Terry Hallett

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The purpose of this investigation was to examine the effects of age at onset of traumatic brain injury on the linguistic competence of children and adolescents who sustained closed head injuries (CHI) that cause diffuse brain damage. The Test of Language Competence-Expanded Edition (TLC-E), a standardized test of subtle language abilities, was administered(More)
iii Abstract In 1975 Kaplansky discussed " Ten conjectures on Hopf algebras " during a lecture at the University of Chicago. The first of these conjectures concerned freeness of a Hopf algebra as a module over a subHopfalgebra. Specifically he conjectured that " a Hopf algebra is free as a module over any subHopfalgebra ". Although this was quickly shown to(More)
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