Europe and the other: Non-European concepts of civil society
The idea and contributions of this collection of articles on “Non-European concepts of civil society” originate from a European research project. The European Civil Society Network (CiSoNet) deals with a highly important aspect of European integration and enlargement, namely, the emergence, dynamics, and perspectives of a European-wide civil society. Ci- SoNet is embedded in the EC’s 5th Framework Programme’s Key Action on “Improving the socio-economic knowledge base”, spanning a period of work from 2003 to 2005. Its aim is to stimulate cross-disciplinary research concentrating on transnational dimensions of civil society, and thereby to contribute to the establishment of a European research area within the social sciences and the humanities.
Qu'est-ce que le développement?
Le developpement est toujours la combinaison d'attributs universels de la modernite (difficiles a isoler) et d'un mode chaque fois different de modernisation repondant a des specificites culturelles et nationales : nature de l'elite dirigeante, relation aux anciennes categories sociales, liens avec les pays les plus avances. La modernisation, dans la mesure ou elle est volontariste, va a l'encontre de la differenciation entre prive et public, entre politique et economie, concue par Max Weber comme un des attributs de la modernite. Tandis que, dans les pays actuellement avances, il y a eu convergence de l'appel universaliste a la modernite et de l'appel nationaliste a la modernisation, dans les pays a economie dualiste et desarticulee, il y a dissociation entre la mobilisation politico-culturelle et les transformations techniques et economiques
Thermal incompatibility analysis of metal-ceramic systems based on flexural displacement data.
The feasibility of simple tests or analytical methods for prediction of residual stress states in metal-ceramic (MC) prostheses has not been demonstrated. Biomaterial metal-ceramic strips have been proposed to provide sensitive measures of transient and residual stress states through the measurement of midpoint deflection after cooling from the ceramic sintering temperature. The objective of this study was to apply the elastic-viscoelastic analogy to calculate transient and residual midpoint deflections in MC biomaterial strips and to compare these values with deflections measured with a beam-bending viscometer (BBV). Calculations and measurements were made for five MC systems that were found from a clinical study to be "thermally compatible" systems. Metal strips, 64 mm in length, 3 mm wide, and either 0.5 mm, 1.0 mm, or 2.0 mm in thickness, were veneered with four 0.25-mm thick layers of opaque porcelain. Midpoint deflection of the MC strips (ceramic oriented in the posterior position) was measured during cooling from an initial temperature of 700 degrees C. In general, the directions of the measured residual deflections did not agree with the "textbook" convention that negative deflections are associated with positive thermal contraction mismatch (alpha(M) - alpha(c) > 0) regardless of metal thickness. For a metal thickness of 0.5 mm, the residual midpoint deflection for all thermal contraction mismatch cases, except one, was positive (upward deflection) whereas the residual midpoint deflections were all negative when the metal thickness was increased to 1 or 2 mm, independent of the thermal contraction mismatch. The best agreement between calculated and measured values of residual midpoint deflection (+16 microns vs. +14 +/- 2.3 microns, respectively was obtained for MC biomaterial strips with a Ni-Cr alloy (0.5 mm thick) while the largest difference (+346 microns vs. +61 +/- 43.8 microns) was obtained for MC bimaterial strips with a Au-Pd allow (0.5 mm thick). In all but one case, changes in deflection direction as a function of metal thickness were correctly predicted by the viscoelastic analysis. The results of this study indicate that a viscoelastic model is useful for estimating thermal compatibility conditions of MC systems.