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- Eric F Johnson, Timothy Sherry, John M. Ringo, Harold B. Dowse
- Journal of Comparative Physiology B
- 2002

The myogenic cardiac pacemaker of Drosophila melanogaster responds to a range of neurotransmitters and hormones by adjusting heart rate. These cardioactive substances ultimately affect the activity of ion channels comprising the pacemaker. We report here work utilizing genetic variants and pharmacological tools to explore a subset of possible mechanisms for… (More)

1 Abstract A superspace formulation of N = 1 supersymmetry in two dimensional Anti-deSitter (AdS 2) space is provided.

An SO(4) gauge invariant model with extended field transformations is examined in four dimensional Euclidean space. The gauge field is (A) = 1 2 t(M) where M are the SO(4) generators in the fundamental representation. The SO(4) gauge indices also participate in the Euclidean space SO(4) transformations giving the extended field transformations. We provide… (More)

- M . R . Ahmady, F. A. Chishtie, +4 authors Thea Steele
- 2008

The renormalization-scale (μ) dependence of the two-loop inclusive semileptonic b → cl−ν̄l decay rate is shown to be significant in the pole mass scheme, and the decay rate is shown to be poorly convergent in the MS scheme. Three-loop contributions to the decay rate are estimated by developing Padé approximant techniques particularly suited to perturbative… (More)

Abstract. In this paper, we survey the nature of spinors and supersymmetry (SUSY) in various types of spaces. We treat two distinct types of spaces: flat spaces and spaces of constant (non-zero) curvature. The flat spaces we consider are either three or four dimensional of signatures 3 + 1, 4 + 0, 2 + 2 and 3 + 0. In each of these cases, SUSY generators… (More)

We compute the contribution to the modulus of the one-loop effective action in pure non-Abelian Chern-Simons theory in an arbitrary covariant gauge. We find that the results are dependent on both the gauge parameter (α) and the metric required in the gauge fixing. A contribution arises that has not been previously encountered; it is of the form (α/ √ p2)… (More)

An SO(4) gauge invariant model with extended field transformations is examined in four dimensional Euclidean space. The gauge field is (A) = 1 2 t(M) where M are the SO(4) generators in the fundamental representation. The SO(4) gauge indices also participate in the Euclidean space SO(4) transformations giving the extended field transformations. We provide… (More)

An embedding superspace, whose Bosonic part is the flat 2 + 1 dimensional embedding space for AdS 2 , is introduced. Superfields and several supersymmetric models are examined in the embedded AdS 2 superspace.