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Comparison of some spectral and temporal characteristics of German fricatives [x] and [ç] and Czech fricative [x] and their reflection in perception
Sedláčková, Petra ; Skarnitzl, Radek (referee) ; Machač, Pavel (advisor)
The aim of this diploma thesis is to analyze some of the acoustic characteristics of German fricatives [x] and [ ] and Czech fricative [x]. These sounds will be described and compared partly on the basis of spectral qualities of their noise, expressed by the so-called spectral moments (see chap. 3), and partly on the basis of their temporal characteristics. We assume to find a co-articulatory influence of the preceding vowel on the spectral characteristics of a fricative. We further assume that potential differences in values of the spectral moments, which can be, to a certain extent, considered an acoustic correlation of the place of articulation, can demonstrate a slightly different place of articulation of Czech and German velar fricatives. Using a perception test, we will attempt to explore a possible relation of German "Ich-laut" in the speech of German students of Czech to spectral mean values. The spectral moment measurements along with the perception test results may be found useful in teaching German as a second language for improving one's pronunciation. In practise, it can lead to an improvement in accepting a foreign speaker as an efficient user of the language.
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Statistical aspects of nuclear collective dynamics
Macek, Michal ; Cejnar, Pavel (advisor) ; Kvasil, Jan (referee) ; Mareš, Jiří (referee)
The current PhD thesis presents a collection of selected articles related to the theoretical and numerical study of low-energy collective dynamics of atomic nuclei. The articles were published or recently submitted to international physics journals and were authored or co-authored by the author of the thesis. The eects in collective dynamics have been studied within the framework of two common models-the interacting boson model (IBM) and to a lesser extent the geometric collective model (GCM). The "statistical aspects" in the title relate predominantly to the interplay of ordered and chaotic behavior observed in properties of quantum eigenstates as well as in the classical limits of the models. The main attention was devoted to correlations between the measures of regularity/chaos and the presence of exact and approximate dynamical symmetries. An important subject of the studies were also the relationships between the properties of the classical and quantum solutions of the models both in the integrable regime as well as in the mixed regime containing elements of regularity and chaos simultaneously.
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Money demand changes after the financial crisis in the V4 countries
Němcová, Radka
This thesis examines money demand changes after the financial crisis in the Czech Republic, Hungary, Poland and Slovak Republic. For this purpose I used monthly data of industrial production index and monetary aggregate M1. These data were adjusted for inflation and transformed by Hodrick Prescott filter in order to perform moving correlation. Obtained results were further used to determine motives for holding money according to Keynesian liquidity preference theory or they were explained by Post Keynesian theory. Next I decided whether there is a possibility to identify particular phases of business cycle in the context of money demand. For the purpose of effective running of industries I determined styles of management suitable for recovery and recession phase of business cycle.
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Analysis of the applicability of each method valuation of shares on the stock exchange
VACKOVÁ, Lenka
The aim of the thesis was assess the usefulness of different methods of technical and fundamental analysis in the trading of securities on the stock exchange. Choose the appropriate investment strategy for a particular industry.First has been performed a calculation of the theory efficient markets. For this purpose has been used two tests, correlation tests and runs test. The theory of market efficiency was demonstrated. But still has been performed the calculation of active strategies.Then was made the technical analysis. We used moving averages and oscillators, RSI, ROC and momentum. Based on these tests, we can´t select an appropriate investment strategy.Final test was carry out with using fundamental analysis. Fundamental analysis consist from testing addiction of revenue at coefficient alfa. Sector services shown 0. And at other sectors amount to possitive values. In last of all I advised pasive strategy.
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Tax havens and causes of their use
Šodková, Karolína ; Finardi, Savina (advisor) ; Bušovský, Ladislav (referee)
This bachelor thesis concerns the tax havens and causes of using them. The object of the analysis is Czech legal persons in years 2009-2015. The correlation analysis has shown that neither Czech nor foreign corporate income tax rate belongs between the main reasons for using a tax haven. The causes shall be low rates of withholding tax levied on dividends and interest rates. In addition, taxable entities take advantage of tax havens so as to hide their delicate information, which has been proven by the correlation between their number and the rate of secrecy of the tax haven.
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Jak velikost habitatu ovlivňuje společenstvo koprofilního hmyzu?
ZÍTEK, Tomáš
The effect of dung pat size on structure of dung inhabiting insect community was studied in Central Europe. Specifically all insect inhabiting the dung pat was targeted including both beetle and fly families. Abundance and species richness were positively correlated with increasing habitat volume. Density was negatively correlated with habitat size which represents low density refugee effect. Temporally co-occurring species which utilize the resource in similar way were separated by preferences for different habitat volumes.
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