National Repository of Grey Literature 22,953 records found  beginprevious22944 - 22953  jump to record: Search took 0.70 seconds. 

Effectiveness of protective measures against spruce bark beetle (\kur{Ips typographus} (L.)) at selected localities of LZ Boubín
VAČKÁŘOVÁ, Tereza
The efficiency of various protective measures against the Spruce bark beetle (pheromone-baited traps, trap trees, poisoned traps - tripods.) and the impact of insecticide-treated trap trees on non-target organisms were studied in weekly periods in areas in the altitude of 1000m above sea level. Tree traps proved to be of much higher effectivity with an average of 3307 caught spruce bark beetles in comparison with pheromone-baited traps with only 457 beetles within the same period. Poisoned traps ? tripods baited with pheromone (FeSex Typo, producer ? Karel Ubik, CR) were more effective than pheromone traps and the average number of caught beetles was 1226. Among non-target insects caught in these traps were 61 species included 7 orders. The most common species was Thanasimus formicarius.

Fluid and structure interaction
Růžička, Martin
The subject of this thesis is the numerical simulation of the interaction of two-dimensional incompressible viscous flow and a vibrating airfoil. A solid airfoil with two degrees of freedom, which can rotate around the elastic axis and oscillate in the vertical direction, is considered. The numerical simulation consists of the finite element solution of the Navier-tokes equations coupled with the system of ordinary differential equations describing the airfoil otion. The time dependent computational domain and a moving grid are taken into account with the aid of he Arbitrary Lagrangian-Eulerian (ALE) formulation of the Navier-Stokes equations. High Reynolds umbers up to 106 require the application of a suitable stabilization of the finite element scretization. Numerical tests prove that used method is sufficiently accurate and robust.

Influence of various systems on housing and breeding of dairy cattle
DUBOVÁ, Dagmar
The trend in development of new technologies and machinery in the area of agriculture and animal husbandry shows an increasing number of robotized operations. Such trend mostly appears in dairy cattle breeding, which has its logical explanation due to the fact that high ratio of human labour in milk production is more than obvious. The basic prerequisite for a successful utilization of milking robotic systems is to provide dairy cattle with sufficient quantity of top quality food and water as well as to ensure their welfare. The aim of the bachelor?s work was to compare the influence of both stanchion housing using a milking pipeline method and loose housing with robotic milking system on basic categories of dairy cattle behaviour, milk efficiency and reproduction. The observation itself was executed in each housing system for the period of 24 hours, during which an interval method with a ten-minute interval mode was used. Basic life activity of dairy cattle such as: feed intake, standing, lying and movement were monitored. All data were collected and assessed under running conditions on a private dairy farm owned by Václav Dub in Boubín near Horažďovice. The task was carried out in a reconstructed housing, where both systems are in operation. During the day, the dairy cattle remained mostly in a lying position, from which 50,33 % were kept in stanchion housing and 49,54 % in loose housing. When being housed in a standing position, 23,78 % of the dairy cattle paid attention to feeding and 27,05 % of dairy cattle were robotically milked. Standing position represented 25,89 % in stanchion housing and 19,31 % in loose housing. The movement was only monitored with dairy cattle housed in free housing representing 4,1 %. After the milk efficiency was assessed, there were some statistically significant differences (P?0,001) found in milked milk as well as in a kilogram of protein. With respect to reproduction, the length of the insemination interval was recorded showing 129 days when being stanchion housed and 95 days when loose housed. The length of the service period of dairy cattle in stanchion housing was 144 days while dairy cattle milked robotically showed the length of 109 days. All in all, it was proved that a free movement has a positive influence on the milk efficiency, fertility as well as the welfare of dairy cattle.

Ramsey-type results for ordered hypergraphs
Balko, Martin ; Valtr, Pavel (advisor) ; Conlon, David (referee) ; Nešetřil, Jaroslav (referee)
Ramsey-type results for ordered hypergraphs Martin Balko Abstract We introduce ordered Ramsey numbers, which are an analogue of Ramsey numbers for graphs with a linear ordering on their vertices. We study the growth rate of ordered Ramsey numbers of ordered graphs with respect to the number of vertices. We find ordered match- ings whose ordered Ramsey numbers grow superpolynomially. We show that ordered Ramsey numbers of ordered graphs with bounded degeneracy and interval chromatic number are at most polynomial. We prove that ordered Ramsey numbers are at most polynomial for ordered graphs with bounded bandwidth. We find 3-regular graphs that have superlinear ordered Ramsey numbers, regardless of the ordering. The last two results solve problems of Conlon, Fox, Lee, and Sudakov. We derive the exact formula for ordered Ramsey numbers of mono- tone cycles and use it to obtain the exact formula for geometric Ramsey numbers of cycles that were introduced by Károlyi et al. We refute a conjecture of Peters and Szekeres about a strengthening of the fa- mous Erd˝os-Szekeres conjecture to ordered hypergraphs. We obtain the exact formula for the minimum number of crossings in simple x-monotone drawings of complete graphs and provide a combinatorial characterization of these drawings in terms of colorings of ordered...

Genus Haemophilus and laboratory examinations in medicine today
KADLECOVÁ, Jana
My bachelor´s thesis focuses on the most major pathogen of the genus named Haemophilus, and Haemophila influenzae. H. influenzae is an originator of more serious infections, mainly its type b, which is the most virulent organism, causing invasive diseases mainly with children and older people. It causes mainly meningitis and chronic obstructive pulmonary disease. In the theoretical part of my bachelor´s thesis I write about the genus Haemophilus and clinic significances of the most famous species which occur at present. The genus Haemophilus is an aerobic and a facultative aerobic gram that means it is a negative bacteria, which is characteristic for its arduous requests for accretion. I used some methods for the diagnosis. I used the following methods a test with growth factors, which is a common diagnostic method, which distinguishing Haemophilus according to their addiction to the growth factors. This method is financially very demanding and currently the mason being why its results are not so accurate. But thanks to a new technology a more modern method called MALDI TOF weight spektronomie (MS) was found, which is easier, quicker and more accurate than the first one. MALDI TOF enables a diagnosis of the most demanding pieces of bacteria, yeast and mushrooms. The MALDI TOF diagnosis is characterized by undisputed reliability and cost effectiveness. Lactam antibiotics, mainly antibiotics - co-amoxicilin and chloramfenikol are used as treatment methods against Heamophilus. Against serious infections can one protect themselves with a vaccination the Hib vaccination. In the practical part of my bachelor´s thesis I described some processes and laboratory diagnostics of the pathogen H. influenza by methods MALDI TOF MS and by the Test for growth factories in a microbiological laboratory named Synlab, czech s.r.o., in České Budějovice. The results of how frequently H. influenza occurred in the year 2013, were gained from of the previously mentioned laboratory information system and were transported into the other laboratory from a field office of general practisioners. The other aim of my bachelor´s thesis was to compare severity and of each method. HYPOTHESIS 1: The frequency of H. influenzae in the year 2013 depends on a season. HYPOTHESIS 2: The MALDI TOF MS method is reliable and fast for identification of the genus Haemophilus. The Test with growth factories is not so reliable and fast. From the results it is obvious that the frequency of H. influenzae depends on the season. Heamophilus are very demanding and sensitive bacteria for cultivation and they need optimal conditions for their accretion. In this season the viral diseases increase and they can affect the process of the treatment. During the comparison of these two methods I managed to prove that the second hypothesis MALDI TOF is useful in a diagnosis. This method is not demanding. And the result can be obtained in a few minutes. At the end of my thesis it can be said that the MALDI TOF MS method is fast, reliable and an efficient diagnosis tool for identification of microorganisms. MALDI TOF MS has become an effective method for taxonomic classifications and microbiological studies. The MALDI TOF MS method is fast and there are minimal costs for consumables in samples.

Validation of selected economic theories on macroeconomic data for the Czech Republic
Zoul, Lukáš ; Mirvald, Michal (advisor) ; Matula, Miloš (referee)
The main goal of the thesis is to explore selected economical hypotheses through theoretical conception applying macroeconomics data from the Czech Republic. This thesis includes the following hypotheses: budget deficits solved by increasing taxes, compromise between unemployment and inflation, low impact of budget deficits. To verify these hypotheses, there is a comparison with economic theories such as Laffer curve, which has showed that Laffer peak is at the level of 22 % taxation. Other used theory is the Phillips curve where correlation between inflation and unemployment rate is stronger based on yearly data than on monthly data. Theoretical model IS-LM has confirmed that multiplication effect could have caused the positive economic growth in 2010 and 2011. Even if economical hypothesizes are partially correct, they are not recommended for the government to determine their decisions. There are more efficient long-term solutions that can be used to solve challenges of the recent economic situation.

Personal Income Taxation in the Czech Republic and the United States of America
Doubravová, Lucie ; Rytířová, Lucie (advisor) ; Tepperová, Jana (referee)
This diploma thesis describes the topic of personal income taxation in the Czech Republic compared to the United States of America and on the case studies it compares the tax burden of the family with two children earning average income from employment in the Czech Republic and in the United States of America. The aim is to prove that the results comply with the OECD statistics saying that the tax burden difference between those two states is approximately the same. The fractional aim is to examine if the tax burden for the same family with the above-average employment income in the United States is much higher that it can be one of the motives why people enter or leave different labour markets. The second case study focuses on the differences in the taxation of the different tax return categories of the taxpayers and confirms the theory that the average benefit of 450 USD per year appears with taxpayers filing the married filing jointly tax return. The thesis also describes the international taxation basics with the Double tax treaty and the concepts of tax residence and taxation principles such as tax equity and efficiency.

Economic Impacts of Nosocomial Clostridium Difficile Infection in a Health Care Facility
Váchová, Eva ; Lešetický, Ondřej (advisor) ; Bednářová, Martina (referee)
Nosocomial infections represent for the health care providers serious economical and also health complications. The aim of this thesis is a comprehensive presentation of nosocomial infections. Second part focuses on a bacteria Clostridium difficile. This thesis analyzes epidemiological situation in a particular medical care facility together with the cost of therapy. The incidence of Clostridium difficile is, despite of the worldwide increasing trend, decreasing in the selected facility. Significant differences exist among individual departments in the amount of samples collected as well as in their rate of positivity for the bacteria presence. Data collected are applied to a German pharmacoeconomic model which compares vancomycin therapy with fidaxomicin therapy. On a group of 100 patients it was proved that more efficient is, despite of its higher price, treatment by fidaxomicin because it leads to a lower percentage of recurrences and morbidity and mortality decrease.

BIOFUELS - REASONS AND CONSEQUENCES OF ITS INTRODUCTION
Bogdanov, Igor ; Vostrovská, Zdenka (advisor) ; Munzi, Tomáš (referee)
The thesis aims to analyze the economic and environmental consequences of the regulation to mandatorily blend bio-components into the fuel and prove its inefficiency. The theoretical part summarizes in detail the reasons of introducing the regulation, including the legislative framework, and generational evolution of biofuels. The analytical part uses statistical analysis of time series and price and efficiency indices to evaluate the effectiveness of biofuels in relation to reducing greenhouse gas emissions. The impact of the introduction of biofuels on the economy is specified through fuel prices. The impact on engines as well as food prices and social environment is also mentioned.

The Opera Ensemble of Josef Kajetan Tyl Theatre Analysis
Kopřivová, Zuzana ; Riedlbauch, Václav (advisor) ; Šmíd, Ilja (referee)
The thesis is based on analyzing the opera department production that works within the multiensembled theater in Pilsen. The first part introduces the main factors that theater industry in the Czech Republic deals with, describes the different types of theaters, typology and their internal organization. The theoretical part ends with particular factors like efficiency and production concerning Josef Kajetan Tyl Theater. The theoretical part is followed by the practical one, that is fully dedicated to the particular opera ensemble in Pilsen. This section describes the economic and artistic differences and difficulties of this opera department as well as its strengths and weaknesses. Due to research and personal interviews with the most important people of this ensemble (the director of the theater, the head of the opera ensemble and the dramaturge) I could have observed and therefore analyze this ensemble from different views and perspectives. The conclusion of the thesis reveals whether the opera ensemble in Pilsen is successful or not.