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Search Results: 1 - 10 of 23089 matches for " Izabella Costa Araujo "
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Pilomatricoma: epitelioma calcificado de Malherbe Pilomatricoma: calcifying epithelioma of Malherbe
Rebeca Paohwa Liu da Fonseca,José de Souza Andrade Filho,Izabella Costa Araujo,Aloísio Ferreira da Silva Filho
Revista Brasileira de Cirurgia Plástica , 2012,
Abstract: INTRODU O: Pilomatricoma (epitelioma calcificante de Malherbe) representa cerca de 1% dos tumores benignos de pele. O objetivo deste estudo retrospectivo é rever as características clínicas e histopatológicas dessa les o em pacientes tratados nos Departamentos de Cirurgia Plástica e Anatomia Patológica de um hospital geral. MéTODO: Dados relacionados a 68 les es, presentes em 56 pacientes, foram revisados. Todos os pacientes foram submetidos a excis o cirúrgica dos tumores. Os seguintes aspectos foram estudados: gênero, idade, localiza o e tamanho das les es, diagnóstico pré-operatório, recorrência e características peculiares à histopatologia. RESULTADOS: Trinta e um pacientes eram do sexo masculino (55,4%) e 25, do feminino (44,6%). As les es estavam localizadas na face (42,4%), membros superiores (19,7%), tronco (13,6%), membros inferiores (12,1%), pesco o (9,1%) e couro cabeludo (3,1%). Em um paciente, foi observada recorrência após o primeiro tratamento cirúrgico. Outra paciente apresentou les es em vários locais, em cinco ocasi es diferentes. Um terceiro paciente teve o diagnóstico de pilomatricoma proliferante. Todos os tumores eram benignos. O diagnóstico clínico de pilomatricoma foi realizado pelo cirurgi o em apenas 19,7% dos casos. CONCLUS ES: Pilomatricomas devem ser considerados no diagnóstico diferencial, especialmente dos nódulos de cabe a e pesco o. Exame clínico cuidadoso e conhecimento da les o favorecem o diagnóstico preciso e, portanto, o tratamento adequado. BACKGROUND: Pilomatricoma (calcifying epithelioma of Malherbe) represents approximately 1% of all benign skin tumors. The aim of this retrospective study was to review the clinical and histopathological characteristics of this lesion in patients presenting to the Departments of Plastic Surgery and Pathology of a general hospital. METHODS: Data regarding 68 lesions in 56 patients were reviewed. All patients underwent surgical excision of the tumors. The medical records were reviewed for gender, age, lesion location and size, preoperative diagnosis, recurrence, and particular histopathological characteristics. RESULTS: Thirty-one patients (55.4%) were male and 25 (44.6) female. The lesions were distributed in the face (42.4%), upper limbs (19.7%), trunk (13.6%), lower limbs (12.1%), neck (9.1%), and scalp (3.1%). In one patient, the condition recurred following the first surgical treatment. Another patient had multiple presentation of her lesions, that appeared in several locations and five different occasions. A third patient was diagnosed with proliferating pilomatricoma. All
Travelling Waves in Space-Fractional Nonlinear Diffusion with Linear Convection  [PDF]
Felix Silva Costa, Marta Raquel Araujo Pereira
Journal of Applied Mathematics and Physics (JAMP) , 2017, DOI: 10.4236/jamp.2017.52041
Abstract: In this paper we investigate anomalous diffusion coupled with linear convection, using fractional calculus to describe the anomalous associated memory effects in diffusive term. We get an explicit travelling wave solution, wavefront, with finite propagation. We comment the properties of the solution, including the stationary case.
ENVIRONMENTAL MANAGEMENT OF ELECTRICAL ENERGY SYSTEMS: PROBLEMS AND PERSPECTIVES
Francisco José Costa Araujo
Ingeniería Industrial , 2001,
Abstract: En la pasada década, el modelo de desarrollo brasile o fue caracterizado por el crecimiento económico a través de una fuerte industrialización. Una de las principales estrategias del gobierno en ese período, consistió en proveer la necesaria infraestructura a la actividad industrial, principalmente en los sectores del transporte, telecomunicaciones y energía. Los sistemas de transmisión tuvieron una parte fundamental en ese proceso, como elementos distribuidores de electricidad para la atención de necesidades de la industria y la urbanización. Atenuar los eventuales efectos medioambientales y sociales negativos de empresas del sector eléctrico, constituye ahora algo concerniente al gobierno, como lo indica la demanda legal de la evaluación del impacto medioambiental (EIM) para el cumplimiento de este tipo de actividad. Abstract In the last decades, the model of brazilian development was characterized by the economic growth through a fast industrialization. One of the main government strategies, in that period, consisted on the supply of necessary infrastructure to the industrial activity, mainly in the transport sections, telecommunication and energy. The transmission systems had a fundamental part in that process, as elements distributors of electricity for the attending to the needs of the industry and the urbanization. The attenuation of the eventual environmental effects and social negatives of enterprises of the electric section are constituted, now, in a government concern, as it indicates the legal demand of the environmental impact assessment (EIA) for the accomplishment of this type activity
O figurino como elemento essencial da narrativa
Costa, Francisco Araujo da
Sess?es do Imaginário , 2002,
Abstract: O Figurino - também chamado vestuário ou guarda-roupa - é composto por todas as roupas e os acessórios dos personagens, projetados e/ou escolhidos pelo figurinista, de acordo com as necessidades do roteiro e da dire o do filme e as possibilidades do or amento. O vestuário ajuda a definir o local onde se passa a narrativa, o tempo histórico e a atmosfera pretendida, além de ajudar a definir características dos personagens.
A modified Yamabe invariant and a Hopf conjecture
Ezio Araujo Costa
Mathematics , 2012,
Abstract: In this paper we define the bi-orthogonal sectional curvature and we present two modified Yamabe invariants for compact 4-dimensional manifolds. In particular we obtained a relationship between one of these invariants and a Hopf conjecture.
The scalar curvature and the biorthogonal curvature: A pinching problem
Ezio Araujo Costa
Mathematics , 2012,
Abstract: The famous pinching problem says that on a compact simply connected $n$-manifold if its sectional curvature satisfies $K_{min} > (1/4)K_{max} > 0$, then the manifold is homeomorphic to the sphere. In [8, problem 12], S. T. Yau proposed the following problem: If we replace $K_{max}$ by the scalar curvature, can we deduce similar pinching theorems? In our present note we give an answer to this question in dimension $n = 4.$}
Compact 4-manifolds with harmonic Weyl tensor and nonnegative biorthogonal curvature
Ezio Araujo Costa
Mathematics , 2015,
Abstract: In this note we classify compact 4-manifolds with harmonic Weyl tensor and nonnegative biorthogonal curvature
Papilionoideae (Leguminosae) arbóreas e lianas na esta??o de pesquisa, treinamento e educa??o ambiental (EPTEA), Mata do Paraíso, Vi?osa, Zona da Mata Mineira
Rodrigues, Izabella Martins da Costa;Garcia, Flávia Cristina Pinto;
Revista árvore , 2007, DOI: 10.1590/S0100-67622007000300018
Abstract: this work is a floristic survey of trees and lianas of the papilionoideae in the mata do paraíso, an important fragment of submontane semideciduous seasonal forest, in vi?osa, zona da mata mineira. the fieldwork was carried out through visits to the studied area, from july/2004 to august/2005. twelve taxa represented by eight genera were recorded. machaerium pers. (4spp.) and dalbergia l. f. (2 spp.) were the most representatives. identification keys, descriptions and illustrations are presented for the analyzed taxa. dalbergia nigra (vell.) allem?o ex benth., vulnerable species and, ormosia vicosana rudd, endemic for the region were found at eptea.
A??o do oxigenio sob press?o sobre a a??o patogenica dos germens anaerobios
Pacheco, Genesio;Costa, Gobert Araujo;
Memórias do Instituto Oswaldo Cruz , 1940, DOI: 10.1590/S0074-02761940000200002
Abstract: 1) o2 under pressure reduces the infectiosity of anaerobic bacteria. 2) this action of o2 is increased with the lengthening of the time of exposure of the bacterial suspensions to the gas. 30 the reduction in infectivity is due to the death of the greater part of the bacteria submitted to the action of the o2.
A capacidade sulfidrigena (produ??o de H2S) é uma propriedade geral das bacterias heterotroficas
Pacheco, Genesio;Costa, Gobert Araujo;
Memórias do Instituto Oswaldo Cruz , 1940, DOI: 10.1590/S0074-02761940000200011
Abstract: research on the production of h2s by various species of the majority of the genuses of heterotrophic bacteria was carried out using a liverspleen medium with the bismuth indicator lately proposed by authors. 2) all bacterium species submitted to test on this medium were found capable of decomposing the sulphur compounds in the culture medium with the production of h2s. 3) it was found that all the heterotrophic bacteria produce h2s. 4) there were variations in the amounts produced by different strains of the same species, by different species of the same genus and by different genuses, calculatedby the greater or lesser darkening of the bismuth indicator. 5) there were also differences between the specimens tested as to the time taken for the production of h2s. 6) the expression < sulphydrigenous power > is proposed to designate the propertie of h2s production by bacteria.
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