Poesia digital: três leituras da Obra de Jason Nelson

The development of digital technologies has opened up a new niche for artistic production. It began to emerge artworks that could only happen in the digital context. In this study, we investigated the syntax of defining digital poetry, recognized internationally as one of the possibilities of this new artistic practice, and how happens the meaning during the reading process. As research corpus, we chose the poem "Birds Still Warm From Flying", by american poet Jason Nelson. And we structure our analysis looking through three perspectives: the digital poem as a game; as the evolution of experimental trends of twentieth-century poetry; and as a representation of Rubik`s Cube, a famous three-dimensional puzzle from the 1970`s. Initially, we made some considerations about the construction of digital poetry as a hypermedia artwork, looking through convergence and hybridization of artistic and media languages. Then, we saw some similarities between Nelson`s poem and electronic games, based on our critical observations about the concept of interactivity. Subsequently, we wrote a historical overview about the poetic experimentation in the twentieth century, bringing examples of sound poetry and visual poetry as evidence that the birth of digital poetry is also the result of the evolution of these experiments. Finally, we use the Charles Sanders Peirce`s semiotics to analyze the signs that give references able to make us recognize the Rubik`s Cube in "Birds Still Warm From Flying"

Sloterdijk e o lugar do homem no humanismo pós-metafísico

This work starts from the principle that the word humanism has been currently used to advocate certain behaviors or ways of acting which had been constituted for more than 2500 years, mainly in what refers to the most basic human values, which are clearly validated without any questioning. Humanism has been seen continually as a stone of civility touch. Thus, in 1999, the philosopher Peter Sloterdijk presented a conference in Baviera entitled Rules for the Human Zoo, whose subtitle was clear that it dealt with an answer to Martin Heidegger s text Letter on Humanism, basically showing that civility is necessarily bound to human domestication. So, the present work is split in three chapters. The first one aims to set the cultural and metaphysical bases of humanism. The second one will adopt an approach about what we will call epistolary humanism and its corollaries. Besides, in the third chapter, we will compose theoretical statements to the Heideggerian criticism against humanism and the post humanist contemporary proposition, as well as about the anthropotechnics. We can state that these two elements are considered as anthropological fundamentals of humanism and post humanism, and by understanding their mentioned historical relationship from their biological and ontological assumptions. Therefore, this work, which has been presented here, when it tries to map humanism under the theoretical influence of Sloterdijk, it distinguishes itself precisely by realizing the coherence with which he aims at diagnosing the directions of the contemporary humanism

Da emergência da personagem social do homosexual à cultura gay: uma leitura a partir de Michel Foucault

This present research aims to understand the concept of homosexuality as a social creation that comes permeated by the discourses of sexuality devices. It discusses the issue of homosexuality with a focus on works of Michel Foucault, in special The History of Sexuality, where the author emphasizes that homosexuality as a social construct that manifests itself during the nineteenth century. From the Foucauldian discourse, it is proposed to understand and analyze the creation of the concept of homosexuality, which is built around the subordination of the individual as a social agent, or the creation of homosexuality does not refer to sexual intercourse between individuals of the same sex, but a social subject and the position it takes in society. So along with the birth of the homosexual individual, there is also the construction of the individual as a social subject, as being, homosexuality and homosexual subject are products of overlapping powerculture. When addressing this theme, it breaks the hegemony that seeks to characterize naturalized of sexuality and, consequently, homosexuality, born with the original speeches on medical and psychiatric couches, in which one perceives the role of power in the discourses deploying the truths aimed at sexuality. With this, there has been an argument that seeks to refute the eugenics that includes sexuality as something natural, instituting a homosexual as a guy born hostage to a bad genetic and abnormal who should be treated for their disease, and understand this individual as a product of social discourse

Dinâmica de tempos curtos aplicado ao modelo de ising diluído por sítio em duas dimensões

Existem vários métodos de simulação para calcular as propriedades críticas de sistemas; neste trabalho utilizamos a dinâmica de tempos curtos, com o intuito de testar a eficiência desta técnica aplicando-a ao modelo de Ising com diluição de sítios. A Dinâmica de tempos curtos em combinação com o método de Monte Carlos verificou que mesmo longe do equilíbrio termodinâmico o sistema já se mostra insensível aos detalhes microscópicos das interações locais e portanto, o seu comportamento universal pode ser estudado ainda no regime de não-equilíbrio, evitando-se o problema do alentecimento crítico ( critical slowing down ) a que sistema em equilíbrio fica submetido quando está na temperatura crítica. O trabalho de Huse e Janssen mostrou um comportamento universal e uma lei de escala nos sistemas críticos fora do equilíbrio e identificou a existência de um novo expoente crítico dinâmico θ, associado ao comportamento anômalo da magnetização. Fazemos uima breve revisão das transições de fase e fenômeno críticos. Descrevemos o modelo de Ising, a técnica de Monte Carlo e por final, a dinâmica de tempos curtos. Aplicamos a dinâmica de tempos curtos para o modelo de Insing ferromagnéticos em uma rede quadrada com diluição de sítios. Calculamos o expoente dinâmicos θ e z, onde verificamos que existe quebra de classe de universilidade com relação às diferentes concentrações de sítios (p=0.70,0.75,0.80,0.85,0.90,0.95,1.00). calculamos também os expoentes estáticos β e v, onde encontramos pequenas variações com a desordem. Finalmente, apresentamos nossas conclusões e possíveis extensões deste trabalho

Fases magnéticas de sistemas nanoestruturados de terras-raras

There is presently a worldwide interest in artificial magnetic systems which guide research activities in universities and companies. Thin films and multilayers have a central role, revealing new magnetic phases which often lead to breakthroughs and new technology standards, never thought otherwise. Surface and confinement effects cause large impact in the magnetic phases of magnetic materials with bulk spatially periodic patterns. New magnetic phases are expected to form in thin film thicknesses comparable to the length of the intrinsic bulk magnetic unit cell. Helimagnetic materials are prototypes in this respect, since the bulk magnetic phases consist in periodic patterns with the length of the helical pitch. In this thesis we study the magnetic phases of thin rare-earth films, with surfaces oriented along the (002) direction. The thesis includes the investigation of the magnetic phases of thin Dy and Ho films, as well as the thermal hysteresis cycles of Dy thin films. The investigation of the thermal hysteresis cycles of thin Dy films has been done in collaboration with the Laboratory of Magnetic Materials of the University of Texas, at Arlington. The theoretical modeling is based on a self-consistent theory developed by the Group of Magnetism of UFRN. Contributions from the first and second neighbors exchange energy, from the anisotropy energy and the Zeeman energy are calculated in a set of nonequivalent magnetic ions, and the equilibrium magnetic phases, from the Curie temperature up to the Nèel temperature, are determined in a self-consistent manner, resulting in a vanishing torque in the magnetic ions at all planes across the thin film. Our results reproduce the known isothermal and iso-field curves of bulk Dy and Ho, and the known spin-slip phases of Ho, and indicate that: (i) the confinement in thin films leads to a new magnetic phase, with alternate helicity, which leads to the measured thermal hysteresis of Dy ultrathin films, with thicknesses ranging from 4 nm to 16 nm; (ii) thin Dy films have anisotropy dominated surface lock-in phases, with alignment of surface spins along the anisotropy easy axis directions, similar to the known spin-slip phases of Ho ( which form in the bulk and are commensurate to the crystal lattice); and (iii) the confinement in thin films change considerably the spin-slip patterns of Ho.

Pareamento BCS em um Líquido de Luttinger em 1D

In this work we investigate the effect of a BCS-type pairing term for free spinless fermions, with a propensity to form a condensate of pairs in a 1+1 dimension. Using the of bosonization technique we explore the possible condition of existence of quasiparticles in a superconducting state. Although there is no spontaneous breaking of chiral symmetry the propagator of one-particle fermion is massive and, in fact, resembles the one-particle Green s function of conventional quasiparticles

Efeitos de acoplamentos biquadráticos e campos aleatórios em vidros de spins

In this work we have studied the effects of random biquadratic and random fields in spin-glass models using the replica method. The effect of a random biquadratic coupling was studied in two spin-1 spin-glass models: in one case the interactions occur between pairs of spins, whereas in the second one the interactions occur between p spins and the limit p > oo is considered. Both couplings (spin glass and biquadratic) have zero-mean Gaussian probability distributions. In the first model, the replica-symmetric assumption reveals that the system presents two pha¬ses, namely, paramagnetic and spin-glass, separated by a continuous transition line. The stability analysis of the replica-symmetric solution yields, besides the usual instability associated with the spin-glass ordering, a new phase due to the random biquadratic cou¬plings between the spins. For the case p oo, the replica-symmetric assumption yields again only two phases, namely, paramagnetic and quadrupolar. In both these phases the spin-glass parameter is zero. Besides, it is shown that they are stable under the Almeida-Thouless stability analysis. One of them presents negative entropy at low temperatures. We developed one step of replica simmetry breaking and noticed that a new phase, the biquadratic glass phase, emerge. In this way we have obtained the correct phase diagram, with.three first-order transition lines. These lines merges in a common triple point. The effects of random fields were studied in the Sherrington-Kirkpatrick model consi¬dered in the presence of an external random magnetic field following a trimodal distribu¬tion {P{hi) = p+S(hi - h0) +Po${hi) +pS(hi + h0))- It is shown that the border of the ferromagnetic phase may present, for conveniently chosen values of p0 and hQ, first-order phase transitions, as well as tricritical points at finite temperatures. It is verified that the first-order phase transitions are directly related to the dilution in the fields: the extensions of these transitions are reduced for increasing values of po- In fact, the threshold value pg, above which all phase transitions are continuous, is calculated analytically. The stability analysis of the replica-symmetric solution is performed and the regions of validity of such a solution are identified

Vidros de spins de Ashkin-Teller com interações entre p-spins

Conselho Nacional de Desenvolvimento Científico e Tecnológico

Um estudo do vidro de Spins Planar Misto

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior

Análise da genotoxicidade das águas da Lagoa da Extremoz - RN

The contamination of the waters resources for wastewater from industrial, agricultural, and domestic sources is a serious environment problem, compromising its use for human consumption and agriculture. The Extremoz-RN Lake is an important freshwater source for the supply of the city of Natal, supplying a population of approximately 160,000 habitants. This aquatic body is located near an industrial pole which can be a serious risk factor for quality of its waters. The objectives of this study were examined the genotoxicity of Extremoz Lake between September of 2006 and January of 2008, by a combination of the Allium micronucleus test, piscine micronucleus test and the comet assay in erythrocytes from peripheral blood of Oreochromis niloticus. Additionally, the level of eight different heavy metals was quantified through spectrometry of atomic absorption of flame. The Allium test did not detect increase in the frequencies of micronucleus in none of the analyzed periods, however a strong cytotoxic activity was demonstrated for decrease in mitotic index in the analyses carried in April and July of 2007. Negative results had been detected in the frequencies of micronucleus in O. niloticus. A statistic significant increase was observed in the levels of DNA damage in comet assay carried in July of 2007. The results of the chemical analysis had detected increase in the levels of cadmium, chromium, copper, nickel, lead and zinc in different periods. These results demonstrated an alteration of the water s quality of the Extremoz Lake caused for the contamination for heavy metals and increase of DNA strand breaks. The use of biomonitoring program of the heavy metal and other pollutants with genotoxic potential combinated with genotoxicity assays is recommends.

Quem nasce em campina grande é campinense : futebol e sociabilidade na rainha da borborema (1954-1965)

This study aims to historicize a problem: How Campinense Club, club social of the city of Campina Grande, became a popular club? This guild was founded in 1915 by a group of graduates, which they called "Campinense" a social club dedicated to the enjoyment of the city's elites. To investigate the mechanisms that have led to this popularity, was chosen that includes a period from 1954 to 1965, when it was created a department where the professional football club won a string of six consecutive championships, considered the main achievement of its history sports. Were used as research sources Borborema the Journal, a newspaper founded in 1957 and that during the period in question, was the spokesman of the main political groups in the city, which on many occasions were the sponsors of the clubs the same. This newspaper had a daily sports column and introduced the red-black team to Paraíba. Were used, although the club's meeting minutes taken as official documents, which allowed it to be mounted on a puzzle of the club's events, since the information about the Campinense present rather fragmented. Finally, respondents were fans, athletes and leaders who, through his lines in a way pointed out other possibilities such as a club, believed to be aristocratic, has become a passion among the fans, giving rise to this conception to be one that Campinense broke with the established elites of the city.

"Espaços (mal) ditos": representações dos bordéis Mossoroenses nas décadas de 1950 e 1960

The city that presents itself to our eyes is not just made of stone. The urban layout hides the tactics of the subjects who subjectivate spaces, giving it meaning through the representations that it produces, whether written or oral. The city's art, is represented, is home to the place where the good and bad places. The aim of this study is to analyze the representations about the spaces occupied by mossoroenses brothels in the 1950 and 1960. With this goal we organize the work into three chapters. At first, we present the formation of red-light district in the city, highlighting the composition of the bohemian spaces in good and bad places. In the second chapter we discuss how the representations developed by the newspaper O Mossoroense created a space damn for identifying the area as a place of crime and misdemeanor. In the last chapter we seek to identify and reconstruct the residents of Mossoró, in contemporary times, their memories about the peak time of the brothels in the city. In oral narratives seek to understand how people describe the places of the brothel, comparing the spatiality of the past with this experienced in the city. Therefore, we discuss how these spaces have been turned into places of pleasure and a curse, as places become common in places marked morally.

O reino encantado do sertão: uma crítica da produção e do fechamento da representação do sertão no romance de Ariano Suassuna

Based on the relation history, literature and space, this work examines the production and the closing of the representation of the hinterland in the Romance d A Pedra do Reino of the paraiban writer Ariano Suassuna. Inspired by method proposed by deconstructionist by Jacques Derrida, our reflection decomposes the writing scene of Suassuna by means of it s tracks to interpret the operation of the representation of the space-hinterland for the speech of the writer. Being thus, we present the elements chosen for Suassuna to weave an identification it s with this space-hinterland, taking a priori as a sentimental place and of familiar origin . The construction of this relation of belonging in great is measured grounded for a familiar memory entangled in the context politician who culminated in the Revolution of 1930 and that he resulted for the writer in the death of father. Suassuna launches a look on the identity and the Brazilian culture that guided in the tradition concept it searchs to deny the gift grounding its speech in the return to the past, a past order . Specifically in it s romance we notice to exist the fusing of these tracks in the production of a representation of the hinterland that it intends to close a concept of this space and its culture. Soon, the idea of kingdom sends to the space of the enchantments manufactured in infancy and retaken by the intellectual radical who in the anxiety of honor the father figure, does not save efforts in constructing a space representation that, over all, either faithful the representation that it searchs to trace of proper itself. Under one it marks of universality , the hinterland-kingdom of Suassuna if discloses eurocentric in the measure where it perpetuates discurse the filiation of the European cultural traditions.

Jardim do Seridó: A construção dos espaços públicos na Veneza Seridoense nas primeiras décadas do século XX

As the space and the city are objects of desires, interests, seduction, sedition, appropriations, battles, victories, defeats, require to be analyzed historically. This research investigates and discusses the construction of public spaces in Jardim do Seridó City, backwoods of Rio Rio Grande do Norte, in the first decades of twentieth century, when the municipality was chaired by Heráclio Pires Fernandes, who ruled from 1917 to 1930 and was graduated from the University of Pharmacy of Recife, where he contacted the architectural, political and artistic influences circulating in the capital of Pernambuco. In the first decades of the twentieth century, the space of Jardim earns statements and practices, against the discourse of modernity, which sought to justify the title of Veneza Seridoense . At the time, the city had undergone several transformations in its public spaces through the construction of the Butchery, the Market, the Public Roads connecting the city to other urban centers, the building of the Bridge of the Pedra Lavrada Farm, the Elementary School Antônio de Azevedo , the creation of the Music Band Euterpe Jardinense , the Literary and Recreative Guild, the pavilion, the paving, tree planting, lighting, streets naming and listing of the annual painting of households, the arrival of automobiles, mail and telegraph. The construction of these new sceneries and the arrival of equipments generated impacts in the daily life of the population and were received differentiated ways by individuals involved in the process, which shows the tension between old and new, the relationship between history and space

Uso de ferramentas por macacos-prego em manguezais

The present study discusses the geographical distribution and the context on the occupation of mangrove swamp areas by capuchin monkeys. In addition, we assess how the dispersion to the mangrove allowed the exploration of different food items, permitting the development of predation by ambush and the use of cracking tools. From 2004 to 2008 we surveyed the main estuaries of Brazilian Amazon coast, from northeastern state of Pará to the eastern boundary of the state of Maranhão, and recorded the presence of two species of capuchin monkeys in the mangrove forest areas. Cebus apella has been widely distributed in the mangrove at the estuaries examined (excluding C. libidinosus areas). Its presence is often related to Amazon forest remnants in the neighbourhood of the mangrove swamps and thus it is possible that some groups live in both kinds of habitats. However, we recorded some populations restricted only to mangrove swamp surrounded by open areas. On the other hand, Cebus libidinosus had a distribution more restricted and isolated in mangroves. Its pattern of habitat use is consistent with geographic distribution in mangrove patches. It seems that the possible contact zone previously proposed in the literature for that two species has no evident barriers in the mangrove. Furthermore, we record cracking sites and systematic observations on the tool use, carnivory and predation by ambush in Cebus libidinosus from 2006 to 2008. Cebus libidinosus is the only Neotropical primate species in which the tool use has been systematically recorded in nature. However all previous studies had been obtained is open areas (Cerrado and Caatinga). Thus, the present study is first one to report that behaviour in forested habitats in which the tool use to cracking by capuchin monkeys is associated with the consumption of meat. In the Caatinga and Cerrado, food shortages and terrestriality has been proposed by different authors to explain the evolution of tool use in primates. Here, we analyzed the relative contribution of these two variables as selective pressures for the tool use by capuchin monkeys in the mangrove forests, an ecological scenario in which food resources is available around the year and terrestriality is limited by structural habitat features, as the presence of stilt roots and muddy soil