Changing seating posture can extend the amount of time a person can safely remain seated without damaging tissue or becoming fatigued. The Excelsior is an electrically powered wheelchair that utilizes sit-to-stand (STS) and sit-to-recline (STR) motions to aid in pressure relief. The motion of the wheelchair seating system must closely follow anatomical paths or ulcers may develop from the resul...

This report will review the similarities and differences of four species of pine seed caching members of the avian family Corvidae that live on the slopes and base of the San Francisco Peaks in north-central Arizona. The four species include the Clark’s nutcracker (Nucifraga columbiana), pinyon jay (Gymnorhinus cyanocephalus), western scrub-jay (Aphelocoma californica), and Mexican jay (A. ultr...

Phillip Lieberman, MD; Richard A. Nicklas, MD; Christopher Randolph, MD; John Oppenheimer, MD; David Bernstein, MD; Jonathan Bernstein, MD; Anne Ellis, MD; David B.K. Golden, MD; Paul Greenberger, MD; Steven Kemp, MD; David Khan, MD; Dennis Ledford, MD; Jay Lieberman, MD; Dean Metcalfe, MD; Anna Nowak-Wegrzyn, MD; Scott Sicherer, MD; Dana Wallace, MD; Joann Blessing-Moore, MD; David Lang, MD; J...