First-generation annealed and second-generation sequentially annealed, highly crosslinked polyethylenes (HXLPEs) have documented reduced clinical wear rates in their first decade of clinical use compared with conventional gamma inert-sterilized polyethylene.
In this study, we compared the revision reasons, oxidative behavior, and small punch mechanical behavior of second-generation sequentially annealed HXLPE liners with those of first-generation annealed HXLPE liners in THA.
The results of our study support that second-generation sequentially annealed HXLPE has improved oxidative properties (as seen by a reduction in maximum oxidation index) compared with first-generation annealed HXLPE.
The purpose of this multicenter study was to assess the reasons for revision, oxidation, wear, mechanical behavior, and rim damage of second-generation sequentially annealed HXLPE retrieved acetabular liners and to compare these with first-generation annealed HXLPE retrieved acetabular liners as a control.
Heat generation functions were developed sequentially using varying degrees of conceptual complexity in modeling.
A novel approach to inexpensive responsiveness is to utilize the theory of Selective Evolutionary Generation Systems (SEGS), which sequentially and probabilistically selects a candidate optimizer based on the ratio of the fitness values of two candidates and the level of selectivity.
The order of the verb generation tasks were counterbalanced sequentially across subjects such that half of the subjects performed the task in the order [1 2 3 4 5], and the other half in the order [1 3 2 4 5].
During each parasite generation, hosts were drawn sequentially and exposed to a randomly drawn parasite with a probability of T. For the two locus version of the model, T was set to a value of 0.8, and parasites underwent two generations for each host generation.
According to the sequential cleavage model of Aβ generation, γ-secretase cleavage takes place sequentially every three to four amino acids along the α-helical surface of the substrate APP, thereby converting longer Aβ peptides into shorter species [ 2, 50].
This is done with the goal to avoid interference that may affect all the packets of the same generation, if they are transmitted sequentially.
To solve the large scale problems in a reasonable time, we also develop a two-stage algorithm, which decomposes the problem into planning stages such as aircraft-path assignment and robust schedule generation, and then solves them sequentially.
