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The phrase "and the second samples" is correct and usable in written English.
It can be used when referring to a specific set of samples in a sequence or comparison, typically in a scientific or analytical context.
Example: "We analyzed the first samples for quality, and the second samples showed a significant improvement in results."
Alternatives: "as well as the second samples" or "along with the second samples".
Exact(2)
The first blood samples were collected at enrollment or shortly after (mean = 21 weeks, range = 3 38 weeks) and the second samples were collected during the follow-up visits (mean = 29 weeks, range = 14 40 weeks).
The first hair samples were collected at the enrollment visit (mean = 19 weeks, range = 3 36 weeks) and the second samples were collected during the follow-up visits (mean = 29 weeks, range = 15 40 weeks).
Similar(58)
The first sample was used for Exploratory Factor Analysis (EFA) and the second sample for Confirmatory Factor Analysis CFAA).
It then looked at two samples totalling 47 keywords, the first sample focused on the most-used words and the second sample on the keywords deemed to be most extremist.
The first sample was recruited in a suburban context (n = 265; 62% girls) and the second sample in an urban setting (n = 136; 61% girls).
where x(Pn1) and x(Qn2) comes from the first and the second sampler.
where x(P n1) and x(Q n2) comes from the first and the second sampler.
The adhesive was applied by a robot and the second "sample part" was applied manually.
The records of the first sampling and the second sampling were compared according to a design of paired samples by individual.
The first sample consisted of specimens from the northern part of the bay (sites 2 and 3) and the second sample of specimens from the southern part (sites 4 and 5) (Figure 1).
The first sampling location was on the top of the reactor (approximately 86 mm from the bottom), and the second sample was drawn via the dip tube (approximately 25 mm from the bottom).
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com