Obama's peace offensive

Violence , Peace , and Peace Research

Offensive alliances in graphs

A set S is an offensive alliance if for every vertex v in its boundary N(S)−S it holds that the majority of vertices in v’s closed neighbourhood are in S. The offensive alliance number is the minimum cardinality of an offensive alliance. In this paper we explore the bounds on the offensive alliance and the strong offensive alliance numbers (where a strict majority is required). In particular, w...

Offensive r-alliances in graphs

Let G = (V , E) be a simple graph. For a nonempty set X ⊂ V , and a vertex v ∈ V , δX (v) denotes the number of neighbors v has in X . A nonempty set S ⊂ V is an offensive r-alliance in G if δS(v) ≥ δS̄(v)+ r,∀v ∈ ∂(S), where ∂(S) denotes the boundary of S. An offensive ralliance S is called global if it forms a dominating set. The global offensive r-alliance number of G, denoted by γ o r (G), i...

Do Offensive Words Harm People?

The harm thesis—the assumption that words harm people—is a defining feature of sexual harassment, hate speech, verbal abuse, and obscene telephone call (OTC) offenses. This thesis ignores the possibility that swearing can be advantageous, cathartic, or an acceptable substitute for physical aggression. Observational data, courtroom evidence and verbal abuse research reviewed here produce conflic...

The Peace

From the eminent point of view which the happy consummation of peace has led us to, we may survey at our leisure the condition of the European powers. Warned by the past, we look upon the present state of the world with a cautious, as well as a critical eye. According to our conception, the study of Mind, in its broad physiognomy of nations and dynasties, of religion and civilization, is the hi...