The phrase "a second fragment of" is correct and usable in written English.
It can be used when referring to an additional piece or part of something that has already been mentioned or presented.
Example: "In the analysis, we will examine a second fragment of the original manuscript that sheds light on the author's intentions."
Alternatives: "an additional piece of" or "a further section of".
Briefly, using the vector pMObsFlag-HD-PTP [5](a generous gift from Dr. Mamoru Ouchida, University of Japan), we amplified by PCR two fragments of the coding sequence of HD-PTP: a first fragment of 535 bp contains the 5'-end of the coding region flanked by EcoRI and SalI restruction sites, and a second fragment of 798 bp contains the 3'-end flanked by NotI and SacII restriction sites.
A second fragment of 506 bp, covering parts of the ATP8 and parts of the ATP6 gene, was amplified using newly designed Triops specific primers.
In a second fragment, one of two CpGs sites was determined to be methylated in 50% of the clones sequenced in a 93 bp region).
Found in surface debris: fragment inscribed limestone, with legs of walking figure incised, and a second fragment with head of figure and part of inscription, fragment limestone statuette head, fragment alabaster statue ette?).
A third fragment consisting of the 3xP3-DsRed-FRT sequence was amplified from a transgenic fly line with a pBac{SAstopHD-DsRed} insertion, using primers containing NgoMIV site overhangs.
After both the state and federal courts rejected the attempts of Yoko Ono Lennon and EMI Records to enjoin the showing of Expelled: No Intelligence Allowed on the ground it used a 15-second fragment of John Lennon's Imagine, all of the plaintiffs in both cases have now withdrawn their claims and dismissed their cases.
A cerclage with a high strength non-absorbable suture #2 (FiberWire®, Arthrex, Naples U.S). was performed in the presence of a third fragment, or multifragmentary fracture.
Moreover, the contention delay-measuring time starts when a node places the first fragment of a packet at the beginning of a buffer and continues until the packet leaves the buffer for actual transmission.
Proteolytic digests of purified NBD1 revealed two major protease resistant fragments, one of ∼25 kDa and a second smaller fragment of ∼17 kDa.
A second biglycan fragment of 22 kDa was also identified by blotting and therefore possessed the carboxyl-terminal sequence.
But for various reasons, Quine and others advocated a restriction to a first-order fragment of Frege's logic, disallowing quantification into positions occupied by predicates.
