As the material is deformed beyond the strain that elastic deformation persists, the stress is no longer proportional to strain, and permanent, nonrecoverable, or plastic deformation occurs.
Neither rounds nor longways persisted in American folk dancing proper, although both formations are found in children's games, and the still-popular "Virginia Reel" is a longways.
Whereas local collaborations sometimes persist past the point of usefulness, because of social or academic obligations, international ones can be cultivated and dropped more freely.
She was sentimentally attached to this house, for even though it was far too big for her needs, she persisted in living there long after her husband's death.
But by most measures, we have more knowledge and more resources now than at any other point in history, and still injustice abounds and challenges persist.
Sasha Kill Ewald, who's revealing how marriage and parenthood affects wages, and helping us understand why economic inequality persists across generations—and also how we might break the cycle of poverty.
And these views persist despite volumes of evidence demonstrating the critical role of education for economic mobility and for individual and family wellbeing.
But concerns about the 737 MAXes persists, one that was being flown from Florida to California for temporary storage made an emergency landing on Tuesday.
It's true, these questions have been debated for a very long time but the very fact that they have recurred and persisted may suggest that though they're impossible in one sense, they're unavoidable in another.
Last New Year, I issued a red alert, and the dangers I mentioned still persist. These are anxious times for many, and our world is undergoing a stress test.
However a proportion of patients up to 20 or so percent - certainly in females - it will persist well into the 30s, 40s - much longer than people often give it credit for.