The phrase "a marked decline of" is correct and usable in written English.
It can be used to describe a significant or noticeable decrease in something, such as performance, quality, or quantity.
Example: "The study revealed a marked decline of interest in traditional media among younger audiences."
Alternatives: "a significant drop in" or "a noticeable decrease in".
In addition, a marked decline of neurotransmitters and down-regulation of Reelin mRNA expression were observed.
Although the city of Dortmund has long been a notorious hotbed of far-right activity, extremist groups have seen a marked decline of influence in recent years.
The scariest aspect of all of this is a marked decline of faith in any kind of truth among large swaths of the country, according to Mayer.
Key states such as California, New York and New Jersey have seen notable reductions in their state prison populations and, according to the Bureau of Justice Statistics, by year's end of 2012 there were approximately 6,937,600 people under the supervision of adult correctional systems nationally, a marked decline of about 51,000 offenders in one year.
This resistance, if one assumes hypoxia-adapted LSC to be a subset of total LSC, is likely to explain why BZ was found to determine a marked decline of BCR/Abl-positive chronic-phase LSC, but not their eradication [8].
We observed a marked decline of earthworm numbers and biomass during the course of the experiment.
While these concerns are being recorded it is also important to note that the implementation of the new policy on compulsory and free primary education (abolition of school fees) which has been introduced as part of PEDP might have led to a marked decline in numbers of children participating in COBET classes in recent years.
This species is indigenous to the eastern half of the United States and has experienced a marked decline in portions of its range in the last 25 years (Brodman and Kilmurry 1998; Caspar 1998; Jung 1993; Mierzwa 1998; Minton 1998; Moriarity 1998; Mossman et al. 1998).
However, it remains unclear whether patterns of incubation in the early laying phase, coinciding with a marked decline in likelihood of EPO in the blue tit laying sequence (Magrath et al. 2009), already predict when egg production will stop.
Commenting on her findings, Susan Reid, research director at ScotCen Social Research, said: "Today's findings show a marked decline in levels of prejudice towards lesbian and gay people in Scotland since we last asked in 2010.
There has also been a marked decline in exports of engineering goods, textiles and iron ore.
