The phrase "after first filtering" is correct and usable in written English.
It can be used when describing a process that involves an initial step of filtering before proceeding to the next stage.
Example: "The data will be analyzed after first filtering out any irrelevant information."
Alternatives: "following initial filtering" or "subsequent to the first filter".
Figure 1 shows the distributions of PMV and MAF for marker data after the first filtering step (18,818 markers) and after the second filtering step (6138 markers).
The number of reads after the first filtering for Key sequences ("totalKeyPass") was 739,042.
Already after the first filtering step (human sequence against human genome) sequences of the hemoglobin, myosin, olfactory receptor, HOX gene and other sequences that are part of known gene families were eliminated from the data set.
After the first filtering, the degradome signals along each retained transcript were obtained from the BLAST results to provide a global view of the signal noise when compared to the signal intensity within a specific target binding site.
After the first filter used to collect HNO3, other two successive pads were used to collect these species, assuming that HONO and part of the NO2 would both react on the second, whereas only NO2, normally the most abundant, is collected on the successive filter.
Due to the combination of frequent deep diving and unstable pressure transducer performance near the surface, the quantile in the last filter was chosen to be large enough to smooth the noise in the series remaining after the first filter, yet small enough to detect the surface signal.
After the first filter from the electronic databases, the references were saved in an EndNote ® library and were reviewed to identify potentially relevant papers.
We measured the timing of optical activity during each cycle after first bandpass filtering the digitized signals.
Since most the probesets were designed to constitutive exons, it is possible that many constitutive exons are involved in the 1,107 exons that were left after the seventh filtering (Table 1).
After this second filtering, we have 1 (2) PTD, 6 (8) ITD, and 3 (0) fusion predictions in A08823 (A08878, respectively) (see Table 1).
