'provincial hub' is correct and usable in written English.
You can use it when referring to a large town or city located in a province or state, which is the center of activity for the surrounding area. For example, "Toronto is the provincial hub of Ontario."
Spread across the twin banks of the Willamette River, this provincial hub of the Pacific Northwest has more than its share of natural beauty and an earnest, outdoorsy reputation.
The major employers in the Clutha district are linked to primary industries – including a dairy processing plant and freezing works – and for many years they have been forced to bus in workers from the provincial hub of Dunedin, which is over an hour away.
Figure 7B,C shows the distribution of connection lengths for a provincial hub (area V4) and a connector hub (area 46), suggesting that these hub types map onto the distinction proposed for functional connectivity [22].
We find that V4 makes the largest single contribution to motif
As the distinct functional roles were assigned to both the network nodes and edges, target attacks on all network nodes, R1 connector hub nodes, R2 provincial hub nodes, R3 connector non-hub nodes, R4 peripheral non-hub nodes, all network connections, intra-module connections and inter-module connections were thus examined separately.
To visualize the structural embedding of a provincial and a connector hub, we plotted two submatrices of macaque visual cortex, comprising area V4 (a provincial hub) and area 46 (a connector hub) together with their immediate topological neighbors (Figure 7B,C).
Hubs are shown as larger nodes, with provincial hubs depicted as circles and connector hubs depicted as triangles.
The participation index was further used to identify the hub structure of the system, classifying hub nodes as either provincial hubs (which are strongly connected to other nodes within their module) and connector hubs (which are strongly connected to nodes in other modules)12.
Nodes in the somatomotor and second dorsal attention networks (which were not hubs in the fed state) and nodes in the second visual network (which were connector hubs in the fed state) transitioned to being provincial hubs during the fasted state.
Provincial hubs are connected mainly to nodes in their own modules, whereas connector hubs are connected to nodes in other modules as shown in Fig. 5 [22].
Provincial hubs provide structure within the local community, and connector hubs mediate connections between multiple communities.
