(1) A one-dimensional minimization problem and the Ritz method. (2) Weak formulation and the Galerkin method. Abstract error estimates. (3) The lemma of variations. Euler-Lagrange equations. Weak formulation, again. (4) The Ritz-Galerkin finite element method: philosophy. (5) The piecewise linear finite element space and basis functions. The linear system. (6) The piecewise linear finite elemen...

Jacob J. Bloomberg, Charles S. Layne, P. Vernon McDonald, Brian T. Peters, William P. Huebner, and Millard F. Reschke of the Johnson Space Center, Houston, TX; Alain Berthoz of the Laboratoire de Physiologie de la Perception et de L’Action, Collége de France, Centre National de la Recherche Scientifique, Paris, France; Stefan Glasauer of the Ludwig-Maximilians-Universität München, Klinikum Groß...

Authors' A Marine Life 2Molecula Bioscienc 3Departme Medicine, B Correspon Departmen 756, Repub E-mail: im Biochemist 614-051, R 4036. E-ma

The case report titled “Acute renal failure during a trial of spinal cord stimulation: Theories as to a possible connection” by Larkin et al (1) addressed that spinal T9 stimulation could lead to diminished renal blood flow by the decreased sympathetic input. Renal sympathetic innervation is widely acknowledged to involve the maintenance of fluid homeostasis and modulation of renal hemodynamics...