Marco Antonio Teixeira

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In this article we deal with singularly perturbed Filippov systems Zε: are smooth maps. We study the effect of singular perturbations at typical singularities of Z 0. Special attention will be dedicated to those points satisfying q ∈ {h(x, y, 0) = 0} ∩ {H(x, y, 0) = 0} where F or G is tangent to {h(x, y, 0) = 0}. The persistence and the stability properties(More)
– Psychological evaluation teaching in Brazil: Survey with teachers from different regions Psychological assessment and evaluation is the core practice of psychologists, so it is essential that training fulfills the needs and complexities of working in the area. Congruent to previous studies that mapped its teaching, this study identified the profile of(More)
In this paper we study piecewise linear differential systems formed by two regions separated by a straight line so that each system has a real saddle point in its region of definition. If both saddles are conveniently situated, they produce a transition flow from a segment of the splitting line to another segment of the same line, and this produces a(More)
A number of studies have addressed the dimensionality and the measurement invariance of the Levenson Self-Report Psychopathy scale (LSRP; Levenson, Kiehl, & Fitzpatrick, 1995). However, previous investigations exclusively relied on North American samples and mainly on statistical methods that assume data as normally and continuously distributed. The aim of(More)