The UA's Kelly Reynolds said that hard surfaces that are frequently touched by multiple people provide good environments for microbes to collect.
UA President Robert C. Robbins is interviewed.
The UA will host a series of talks called TEDxUofA, with discussions ranging from artificial intelligence, to the philosophy of comic books, to gender and race.
Robert Casper, head of the Poetry and Literature Center at the Library of Congress, writes about his experiences at the Poetry Coalition's annual gathering at the UA Poetry Center.
The UA's David Raichlen has found that exercise significantly benefits brain structure and function, likely because of how we evolved as physically active hunter-gatherers.
"The hot air will kill the bacteria on the hands, but some studies have found they will also deposit bacteria in the restroom on your hands," said the UA's Charles Gerba.
The UA College of Nursing has received a $1.9 million grant to support students from backgrounds that are underrepresented in nursing in Arizona.
Kory Floyd, a professor of communication at the UA, is interviewed about his studies into the effects of affection.
The UA's total research and development expenditures exceeded the annual target set by the Arizona Board of Regents by more than $11 million.