Samuel S.C. Albuquerque

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AIM This was to determine the prevalence and distribution of traumatic injuries to primary anterior teeth in children from 1 to 3 years-old. METHODS A cross-sectional survey was carried out through clinical examination of the primary dentitions of preschool children enrolled in public nursery schools in Joao Pessoa (Brazil). A total of 293 boys and girls(More)
Relying on the fractal character of the largest clusters at criticality, we employ a finite-size scaling analysis to obtain an accurate phase-diagram of the percolation transition in chains with bond concentration decaying as a power-law on the form 1/ r(1+sigma) . For the particular case of sigma=1, no percolation transition is observed to occur at a(More)
We consider a delayed nonlinear model of the dynamics of the immune system against a viral infection that contains a wild-type virus and a mutant. We consider the finite response time of the immune system and find sustained oscillatory behavior as well as chaotic behavior triggered by the presence of delays. We present a numeric analysis and some analytical(More)
In this paper we study a one-dimensional ternary harmonic chain with the mass distribution constructed from an Ornstein-Uhlenbeck process. We generate a ternary mass disordered distribution by generating the correlated Ornstein-Uhlenbeck process and mapping it into a sequence of three different values. The probability of each value is controlled by a fixed(More)
Albuquerque S.S.C., Rocha B.P., Albuquerque R.F., Oliveira J.S., Medeiros R.M.T., Riet-Correa F., Evêncio-Neto J. & Mendonça F.S. 2014. Spontaneous poisoning by Ricinus communis (Euphorbiaceae) in cattle. Pesquisa Veterinária Brasileira 34(9):827-831. Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros s/n, Dois Irmãos, Recife, PE(More)
PURPOSE To evaluate whether the number and duration of the episodes of silent myocardial ischemia increase with aging of patients. METHODS A Holter monitoring, with CardioData equipment, was made in 1,300 patients and 330 with proven significant coronary obstructions were selected for this study. The anti-anginal medication was maintained during the 24 or(More)
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