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- D M Shoback, J M McGhee
- Endocrinology
- 1988

The stimulation of polyphosphoinositide (PPI) turnover is associated with cellular activation and hormone secretion in numerous systems. GTP-binding proteins appear to couple receptors to phospholipase-C-mediated PPI breakdown. We assessed the effects of fluoride, an activator of GTP-binding proteins, on inositol phosphate accumulation, intracellular free… (More)

In this paper we present an efficient alternative to the power iteration method that is typically used to calculate k–eigenvalues, and corresponding eigenvectors, with deterministic transport codes. The alternative approach is based on a Krylov subspace iterative projection method called the Implicitly Restarted Arnoldi Method (IRAM). Only modest changes… (More)

Discontinuous finite element methods for the SN equations on 3-D unstructured tetrahedral and hexahedral meshes are presented. Solution techniques including source iteration and diffusion-synthetic acceleration are described. Numerical results are presented which demonstrate the accuracy and efficiency of these methods.

- Jim E. Morel, B. Todd Adams, Taewan Noh, John M. McGhee, Thomas M. Evans, Todd J. Urbatsch
- J. Comput. Physics
- 2006

There are three commonly recognized second-order self-adjoint forms of the neutron transport equation: the evenparity equations, the odd-parity equations, and the self-adjoint angular flux equations. Because all of these equations contain second-order spatial derivatives and are self-adjoint for the mono-energetic case, standard continuous finiteelement… (More)

- Nathan D. George, Arkady Kheyfets, John M. McGhee, Warner A. Miller
- 2008

The search for an understanding of an energy source great enough to explain the gamma-ray burst (GRB) phenomena has attracted much attention from the astrophysical community since its discovery. In this paper we extend the work of K. Asano and T. Fukuyama, and J. D. Salmonson and J. R. Wilson, and analyze the off-axis contributions to the energy-momentum… (More)

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