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Principal turnover continues to plague schools, as principals are asked to perform multiple roles
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Being an instructional coach, troubleshooter and financial manager in high pressure environments drives administrators away just as experience value kicks in, experts say. - photo by Eric Schulzke
Spurred by escalating pressures for performance and a multitude of job demands in a high stress environment, principals are quitting the job at unprecedented rates, according to the Hechinger Report.

More than half of principals leave within five years of taking office, researchers have found, before they have been able to reshape the culture and stabilize staffing under their leadership.

"The departure of a principal often sets off an exodus of teachers," the Hechinger report notes. "School culture can also be disrupted, and parent engagement wavers." Hechninger cites a study at Mount Holyoke College that found that after principals leave, schools typically suffer two years of academic decline.

Analysts attribute the rapid exits by school leaders to an overload of roles and pressures, as well as a hostile work environment in many of the most challenging schools.

"The new generation of principals, though, especially those who work in urban schools, have become far more involved with what happens in the classroom," according to the Hechinger Report. "Spurred by new state laws that call for improved methods of teacher evaluation, many districts across the country are looking for principals to serve as instructional leaders and talent judges helping teachers improve, rewarding those deemed 'most effective' and firing those who arent."

Last year,School Leaders Network estimated that the cost of replacing a principal from the search to the training and mentoring that follows averages $75,000 each time.

In addition to the transition costs, the school loses out on the growth that quality leaders can offer. The SLN report noted that not a single school has ever been found to accomplish turnaround achievement without a powerful leader at the helm of the change effort.

The rapid turnover is most severe in high-poverty schools where good teachers and administrators are most needed, Robert Maranto, a professor in the Department of Education Reform at the University of Arkansas, told the Deseret News.

One charter network that retains its leadership, the SLN report suggests, is the Knowledge is Power Program, a highly successful national network of charter schools. KIPP invests $150,000 in preparing and supporting new principals and suffers only 17 percent principal turnover, compared with 29 percent at the average charter.

I think its worth it, Maranto said in an interview. In the U.S. military, we spend that much or more in preparing lieutenants and captains.

One reason principals turn over so rapidly is that their roles are both ill-defined and overwhelming.

We expect the principal to be a business manager, a CEO, the instructional manager and the discipline person, Amber Northern, vice president for research at the Fordham Institute, said. They are crumbling under the pressure because we have given them an entirely unmanageable job.
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.