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Vliv selenu na růst heterotrofní formy řasy Chlorella
Novák, Martin
This diploma thesis (Heterotrophic incorporation of selenium in Chlorella sp.) focuses on characterisation of the genus Chlorella and large-scale use of algae for biofuel and starch production. Besides that, the thesis contains an up-to-date summary of forms of autotrophic algae cultivation ranging from large-volume tanks covering the area of dozens of hectares down to laboratory cultivation in photobioreactors and heterotrophic cultivation of algae in fermenters. Experimental part of the thesis focuses on cultivation and observation of the heterotrophic growth of algae Chlorella vulgaris in relation to the concentration of added selenium which was performed on glucose substrate with varying concentrations and forms of selenium. Selenium was applied in a form of sodium selenite Na2SeO3 and sodium selenate Na2SeO4. Numerous experimental repetitions suggest a significantly important effect of the form of the added selenium on growth rate and vitality of Chlorella sp. While the algae did not thrive on sodium selenite medium, they prospered on sodium selenate and exhibited faster growth compared to that on the media without additional selenium.
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Incorporation of Luxembourg among the Lands of the Bohemian Crown
Stehlík, Martin ; Starý, Marek (advisor) ; Kindl, Vladimír (referee)
The object of this diploma thesis is the incorporation of Luxembourg among the Lands of the Bohemian Crown. This theme was chosen primarily for the reason that it have not been compiled and analyzed by historiography so far. Available literature usually takes the incorporation of Luxembourg in the Bohemian Crown automatically as a fact without further reasoning. As a result of this approach there is considerable amount of inaccuracies and mistakes in literature. Primary inaccuracy is in a date or in a time period determining the incorporation of Luxembourg in the Bohemian Crown, when literature often indicate the reign of King Charles IV or even the reign of King John of Luxembourg. The purpose of this diploma thesis is not only analyzing the process of incorporation, but also disproves continuing inaccuracies. For this reason the diploma thesis draws and analyzes essential facts primarily from original sources and confront them with available literature. First chapter briefly introduces the institution of the Bohemian Crown for her distinguish from the Kingdom of Bohemia. Further it analyzes the terms "crown" and "incorporation". At last it describes a beginning of the Bohemian Crown and analyzes fundamental documents of this institution. Following second chapter describes the personal union...
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