Therapeutic theatre and spontaneity: Goethe and Moreno

Moreno noted a similarity between a late 18th Century play by the great German scholar and artist, Goethe, and some elements of psychodrama, which can be substantiated; however, Goethe was not, as Moreno suggested, an early promoter of spontaneity. The similarities and contrasts between these two men are intriguing

Parallel Implementations of Cellular Automata for Traffic Models

The Biham-Middleton-Levine (BML) traffic model is a simple two-dimensional, discrete Cellular Automaton (CA) that has been used to study self-organization and phase transitions arising in traffic flows. From the computational point of view, the BML model exhibits the usual features of discrete CA, where the state of the automaton are updated according to simple rules that depend on the state of each cell and its neighbors. In this paper we study the impact of various optimizations for speeding up CA computations by using the BML model as a case study. In particular, we describe and analyze the impact of several parallel implementations that rely on CPU features, such as multiple cores or SIMD instructions, and on GPUs. Experimental evaluation provides quantitative measures of the payoff of each technique in terms of speedup with respect to a plain serial implementation. Our findings show that the performance gap between CPU and GPU implementations of the BML traffic model can be reduced by clever exploitation of all CPU features

Covert Ephemeral Communication in Named Data Networking

In the last decade, there has been a growing realization that the current Internet Protocol is reaching the limits of its senescence. This has prompted several research efforts that aim to design potential next-generation Internet architectures. Named Data Networking (NDN), an instantiation of the content-centric approach to networking, is one such effort. In contrast with IP, NDN routers maintain a significant amount of user-driven state. In this paper we investigate how to use this state for covert ephemeral communication (CEC). CEC allows two or more parties to covertly exchange ephemeral messages, i.e., messages that become unavailable after a certain amount of time. Our techniques rely only on network-layer, rather than application-layer, services. This makes our protocols robust, and communication difficult to uncover. We show that users can build high-bandwidth CECs exploiting features unique to NDN: in-network caches, routers' forwarding state and name matching rules. We assess feasibility and performance of proposed cover channels using a local setup and the official NDN testbed

Book review : International entrepreneurship in family businesses

J.C. Casillas, F.J. Acedo and A.M. Moreno (2007) International Entrepreneurship in Family Businesses, Edward Elgar, Cheltenham, United Kingdom, ISBN 978 1 845428792<br /

BILETA Response to IPO consultation to changes to penalties for online copyright infringement

Felipe Romero-Moreno, & James G H Griffin, 'BILETA Response to the UK IPO Consultation on Changes to Penalties for Online Copyright Infringement', August 2015.This is a collaborative submission from a group of academics based in the UK with expertise in Information technology law and related areas. The preparation of the response has been funded by the British and Irish Law Education Law and Technology Association (BILETA http://www.bileta.ac.uk/Home/). This response has been prepared by Dr. Felipe Romero Moreno (University of Hertfordshire) and Dr. James Griffin (University of Exeter). It has been approved by the Executive of BILETA and is therefore submitted on behalf of BILETASubmitted Versio

Conditions for Generic Initial Ideals to be Almost Reverse Lexicographic

Let $I$ be a homogeneous Artinian ideal in a polynomial ring $R=k[x_1,...,x_n]$ over a field $k$ of characteristic 0. We study an equivalent condition for the generic initial ideal \gin(I) with respect to reverse lexicographic order to be almost reverse lexicographic. As a result, we show that Moreno-Socias conjecture implies Fr\"{o}berg conjecture. And for the case \Codim I \le 3, we show that $R/I$ has the strong Lefschetz property if and only if \gin(I) is almost reverse lexicographic. Finally for a monomial complete intersection Artinian ideal $I=(x_1^{d_1},...,x_n^{d_n})$, we prove that \gin(I) is almost reverse lexicographic if $d_i > \sum_{j=1}^{i-1} d_j - i + 1$ for each $i \ge 4$. Using this, we give a positive partial answer to Moreno-Socias conjecture, and to Fr\"{o}berg conjecture.Comment: 10 page