Thus, notwithstanding the numerous gene exchanges and acquisitions attributed to later stages of evolution, most, if not all, modern viruses and other selfish agents are inferred to descend from elements that belonged to the primordial genetic pool.
For example, the two groups at the right-hand side of the table include, respectively and in descending order, the elements oxygen, sulfur, selenium, and tellurium; and fluorine, chlorine, bromine, and iodine.
If a complete match was obtained these structures were tagged as congruent, while those which were not were ranked in descending order of elements that did not match.
An alignment of this element from different hosts revealed a very high level of identity (>88.2%) over the whole length of the consensus sequences, suggesting these elements descended from the same active ancestral element (supplementary fig. S4 B and table S3, Supplementary Material online).
An electronegativity scale (listing of elements in descending order of their tendency to attract and hold bonding electrons) provided a firm basis for the oxidation-state assignments on which oxidation-reduction definitions have become based.
By sorting these elements in descending order, we obtain another vector, (5).
The table lists the elements by descending E-score ranking.
This element descends across the front of the headdress, terminating on the forehead.
However, forcing ordinarily works on countable transitive models, so to work with countably closed models, an appropriate restriction is for the partial ordering to be countably closed (for every countable descending sequence, there is an element smaller than every member of the sequence).
The number of nonzero elements R is computed, and the elements are arrayed in a descending order to form vector P. The m number of biggest elements from vector P is retained.
Her best-known work is a series of reproductions of iconic paintings, most of them made in the nineteen-nineties, with the main elements missing—"Nude Descending a Staircase" with no nude, "The Valpinçon Bather" without the bather.
