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Elemental analysis of selected types of herbal teas
Adámková, Petra ; Hraníček, Jakub (advisor) ; Šíma, Jan (referee)
In this bachelor thesis the concentrations of magnesium, potassium, manganese, zinc, copper, chromium, cadmium and lead in selected herbal teas and their infusions were determined. Teas from two competing producers on the Czech pharmaceutical market were selected for analysis. The aim of this work was a mutual comparison of selected tea samples in terms of their elemental content. An indicative study of the effect of water temperature and leaching time on the release of elements into the solution during the preparation of the pickle was carried out. The applied method included the decomposition of samples in a microwave device in the presence of concentrated nitric acid and analysis of the composition of the prepared solutions using ICP-MS. The results showed that the element contents differ according to the type of plant and according to the producer. Furthermore, it was proven that the leaching time has a greater influence on the release of elements into the solution than the water temperature. In this work, it was also verified that the ICP-MS method was suitable for determining the concentrations of all selected metals due to low detection limits. Key words Mass spectrometry, inductively coupled plasma, herbal teas, metals, microwave decomposition
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Explaining the Czech Foreign Policy Towards China (1992-2017)
Adamková, Petra ; Garlick, Jeremy Alan (advisor) ; Havlová, Radka (referee)
The presented master´s thesis aims to explain the Czech foreign policy towards China since 1992 to the year 2017. In order to analyse the approach, the author firstly carries out a literature review and introduces three levels of foreign policy analysis, i.e. system, (sub)state and individual. Key relevant phenomena are introduced and the stage is set for the case study. The empirical part of the presented thesis begins with a summary of the foreign policy of the Czech Republic towards the People´s Republic of China. To provide a complex picture, the Chinese interests in Czechia are described as well. The last chapter represents the analysis itself. The notion of polarity and great powers in the system level, the national attributes with domestic influences, and the personalities of two presidents provide the basic aspects contributing to the final explanation.
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Regionální značky potravin a zemědělských produktů: regionální diferenciace
Adámková, Petra
The bachelor thesis analyzes the regional brand of food and agricultural products from the perspective of regional differentiation. The first part is based on the processing sci-entific literature and relevant concepts and definitions, presenting the concept of re-gional brands under the auspices of the Association of regional brands.The second part with the help of using self-created database of food and agricultural products certified by ARZ, analyzes the products from a regional perspective and describes the environ-ment of their producers. In conclusion, the research results are evaluated and the author was briefly engaged in areas that are not represented in ARZ.
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Factors influencing individuals as international relations actors
Adamková, Petra ; Peterková, Jana (advisor) ; Trávníčková, Zuzana (referee)
This bachelor thesis deals with factors influencing individual's decision-making in the international field. These factors are divided into two sections - inner and exogenous, and are described and analysed. Emphasis is put on those entities, which play a key part when describing the foreign policy of Mr Vaclav Havel, the president of the Czech Republic and a respected figure abroad. Specific factors having influence on Vaclav Havel are stated in the empiric part of the thesis. All of these are linked to president's acts on the international stage.
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