The phrase "an earlier segment of" is correct and usable in written English.
It can be used when referring to a part or portion of something that occurred or was presented before the current point in time or discussion.
Example: "In an earlier segment of the presentation, we discussed the key findings of our research."
Alternatives: "a previous part of" or "an earlier portion of".
The IRES encompasses both a downstream portion of 5'UTR and an early segment of the open reading frame [20].
Mr. Bharara — a Harvard graduate and inveterate quipster — was referencing an earlier segment about a new ranking of the country's top party schools.
After mocking Donald Trump in an earlier segment, he didn't mention his name in the edited version of the interview.
The tubule segments which express apical CLIC4 most prominently tend to be near glomeruli, suggesting they likely represent earlier segments of the proximal tubule.
Specifically in the kidney, SGLT2 is predominantly expressed in the earlier segments of the proximal tubule and is responsible for reabsorption of over 90% of the glucose filtered, 3, 4 while SGLT1, located in the distal segments, absorbs the remainder.
Peak route fidelity aims to capture the ability of an individual to recapitulate its route in regions where it can best do so; and initial route fidelity considers only those parts of the birds' routes that they are first likely to be in contact with following release as a pair (i.e. the early segment of flight during which the leadership contest is most probably decided).
Participants primarily looked at room cues during the early segment of each trial, but primarily focused on the apparatus as the trial progressed, suggesting distinct, sequential stimulus functions.
From this work, we conclude that muscle cramping and near cramping are common in a 161-km ultramarathon, largely involve the most active muscles, and tend to occur after the early segment of the race.
In this early segment of the processing difference, the control group's negativity was lateralized to the left hemisphere, whereas the moderate aphasia group showed higher amplitudes over the contralesional hemisphere at central and parietal sites.
