A method is described for mixing solutions in ampulla divers of about 10 μl gas volume. It is shown with control divers that the change in slope due to mixing is negligible. The technique has been applied to study the effect of substances on the respiration of rat peritoneal mast cells.
The nucleus (edge nucleus) of a point determining graph is Mens Nike Free Run defined by Geoffroy and Sumner to be the set of all points (edges) whose removal leaves the graph point determining. It is the purpose of this paper to develop the analogous concepts for Nike Free Run 2.0 totally point determining graphs, that is, graphs in which distinct points have distinct neighborhoods and closed neighborhoods.
An algorithm has been proposed which solves the transportation problem with fuzzy supply and demand values and the integrality condition imposed on the solution. This algorithm is exact and computationally effective, although the problem is formulated in the general way, i.e. its fuzzy supply and demand values can differ from each other and be fuzzy numbers of any type.
Perturbation expansions and new perturbation bounds for the matrix sign function are derived by using a simple technique. The perturbation expansions are then used to derive Fréchet derivatives, the condition number, and the first order perturbation bounds for the matrix sign function.