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Search Results: 1 - 10 of 76636 matches for " da Silva Pinheiro "
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Li??o crítica: Roland Barthes e a semiologia do impasse
Silva, Marcio Renato Pinheiro da;
Alea : Estudos Neolatinos , 2005, DOI: 10.1590/S1517-106X2005000100005
Abstract: considering that semiology is the science which studies the signification at society, this paper investigates, firstly, a probable social function of such a science, mainly, according to roland barthes' work. secondly, it is considered that the link between this function and the systematic study of signification checkmates semiology, what roland barthes itself realizes, dealing with it critically.
Má oclus?o Classe I de Angle tratada com extra??es de primeiros molares permanentes
Silva, Ivan Tadeu Pinheiro da;
Dental Press Journal of Orthodontics , 2010, DOI: 10.1590/S2176-94512010000400018
Abstract: angle class i malocclusion is characterized by normal anteroposterior molar relationship, which may or may not be accompanied by skeletal changes-in the vertical or transverse planes-or dental changes. bimaxillary dental protrusion, characterized by pronounced labial inclination of maxillary and mandibular incisors combined with excessive overjet, expose patients to dental trauma and compromise aesthetics. in deciding which teeth to extract for class i correction the first or second premolars are usually selected due to their location in the dental arch. however, the extraction of a first permanent molar compromised by caries or extensive restoration may be an alternative that ensures the preservation of a healthy tooth instead of one that has already been manipulated. this case, treated in an unusual manner by the extraction of four first permanent molars, was presented to the brazilian board of orthodontics and dentofacial orthopedics (bbo) as representative of category 2, as part of the requirements for obtaining the bbo diplomate title.
Simulacro e negatividade: a intertextualidade de Em Busca de Curitiba Perdida, de Dalton Trevisan = Simulacrum and negativity: the intertextuality on Dalton Trevisan’s Em Busca de Curitiba Perdida (Searching for Lost Curitiba )
Marcio Renato Pinheiro da Silva
Acta Scientiarum : Human and Social Sciences , 2006,
Abstract: Os fen menos culturais contemporaneos/pós -modernos caracterizam-se, freqüentemente, pelo diálogo ir nico e lúdico (intertextualidade) com a cultura passada e presente e pela problematiza o de proje es em rela o ao futuro. Tais caracteres, n o raro, configuram simulacros e/ou hiper-realidades, representa es despojadas de referencialidadecujos temas s o, muitas vezes, relativos às próprias representa es. Nesse sentido, é notável o conto Em Busca de Curitiba Perdida , do paranaense Dalton Trevisan: por meio da intertextualidade com o roman-fleuve Em Busca do Tempo Perdido (à La Recherche du Temps Perdu ), dofrancês Marcel Proust, o texto de Trevisan coloca em xeque a utopia proustiana de uni o entre arte e vida, criando um simulacro cuja viabilidade se dá, paradoxalmente, por meio de sua própria impotência. The contemporary/postmodern cultural phenomena are usually characterized by the ironic and playful relationship (intertextuality) with the past and present cultures and by denying future planning. These aspects configure simulacra/hyper -realities, representations free from referential reality whose themes are, many times, linked to repres entation itself. On such aspects, the short story Em Busca de Curitiba Perdida (Searching of Lost Curitiba ), by the Brazilian writer Dalton Trevisan , is notable: by means of its intertextuality with the romanfleuve à La Recherche du Temps Perdu (Searching for Lost Time), by the French writer Marcel Proust, Trevisan’s text questions Proust’s utopist union between art and life, creating a simulacrum whose base is, paradoxically, its own i mpotence.
Classifica o em cores: uma metodologia inovadora na organiza o das bibliotecas escolares do município de Rondonópolis-MT / Colors classification: an innovative methodology to help out the organization of school libraries in the city of Rondonópolis, Mato Grosso State, Brazil
Mariza Inês da Silva Pinheiro
Revista Digital de Biblioteconomia e Ciência da Informa??o , 2009,
Abstract: Aborda uma metodologia diferenciada e muito pouco aplicada no Brasil que é a classifica o em cores nas bibliotecas escolares, elaborada pela autora deste artigo. Esta iniciativa se realizou através de convênio entre o curso de Biblioteconomia da Universidade Federal de Mato Grosso - Campus Rondonópolis e a Prefeitura local; vinte acadêmicos do curso estagiam a cada ano com a coordenadora, professora Mariza Inês da Silva Pinheiro, com o objetivo de proporcionar aos alunos de cada escola do município o acesso às obras com maior rapidez e precis o, em prol do gosto pela leitura. Mostra-se a importancia da classifica o em cores e o papel do bibliotecário escolar. Verificou-se, enfim, que este trabalho tornou-se gratificante para todos os envolvidos no processo.
Dinamica espa?o-temporal (1962-2006) das fitofisionomias em unidade de conserva??o do Cerrado no sudeste do Brasil
Pinheiro, Eduardo Da Silva;Durigan, Giselda;
Brazilian Journal of Botany , 2009, DOI: 10.1590/S0100-84042009000300005
Abstract: recent studies indicate that after protection from human pressures (fire, cattle grazing and agriculture), structural changes occur in the cerrado vegetation, changing open physiognomies into more closed savannas. we analyzed the dynamics of vegetation types along 44 years, at assis ecological station, one of the rare conservation units protecting the cerrado biome in the southeastern s?o paulo state, brazil, with the aim of characterizing and quantifying those changes in space and time. protected against human pressures since a long time, field observations have shown an upgrade of local cerrado physiognomies, through a successional process whose structural climax can be a forest physiognomy, with a continuous arboreal stratum. the dynamics of the vegetation types was analyzed by using aerial photographs (1962, 1984 and 1994), quick bird satellite images (2006) and field surveys. during this 44 years period, field physiognomies were reduced from 23% to less than 1% of the total area studied. in the other extreme, woodland savanna increased from 53% to 91% of the area. changes did not happen at the same rhythm across the area, and that is apparently correlated to microclimate and edaphyc differences. we believe that field and savannic physiognomies initially existing were mostly maintained due to heavy human pressures, constraining the secondary succession towards an edapho-climatic climax of greater biomass. confirming the observations of cerrado areas elsewhere, protection against fire, cattle grazing and agriculture allowed the evolution of open vegetation types into more closed ones, tending to be locally extinct the first if new disturbances do not occur. consequences of these changes related to management strategies, biodiversity conservation and carbon sink are discussed.
O desflorestamento ao longo da rodovia BR-174 (Manaus/AM - Boa Vista/RR)
Rodrigues, Eduardo Paschoal;Pinheiro, Eduardo da Silva;
Sociedade & Natureza , 2011, DOI: 10.1590/S1982-45132011000300011
Abstract: researches indicate that deforestation in the amazon is associated with roads constructions, because it favors the migration and therefore the land occupation and wood exploitation. the br-174 road was built in the 1970s and it was totally paved in 1997. this paper presents the analysis of spatial and temporal change of deforestation in the br-174 road surroundings (20 km) for a period of 30 years (1978-2008). we used landsat satellite images, inpe/prodes data, fieldwork, cartographic and economic data. the results showed a high growth of deforestation rate, from 622.15 km2 in 1978 to 2618.58 km2 in 2008. agriculture and cattle rising are the most common economic activities in the cities crossed by the br-174 road, except manaus, and nowadays it occurs on areas which were previously coverer by forest. in manaus the deforestation process occurs mainly associated with urban growth. although the construction of br-174 is related to deforestation processes, the road has a great importance in the region because it turns into possible the connection between the two capitals (manaus/am and boa vista/rr), and it allowed the creation of new communities with their social and economic activities. sustainable development projects will be the challenge for local governments, in order to add value to existing projects and develop new models for the land use in the region.
Diferen?as florísticas e estruturais entre fitofisionomias do cerrado em Assis, SP, Brasil
Pinheiro, Eduardo da Silva;Durigan, Giselda;
Revista árvore , 2012, DOI: 10.1590/S0100-67622012000100019
Abstract: classification of physiognomies is a challenge for many cerrado vegetation researches either because there are no clear floristic and quantitative criteria for its classification and because the changes it had over come over the years. the objective of this study was to charactherize three phytophysiognomies types in the cerradovegetation (brazilian savannah) in the esta??o ecológica de assis as well as to verify if they are floristically or structurally disticnts searching for better variables to classify them. the sample consisted of 30 permanent plots with 20 × 50 m, being 10 plots for each one of the physiognomy types: typical cerrado, dense cerrado and cerrad?o, where trees with diameter at breast height > 5 cm. the three studied phytophysiognomies were structuraly distintics in terms of basal area, canopy cover, and average height and diameter of the tallest trees. basal area (m2 ha-1) was considered the best descriptor to classify the physiognomies of the cerrado vegetation because it is to easy measure and less variable with the inclusion criteria. in terms of floristic composition, savannah phytophysiognomies (typical cerrado and woodland cerrado) are not different from each other either by analyzing only the presence and absence of species or by analyzing the relative importance of the species in the community. briefily, there are three distinct phytophysiognomies but the flora is different only between woodland cerrado and savannah phytophysiognomies. by analyzing the exclusive species of each physiognomy in relation to tolerance shade tolerance, it was suggested based in the literature that the low light availability under the canopies in the woodland cerrado might have been the conditioning factor of the differentiation between it and the other cerrado physiognomies.
O desflorestamento ao longo da rodovia BR-174 (Manaus/Am - Boa Vista/Rr) / The deforestation along the BR-174 road (Manaus / Am - Boa Vista / Rr)
Eduardo Paschoal Rodrigues,,Eduardo da Silva Pinheiro
Revista Sociedade & Natureza , 2011,
Abstract: Pesquisas indicam que o processo de desflorestamento na Amaz nia está associado à abertura de estradas, uma vez que favorece o fluxo migratório, a ocupa o de terras e a explora o de madeiras. O objetivo deste trabalho foi analisar o desflorestamento no entorno (20 km) da rodovia BR-174 para um período de 30 anos (1978-2008). Foram utilizadas imagens LANDSAT, dados do INPE/PRODES, dados cartográficos e econ micos e trabalhos de campo. Os resultados demonstraram um crescimento do desflorestamento, passando de 622,15 km2 em 1978 para 2.618,58 km2 em 2008. As principais atividades econ micas dos municípios por onde passa a BR-174, exceto Manaus, est o associadas à agropecuária. Em Manaus, o desflorestamento ocorre principalmente na área urbana. Ainda que a constru o da BR-174 esteja associada a processos de desflorestamento, a rodovia possui grande importancia para a regi o, pois foi responsável pela liga o terrestre entre duas capitais do norte do país (Manaus/AM e Boa Vista/RR) e possibilitou formar comunidades onde s o desenvolvidas atividades econ micas e sociais. A cria o de projetos de desenvolvimento sustentável é o grande desafio dos governos locais, para agregar valor aos empreendimentos existentes e desenvolver novos modelos de uso e ocupa o na regi o.
DENS INVAGINATUS BILATERAL EM PRIMEIRO MOLAR MANDIBULAR EM C O
Marcello Rodrigues da Roza,Floriano Pinheiro Silva
Ciência Animal Brasileira , 2006,
Abstract: Atendeu-se a uma cadela da ra a maltês, de quatro anos de idade, com queixa de mau hálito e presen a de tártaros. à anamnese relatou-se que o animal havia sido submetida anteriormente a três procedimentos de tratamento periodontal, sempre sem a necessidade de anestesia. Submetida à anestesia geral, a cadela foi clinicamente examinada, evidenciando-se a presen a de les o degenerativa na face vestibular dos primeiros molares mandibulares esquerdo e direito, que após exame radiológico diagnosticou-se como Dens invaginatus. Observou-se altera o da morfologia dentária dos dentes envolvidos, evidenciada radiograficamente como áreas radiopacas, demonstrando altera o da morfologia do canal em ambos os elementos e reabsor o da raiz distal do primeiro pré-molar inferior direito. PALAVRAS-CHAVE: Dens invaginatus, dens in dente, exodontia.
A New Formulation to the Point Kinetics Equations Considering the Time Variation of the Neutron Currents  [PDF]
Anderson Lupo Nunes, Aquilino Senra Martinez, Fernando Carvalho da Silva, Daniel Artur Pinheiro Palma
World Journal of Nuclear Science and Technology (WJNST) , 2015, DOI: 10.4236/wjnst.2015.51006
Abstract: The system of point kinetics equations describes the time behaviour of a nuclear reactor, assuming that, during the transient, the spatial form of the flux of neutrons varies very little. This system has been largely used in the analysis of transients, where the numerical solutions of the equations are limited by the stiffness problem that results from the different time scales of the instantaneous and delayed neutrons. Its derivation can be done directly from the neutron transport equation, from the neutron diffusion equation or through a heuristics procedure. All of them lead to the same functional form of the system of differential equations for point kinetics, but with different coefficients. However, the solution of the neutron transport equation is of little practical use as it requires the change of the existent core design systems, as used to calculate the design of the cores of nuclear reactors for different operating cycles. Several approximations can be made for the said derivation. One of them consists of disregarding the time derivative for neutron density in comparison with the remaining terms of the equation resulting from the P1 approximation of the transport equation. In this paper, we consider that the time derivative for neutron current density is not negligible in the P1 equation. Thus being, we obtained a new system of equations of point kinetics that we named as modified. The innovation of the method presented in the manuscript consists in adopting arising from the P1 equations, without neglecting the derivative of the current neutrons, to derive the modified point kinetics equations instead of adopting the Fick’s law which results in the classic point kinetics equations. The results of the comparison between the point kinetics equations, modified and classical, indicate that the time derivative for the neutron current density should not be disregarded in several of transient analysis situations.
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