The phrase "by a progressive decrease" is grammatically correct and can be used in written English.
It is typically used to describe a gradual decrease in something over time. Example: "The company's profits were affected by a progressive decrease in consumer spending over the past few months."
Pathophysiology of IDD is characterized by a progressive decrease in proteoglycan content and cell density in the nucleus pulposus (NP).
Chorionic villi show strong expression in the first trimester, followed by a progressive decrease in the second trimester, which returns in the third trimester.
This was accompanied by a progressive decrease in the power density spectrum, amplitude, number, and duration of the uterine wall and abdominal surface electrical bursts.
The hardness and Young's modulus of the coatings increase with increasing Si concentration up to a maximum value of 26GPa and 430GPa, respectively, for the Cr0.94Si0.06N coatings, followed by a progressive decrease.
Thus, the changing behaviour reflected by a progressive decrease of the electron transfer rate with time must be associated to a loss of superficial hydrogen due to oxidation by oxygen from the air, as confirmed by X-ray photoelectron spectroscopy (XPS) analysis.
Development of GS was characterized by a progressive decrease in B, CD4 T and NK lymphocytes.
Our findings confirmed this by showing a progressive decrease in rupture pedicel force, concomitantly with finger drop sensitivity, throughout fruit ripening, along with a decrease in the SSC, as expressed by the Brix value (Fig. 1).
Cumulative hazard curves for increasing Cu concentrations in test water by sex and stratified by weeks showed a progressive decrease of risk over time.
In the porous layers with a low σc, there is an important accommodation of the deformation by micro-mechanisms resulting in a progressive decrease in the porosity toward the fault core.
This hypothesis has been supported by palaeoceanographic models that estimate a progressive decrease of ~ 4 °C in Mediterranean and Paratethys water temperatures as a result of the disconnection from the Indian Ocean (Karami et al., 2009, 2011).
Within a cohort of participants in a population-based breast cancer screening program in the city of Barcelona, the prevalence HRT peaked in 2002 at 11% in 50- to 54-year-olds and at 10.1% in 55- to 59-year-olds, followed by a sudden reversal and a progressive decrease [ 62].
