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Physiography projects and experiments intended for senior elementary school
MELICHAROVÁ, Eva
The topic of my thesis are physiography projects and experiments intended for senior elementary school. In the concrete, the thesis is dealing with studies of appearance of various projects and experiments in area of physiography in literature intended for students of senior elementary school and their usage in geography education. The attention is paid also to publicetions of special and non-fiction geography literature, encyclopedia. The theoretical part of the thesis is dealing with anylysis of given literature in vwhich is by the way viewed the measure of representation of projects and experiments from physiography. The experience part of thesis is resulting from knowledges and information gained right in foregoing theoretical part. The main readout of the thesis is tutorial manual (project sheets), which chapters are devoted to studying physiography subjects.
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Using biotechnological methods in beef cattle herds
ZATLOUKAL, Jakub
The aim of this dissertation consists in analysing the results of the biotechnological techniques (insemination, embryotransfer) for a selected herd of meat-type cattle raised in a foothills countryside dutiny 5 years (2002 {--} 2006) and their comparison with natural breeding. The results this obtained are presented in dependence on the breed, fater{\crq}s origin and calving month. The analysis involves 795 Charolais calves and 450 meat-type Siemental calves. In the Charolais group insemination gave 275 calves, while natural breeding gave 520 calves. In the case of meat-type Siemental group the corresponding numbers are 179 and 271, accordingly. After embryotranfer we have got 4 Charolais calves and 15 calves of the other breed. The work evaluates the influence of the technique of breeding on to the rate of calf grow, with this investigation being performed in dependence on the breed. The meat-type Siemental bulls have shown a significant difference (p {>} 0,05) in the live weight of the calves 120 and 365 days old. In this age bulls born after insemination have been heavier (183,9 kg, 527,9 kg) in comparison with bulls born after natural breeding (172,4 kg, 497,0 kg). Concerming Charolais bulls, no statistically significant difference in the live weight have been found. In addition, no significant influence of the mode of breeding on to the live weight has been found for heifers of both breeds. Concerning the effect of the calving month on the rate of grow, the meat-type Siemntal calves have shown a highly statistically significant (p {>} 0,001) difference in the live weight of calves born in March. The live weights of calves born in March and weighed at 120, 210 and 365 days have been 181,17 kg, 289,2 kg and 510,31 kg, these values being valid for calves after insemination. The corresponding values for natural breeding are lower, particularly 168,26 kg, 271,37 kg and 439,59 kg. In addition a statistically considerable difference (p {>} 0,01) in the live weight has been found for calves 120 days old if the calves were born in April. Insemination has led to a live weight of 194,5 kg, while natural breeding to 168,9 kg. In the group of Charolais calves a statistically significant difference (p {>} 0,01 {--} 0,05) has been found at the age of 365 days. Calves born after insemination had a higher live weight (462,85 kg) as compared to those born after natural breeding (432,85 kg). As concerns the parameters characterising fertility, the following ones have been analysed: the service period (SP), the birth-to-birth interval and the percentage of becoming pregnanat after the first insemination. For the whole period under investigation, the SP value for the Charolais calves (T 100) has been 89,19 days while for the meat-type Siemental calves (S 100) 80,04 days. As concerns the birth-to-birth period found for Charolais (381,32 days) and the meat-type Siemental (390,35 days), it may be stated that these results are satisfactory. The percentage of becoming pregnant after the first insemination has shown a downword trend for both breeds in the course of the years under study. Investigated paramentrs of growth and reproduction are markedly influenced by the breed.
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Bayesian Entropic Evolution
Gottvald, Aleš
We develop a quantitative and experimantally testable theory of evolution, based on Bayesian and Entropic concepts. Probability and information are given central roles in evolutionary processes. Substantial evidence is now available that all logically consistent probabilistic transformations, in evolutionary processes or elsewhere, obey fundamental laws of Bayesian Probability Theory. In particular, Bayes' Theorem and the maximum Entropy Principle imply many quantitative and testable consequences also in evolutionary processes, in full analogy with Statistical Mechanics. Every evolutionary process may be treated as a chain of Bayesian probabilistic interfereces from incomplete information. Only systems equipped with a Bayesian processing layer react most rationally to a changing information environment, which brings some evolutionary advantages.
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Evolution and Genetic Optimization of Higher-Order Shim Coils for NMR
Chládek, Jan ; Konzbul, Pavel ; Ošmera, P.
Evolutionary and genetic scholastic optimizations were explored for designing NMR gradient and shim coils. Some hierarchical self-adaptive algorithms, based on a concept of meta-optimization, were tested. Time-demands and quality of the solutions were compared for various optimisers. A broad range of contrasting features was found for different settings of governing parameters and for different constraint handling's. Therefore a fuzzy logic in meta-decision level and an adaptative barrier function were used for optimization of multi-modal objective function. The using of meta-level optimization of different parameters was identified as the major challenge for future investigations and improvements of the optimizers.
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The development and the prespective of the mobile connectivity in Czech Republic
Fialová, Ivana ; Toman, Prokop (advisor) ; Knobloch, Jan (referee)
Tématem této práce je mobilní připojení k internetu v České republice. Jsou rozebrány jednotlivé technologie, které umožňují tento typ připojení. Mezi nejstarší patří GPRS spolu se svou technologickou nadstavbou EDGE (někdy zvanou také eGPRS). Nejnovější technologií připojení je UMTS, které se stává středem zájmu jak operátorů, tak uživatelů (jde zatím o nejrychlejší možnost mobilního připojení v České republice). Práce dále hodnotí srovnání nabídek jednotlivých operátorů v České republice (bráno s ohledem na stav v květnu 2006). Při porovnání bere v potaz finanční stránku připojení a územní dostupnost. Výhledy mobilního připojení v rámci České republiky jsou odvozeny z dosavadního vývoje, stavu ve světe a aktuálních ohnisek zájmu vědců.
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