1,819 research outputs found

    A New Approach to Resale Price Maintenance

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    Resale price maintenance has had a lively legal history. After court decisions under the Sherman Act and the Federal Trade Commission Act had discouraged it in the first third of the current century,\u27 it was encouraged by Fair Trade Acts in so many states as to develop an impractical cleavage between state and federal law. Congress responded by passing the Miller-Tidings Act in 1937. This made the relevant antitrust laws inapplicable to resale price maintenance contracts valid by the law of the state where resale is to be made. The amendment conformed in essential respects to the structure of the Fair Trade Acts, in relating only to merchandise identified by trademark or trade name in free and open competition with commodities produced or distributed by others, and in denying validity to horizontal agreements between manufacturers or between distributors

    Strangeness contribution to the vector and axial form factors of the nucleon

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    The strangeness contribution to the vector and axial form factors of the nucleon is presented for momentum transfers in the range 0.45<Q2<1.00.45<Q^2<1.0 GeV2^2. The results are obtained via a combined analysis of forward-scattering parity-violating elastic e⃗p\vec{e}p asymmetry data from the G0G^0 and HAPPEx experiments at Jefferson Lab, and elastic νp\nu p and νˉp\bar{\nu} p scattering data from Experiment 734 at Brookhaven National Laboratory. The parity-violating asymmetries measured in elastic e⃗p\vec{e}p scattering at forward angles establish a relationship between the strange vector form factors GEsG_E^s and GMsG_M^s, with little sensitivity to the strange axial form factor GAsG_A^s. On the other hand, elastic neutrino scattering at low Q2Q^2 is dominated by the axial form factor, with still some significant sensitivity to the vector form factors as well. The combination of the two data sets allows the simultaneous extraction of GEsG_E^s, GMsG_M^s, and GAsG_A^s over a significant range of Q2Q^2 for the very first time.Comment: 3 pages, 1 figure, will appear in AIP Conference Proceedings for PANIC 200

    X - Ray Flares and Their Connection With Prompt Emission in GRBs

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    We use a wavelet technique to investigate the time variations in the light curves from a sample of GRBs detected by Fermi and Swift. We focus primarily on the behavior of the flaring region of Swift-XRT light curves in order to explore connections between variability time scales and pulse parameters (such as rise and decay times, widths, strengths, and separation distributions) and spectral lags. Tight correlations between some of these temporal features suggest a common origin for the production of X-ray flares and the prompt emission.Comment: 7th Huntsville Gamma-Ray Burst Symposium, GRB 2013: paper 15 in eConf Proceedings C130414

    Simulation of transient energy distributions in sub-ns streamer formation

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    Breakdown and streamer formation is simulated in atmospheric pressure nitrogen for a 2D planar electrode system. A PIC code with multigrid potential solver is used to simulate the evolution of the non-equilibrium ionization front on sub-nanosecond timescales. The ion and electron energy distributions are computed, accounting for the inclusion of inelastic scattering of electrons, and collisionally excited metastable production and ionization. Of particular interest is the increased production of metastable and low-energy ions and electrons when the applied field is reversed during the progress of the ionization front, giving insight into the improved species yields in nanosecond pulsed systems
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