challenge

However, the new experiments challenge the idea that ketone bodies are responsible for the protective effect in the colon.

From Science Daily ● Oct. 6, 2026

Some developers turn to pre-built, commercially available engines such as Unity or Unreal Engine, rather than reckon with the challenge of coding from scratch.

From BBC ● Oct. 6, 2026

University of Ottawa law professor Errol Mendes told AFP that, hours after the PQ win, "the challenge to Canadian unity was small."

From Barron's ● Oct. 6, 2026

Texas has been gunning to challenge New York as a hub for finance.

From The Wall Street Journal ● Oct. 6, 2026

Given the extreme weather conditions that constantly plague the area around where both the Erebus and the Terror lie, excavating the wrecks present an enormous challenge.

From "Shipwrecked!" by Martin W. Sandler

The UK government said it was working to address disparities while the Welsh government said challenges will be considered in its next national strategy.

From BBC ● Oct. 6, 2026

The case, involving Barrick Mining’s North Mara mine, challenges the very system that companies, governments and consumers rely on to ensure the bullion and gold-based goods they buy meet accepted social-responsibility standards.

From The Wall Street Journal ● Oct. 6, 2026

Even people who have healthy pregnancies can encounter serious challenges after delivery.

From Science Daily ● Oct. 6, 2026

Many appreciated that she could relate to the challenges they faced as renters.

From MarketWatch ● Oct. 6, 2026

With all of this went the demoralizing effect of an unsuccessful war and the extraordinary challenges associated with rebuilding new state and local governments.

From "The New Jim Crow" by Michelle Alexander

A place to learn and grow and be challenged.

From The Wall Street Journal ● Oct. 5, 2026

However, that decision was challenged in several Belfast courts on Saturday, before finally being given the go-ahead just hours before it was due to take place.

From BBC ● Oct. 3, 2026

In May, I challenged him to have tacos with my dad and me after the internet mocked him for declaring that the hard-shell tacos at a Del Taco in Barstow were “street.”

From Los Angeles Times ● Oct. 3, 2026

The “deafening silence,” I said, on the “AI agent Rubicon” was about to be challenged by the then-approaching U.S.-China summit.

From The Wall Street Journal ● Oct. 2, 2026

Fabyan hated to be challenged, and he had a terrible temper.

From "The Woman All Spies Fear" by Amy Butler Greenfield

"As committed as health care organizations are to supporting patients, navigating the system can still be challenging."

From Science Daily ● Oct. 6, 2026

Even when bodies are recovered, identifying their identities is a slow and challenging task.

From BBC ● Oct. 6, 2026

Appel’s father died in 2023, in his mid-70s, after about seven tumultuous years of challenging health problems.

From MarketWatch ● Oct. 6, 2026

“We’re challenging the buttoned-up paradigm of burying the dead. We’re keeping our dead alive through art, through talking about them always.”

From Los Angeles Times ● Oct. 6, 2026

She had never heard of anyone successfully challenging a landlord in Durham before.

From "The Best of Enemies" by Osha Gray Davidson