Analysis of a class of boundary value problems depending on left and right Caputo fractional derivatives

In this work we study boundary value problems associated to a nonlinear fractional ordinary differential equation involving left and right Caputo derivatives. We discuss the regularity of the solutions of such problems and, in particular, give precise necessary conditions so that the solutions are C1([0, 1]). Taking into account our analytical results, we address the numerical solution of those problems by the augmented-RBF method. Several examples illustrate the good performance of the numerical method.P.A. is partially supported by FCT, Portugal, through the program “Investigador FCT” with reference IF/00177/2013 and the scientific projects PEstOE/MAT/UI0208/2013 and PTDC/MAT-CAL/4334/2014. R.F. was supported by the “Fundação para a Ciência e a Tecnologia (FCT)” through the program “Investigador FCT” with reference IF/01345/2014.info:eu-repo/semantics/publishedVersio

Absence of Gluonic Components in Axial and Tensor Mesons

A quarkonium-gluonium mixing scheme previously developed to describe the characteristic of the pseudoscalar mesons is applied to axial and tensor mesons. The parameters of the model are determined by fitting the eigenvalues of a mass matrix. The corresponding eigenvectors give the proportion of light quarks, strange quarks and glueball in each meson. However the predictions of the model for branching ratios and electromagnetic decays are incompatible with the experimental results. These results suggest the absence of gluonic components in the states of axial and tensor isosinglet mesons analyzed here.Comment: 12 page

Structural health monitoring of different geometry structures with optical fiber sensors

In this paper, we describe the structural health monitoring of several structures, with different geometry, materials and behaviors, using optical fiber sensors. Those studies aimed to demonstrate the feasibility of such technologies in structural health monitoring, with all the advantages inherent to the optical fiber technology

Grande potencial.

Embora ainda pouco conhecido, o mirtilo é uma fruta muito apreciada no exterior, com crescimento de consumo de cerca de 20% ao ano. No Brasil, representa uma oportunidade de diversificação devido a seu elevado valor agregado.Número especial. Contém orientações gerais de como produzir mirtilo

Uppermost Miocene Lamniform Selachians (Pisces) from the Alvalade basin (Portugal)

This paper deals with Lamniform teeth collected in deposits from the Esbarrondadoiro Formation, Alvalade Basin in Southern Portugal. The following genera were recognized: Carcharias, Pseudocarcharias, Alopias, Isurus and Carcharocles. The species Carcharias acutissima is by far the most predominant, all other taxa being rare or very rare. This situation points to neritic, tropical to subtropical, rather shallow waters not far away from the coast. This is corroborated by the rarity of the associated, mainly pelagic, taxa. The ratio between C. acutissima and the remaining Lamniforms as a whole is markedly uneven between Esbarrondadoiro and the localities of Santa Margarida and Vale de Zebro. This suggests quite different environmental conditions, a matter that will require a more thorough examination taking into account all palaeontologic and geologic data

Escalas de Bem-Estar Social: evidências de validade e fidelidade no contexto português

This study aims to provide evidence of validity and reliability of the Social Well-being Scales in the Portuguese context. A cross-sectional study was developed with 322 adults (M = 30.45; SD = 8.52) aged from 18 to 58 years old, mostly females (65.8%). Confirmatory factor analysis revealed a good model fit considering the five-factor model consistent with the original theoretical proposal. Also, additional validity evidence was obtained with statistically significant associations being found between social well-being dimensions and satisfaction with life, depression and anxiety. Reliability data also showed adequate internal consistency of all well-being dimensions. This reliable and valid scale is useful to evaluate social well-being in adulthood in the Portuguese context, not only allowing a more comprehensive approach to the mental health research but also providing opportunities of assessment and intervention focused on a positive framework.info:eu-repo/semantics/publishedVersio

Therapeutic challenge of a paediatric case of Graves' disease with severe ophthalmopathy

info:eu-repo/semantics/publishedVersio