magri Dirceu , Gonçalves Gracia Regina
Published: August 2019

Editorial: não apresenta resumo.
Machado de Assis: a crônica e a seleção da notícia
Authors: Magri Dirceu
Published: August 2019

RESUMO: Este estudo visa percorrer o fazer literário de Machado de Assis nas crônicas, da seleção da notícia à adaptação aos percalços da imprensa, haja vista o cronista ter vivenciado em plenitude o instante híbrido que marca a passagem da lentidão do livro para a velocidade da imprensa. Nesse período o jornal desenha uma nova forma, adequa-se ao fragmentário da diagramação da página, restringe o espaço e imprime noção de agilidade. A estas alterações subscreve-se um novo estilo de escrita que, embora contaminado pelo vestígio da ficção, irá suscitar movimento cada vez mais rápido, em resposta a um espírito que não mais se habitua à lentidão livresca e, aos poucos, ganha apreço pela velocidade contemporânea, feito o bonde, tão presente em suas crônicas.

PALAVRAS-CHAVE: Crônica, notícia, leitor, distanciamento, dúvida, ironia.

________________________________________ 

ABSTRACT: This study aims to explore the Machado de Assis’ literary composition in the chronicles from the news selection to adaptation to the mishaps of the press, as he experienced in fullness the hybrid moment that marks the passage from the slowness of the book to the speed of the press. In this period, the paper draws a new way, suits the fragmentary diagramming, restricts the space and prints notion of agility. These changes subscribes a new style of writing that, although contaminated by traces of fiction, will give rise to a faster and faster movement, in response to a spirit that no longer gets used to the bookish slowness and gradually gains appreciation for contemporary speed, as the tram, so present in his chronicles.

KEYWORDS: Chronicle, news, reader, estrangement, doubt, irony.
Literatura e construção de uma brasilidade pela culinária (1840-1960)
Authors: Feliciano Paula de Oliveira
Published: August 2019

Em contraponto às cozinhas europeias e suas estruturas de compreensão eruditas, a construção identitária da cozinha brasileira é objeto recente de estudos acadêmicos mais aprofundados. A literatura e as artes do final do século XIX e meados dos XX contribuíram também para moldar, cristalizar e comunicar a formação de uma mitológica história cultural brasileira. Desta forma, tais cristalizações se articularam e se materializaram em diversos simbolismos e expressões que compõem a cultura material e imaterial, incluindo a cozinha. Assim, o objetivo deste artigo é mostrar informações sobre a literatura culinária dedicada a apresentar a cozinha brasileira no período de 1840 e 1960. Em seguida, visa à descrição de evidências do interesse de Mário de Andrade pela construção de uma brasilidade pela culinária. A metodologia incluiu levantamento bibliográfico e pesquisa de campo no acervo de Mário de Andrade existente no Instituto de Estudos Brasileiros da Universidade de São Paulo (IEB-USP).
Transposição intermidiática: diálogo entre literatura e cinema
Authors: Stringini da Rosa Joseana
Published: August 2019

O presente trabalho propõe uma análise da graphic novel Le bleu est une couleur chaude (2010), de Julie Maroh e do filme La Vie d’Adèle (2013), dirigido por Abdellatif Kechiche, que, no Brasil, recebeu o título de Azul é a cor mais quente. O objetivo é analisar a questão da intermidialidade entre literatura e cinema, bem como dar ênfase para o processo de adaptação, visto que o filme é criado a partir do romance gráfico. Pretende-se também observar a construção da transposição das imagens impressas e a adaptação de uma mídia para outra, do livro para a tela, em seus contrastes e suas similaridades. Para a discussão, parte-se de pressupostos teóricos que possam dar conta da Teoria da Adaptação e da Literatura Comparada, trazendo autores como Linda Hutcheon, Robert Stam, Jeanne-Marie Clerc e Umberto Eco.
Ânsia de ti
Authors: De Assis Laura
Published: August 2019

Poema: não apresenta resumo.
Galáxia Stelar
Authors: De Assis Laura
Published: August 2019

Poema: não apresenta resumo.
Effects of Compression Algorithms and Identification of Cancer cell using CT Coronel View Lung Image
Authors:   Electronics and Instrumentation, Sathyabama Institute of Science and Technology, India., R Pandian , S Lalitha Kumari ,   Electronics and Instrumentation ,Sathyabama Institute of Science and Technology,India.
Published: August 2019

Modern radiology techniques provide crucial medical information for radiologists to diagnose diseases and determine appropriate treatments. Hence dealing with medical image compression needs to compromise on good perceptual quality (i.e. diagnostically lossless) and high compression rate. The objective also includes finding out an optimum algorithm for medical image compression algorithm. The objective is also focused towards the selection of the developed image compression algorithm, which do not change the characterization behavior of the image.
Application of Flower Pollination Algorithm for Optimally Tuning Zeigler Nichols Parameters for PID Controller to Enhance Transient Stability through SVC
Authors:   Associate Professor, Department of Electrical and Electronics Engineering, Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar (Odisha), India., Choudhury Subhashree , Rout Prakriti ,   Department of Electrical and Electronics Engineering, Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar (Odisha), India., Satpathy Anshuman ,   Department of Electrical and Electronics Engineering, Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar (Odisha), India., Dash Tara Prasanna ,   Department of Electrical and Electronics Engineering, Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar (Odisha), India.
Published: August 2019

With the evolution of electrical networks, the complexity and non linearity of modern power systems has enhanced exponentially. In order to reduce these potentially harmful oscillations, power system stabilizers (PSS) are introduced in generators of modern power systems. The PSS brings the system back to a stable and balanced state and re-establishes the pre-fault performance of the system after removal of disturbance and restoration of line. However utilization of PSS in certain cases of increased transmission line loading and other significant faults is not very effective and is rather time consuming. These days to acquire better control and quality of power, FACTS devices are being commonly used in large power systems. When SVC, a versatile FACTS device is used simultaneously with PSS, there is not only improvement in power transfer capability and controllability but also a distinct enhancement in power system stability. In order to increase the performance of the conventional PID controller of the PSS, it is tuned with a very simple and quick tuning method called Zeigler Nichols (ZN) which provides very fast elimination to disturbances in power system. However the conventional and ZN based PID controllers are confined only to linear control of power system. To further enhance the dynamic tuning process in order to obtain much faster and better transient as well as dynamic stability, a very adaptable and robust nature inspired technique of Flower Pollination Algorithm (FPA) is used to tune the ZN based PID controller. To realise the system transient stability for the conventional and proposed method, root locus and total harmonic distortion techniques have been adopted. The results ultimately reveal the efficacy and productiveness of FP based ZN- PID in successfully damping out inter area oscillations thus reducing the harmonics and improving overall stability in power systems as compared to other tuning methods.
Performance Evaluation of Sc-IDMA & Of DM- IDMA in Impulsive Media
Authors:   A PhD Research scholar in Dept. of ECE in Dr. A P J Abdul Kalam Technical University, Luck now, India,, Tripathi Abhishek , Sriwas S K ,   Dept. of Electronics and Communication Engineering, BIET, Jhansi, UP, India., Singh Dr. R.K. ,   Dept. of Electronics Engineering, Kamla Nehru Institute of Technology, Sultanpur, UP, India.
Published: August 2019

In this paper, we analyzed the working phenomenon of Single and Multi carrier IDMA in Non Gaussian Impulsive medium and also compared their relative performances. The performance comparison is evaluated under the following constraints; by varying the iteration count, impulsive constant, control parameters and no. of users etc. The multi user detection for these schemes can be realized with complexity (per user) strictly independent of number of users. The simulation result concludes that multicarrier IDMA outperforms the single carrier IDMA in impulsive non Gaussian channel as a medium.
Optimum Haul Road Track Selection on Open Pit Coal Mine By Fuzzy Analytical Hierarchy Process (FAHP) Implementation
Authors:   Researcher and Lecturer of Civil Engineering, Department, Mercu Buana University, Jakarta, Indonesia, Husin Albert Eddy , Soehari Tjiptogoro Dinarjo ,   Researcher and Lecturer of Civil Engineering Department, Mercu Buana University, Jakarta, Indonesia, Zulfiqar  ,   Master Program of Civil Engineering, Mercu Buana University, Jakarta, Indonesia., Prabowo Yudi Setio ,   Master Program of Civil Engineering, Mercu Buana University, Jakarta, Indonesia.
Published: August 2019

The optimal design of roads in mines is very crucial to the success of the mining operation. However, the transportation roads of mines are often inadequately designed and rarely properly maintained in order to save cost. In order to acquire the optimum track of road for the open pit coal mine, analysis of the topography factor, land usage, environment, and geology are needed on the basic engineering design phase. Considering the amount of overlapping and influencing criteria, the method of Fuzzy Analytic Hierarchy Process (Fuzzy AHP) is used. FAHP is the combination of AHP with the mathematical method of fuzzy. The difference between FAHP and AHP is the implementation of the level of importance in the paired comparison of the comparison matrices, which uses Triangular Fuzzy Numbers (TFN). Following the geometric planning of the open pit coal mine haul road, several track alternatives are considered. Fuzzy AHP was used to select the final alternative that should be implemented. The criteria for the fuzzy AHP operation were acquired through expert opinions. The resulting criteria and scores were processed, with the final result of a feasibility ranking of each track alternative. Fuzzy AHP were proven to be very effective to be used in determining the optimum haul road track alternative for an open pit coal mine.
Evolution of New Integrated Haze Removal Algorithm Based on Haze Line
Authors:   Research Scholar , Mewar University, Chittorgadh, Rajasthan, India, Meenu  , Kumar S andeep ,   Research Scholar , Bhagwant University, Ajmer , Rajasthan, India, Panchal Dr.V.K. ,   Founder President, Computational Intelligence Research Group India, Kumar Dr. Rajeev ,   Associate Professor and Sr. Member of IEEE Collage of Computer Science and Information Technology TMU , Moradabad , India
Published: August 2019

Haze is a standout amongst the most essential factor that debases the outside pictures. Picture corruption relies upon the separation of the Object from the camera as the separation increment from the camera of the scene point haze additionally increases. This paper presents a haze removal technique which is relies on the Haze-line prior that is recently introduced. This prior is based on the observation that the pixel values of a hazy image can be modeled as lines in RGB space that intersect at the air- light proposed approach is known as haze line. In this paper we proposed Post processing CBMG (Contrast, Brightness, Midtone and Gama adjustment) followed by four stages: clustering the pixel into haze line, Estimation of Transmission map, Regularization, Dehazing, This method is implement by observation of two basic things first pixels in a given group are regularly non local . Second pictures with improved perceivability (or sunny morning picture) have more differentiation than the pictures stopped by terrible climate. Experimental result demonstrate that our method remove haze layer and provide qualitative result.
Performance Analysis of MSB Based Iris Recognition Using Hybrid Features Extraction Technique
Authors:   Department of Electronics and Communication Engineering, S. G. Balekundri Institute of Technology, Belagavi, Karnataka, India., Harakannanavar Sunil Swamilingappa , C R Prashanth ,   Department of Telecommunication Engineering, Dr. Ambedkar Institute of Technology, Bangalore, Karnataka, India., K B Raja ,   Department of Electronics and Communication Engineering, University Visvesvaraya College of Engineering, Bangalore, Karnataka, India.
Published: August 2019

In the modern days, biometric identification is more promising and reliable to verify the human identity. Biometric refers to a science for analyzing the human characteristics such as physiological or behavioral patterns. Iris is a physiological trait, which is unique among all the biometric traits to recognize an individual effectively. In this paper, MSB based iris recognition based on Discrete Wavelet Transform, Independent Component Analysis and Binariezed Statistical Image Features is proposed. The left and right region is extracted from eye images using morphological operations. Binary split is performed to divide the eight-bit binary of every pixel into four bit Least Significant Bits and four bit Most Significant Bits. DWT is applied on four bit MSB to extract the iris features. Then ICA is applied on approximate sub band to extract the significant details of iris. The obtained features are then applied on BSIF to obtain the enhanced response with final features. Finally features produced are matched with the test features using Euclidean distance classifier on CASIA database. The experiments are performed on proposed iris model using MATLAB 7.0 software considering various combinations of Person inside Database (PID’s) and Person outside Database (POD’s) to evaluate the recognition accuracy of the proposed iris model.
Thermodynamic Analysis of Fe3O4Nanofluid Flowing Through A Circular Tube
Authors:   Assistant Professor at department of Mechanical engineering, S R Engineering College, Warangal, Telangana, India., N Praveena Devi , Rao Ch Srinivasa ,   Professor at department of Mechanical Engineering, Andhra University, Visakhapatnam, Andhra Pradesh, India., Kumar K Kiran ,   Associate Professor at department of Mechanical engineering, NIT Warangal,Warangal,Telangana,India.
Published: August 2019

Present work is an experimental study of entropy generation of Fe3O4-water nanofluid flowing through a circular tube. Flow is maintained in the turbulent region and tube is exposed to constant heat flux along the length. Experiments are conducted to study the entropy generation rate for different conditions such as particle volume concentrations varying from 1% to 6% and also for the different Reynolds numbers varying from 6000 to 22000. Measured data from experimentation is taken as input to calculate thermal entropy and frictional entropy generation separately. Based on these thermal entropy and frictional entropy generation total entropy generation and Bejan number are calculated and results are analyzed. Experimentally, it is proved that the changes in the thermal and frictional entropy generations are converse, such a way that, as particle concentration increases entropy generation due to heat transfer decreases whereas entropy generation due to friction increases. Finally experimental results reveal that there exits an optimum particle volume concentration where the total entropy generation is minimal. The same result has also appended by calculating the Bejan number.
Performance Analysis of Iris Recognition Using Multi Stage Wavelet Transform Decomposition and Bicubic Interpolation Technique
Authors:   Department of Electronics and Communication Engineering, S. G. Balekundri Institute of Technology, Belagavi, Karnataka, India, Harakannanavar Sunil Swamilingappa , C R Prashanth ,   Department of Telecommunication Engineering, Dr. Ambedkar Institute of Technology, Bangalore, Karnataka, India., K B Raja ,   Department of Electronics and Communication Engineering, University Visvesvaraya College of Engineering, Bangalore, Karnataka, India.
Published: August 2019

Biometric identification is highly reliable for human identification. Biometric is a field of science used for analyzing the physiological or behavioural characteristics of human. Iris features are unique, stable and can be visible from longer distances. It uses mathematical pattern-recognition techniques on video images of one or both iris of an individual's. Compared to other biometric traits, iris is more challenging and highly secured tool to identify the individual. In this paper iris recognition based on the combination of Discrete Wavelet Transform (DWT), Inverse Discrete Wavelet Transform (IDWT), Independent Component Analysis (ICA) and Binariezed Statistical Image Features (BSIF) are adopted to generate the hybrid iris features. The first level and second level DWT are employed in order to extract the more unique features of the iris images. The concept of bicubic interpolation is applied on high frequency coefficients generated by first level decomposition of DWT to produce new set of sub-bands. The approximation band generated by second level decomposition of DWT and new set of sub-bands produced by second level decomposition of DWT are applied on IDWT to reconstruct the coefficients. The ICA 5x5 filters and BSIF are adopted for selecting the appropriate images to extract the final features. Finally based on the matching score between the database image and test image the genuine and imposters are identified. Using CASIA database, training and testing of the features is performed and performance is evaluated considering different combinations of Person inside Database (PID) and Person outside Database (POD). Index Terms: Biometrics, Discrete
Evaluating Phishing Website Detection On Client Side
Authors:   Assistat Professor/Department of Computer Science and Engineering, K. Ramakrishnan College of Engineering, Samayapuram, Trichy, Tamilnadu, India., Prabu Mr. S. , Sumathi Mrs. M. ,   Assistat Professor/Department of Computer Science and Engineering, K. Ramakrishnan College of Engineering, Samayapuram, Trichy, Tamilnadu, India.
Published: August 2019

In a web based application phishing attack plays a vital role. To find a solution for this problem, lots of work is carried out over a year, but still now no solution is find out for this problem. The existing solution, suffers from a few drawbacks such as to count potential to compromise consumer privacy. That is the reason for difficulty of detecting phishing attacks in the websites. In addition to this problem, the website content is changed dynamically, and confidence depends on the features of specific provisions of data. To solve these issues, a new direction for the detection of phishing attacks in web-pages is approached here. The proposed system, inherent the phishing limits starting from the constraints they faced while built a web-page. subsequently the implementation of our approach includes, off-the-hook- focused on extraordinary precision and brand-independence and semantic individuality. Here the off-the-hook is constructed from the fully-client-side browser add-on, which describes the user privacy. Additionally, off-the-hook focused on the target website and the phishing webpage is attempting to imitate and comprises this objective with warning. The proposed method is evaluated our genetic algorithm in below user studies.
Modified Firefly Algorithm for Vector Quantization Codebook Design in Image Compression
Authors:   Dept. of Computer Science and Engineering, Pondicherry Engineering College, Puducherry., Preethi Ms. D. , Loganathan Dr. D. ,   Professor, Dept. of Computer Science and Engineering, Pondicherry Engineering College, Puducherry.
Published: August 2019

In the recent days, the importance of image compression techniques is exponentially increased due to the generation of massive amount of data which needs to be stored or transmitted. Numerous approaches have been presented for effective image compression by the principle of representing images in its compact form through the avoidance of unnecessary pixels. Vector quantization (VA) is an effective method in image compression and the construction of quantization table is an important process is an important task. The compression performance and the quality of reconstructed data are based on the quantization table, which is actually a matrix of 64 integers. The quantization table selection is a complex combinatorial problem which can be resolved by the evolutionary algorithms (EA). Presently, EA became famous to resolve the real world problems in a reasonable amount of time. This chapter introduces Firefly (FF) with Teaching and learning based optimization (TLBO) algorithm termed as FF-TLBO algorithm for the selection of quantization table and introduces Firefly with Tumbling algorithm termed as FF-Tumbling algorithm for the selection of search space. As the FF algorithm faces a problem when brighter FFs are insignificant, the TLBO algorithm is integrated to it to resolve the problem and Tumbling efficiently train the algorithm to explore all direction in the solution space. This algorithm determines the best fit value for every bock as local best and best fitness value for the entire image is considered as global best. When these values are found by FF algorithm, compression process takes place by efficient image compression algorithm like Run Length Encoding and Huffman coding. The proposed FF-TLBO and FF-Tumbling algorithm is evaluated by comparing its results with existing FF algorithm using a same set of benchmark images in terms of Mean Square Error (MSE), Peak Signal to Noise Ratio (PSNR), Signal to Noise Ratio (SNR). The obtained results ensure the superior performance of FF-TLBO and FF-Tumbling algorithm over FF algorithm and make it highly useful for real time applications.
Microstructure and Microhardness of ZrO2 Reinforced PM 316L Austenitic Stainless Steel Composites Sintered in Ambient and Argon Atmosphere
Authors:   Department of Mechanical Engineering, Wolaita Sodo University, Wolaita Sodo, Ethiopia., Patel Mahaboob , Vaidyanathan R. Muthu ,   Department of Mechanical Engineering, Wolaita Sodo University, Wolaita Sodo, Ethiopia., Sivaraman N. ,   Department of Mechanical Engineering, Wolaita Sodo University, Wolaita Sodo, Ethiopia., Alemayehu Tsegaye ,   Department of Mechanical Engineering, Wolaita Sodo University, Wolaita Sodo, Ethiopia., Markos Mebratu ,   Department of Mechanical Engineering, Wolaita Sodo University, Wolaita Sodo, Ethiopia.
Published: August 2019

The present study examines the microstructure and microhardness of zirconia (ZrO2) reinforced PM 316L austenitic stainless steel matrix composites. ZrO2 was added in a proportion of 1 wt% to 3 wt%. Powders were compacted into a disc of 11mm diameter and 2mm thick at 70kN. Compacts were sintered in an ambient and argon atmosphere at 1250oC for 30 minutes. Sintered compacts were then analyzed for microhardness using Vickers hardness testing machine, and microstructure was examined using a scanning electron microscope. The study revealed that the reinforcement of ZrO2 significantly enhanced the microhardness of PM 316L SS matrix composites with a microstructure consisting of irregular porosity and zirconia encapsulating the 316L SS particles.