The phrase "a slight progression" is correct and usable in written English.
It can be used to describe a small or gradual improvement or advancement in a particular context.
Example: "After several weeks of practice, I noticed a slight progression in my skills."
Alternatives: "a minor advancement" or "a small improvement."
Once activity returned to the main island of Surtsey, lava from Surtur I and its satellite vents, from August 1966 to April 1967, showed a slight progression back to more evolved compositions (MgO = 11.69 − 9.17 wt %, K2O = 0.33 − 0.49 wt %), but the last lava sampled in May 1967 was then the most magnesian in the suite (MgO = 11.82 wt % K2O = 0.35 wt %).
"There are companies that have shown great electric vehicles… but while these companies inspire us what they are doing is a slight progression of where we've been before".
France's annual report on racism has revealed that after a four-year downward trend, the country's "tolerance index" has shown "a slight progression towards more tolerance".
Guitarist Johnny Ramone relates: "We recorded them in the order they were written; we wanted to show a slight progression in song structure".
At the same time, comparisons of histological scores of TNF-K-treated animals at week 27 and week 45 showed a slight progression over time of arthritides.
In one study [ 3], type 2 diabetic patients with early-stage carotid atherosclerosis who were given aspirin showed a slight progression of intima-media thickness (IMT) of the carotid artery (0.033 ± 0.010 mm/year).
The occluder was inserted through a small incision into the ECA and was gently advanced into the ICA, until a drop in CBF of 75% or greater associated with a slight thread progression resistance was observed.
In the following days and weeks, only a slight further progression of CPM took place, indicating that approximately 90% of C14-ZOL had been released in an initial peak within the first 24 hours.
The kinetics clearly showed an increased phosphorylation after 10 min with slight progression up to 1 h.
Four patients' tumors became smaller after treatment and one patient has slight progression at the time of last followup.
