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n-3 polyunsaturated fatty acids in prevention of cardiovascular diseases
Pavelka, Jan ; Kraml, Pavel (advisor) ; Černá, Milena (referee)
Clinical trials have documented beneficial effect of n-3 polyunsaturated fatty acids on health. Regular dietary intake of n-3 PUFAs decreases the risk of cardiovascular dieseas. n-3 PUFAs may be a safe and effective supplement to drug treatment for reducing the risk of myocardial infarction, arrhythmia and sudden cardiac death. n-3 PUFAs show antiatherogenic properties; e.g. they decrease inflammation, stabilize atherosclerotic plaques and prevent other chronic deseases. For primary prevention it is recommended to eat fish at least twice a week, people with documented coronary heart disease should consume 1 gram of n-3 PUFAs daily. Fish oil and oily fish (losos, tuna, trout, mackerel) are rich in EPA and DHA. ALA is found e.g. in flax seed oil.
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Residue analysis from archaeological ceramics using specific antibodies and mass spectrometry
Pavelka, Jaroslav ; Kučera, Lukáš (konzultant)
Important information preserved in the form of biological markers - so-called organic residues containing food residues - can be preserved on ceramics under special conditions. By analyzing them, it is possible to determine the type of food being prepared or consumed in the past. For this reason, a laboratory procedure based on the ELISA method (Enzyme-Linked Immuno Sorbent Assay) was developed, primarily aimed at determining the presence of denatured proteins from medieval ceramics, which uses available and certified kits for immunological analysis. The approved methodology is intended for scientific experts from the ranks of archaeologists, bioarchaeologists and immunologists working with archaeological material.
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Information System of Sports Club
Pavelka, Jan ; Burget, Radek (referee) ; Kunc, Michael (advisor)
Thesis includes introduction with overview of technologies for development of web applications and information systems, description of problems in development, analysis and specifications of requirements and description of implementation of information system of footballtennis club. System is implemented with use of technologies PHP, JavaScript, XHTML, CSS and MySQL. Bibliographic citation of thesis: PAVELKA, J. Information system of sport club . Brno: University of technology. Faculty of information technology. Department of information systems, 2007. 50 s. Bachelor's thesis. Supervisor of bachelor's thesis Ing. Michael Kunc.
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Cause of mechanical vibrations of Palašer synchronous motors and its removal
Pavelka, J. ; Šimek, J. ; Kobrle, P. ; Kokeš, Petr
The paper describes the procedure and the result of analysis of mechanical vibrations of mining machines at the Palašer mine in the Russian Federation. The cause of these vibrations was the change in the magnitude of the magnetic flux in the air gap. The simulations showed the possibility of eliminating these changes in\nmagnetic flux by injecting suitable voltages into the stator windings. The implementation of this injection is further described by torque variable component feed-direct compensation. Finally, oscillography records are presented before and after injection.
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Interferometric System for Length Calibration on a Metre Scale
Jedlička, Petr ; Mikel, Břetislav ; Řeřucha, Šimon ; Matěj, Z. ; Herman, O. ; Holá, Miroslava ; Jelínek, Michal ; Pavelka, Jan ; Číp, Ondřej ; Lazar, Josef
Interferometric system is designed to calibrate the measurement frame, used for periodic assessment of the inner geometry of the reactor active zone chassis. Calibration lenght is up to 3300mm.
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Study of laser wobbling welding process through the radiation of plasma plume
Mrňa, Libor ; Horník, Petr ; Jedlička, Petr ; Pavelka, Jan
During laser welding with wobbling to the vector of the welding speed adds trivial movement of the beam in the shape of a circle or other shapes. Therefore, the laser beam moves with much higher current speeds than during normal welding. The melting of material on the leading edge of the keyhole occurs periodically. This fact is reflected in the character of the radiation of plasma plume over the keyhole. Experiments were conducted in which it was obtained spectrum of plasma plume radiation by using autocorrelation function for different parameters of circular wobbling (circle diameter, frequency) and for different materials. In the spectra are found the higher harmonic frequency of wobbling. The results were also compared with the radiation of the plasma plume during pulsed laser welding where the laser beam also periodically melts the leading edge.
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Perspectives on ideologyin women's magazines
Kadlecová, Kateřina ; Šebesta, Karel (advisor) ; Osvaldová, Barbora (referee) ; Pavelka, Jiří (referee)
This thesis examines the current state of research on women's magazines and the possibilities of researching them as a part of the cultural industry and a specific genre, as which they are referred to by researchers such as Hermes (1995). In the thesis, an analysis is undertaken of the so-called exclusive women's magazines based on their coverage of politics and economy. The prevalent methodologies are those of critical discourse analysis, argumentation analysis, and, to a smaller extent, linguistics and literary theory.
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