A set X of vertices of a graph is said to be dependent if X is not an independent set. For the graph G, let P-k(G) denote the set of dependent sets of cardinality k. In this paper, we show that if G is a connected graph on 2n vertices where n greater than or equal to 3 then \P-n(G)\ greater than or ...

The recursive Green function (RGF) method is used to obtain the surface and adatom RGFs for an electrified substate. The electrochemisorption (ECS) process is described, by invoking the Anderson-Newns (AN) model, whereby a self-consistent treatment of the ECS energy and charge transfer is provided. ...

The electron transmission properties of a molecular wire, containing a single impurity, are investigated in the context of the tight-binding approximation. The inclusion of overlap gives rise to nonorthogonal orbitals, whose treatment requires a tensorial formalism to obtain the Green function arisi...

Bone cell cultures were evaluated to determine if osteogenic cell populations at different skeletal sites in the horse are heterogeneous. Osteogenic cells were isolated from cortical and cancellous bone in vitro by an explant culture method. Subcultured cells were induced to differentiate into bone-...

A method to generate lower bounds for the channel assignment problem is given. The method is based on the reduction of the channel assignment problem to a problem of covering the demand in a cellular network by preassigned blocks of cells called tiles. This tile cover approach is applied to networks...

A simple formula for computing the generalized Hubbell radiation rectangular source integralis introduced. Tables are given to compare the numerical values derived from our approximation formula with those given earlier in the literature.

Many previous studies of obese rodents documented biochemical changes in pancreatic islets that contribute to hyperinsulinemia in vivo. Those studies used heterogeneous populations of islets, although the size of islets from obese rats ranges from 500 microm. Here, functional and morphological chang...

In the St. Lawrence middle estuary, the larvae and juveniles of rainbow smelt Osmerus mordax are infected with intestinal parasites (the cestode Proteocephalus tetrastomus). Such parasitism is suspected to impair growth rate, which may in turn influence the ability of smelt to migrate vertically and...

This paper studies the effect of varying substrate temperatures on the resonant charge-transfer process between a scattered particle and a solid surface. Two possible mechanisms for an effect are considered: (1) coupling of the transferring electron to the thermal motion of the target atom on the su...