In this article based on her speech to the Economic Science Faculty at the University of Buenos Aires on April 12, 2012, the author begins by asking the question: Does the charism of unity have something to say to contemporary culture? She presents Chiara Lubich’s experience of unity and her vision for contributing to a more united and peaceful world. Looking briefly at the cultural situation i...

The purpose of this paper is to examine the effect of social networking sites’ (SNSs) characteristics on Egyptians’ perception and attitude towards the 25/30 uprisings, also known as the “Arab Spring”. Data were obtained from 422 Egyptian university students using SNS by means of questionnaire. Structural Equation Modeling (SEM) was conducted to test the research hypotheses. The study results i...

The category of admissible (in an appropriately modified sense of representation theory of totally disconnected groups) semi-linear representations of the automorphism group of an algebraically closed extension of infinite transcendence degree of the field of algebraic complex numbers is described. Let k be a field of characteristic zero containing all ℓ-primary roots of unity for a prime ℓ, F ...

As a matter of the fact that online social networks like Twitter, Facebook and MySpace have experienced an extensive growth in recent years. Social media offers individuals with a tool for communicating and interacting with one another. These social networks enable people to stay in touch with other people and express themselves. This process makes the users of online social networks active cre...

We describe the mechanization of recent examples of compositional reasoning, due to Charpentier and Chandy [4]. The examples illustrate a new theory for composition proposed by Chandy and Sanders [2, 3], based on the so-called existential and universal properties. We show that, while avoiding hand proof mistakes, a such compositional reasoning can be mechanized quite straightforwardly. We also ...

Are companies, churches, and states genuine agents? Or are they just collections of individual agents that give a misleading impression of unity? This question is important, since the answer dictates how we should explain the behaviour of these entities and whether we should treat them as responsible and accountable on the model of individual agents. Group Agency offers a new approach to that q...

Here we report that synchronous surfacing in male bottlenose dolphins is associated with alliance membership and that synchrony between members of cooperating alliances is more common during social behaviour than during nonsocial behaviour, especially during bouts of ‘intense’ social behaviour (e.g. mounting, displays, chasing) with female consorts. Alliances of three males varied in the degree...

The effective action for type II string theory compactified on a six torus is N = 8 supergravity, which is known to have an E 7 duality symmetry. We show that this is broken by quantum effects to a discrete subgroup, E 7 (Z), which contains both the T-duality group O(6, 6; Z) and the S-duality group SL(2; Z). We present evidence for the conjecture that E 7 (Z) is an exact 'U-duality' symmetry o...

(2) Let D be a non empty set, S be a non empty subset of D, f be a binary operation on D, g be a binary operation on S, d be an element of D, and d′ be an element of S such that g = f [:S, S :] and d′ = d. Then (i) if d is a left unity w.r.t. f , then d′ is a left unity w.r.t. g, (ii) if d is a right unity w.r.t. f , then d′ is a right unity w.r.t. g, and (iii) if d is a unity w.r.t. f , then d...