The role of the media in electoral behaviour: A Canadian perspective

This work, divided in four sections, is a critical assessment of Canadian perspectives on the role of the media in electoral behaviour, notably on the roles media play in setting or responding to the agenda in the heat of election campaigns. The first section of the article highlights important Canadian methodological and empirical contributions to behaviouralism. The second section of the article, on culture, ideology, and discourse, illustrates general patterns of contrast between the Canadian and American political cultures through an exploration of the comparative role of negative and attack advertisements in election campaigns. The third section of the article illustrates how facets of the Political Economy of Canada exert an impact on media/campaign interactions. The fourth and final section of the article undertakes the task of situating media/campaign interactions within the legal-institutional regulatory context of the Canadian state. Here, while the potential impact on media content is apparent, the critical approach to the role of the media incorporates both the unacknowledged conditions and the unanticipated outcomes of the regulatory apparatus

Is the European Union in Need of a Competence Catalogue? Insights from Comparative Federalism

This article assesses the value of a detailed and rigid catalogue of competencies for curbing the process of European centralization and increasing the overall legitimacy of the EU. The article first details the reasons, and the actors who put the search for a catalogue of competencies on to the European agenda. Drawing from comparative federalism, it then lists five arguments why a detailed and rigid competence catalogue is neither feasible nor desirable. Finally, alternatives are provided leading to competence delimitation by other means. The main arguments are illustrated with reference to the European Convention's draft Constitutional Treaty. Copyright Blackwell Publishing Ltd 2004.

A subdivision algorithm for phase equilibrium calculations at high pressures

Phase equilibrium calculations at high pressures have been a continuous challenge for scientists and engineers. Traditionally, this task has been performed by solving a system of nonlinear algebraic equations originating from isofugacity equations. The reliability and accuracy of the solutions are strongly dependent on the initial guess, especially due to the fact that the phase equilibrium problems frequently have multiple roots. This work is focused on the application of a subdivision algorithm for thermodynamic calculations at high pressures. The subdivision algorithm consists in the application of successive subdivisions at a given initial interval (rectangle) of variables and a systematic test to verify the existence of roots in each subinterval. If the interval checked passes in the test, then it is retained; otherwise it is discharged. The algorithm was applied for vapor-liquid, solid-fluid and solid-vapor-liquid equilibrium as well as for phase stability calculations for binary and multicomponent systems. The results show that the proposed algorithm was capable of finding all roots of all high-pressure thermodynamic problems investigated, independent of the initial guess used