The phrase "a single area in" is correct and usable in written English.
It can be used when referring to one specific location or region within a broader context.
Example: "The research focused on a single area in the city known for its high levels of pollution."
Alternatives: "one specific region in" or "a particular zone in".
In the young, a single area in right inferior frontal gyrus manifested subsequent forgetting effects (20 voxels, peak Z = 3.98; x = 48, y = 42, z = −3).
Authorities concluded that ricin (known in the United States as Agent W or Compound W) would make a poor military weapon, since the compound degraded under the heat of firing and exploding, and very large quantities of it would have to be dispersed over a single area in order to have any effect on massed troops.
It is known only from a single area in dense coastal forest on limestone, on the main island of the Île des Pins.
However, this case only refers to a single area in the forest, and Poland's environment ministry could decide to increase logging in two other forest districts.
Unless we want to go the other way and contain visitors to a single area, in which case, let's add a couple of strip clubs to the Americana, fill pedestrian hands with tubes of slushy rum concoctions and prepare for the locusts.
Braak (1977), however, identified a single area in this region.
Whilst in non-invasive studies the postcentral cortex is treated as a single area, S1 in fact comprises distinct cytoarchitectonic areas with different functions (Nelson et al., 1980).
More recent studies have provided evidence that is in disagreement with a single area hypothesis involved in ToM processing.
This part of the exam goes more in depth on a single area of practice in the civil engineering.
It is a maiden application of ANFIS approach to a three unequal area hydrothermal system with GRC considering perturbation in a single area as well as in all areas.
The building lacks a fire sprinkler system or the sort of fire doors which keep fire contained in a single area, which are common in other commercial buildings.
