\chapter*{ACKNOWLEDGEMENTS}
\addcontentsline{toc}{chapter}{ACKNOWLEDGEMENTS}


First of all, I want to thank my supervisor prof. Saulius Juršėnas for optimism and ability to easily refresh my motivation to pursue career in science. 

\begin{figure}[b]\centering
    \includegraphics[height=3.4cm]{figures_PDF/TG.png}~~~~~~~~~~~~~~~~~~~~~~~~~~
    \includegraphics[height=3cm]{figures_PDF/Andrioniskioherbas.png}
\end{figure}



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