International contributors from Cuba to Kazakhstan and most parts in between provide essays on topics such as
solar filaments and their eruptions, the time-distance helioseismology of sunspots, some peculiarities of research into multi-scale ionospheric irregularities by radio methods, solar type IV bursts at frequencies 10-30 MHZ, and a numerical study of formation and propagation of giant electric jets between a thundercloud and the lower ionosphere.
Specific topics include the origin of solar white-light flares, modeling the hemispheric pattern of
solar filaments, stellar atmospheres and the diamagnetic effect, observations of running waves in a sunspot chromosphere, and acoustic shocks in the quiet solar chromosphere.
