One of the wealthiest and most popular authors of the twentieth century was a doctor. His best known book included some vivid accounts of his experiences as a medical student. It is a masterpiece, but also provides the richest first-hand description we have of medicine in late Victorian London and is worth reading for that reason alone. William Somerset Maugham was born in 1874 into a family of...

Without doubt, Gerhard Roth belongs to a group of contemporary prominent neuroscientists in continental Europe who argue for deterministic interpretation brain science findings. In their opinion, mental phenomena can be completely traced back biological-neuronal processes. The human being is determined his behavior - claim that arouses highly theological and philosophical interest. Is freedom a...

Let G = (V,E) be a graph. A set S ⊆ V is a restrained dominating set if every vertex not in S is adjacent to a vertex in S and to a vertex in V − S. The restrained domination number of G, denoted by γr(G), is the smallest cardinality of a restrained dominating set of G. We define the restrained bondage number br(G) of a nonempty graph G to be the minimum cardinality among all sets of edges E′ ⊆...

A dominating set of a graph is a subset D of its vertices such that every vertex not in D is adjacent to at least one member of D. The domination number of a graph G is the number of vertices in a smallest dominating set of G. The bondage number of a nonempty graph G is the size of a smallest set of edges whose removal from G results in a graph with domination number greater than the domination...