Styshov A. Dynamic Processes in Ukrainian Lexical and Semantic Systems and Word-building of the End of the XXth century: A Study of Mass Media Language.

The dissertation focuses on the study of active processes in the development of Ukrainian mass media, vocabulary, semantics and word-building in the second half of the 80s as well as the 90s of the XX century, language means of mass media being regarded as the most dynamic and determining functional variety of literary language in realisation of modern lexical norm. The research highlights the main extra- and introlingual factors, which favoured the intensification of qualitative and quantitative changes within national language vocabulary; it also studies the major mechanisms of lexical nomination typical of the analysed period. The dissertation presents a great number of new lexicon, which has never been investigated before. Neologisation ranks central among all dynamic processes taking place in Ukrainian lexis ot he end of the XX century. The traditional definition of neologisms as well as the stages of their adaptation in language were specified. Structural, semantic and stylistic functions of occasionalisms were also analysed in the language of modern mass media. The application of lexicographic and lexico-semantic analyses made it possible to describe the most important thematic groups of lexico-semantic innovations. The amount of the actualized lexical units; semantic and stylistic specificity of socially reoriented units were defined; subgroups of passive vocabulary were analysed. The ways and means of word-building were thoroughly studied; the use of productive types of word-building in innovation processes were established. Modifications of the semantic structure of words were considered; the peculiarities of new foreign lexical units penetration and adaptation in language as well as the sources of Ukrainian vocabulary enrichment of the period in question were defined and explained.