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Dr. Lauryn DeGreeff - Odor Chemistry Basics for K9 Handlers - recording of the webinar

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Presenter

Mrs Dr. Lauryn DeGreeff

Lauryn E. DeGreeff earned her PhD in forensic chemistry from Florida International University in Miami, FL, where she is presently an associate professor in the Chemistry Department and the International Forensic Science Research Institute and where she carries out research in the area of volatiles analysis as it relates to vapor detection by canine and instruments. Prior to returning to FIU, Dr. DeGreeff conducted her research as part of the Chemistry Division at the US Naval Research Laboratory in Washington DC. She takes a chemistry-based approach to studying olfaction for the purpose of informing field vapor sampling practices. Her research focuses on trace vapor sampling, characterization, and generation in support of canine and other field detection approaches. Dr. DeGreeff regularly lectures on the dynamics of odor for the operational community and at national and international scientific conferences. She has also authored a many peer-reviewed manuscripts, holds four pending and completed patents, and is the editor of the book entitled Canines: The Original Biosensor, to be released in early 2022.

Agenda

DESCRIPTION OF THE WEBINAR:
Canines are sensitive and selective, non-contact vapor detectors that can easily be trained to locate novel materials; however, unlike other vapor detection instrumentation or sensors, canines do not give a readable output, thus leaving the handler to interpret canine behavior. One way to better understand canine response to odor and ultimately better the detector is to improve the understanding of factors that affect or change odor.
A compilation of research will be discussed that describes odor on a molecular level as it relates to detection of a target. This will include the basics of odor development from an odor source into an odor plume that is detectable by the dog. We will describe how odor emanates from a target object and how the dog might perceive this odor. We will then discuss the variety of factors that affect how the dog experiences the target odor, such as target mass versus odor quantity, differences between manufacturers, changes with time and environmental conditions, challenges related to wrapping and burial. Factors affecting odor availability and methods to prevent contamination of training materials will also be covered.