The first eigenvalue of the Laplacian and the Conductance of a Compact surface

We present some results with the central theme of is the phenomenon of the first eigenvalue of the Laplacian and conductance of the dynamical system. Our main tool is a method for studying how the hyperbolic metric on a Riemann surface behaves under deformation of the surface. With this model, we show variation of the first eigenvalue of the laplacian and the conductance of the dynamical system, with the Fenchel–Nielsen coordinates, that characterize the surface

Rigidity and flexibility of surface groups

The aim of this work is the °exibility of the hyperbolic surfaces. The results are about °exibility and geometrical boundedness. Bers are stated the universal property for all hyperbolic surface of ¯nite area where introduced the constant of boundedness. We determine this constant, using symbolic dynamics

Geodesic length spectrum on compact Riemann surfaces

In this paper we use techniques linking combinatorial structures (symbolic dynamics) and algebraic-geometric structures to study the variation of the geodesic length spectrum, with the Fenchel-Nielsen coordinates, which parametrize the surface of genus τ = 2. We explicitly compute length spectra, for all closed orientable hyperbolic genus two surfaces, identifying the exponential growth rate and the first terms of growth series

The first eigenvalue of the Laplacian and the ground flow of a compact surface

We present some results whose central theme is that the phenomenon of the first eigenvalue of the Laplacian and the ground flow of the compact surface (bitorus). Our main tool is a method for studying how the hyperbolic metric on a Riemann surface behaves under deformation of the surface. With this model, we show that there are variation of the first eigenvalue of the Laplacian and the ground flow with the Fenchel-Nielsen coordinates, that characterize the surface

Chaotic behavior in an economic model

The purpose of this work is to study a discrete-time nonlinear business cycle model of the Kaldor-type. The model is an extended Kaldor model and it is described by a two-dimensional dynamical system with income and capital as variables. We check the orbits of the system, their changes related to changes of the system parameters and their basins of attraction in order to understand the dynamic features of the model

Bidirectional relationship between sleep disturbances and stress : the role of coping and quality of life

3rd International Congress of CiiEM - Research and Innovation in Human and Health. Monte da Caparica, Portugal, 20-22 June 2018N/

Aprendizagem organizacional e o uso estratégico da informação contábil na captação de recursos

As EPPs enfrentam dificuldades no acesso ao financiamento externo advindo em grande parte da fragilidade das informações financeiras. Este estudo buscou analisar se na visão dos contabilistas a aprendizagem organizacional e o uso estratégico das informações contábeis influenciam na qualidade da captação de crédito pelas EPPs e observar até que ponto a capacidade de aprendizagem organizacional e o uso estratégico das informações contábeis podem interferir na qualidade da captação de recursos pelas referidas empresas. Os dados coletados em 126 escritórios de contabilidade e foram analisados com a técnica de análise de correlação canônica, considerando os dados originais observados, para estudar as associações existentes entre um grupo inicial de características da Aprendizagem Organizacional e Uso Estratégico da Informação Contábil com um segundo grupo formado pelas características da Qualidade do Crédito. Os resultados revelam que tanto uso estratégico da informação contábil quanto a aprendizagem organizacional influencia na qualidade do crédito captado."This work has been supported by FCT – Fundação para a Ciência e Tecnologia in the scope of the project: PEst-OE/EEI/UI0319/2014.info:eu-repo/semantics/publishedVersio

Organizational factors affecting knowledge sharing capabilities: a study with portuguese health professionals

The importance of knowledge management in the healthcare sector has been highlighted in an attempt to expand the speed of new digital technologies to establish external collaboration, employee engagement, networking, and customer service, providing at the same time new challenges for the overall education system. Kim and Lee’s empirical study, supported on Davenport and Prusak's framework, evaluated to what extent i) organizational culture (ii) organizational structure, (iii) application of information technology, influence sharing knowledge capabilities in public organizations in South Korea. The goal is to validate Kim and Lee's instrument, trying to replicate the theoretical model suggested by them but not fully validated,with 203 health professionals from the Algarve region (southern Portugal). The data were submitted to an exploratory and confirmatory factor analysis with (STATA), in order to meet a criterion-related validity. Results show the effect of "cultural organizational" through the facets "visions and objectives," "trust," and "social networks" on KSC. The variables “organizational structure” and “information technology” provided no statistical support because they were not significantly associated with employee's knowledge-sharing capabilities. Small 7 sample size and perceptual measures are only some of several limitations. Future studies must prepare a systematic literature review and use the results of this first study in order to find out a valid model.info:eu-repo/semantics/publishedVersio