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Morphology of thermal-contraction-crack features and their pattern
Dufek, Jaroslav ; Křížek, Marek (advisor) ; Roman, Matěj (referee)
This bachelor thesis deals with phenomenon of periglacial landscape of continuos permafrost such as thermal-conctraction-crack polygons and forms of their secondary infill - ice, sand, soil and composite-wedge pseudomorphs. Upper Pleistocene thermal-conctraction-crack polygons are located in mid-latitudes all across the Europe. Most common geometry shapes of these polygons are orthogonal and hexagonal patterns. Pseudomorphs are commonly situated in areas of lowlands, river terraces, floodplains on slopes with angle up to 4ř. Their distribution is closely associated with the maximum extent of past permafrost during the last glacial episode (~17-25 ka BP). This pleistocene phase is known as last periglacial maximum (LPM; Vandenberghe et al. 2014). Creation of ice-wedges is primarily bound to present continuous permafrost, which the southernmost Pleistocene limit in Europe has been established to 47ř N (Black 1976, Vandenberghe et al. 2014). However, some research suggest, that with favorable local conditions, ice-wedges can develop also in arid climate and discontinuous permafrost zone and they can occur together with sand-wedges (Kasse 1998). It was also found that cold arid climate is not the only factor for sand wedge development, but great importance has also local variability of microrelief such...
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The script writing´s methods about new religious movement charismatic leader
Miška, Jaroslav ; DUFEK, Jiří (advisor) ; VAJCHR, Marek (referee)
This bachelor thesis deals with the principles of finding a story from the environment of a new religious movement. He carefully analyzes the character of charismatic leader and the characters of his successors. The final result of this thesis, if possible, is going to raise awareness of new religious movements as part of the film's story. In addition, the work deals with the theme of apostate, the nature of the ritual, or the fight against an external enemy. Furthermore, he interprets the way of working with the community space and, last but not least, the process of denomination or, on the contrary, the demonization of the religious movement in the film work.
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The motive of selfishness and the possibilities of its displaying in the film August: Osage County
Nováková, Tereza ; DUFEK, Jiří (advisor) ; KAJÁNKOVÁ, Lucia (referee)
The bachelor's thesis deals with the searching of a motive of selfishness in an American film August: Osage County and the tools of displaying this motive in a film work. This thesis is not a film analyse although it could seems like it is. The thesis focuses on one concrete motive which is a main motive in the film. In this kind of focus the thesis analyses every single character, their motivations and the psychological profile of chosen ones
In the first part, I introduce the chosen film, the author of the script and – shortly – the film plot as well. In the second part, I try to analyse the structure of the story based on the work by Linda Aronson, the part of food as a stage proprerty, character's sexual behaviour and their psychological disorders. In the third part, I compare the film adaptation to the original play, which was also written by Tracy Letts, the author of the film sript.
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Horizons of Saint Clara
Součková, Štěpánka ; DUFEK, Jiří (advisor) ; MRAVCOVÁ, Marie (referee)
This bachelor thesis is a comparative study of the film The Ideas of Saint Clara (1980, West Germany, directed by Vojtěch Jasný, written by Pavel Kohout and Jelena Mašínová), the novel The Ideas of Saint Clara (1980, West Germany, written by Pavel Kohout) and the film adaptation of the novel Saint Clara (1996, Israel, directed by Ari Folman and Ori Sivan). The study is focused on changes of content and style in three different cases with respect to the historical context and authors' personalities. The aim of this bachelor thesis is to point out neglected titles of major Czech authors, which were created in exile during the so called normalization period and which inspired Israeli filmmakers to produce the original, internationally known and award-winning adaptation.
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Multi-period Factor Model of a Loan Portfolio
Šmíd, Martin ; Dufek, J.
We construct a general dynamic model of losses of a large loan portfolio, secured by collaterals. In the model, the wealth of a debtor and the price of the corresponding collateral depend each on two factors: a common one, having a general distribution, and an individual one, following an AR(1) process. The default of a loan happens if the wealth stops to be su cient for repaying the loan. We show that the mapping transforming the common factors into the probability of default (PD) and the loss given default (LGD) is one-to-one twice continuously differentiable. As the transformation is not analytically tractable, we propose a numerical technique for its computation and demonstrate its accuracy by a numerical study.\nWe show that the results given by our multi-period model may differ signi cantly from\nthose resulting from single-period models, and demonstrate that our model naturally replicates\nthe empirically observed decrease of PDs within a portfolio in time. In addition, we give a formula for the overall loss of the portfolio and, as an example of its application, we formulate a simple optimal scoring decision problem and discuss its solution.
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Simulation of Multi-UAV Cooperative Surveillance Using Pogamut and USARSim
Dufek, Jan ; Plch, Tomáš (advisor) ; Čermák, Miroslav (referee)
The main objective of this thesis is to introduce a simulation platform, which has been developed utilizing Pogamut and USARSim, for cooperative aerial surveillance using multiple unmanned aerial vehicles (UAVs). The graphical user interface (GUI) of the simulator contains the automatically created bird's eye view of a 3D virtual environment. This is used to enter locations and parameters of objects (UAVs, charging stations and areas) and also to visualize the process of a simulation. The thesis proposes a system for the analysis of the quality of surveillance, whose results are presented in the GUI in the form of a time graph and a heat map. Part of the proposed platform is a UAV objective-based control system including charging stations scheduling. A total of seven algorithms for cooperative surveillance has been implemented, tested in three different scenarios and analyzed for coverage quality. Powered by TCPDF (www.tcpdf.org)
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The Mesolitic and Early Eneolithic settlement of the Prague plateau
Dufek, Josef ; Popelka, Miroslav (advisor) ; Dobeš, Miroslav (referee)
Author: Josef Dufek, University Faculty & Department: Charles University, Faculty of Arts, Institute for Prehistory and Early History, Title: Neolithic and early Eneolithic activity in elevated dwellings and hill forts in Central Bohemia, Supervisor: doc. PhDr. Miroslav Popelka, CSc., Number of characters: , Number of appendices: , Number of cited references: . The goal of this Master's paper is to compile previous findings on mesolithic, neolithic and early chalcolithic living areas and archeological evidence on fields, valleys and heights of the Prague plateau. An analysis of archeological material published to date on detected areas and an evaluation of their mutual calculated relationships within the frame of the region and microregions and within the frame of peace and war usage of the landscape are presented. Keywords: neolithic - early eneolithic - fields position - valleys position - heights position - settlement area - settlement makroarea - settlement mikroregion - settlement region - Prague plateau
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Advanced Techniques of Risk Aggregation
Dufek, Jaroslav ; Justová, Iva (advisor) ; Pešta, Michal (referee)
In last few years Value-at-Risk (Var) is a very popular and frequently used risk measure. Risk measure VaR is used in most of the financial institutions. VaR is popular thanks to its simple interpretation and simple valuation. Valuation of VaR is a problem if we assume a few dependent risks. So VaR is estimated in a practice. In presented thesis we study theory of stochastic bounding. Using this theory we obtain bounds for VaR of sum a few dependent risks. In next part of presented thesis we show how we can generalize obtained bounds by theory of copulae. Then we show numerical algorithm, which we can use to evaluate bounds, when exact analytical evaluate isn't possible. In a final part of presented thesis we show our results on practical examples.
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