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Submitted by Maria Medeiros (maria.dilva1@ufcg.edu.br) on 2018-08-07T11:56:40Z No. of bitstreams: 1 WALLACE FERREIRA DE SOUZA - TESE (PPGCS) 2014.pdf: 6857029 bytes, checksum: 5beac54ed07b5d1158e0ee7fe74ac98e (MD5) / Made available in DSpace on 2018-08-07T11:56:40Z (GMT). No. of bitstreams: 1 WALLACE FERREIRA DE SOUZA - TESE (PPGCS) 2014.pdf: 6857029 bytes, checksum: 5beac54ed07b5d1158e0ee7fe74ac98e (MD5) Previous issue date: 2014 / Capes / As conquistas políticas dos grupos rotulados como minorias, que representam a emergência de novos sujeitos sociais, vêm ganhando a cena acadêmica das Ciências Sociais nestes últimos 40 anos, evidenciando a inquietação destas ciências com o novo. É a partir desse prisma das lutas por direitos que o movimento quilombola aparece impulsionado pela conquista constitucional em 1988, uma vez que, o pressuposto legal indicado no Art. 68 - Ato das Disposições Constitucionais Transitórias (ADCT) se refere a um conjunto possível de novos sujeitos sociais designados pelo termo remanescente de quilombo. Foi exatamente o enfrentamento desse novo que impulsionou a escolha do campo de pesquisa, qual seja uma comunidade quilombola da zona rural do brejo paraibano – Caiana dos Crioulos, área rural localizada a 12 km do município de Alagoa Grande-PB. A pesquisa, com sua modelagem, é erguida a partir de uma relação entre a etnografia - a prática de descrever/negociar/experimentar a “sociedade do outro” - e a cartografia cujo objetivo é definir as fronteiras, os traçados, os pontos de referência e as depressões, portanto, criar uma semântica espacial que, no caso específico dessa pesquisa, vai sendo construída por uma teia de relações tecida no cotidiano. Neste contexto etnográfico, eu me propus a pensar como problemática de pesquisa: quais dimensões podemos considerar como fundadoras do sentimento de grupo e do fluxo da vida comunitária e que, portanto, seriam definidoras da experiência desses sujeitos como comunidade remanescente de quilombolas? A partir daí, surge uma teia de relações a qual me proponho etnocartografar, entrando em cena o território, as relações de parentescos e, sobretudo, o sentimento de grupo e as experiências espirituais dos moradores de Caiana dos Crioulos. Para enfrentar esta problemática, propõe-se a delimitação de três panoramas: panorama étnico territorial, panorama espiritual e panorama familiar como dimensões que se conjugam no cotidiano, dando forma e dinâmica ao que denominei de fluxo da vida comunitária. / The political achievements of the groups labeled as minorities, which represent the emergence of new social individuals, have been gaining the academic scenario of the Social Sciences in the last forty years, highlighting the uneasiness of these sciences with the new. It is from this perspective of struggles for rights that the quilombola movement appears boosted by the constitutional conquest in 1988, once the legal assumption stated in the Art.68 – Temporary Constitutional Provisions Act (ADCT) refers to a possible set of new social individuals designated by the remaining term called quilombola. It was exactly this new confrontation that led studying to a quilombola community in the Brejo rural area of Paraíba - Caiana dos Crioulos – rural area located 12km far from Alagoa Grande-PB municipality. The piece of research, with its modeling, is based on a harmonious relationship between ethnography – the practice of describing/negotiating/experimenting “the other´s society” - and cartography whose objective is to define the boundaries, the outlines, the reference points and the depressions, thus creating a spatial semantics that, in the specific case of this study, is being constructed by a web of relations woven in the daily activities. In this ethnographic context, the research problem was focused on: which dimensions can we consider as the founders of the group´s feeling and flow of community life and that, however, would define these individuals´ experience as a remaining quilombola community? From this, a web of relations, which I propose to carry out ethnocartography, then, the territory, the relations about the relatives and, especially, the feeling of group and the spiritual experiences of those dwellers from Caiana dos Crioulos arise. In order to face this problem, the delimitation of three perspectives is proposed: territorial ethnic perspective, spiritual perspective and familiar perspective as dimensions which are articulated in the daily routine by providing form and dynamics to what I have named the flow of community life.

This work presents a novel technique for data compression based on multi-residue number systems. The basic theorem is that an under-determined system of congruences could be solved to accomplish data compression for a signal satisfying continuity of its information content and bounded in peak-to -peak amplitude by the product of relatively prime moduli,. This thesis investigates this property and presents quantitative results along with MATLAB codes. Chapter 1 is introductory in nature and Chapter 2 deals in more detail with the basic theorem. Chapter 3 explicitly mentions the assumptions made and chapter 4 shows alternative solutions to the Chinese remainder theorem. Chapter 5 explains the experiments in detail whose results are mentioned in chapter 6. Chapter 7 concludes with a summary and suggestions for future work.

Most of the Internet applications today require multicasting. For example, software updates, multimedia content distribution, interacting gaming and stock data distribution require multicast services. All of these applications require privacy and authenticity of the participants. Most of the multicasting groups are dynamic and some of them are large in number. Only those users who belong to the multicasting group should receive the information and be able to decrypt it. New users joining the group should receive information immediately but should not understand the information that was released prior to their joining. Similarly, if users leave the group, they should not receive any further information and should not be able to decrypt it. Keys need to be distributed to the users belonging to the current session and hence some kind of key management is required. Existing schemes for secure multicasting are limited to small and static groups. To allow large and dynamic groups to use the services of multicasting, some protocols have been developed: Multicast Trees, Spanning Tree, Centralized Tree-Based Key Management, Flat-key Management and Distributed Key Management. Some of these schemes are better than others with respect to the speed, memory consumption, and amount of communication needed to distribute the keys. All these schemes are limited in performance with respect to the speed, memory consumption, and amount of communication needed in distributing the keys. In this thesis, a number of public and private key algorithms and key management techniques for secure and dynamic multicasting are studied and analyzed. The thesis is focused on the secure lock method developed by Chiou and Chen, using the Chinese Remainder Theorem. The protocol is implemented for a small group of users and its performance is studied. While, the secure lock method works well for a small group of users and the performance is degraded when the group grows in size. A protocol is proposed for a large and dynamic group, based on the idea of the Chinese Remainder Theorem. A performance study is carried out by comparing our proposed protocol with the existing multicasting protocols. The analysis shows that the proposed protocol works well for large and dynamic groups and gives significantly better performance. / Master of Science

Made available in DSpace on 2015-09-25T12:23:28Z (GMT). No. of bitstreams: 1 JoselitoEulampioNobrega.pdf: 2960688 bytes, checksum: 07f8c978de1913db448d010ff048cb80 (MD5) Previous issue date: 2007-09-14 / This work is the result of an identity study in a mestizo countryside community (black and caboclo ) known as "Talhado", in the municipal district of Santa Luzia, Paraíba. The community began to be inhabited from 1860 on, It faced a semi-isolation phase and from 1970 on, suffered an emigratory process that reduced considerably its population. In 2004, "A Fundação Cultural Palmares (a cultural foundation) emitted the solemnity-recognition certificate of "Talhado" as a remainder of the quilombos communities, bringing new expectations to the group and generating in the academic world other interpretative possibilities and even explanatory ones about its ethnic specifications. Making use of a methodological triangular process that combines the History of Life (one of the classes in Oral History) with the ethnographical model developed by "Arruti" (2006), we investigated the process of formation of the "quilombolas" identity in "Talhado". Theoretically, we analyzed the existent academic references on the subject, that is to say, the documentary "Aruanda" by Linduarte Noronha and the two dissertations on master's degree produced by anthropologist Josefa Salete Barbosa Cavalcanti and by sociologist José Vandilo dos Santos, as well as, we worked with the definitions of Ethnic Identity, "Quilombola" remainder (included the idea of Quilombo ) and Memory. We discovered that "Talhado" itself doesn't present a knowledge about that "quilombolas" identity that is attributed on it, therefore, being constituted in an external construction. In this way, through the oral expression, we emphasized the subject of the Identity while taking part in the formation of the own group. / Este trabalho é resultado de um estudo de identidade numa comunidade rural mestiça (negros e caboclos) denominada Talhado , no município de Santa Luzia, Estado da Paraíba. A comunidade começou a ser habitada a partir de 1860, viveu uma fase de semi-isolamento e sofreu, a partir de 1970, um processo emigratório que reduziu consideravelmente sua população. Em 2004, a Fundação Cultural Palmares emitiu a certidão de auto-reconhecimento do Talhado como remanescente das comunidades dos quilombos, despertando novas expectativas para o grupo e gerando, para o mundo acadêmico, outras possibilidades interpretativas e até explicativas sobre sua especificidade étnica. Utilizando-se de um processo metodológico triangular que combina a História de Vida (um dos gêneros da História Oral) com o modelo etnográfico desenvolvido por Arruti (2006), investigamos o processo de construção da identidade quilombolas do Talhado. Teoricamente, analisamos os referenciais acadêmicos existentes sobre o assunto, a saber: o documentário Aruanda de Linduarte Noronha e as duas dissertações de mestrados produzidas pela antropóloga Josefa Salete Barbosa Cavalcanti e pelo sociólogo José Vandilo dos Santos, bem como, trabalhamos com as definições de Identidade Étnica, Remanescência Quilombola (incluso a idéia de Quilombo) e Memória. Averiguamos que Talhado não apresenta um conhecimento sobre essa identidade quilombolas que lhe é atribuída, constituindo-se, portanto, numa construção externa. Assim sendo, pela oralidade, enfatizamos a questão da Identidade enquanto construção do próprio grupo.

Made available in DSpace on 2015-04-11T13:57:59Z (GMT). No. of bitstreams: 1 Dissertacao- Rita de Cassia Abreu Mascarenhas.pdf: 947995 bytes, checksum: 101de5a6ac535cec24d203cf4201b180 (MD5) Previous issue date: 2008-09-01 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / The major issue to be dealt with in this research work consists in reviewing the transparency of the accounting information made public by the Federal Government in respect of remainder payables. In the attainment of this general research objective three specific objectives were drafted, namely: (i) to identify the necessary accounting requirements to the production of transparent information; (ii) to verify the existence of cancellation of remainder payables and their respective effects, both as to the Remainder Payables and the Executed Expenses; (iii) to examine the research findings under the light of the applicable theory, so as to indicate possible failures related to the transparency matrix. With a view towards attaining the first specific objective, still at the theoretical foundation, a transparency matrix was designed, representing the necessary presuppositions to the production of a transparent accounting information system. The research work is classified as explanatory as to its objectives; as documental analysis as to the procedures and a qualitative approach was carried as to the problematique. The period was delimited to the 2002-2006 period and the data have been drawn from the functional classification of the expenditure. The results of the work have indicated a compromising in the transparency ranging from null to full in the functions under review. Such results, therefore, have allowed us to conclude that the publication carried out by the Government relative to the remainder payables and the executed expenses have failed to present themselves as transparent in a great number of functions. / A problemática fundamental desse trabalho de pesquisa consiste em analisar a transparência de informações contábeis divulgadas pelo Governo Federal, no que concerne a Restos a Pagar. Para consecução desse objetivo geral de pesquisa, foram elaborados três objetivos específicos, quais sejam: (i) identificar os requisitos contábeis necessários à produção de informação transparente; (ii) averiguar a existência de cancelamento de Restos a Pagar e seus respectivos efeitos, tanto nas contas de Restos a Pagar quanto de Despesa Executada; (iii) examinar os achados da pesquisa, a luz da teoria concernente, de modo a apontar possíveis falhas relacionadas à matriz de transparência. Com vistas a cumprir o primeiro objetivo específico, foi elaborada, ainda, na fundamentação teórica, uma matriz de transparência com base na teoria existente, a qual apresenta os pressupostos necessários à produção de informação contábil transparente. A pesquisa é classificada em explicativa, quanto aos objetivos; em análise documental, quanto aos procedimentos e foi realizada abordagem qualitativa da problemática. A pesquisa foi delimitada no período de 2002 a 2006 e os dados foram extraídos com base na classificação funcional da despesa. Os resultados do trabalho apontam para um comprometimento da transparência, variando de nulo a pleno, nas funções sob análise. Desse modo, esses resultados permitem concluir que a divulgação realizada pelo governo, no que concerne a restos a pagar e despesa executada, não se apresenta, para um grande número de funções, de forma transparente.

This dissertation explores the influence of melody on harmonic function in pop and rock songs from around 1950 to the present. While authors define the term "function" in several ways, none consider melody in their explanations, and I contend that any discussion of harmonic function in rock must include melody. I offer a novel perspective on function by defining it through what I call tension-as-anticipation, and I define a "melodic function" that accounts for the sense of tension and relaxation a melody creates within a particular moment in a track. My dissertation defines two types of melodic function—dominant and tonic—based on the melody's goal-directed scale-degree content, position within a phrase, and relation with the harmony. Dominant-melodic function results in two musical phenomena that I call the "imposed dominant" and the "dominant remainder." An imposed dominant occurs when a dominant-melodic function is initially dissonant with the harmony and resolves over a tonic. A dominant remainder occurs when a dominant-melodic function occurs over a harmonic resolution to the tonic, creating a slower dissipation of tension. Tonic-melodic function produces a phenomenon I call the "tonic anticipation," where a melody outlines a tonic mode over a pretonic harmony, creating a maximum sense of tension-as-anticipation. By including melody in considering harmonic function, we can more adequately describe the cycles of tension and resolution found in pop styles.

Esta tese é resultado de um estudo sobre O Primo Basílio (1978) que estabelece a composição da personagem Basílio de Brito como centro da investigação. A leitura deste romance evidencia uma série de lacunas e, no intuito de preencher as mais ligadas a Basílio, buscou-se resgatar o panorama histórico de onde Eça de Queirós colheu informações para dar movimento à trama em que essa figura atua, efetuando-se, assim, uma engenharia reversa. É premissa deste trabalho que o romance queirosiano de adultério – sem negligenciar o estatuto ficcional – contém informações que comunicam fatos da história de Portugal e do Brasil, as quais estão acomodadas em camada subjacente do texto devido ao afastamento temporal da época em que foi escrito. O ponto de partida das pesquisas aqui apresentadas foi um dado do romance sobre o qual não foram encontrados estudos: Basílio acumulou fortuna no Brasil no mercado de ações ligado aos negócios da borracha do alto Paraguai. A partir dessa informação, foram investigadas as condições econômicas luso-brasileiras da segunda metade do Oitocentos, incluindo um estudo detalhado sobre a emigração portuguesa para o Brasil e também sobre o imaginário de Eldorado associado à antiga América Portuguesa. Objetivou-se discutir as escolhas autorais de Eça de Queirós que o levaram a atribuir caracteres a Basílio não usuais na representação de outros torna-viagem (“brasileiros”) da dramaturgia e da literatura produzida em Portugal no século XIX. Essa discussão evidenciou que Basílio foi criado segundo um modelo de representação francês, uma vez que a abordagem de Eça de Queirós situa os dilemas socioeconômicos portugueses em um contexto mais abrangente, não limitado à histórica inter-relação entre Portugal e Brasil. Além disso, apresenta uma chave de leitura distanciada daquelas que costumam enquadrar a atuação de Basílio apenas como o pivô da ruína de um matrimônio burguês. / This thesis, which is the outcome of a study about the book O Primo Basílio (1978), centers its inquiry at the constitution of the character Basílio de Brito. The reading of this novel distinctly shows a series of gaps, and, in order to fill the ones closer to Basílio, it became paramount to research the historical background from which Eça de Queirós gathered the information to move forward the plot in which the character acts, thus, bringing about a reverse engineering. It is the premise of this work that Queirós´s novel of adultery – without neglecting the fictional statute - contains information that communicate historical facts about Portugal and Brazil, which are placed at the underlying level of the text, due to the chronological distancing at the time it has been written. The starting point of the presented researches has been a data from the novel about which no studies have been found: Basílio built a fortune in the Brazilian stock market of rubber at the upper Paraguay region. Starting with this information, the economic conditions of Portugal and Brazil during the second half of the 1800s were investigated, including a thorough study about Portuguese emigration to Brazil, and about the imaginary of Eldorado associated to the ancient Portuguese America. The goal was to discuss Eça´s writing choices that made him give Basílio unusual traits in the representation of other remainders – “Brazilians” – in Portuguese Drama and Literature of the 19th Century. This discussion made clear that Basílio was created in accordance with a French representation model, since Eça de Queirós´s approach places the Portuguese socioeconomic dilemmas in a broader context, not limited to the historical inter-relation between Portugal and Brazil. Besides, it opens a key for reading distanced from the ones that frame Basílio´s role solely as the pivot of the ruin of a bourgeois matrimony.

Este trabalho estuda a possibilidade de se aprofundar o conceito de divisão Euclidiana, no Ensino Fundamental, de modo a evidenciar a relevância e o significado para o resto. Oferece algumas considerações sobre a divisão, além de uma análise de vários livros didáticos, dissertações de mestrado e tese de doutorado sobre o tema. Apresenta uma proposta didática baseada nos Registros de Representação Semiótica, de Raymond Duval e nos Cenários para Investigação, de Ole Skovsmose. Essa proposta foi implementada e validada em uma turma do 7º Ano de uma escola municipal de Garibaldi, RS. A análise dos registros coletados e dos diálogos estabelecidos mostra que a sequência didática foi bem sucedida tanto nos avanços logrados pelos alunos na compreensão dos conteúdos, quanto no engajamento com a proposta, levantamento de hipóteses, elaboração de conclusões e justificativas. / In this work we study the possibility of enhancing the Euclidian division concept in high school level in order to evidence the relevance and meaning to the remainder. We offer some considerations about the division, beyond of an analysis of various text books, Masters degree dissertations and Ph.D theses related to this subject. We present a didactic proposal based on Raymond Duval’s Registers of Semiotic Representation and Ole Skovsmose’s Investigation Scenarios. This proposal was implemented and validated with a 7th year class of a municipal school in Garibaldi, RS. The analysis of the collected data and actual dialogs show that the didactic sequence was successful regarding the contents comprehension advancement obtained by the students as well as the participation with the proposal, the confection of hypotheses and the elaboration of conclusions and justifications.

Este trabalho estuda a possibilidade de se aprofundar o conceito de divisão Euclidiana, no Ensino Fundamental, de modo a evidenciar a relevância e o significado para o resto. Oferece algumas considerações sobre a divisão, além de uma análise de vários livros didáticos, dissertações de mestrado e tese de doutorado sobre o tema. Apresenta uma proposta didática baseada nos Registros de Representação Semiótica, de Raymond Duval e nos Cenários para Investigação, de Ole Skovsmose. Essa proposta foi implementada e validada em uma turma do 7º Ano de uma escola municipal de Garibaldi, RS. A análise dos registros coletados e dos diálogos estabelecidos mostra que a sequência didática foi bem sucedida tanto nos avanços logrados pelos alunos na compreensão dos conteúdos, quanto no engajamento com a proposta, levantamento de hipóteses, elaboração de conclusões e justificativas. / In this work we study the possibility of enhancing the Euclidian division concept in high school level in order to evidence the relevance and meaning to the remainder. We offer some considerations about the division, beyond of an analysis of various text books, Masters degree dissertations and Ph.D theses related to this subject. We present a didactic proposal based on Raymond Duval’s Registers of Semiotic Representation and Ole Skovsmose’s Investigation Scenarios. This proposal was implemented and validated with a 7th year class of a municipal school in Garibaldi, RS. The analysis of the collected data and actual dialogs show that the didactic sequence was successful regarding the contents comprehension advancement obtained by the students as well as the participation with the proposal, the confection of hypotheses and the elaboration of conclusions and justifications.