4,427 research outputs found

    Railcars From Canada: A Misapplication of the Countervailing Duty Law

    Get PDF
    This Note examines the countervailing duty law and how it was applied in Railcars. Part I discusses the MTA\u27s decision to award the subway car contract to Bombardier, Inc., a Canadian corporation. The countervailing duty proceeding and other legal actions initiated in response to the allegedly subsidized contract are also described. Part II provides a general background on the Act. Part III explains the procedure for conducting a countervailing duty proceeding under the Act. After each step in a countervailing duty proceeding is outlined, its application in Railcars is discussed. Finally, Part IV analyzes how the Act was misapplied in Railcars

    High Energy Quark-Antiquark Elastic scattering with Mesonic Exchange

    Full text link
    We studies the high energy elastic scattering of quark anti-quark with an exchange of a mesonic state in the tt channel with −t/Λ2≫1-t/\Lambda^{2} \gg 1. Both the normalization factor and the Regge trajectory can be calculated in PQCD in cases of fixed (non-running) and running coupling constant. The dependence of the Regge trajectory on the coupling constant is highly non-linear and the trajectory is of order of 0.20.2 in the interesting physical range.Comment: 29 page

    Learning to Live with the New Foreign Nongrantor Trust Rules

    Get PDF
    The Small Business Job Protection Act of 1996 (the 1996 Act) was intended to deal a heavy blow to the appeal of foreign trusts to U.S. persons. The results were mixed. On the one hand, the 1996 Act imposes an array of reporting requirements, imposes harsh penalties on failures to comply with these requirements, increases the interest charge imposed on taxes paid on distributions of accumulated income from foreign trusts, treats loans of cash from foreign trusts as distributions, and expands the kinds of gifts that can be treated as indirect transfers from foreign trusts. On the other hand, curiously, the 1996 Act encourages the creation of foreign trusts by its adoption of a set of criteria for foreignness that is both more objective than the criteria formerly used and more biased in favor of foreign status. This Article discusses how to create foreign trusts, examines their exposure and the exposure of their U.S. beneficiaries to U.S. income tax, and describes the reporting requirements imposed on their creators, their beneficiaries, and the trusts themselves. In addition to explaining the rules, this Article also considers the extent to which foreign trusts continue to be useful planning tools for U.S. persons

    Resistance, remission, and qualitative differences in HIV chemotherapy.

    Get PDF
    To understand the role of qualitative differences in multidrug chemotherapy for human immunodeficiency virus (HIV) infection in virus remission and drug resistance, we designed a mathematical system that models HIV multidrug chemotherapy including uninfected CD4+ T cells, infected CD4+ T cells, and virus populations. The model, which includes the latent and progressive stages of the disease and introduces chemotherapy, is a system of differential equations describing the interaction of two distinct classes of HIV (drug-sensitive [wild type] and drug-resistant [mutant]) with lymphocytes in the peripheral blood; the external lymphoid system contributes to the viral load. The simulations indicate that to preclude resistance, antiviral drugs must be strong enough and act fast enough to drive the viral population below a threshold level. The threshold depends upon the capacity of the virus to mutate to strains resistant to the drugs. Above the threshold, mutant strains rapidly replace wild-type strains. Below the threshold, resistant strains do not become established, and remission occurs. An important distinction between resistance and remission is the reduction of viral production in the external lymphoid system. Also the virus population rapidly rebounds when treatment is stopped even after extended periods of remission

    High speed motion in water with supercavitation for sub-, trans-, supersonic Mach Numbers

    Full text link
    The results of research for supercavitating motion in water at very high speeds comparable with sonic speed ~1500m/s are presented. At such speeds the water is a compressible fluid and the basic compressible hydrodynamics of supercavitating flows together with practical approaches and experimental data are considered. The theory of ballistic projectiles motion is developed with emphasis on the problems of maximal range, lateral motion prediction and problems of minimal declination, hydro-elastic effects, and resonant oscillation frequencies. One main purpose of the article is an attempt to advance the level of understanding of the problem of very high-speed underwater launch by a comprehensive review of previous research on this topic.http://deepblue.lib.umich.edu/bitstream/2027.42/84267/1/CAV2009-final72.pd

    Feedback-related EEG dynamics separately reflect decision parameters, biases, and future choices

    Get PDF
    Optimal decision making in complex environments requires dynamic learning from unexpected events. To speed up learning, we should heavily weight information that indicates state-action-outcome contingency changes and ignore uninformative fluctuations in the environment. Often, however, unrelated information is hard to ignore and can potentially bias our learning. Here we used computational modelling and EEG to investigate learning behaviour in a modified probabilistic choice task that introduced two task-irrelevant factors that were uninformative for optimal task performance, but nevertheless could potentially bias learning: pay-out magnitudes were varied randomly and, occasionally, feedback presentation was enhanced by visual surprise. We found that participants’ overall good learning performance was biased by distinct effects of these non-normative factors. On the neural level, these parameters are represented in a dynamic and spatiotemporally dissociable sequence of EEG activity. Later in feedback processing the different streams converged on a central to centroparietal positivity reflecting a signal that is interpreted by downstream learning processes that adjust future behaviour
    • 

    corecore