The phrase "a diminution in the number of" is correct and usable in written English.
It can be used when discussing a decrease or reduction in quantity or amount, often in formal or academic contexts.
Example: "The study revealed a diminution in the number of participants over the years."
Alternatives: "a decrease in the number of" or "a reduction in the number of".
Those of us old enough to recall the comprehensive news coverage of the Telegraph in the 1950s and 60s will wonder, yet again, whether it means a diminution in the number of stories carried by the paper.
For the TMT, a diminution in the number of perseverations was observed after training in both groups (main effect of Time, Table 4).
A diminution in the number of species in those aquatic communities linked to high salinity had been noted by Peralta and Fuentes (2005) and Scheibler and Ciocco (2011) in their investigations performed exclusively at the Carilauquen spring.
Although not systematically, a diminution in the number of sudden fluorescent concentration or reversely, of fluorescent local concentration leaving the evanescent field is indeed observable upon nocodazole treatment, in TIRF microscopy image series.
We also noted a diminution in the number of expected heterozygous animals (P < 0.0001).
Additionally, the TAp63-/ mice exhibited patches where there was a diminution in the number of hair follicles resulting in alopecia in these mice.
And in the three months since the federal benefits stopped, there has been no real diminution in the number of long-term unemployed and no notable change in the pace of the unemployed finding work.
The simultaneous diminution in the number of LWBS seeking medical consult for "orthopedic/trauma complaints" tends to corroborate this hypothesis.
In addition, in one case post-mortem examination revealed the presence of lymphoid cell infiltrate in the oesophageal myenteric plexus with diminution in the number of ganglion cells (Table 3).
The greater differentiation of the gland is manifested as permanent structural changes, consisting in the disappearance of TEBs and in a diminution of the number of TDs due to their differentiation into ABs and lobules.
The existence of strain in the film together with a diminution in the coordination number for adatoms at the edges of the islands are considered to be at the origin of the observed behavior.
