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Scientists are studying how some knots perform better than others, like this figure-eight knot tied using a special fiber that changes color under strain. Regions of high strain (green, yellow) can be easily distinguished from sections of the knot at low strain (red, orange).

We know that some knots hold better than others, but the why of it hasn't been so clear. Special fibers that change color under strain are providing some answers.

Patients in the study had "significantly lower out-of-pocket costs — on the average, $500 — when they visited a physical therapist first," says Bianca Frogner, a health economist at the University of Washington.

Trying Physical Therapy First For Low Back Pain May Curb Use Of Opioids

A study of patients with low back pain finds that those who got physical therapy first needed fewer pricey scans and surgeries and had "significantly lower out-of-pocket costs" for treatment overall.

Near Liu's village, Xiguozhuang was the first village in the township of Yanshi, Shandong, to have its houses torn down. Fewer than a dozen homes remain along the village's main road.

China Speeds Up Drive To Pave Rural Villages, Put Up High-Rises

After quickly building megacities, the country is kicking plans into high gear to revamp tens of thousands of country villages. Residents say they are forced or coerced to leave their farm homes.

The Youngstown Vindicator published its last paper last August after 150 years in circulation. A new site, Mahoning Matters, has launched in its wake and hopes to be a home for local watchdog journalism.

Youngstown, Ohio, Lost Its Only Paper. A 'Zombie' News Site Wants To Fill The Void

Nearly one year since The Vindicator went out of business, the new site Mahoning Matters is hoping to become a destination for local watchdog journalism.

Michael Arceneaux's previous book, <em>I Can't Date Jesus,</em> centered on his experiences growing up black, gay and Catholic in Texas.

Saddled With Student Loans, Bestselling Author Worries, 'I Don't Want To Die Poor'

Michael Arceneaux graduated from Howard University in 2007 with more than $100,000 of private student loan debt. He reflects on how that debt has shaped his life in a new book of essays.

Marines string concertina wire at the Otay Mesa Port of Entry, Nov. 16, 2018

Army Will Build New Border Wall In Otay Mountain Wilderness

Forty-four acres of federal land in San Diego County will be set aside for border wall construction. It would mark the first newly built section of border wall the county under the Trump Administration.

Poet Elaine Kahn says the Poetry Field School had its origin in a tweet.

Poetry Field School Offers Long-Distance Solace During A Pandemic

Poet Elaine Kahn teaches video conference workshops for aspiring poets, as part of her Poetry Field School project. She says the pandemic and quarantine have had an impact on her students' writing.

San Diego Derby United holds the grand opening for its new home in Encanto on Saturday. Facility has an outdoor banked and a flat track.

Derby United Holds Grand Opening Saturday In Encanto

New facility for roller derby features banked rink, flat track

A memorial to K-pop star Goo Hara is seen at St. Mary's Hospital in Seoul on Monday. Hara was found dead at her home in Seoul on Sunday, police said.

'Stars Have Feelings. We Are Not Dolls': South Korea Mourns K-Pop Star Goo Hara

Goo Hara, a former member of the K-pop group Kara, was found dead in Seoul on Sunday, the second K-pop celebrity death in less than two months. The 28-year-old star had been a target of cyberbullying.

Regional Elections In Italy May Be A Bellwether For A Far-Right Party

The right-wing League party has been booted out of Italy's federal government, but could make a comeback. Sunday's local elections in Emilia-Romagna are seen as a test of the party's strength.

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