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The HERMES experiment collected from 1995 to 2007 a wealth of deep-inelastic scattering data using 27.6 GeV longitudinally polarised electrons and positrons and various unpolarised as well as longitudinally and transversely polarised gas targets. This allowed for a series of diverse measurements. [...]

After fifty years of investigations, the nucleon structure is still far from being understood and continues to represent a unique test bench for QCD. Despite the enormous progresses achieved in five decades of deep-inelastic scattering (DIS) experiments, a number of crucial open questions are still on the carpet and subject of intense theoretical and experimental studies. [...]

The HERMES experiment has collected a wealth of deep-inelastic sca ering data using the 27.6 GeV polarized electron or positron beams at HERA and various pure gas targets, both unpolarized and polarized. is allowed for a series of unique measurements. [...]

Elementary processes associated with ionization of liquid water provide a framework for understanding radiation-matter interactions in chemistry and biology. Although numerous studies have been conducted on the dynamics of the hydrated electron, its partner arising from ionization of liquid water, H2O+, remains elusive. [...]

The Sn-modified TiO2 photocatalysts are prepared by low-temperature sol-gel processing based on organic titaniumand tin precursors with varied Sn concentrations (from 0.1–20 mol .%). The role of Sn dopant as thepromotor of the formation of TiO2 rutile crystalline phase is explained and the optimal Sn concentration forpreparation of efficient Sn-modified titania photocatalyst is determined. [...]