Tyrone Callahan

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We study the relations among abnormal accounting accruals measures of earnings management, stock offers, post-offer stock returns, and related shareholder lawsuits. We find that accruals are abnormally high around stock offers, especially high for firms that are subsequently sued about their offers. These accruals tend to reverse after stock offers and are(More)
OBJECTIVE To assess factors that might predict serious necrotizing soft tissue infections following illicit drug injection. DESIGN A retrospective review of a consecutive case series. SETTING An urban municipal hospital. PATIENTS Thirty patients presenting with cutaneous abscesses resulting from illicit drug injections during a 5-year period. All(More)
BACKGROUND The heat shock response entails the increased expression of heat shock proteins (hsp) which are capable of protecting cells from subsequent metabolic insults. Here we are interested in determining whether activation of the heat shock response might affect polymorphonuclear leukocyte (PMN) function and/or longevity. METHODS Freshly isolated(More)
Acknowledgments First I would like to thank all members of my committee for their assistance. My gratitude is immeasurable for my advisor, Laura Starks, who has been taking care of me throughout my entire PhD program. This would not have been completed without her invaluable guidance, support and counsel over the years. I also owe a special debt to for many(More)