An explicit formula for the chromatic polynomials of certain families of graphs, called ‘bracelets’, is obtained. The terms correspond to irreducible representations of symmetric groups. The theory is developed using the standard bases for the Specht modules of representation theory, and leads to an effective means of calculation. MSC 2000: 05C15, 05C50.

The preparation of gold nanoparticle (AuNP) assemblies was conducted by the synthesis and dipolar assembly of ferromagnetic core-shell nanoparticles composed of AuNP cores and cobalt NP shells. Dissolution of metallic Co phases with mineral acids afforded self-assembled AuNP chains and bracelets.

J ust when the silly season was starting to get on top of us, some welcome relief in the form of good solid science arrived on my desk. A study published in the BMJ looked at the therapeutic effect of wearing magnetic bracelets for pain control in osteoarthritis. I must admit my personal bias here. When I was the team doctor for one of our professional football clubs, we used to be inundated wi...

The Bruce Boyd site is an Early Woodland burial area on a sand knoll near Long Point, Lake Erie. Excavation uncovered several burials and offerings with cache blades, Meadowood points, trapezoidal gorgets, galena, copper beads, copper bracelets, iron pyrites and red ochre. The ceramics were cordmarked on both interior and exterior, some of them also showing punctates on the lip and exterior rim.

The body of scientific literature on transdermal alcohol testing dates back almost 70 years. The first viable method enabling this knowledge appeared in the 1980s in the form of an alcohol “sweat-patch”. Recently, transdermal alcohol monitoring bracelets have been used to measure transdermal vapor alcohol. Based on published research in this field, one can conclude that measuring alcohol transd...

A fundamental tension exists between safety in the common case and security under adversarial conditions for wireless implantable medical devices. We propose a class of new, fail-open defensive techniques for implantable medical devices that attempt to strike a balance between these two goals. We refer to these defensive techniques as Communication Cloakers. Cloakers are externally worn devices...

A method for calculating flow polynomials based on a transfer matrix is described. It is analogous to the method used for chromatic polynomials, although there is as yet no parallel development of the theory. The new method is applied to a family of bracelets, and the limit curves for the flow roots are obtained. There is an unexplained similarity between these calculations and the correspondin...