A new clinical sign probably associated to left hemiplegia with left hemineglect syndrome: the crossed legs

Objetivo : Descrever um novo sinal clínico associado à síndrome de negligência unilateral (SNU) em pacientes com acidente vascular cerebral isquêmico (AVCi). Método : Em 150 pacientes com acidente vascular cerebral isquêmico, foram realizadas tomografias de crânio e aplicada a National Institute of Health Stroke Scale. Aqueles pacientes com lesões vasculares à direita, hemiplegia esquerda e perna direita persistentemente cruzada sobre a esquerda, foram submetidos a testes específicos para SNU. Trinta pacientes também com lesões vasculares à direita, hemiplegia esquerda, porém sem evidências de permanecerem com as pernas cruzadas, foram submetidos aos mesmos testes clínicos. Resultados : Entre 150 pacientes com AVCi, 9 apresentaram lesão vascular cerebral à direita, hemiplegia esquerda e tendência em permanecer com a perna direita cruzada sobre a esquerda. Em 8 deles, testes específicos realizados nos primeiros dias de internação, confirmaram SNU à esquerda. Um paciente morreu antes que os testes pudessem ser aplicados. Dos 30 pacientes que não cruzaram as pernas, os testes foram normais em 20. Dez pacientes apresentaram alterações mínimas, insuficientes para o diagnóstico de SNU. Conclusão : A perna direita cruzada sobre a esquerda pode representar um novo sinal semiológico associado à hemiplegia esquerda e SNU à esquerda.

Syndrome in Question

A 48-year-old male patient with chronic alcoholism presented with a soft, bulky, asymptomatic, and slow-growing mass in the posterior region of the neck, as well as nodules in the deltoid region and posterior triangle of the sternocleidomastoid muscle. Needle aspiration confirmed the diagnosis of lipoma. Multiple symmetric lipomatosis (Madelung's disease) is a rare proliferation of adipocytes, of unknown etiology, most common in middle-aged men and mainly associated with alcoholism. It predominantly affects the neck and upper trunk, causing compressive symptoms or a imparting a pseudoathletic appearance. Surgical resection or liposuction is the most effective treatment, despite frequent recurrence.

Funções trigonométricas

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Espécies metalo-supramoleculares discretas polinucleares: sínteses e caracterização

Pós-graduação em Química - IQ

O número de ouro no ensino da matemática na educação básica

Pós-graduação em Matemática em Rede Nacional - IBILCE

Alternative transfer to the Earth-Moon Lagrangian points L4 and L5 using lunar gravity assist

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Population Structure and Pathotype Diversity of the Wheat Blast Pathogen Magnaporthe oryzae 25 Years After Its Emergence in Brazil

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Impact of Quantity of Resin, C-factor, and Geometry on Resin Composite Polymerization Shrinkage Stress in Class V Restorations

Objective: This study evaluated the effect of quantity of resin composite, C-factor, and geometry in Class V restorations on shrinkage stress after bulk fill insertion of resin using two-dimensional finite element analysis.Methods: An image of a buccolingual longitudinal plane in the middle of an upper first premolar and supporting tissues was used for modeling 10 groups: cylindrical cavity, erosion, and abfraction lesions with the same C-factor (1.57), a second cylindrical cavity and abfraction lesion with the same quantity of resin (QR) as the erosion lesion, and then all repeated with a bevel on the occlusal cavosurface angle. The 10 groups were imported into Ansys 13.0 for two-dimensional finite element analysis. The mesh was built with 30,000 triangle and square elements of 0.1 mm in length for all the models. All materials were considered isotropic, homogeneous, elastic, and linear, and the resin composite shrinkage was simulated by thermal analogy. The maximum principal (MPS) and von Mises stresses (VMS) were analyzed for comparing the behavior of the groups.Results: Different values of angles for the cavosurface margin in enamel and dentin were obtained for all groups and the higher the angle, the lower the stress concentration. When the groups with the same C-factor and QR were compared, the erosion shape cavity showed the highest MPS and VMS values, and abfraction shape, the lowest. A cavosurface bevel decreased the stress values on the occlusal margin. The geometry factor overcame the effects of C-factor and QR in some situations.Conclusion: Within the limitations of the current methodology, it is possible to conclude that the combination of all variables studied influences the stress, but the geometry is the most important factor to be considered by the operator.

Correspondence between the one-loop three-point vertex and the Y and Delta electric resistor networks

Different mathematical methods have been applied to obtain the analytic result for the massless triangle Feynman diagram yielding a sum of four linearly independent (LI) hypergeometric functions of two variables F-4. This result is not physically acceptable when it is embedded in higher loops, because all four hypergeometric functions in the triangle result have the same region of convergence and further integration means going outside those regions of convergence. We could go outside those regions by using the well-known analytic continuation formulas obeyed by the F-4, but there are at least two ways we can do this. Which is the correct one? Whichever continuation one uses, it reduces a number of F-4 from four to three. This reduction in the number of hypergeometric functions can be understood by taking into account the fundamental physical constraint imposed by the conservation of momenta flowing along the three legs of the diagram. With this, the number of overall LI functions that enter the most general solution must reduce accordingly. It remains to determine which set of three LI solutions needs to be taken. To determine the exact structure and content of the analytic solution for the three-point function that can be embedded in higher loops, we use the analogy that exists between Feynman diagrams and electric circuit networks, in which the electric current flowing in the network plays the role of the momentum flowing in the lines of a Feynman diagram. This analogy is employed to define exactly which three out of the four hypergeometric functions are relevant to the analytic solution for the Feynman diagram. The analogy is built based on the equivalence between electric resistance circuit networks of types Y and Delta in which flows a conserved current. The equivalence is established via the theorem of minimum energy dissipation within circuits having these structures.

Semiótica do discurso científico: um estudo sobre novas perspectivas para a análise documental de conteúdo

Greimas Semiotic offers procedures for the analysis of different types of texts and discourses. For this reason, this study aimed to analyze the production of sense from scientific discourse, explained by Greimas Semiotics and Generative Sense Course, seeking to develop a new perspective on the identification of aboutness in Documentary Content Analysis and Information Science. The method used was exploratory and bibliographic review. Results show that the analysis of scientific discourse contributes to the identification of aboutness in Documentary Content Analysis, using Greimas Semiotics and Generative Sense Course.

Indícios da presença de fundamentos semióticos na literatura da Ciência da Informação

The interfaces between Semiotics of Information Science must also be analysed from a broader perspective, searching for signs of interdisciplinary involvement. So, as a complement to a theoretical study on the semiotic foundations of document analysis and information mediation, we undertook the analysis of the presence of semiotic perspectives in the Information Science literature —journals papers, conference proceedings and theses. The results showed that the semiotic studies related to the information analysis and information mediation are in an incipient stage, especially in Brazil, in spite of a substantial increase in the number of publications.

Manuais Didáticos e literatura infantil: as leituras infantis no Brasil e em Portugal

The school textbook is an important pedagogic resource in the classroom, and it is frequently the only one. But, an analysis of the Maternal Language’s textbooks in Brazil and in Portugal allowed us to detect serious didactic obstacles to the learning of the language in its semiotic omnifuncionality. In this paper we are going to present the results of a project that involves the presence of a children’s literature book in the classroom instead of the textbook adaptations. We developed activities before, during and after the reading in a fourth grade class of an Elementary School in Brazil and Portugal having the aim of build readers.

Sobre o pensamento de Peirce e a organização da informação e do conhecimento

Incomplete glimpses of the philosophy of Charles Peirce (1839-1914) can frequently be found in studies about Semiotics and Information Science. Therefore, we sought to discover the theoretical and applied interrelationships between knowledge and information organization and Peirce's Semiotics and Philosophy. The aim was to discover and evaluate the contributions of Peirce's Semiotics and Philosophy to the knowledge and information organization field. The method of this study was bibliographical research. The main results were: indexing process semiotic model, semiotic knowledge organization, interaction between documentary semiotics and documentary languages, kinds of inference to the indexing process, as well as the collaboration of Peirce's pragmatism to terminology theory. Finally, we listed issues for future research.

Mediação como processo semiótico: em busca de bases conceituais

In the context of the studies in the Information Science, the information not just depends on meaning, but the social bows are current of this. The research in development analyse conceptual elements to answer the question about the semiotic foundations of the information mediation processes. This paper aim to know and analyse the semiotic foundations of the information mediation processes in the Information Science context. It presents concepts and reflections regarding the relationship of the information mediation process Charles Peirce's Semiotics, especially, the discussion about the semiotic bases to information mediation process. It discusses the information mediation as a specialization of the communication process, developed, fundamentally, for the human action trying to solve communication and technical problems in sociocultural order.

Os contributos da semiótica para o desenvolvimento do pensamento jurídico dos séculos XX e XXI: possibilidades de abordagem das problemáticas de positivismo e o pós-positivismo a partir da semiótica jurídica

Pós-graduação em Direito - FCHS