The researchers compared the rats' grid cell firing rates between the two compartments.
They theorised that when the rats understood the geographical relationship between the two compartments, their individual local maps became part of a larger, global map.
The exchange rate between the two compartments is described by the permeability-surface product (PS).
Schematically, the flow between compartments VMDW is represented in Figure 1. Figure 1 The flow between the eight compartments VMDW.
The mean difference between the two compartments was similar, whether it was the upper or lower compartment that contained the higher pressure.
K1, k2, k3, and k4 are rate constants (1/min) and describe the directional exchanges between the three compartments (cplasma represents the vascular compartment, c1 represents the free and non-specifically bound compartment, and c2 represents the trapped compartment).
The line of demarcation between the two compartments is the basal lamella of the middle turbinate, i.e. the attachment of the turbinate to the lateral nasal wall or medial orbital wall.
The rationale to design such a question was to simplify the gravitational force associated with the U-tube example and direct the respondent's attention solely to the osmosis process between the two compartments divided by the membrane.
We found excellent agreement between the levels of CGRP in the internal and the external jugular veins (Fig. 2), with a mean difference of −0.06 pmol/L between the two compartments.
