Building on our previously published study (Hamel, Shaffer, & Erdberg, 2000), which provided data on 100 nonpatient children aged 6 to 12 from the United States, we here provide reference data for two more homogeneous age subgroups: 6 to 9 (N = 50) and 10 to 12 (N = 50). Inclusion criteria are described, and expanded interrater reliability statistics at the response level are presented along wi...

Keywords: Reaction–diffusion equations Pulsating wave fronts KPP and monostable nonlinearities Uniqueness a b s t r a c t We establish the uniqueness of pulsating wave fronts for reaction–diffusion equations in time periodic media with monostable nonlinearities. For the Kolmogorov–Petrovsky– Piskunov (KPP) type nonlinearity, this result provides a complete classification of all types of KPP pul...

BY MICHAEL R. PANICOLA, Ph.D., & RON HAMEL, Ph.D. From top, Dr. Panicola is corporate vice president, ethics, SSM Health Care, and Dr. Hamel is senior director, ethics, Catholic Health Association, both in St. Louis. J P hysicians have long been committed to promoting the best interests .JSk»_ of their patients, ensuring scientific integrity in research, and making treatment decisions free of b...

BACKGROUND Different stress-strain definitions are used in the literature to measure the elastic modulus in aortic tissue. There is no agreement as to which stress-strain definition should be implemented. The purpose of this study is to show how different results are given by the various definitions of stress-strain used and to recommend a specific definition when testing aortic tissues. METH...

This paper presents the explicit dynamic equations of a mechanical system. The equations are presented so that they can easily be implemented in a simulation software or controller environment and are also well suited for system and controller analysis. The dynamics of a general mechanical system consisting of one or more rigid bodies can be derived from the Lagrangian. We can then use several ...