W. Mostert1,†, D. I. Pullin2, R. Samtaney3 and V. Wheatley1 1School of Mechanical and Mining Engineering, The University of Queensland, Brisbane, QLD 4072, Australia 2Graduate Aerospace Laboratories, California Institute of Technology, Pasadena, CA 91125, USA 3Mechanical Engineering, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-690...

Extending investigations of Métivier&Zumbrun in the hyperbolic case, we treat stability of viscous shock and boundary layers for viscous perturbations of multidimensional hyperbolic systems with characteristics of variable multiplicity, specifically the construction of symmetrizers in the low-frequency regime where variable multiplicity plays a role. At the same time, we extend the boundary-lay...

Job Losses and Child Outcomes Based on matched employer-employee data from Norway, we analyze the effects of worker displacement in 1986-1987 on their children’s earnings in 1999-2001. Using displacement of fathers to indicate an exogenous earnings shock we seek to identify whether family resources have a direct effect on children’s economic outcome. As in previous Scandinavian studies, we find...

General context: Shock barometry via petrographic analysis helps to understand cratering mechanics, especially mass movements in the central uplift, including its collapse in the late stage of cratering. Shock pressures recorded in lithologies of the central uplift may exceed 45 GPa, e.g., in the Vorotilovo core drilled into the center of the Puchezh-Katunki structure [1]. In other craters, sho...

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A self-generation mechanism of magnetic dipoles and the anomalous energy dissipation of fast electrons in a magnetized beam-plasma system are presented. Based on two-dimensional particle-in-cell simulations, it is found that the magnetic dipoles are self-organized and play important roles in the beam electron energy dissipation. These dipoles drift slowly in the direction of the return flow wit...

Supernova remnants have long been suggested as a class of potential counterparts to unidentified γ-ray sources. The mechanisms by which such γ-rays can arise may include emission from a pulsar associated with a remnant, or a variety of processes associated with energetic particles accelerated by the SNR shock. Imaging and spectral observations in the X-ray band can be used to identify propertie...

The Degasperis-Procesi equation can be derived as a member of a oneparameter family of asymptotic shallow water approximations to the Euler equations with the same asymptotic accuracy as that of the CamassaHolm equation. It is noted that the Degasperis-Procesi equation, unlike the Camassa-Holm equation, has not only peakon solitons but also shock peakons. In this paper, we study the orbital sta...

The worldwide growth slowdown after 1975 was a major negative fiscal shock; lower growth lowers the present value of tax revenues and primary surpluses and thus makes a given level of debt more burdensome. Most countries failed to adjust to the negative fiscal consequences of the growth implosion and so public debt to GDP ratios exploded. The growth slowdown therefore played an important role i...