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This diploma thesis should have tested growth abilities during different temperature and oxygen regime in hybrid between brook trout (Salvelinus fontinalis) and arctic charr (Salvelinus alpinus) culture. There were survival, growth, feed conversion, weight heterogeneity of fish and somatic indexes as followed indicators. The hypothesis was discovery of differences in growth and mentioned indicators during rearing in water with different temperature and oxygen regime. This thesis consists of two done experiments. There were tested five temperature regimes (7, 10, 13, 16 and 19 °C) in the first experiment. Each of tested groups was repeated four times. The experiment took place 84 days and biometric data were measured always after 21 days period. Results showed that the highest weight growth was achieved in fish reared at 13 °C as specific growth rate achieved 4,12 ? 0,21 % × day-1. Higher temperature regimes (16, 19 °C) are not suitable for rearing of Salvelinus hybrid. Survival of tested group reared at 19 °C were only 41,4 ? 27,3 % after the end of the first experiment. At lower temperatures efficient feed conversion were not managed and specific growth rate were lower than at mentioned temperature 13 °C. There were four tested groups permanent hyperoxia (120 130 %), hyperoxia only during a light part of a day, oscillating hyperoxia/normoxia and permanent normoxia (85 95 %) in the second experiment. Each of tested groups was repeated three times. The experiment took place 63 days and biometric data were measured always after 21 days. There were no difference in survival among tested groups and after the end of the second experiment survival was 86,0 ? 1,4 %. The highest specific growth rate were achieved at the normoxia group 1,48 ? 0,05 % × day-1 and at the group where fish were reared under hyperoxia only during a light part of a day - 1,38 ? 0,10 % × day-1. The most efficient feed conversion was mentioned at the fish reared in permanent normoxia and permanent hyperoxia.

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There is still a totalitarian regime in some countries of the world. This regime does not allow its citizens to develop their individual development, violates human rights and does not respect a personal freedom. There is an obvious centralisation of power, suppressed diversity and very strong tool of power is ideology in these states. A way of thinking of a ruling establishment, but also of people who are in thrall of the totalitarian regime could be called as a totalitarian thinking. Theodor Adorno was concerned by the critique of such thinking and he also wanted to name the pathological attributes of such thinking. Adorno's main idea is the concept of identity and non-identity: how we name the world. We need to name the the reality around us, because as humans this ability to categorise influences our view of reality. It is how we judge society and our behaviour within it. The opinions of Theodor Adorno are accompanied by Václav Havel's reflections. Havel lived the significant part of his life in totalitarian Czechoslovakia and throughout his works he was concerned with the phenomenon of a "post-totalitarian system ". The texts of both of these thinkers form the basis for the personal attempt of the author to discuss the phenomena which lead to totalitarianism.

The thesis focuses on the behaviour of the largest world superpowers, the United States of America, the Russian Federation, and the People's Republic of China, in terms of internet freedom. The aim is to examine in what manner and to what extent these countries limit or protect their citizens' right to freedom of expression on the internet. The resulting data should reveal or disprove significant discrepancies between the character of the political regimes which the selected countries represent, and their real practices towards the freedom of speech on the internet. The subject of the analysis is to compare these countries' data which were presented in the Freedom on the Net 2011-2015, a series of reports by the independent non- profit organisation of Freedom House. The data are compared through comprehensive graphs and charts, which help to illustrate and map the development of the individual countries' behaviour in time. The thesis is complemented by a chapter focusing on the historical development of internet, illustrating who participated at its birth and who has a major influence on its current form.

The Master's thesis analyses the macroeconomic aspects of the exchange rate policy of the administration of president Hugo Chávez Frías in Venezuela in 2003 - 2010. The author focuses first on the comparison of different exchange rate regimes and their compatibility with the commodity depended economies. A special attention is paid to the concept of Peg to Export Price regime (PEP), also called oil standard, of Jeffrey Frankel and its suitability for contemporary Venezuela. The goal of the thesis is to stress that even though the election of a correct exchange rate regime is of great importance for an exporting economy, the success can be achieved only when combining it with an appropriate monetary and fiscal policy. Without an adequate economic policy the regime alone can not provide stability and moderate high inflation.

The dissertation deals with the phenomenon of hybrid regimes, specifically applied to the case of Kyrgyzstan. The main emphasis is placed on the 2005 Tulip Revolution and the regime of Kurmanbek Bakiyev installed by this event. Applying the theoretical concepts of hybrid regimes and regime change, the dissertation verifies the hypothesis that Kyrgyzstan's post-2005 political system retained its hybrid character and kept being neither a democracy nor an authoritarian regime. In this light, the Tulip Revolution brought about only a change of the leadership (as usual in coups d'état), not regime change (as might have been ushered by a democratic revolution).

The main goal of this thesis is to value the effect of the exchange rate policy of the Czech National Bank on the internal economy. In this case, exchange rate policy means the introduction of foreign exchange intervention, which was joined by the Czech National Bank in November 2013. In the theoretical part is the most attention paid to the foreign exchange market, foreign-exchange interventions, which are among the indirect monetary policy instruments. There are also described the functions and roles of the central bank. In the practical part of the thesis is an analysis of macroeconomic developments in the Czech Republic and other selected European countries. There is the comparation which allows to evaulate the realized exchange rate policy of the Czech National Bank. This part of the thesis are also discussed possibilities deadline for the completion of the exchange rate commitment and its form. The last chapter includes opinions of respected economists and organizations on exchange interventions.