Cortney Riggs

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—The goal of this work is to gain a better understanding of the role that inter-agent variation plays in self-organizing systems. We develop both continuous and discrete models of a multi-agent coordination procedure based on response thresholds and use these models to analyze the average behavior of a system as well as examine the dynamics of single(More)
A 16-year-old female was involved in a jet ski (water craft) accident resulting in bilateral lower extremity fractures but no loss of consciousness or any other evidence of head trauma. Thirty hours later she became comatose. Magnetic resonance imaging was consistent with diffuse axonal injury. She recovered after several weeks without any clinical(More)
Plant seeds naturally accumulate storage reserves (proteins, carbohydrates, lipids) that are mobilized during germination to provide energy and raw materials to support early seedling growth. Seeds have been exploited as bioreactors for the production to foreign materials, but stable, high level expression has been elusive, in part due to the intrinsic bias(More)
This work investigates the impact of inter-agent variation on the performance of a multi-agent system based control system. The control system is composed of a multi-agent team and aggregates the actions of the individual agents of the team to form a single output. In the process, this approach attempts to use error and variation that naturally occurs in(More)
Mutations in the BREVIPEDICELLUS (BP) gene of Arabidopsis thaliana condition a pleiotropic phenotype featuring defects in internode elongation, the homeotic conversion of internode to node tissue, and downward pointing flowers and pedicels. We have characterized five mutant alleles of BP, generated by EMS, fast neutrons, x-rays, and aberrant T-DNA insertion(More)
Members of a family of DNA sequences of Xenopus laevis have been cloned and sequenced. Molecular analyses revealed that these sequences are moderately repetitive and dispersed throughout the genome. The sequences of seven clones were compared. Two of the clones lie in the globin gene cluster; one 5' to the adult alpha 1 gene, and the other in the first(More)
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