The degree distance index (DDI) is a vertex-degree weighted version of well-known that called by Wiener (WI). In extremal theory graphs, improving the bounds with best possible values worth investigating problem. this note, exact formulae DDI for four different types sum graphs in terms various indic...

Let G be a simple connected graph and {v_1,v_2,..., v_k} be the set of pendent (vertices of degree one) vertices of G. The reduced distance matrix of G is a square matrix whose (i,j)-entry is the topological distance between v_i and v_j of G. In this paper, we compute the spectrum of the reduced distance matrix of the generalized Bethe trees.

BACKGROUND The thermal burn is accidental and also is the hidden and worst complication of medical plaster application. This study evaluated clinical and aetiological profile and severity of plaster burns. METHODS In Department of Burns, Plastic and Reconstructive Surgery from 1st August 2014 to 31st December 2015, six patients with plaster burn were assessed for total body surface area and ...