This becomes a particular problem when a crisis like the Syria situation occurs.
Radon becomes a particular problem if it impregnates hardware used in experiments.
This becomes a particular problem in an indoor setting.
It pits the president against public opinion, even among republicans, and becomes a particular problem in the key swing state of Colorado.
Indeed, IM became a particular problem in classrooms, with students often surreptitiously exchanging notes via wireless communication devices.
It's become a particular problem in some urban gay populations because it stimulates the libido while, at the same time, helping to reduce inhibitions.
At Hewlett-Packard, under the tumultuous stewardship of Carly Fiorina, the country's most visible female chairman and C.E.O., unauthorized disclosures to the press became a particular problem.
Mr. Riley, a Republican, said that too often the Red Cross shelters did not have all the necessary services or equipment, like showers and cafeterias, which became a particular problem when evacuees ended up living in the shelters for weeks.
The bidding wars have become a particular problem, said Chuck Sage, a broker with Douglas Elliman, because buyers were having trouble securing mortgages when bankers appraised the apartments for less than the purchase price.
The military, in guidelines to commanders, suggests that offenses like adultery become a particular problem when they affect discipline and order, as in cases that involve superior officers and their subordinates.
For the elderly and vulnerable, they have become a particular problem, despite the Direct Marketing Association launching guidelines in 2012 to help call-centre staff identify people unable to make an informed decision.
