The phrase "a certain reduction in" is correct and usable in written English.
It can be used when discussing a specific but unspecified decrease in quantity, quality, or intensity in various contexts, such as economics, health, or environmental studies.
Example: "The study indicated a certain reduction in air pollution levels after the new regulations were implemented."
Alternatives: "a noticeable decrease in" or "a specific decline in".
"When we see the economic situation, it's not the moment to create conditions that would penalize growth by a certain reduction in spending," Mr. Mer said to reporters after the ministers' meeting today in Brussels.
Human activities induced a certain reduction in runoff.
At variance with many other tumours, the aetiology and pathogenesis of colorectal cancer have been partially clarified, so that we are now in the position to take preventive measures and to design surveillance programmes which might lead to a certain reduction in incidence and mortality.
"If prices are at a low level for an extended period of time, a correction in investment will become inevitable and that will lead to a certain reduction in output, but that will not be a deliberate act by the state," Dvorkovich said Friday, according to Reuters.
But it may be objectively assessed to what degree a certain reduction in concentration may be valid for a given flow-through chamber by making the CR Fl plot as explained above.
Currently, there is no consensus of a formal definition of failure, but most definitions reported focus around a failure to achieve a satisfactory %EWL or a certain reduction in BMI.
Lower slenderness limits may be defined as the slenderness producing a certain reduction, usually 5 10%%, in the column ultimate capacity compared to that of a non-slender column (Mari and Hellesland 2005).
A certain reduction was also noted in the heart although this result was statistically not significant due to variations in glucose uptake of WT mice (subcutaneous fat: 78%, epididymal fat: 70%; p<0.01; Fig. 8E) [27], [27].
Conversely, neutralization of each of the three secreted growth factors resulted in a certain reduction of the basal migration speed of MDA-MB-231 cells (Supplementary Figure S3B, S3D and S3F), which, as expected, was higher than that of MCF-7.
In the late spring, for instance, he learned that a change of sentence might be in the making for Clark, whose lawyer, it appeared, had asked the jurors who convicted him to approve a petition urging clemency; all but two of them had agreed, and Eriksson was given to understand that this augured an almost certain reduction in sentence.
In health care today, we are going through a tumultuous transition, with the new federal health reform law, escalating cost of health care, large mandatory cuts for doctors occurring in January, and certain reduction in Medicare financing in the fiscal-cliff negotiations.
