The phrase "a clear decrease in the frequency" is correct and usable in written English.
It can be used when discussing statistical data, trends, or observations that indicate a reduction in occurrence or prevalence of a particular event or phenomenon.
Example: "The study revealed a clear decrease in the frequency of reported incidents over the past year."
Alternatives: "a noticeable drop in the frequency" or "a significant reduction in the frequency."
For prostate, breast and thyroid, there was a clear decrease in the frequency of new cases diagnosed during the summer months, followed by a transient increase in subsequent months.
In addition, l-arginine deprivation also induces a clear decrease in the frequency of proliferating CD4+ T cells (%CD4+BrdU+: 20.3±2.1% in the presence of l-arginine versus 2.1±0.3% in the absence of l-arginine, Fig. 1A).
Not only are the two targeted loci, PoX1 and PoX2, located in close proximity to roX1 and roX2, the targeting is also largely dependent on roX, because losses of roX1 alone or of roX1 and roX2 cause a clear decrease in the frequency of PoX targeting.
The results show a clear decrease, in the average and in the standard deviation of the length of the visibility area, as the carrier frequency increases in the range from 2 GHz to 17 GHz.
The results show a clear decrease in the minimum fluidization velocity with increasing pressure.
Unlike the KNG201 site, a clear decrease in high-frequency spectral ratios between 7 and 20 Hz can be seen for all of the PGAs mentioned above, and the clear shift of peak frequencies to lower ones can be identified for the two largest PGAs.
However, it is sometimes difficult to quantify the shift of peak frequencies, even though a clear decrease in high-frequency spectral ratios can be observed (see lower panels of Fig. 3b); this is due to the relatively wide peak at some sites.
The hematopoietic populations from the ATP-stimulated group showed a clear reduction in the frequency of GFP+ cells compared with controls, indicating a decrease in the ability of ATP-treated HSCs to reconstitute the hematopoietic system.
Also, signature analysis showed a clear decreased in those cytokines at T12 with a simultaneous increase in the frequency of regulatory cytokines, at similar levels to non-vaccinated dogs.
In parallel, the hippocampal recordings showed a clear decrease of the local spectral power amplitude in the range of theta frequency (Fig. 9C and D).
In the 90° specimens, fatigue strength showed a clear decrease under relatively low stress range.
