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Remediation of former In-Situ uranium mining region.
Kříž, Jakub ; Kalous, Jaroslav (referee) ; Jícha, Jaroslav (advisor)
Remediation process of region, formally exploited for chemical leaching of uranium, is based on pumping water contaminated mostly by residuals of sulfuric acid from the relevant geological horizons. The contaminated water is then treated in a chemical plant. In the treatment process evaporators play the key role. Presently operating evaporators – three units – are of falling film type. Heating service is provided by compressed vapor that is generated by evaporators. For driving the compressors and associated circulating pumps of each unit electric power of 3,4 MW is required. In the evaporators treated solution is distributed into individual tubes by nozzles of cyclone type that are mounted at the top end of tubes. In the evaporators feed solution contains calcium sulfide of low concentration. Once the calcium sulfide concentration in the evaporating process reaches the state of saturation, even locally, fouling is initiated. Thus the solids start to grow on the inner surface of the tube wall and the nozzle’s openings become restricted. The evaporator performance – evaporating rate – gradually declines and when it reaches the bottom limit the evaporator has to be shut down. This is followed by carrying out the cleaning procedure. At the time when the evaporators started operating (1996) the period between shut downs lasted around a half a year. However, gradually, this period has become substantially shorter – presently it may even last one week only. The thesis proposes two ways of approaching the present hardly acceptable state. First, replacement of distributing nozzles by a set of properly perforated sieve trays secures the uniform distribution of solution into each individual tube. Second, evaporators’ duty will be taken over by newly build multi-flash concentrator that will substitute the presently operating evaporators. Configuration of this new equipment is derived from widely used multi-flash distillation of sea water. Heat required by the concentrator’s end heaters is drawn from a gas turbine exhaust gas. Steam provided by Heat Recovery Steam Generator is supplied to the condensing heat exchangers installed on the evaporator’s feed stream. Generator coupled to the gas turbine, fueled by natural gas, provides the electric power of 30 MW for export.
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The Role of Waybill CMR in Transportation Services
Vacek, Tomáš ; Novák, Radek (advisor) ; Šašek, Jaroslav (referee)
The first part of this thesis is devoted to the General Convention of CMR, CMR consignment note, obligatory data which are necessary to write in and to the parties acting on the transport market. The second part will focus on the carrier's liability as same as liability of other parties, insurance carrier's liability for loss, damage or destruction of the consignment, lapse, complaint and insurance. This issue will be demonstrated and will discuss with the court decisions. The next section will be described and analyzed electronic CMR. This section tries to evaluate the positives and negatives of its use in practice and its future. In particular, this part will be engaged in research which has implemented among members by the International Road Transport Union.
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Role of NATO in the postconflict reconstruction of Iraq
Mizerová, Katarína ; Sršeň, Radim (advisor) ; Dubský, Zbyněk (referee)
This thesis examines postconflict reconstruction of Iraq, in particular, the contribution of the North Atlantic Treaty Organization to this activity. The aim of the work is to analyze and evaluate the involvement of NATO, to find out how exactly this organization participated on nation-building, and whether the mission was effective or not. The first part is the theoretical basis of the conflict resolution, the second part focuses on the basic characteristics of NATO. The third part deals specifically with the issue of Iraq. The final part focuses on the postconflict reconstruction of Iraq after the OIF and the contribution of NATO.
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THE ROLE OF NONPROFIT ORGANIZATIONS IN SUPPLYING SOCIAL SERVICES TO SENIORS
Jirásková, Anna ; Průša, Ladislav (advisor) ; Pauerová, Hana (referee)
The thesis "The Role of Nonprofit Organizations in Supplying Social Services to Seniors in the Czech Republic" focuses on the role of nonprofit organizations within the system of social services for seniors in the Czech Republic, with the focus on organizations operating in Prague. To answer the main questions of the thesis, it employs the qualitative research methods. The goal of the thesis is to examine the various forms of cooperation within nonprofit organizations and state, as well as local authorities and its organizations. It also aims to find out whether there are any specific roles which nonprofit organizations represent as the suppliers of social services for seniors in the Czech Republic and if so, which ones.
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Estrogen receptor beta (ERβ) in testicular cells and sperm
Dostálová, Pavla ; Žatecká, Eva ; Děd, Lukáš ; Dorosh, Andriy ; Postlerová, Pavla ; Jonáková, Věra ; Dvořáková-Hortová, Kateřina ; Pěknicová, Jana
Estrogen is a steroid hormone that plays an important role during sperm development in the male and female reproductive tract. Estrogen signalling is a complex process that depends on cell milieu and presence of receptors. Thanks to the steroid nature of estrogens, they can pass through the plasmatic membrane and bind to the intracellular estrogen receptors (ERs). Within the cell, there are several pools of ERs. One of them is localized to the cell nucleus and their activation leads to direct or indirect binding to DNA and ultimately to alternation in gene expression (genomic pathway). Other pools of ERs are associated with plasma membrane or are located in cytosol. Activation of membrane associated ERs leads to rapid non-genomic responses. Nowadays, two classical estrogen receptors are known – ERα and ERβ. Since ERβ is a predominant variant in testes, we focused our study on expression of ERβ variants in murine testes and sperm. We detected two variants of ERβ at mRNA level in both, testes and sperm. These variants differ in 54 nucleotids within the ligand binding domain and this variability results in different affinity to estrogen. We analyzed individual testicular cell types (spermatogonia, spermatocytes, spermatids, Sertoli cells) by RT-qPCR. Our results suggest that both ERβ variants are coexpressed in the same cell type and may therefore interact together. This may have consequences in mediating of estrogen signalling. Moreover, ERβ is expressed more in the later stages of spermatogenesis suggesting the role of ERβ in these stages or alternatively in spermatozoa alone. At the protein level, we detected ERβ in nuclear, membrane and cytosolic fraction prepared from testicular tissue suggesting the involvement of both, genomic and non-genomic, pathways of estrogen signaling in testes. In sperm, anti-ERβ antibodies localized ERβ in acrosome region and tail which is in accordance with the known role of estrogen on capacitation, acrosome reaction and motility.
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The role of a nurse in a prevention and a treatment of intestinal parasites of children
JANDOVÁ, Anna
The best-known intestinal parasites are Pinworms, Roundworms, Tapeworms and the disease called Toxocarosis. The oftenest parasite is, according to sources, the Pinworm. Intestinal parasites affect mostly young children of pre-school age, sometimes even older. The first goal of the thesis was to investigate parents' awareness of the prevention of parasitic diseases in children. There is a hypothesis set to this goal: Parents of children who suffered from parasitic disease are more informed than parents of children who have not had this disease. The second goal was to map the specifics of nursing care for children with parasitic diseases at GPCHA practice. A research question was chosen for this aim: What are the specifics of nursing care at GPCHA in parasitic diseases? In methodology, the empirical part was chosen and it was a qualitative - quantitative research survey. For the quantitative part, the interrogation method and technique of non-standardized questionnaire was used. The research sample of quantitative survey consisted of 223 respondents, it means parents whose child is aged from 0 to 6 years. The questionnaires were distributed on social networking and others in a nursery school in Týn nad Vltavou. At the very beginning, respondents were acquainted with the topic of the thesis. The results of a quantitative survey were processed with the help of a data matrix and were further processed within twenty-arranged bar charts. To verify the hypothesis, we used the Chi- Quadrat test, which in this case is not satisfactory, therefore, there had to be chosen to merge the responses. An interrogation method, technique-depth interview was used in the qualitative part. The research group consisted of five nurses; three nurses working at GPCHA in Týn nad Vltavou and two working at GPCHA in České Budějovice. While processing the interviews, there open coding was used and an analysis of interviews was conducted by using the method of Pencil and Paper Interview. The results of this bachelor thesis will be published in the journal Paediatrics practice.
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The role and importance of W. Wilson in international relations
Janatková, Karolína ; Veselý, Zdeněk (advisor) ; Šauer, Jaroslav (referee)
The topic of this bachelor thesis is The role and importance of W. Wilson in international relations. The aim of this thesis is to analyse the role and importance of W. Wilson in international relations. The first chapter of this thesis focuses on the tendencies which had an impact on W. Wilson politics. These tendencies are idealism, pacifism and isolationism. The second chapter deals with the actors of foreign policy in the United States. The third chapter analyses the personal and political assumptions of W. Wilson. The last part focuses on foreign policy. This section deals with the situation before World War I, during World War I and the US response to the war Furthermore, this section deals with the expression of isolationism in the USA, U.S. entry into war and analysis of Wilson's Fourteen points. Last subsections are dedicated to the Paris Peace Conference, as well as formation of the League of Nations, and why the peace treaties with Germany and Austria were not ratified by the Senate.
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Institutional support for export in the Czech Republic
Lomozová, Kateřina ; Kalínská, Emílie (advisor) ; Lukáš, Zdeněk (referee)
The aim of my bachelor thesis is to provide insight into the three main state institutions supporting export of the Czech Republic, which The Czech Trade Promotion Agency/CzechTrade, Czech Export Bank and the Export Guarantee and Insurance Corporation are. The thesis is divided into four chapters. The opening first chapter deals with the Ministry of Industry and Trade, which performs a leadership role in the national pro-export policy. The second chapter is concerned with CzechTrade and its services for Czech exporters. The third chapter is focused on the Czech Export Bank, which is a specialized banking institution for the state export promotion. The fourth chapter refers to the Export Guarantee and Insurance Company, which is a credit insurance company in state ownership.
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