1 Editor-in-Chief, Lymphatic Research and Biology (2002 - Present) 2  Chair, Scientific Advisory Committee, Lymphatic Research Foundation (1999 - Present) 3  Director, Stanford Center for Lymphatic and Venous Disorders, Stanford University (2000 - Present) 4  Chief of Consultative Cardiology, Stanford University (1997 - Present)
A BDSM-style collar that buckles in the back. Detail of collar showing D-rings. In a BDSM context, a collar is a device of any material worn by a person around the neck to indicate their submissive or slave status in a BDSM relationship. A person wearing a collar to symbolize their relationship with another is said to be collared.
Tailgating, sometimes referred to as piggybacking, is a physical security breach in which an unauthorized person follows an authorized individual to enter a secured premise. Tailgating provides a simple social engineering-based way around many security mechanisms one would think of as secure. Even retina scanners don't help if an employee holds the door for an unknown person behind them, out of misguided courtesy.