The ORBEX coprocessor has been designed to execute the typical fuzzy operations of a system based on fuzzy rules. The first real application has been fuzzy controllers for electric cars. The values of the input variables, the position and the orientation of the car with respect the desired trajectory of reference, are obtained from the data provided by a… (More)
is an aperiodic dynamical system, then there exists f 2 L 2 () with R f d = 0 satisfying the central limit theorem: n x 2 X j P n01 j=0 T j f(x) k P n01 j=0 T j f k 2 u o ! 1 p 2 Z u 01 exp 0v 2 2 dv as n ! 1 , for all u 2 R. The method of proof is based on Burton-Denker's construction  which in turn relies upon Kakutani-Rochlin's lemma and imitates the… (More)
Impending demographic changes mean that the proportion of the elderly in the population will increase. Suicide rates increase with age. The literature on elderly suicide, with emphasis on methodology, cross-national rates and trends, correlates, cultural factors, location and method, attempted suicides and prevention, is critically reviewed in this paper.
Depression is common among acutely ill elderly medical inpatients. Identification of such depression by geriatric medicine staff would allow early treatment. The impact of a depression screening procedure on documentation of depressive signs and symptoms in the medical and nursing case-notes was examined. Thirty-five sets of medical and nursing case-notes… (More)
Competencies mobilized by service providers form an element of hospital services insofar as scientific and technological procedures that are part of the service become tangible. In view of the fact that hospitals have adopted Information and Communication Technologies (ICT), it would be logical to assume that learning contributes towards acquiring… (More)
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Fitch addressed the issue for which formulas ϕ it holds that ϕ → ♦Kϕ, i.e., which truths are knowable or in other words can be learnt . He observed that this requirement is inconsistent with the existence of an unknown truth, i.e., with ψ ∧¬Kψ. For example, given a propositional variable p, one can easily compute that the sentence p ∧ ¬Kp cannot be made… (More)
Complexity and predictability of daily precipitation in a tropical semi-arid region (Ceará State, Brazil) is assessed by applying entropy concepts. Precipitation regimes in that region depend on several dynamical forcings, the most important being the displacement and activity of the Inter-tropical Convergence Zone in the Atlantic Ocean. Topography is… (More)