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Evolutionary development of robotic organisms
Leibl, Marek ; Mráz, František (advisor) ; Holan, Tomáš (referee)
This work introduces a system for an evolutionary design of virtual organisms capable of effective movement in a simulated environment. The morphology and the control system are simultaneously developed by an evolutionary algorithms. The system also allows to design organisms in an editor and evolution of the control system with an immutable morphology. The quality evaluation and viewing of evolved organisms is done in a simulated 3D physical environment. The work put stress on the optimization of time and computing complexity of the evolutionary process. This optimization is achieved by using symmetry of organisms and their movement with HyperNEAT-generative encoding of synaptic values. Further optimization is achieved by limiting the variety of mutual module connections and focusing on the harmonic movement of organisms.
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Extent and use of advertisment on TV
Rozumová, Markéta ; Köppl, Daniel (advisor) ; Gerbery, Juraj (referee)
The bachelor's thesis "Extent and use of advertisement on TV (permission of product placement from June 1st , 2010)" focuses on the change in Czech television production, caused by adoption of amendment to the law, which allows the use of product placement as a way of commercial communication and ranks it among the commercial TV products. The thesis briefly describes the evolution of product placement from the historical beginnings, through the success in motion pictures to the permission in TV broadcasting. It also describes the Czech Broadcasting Act and the interpretation of this law by the Czech Radio and Television Broadcasting Council (RRTV), focuses in more detail on the situation in the Czech TV stations, on the manners of use of the product placement and possible benefits it may have comparing to classical TV commercial spots. The study compares public Czech TV to private TV Nova, shows the examples in TV programs, in which the products were placed. This thesis also presents the opinions of media experts, advertisers, ratings and interventions by RRTV and audience's opinions. The aim of the thesis was to find out and evaluate, whether the PP entered the TV programs successfully, if the expectations of advertisers and broadcasters were fulfilled and how it affects the viewers.
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Primary Cilia and its Importance in Cell Response to Ionizing Radiation Exposure and Chemotherapy Drugs.
Filipová, Alžběta ; Řezáčová, Martina (advisor) ; Hampl, Aleš (referee) ; Hofer, Michal (referee)
Primary cilia and its importance in cell response to ionizing radiation exposure and chemotherapy drugs. Ionizing radiation, metabolic and genotoxic stress affect the cytoskeletal stability and morphology of cells by causing DNA damage in the form of single or double stranded breaks, the latter being the most critical. When DNA damage occurs the cell cycle becomes arrested and the repair machinery is engaged; however, if this damage is not repaired the cell enters programmed cell death by apoptosis. Primary cilia have been shown to act as physical- chemical sensors and their biological functions include the perception of the extracellular milieu, the regulation of organogenesis and cell polarity, as such, they are dynamically regulated during cell cycle progression. Further, the impairment or loss of primary cilia leads to the development of ciliopathies and other diseases including cardiovascular disorders, arthritis and, ultimately, cancer. Moreover, the presence and temporary formation of primary cilia is essential for the repair process of certain cell types. This work is focused on the evaluation of primary cilia changes caused by ionizing radiation, metabolic stress or cytostatic drugs (taxol and doxorubicin) in vitro. Our results showed a significantly higher number of ciliated C2C12 cells observed...
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Comparison of Buddhism and Taoism as Philosophies and Attitudes Toward Life
Volková, Kateřina ; Blažková, Miloslava (advisor) ; Hogenová, Anna (referee)
This thesis is based on professional literature and deals with Buddhist and Taoist philosophies. At first both of them are analyzed separately. The evolution of Buddhist and Taoist is watched from the philosophical and historical point of view. The main aim of the thesis is to compare both philosophies. The comparison is based on general level. It is focused on four main areas which are for both philosophies essential: world, nature, society and human being. The last part of the comparison concentrates on real purpose Buddhist and Taoist philosophies. The different moments are stressed in this area especially. Part and parcel of this thesis is also the possibility of exploitation of Buddhism and Taoism in educational process.
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Determination of hydraulic characteristcs of clay suspensions
Petrová, Markéta ; Mls, Jiří (advisor) ; Handová, Zdena (referee)
This thesis is focused on determining the hydromechanical characteristics of clay suspensions, permeability and compressibility, where is the effective stress, the concentration of suspension and is the permeability. Because the compressibility or permeability can't be measured directly, I use Darcian mechanics of two-phase systems to compute the characteristics I wanted from a well- measurable quantities, measured in appropriate experiments. Work has been solved with the support of the project : Hydromechanical characteristics of clay suspensions. The first part deals with a mineralogical characteristics fylosilicates, characterization of kaolin deposits in the Bohemian Massif, physical chemistry of colloidal systems, electric double layers and electro kinetic potential. Experimental section follows later, which proceed from the assumption that the same concentration of kaolin suspension and an identical colloidal state, exposed to the same pressure-temperature conditions, exhibit the same values of hydro mechanical characteristics such as their evolution in time can be described as a continuous function. As the model, I chose the coagulated kaolin suspension. Coagulation are achieved by adding weight percent of solids . Suspension settles in a vertical cylinder of high with an inner diameter of , which...
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Psychological stress and its management
Štulhoferová, Radka ; Franková, Emilie (advisor) ; Jankůj, Miroslav (referee)
In these days psychological pressure and stress are relevant and actual because the times are fast-moving, living pace is faster and the life without stress does not exist anymore. Stress is playing more significant part in our life and most people has a lot of stressful experiences. The teoretical part is based on connections between psychological pressure and stress. Consequential part is focused on prevention and stress management. In the following part methodological procedure, data processing methods and evaluation of results are explained. The next part includes the research results and the final part state possible propositions and recommendations to solve the problem. The aim of the thesis is to characterise psychological pressure and its categories by mentioning examples, causes, effects and options management. On the basis of this executed research the aim is also to determine how students of University of Economics in Prague (VŠE) cope with these stressfull situations, how they respond to it and how they manage to have this influential factor under control, and to comment on the results and potencial recommendations to optimalise management of these situations.
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Comparison of selected mutual funds
Hort, David ; Veselá, Jitka (advisor) ; Ducháčková, Eva (referee)
The main task of this bachelor thesis is a comparison of selected debt and equity mutual funds based on the historical performance taking into account risk and the fees of these funds as well. The first, theoretically oriented, part of this work deals with the branch of collective investment in the Czech Republic from the perspective of historical evolution, recent legislative adjustments and the definition of the essential representatives of collective investment including their distribution. The second part presents the basic methods of quantification of historical risk and performance of the mutual funds. The final, practically oriented, section includes the results of the measurement of the historical performance of the selected funds based on the composite measures of performance and this closing chapter contains the analysis of the transaction costs of the monitored funds as well. Investment recommendations for potential investors are made based on these findings.
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Graph algorithms in text retrieval
Irikovský, Peter ; Kopecký, Michal (advisor) ; Galamboš, Leo (referee)
This thesis surveys use of graph theory and algorithms in information retrieval. It provides an introduction to graph and information retrieval theories and an overview of the overlap between these disciplines. We show application of the graph theory in clustering, document classification, finding communities etc. The most stress is, however, put on ranking algorithms as they aim to improve the most critical property of the information retrieval systems, their precision. The paper presents different graphbased ranking algorithms, provides comments to their time and memory requirements and to realistic usage of these rankings. It also contains a description and test results of our implementation of algorithms for computing the PageRank distribution designed for the Egothor search engine.
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Knowledges Brought by Research of Lateral Pressure of Granular Materials
Koudelka, Petr
The contemporary conventional theory of earth pressure and standards are based on the old idea of a single shear soil mass surface defining earth pressure stress along the whole height of the retaining structure and some others assumptions which are not correct. The paper presents both some important knowledge from the research and proofs for a more general theory of earth pressure.
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