O computador no ensino de lígnua inglesa no CEFET/RN

The present study has as goal to analyze the aplicability of the computational technology as mediator in the english-speaking teaching in the Centro Federal de Educação Tecnológica do Rio Grande do Norte-CEFET/RN. The object of study was centered in the use of the computer incorporated in the teaching of English by four institution groups. The research was ruled metodologically in the study of case, adopting a qualitative and quantitative boarding of interpretative-reflexive mark. We support ourselves on a bibliographical literature revision that cares of the use of the computational technology matter into the class-room, aiming an education new practice, regarding the current reality conceptions in what we live in the technological education. We also use a referencial for a pedagogical action, trying to offer subsidies for a practice that provides the knowledges generation through the interaction, aiming a subject reflexive and critical education. For materialization of this study, we used esrutuctured action, as interviews for the teachers and students, besides the observations of the dayly in class-room, in order to get the necessary datas for analysis. During this study, we oserved that the use of the computer, while pedagogical support instrument in the english-speaking teaching, has acted like mediator of the teaching-learning process. The results demonstrate use of the computer use has been each more a practice adopted by other institution languages teachers. The conclusions confirm the hypothesis showed at the beginning of the work and evidence that the teachers are warden of forming thinking, reflexive and critical subjects. For that, they need to be prepared to face situations in which they can take the pedagogical practice to tune with the technological advances, consequently providing an effective technological education

Formação de professores, saberes, reflexividade e apropriação da cultura digital no Projeto Um Computador por Aluno (UCA)

This study investigates teacher training and cognitive practice of teachers in a Basic Education school that adopted the Project One Computer per Student (OCS) in their school routine. Its relevance consists in provide directions for the continuation of training activities on the Project and guide the teachers with their pedagogical practices using the laptop model one to one. The thesis defended is that the educator formation for social using of digital media (specially the laptops from the Project UCA) gives space to establish new sociotechnical relationships, of new social and professionals practices, new identitary components and a process of reflexivity and knowledge reconstruction to teach. We reaffirm the importance of reflexivity and appropriation of digital culture for the better development of teaching practice using the Information and Communication Technologies (ICTs), giving focus to the aspects of social and professional use of the technology. The study is part of the qualitative aspect and is a procedural tracking based on principles of ethnographic research. As procedures and methodological tools, were used: intensive observation of school environments, documental analysis, focal group, semi-structured questionnaires and semi-structured individual interviews. The research was held in a public school in the city of Parnamirim - RN. The subject sample relates to 17 teachers, coming from the elementary school I and II, Youth and Adult Education and High School, who went through the process of training UCA and having entered the laptops in their teaching. The research corpus is structured based on the messages built into the process of data collection and is analyzed based on principles of Content Analysis, specified by Laurence Bardin (2011). Was taken as theoretical reference studies by Tardif (2000; 2011), Pimenta (2009), Gorz (2004, 2005), Giddens (1991), Dewey, J. (1916), Boudieu (1994; 1999), Freire (1996; 2005), among others. The analysis indicates a process of reconstruction / revision of knowledge to teach and work in digital culture, being these knowledges guided by the experience of the subjects investigated. The reconstructed knowledges will be revealed from a categorization process. The following groups of knowledges: "technical knowledges", "didactic-methodological knowledges and knowledges of professionalization" were built on the assumption of ownership of digital culture in the educational context. The analysis confirms the appearance of new ways of sociability when acquiring other forms of acting and thinking ICTs, despite the environment adverse to the reflexivity shared among the teachers. Also reveals, based on the ownership concept present on the data analysis, the construction of meanings of belonging and transformation of individuals into social routes from the interweaving of the teaching practice with the digital culture. Emphasizes, finally, the importance of a training for use of ICTs that exceeds the instrumentation, in other words, what we call "technical knowledges", but taking on its structural basis the shared reflection, the opening for the ressignificance (new meaning) and reconstruction of new knowledges and practices and that really allows, to the teacher, the living of an experience capable of providing socio-technical transformations of their relationships

Um sistema inteligente de classificação de sinais de EEG para Interface Cérebro-Computador

The Brain-Computer Interfaces (BCI) have as main purpose to establish a communication path with the central nervous system (CNS) independently from the standard pathway (nervous, muscles), aiming to control a device. The main objective of the current research is to develop an off-line BCI that separates the different EEG patterns resulting from strictly mental tasks performed by an experimental subject, comparing the effectiveness of different signal-preprocessing approaches. We also tested different classification approaches: all versus all, one versus one and a hierarchic classification approach. No preprocessing techniques were found able to improve the system performance. Furthermore, the hierarchic approach proved to be capable to produce results above the expected by literature

Análise comparativa de traduções do Cântico dos Cânticos

Observam-se especialmente as divergências entre as duas, no que diz respeito ao erotismo presente no poema, e analisando as suas prováveis razões discursivas. Não se visa aqui a produção de uma nova tradução, mas a comparação e o comentário das escolhas tradutórias em determinados excertos das obras selecionadas. A argumentação desenvolvese através dos seguintes encaminhamentos: após a apresentação do objeto de estudo com o debate que sempre o acompanha acerca das polêmicas de datação e autoria, passa-se à exposição do problema do qual se ocupa a hipótese, assim como os objetivos e os parâmetros metodológicos que regeram a elaboração desta dissertação. Consecutivamente, elencam-se os pressupostos teóricos que emolduram as análises propostas, aborda-se também a sexualidade segundo a religião contemporânea (por se tratar de um livro ao qual se agregou valor religioso) nas instituições que adotaram o Cântico dos Cânticos, a saber: o judaísmo e o cristianismo católico e protestante, assim como o processo possivelmente efetuado durante essa adoção quanto ao enviesamento interpretativo e à atribuição autoral: visa-se compreender as razões da incongruência causada pelo sexo que permeia o texto em questão relativamente à religiosidade contemporânea, e especula-se sobre a sua canonização, considerando como esse desencaixe pode ter mudado o curso da sua exegese tradicional para a alegoria que se tornou a sua leitura majoritária, inclusive engendrando a atribuição tradicional da sua suposta origem. Somente então se dá início à análise comparativa das duas traduções, a fim de se constatar a provável existência dum viés discursivo transparecente das formas como cada uma destas obras verteu as porções do texto-fonte, para o português, que continham marcas de erotismo, observando se respeitaram ou não as leituras tradicionais que insuflaram no texto o seu pendor alegórico de caráter religioso

Interfaces cérebro-computador: estudo, design e desenvolvimento do jogo AdmiralMind Battleship

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior

Utilizando a porta paralela para controle remoto de um dispositivo

VALENTIM, R. A. M.; NOGUEIRA, I. A.;ROCHA NETO, A. F. Utilizando a porta paralela para controle remoto de um dispositivo. Revista da FARN, Natal, v. 2, p. 103-114, 2002.

Uma arquitetura distribuída de hardware e software para controle de um robô móvel autônomo

BRITTO, Ricardo S.; MEDEIROS, Adelardo A. D.; ALSINA, Pablo J. Uma arquitetura distribuída de hardware e software para controle de um robô móvel autônomo. In: SIMPÓSIO BRASILEIRO DE AUTOMAÇÃO INTELIGENTE,8., 2007, Florianópolis. Anais... Florianópolis: SBAI, 2007.

Percepções das relações entre trabalho remunerado e trabalho voluntário: um estudo com voluntários da pastoral da criança

O trabalho é uma atividade de fundamental importância na vida do homem porque é uma condição essencial para sua existência social. Ao longo do tempo o trabalho teve diversas definições e significados, mas na atualidade pode-se dizer que ele sintetiza e satisfaz três necessidades essenciais da natureza humana, a necessidade de subsistir (função econômica), a de criar (função psicológica) e a de colaborar (função social). Nesse contexto a presente pesquisa objetivou compreender as relações estabelecidas entre os trabalhos remunerado e voluntário, na perspectiva de identificar os aspectos convergentes e divergentes dessas atividades, que possam explicar a permanência dos sujeitos nas duas dimensões laborais e ao mesmo tempo entender qual a importância e reflexo que ambas as atividades têm na vida dos entrevistados. Como instrumento de coleta de dados foi utilizado a entrevista semi-estruturada do tipo focalizada. Foram entrevistados nove líderes da Pastoral da Criança no mês de dezembro de 2009 na cidade de Natal/RN. Os dados foram interpretados à luz da análise de conteúdo, proposta por Bardin. Os principais resultados encontrados quanto aos aspectos convergentes do trabalho remunerado foram a importância do salário para prover a sobrevivência, convivência com as pessoas e troca de experiência além do valor do trabalho para manter a dignidade do homem. Os pontos divergentes enquadraram: trabalho como obrigação, competitividade no ambiente laboral e baixa remuneração. Quanto ao trabalho voluntário, os aspectos convergentes emergidos foram a realização pessoal, a solidariedade, o envolvimento com a causa da Pastoral, valorização das coisas que possui diante de outras realidades mais difíceis, reconhecimento e prestígio dos voluntários pelas famílias assistidas, e por fim a visão do trabalho voluntário como complementação da vida. Com relação aos pontos divergentes foram citados a falta de comprometimento de alguns voluntários, bem como a necessidade de adesão de novas pessoas à este tipo de trabalho, limitação de querer fazer mais e não poder, exigências do público assistido e imagem distorcida da missão da Pastoral da Criança por parte das famílias, além da constatação dos níveis de pobreza e injustiça social que geram desigualdades as mais diversas. Sobre os aspectos marcantes para a permanência dos sujeitos nas duas esferas de trabalho, o amor, a dedicação, a realização pessoal foram os motivos mais apontados. Nas relações entre os dois trabalhos, as transferências de valores aparecem como recíprocas e naturais, sendo aproveitados para estabelecê-las o que cada atividade laboral apresenta de melhor. Conclui-se que o altruísmo, a solidariedade, a generosidade, o acolhimento, a paz espiritual, o bem-estar e sobretudo o amor, são sentimentos que sustentam e confortam o homem, cujas relações aparecem de forma expressiva nas falas dos entrevistados e permeando todo o decorrer da pesquisa.

Implementação da rotina de unfolding para determinação de distribuição de tamanho de grãos esféricos via distribuição de interceptos lineares e de área de seção

Na unfolding method of linear intercept distributions and secction área distribution was implemented for structures with spherical grains. Although the unfolding routine depends on the grain shape, structures with spheroidal grains can also be treated by this routine. Grains of non-spheroidal shape can be treated only as approximation. A software was developed with two parts. The first part calculates the probability matrix. The second part uses this matrix and minimizes the chi-square. The results are presented with any number of size classes as required. The probability matrix was determined by means of the linear intercept and section area distributions created by computer simulation. Using curve fittings the probability matrix for spheres of any sizes could be determined. Two kinds of tests were carried out to prove the efficiency of the Technique. The theoretical tests represent ideal cases. The software was able to exactly find the proposed grain size distribution. In the second test, a structure was simulated in computer and images of its slices were used to produce the corresponding linear intercept the section area distributions. These distributions were then unfolded. This test simulates better reality. The results show deviations from the real size distribution. This deviations are caused by statistic fluctuation. The unfolding of the linear intercept distribution works perfectly, but the unfolding of section area distribution does not work due to a failure in the chi-square minimization. The minimization method uses a matrix inversion routine. The matrix generated by this procedure cannot be inverted. Other minimization method must be used

Compósitos de matriz metálica à base níquel com adição de TaC e NbC produzidos via metalurgia do pó

Carbide reinforced metallic alloys potentially improve some important mechanical properties required for the overall use of important engineering materials such as steel and nickel. Nevertheless, improved performance is achieved not only by composition enhancement but also by adequate processing techniques, such as novel sintering methods in the case of powder metallurgy. The method minimizes energy losses in addition to providing uniform heating during sintering. Thus, the general objective of this study was to evaluate the density, hardness, flexural strength, dilatometric behavior and to analyze the microstructure of metal matrix composites based nickel with addition of carbides of tantalum and / or niobium when sintered in a conventional furnace and Plasma assisted debinding and sintering (PADS). Initially, were defineds best parameters of granulation, screening and mixing procedure. After, mixtures of carbonyl Ni and 5%, 10% and 15 wt.% NbC and TaC were prepared in a Y-type mixer under wet conditions during 60 minutes. The mixtures were then dried and granulated using 1.5 wt. % paraffin diluted in hexane. Granulates were cold pressed under 600 MPa. Paraffin was then removed from the pressed pellets during a pre-sintering process carried out in a tubular furnace at 500 °C during 30 min. The heating rate was 3 ºC/min. The pellets were then sintered using either a plasma assisted reactor or a conventional resistive tubular furnace. For both methods, the heating rate was set to 8 ºC/min up to 1150 °C. The holding time was 60 minutes. The microstructure of the sintered samples was evaluated by SEM. Brinell hardness tests were also carried out. The results revealed that higher density and higher hardness values were observed in the plasma-assisted sintered samples. Hardness increased with the concentration of carbides in the Ni-matrix. The flexural strength also increased by adding the carbides. The decline was larger for the sample with addition of 5% 5% TaC and NbC. In general, compositions containing added carbide 10% showed less porous and more uniform distribution of carbides in the nickel matrix microstructural appearance. Thus, both added carbide and plasma sintering improved density, hardness, flexural strength and microstructural appearance of the composites

Compressão de Imagens Usando a Função de Peano e a Transformada Wavelet 1D

In this work, spoke about the importance of image compression for the industry, it is known that processing and image storage is always a challenge in petrobrás to optimize the storage time and store a maximum number of images and data. We present an interactive system for processing and storing images in the wavelet domain and an interface for digital image processing. The proposal is based on the Peano function and wavelet transform in 1D. The storage system aims to optimize the computational space, both for storage and for transmission of images. Being necessary to the application of the Peano function to linearize the images and the 1D wavelet transform to decompose it. These applications allow you to extract relevant information for the storage of an image with a lower computational cost and with a very small margin of error when comparing the images, original and processed, ie, there is little loss of quality when applying the processing system presented . The results obtained from the information extracted from the images are displayed in a graphical interface. It is through the graphical user interface that the user uses the files to view and analyze the results of the programs directly on the computer screen without the worry of dealing with the source code. The graphical user interface, programs for image processing via Peano Function and Wavelet Transform 1D, were developed in Java language, allowing a direct exchange of information between them and the user

Tempo livre de lazer e composição corporal de escolares do meio-oeste catarinense

The aim of this study was to investigate the relationship between free time for leisure and body composition of students in the crucial ninth year. (N = 228) of towns in the Midwest catarinense. We used the Adolescent Behavior Questionnaire of Santa Catarina (COMPAC) to assess lifestyle, considering that Active schoolchildren during the week, accumulated 300 or more minutes of moderate or vigorous physical activity (MVPA). Were used the time to 2 hours or more / day to determine the time of excessive use of TV and computer video game. To analyze body composition were used two criteria: the Body Mass Index (BMI) and sum of skinfolds (EDC). It was observed a proportion of 67.3% of girls and 68.7% of boys assets and more than 98% of students were using excessive TV time, computer and video game. In the classification by EDC, most of the boys showed great or low levels of body composition, while more than half of girls were classified at higher levels. As for BMI, most boys and girls had not overweight. Significant difference in the comparison of total minutes per week of MVPA reported between the groups, the second criterion of EDC and BMI for girls but not for BMI in boys. It is concluded that students with higher accumulation in minutes of MVPA showed better body composition indicators, but no significant difference was found when compared active groups with inactive, according to criteria used.

Inclusão digital: a inserção das tecnologias informacionais nas escolas públicas da RMNatal

This study aims to determine the influence of Digital Inclusion in school performance of students from public high school in the metropolitan area of Natal, through the use of computers in a pedagogical and Internet use.Throughout the paper we try to answer the question: The pedagogical use of computers connected to the Internet contributes to improving the academic performance of students in public schools in the RMNatal? To answer the research question, we focus on the database INEP on the infrastructure of schools and the bank rates of school performance. For both technical procedures performed to obtain the relationship between Internet and School Performance. Then the School Settings have been configured for Digital Inclusion and made crosses with the approval rates, distortion and failure. The survey results indicate that according to the classification established in: Included in School Settings, School Settings deficit, Adverse Environments School and School Settings Deleted, which has prevailed in the metropolitan area of Natal are the schools that are provided outside.

Assistência a mulher com câncer de mama em um cenro de referência no Estado da Paraíba

The assistance to women who have breast cancer is studied in a Reference Center in Paraiba and also the way this assistance is performed in a School Hospital maintained by SUS (Single Health System) is questioned. Breast cancer demands institutional organization, provision of financial, material and human resources, requiring, from the health system, effective assistance with new technologies which make it possible for the population their access to specialized medical services although it not always is able to guarantee those services nor the rights which the legislation granted them, inhibiting a proper relationship between the health professional and the patient. The theme is discussed through a transdisciplinary knowledge view and has as its theoretical referential the contribution of classical and contemporary authors from the human and social sciences and, as an empirical research strategy, the structured interview. The objectives of the research were: identify how the assistance to women with breast cancer is carried on at a Reference Center on Oncology in Campina Grande, Paraiba, identifying their difficulties and their satisfaction with the received assistance; draw up a profile of the women with breast cancer who were assisted in this Reference Center; understand their gynecological and obstetric antecedents, life styles, age group and stage of the disease when the treatment started; check their knowledge about their rights and which benefits they had received. Most women ranged between 40 and 59 years old (63%), which corresponds to the risk range of developing breast cancer. As to their occupations, 38.3% were housewives and 30.1% retired, whose family income was among those who received between less than a minimum salary and one minimum salary (58.2%). This population was mainly constituted of married women (60.2%), whose most frequent schooling was an incomplete elementary school (27.6%) and complete elementary school (24.1%), which added up to 51.6%. It was observed that the majority of the women seemed to be satisfied with the assistance received, noting that a minimum care was enough to define this satisfaction, although it is perceived that the access to the health system does not ensure the ideal attention conditions they need; it was verified that the availability of the services and the assistance itself are seen (in the local culture) as a favor and not as a right. It is also observed that only 30% of the women mentioned that they knew about their rights and the most mentioned ones were the disease assistance (13%), the medicines (13%) and the treatment (12%), which represent the most important triad to face the disease and around which the oncologic assistance most focus on. It is concluded that the condition of the users´ minimum existential of a public health unit and the condition of belonging to a lower social stratum were variables that influenced the respondents´ satisfaction in relation to the assistance received but the importance of the Reference Center for the women with breast cancer´s assistance for the whole region cannot be denied as well as the need to broaden the way the policy of the oncologic assistance in Brazil in the local realm is seen

Representações sociais, relações de gênero e programas de assistência e educação à saúde da mulher no climatério em Natal/RN

Climacteric is the name of the period of the human life that it is going from the 40 years old, approximately, until the 65 years old. Though, for besides a biological phase of the woman's life, the climacteric is an object of the social world that is rendered to different apprehensions and readings on the symbolic plan. In this study, it was looked for to know the social representations, that health' professionals acting in the programs of the climacteric and the users of those same services, build in respect of that purpose. Besides, it tried to be seen that the social hegemonic representation that guides the actions and the agents' attitudes in the practices of attendance and education for the woman's health in the climacteric in the extent of the investigated institutions. The data were collected through interviews, questionnaire, focal discussion group and direct observation. The observation field was constituted by the three institutions that develop the attendance and education for the woman's health in the climacteric phase, in the city of Natal. A gender perspective was also been adopted, sought to evidence as the cognitive structures that assure the masculine power reproduction, pronounce to the social representations to build a sense to the investigated purpose. It was verified that the social representations of the climacteric are built mainly around the semantic fields old age and disease. For the health professionals, the meaning of the simbol old age carries the marks of the indentified system of the middle class employed, but also, of the feminine habitus that guides them to have an ethical and aesthetic apprehension of their own body. The climacteric, in that way, is seen as a difficult phase , a painful event that scares . For the women attended by those professionals, the sign old age means feeling emphasis from the biological climacteric aspects, in other words, the sensations and signs that forbid the body to accomplish certain linked basic life functions. Along the whole course of this thesis, it was verified that the climacteric is a complex phenomenon that needs to be faced as such. While cultural phenomenon, it is urgent to look for means to help to combat the centrality of the professional representations that face the climacteric as old age and disease, particularly in the field of health