Rubiaceae em um remanescente de floresta atlântica no Rio Grande do Norte, Brasil

Empresa de Pesquisa Agropecuária do Rio Grande do Norte

Missa de Alcaçus: aproximações melódicas com os romances medievais ibéricos

Este trabalho tem como objetivo investigar a obra Missa de Alcaçus a partir dos romances medievais ibéricos recolhidos do livro Romanceiro de Alcaçus de Deífilo Gurgel (1992). Parte-se do interesse de buscar afinidades melódicas entre os romances com as partes da Missa e de compreender como se deu o processo de inserção dos romances ibéricos, como elementos da cultura popular na obra erudita. Para a análise musical da obra Missa de Alcaçus, o trabalho tem como referência o conceito de afinidade eletiva por Max Weber (1995) atribuído as possibilidades de inserção de elementos da música tradicional do Nordeste à obra erudita. Quanto os romances ibéricos recolhidos da tradição oral, tomamos o conceito de memória coletiva de Maurice Halbwachs (2006), a fim de esclarecer o processo de construção da memória coletiva contida nesses romances. A pergunta central deste trabalho consiste em saber se há afinidade melódica entre os romances e as partes da Missa de Alcaçus. Para a metodologia desta pesquisa, são expostos os romances ibéricos e as partes da Missa num quadro de cartografia simbólica, segundo Boaventura Santos (2000), a fim de identificar onde, como e quais os desdobramentos musicais da obra

Os embates entre ciência e política na experiência parlamentar de Josué de Castro

This study want to know how Josué de Castro, the two terms of a congressman, participated in the Brazilian political-ideological debate of the 1950s. For this, search the 61 speeches in the plenary of the House of Representatives and its 14 projects, analyzing them as historical documents that describe an experience, which enables the central category amalgamated the subject and his time, which breaks up the possibilities of new social practices. Unity of action and reflection, the experience of Castro in the Brazilian parliament has got on the basis of a previous flow experiences in the political-institutional and scientific. Together with the personal history, the political intellectual scenario of his time was another variable considered in the first chapter of this work. In the second chapter did an analysis of 32 speeches and projects of the first term of Josué de Castro, grouping them by thematic affinities. The 43 for the second term were discussed in the third chapter, leaving the final considerations answer the research objectives: What are the main interlocutors? What are your political positions? What are the points of rupture and continuity in his political career? Josué de Castro spoke to the Brazilian state directly to the president, some ministers and to the SUDENE, the ONU appears indirectly through the reports of his participations. His political position was a national-developmentalist who embraced the cause of self-determination of the countries, anti-imperialism, agrarian reform and regional planning, strongly inspired by Celso Furtado and San Tiago Dantas. Castro often has blended a liberal and Marxist terminology, relying on different ideologies to do support his fight against hunger

Imbricações entre Goethe e Kant: Arte, Natureza e Sublime

Este ensaio aborda afinidades entre Johann Wolfgang von Goethe (1749-1832) e Immanuel Kant (1724-1804), principalmente em relação à Crítica da Faculdade do juízo kantiana. Investiga-se assim o diálogo teórico que implícita ou explicitamente permeia o texto goethiano e a obra do filósofo de Königsberg envolvendo temas, tais como Arte, Natureza e Sublime.

Levantamento cariotípico em espécies de peixes marinhos costeiros de fundo arenoso (Osteichthypes, Perciformes)

Cytogenetics analyses in fish are important because they compose a private group among the vertebrates, occupying a central position in the animal evolution. The Perciforms Order, dominant in the marine and freshwater environment, it constitutes a model potentially useful in the genetic evaluation of populations, as well as in the understanding of its evolutionary processes. In spite of this, cytogenetics studies in this great group is scarce, above all for the inhabitants of sandy bottom and pelagics habits. The present work proposed to contribute for the cytogenetic characterization of nine species of fish marine of sandy bottom of the coast of Rio Grande do Norte (Brazil), identifying the evolutionary patterns related to the karyotype in these species and the existence of filogenetics affinities between them and other Perciformes. The animals were collected in the beaches of the Redinha, Ponta Negra and Búzios (Coast of Rio Grande do Norte) and in Saint Peter and Saint Paul Archipelago. Later on they were submitted to the cytogenetics technical that consist of mitotic estimulation, obtaining of mitotics chromosomes, proceeded by techniques of conventional coloration (Giemsa) and chromosomic bands (Ag-RONs and C band). Diploid number and fundamental number equal to 48 were observed in most of the species: Menticirrhus americanus, Ophioscion punctatissimus, Pareques acuminatus (Sciaenidae); Chloroscombrus chrysurus (Carangidae); Echeneis sp. 2 (Echeneidae); Archosargus probatocephalus (Sparidae) and Orthopristis ruber (Haemulidae). Trachinotus goodei (NF=52) (Carangidae) and Echeneis sp. 1 (Echeneidae) (NF=54) presented variation in NF, staying constant a diploid number equal to 48. RONs was situated in pericentromeric position in whole the scianids, and in the species Echeneis sp. 2 (22° pair), O. ruber and A. probatocephalus (1° pair), coinciding with great heterocromatics blocks in M. americanus (1° pair), P. acuminatus (2° pairl) and O. ruber (1° pair). RONs was also located in the telomeric area of the short arm of the 5° and 11° acrocentrics pairs in T. goodei, 4° and 19° pairs of C. chrysurus, 1° pair (sm) of Echeneis sp. 1. The C band detected centromeric blocks in most of the chromosomes of the species of Sciaenidae, Carangidae and Echeneidae, with great blocks in A. probatocephalus (4° pair). Heterocromatic blocks in telomeric areas in submetacentrics of Echeneis sp. 1, and pericentromerics in M. americanus (1° and 8° pairs), O. punctatissimus (1° pair) and P. acuminatus (2° pair) were also observed. It is noticed a marked conservatism cromossomic in the species of the family Scianidae and Haemulidae in what says respect to the number of acrocentrics chromosomes and the location of RONs. Even so it is outstanding the presence of heterocromatinization events during the karyotypic evolution of this family. Already in the families Sparidae and Carangidae, the obtained results reaffirm examples of small variations structural resultants of inversion and translocation Robertsonian, as important mechanisms of diversification karyotipical, as well as a pattern numerical evolutionary conserved, also observed in representatives of Echeneidae of Atlantic in relation to Pacific. The presence of RONs multiple, observed in the species T. goodei and C. chrysurus seems to represent a character derived in the family Carangidae. The results for the species O. ruber and A. probatocephalus suggest the presence of possible geographical or climatic barriers among populations of NE of Brazil in relationship the one of the SE

Cantos de bar: sociabilidades e boemia na cidade de Natal

The academic work Bar Corners: sociability and bohemia in the Natal City (1946-1960) has as objective the study of a representation of the literary bohemia in Natal in the second half of the 1940 s and 50 s, by means of analyses of the memory books and the chronicles of the newspapers A Ordem and A República. In order to have a better understanding concerning the subject, in the first chapter we try to show the transformations which have occurred in Natal and, consequently, within Natal sociability during the first half of the twentieth century. The bohemia, demonstrated in this dissertation as a way of sociability, expressed itself through the meetings in bars and the serenades. In the second chapter, the study conducted a mapping of the bohemian spaces (cafes, candy stores, bars and prostituition houses) and established the differences between these spaces. We ideated the spaces as the stage of interpersonal relations, as people went to these places in the attempt to participate of the conversation groups that were found there, choosing them according to their affinity and personal interests. The last chapter has the purpose of investigating the bohemia in Natal through the experience of the chronicler Newton Navarro, who used to roam the dark streets of Ribeira in search for open bars, extending bohemia until dawn. The intellectual activity was associated with his bohemian practices. As he frequented the marginal areas in Natal, Navarro wrote about them in the major newspapers of the city

Segmentação Fuzzy de Texturas e Vídeos

The segmentation of an image aims to subdivide it into constituent regions or objects that have some relevant semantic content. This subdivision can also be applied to videos. However, in these cases, the objects appear in various frames that compose the videos. The task of segmenting an image becomes more complex when they are composed of objects that are defined by textural features, where the color information alone is not a good descriptor of the image. Fuzzy Segmentation is a region-growing segmentation algorithm that uses affinity functions in order to assign to each element in an image a grade of membership for each object (between 0 and 1). This work presents a modification of the Fuzzy Segmentation algorithm, for the purpose of improving the temporal and spatial complexity. The algorithm was adapted to segmenting color videos, treating them as 3D volume. In order to perform segmentation in videos, conventional color model or a hybrid model obtained by a method for choosing the best channels were used. The Fuzzy Segmentation algorithm was also applied to texture segmentation by using adaptive affinity functions defined for each object texture. Two types of affinity functions were used, one defined using the normal (or Gaussian) probability distribution and the other using the Skew Divergence. This latter, a Kullback-Leibler Divergence variation, is a measure of the difference between two probability distributions. Finally, the algorithm was tested in somes videos and also in texture mosaic images composed by images of the Brodatz album

Contribuição ao estudo das redes complexas: extensão do modelo de afinidade

Neste trabalho, elaboramos e discutimos uma rede complexa sem escala, ou seja, uma rede cuja distribuição de conectividade segue uma lei de distribuição de potência. Nosso trabalho pode ser resumido da seguinte forma: Para efeito de didática vamos começar com redes aleatórias que estão relacionados com situações reais e artificiais, e depois comentar as redes livres de escala, como proposto por Barabási-Albert (BA). Depois disso, discutimos uma extensão deste modelo, onde Barabasi e Bianconi (BB) incluem a qualidade. Discutimos também o modelo de afinidade, ou seja, (Ver Almeida et al). Finalmente vamos mostrar o nosso modelo, uma extensão do modelo de afinidade dada por e apresentar os resultados correspondentes. Para realizar tal tarefa modificamos a regra de ligação preferencial do modelo de BB colocando um fator que apresenta o grau de probabilidade entre os sítios da rede. Esta quantidade é feita pela diferença entre a qualidade do novo sítio e a qualidade dos anteriores. Este novo parâmetro produz novos resultados interessantes: a distribuição que segue uma lei de especial de potência, expoente apropriado. A evolução temporal da conectividade do sítio também é calculada . Além disso, mostramos também, os resultados que foram obtidos, via simulação numérica, para o menor caminho médio e o coeficiente de agregação da rede gerada pelo nosso modelo, isto é, pelo modelo de afinidade.

Braquiópodes (Rhynchonelliformea, Bouchardioidea) neógenos da bacia de Pelotas (RS) e seu significado paleoambiental

The occurrence of brachiopods in Cenozoic rocks of the Pelotas Basin is known since 1862. In spite of that, detailed systematic and taphonomic studies are still missing. Investigations made a half century ago, have suggested that these brachiopods could belong to Bouchardia cf. zitteli, a species found in the San Julian Formation, Late Oligocene, Argentina. Our data suggest that those brachiopods may resemble Bouchardia transplatina. In the Uruguayan portion of the Pelotas Basin B. transplatina is known in rocks of the Camacho Formation, Miocene. In addition, small recrystallized shells of brachiopods were also recovered from three Petrobras boreholes (2PJ-1-RS, 2PN-1-RS, and 2GA-1-RS) from the Pelotas Basin. Brachiopods come from the interval of 130 to 150 meters within the Miocene Henryhowella evax Zone. Despite the degree of taphonomic modiication of those brachiopod shells they indubitably belong to Bouchardia sp. This is noteworthy for various reasons: 1- Bouchardia is a brachiopod with warm water afinities. Presently, extant members of this genus are unknown in latitudes up to 34[degree]S, with the main records at 23[degree]S. 2- Although occurring in depths down to 200 meters, the living member (Bouchardia rosea) of this genus is most abundant in shallow platformal, nutrient-rich waters. 3- The occurrence of Bouchardia in the Miocene of the Pelotas Basin indicates that, at least to the interval of Henryhowella evax Zone, warm waters of the Brazilian currents prevail. This interpretation is in strong accordance with other paleoeoceanographic and paleoclimatic data offered by various groups of co-occurring microfossils, such as ostracodes and foraminifers.

Notas sobre Siegfried Kracauer, Walter Benjamin e a Paris do Segundo Império: pontos de contato

Trata-se de mostrar a originalidade crítica de Siegfried Kracauer diante da experiência da modernidade estética e de discutir as afinidades estético-teóricas de Kracauer e Benjamim ao analisar a Paris da segunda metade do século XIX, o Segundo Império, em particular, como fenômeno originário da sociedade de massas, da indústria cultural e do entretenimento e, sobretudo, do nazi-fascismo. Kracauer durante seu exílio parisiense (1933-41) escreveu uma biografia da sociedade: Jacques Offenbach e a Paris de sua época (Jacques Offenbach und das Paris seiner Zeit). Obra inovadora pelo seu enfoque da história do presente e com pontos de contatos com a Obra das Passagens (Passagen-Werk) ou Paris capital do século XIX de Walter Benjamin.

Cactaceae do Vale do Rio Jequitinhonha (Minas Gerais)

Durante as primeiras coletas relacionadas ao Projeto Cactaceae no Brasil Oriental, ficou provada a grande diversidade de espércies dessa família na região do vale médio do Rio Jequitinhonha, tendo sido visitadas as localidades de Itinga, Itaobim e Pedra Azul. Foram coletadas 21 espécies distribuídas entre os gêneros Pereskia, Opuntia, Tacinga, Pseudoacanthocereus, Arrojadoa, Brasilicereus, Cereus, Coleocephalocereus, Melocactus, Pilosocereus e Selenicereus, representando as três subfamílias de Cactaceae, cujas afinidades taxonômicas e padrões de distribuição geográfica são discutidos a seguir.

Investimento e reformas no Brasil: industria e infra-estructura nos anos 1990

Incluye Bibliografía

A Teoria dos jogos e as ciências sociais

Pós-graduação em Ciências Sociais - FFC

Aportes bibliométricos à produção científica nos principais periódicos da área de Ciência da Informação no Brasil, no período de 2006-2010

Pós-graduação em Ciência da Informação - FFC

O símbolo e a alegoria nos textos teóricos de Goethe [de 1772 a 1798]

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)