For more complicated permutations, such as subtracting a negative number, count the number of negative signs involved.
Only our senses converge as we stare in silence unable to ask what holds us here with the wind biting our lips, our gloved fingertips, numbing us with something sub-zero, a negative count toward infinity.
where TP: true positive count; FN: false negative count; and FP: false positive count.
On the other hand, when scatter correction is done by subtracting projections, before image reconstruction, the overestimation of scatter counts in the background may potentially create negative counts.
However, in our reconstructions, these negative counts could not occur because the TEW scatter estimate was included in the denominator of the OSEM formula.
For patients who cleared gametocytaemia, time of the first negative count (followed by further negative counts) was taken as time of clearance.
Following the same logic, we can define negative counts for nAB to indicate negative statements ("gene A is not active in tissue B").
One positive gametocyte count at any time after treatment during the follow-up period was enough to define gametocyte carriage, while a complete set of negative counts during follow-up was required to confirm no carriage.
This helps to eliminate strategies with high false negative counts.
The false negative count and recall for each PHI category are summarized in Table 6.
