The production and deployment of phagocytes are central functions of the hematopoietic system. In the 1950s, radioisotopic studies demonstrated the high production rate and short lifespan of neutrophils and allowed researchers to follow the monocytes as they moved from the marrow through the blood to become tissue macrophages, histiocytes, and dendritic… (More)
In this paper we classify digital covering spaces using the conjugacy class corresponding to a digital covering space.
In (Chaudhuri and Rosenfeld, 1996), metrics were developed for fuzzy sets u and v defined on the same support set S. These metrics are based on applying the Hausdorff metric to pairs of membership level sets (u-1 ([ tk, 1 ]), v-1 ([ tk, 1 ])), where tk E [0, 1] is a (possible) membership value of u or v. The metrics of (Chaudhuri and Rosenfeld, 1996) give… (More)
In this paper we study digital versions of some properties of covering spaces from algebraic topology. We correct and improve upon the presentation of assertions in Han's papers [10,11].