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Pope will see himself everywhere in Philly when he arrives Friday night
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Pope Francis is everywhere in Philadelphia store windows in advance of his arrival Friday. Here, a Popeadelphia cup and a bobble-head doll. - photo by Lois M. Collins
PHILADELPHIA Wags are calling the city Popeadelphia a term emblazoned on about a million mugs in this city of brotherly love and sisterly affection. And though Pope Francis' travel plans call for him to arrive Friday evening, he's already here.

Sort of.

The pope's smiling and occasionally pensive visage adorns everything from bobble-head dolls and plush toys for kids to jewelry, banners, books, tote bags, neckties, T-shirts and posters.

There are three-dimensional tiles and watercolor paintings. His face peers out from lanyards. A visitor to the World Meeting of Families can even find candles with layered renditions of the pontiff's face. In the exhibit hall alone one counts 16 different T-shirt designs related to the papal visit, his first to America.

"Popeful" is splashed across a T-shirt that bears his image.

If I may "pontificate," I'll note that they're ready to make him feel welcome.

Merchandising papal visits has a long tradition in the United States and elsewhere, according to a recent Deseret News National story. In 1987, the U.S. tour undertaken by John Paul II, then in the ninth year of his pontificate, inspired such items as a "Pope-Scope," a cardboard tube with small mirrors at an angle, so people could see his motorcade over the heads of others. Other souvenirs included buttons, a T-shirt inscribed "Your Holiness, Welcome to Texas" and additional booklets.

Six years later, mindful of such kitsch as "Pope-on-a-Rope" soap bars, Catholic leaders in 1993 prepared for another Pope John Paul II visit to America by hiring the Famous Artists Merchandising Exchange of Dayton, Ohio, to handle licensing of the pope's image, according to The New York Times (paywall).
Its toxic: New study says blue light from tech devices can speed up blindness
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A new study from the University of Toledo found that blue light from digital devices can transform molecules in your eyes retina into cell killers. - photo by Herb Scribner
It turns out checking Twitter or Facebook before bed is bad for your health.

A new study from the University of Toledo found that blue light from digital devices can transform molecules in your eyes retina into cell killers.

That process can lead to age-related macular degeneration, which is a leading cause of blindness in the United States, according to the researchs extract.

Blue light is a common issue for many modern Americans. Blue light is emitted from screens, most notably at night, causing sleep loss, eye strain and a number of other issues.

Dr. Ajith Karunarathne, assistant professor in the UT Department of Chemistry and Biochemistry, said our constant exposure to blue light cant be blocked by the lens or cornea.

"It's no secret that blue light harms our vision by damaging the eye's retina. Our experiments explain how this happens, and we hope this leads to therapies that slow macular degeneration, such as a new kind of eye drop, he said.

Macular degeneration is an incurable eye disease that often affects those in their 50s or 60s. It occurs after the death of photoreceptor cells in the retina. Those cells need retinal to sense light and help signal the brain.

The research team found blue light exposure created poisonous chemical molecules that killed photoreceptor cells

"It's toxic. If you shine blue light on retinal, the retinal kills photoreceptor cells as the signaling molecule on the membrane dissolves," said Kasun Ratnayake, a Ph.D. student researcher working in Karunarathne's cellular photo chemistry group. "Photoreceptor cells do not regenerate in the eye. When they're dead, they're dead for good."

However, the researchers found a molecule called alpha-tocopherol, which comes from Vitamin E, can help prevent cell death, according to Futurism.

The researchers plan to review how light from TVs, cellphones and tablet screens affect the eyes as well.

"If you look at the amount of light coming out of your cellphone, it's not great but it seems tolerable," said Dr. John Payton, visiting assistant professor in the UT Department of Chemistry and Biochemistry. "Some cellphone companies are adding blue-light filters to the screens, and I think that is a good idea."

Indeed, Apple released a Night Shift mode two years ago to help quell blue lights strain on the eyes, according to The Verge. The screen will dim into a warmer, orange light that will cause less stress on the eyes.