The phrase "a combination of decreasing" is grammatically correct and can be used in written English.
It can be used when discussing a situation where multiple factors or elements are collectively contributing to a reduction or decline in something.
Example: "The analysis revealed a combination of decreasing sales, rising costs, and increased competition that led to the company's financial struggles."
Alternatives: "a mix of decline" or "a blend of reduction".
Hondo gradually began to weaken due to a combination of decreasing sea surface temperatures and increasing forward motion.
In our cohort, despite good tumor response (as judged by a combination of decreasing Tg and radiological response), 4 patients refused further RAI therapy after ablation.
However, through a combination of decreasing subsequent cleavage processivity, altering the site of the initial ε-cleavage to favor the Aβ42 product line, or some combination, these effects can increase the relative level of production of Aβ42.
Due to a combination of decreasing birth rates and increasing longevity, the population of Europe is ageing and the proportion of older people (aged 50 or over) is predicted to rise to 44% by 2025 [ 1].
It illustrates a constant hazard rate over time (which is analogous to an exponential distribution of survival times), strictly increasing/decreasing hazard rates based on a Weibull model, and a combination of decreasing and increasing hazard rates using a log-Normal model.
Research in violent offender populations, linking the reactive aggression to specific brain regions, suggests that a combination of decreased prefrontal activity along with increased limbic activity (e.g., amygdala) is related to antisocial behaviour and reactive aggression2.
The higher catalytic efficiency of D77N toward C4 substrate was due to a combination of decreased Km and considerably increased kcat.
Running computer models of these results, they found that a combination of decreased evaporation from naturally lower temperatures and a greatly increased river flow caused the salinity to decline.
For inhibitors characterized by fast association rates to wild-type protease (ritonavir, amprenavir, and indinavir), additional substitutions resulted in a further reduction of affinity by a combination of decreased kon and increased koff.
The results showed that a combination of decreased soil loss (from 18.5 t ha−1 y−1 in 1995 to 13.2 t ha−1 y−1 in 2005) and increased sediment deposition (from 7.7 to 12.4 t ha−1 y−1) has led to a strong decrease in sediment yield (from 8.4 to 3.9 t ha−1 y−1) and the sediment delivery ratio (from 0.454 to 0.295).
Correlation between eGFR and gold-standard GFR (EDTA or iohexol) is poor due to a combination of decreased creatine production and decreased muscle mass.
