3,580 research outputs found

    Mediation, arbitration and negotiation

    Get PDF
    We compare three common dispute resolution processes { negotiation, mediation, and arbitration { in the framework of Crawford and Sobel (1982). Under negotiation, the two parties engage in (possibly arbitrarily long) face-to-face cheap talk. Under mediation, the parties communicate with a neutral third party who makes a non-binding recommendation. Under arbitration, the two parties commit to conform to the third party recommendation. We characterize and compare the optimal mediation and arbitration procedures. Both mediators and arbitrators should optimally filter information, but mediators should also add noise to it. We find that unmediated negotiation performs as well as mediation if and only if the degree of conflict between the parties is low

    Studies of thermionic materials for space power applications informal monthly report, sep. 1 - sep. 30, 1963

    Get PDF
    Thermionic materials for space power application - uranium carbide-zirconium carbide fuels and tungsten claddin

    History of the Department of Agricultural Leadership, Education and Communication

    Get PDF
    Names of the Department Administrators Location of Headquarters The Formative Years Practice Teaching Centers Cooperation with Teachers College Present Administration Organization Teaching: A Unique Role The Graduate Program Vocational Agriculture Contests Student Club Research Related Organizations Staff Recognition Reference

    Continuous spin reorientation in antiferromagnetic films

    Full text link
    We study anisotropic antiferromagnetic one-layer films with dipolar and nearest-neighbor exchange interactions. We obtain a unified phase diagram as a function of effective uniaxial D_e and quadrupolar C anisotropy constants. We study in some detail how spins reorient continuously below a temperature T_s as T and D_e vary.Comment: 3 LaTeX pages, 3 eps figures. Submitted to JMMM on 25 May 2006. Accepted on 21 July 200

    Nature versus Nurture: The curved spine of the galaxy cluster X-ray luminosity -- temperature relation

    Get PDF
    The physical processes that define the spine of the galaxy cluster X-ray luminosity -- temperature (L-T) relation are investigated using a large hydrodynamical simulation of the Universe. This simulation models the same volume and phases as the Millennium Simulation and has a linear extent of 500 h^{-1} Mpc. We demonstrate that mergers typically boost a cluster along but also slightly below the L-T relation. Due to this boost we expect that all of the very brightest clusters will be near the peak of a merger. Objects from near the top of the L-T relation tend to have assembled much of their mass earlier than an average halo of similar final mass. Conversely, objects from the bottom of the relation are often experiencing an ongoing or recent merger.Comment: 8 pages, 7 figures, submitted to MNRA

    Studies of thermionic materials for space power applications informal monthly report, oct. 1 - oct. 31, 1963

    Get PDF
    Thermionic space power material - isostatic pressing, vapor deposited tungsten, high temperature properties, cesium thermionic cell life testing, and irradiation studie

    Observational Tests of the Mass-Temperature Relation for Galaxy Clusters

    Get PDF
    We examine the relationship between the mass and x-ray gas temperature of galaxy clusters using data drawn from the literature. Simple theoretical arguments suggest that the mass of a cluster is related to the x-ray temperature as MTx3/2M \propto T_x^{3/2}. Virial theorem mass estimates based on cluster galaxy velocity dispersions seem to be accurately described by this scaling with a normalization consistent with that predicted by the simulations of Evrard, Metzler, & Navarro (1996). X-ray mass estimates which employ spatially resolved temperature profiles also follow a Tx3/2T_x^{3/2} scaling although with a normalization about 40% lower than that of the fit to the virial masses. However, the isothermal β\beta-model and x-ray surface brightness deprojection masses follow a steeper Tx1.82.0\propto T_x^{1.8-2.0} scaling. The steepness of the isothermal estimates is due to their implicitly assumed dark matter density profile of ρ(r)r2\rho(r) \propto r^{-2} at large radii while observations and simulations suggest that clusters follow steeper profiles (e.g., ρ(r)r2.4\rho(r) \propto r^{-2.4}).Comment: 25 pages, 10 figures, accepted by Ap

    Thermodynamic picture of the glassy state

    Full text link
    A picture for thermodynamics of the glassy state is introduced. It assumes that one extra parameter, the effective temperature, is needed to describe the glassy state. This explains the classical paradoxes concerning the Ehrenfest relations and the Prigogine-Defay ratio. As a second part, the approach connects the response of macroscopic observables to a field change with their temporal fluctuations, and with the fluctuation-dissipation relation, in a generalized non-equilibrium way.Comment: Proceedings of the Conference "Unifying Concepts in Glass Physics", ICTP, Trieste, 15 - 18 September 199

    Spin-glass model with partially annealed asymmetric bonds

    Full text link
    We have considered the two-spin interaction spherical spin-glass model with asymmetric bonds (coupling constants). Besides the usual interactions between spins and bonds and between the spins and a thermostat with temperature TσT_{\sigma} there is also an additional factor: the bonds are not assumed random {\it a priori} but interact with some other thermostat at the temperature TJT_{J}. We show that when the bonds are frozen with respect to the spins a first order phase transition to a spin-glass phase occurs, and the temperature of this transition tends to zero if TJT_J is large. Our analytical results show that a spin-glass phase can exist in mean-field models with nonrelaxational dynamics.Comment: 10 pages, late
    corecore