Coinfection in RNA virus populations results in two important phenomena, complementation and recombination. Of the two, complementation has a strong effect on selection against deleterious mutations, as has been confirmed in earlier studies. As complementation delays the purging of less-fit mutations, coinfection may be detrimental to the evolution of a virus population. Here we employ both det...

Let V be a set of cardinality v (possibly infinite). Two graphsG and G with vertex set V are isomorphic up to complementation if G is isomorphic to G or to the complement G of G. Let k be a non-negative integer, G and G are k-hypomorphic up to complementation if for every k-element subsetK of V , the induced subgraphs G↾K and G′↾K are isomorphic up to complementation. A graph G is k-reconstruct...

The complementation problem for nondeterministic automata on infinite words has numerous applications in formal verification. In particular, the language-containment problem, to which many verification problems are reduced, involves complementation. Traditional optimal complementation constructions are quite complicated and have not been implemented. Recently, we have developed an analysis tech...

To isolate new types of vesicular stomatitis virus (VSV) mutants, a four-stage screen was developed which identifies and characterizes mutants capable of complementing the defect in the VSV temperature-sensitive mutant tsG11. Two types of mutants of VSV, Indiana serotype, have been found by using the screen; they are new temperature-sensitive mutants which are, of necessity, not in complementat...

Dodge (1942, Dodge et al. 1945) provided the first example of complementation in N. tetrasperma. Beadle and Coonradt (1944) explored complementation in heterokaryotic strains with multiple components, in hope of determining degrees of dominance. With the advent of efficient methods for selecting auxotrophic mutations, series of mutants with the same requirement were tested for allelism by compl...

A new foundation is presented for the theory of subjective judgments of probability known in the psychological literature as “Support Theory.” It is based on new complementation operations that, unlike those of classical probability theory (set-theoretic complementation) and classical logic (negation), need not satisfy the principles of the Law Of The Excluded Middle and the Law of Double Compl...