InhaltsangabeIntroduction: The High-energy Corona - Waves, Eruptions, Particles.- Introduction: The High-energy Corona - Waves, Eruptions, Particles.- Particle Acceleration During Flares.- Magnetic Complexity, Fragmentation, Particle Acceleration and Radio Emission from the Sun.- Review of Selected RHESSI Solar Results.- RHESSI Results - Time for a Rethink?.- Small Scale Energy Release and the Acceleration and Transport of Energetic Particles.- Large-scale Disturbances.- Large-scale Waves and Shocks in the Solar Corona.- Energetic Particles Related with Coronal and Interplanetary Shocks.- Particle Acceleration at the Earth's Bow Shock.- On the Existence of Non-maxwellian Velocity Distribution Functions in the Corona and their Consequences for the Solar Wind Acceleration.- Recent Research: Large-scale Disturbances, their Origin and Consequences.- Plasma of the Solar Corona.- Quasi-periodic Pulsations as a Diagnostic Tool for Coronal Plasma Parameters.- Pulsating Solar Radio Emission.