The saliva and plasma fluoride (F) concentrations following intake of different doses of fluoride tablets were studied in six subjects. There was a close relationship between saliva F and plasma Fâ€¦ (More)

Abstract. The positive semidefinite zero forcing number Z+(G) of a graph G was introduced in [4]. We establish 1 a variety of properties of Z+(G): Any vertex of G can be in a minimum positiveâ€¦ (More)

1 The maximum positive semidefinite nullity of a multigraph G is the largest possible nullity 2 over all real positive semidefinite matrices whose ijth entry (for i 6= j) is nonzero whenever 3 {i, j}â€¦ (More)

Abstract. The positive semidefinite zero forcing number Z+(G) of a graph G was introduced in [4]. We establish 1 a variety of properties of Z+(G): Any vertex of G can be in a minimum positiveâ€¦ (More)

Abstract. The positive semidefinite zero forcing number Z+(G) of a graph G was introduced in [4]. We establish 1 a variety of properties of Z+(G): Any vertex of G can be in a minimum positiveâ€¦ (More)