This paper presents a method for solving Poisson’s equation with Dirichlet boundary conditions on an irregular bounded three-dimensional region. The method uses a nodal-point discretization and adaptive mesh refinement (AMR) on Cartesian grids, and the AMR multigrid solver of Almgren. The discrete Laplacian operator at internal boundaries comes from either linear or quadratic (Shortley–Weller) ...

the binding, release and oxidation of oxygen occur at the heme group iron ion. hemoglobinoxidation-reduction studies have been previously performed using spectroelectrochemistry (sec) andhave provided insight into the hemoglobin electron transfer process and more specifically, into theheme group electronic factor and subunit interaction influences. in this study, the number of fullerenecarbon a...

use for each and every act of intercourse.4 The use of condoms is recommended for individuals who have multiple partners, who have a primary partner who is infected, or who have a partner whose serostatus is unknown,5 although the absolute amount of protection they provide has not been accurately established. The effectiveness of the condom as a contraceptive provides insight into its usefulnes...

This article replies to commentaries by A. Weller and L. Weller (2002) and by C. A. Graham (2002). The author of this reply argues that A. Weller and L. Weller merely defined away the problem of cycle variability for synchrony by assuming either that all cycles are 28-days long or that the expected difference between 2 cycles is 1/4 the mean of the cycles of 2 rhythms. In her commentary, C. A. ...