The spatial domain has been further categorized into LSB substitution [13], histogram shifting (HS) [11, 17, 18, 19, 20], and difference expansion (DE) [10, 13, 14, 16, 21, 22].
Heterochromatin has been further categorized into facultative and constitutive heterochromatin.
On the basis of structural characteristics, members of this superfamily have been further categorized into several subfamilies.
In pig flocks, H1N1, as the predominant subtype in clinical surveys or in the NCBI Influenza resource, has been further categorized into classical swine H1N1 virus, human-like H1N1 virus and European avian-like H1N1 virus [ 6- 8].
The 151 mammalian adhesome components have been further categorized, using adhesion-localization data, into 90 core constituents that physically reside within integrin-adhesomes and 61 associated components that transiently interact with the core components (15).
These functions have been further categorized as (1) "selecting submissions for publication" and "rejecting those with irrelevant, trivial, weak, misleading, or potentially harmful content," and "(2) improving the clarity, transparency, accuracy, and utility of the selected submissions".
