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Our diploma theses are focused on horses participating in dressage competitions. In the literary review, we characterize this discipline, we describe its historical evolution, rules and we present some breeds mostly used in dressage competitions into the Czech Republic and abroad. Within the diploma theses, we are dealing with a statistical evaluation of the influence of age, color of coat, sex, breed and year of start on the dressage performance and on a number of participations in dressage competitions. Data from the Review of Sports Horses from 2010 and 2016 (published by the Czech Equestrian Federation) have been processed. Moreover, we have processed data from ranking of the best dressage horses for 2010 and 2016 which are also published by the Czech Equestrian Federation. The dressage performance has been evaluated on the basis of reached auxiliary points (AAP). We have evaluated statistically the influence of the same factors on the dressage performance at 200 best dressage horses around the world. These data are released by the Federation Equestre Internationale. Their performance has been rated on the basis of achieved points. We have processed and evaluated data using programme STATISTICA 2012. A sex factor from 2010 and a factor of a breed and of a year of the start in the both monitoring years have a statistically highly evaluated influence on the number of participations in dressage competitions. We have statistically evaluated the influence of the age, sex and breed factor on the dressage performance. It was alike at the most successful horses in the Czech Republic. Regarding the world rankings, only a factor of the start year has a statistically highly evaluated influence on the dressage performance. As for horses starting in the Czech Republic during the both monitoring years, the best results have been achieved by horses within the age of 13 to 16 years (3,33 PPB).A breed KWPN (4,84 PPB) and a group of stallions (3,44 PPB) have the statistically highly evaluated best dressage performance. The dressage performance in the Czech Republic is stable and it did not change remarkably from 2010 to 2016.

This diploma thesis deals with the quality of green chaff in the harvest of silage corn. It also comapres the measured figures of the filed choler in the working procedures and evaluates the impact of sharpness of the cutters on the quality of green chaff. The quality of the labour of filed choler is valued according to the length of green chaff. This diploma also focuses on the investment at the purchase of field choler.

The aim of the diploma work was to evaluate the performance of horses descended from the foundation stock Przedswit in show jumping and dressage competitions in the Czech Republic. The basis for the elaboration of this work was created by me in the monitored group of horses from 2008 to 2012. Database used for the evaluation was created from data belonging to overviews of sports horses as well as the online studbook of Czech warmblood. For statistic utilization we used GLM method. In case of statistical significancy we used multiple comparisons method Scheffe for evaluation of the differences between individual factors. The statistical software UNISTAT version 5.1 was used. In both categories we evaluated the effects of pedigree, year of the sports season, sex, horse breed, level of the competitions and number of starts. In show jumping we proved that effect of pedigree is statistically significant, the method of multiple comparisons showed that offspring by breed stallions Przedswit is most efficient and together with other three groups of horses are more efficient than horses which are offspring by Przedswit stallions and mares by Przedswit. In show jumping we found other three factors as statistically significant. First of them was year of the sports season, where we proved better performance of the horses who started in 2012 than horses who started in 2008. Second of the factors was the effect of age, where any significant different pairs wasn't founded, so we compared the averages and we found that 17 years old were on the top with 4,1188. The last highly significant effect was the level of competitions, where the most efficient were horses which jumped level "T" though they were the least numerous group. In dressage we found only one factor as statistically significant and it was level of competitions. With method of multiple comparisons we found significant differences between individual levels. As the most efficient were found horses which achieved of level "T", they were better than all of the other groups ("Z", "L", "S", "ST"). The least numerous group of "ST" was better than lower level groups ("Z", "L", "S") but worse than group "T". The group "S" was significantly better than groups "Z" and "L" but worse than groups "ST" and "T". The results of groups "Z" and "L" are appear to be the worst, although the largest group.

Diploma thesis is focused on a roller and prismatic bales, their the most important functional units and description this units followed by practical measurement selected parameters. First part contains a distribution presses on a round baller and square baller and their inclusion into agricultural machinery lines. The following describes the most important functional units of both types. Second part contains field-laboratory measurement, there are evaluated weight package parameters depending on its compression. Furthemore, performance is evaluated based on different parameters.

The diploma thesis deals with the issue of a stress load in the working environment, specifically of employees of the criminal police. The theoretical part provides a general definition of basic concepts such as stress, personality or resistance. It introduces the various types of stress, its symptoms, causes and possible responses to psychological stress. The larger section is devoted to stress in the working conditions. It describes the most common stressors, risk of a burnout and possibility of stress reduction in general and directly for the police officers. The knowledge gained from the theoretical foundations is applied in the empirical part. The aim of the empirical part is to find the level of stress load among respondents from the ranks of the criminal police using qualitative methods of investigation, interview, in combination with the use of a questionnaire Meister. This section focuses on the positive and negative factors in the workplace, preventive measures and assesses differences based on gender, age, length of practice or marital status.

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