The phrase "a certain concern for" is correct and usable in written English.
It can be used when discussing a specific level of worry or interest regarding a particular issue or topic.
Example: "The report highlighted a certain concern for the environmental impact of the new policy."
Alternatives: "a particular worry about" or "a specific interest in".
The strings identified in step B, which already belong to a certain concern, are the K centroids for our clustering algorithm (i.e., the strings where others strings will be clustered).
The chapter focuses on MIL-STD-499, the now-canceled standard for systems engineering; it provides a starting point to review certain concerns for developing military projects, and moves on to cover other issues within systems engineering, including legacy systems, obsolescence, software development, and testing, and current case studies for developing military projects.
"There's emerging evidence to suggest there's certain concerns for health effects," said Brad Hutton, deputy commissioner at the New York State Department of Health's Office of Public Health.
One reason for this is a certain naïveté concerning techniques for assessing abnormalities in p53.
Of course, it's worth pointing out that the GOP seems willing to take up this wager -- their embrace of Paul Ryan's plan for entitlement spending demonstrates a certain lack of concern for when these outcomes manifest themselves as a result of ending Medicare.
The same moral value, sympathy for and assistance to people in need, grounds a certain degree of concern for others as a general moral duty and explains why a significantly higher degree of such concern is a moral ideal.
In an instant message on AOL, she summed it up: "The children with invisible friends often interrupted the interviewer to remind her, with a certain note of concern for her sanity, that these characters were, after all, just pretend".
