Comparative study of patients knowledge on osteoarthritis treatment options to ACR guidelines

Portuguese population is growing older, according to national data in 2011 the aging index was 129. The number of elderly population is higher than the younger; average life expectancy is 79,2 years (1). Because knee Osteoarthritis increases with age, and according to WHO 80% of these subjects will have some degree of impairment and 25% will not be able to do their daily living activities (2), OA has a big impact on the sustainability of both health and social care as populations grow older. Our goal was to compare current guidelines of managing knee OA, to the degree of information each patient has about their treatment options.info:eu-repo/semantics/publishedVersio

Time-Delayed transfer functions simulations for LMXBs

Recent works (Steeghs & Casares 2002, Casares et al. 2003, Hynes et al. 2003) have demonstrated that Bowen flourescence is a very efficient tracer of the companion star in LMXBs. We present a numerical code to simulate time-delayed transfer functions in LMXBs, specific to the case of reprocessing in emission lines. The code is also able to obtain geometrical and binary parameters by fitting observed (X-ray + optical) light curves using simulated annealing methods. In this work we present the geometrical model for the companion star and the analytical model for the disc and show synthetic time-delay transfer functions for different orbital phases and system parameters.Comment: Contribution presented at the conference "Interacting Binaries: Accretion, Evolution and Outcomes", held in Cefalu, Sicily (Italy) in July 2004. To be published by AIP (American Institute of Physics), eds. L. A. Antonelli, L. Burderi, F. D'Antona, T. Di Salvo, G.L. Israel, L. Piersanti, O. Straniero, A. Tornambe. 4 pages, 4 figure

Gauged WZW models for space-time groups and gravitational actions

In this paper we investigate gauged Wess-Zumino-Witten models for space-time groups as gravitational theories, following the trend of recent work by Anabalon, Willison and Zanelli. We discuss the field equations in any dimension and study in detail the simplest case of two space-time dimensions and gauge group SO(2,1). For this model we study black hole solutions and we calculate their mass and entropy which resulted in a null value for both.Comment: 26 pages, no figure