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Discopathy and changes of posture
Červenková, Zuzana ; Vacek, Jan (advisor) ; Mende, Karel (referee)
In my bachelor thesis I have focused on discopathy and its effects on postural system of individuals. I concentrate on changes of intervertebral disc in lumbar part of the spine, as they are the most common. From physiotherapist point of view, I consider this issue essential for subsequent adequate and succesful therapy. Patients suffering from chronic low back pain present significant socio- economical problem. It is one of the most common problems, mainly because of lifestyle and absence of motional activity. Surprisingly, only a few authors deal with the effect of postural system based on discopathy. Key words: discopathies, intervertebral disc, chronic low back pain, postural system, changes of posture
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Covering sets in steganography
Vacek, Jan ; Holub, Štěpán (advisor) ; Hojsík, Michal (referee)
Steganography is a science which is interested in communication hiding. This work is focused on the most recent methods related to this topic. Mainly, it is matrix embedding, which uses coding theory, and sum and difference covering sets (SDCS). Rainbow coloring of grid graphs is used to receive even better results. This technique decrease amplitude of performed changes. It makes stegosystems less likely to be detected. Properties which describe behavior of each stegosystem are included for each technique. 1
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