The ARENA08 conference, held in Rome in June 2008, gave an almost complete overview on applications of the new techniques radio and acoustic detection of electromagnetic showers generated by high-energy cosmic particles in air or in dielectric media. There are vast activities all over the world, and the progress is remarkable. This was displayed by more than 30 contributions to the conference r...

The paper provides a general equilibrium model to show how the incompleteness of international financial markets leads to insufficient industrial specialization and a depressed volume of goods trade. As international portfolio diversification is limited and productivity is uncertain, investors wish to maintain a diversified industrial structure, not specializing according to their comparative a...

K Kleidis, D B Papadopoulos, E Verdaguer, and L Vlahos Department of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece Department of Civil Engineering, Technological Education Institute of Serres, 62124 Serres, Greece Departament de Fisica Fonamental and Institut de Ciences del Cosmos, Universitat de Barcelona, Avinguda Diagonal 647, E-08028 Barcelona, Spain (Received 6 ...

An ejection mechanism consisting four reset springs, an electromagnet and a seed disk was designed for tray seeder. The motion conditions of seeds in the seed disk were theoretical analyzed and intensity and height of seed ejection were calculated. The motions of the seeds and seed disk were multi-body dynamic simulated using Cosmos modules plug-in SolidWorks software package. The simulation re...

The ‘Cosmos’ model and its application is a dynamic event distribution system, which generates and organizes sonic entities evolving on multiple time scales. Inspired by the stochastic event generation models that were developed by Iannis Xenakis, the Cosmos model proposes additional important aspects such as the self-similarity in the structure and emergent behaviour in the resulting sonic evo...

S OF COSMOS PROJECTS

LL. Ametller and P. Talavera Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Jordi Girona 5, E-08034 Barcelona, Spain Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Comte Urgell 187, E-08036 Barcelona, Spain Institut de Ciencies del Cosmos, Universitat de Barcelona, Diagonal 647, E-08028 Barcelona, Spain (Received 8 February 2...

Banks are required to hold capital primarily as a buffer against future losses and in order to reduce the exposure of the deposit insurer. However, as regulators and researchers have recognized, changes in capital requirements also affect bank portfolio behavior. It is possible that increased capital requirements may lead banks to increase their riskiness and thus increase their expected losses...

This paper analyzes the impact of the decision to contract ICT consulting on firms’ innovative incentives. The paper develops a theoretical model and estimates some of its implications for a sample of German firms. In particular, the paper estimates the average treatment effect of the decision to contract ICT consulting on firms’ innovative incentives, considering the role of endogeneity and un...

The performance of a given portfolio policy can in principle be evaluated by comparing its expected utility with that of the optimal policy. Unfortunately, the optimal policy is usually not computable, in which case a direct comparison is impossible. In this paper, we solve this problem by using the given portfolio policy to construct an upper bound on the unknown maximum expected utility. This...