The phrase "a the frequency of" is not correct in English.
It appears to be a typographical error, as it combines "a" and "the" unnecessarily.
Example: "The frequency of the sound waves was measured in hertz."
Alternatives: "the rate of" or "the occurrence of".
Similarly, in cultures stimulated by Wnt3a or Activin A, the frequency of GFP+ cells in d3 noggin treated cultures was ∼65% of the frequency without inhibitors whilst the inclusion of either Dkk-1 or SB 431542 reduced the frequency of GFP+ cells to ∼25% of the untreated value for Wnt stimulated cultures and ∼10% of this value for Activin A stimulated cultures.
In the initial phase of the CSD, when cortical activity is enhanced (Fig. 4 A), the frequency of POm EPSPs increased and became arrhythmic (Fig. 4 B, trace 1).
In the subset of superficial bladder cancer (Stages O and A), the frequency of RON and MET overexpression was 19.4% (18 out of 93) and 32.3% (30 out of 93), respectively (Table 1).
For example, in the representative cell whose firing is shown in Figure 7 A, the frequency of EPSPs calculated during 60 s before the peptide was added was 1.4 Hz, while it increased to 3.02 Hz during 60 s in the presence of hypocretin.
a, The frequency of CD32high CD4+ T cells was measured by flow cytometry in PBMCs from ART-suppressed, HIV-1+ (n = 20) and HIV-1− (n = 8) donors.
Such records show the following unexpected features: (a) the frequency of the principal component (as initially obtained by measurement of the length of individual cycles on the record) is surprisingly constant at about 0.38 c./s., irrespective of wind conditions and state of the sea; (b) the records show that the range of frequencies present is small.
During EYT-A the frequency of the peak oscillation in the very low frequency (VLF) band matched the repetition rate of the sequence of body movements (0.02 Hz).
So unless we have a context, the frequency of a particular word doesn't tell us much, right?
As a result, the frequency of our television interludes has slipped.
As a result, the frequency of data is quarterly.
Other possibilities for symmetry-breaking are a modulation of the frequency of a significant change of the body form.
