Aprender e ensinar na escola inclusiva: desafios na construção da identidade de pedagogos

The democratization of Brazilian education and discussion about the educational rights of persons with disabilities in refer to reflection on the conceptions of teaching and learning and the folding of these concepts in practice and in the formation of professional identity of the teacher educator. Thus, the proposed research in this dissertation aimed to describe educational processes developed by educators in classrooms in which they are enrolled students with disabilities a view to considering how these processes affect the construction of their professional identity of the pedagogue. As the methodology used to research is classified as Case Study. This methodological approach enables the analysis of singularities of educational contexts. In this work, the case investigated consisted of the analytical study of the pedagogical practices developed in classrooms where there are students with disabilities and their relation to the establishment of the professional identity of the teacher in a school linked to a non-governmental organization supporting people with disabilities in the city of Natal / RN. The Data were collected through the use of the following instruments: exploratory questionnaires, observation and respective registration in the field diary of research and interviews with educators in different professional cycles proposed by Huberman. The data reveal didactic and pedagogical aspects common in educational processes in the observed classes and differences concerning the specifics of pedagogues in the teaching profession in different moments of their professional careers. The analysis of the conceptions tell us the nuances of meanings constructed on teaching and learning and its interface with the reflection on teaching practice. As to the meaning assigned to be pedagogue research highlights the professional identification related to the meanings of teaching and learning in school. The experiences in the teaching profession according to the survey data point to changes in teachers conceptions about teaching and learning disabled people in the perspective of inclusion. Therefore, the study concludes that the pedagogical practices with students with disabilities the different experiences add up and can transform conceptions of teachers about teaching and learning interfering with constant reflection on practices and the construction of professional identities of pedagogues.

No cotidiano da escola: o pensar e agir de jovens e adultos

The necessity of the view of the Youth and Adults Education (EJA) subjects beyond of their academic failures becomes imperative for a reconfiguration of this teaching modality. Thus, the compromise of this study is to go into these subjects‘ universe, give them a voice and, therefore, understand, in general, the web of relationships between these subjects and the school. It is understood that it is not possible to figure out the means attributed by the subjects without consideration, as an essential element, the social context in which such means has been built. For the development of this study, the methodology adopted was the ethnographic research. The procedures used for the data construction were the participative observation, the semi-structured interviews with a focal group, and the individualized semi-structured interviews. For the understanding of the data constructed in the field, the content analysis technique was used, which reach the expectations of an interpretative analysis. The observation occurred mainly in the classrooms, on a public school, located in a City of Natal/RN. The interviews were taken with a sample of eight students, males and females, with 25 to 60 year-olds. Such interviews highlight that for the young adult students, the school is much more than a place to learn. They realize such space as enabler of social interaction, as well as the possibility of rising through new professional horizons and, therefore achieve a social mobility. For the older students, mainly among women, the return to the school benches brings into the learning discourse, the desire of making new friends, having moments of meeting, chatting and relaxation, finally, to forget the problems of the day by day. The school quotidian observation allows a better understanding of the action of the subjects in relationship with the school practices. Finally, it can be affirmed that seeking for the school has not only the intention to recover the time lost in the childhood. Learning remains as a secondary goal. It does not matter whether they will be retained or promoted to the next level at the end of the academic year, what really matters is to be in school.

Estimação e previsão no processo INARCH(2)

In the last decades the study of integer-valued time series has gained notoriety due to its broad applicability (modeling the number of car accidents in a given highway, or the number of people infected by a virus are two examples). One of the main interests of this area of study is to make forecasts, and for this reason it is very important to propose methods to make such forecasts, which consist of nonnegative integer values, due to the discrete nature of the data. In this work, we focus on the study and proposal of forecasts one, two and h steps ahead for integer-valued second-order autoregressive conditional heteroskedasticity processes [INARCH (2)], and in determining some theoretical properties of this model, such as the ordinary moments of its marginal distribution and the asymptotic distribution of its conditional least squares estimators. In addition, we study, via Monte Carlo simulation, the behavior of the estimators for the parameters of INARCH(2) processes obtained using three di erent methods (Yule- Walker, conditional least squares, and conditional maximum likelihood), in terms of mean squared error, mean absolute error and bias. We present some forecast proposals for INARCH(2) processes, which are compared again via Monte Carlo simulation. As an application of this proposed theory, we model a dataset related to the number of live male births of mothers living at Riachuelo city, in the state of Rio Grande do Norte, Brazil.

Estimação e previsão no processo INARCH(2)

In the last decades the study of integer-valued time series has gained notoriety due to its broad applicability (modeling the number of car accidents in a given highway, or the number of people infected by a virus are two examples). One of the main interests of this area of study is to make forecasts, and for this reason it is very important to propose methods to make such forecasts, which consist of nonnegative integer values, due to the discrete nature of the data. In this work, we focus on the study and proposal of forecasts one, two and h steps ahead for integer-valued second-order autoregressive conditional heteroskedasticity processes [INARCH (2)], and in determining some theoretical properties of this model, such as the ordinary moments of its marginal distribution and the asymptotic distribution of its conditional least squares estimators. In addition, we study, via Monte Carlo simulation, the behavior of the estimators for the parameters of INARCH(2) processes obtained using three di erent methods (Yule- Walker, conditional least squares, and conditional maximum likelihood), in terms of mean squared error, mean absolute error and bias. We present some forecast proposals for INARCH(2) processes, which are compared again via Monte Carlo simulation. As an application of this proposed theory, we model a dataset related to the number of live male births of mothers living at Riachuelo city, in the state of Rio Grande do Norte, Brazil.

O ensino por investigação: construindo possibilidades na formação continuada do professor de ciências a partir da ação-reflexão

Studies and reflections about the current trends on teaching Science show us the importance of include in the teaching practice, activities with a investigative and problematic approach, that allow to the learners to understand and to apply concepts and phenomena scientifics. On this perspective, the teacher continuing education is essential to effect the practice of this approach in the classroom. Therefore, this research has as an objective to contribute with Science teacher continuing formation in the basic education, in the use of the investigative approach, with a view to overcoming obstacles and making change in pedagogical practice using this research elements. For this, a qualitative research with science teachers of basic schools in the city of Natal/ RN/ Brazil was held, who attended the training course on teaching by investigation in 2012, through the project entitled "Em Busca de Novos Talentos para a Ciência: uma intervenção no ensino público" (Searching New Talents for Science: an intervention in public education).The research was conducted in four stages: Diagnosis of the conceptions of education for research and incorporation into practice after the New Talents course; projection of the intervention, intervention and evaluation. To obtain the data it was made a questionnaire, semi-structured interviews, group studies, written records and participant observation. It was analyzed that the course had significant contributions to the participating teachers to promote the approach and the motivation for incorporation of the investigative approach in practice. The permanence of weaknesses related to the theoretical basis was found, the wear resistance, difficulty in planning activities and the change in practice, diagnosed the previous course of this research. It was also noticed certain lack of domain of teaching principles of investigation by the teachers, who despite being well understood in theory, reveal gaps in practice. Despite not having been exploited the full potential of investigative activity is apparent that the inclusion of activities with an investigative approach to science and biology classes is essential for an active, critical and reflective posture of the students as well as the interest in learning about science. It was demonstrated that intervention with moments of reflection, engagement, knowledge exchange, it was effective in overcoming difficulties identified at baseline as well as providing greater motivation to face the innovations and changes in education, suggesting an important format to considered in the course of continuing education. This is because the planning and replanning allow teachers to reflect and evaluate their practice, contributing to overcoming difficulties of teachers on a daily basis.

O ensino por investigação: construindo possibilidades na formação continuada do professor de ciências a partir da ação-reflexão

Studies and reflections about the current trends on teaching Science show us the importance of include in the teaching practice, activities with a investigative and problematic approach, that allow to the learners to understand and to apply concepts and phenomena scientifics. On this perspective, the teacher continuing education is essential to effect the practice of this approach in the classroom. Therefore, this research has as an objective to contribute with Science teacher continuing formation in the basic education, in the use of the investigative approach, with a view to overcoming obstacles and making change in pedagogical practice using this research elements. For this, a qualitative research with science teachers of basic schools in the city of Natal/ RN/ Brazil was held, who attended the training course on teaching by investigation in 2012, through the project entitled "Em Busca de Novos Talentos para a Ciência: uma intervenção no ensino público" (Searching New Talents for Science: an intervention in public education).The research was conducted in four stages: Diagnosis of the conceptions of education for research and incorporation into practice after the New Talents course; projection of the intervention, intervention and evaluation. To obtain the data it was made a questionnaire, semi-structured interviews, group studies, written records and participant observation. It was analyzed that the course had significant contributions to the participating teachers to promote the approach and the motivation for incorporation of the investigative approach in practice. The permanence of weaknesses related to the theoretical basis was found, the wear resistance, difficulty in planning activities and the change in practice, diagnosed the previous course of this research. It was also noticed certain lack of domain of teaching principles of investigation by the teachers, who despite being well understood in theory, reveal gaps in practice. Despite not having been exploited the full potential of investigative activity is apparent that the inclusion of activities with an investigative approach to science and biology classes is essential for an active, critical and reflective posture of the students as well as the interest in learning about science. It was demonstrated that intervention with moments of reflection, engagement, knowledge exchange, it was effective in overcoming difficulties identified at baseline as well as providing greater motivation to face the innovations and changes in education, suggesting an important format to considered in the course of continuing education. This is because the planning and replanning allow teachers to reflect and evaluate their practice, contributing to overcoming difficulties of teachers on a daily basis.

Empirical likelihood based longitudinal studies

In longitudinal data analysis, our primary interest is in the regression parameters for the marginal expectations of the longitudinal responses; the longitudinal correlation parameters are of secondary interest. The joint likelihood function for longitudinal data is challenging, particularly for correlated discrete outcome data. Marginal modeling approaches such as generalized estimating equations (GEEs) have received much attention in the context of longitudinal regression. These methods are based on the estimates of the first two moments of the data and the working correlation structure. The confidence regions and hypothesis tests are based on the asymptotic normality. The methods are sensitive to misspecification of the variance function and the working correlation structure. Because of such misspecifications, the estimates can be inefficient and inconsistent, and inference may give incorrect results. To overcome this problem, we propose an empirical likelihood (EL) procedure based on a set of estimating equations for the parameter of interest and discuss its characteristics and asymptotic properties. We also provide an algorithm based on EL principles for the estimation of the regression parameters and the construction of a confidence region for the parameter of interest. We extend our approach to variable selection for highdimensional longitudinal data with many covariates. In this situation it is necessary to identify a submodel that adequately represents the data. Including redundant variables may impact the model’s accuracy and efficiency for inference. We propose a penalized empirical likelihood (PEL) variable selection based on GEEs; the variable selection and the estimation of the coefficients are carried out simultaneously. We discuss its characteristics and asymptotic properties, and present an algorithm for optimizing PEL. Simulation studies show that when the model assumptions are correct, our method performs as well as existing methods, and when the model is misspecified, it has clear advantages. We have applied the method to two case examples.

As representações externas - na resolução de problemas matemáticos no 2º e 3º anos do ensino básico

Relatório de estágio para obtenção de grau de mestre em Educação pré-escolar e Ensino do 1º ciclo do ensino básico

A influência do amortecimento viscoelástico na estabilidade aeroelástica de painéis aeronáuticos

Since the creation of supersonic vehicles, during the Second World War, the engineers have given special attention to the interaction between the aerodynamic efforts and the structures of the aircrafts due to a highly destructive phenomenon called flutter in aeronautical panel. Flutter in aeronautical panels is a self-excited aeroelastic phenomenon, which can occurs during supersonic flights due to dynamic instability of inertia, elastic and aerodynamic forces of the system. In the flutter condition, when the critical aerodynamic pressure is reached, the vibration amplitudes of the panel become dynamically unstable and increase exponentially with time, affecting significantly the fatigue life of the existing aeronautical components. Thus, in this paper, the interest is to investigate the possibility of reducing the effects of the supersonic aeroelastic instability of rectangular plates by applying passive constrained viscoelastic layers. The rationale for such study is the fact that as the addition of viscoelastic materials provides decreased vibration amplitudes it becomes important to quantify the suppression of plate flutter coalescence modes that can be obtained. Moreover, despite the fact that much research on the suppression of panel flutter has been carried out by using passive, semi-active and active control techniques, very few of them are adapted to deal with the problem of estimating the flutter speeds of viscoelastic systems, since they must conveniently account for the frequency- and temperature-dependent behavior of the viscoelastic material. In this context, two different model of viscoelastic material are developed and applied to the model of sandwich plate by using finite elements. After the presentation of the theoretical foundations of the methodology, the description of a numerical study on the flutter analysis of a three-layer sandwich plate is addressed.

INFORMAR E ENTRETER: O PROCESSO DE PRODUÇÃO DA NOTÍCIA NO HOJE EM DIA

Sabe-se que o entretenimento está incorporado no cotidiano da sociedade moderna de maneira que ultrapassa apenas os momentos de lazer e ócio, fazendo-se presente nos ambientes profissionais, na educação e na informação. Em meio a essa nova concepção, a comunicação também percebe alterações, seja pela interatividade promovida pela midiatização, pelo novo aspecto da audiência, mais exigente e conectada, ou ainda pela hibridização de gêneros e formatos. Neste contexto, surgem programas de entretenimento, especialmente televisivos, que incorporam aspectos técnicos e práticos do jornalismo, incluindo a narrativa e os processos produtivos. Tais programas veiculam um conteúdo denominado de infotenimento, que mescla informação e entretenimento e, assim, a representação jornalística da vida social fica vinculada à distração e ao divertimento. A dissertação faz uma análise do processo de produção do conteúdo noticioso dentro de um programa de entretenimento e variedades que apresenta grande quantidade de conteúdo jornalístico em sua composição: o Hoje Em Dia, da Rede Record. Trata-se de um estudo qualitativo, do tipo estudo de caso, com uso de técnicas de observação direta, entrevistas semiabertas, pesquisa documental e análise de conteúdo. A questão da reprodutibilidade técnica de padrões e a inserção de elementos cotidianos aliados à indústria cultural e à comunicação em massa também é retratada nesta dissertação. A principal intenção é entender como é a dinâmica da produção jornalística em programas que visam entreter e, ao mesmo tempo, informar. De que maneira esses produtos híbridos da modernidade são pensados e como a teoria do infotenimento pode ser aliada às mediações comunicacionais da cultura.

JORNALISMO DIVERSIONAL: função, contornos e práticas na imprensa brasileira

Há, dentre os gêneros jornalísticos, especialmente os praticados na imprensa brasileira, um agrupamento a que José Marques de Melo atribui o nome de “jornalismo diversional”. Diferenciado por sua finalidade afeita à diversão e por abranger matérias reveladoras de histórias interessantes, a estrutura de seus formatos assimila elementos da literatura e da antropologia. Mas que motivações levam repórteres a desenvolver tal gênero e em quais circunstâncias? Quais métodos são adotados para sua feitura? Que forças agem aí? O estudo apresentado nesta tese buscou compreender como se dá esse processo, observando e comparando os modos de fazer adotados por nove jornalistas brasileiros, escolhidos por se submeterem a dois critérios inter-relacionados: 1) serem reconhecidos pelo meio jornalístico e/ou pelo mercado editorial como figuras que se destacam nesse exercício; e 2) terem produzido textos – com as características mencionadas – para jornais e/ou revistas e que, posteriormente, foram compilados em livro. A metodologia empregada tem vínculo estreito com a perspectiva teórica do newsmaking, valendo-se da técnica apropriada para uma observação que considera diferentes momentos da história (década de 1950 para cá): a entrevista, no seu tipo semiestruturado. O quadro de jornalistas entrevistados é formado por Audálio Dantas, Carlos Wagner, Consuelo Dieguez, Daniela Pinheiro, Eliane Brum, João Moreira Salles, José Hamilton Ribeiro, Ricardo Kotscho e Zuenir Ventura. Como resultado, defendemos que o gênero aqui posto como tema de pesquisa é cultivado por um seleto grupo de profissionais, capazes de direcionar olhares sensíveis sobre a realidade, para dela extrair detalhes e enredos que toquem nos sentimentos dos leitores, divertindo-os, ao propiciar gratificação estética, em contraponto à alienação que se costuma presumir. Trata-se de produção dependente de criatividade e curiosidade, de talento para redigir textos agradáveis e de métodos de apuração e de escrita altamente subjetivos, mas que aparecem como questão bem resolvida no agir profissional desses sujeitos. Essa capacidade também é que os possibilita conquistar espaço, em meio a embates com editores e diretores de redação, para elaborar matérias em que a autoria se sobressai. Por fim, a função de divertir, atribuída ao gênero, é confirmada pelos profissionais, ainda que de modo implícito

Esgotamento do padrão de acumulação de capital e política econômica brasileira: do II PND aos anos 2000

This work aim to show that the reach to the limits of capital accumulation, which is showing its first signs since the 60 s, has and still is exercising great importance in Brazilian economic policies. In the first chapter, we establish a reference to what is understood as the limit of capital accumulation after World War II and how the accumulation process drives itself to its own limits. In the following chapters, we detach the importance of the reached limit to the most relevant moments of Brazilian economic policy. Since the IIPND, when the first signs of influence raise in Brazilian economy, passing through the stabilizing attempts during the 80 s and 90 s and the emergence of the pro-market State in Brazil, until the 00 s, when macroeconomic prudence took shape and delimited the conduction of the country s economic policy, we will show how the limit of capital accumulation has played an important role.

Sequência didática com temas motivadores no ensino de física

This study is based on the design and development of a Didactic sequence in Physics for the first year of high school in a public school, involving structured activities on Astronomy topics, Astronautics and Aeronautics. In addition, it produced a didactic-pedagogic Tutorial for teachers to develop teaching-learning processes in Physics through activities with handmade rockets. These activities have been based on teaching moments of questioning, systematization and contextualization. In this context the understanding and the deepening of concepts and scientific and physical phenomena are related to everyday knowledge, in accordance with the historical-cultural theory, with the Three Pedagogic Moments, dialogicity and Information and Communication Technologies as instruments of triggering actions and motivation, like movies and applications in teaching Astronomy, Physics and Mathematics. The research activities were conduced by adopting a qualitative approach and included reports, questionnaires, semi-structured interviews and other notes. The development of the Didactic Sequence enabled a differentiated teaching and learning process, including aspects such as conceptualization, contextualization, flexibility, interdisciplinary and theoreticalexperimental relationship.

We Are the Ones We Have Been Waiting for: Pan-African Consciousness Raising and Organizing in the United States and Venezuela

We Are the Ones We Have Been Waiting for: Pan-African Consciousness Raising and Organizing in the United States and Venezuela, draws on fifteen months of field research accompanying organizers, participating in protests, planning/strategy meetings, state-run programs, academic conferences and everyday life in these two countries. Through comparative examination of the processes by which African Diaspora youth become radically politicized, this work deconstructs tendencies to deify political s/heroes of eras past by historicizing their ascent to political acclaim and centering the narratives of present youth leading movements for Black/African liberation across the Diaspora. I employ Manuel Callahan’s description of “encuentros”, “the disruption of despotic democracy and related white middle-class hegemony through the reconstruction of the collective subject”; “dialogue, insurgent learning, and convivial research that allows for a collective analysis and vision to emerge while affirming local struggles” to theorize the moments of encounter, specifically, the moments (in which) Black/African youth find themselves becoming politically radicalized and by what. I examine the ways in which Black/African youth organizing differs when responding to their perpetual victimization by neoliberal, genocidal state-politics in the US, and a Venezuelan state that has charged itself with the responsibility of radically improving the quality of life of all its citizens. Through comparative analysis, I suggest the vertical structures of “representative democracy” dominating the U.S. political climate remain unyielding to critical analyses of social stratification based on race, gender, and class as articulated by Black youth. Conversely, I contend that present Venezuelan attempts to construct and fortify more horizontal structures of “popular democracy” under what Hugo Chavez termed 21st Century Socialism, have resulted in social fissures, allowing for a more dynamic and hopeful negation between Afro-Venezuelan youth and the state.

Exchange-Trade Funds Evaluation using Performance Measures Distribution

In this study we propose the use of the performance measure distribution rather than its punctual value to rank hedge funds. Generalized Sharpe Ratio and other similar measures that take into account the higher-order moments of portfolio return distributions are commonly used to evaluate hedge funds performance. The literature in this field has reported non-significant difference in ranking between performance measures that take, and those that do not take, into account higher moments of distribution. Our approach provides a much more powerful manner to differentiate between hedge funds performance. We use a non-semiparametric density based on Gram-Charlier expansions to forecast the conditional distribution of hedge fund returns and its corresponding performance measure distribution. Through a forecasting exercise we show the advantages of our technique in relation to using the more traditional punctual performance measures.