The phrase "a core concern in" is correct and usable in written English.
It can be used when discussing a primary issue or topic of importance within a specific context or field.
Example: "Environmental sustainability has become a core concern in modern urban planning."
Alternatives: "a key issue in" or "a central focus in".
This collection of writings, statements, mediations, fictions, polemics, and discussions identifies failure as a core concern in cultural production.
Event organisers have made a lot of progress in the last five or six years in terms of making sure that sustainability is a core concern in the planning of these events.
Congress ranks each state for its success in moving special education children into general education classrooms, addressing a core concern in the field — that too many children are not getting access to the regular curriculum.
Finally, sovereign debt crises are no longer just a problem in emerging markets, but a core concern in advanced countries as well – particularly in the Euro area.
"Our immigration laws are made by Congress". Immigration is a core concern in the relationship between the United States and Mexico, but Noriega indicated that progress was more likely on lesser priorities such as sending Peace Corps volunteers to Mexico for the first time and establishing a homeland security hotline between the two countries.
Although gender differences in variability are not a core concern of research into gender differences in achievement, studies in this area have a long tradition.
All of these texts address a core concern: What compels people to behave in the ways that they do?
In response to a core concern of expatriate groups, Mr. Carey denied that the answers on the form might increase voters' exposure to taxes.
The ADIZ declaration confirms that the Diaoyu/Senkaku islands are a "core concern" for China; it places the archipelago in the same category as the South China Sea and Taiwan.
Earnest, outlining Obama's longstanding thinking about launching new air strikes in Iraq, noted that protecting US personnel was a core concern for the US president.
A core concern is whether medical tourism diverts resources from public components of health systems in destination countries [ 30].
