Lucas C. F. Ferreira

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We analyse the well-posedness of the initial value problem for the dissipative quasi-geostrophic equations in the subcritical case. Mild solutions are obtained in several spaces with the right homogeneity to allow the existence of self-similar solutions. We prove that the only small self-similar solution in the strong L p space is the null solution while(More)
OBJECTIVE To establish the stability reliability, precision, and minimum value for detecting real differences for quadriceps angle (Q-angle) measurements based on standardized protocols and surface goniometry. DESIGN An intratester reliability study. SETTING University research laboratory. PARTICIPANTS Fifty-two healthy, young, relatively lean adults(More)
Vertical jump performance is often assessed using jump-and-reach tests. The exact procedure used for determining standing reach height and jump height has a large effect on the resultant displacement. The purpose of this investigation was to determine the influence of 4 methods of standing reach height measurement and Vertec jump height measurement against(More)
In this talk we address the issue of existence of weak solutions for the non-homogeneous Navier-Stokes system with Navier friction boundary conditions allowing the presence of vacuum zones and assuming rough conditions on the data. We also study the convergence, as the viscosity goes to zero, of weak solutions for the non-homogeneous Navier-Stokes system(More)
This investigation was designed to determine if relatively small manipulations of squat load and the inclusion of selected morphologic variables might augment the explained variance in vertical jump (VJ) displacement. Fifty-two university students (27 women and 25 men) with weight training experience served as subjects. All were assessed for body fat(More)
We derive new results about existence and uniqueness of local and global solutions for non-linear Schrödinger equation, including self-similar global solutions. Our analysis is performed in the framework of Marcinkiewicz spaces. 1 Introduction We consider the nonlinear Schrödinger equation i∂ t u + ∆u = λ|u| ρ u, x ∈ R n , t ∈ R, (1.1) u(0, x) = φ(x), x ∈ R(More)
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