Conserving Panamanian harlequin frogs by integrating captive-breeding and research programs von Lewis, Carrie H.R., Richards-Zawacki, Corinne L., Ibáñez, Roberto, Luedtke, Jennifer, Voyles, Jamie, Houser, Paul, Gratwicke, Brian

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Quantum Action-Angle Variables for the Harmonic Oscillator von Lewis, HR, Lawrence, WE, Harris, JD

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Finite-gyroradius effects on m = 1 and m = 2 instabilities of sharp-boundary screw pinches von Lewis, H.R, Turner, L

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Resistive magnetohydrodynamic equilibria in a torus von Montgomery, David, Bates, Jason W., Lewis, H. Ralph

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A second invariant for one‐degree‐of‐freedom, time‐dependent Hamiltonians given a first invariant von Bouquet, Serge, Lewis, H. Ralph

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Physical constraints on the coefficients of Fourier expansions in cylindrical coordinates von Lewis, H. Ralph, Bellan, Paul M.

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A toroidal boundary‐value problem in resistive magnetohydrodynamics von Bates, Jason W., Lewis, H. Ralph

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Hamiltonian description of toroidal magnetic fields in vacuum von Bates, Jason W., Lewis, H. Ralph

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Characteristics of the ion pressure tensor in the Earth's magnetosheath von Li, Xinlin, Lewis, H. R., LaBelle, J., Phan, T.-D., Treumann, R. A.

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An approach to screening for Coulomb wave functions von Lewis, H.R

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Time-advance algorithms based on Hamilton's principle von Lewis, H.R., Kostelec, P.J.

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Orbital resonances and chaos in a combined rf trap von Finn, J. M., Nebel, R., Glasser, A., Lewis, H. R.

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A direct approach to finding exact invariants for one‐dimensional time‐dependent classical Hamiltonians von Lewis, H. Ralph, Leach, P. G. L.

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Kinetic tilting stability of field‐reversed configurations von Barnes, Daniel C., Schwarzmeier, James L., Lewis, H. Ralph, Seyler, Charles E.

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Quantum electronics III. volumes I and II von Lewis, H.R.

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Classical and Quantum Systems with Time-Dependent Harmonic-Oscillator-Type Hamiltonians von Lewis, H. R.

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A tribute to Oscar Buneman/spl minus/pioneer of plasma simulation von Buneman, R., Barker, R.J., Peratt, A.L., Brecht, S.H., Langdon, A.B., Lewis, H.R.

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Class of Exact Invariants for Classical and Quantum Time‐Dependent Harmonic Oscillators von Lewis, H. R.

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Representations of one‐dimensional Hamiltonians in terms of their invariants von Lewis, H. Ralph, Leach, P. G. L., Bouquet, Serge, Feix, Marc R.

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An Exact Quantum Theory of the Time‐Dependent Harmonic Oscillator and of a Charged Particle in a Time‐Dependent Electromagnetic Field von Lewis, H. R., Riesenfeld, W. B.

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