2,389 research outputs found

    Varieties of capitalism, quality of government, and policy conditionality in Southern Europe: Greece and Portugal in comparative perspective

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    This paper, drawing primarily on the Varieties of Capitalism (VoC) theoretical approach to political economy and the institutional theory of Europeanisation with emphasis on the Quality of Government (QoG) approach, examines possible variation between Greece and Portugal, in terms of their responses to pressures from Europeanisation before the crisis, as well as to MoU conditionality during the crisis. The empirical evidence seems to vindicate the fundamental assumptions of the VoC approach about the impact of variation among member states of the Eurozone, in terms of models of capitalism/political economy, on the crisis in Greece and Portugal. However, QoG is identified as key explanatory variable for variation in adaptation/adjustment capacity between the two countries, especially during the crisis. Additionally, there seems to be no evidence that cultural aspects, such as the level of social trust/ capital, can account for variation in adaptation performance between the two countries during the crisis

    The future of the US Dollar and its competition with the Euro

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    Since the collapse of the Bretton Woods Global International System in 1971, the world economy has experienced significant currency volatility. The major economies of the world have addressed such volatility differently. The EU has chosen to follow a monetary union and introduced successfully a new currency. The U.S. has paid less attention to the fluctuations of the dollar and has pursued an independent monetary policy to promote national economic stability. Japan has seen its currency appreciate significantly. This paper argues that while trade and growth across the globe are doing well, financial developments are intensifying the competition between the U.S. dollar and the euro. Three possible future scenarios are developed and discussed.peer-reviewe

    Asymmetrical economic and institutional changes in the Western Balkans : cooperation with the European Union

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    The Western Balkans have historically been a poor area of Europe. The total population of the Western Balkans is 24.7 million. Ethnic differences of long standing have led to conflicts and to political and economic instability. Poverty and instability have combined to produce a vicious circle of institutional backwardness. Recent conflicts in Croatia, Bosnia-Herzegovina and Kosovo have aggravated an already adverse economic situation. GDP in 1999 was substantially lower than that in 1989. The EU plans to enter into contractual relationships with all the Western Balkans in the form of Stabilization and Association Agreements (SAAs). The pacts are aimed at helping to establish economic and political stability, to implement institutional reforms, to practice regional free trade and cooperation and to privatize the economies of Western Balkans. These are also the presumed goals of the Western Balkans. This study focuses on a review of the progress made by the Western Balkans toward meeting the above stated challenges. A main conclusion is that the attainment of these goals has been asymmetrical for economic, political and institutional reasons.peer-reviewe

    Evidences for Tsallis non-extensivity on CMR manganites

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    We found, from the analysis of MM vs. TT curves of some manganese oxides (manganites), that these systems do not follow the traditional Maxwell-Boltzmann statistics, but the Tsallis statistics, within the \QTR{em}{normalized} formalism. Curves were calculated within the mean field approximation, for various ferromagnetic samples and the results were compared to measurements of our own and to various other authors published data, chosen at random from the literature. The agreement between the experimental data and calculated MqM_{q} vs. TT^{\ast} curve, where TT^{\ast} is an effective temperature, is excellent for all the compounds. The entropic parameter, qq, correlates in a simple way with the experimental value of TcT_{c}, irrespect the chemical composition of the compounds, heat treatment or other details on sample preparation. Examples include q<1q<1 (superextensivity), q=1q=1 (extensivity) and q>1q>1 (subextensivity) cases.Comment: 12 pages, 3 figure

    Crystal Field and Dzyaloshinsky-Moriya Interaction in orbitally ordered La_{0.95}Sr_{0.05}MnO_3: An ESR Study

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    We present a comprehensive analysis of Dzyaloshinsky-Moriya interaction and crystal-field parameters using the angular dependence of the paramagnetic resonance shift and linewidth in single crystals of La_{0.95}Sr_{0.05}MnO_3 within the orthorhombic Jahn-Teller distorted phase. The Dzyaloshinsky-Moriya interaction (~ 1K) results from the tilting of the MnO_6 octahedra against each other. The crystal-field parameters D and E are found to be of comparable magnitude (~ 1K) with D ~= -E. This indicates a strong mixing of the |3z^2-r^2> and |x^2-y^2> states for the real orbital configuration.Comment: 12 pages, 6 figure

    Playing and Listening to Tailor-Made Notched Music: Cortical Plasticity Induced by Unimodal and Multimodal Training in Tinnitus Patients

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    Background. The generation and maintenance of tinnitus are assumed to be based on maladaptive functional cortical reorganization. Listening to modified music, which contains no energy in the range of the individual tinnitus frequency, can inhibit the corresponding neuronal activity in the auditory cortex. Music making has been shown to be a powerful stimulator for brain plasticity, inducing changes in multiple sensory systems. Using magnetoencephalographic (MEG) and behavioral measurements we evaluated the cortical plasticity effects of two months of (a) active listening to (unisensory) versus (b) learning to play (multisensory) tailor-made notched music in nonmusician tinnitus patients. Taking into account the fact that uni- and multisensory trainings induce different patterns of cortical plasticity we hypothesized that these two protocols will have different affects. Results. Only the active listening (unisensory) group showed significant reduction of tinnitus related activity of the middle temporal cortex and an increase in the activity of a tinnitus-coping related posterior parietal area. Conclusions. These findings indicate that active listening to tailor-made notched music induces greater neuroplastic changes in the maladaptively reorganized cortical network of tinnitus patients while additional integration of other sensory modalities during training reduces these neuroplastic effects

    Dynamic Collection Scheduling Using Remote Asset Monitoring: Case Study in the UK Charity Sector

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    Remote sensing technology is now coming onto the market in the waste collection sector. This technology allows waste and recycling receptacles to report their fill levels at regular intervals. This reporting enables collection schedules to be optimized dynamically to meet true servicing needs in a better way and so reduce transport costs and ensure that visits to clients are made in a timely fashion. This paper describes a real-life logistics problem faced by a leading UK charity that services its textile and book donation banks and its high street stores by using a common fleet of vehicles with various carrying capacities. Use of a common fleet gives rise to a vehicle routing problem in which visits to stores are on fixed days of the week with time window constraints and visits to banks (fitted with remote fill-monitoring technology) are made in a timely fashion so that the banks do not become full before collection. A tabu search algorithm was developed to provide vehicle routes for the next day of operation on the basis of the maximization of profit. A longer look-ahead period was not considered because donation rates to banks are highly variable. The algorithm included parameters that specified the minimum fill level (e.g., 50%) required to allow a visit to a bank and a penalty function used to encourage visits to banks that are becoming full. The results showed that the algorithm significantly reduced visits to banks and increased profit by up to 2.4%, with the best performance obtained when the donation rates were more variable

    Structural, magnetic and electrical properties of single crystalline La_(1-x)Sr_xMnO_3 for 0.4 < x < 0.85

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    We report on structural, magnetic and electrical properties of Sr-doped LaMnO_3 single crystals for doping levels 0.4 < x < 0.85. The complex structural and magnetic phase diagram can only be explained assuming significant contributions from the orbital degrees of freedom. Close to x = 0.6 a ferromagnetic metal is followed by an antiferromagnetic metallic phase below 200 K. This antiferromagnetic metallic phase exists in a monoclinic crystallographic structure. Following theoretical predictions this metallic antiferromagnet is expected to reveal an (x^2-y^2)-type orbital order. For higher Sr concentrations an antiferromagnetic insulator is established below room temperature.Comment: 8 pages, 7 figure

    Interplay of superexchange and orbital degeneracy in Cr-doped LaMnO3

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    We report on structural, magnetic and Electron Spin Resonance (ESR) investigations in the manganite system LaMn_{1-x}Cr_{x}O_{3} (x<=0.5). Upon Cr-doping we observe a reduction of the Jahn-Teller distortion yielding less distorted orthorhombic structures. A transition from the Jahn-Teller distorted O' to the pseudocubic O phase occurs between 0.3<x<0.4. A clear connection between this transition and the doping dependence of the magnetic and ESR properties has been observed. The effective moments determined by ESR seem reduced with respect to the spin-only value of both Mn^{3+} and Cr^{3+} ions
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