I've known Kara Di Francesco, a PhD student here at Oregon State University, since she was an undergraduate studying for a degree in Environmental Sciences from UVA with minors in Economics and Systems Engineering.
She's even graced the pages of WaterWired before when she was a graduate student at the Yale School of Forestry and Environmental Studies and co-organized the Global Perspectives on Large Dams Conference.
Suffice it to say that she is a truly bight, engaging young adult.
Here is a PDF of her PPT presented at the recent FLOODrisk 2012 Conference in Rotterdam, 20-22 November, Flexibility in Flood Management Systems
with Application to California's Central Valley, USA:
"Flexibility is the inherent ability of a system… to cope with or adapt to uncertain and changing conditions, …in a timely and cost-effective manner." - K. DiFrancesco and D. Tullos