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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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Physiotherapeutic procedures in paraplegics after spinal cord lesion
Dušková, Tereza ; Vacek, Jan (advisor) ; Mende, Karel (referee)
Rehabilitation of patients with spinal cord injury begins immediately after the accident. Before begining a particular therapy, a specific neurological examination according to ASIA (American Spinal Injury Association) protocol is required, which allows to determine the level and severity of neurological damage. Specific rehabilitation procedures and methods are used to minimalize the neurological and functional deficits that occur after spinal cord injury. Procedures that are used include procedures from rehabilitation nursing, pasive and active movements, methods based on neurophysiology, techniques from breathing therapy, manipulative therapy, exercises with apparatus (MotoMed, Lokomat), FES, IMF-therapy, verticalisation, relaxation techniques, physical therapy and other. The goal of therapeutic rehabilitation in acute, subacute and chronic phase of spinal cord injury is maximal restoration of function, best use of remnant muscle potential and the formation of alternative mechanisms to reach the highest level of self-sufficiency and quality of life.
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Objectivization of a postural mechanism in patients with a spinal cord injury
Mirská, Eliška ; Vacek, Jan (advisor) ; Mende, Karel (referee)
It is important to maintain a posture via equilibrial and protective reactions in all activities of daily living. There is normal neurological finding in upper extremities in patients with a spinal cord injuries in the area from Th1 to Th7, muscles of the thorax are paralysed under the level of the lesion and when there is a complete2 damage of the upper pectoral spinal cord, abdominal muscles are always paralysed. There is an important part in a therapy of patients with a spinal cord lesion, which consists of an activation of the postural system by means of sensomotory stimulation exercise according to Janda called sitting on a cylinder. The aim of this study is to objectively evaluate the impact of the exercise on a cylinder on postural system of patients with lesion of postural muscles. Surface electromyography was chosen as the most suitable objective method . Special set of testing movements on a deckchair or on a cylinder was created. Selected patients were tested by exercises on a deckchair or on a cylinder before a stay in the centre. After a ten-day stay the patients are tested by the same set of exercises and evaluation of their muscular activities is performed. Results of our measurement lead to a conclusion, that sensomotory stimulation is valuable part of kinesiotherapy in patients with SCI in...
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Evaluation of patients, with lumbar vertebrogenic algic syndrome, using TETRAX
Škvorová, Kateřina ; Mende, Karel (advisor) ; Vacek, Jan (referee)
The topic of the thesis is evaluation of patients, with lumbar vertebrogenic algic syndrome, using TETRAX. The first part is theoretical. It summarizes anatomy and kinesiology of spine and describes verebrogenic algic syndrom focused on functional disorders. Finally, it includes description of basic principles of posturography and the device Tetrax, method of sensory-motor stimulation and using of 3D Spacecurl. In the practical part, I present the exercises that were tested on three probands on 3D Spacecurl and I examine their influence on movement changes of the probands.
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Rehabilitation of the carpal tunnel syndrome
Chorvátová, Magdaléna ; Vacek, Jan (advisor) ; Mende, Karel (referee)
In the theoretical part the thesis gathers basic information on carpal tunnel syndrome (CTS) - its etiology, pathophysiology and clinical picture. The thesis further describes the anatomy and function of hand following the CTS, the diagnosis of disease and treatment options. The thesis also presents possibilities of prevention when working with computers. In the practical part the thesis describes a case of a patient with the CTS disease and suggests using an appropriate treatment methods to postpone a surgery. For treatment application a female patient 36 years old diagnosed by a neurologist with severe stage of CTS has been selected. The patient completed 8 individual targeted therapies during four weeks with thorough investigations and various methods of treatment applied, particularly the mobilization, electrotherapy, thermotherapy including an auto-therapy brie-fing. The results showed that the therapy brought subjective and objecti-ve improvement and surgical treatment could be postponed. The impro-vement of subjective symptoms continues passing time interval after the physiotherapy. The practical part of this thesis has been limited by possible number of therapies as well as by the therapy duration.
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