Random dots moving with various velocity gradients were presented to observers; the motion was yoked to head movement in one condition and to no head movement in another. In Experiment 1, 12 observers were shown motion gradients with sine, triangle, sawtooth, and square waveforms with amplitudes (equivalent disparities) of 12' and 1 degrees 53'. In Experiment 2, 48 observers were shown only the...

We explore the S-wave and P-wave amplitudes for NNK and ΛΛK interactions using chiral perturbation theory to O(m s log m s). In contrast to the large corrections found in P-wave amplitudes in the nonleptonic decay of octet baryons, the NNK amplitudes receive only small corrections to their tree-level values. The uncertainty in the ΛΛK amplitudes is found to be large.

We studied, for the Kortweg–de Vries–Burgers equations on cylindrical and spherical waves, development of a regular profile starting from an equilibrium under periodic perturbation at boundary. The vicinity looks like periodical chain shock fronts with decreasing amplitudes. Further on, become decaying smooth quasi-periodic oscillations. After oscillations cease, wave develops as monotonic conv...

A bstract We study the formalism of Kosower-Maybee-O’Connell (KMOC) to extract classical impulse from quantum amplitude in context partial wave expansion a 2-to-2 elastic scattering. take two complementary approaches establish connection. The first one takes advantage Clebsch-Gordan relations for base amplitudes expansion. second is novel adaptation traditional saddle point approximation semi-c...