Seminar: Friday, April 25, 2014 at 11:00 A.M.
Title: “Multi-fractal Analysis of Complex Systems”
Dr. Robert Kraft
Assistant Professor in Biomedical Engineering
Comprehensive Cancer Center
Center for Biomolecular Imaging
Sticht Center on Aging
Center for Diabetes Research Institute for Regenerative Medicine
Wake Forest School of Medicine
Friday, 4/25/14, 11:00 A.M.
Dr. Kraft’s talk will introduce concept of fractals. He will then show how he is using multifractal analysis of electrophysiology recordings of neuron firing patterns in the hippocampus of a rat during a memory task to identify which neurons are involved in the memory task. After presenting his own work with fractals, he will discuss how fractal analysis is being used in the fields of nanoscience and nanoengineering.
Dr. Robert Kraft is Magnetic Resonance Imaging physicist. Over the last 20 years, his research focus has been developing advanced MRI applications to answer both scientific and clinical questions. He has worked on a variety of projects with such diverse projects as alcohol research in a nonhuman primate model, MRI contrast agents, functional neuroimaging of pain and itch, measuring cerebral blood flow in clinical patients, and muscle skeletal imaging.
Three years ago, after attending a talk on fractal physiology by Dr. Bruce West, Chief Scientist Mathematics at the US Army Research Office, Dr. Kraft redirected his research efforts to the study of complex systems and how their structure affects their function. These complex systems exhibit spatial and temporal properties that are independent of the scale at which they are measured. As a result, these properties cannot be described by descriptive statistics, such as mean and standard deviation, but are best described by their fractal and multifractal dimensions.