Resilience ethics: responsibility and the globally embedded subject

This article seeks to analyse the rise of ‘resilience ethics’, in terms of the shift in ethical approaches away from the hierarchical liberal internationalist constructions of the 1990s and towards broader and more inclusive understandings of ethical responsibility for global problems. This shift in ethical attention away from the formal international politics of inter-state relations and towards the unintended consequences of both institutional structures and the informal market choices of individuals has diversified understandings of global ethical responsibilities. It is argued that the recasting of ethical responsibility in the increasingly sociological terms of unintended and indirect consequences of socio-material embeddedness constructs new ethical differentials and hierarchies of responsibility. These framings have facilitated new policy practices, recasting interventionist policy-making in terms of the growing self-awareness and reflexivity of Western actors, reframing ethical foreign policy as starting with the choices of individual citizens, and, at the same time, operating to reify the relations of the market

Back to the future? The limits of neo-Wilsonian ideals of exporting democracy

International state-building has become central to international policy concerns and has marked a clear neo-Wilsonian shift in international thinking, spurred by the leadership of the United States and the European Union. Today's approaches insist on the regulatory role of international institutions and downplay the importance of locally-derived political solutions. This privileging of 'governance' over 'government' is based on the assumption that the political process can be externally influenced through the promotion of institutional changes introduced at the state level and pays less attention to how societal pressures and demands are constitutive of stable and legitimate institutional mechanisms. This article questions this approach and analyses the transformation in the assessment of the importance of the societal sphere. It considers how this shift has been shaped by current understandings of war and conflict, and how the prioritisation of governance has fitted with critical and post-positivist trends in academic thinking in international relations and security studies. The discussion is illustrated with examples drawn largely from the Balkans and the international regime in Bosnia-Herzegovina in particular

Hollow Hegemony: theorising the shift from interest-based to value-based international policy-making

Today, attempts to explain the post-Cold War shift away from interest-based to value-based policy-making are increasingly caught in a cleft stick between Post-Realist (e.g. neo-Gramscian and post-structuralist) revelations of hegemonic power relations and Post-Liberal (essentially Constructivist) assertions of the transformative power of ideas, communicative networks and emerging international norms. This paper suggests that neither Post-Realist nor Post-Liberal approaches are able to tell us much about the interrelationship between interests and ideas in the current historical conjuncture. This is because neither framework can easily countenance a disjunction between material `interests' and the discursive forms in which power is projected internationally. Using the ontological focus and epistemological framework adopted in Karl Marx's study of the crisis of political subjectivity, and the consequential retreat into idealism, of the German Ideology, this paper argues that a materialist grounding of ethical declarations of value-based policy does not necessarily lead back to the direct, or even indirect, interests of hegemonic powers. Rather, it indicates an era of `hollow hegemony' marked by the lack of instrumental policy-making and the inability to construct a clear political project cohering values, frameworks and strategic interests. Copyright 2007 SAGE Publications. All rights reserved. Not for commercial use or unauthorized distribution

Ion-implanted Nd:MgO:LiNbO₃ planar waveguide laser

Laser oscillation in an ion-implanted planar Nd:MgO:LiNbO3 waveguide is demonstrated for the first time to our knowledge. Details of the waveguide structure, spectroscopic properties, photorefractive effects. and laser performance are given. A simple calculation of the absorbed power threshold gives ~8mW, in fair agreement with the experimental value of ~17mW

Congested Traffic States in Empirical Observations and Microscopic Simulations

We present data from several German freeways showing different kinds of congested traffic forming near road inhomogeneities, specifically lane closings, intersections, or uphill gradients. The states are localized or extended, homogeneous or oscillating. Combined states are observed as well, like the coexistence of moving localized clusters and clusters pinned at road inhomogeneities, or regions of oscillating congested traffic upstream of nearly homogeneous congested traffic. The experimental findings are consistent with a recently proposed theoretical phase diagram for traffic near on-ramps [D. Helbing, A. Hennecke, and M. Treiber, Phys. Rev. Lett. {\bf 82}, 4360 (1999)]. We simulate these situations with a novel continuous microscopic single-lane model, the ``intelligent driver model'' (IDM), using the empirical boundary conditions. All observations, including the coexistence of states, are qualitatively reproduced by describing inhomogeneities with local variations of one model parameter. We show that the results of the microscopic model can be understood by formulating the theoretical phase diagram for bottlenecks in a more general way. In particular, a local drop of the road capacity induced by parameter variations has practically the same effect as an on-ramp.Comment: Now published in Phys. Rev. E. Minor changes suggested by a referee are incorporated; full bibliographic info added. For related work see http://www.mtreiber.de/ and http://www.helbing.org

Charge and Current Sum Rules in Quantum Media Coupled to Radiation

This paper concerns the equilibrium bulk charge and current density correlation functions in quantum media, conductors and dielectrics, fully coupled to the radiation (the retarded regime). A sequence of static and time-dependent sum rules, which fix the values of certain moments of the charge and current density correlation functions, is obtained by using Rytov's fluctuational electrodynamics. A technique is developed to extract the classical and purely quantum-mechanical parts of these sum rules. The sum rules are critically tested in the classical limit and on the jellium model. A comparison is made with microscopic approaches to systems of particles interacting through Coulomb forces only (the non-retarded regime). In contrast with microscopic results, the current-current correlation function is found to be integrable in space, in both classical and quantum regimes.Comment: 19 pages, 1 figur

Testing "microscopic" theories of glass-forming liquids

We assess the validity of "microscopic" approaches of glass-forming liquids based on the sole k nowledge of the static pair density correlations. To do so we apply them to a benchmark provided by two liquid models that share very similar static pair density correlation functions while disp laying distinct temperature evolutions of their relaxation times. We find that the approaches are unsuccessful in describing the difference in the dynamical behavior of the two models. Our study is not exhausti ve, and we have not tested the effect of adding corrections by including for instance three-body density correlations. Yet, our results appear strong enough to challenge the claim that the slowd own of relaxation in glass-forming liquids, for which it is well established that the changes of the static structure factor with temperature are small, can be explained by "microscopic" appr oaches only requiring the static pair density correlations as nontrivial input.Comment: 10 pages, 7 figs; Accepted to EPJE Special Issue on The Physics of Glasses. Arxiv version contains an addendum to the appendix which does not appear in published versio