BACKGROUND The relationship between family and health has not been studied in detail in primary care. AIM To evaluate the association between family functioning style and health problems among families receiving primary care. DESIGN AND SETTING Cross-sectional study in an underserved primary care clinic in Santiago, Chile. METHOD Families registered at the Juan Pablo II Primary Care Clini...

OBJECTIVE To review both the scientific literature and lay literature on toilet training, covering parents' expectations, the methods available for achieving bladder and bowel control and associated morbidities. SOURCES Articles published between 1960 and 2007, identified via the MEDLINE, Cochrane Collaboration, ERIC, Web of Science, LILACS and SciELO databases plus queries on the Google sear...

An optimal order algebraic multilevel iterative (AMLI) method for solving systems of linear algebraic equations arising from the finite element discretization of certain boundary value problems, that have their weak formulation in the space H (div), is presented. The algorithm is used for the solution of the discrete minimization problem which arises in the functional-type a posteriori error es...

Runge-Kutta discontinuous Galerkin (RKDG) method is a high order finite element method for solving hyperbolic conservation laws employing useful features from high resolution finite volume schemes, such as the exact or approximate Riemann solvers serving as numerical fluxes, TVD Runge-Kutta time discretizations and limiters. In most of the RKDG papers in the literature, the LaxFriedrichs numeri...

We establish the well-posedness of an hp-version time-stepping discontinuous Galerkin (DG) method for the numerical solution of fractional super-diffusion evolution problems. In particular, we prove the existence and uniqueness of approximate solutions for generic hp-version finite element spaces featuring non-uniform time-steps and variable approximation degrees. We then derive new hp-version ...

In the present work, we propose a deterministic numerical solver for the homogeneous Boltzmann equation based on Discontinuous Galerkin (DG) methods. The weak form of the collision operator is approximated by a quadratic form in linear algebra setting. We employ the property of “shifting symmetry” in the weight matrix to reduce the computing complexity from theoretical O(N) down to O(N), with N...

In recent years high order numerical methods have been widely used in computational uid dynamics (CFD), to e ectively resolve complex ow features using meshes which are reasonable for today's computers. In this paper we review and compare three types of high order methods being used in CFD, namely the weighted essentially non-oscillatory (WENO) nite di erence methods, the WENO nite volume metho...

OBJECTIVE The rapidly increasing prevalence of obesity in children is the most important problem facing pediatricians today. A recent study suggested an association of obesity and constipation in children but lacked a control group for comparison. The objectives of this study were to evaluate the prevalence of obesity in a large cohort of children with functional constipation and to compare it ...

The discontinuous Galerkin (dG) method for time integration of the parabolic problem obtained when pricing options using the BlackScholes partial di↵erential equation is presented. By decoupling of the large system of equations needed to be solved in each time step, the time of computation and memory requirement is significantly reduced. Even though there is a discontinuity in the first derivat...

In this paper, we study numerical methods for the solution of partial differential equations on evolving surfaces. The evolving hypersurface in Rd defines a d-dimensional spacetime manifold in the space-time continuum Rd+1. We derive and analyze a variational formulation for a class of diffusion problems on the space-time manifold. For this variational formulation new well-posedness and stabili...