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Introduction: The positive effects of vitamin D on the human body are frequently discussed and investigated by numerous studies, both foreign and domestic, and its serum levels are closely monitored in relation to diseases. Vitamin D has positive effects on the immune system, influences intestinal calcium transport, is important for proper mental and physical development and growth of children, even during pregnancy, and helps prevent lung diseases. Objective: To evaluate the relationship between blood vitamin D levels and respiratory diseases in children. Methodology: Serum vitamin D levels and their relationship to respiratory diseases were also monitored in relation to gender and season (summer and winter). Sample: Blood samples were collected from 127 respondents aged 2 months to 18 years, including both healthy and sick individuals, for vitamin D levels. Data collection and processing for healthy children were approved by their parents (Appendix 1). Blood samples were collected over a period of two years at a healthcare facility in the South Bohemian region. The results were evaluated in two borderline groups, at 50 and 75 nmol/L. Furthermore, the vitamin D content of 10 diets of these children was processed and evaluated. The resulting values of vitamin D levels also included studied diets. Results: The results did not confirm the expected relationship between vitamin D levels and respiratory tract diseases in children in either borderline group at 50 and 75 nmol/L. However, partial effects on the respiratory tract were confirmed. Discussion: The author attempts to explain why the hypothesis was not clearly confirmed.

Quartz and other siliceous materials are among the most widely used industrial raw materials. Demand for high-purity silica increased during past decades, specifically due to its growing use in the photovoltaic energy or electronic/electrical industries. Strict requirements on the purity of the feedstock, together with very complex processing technology, narrow down the choice of potential sources suitable for industrial extraction and use. This bachelor thesis provides an overview of the existing knowledge concerning the formation, properties, and processing of industrially exploitable deposits, and the market policy of high-purity quartz raw materials. This comprehensive overview is followed by a section that focuses on deposits and potential sources of high-purity quartz raw materials in the Czech Republic (Bohemian Massif). This part was elaborated on the basis of publicly available archival sources (final exploration reports or reserve calculations), available in the Czech Geological Survey - Geofond.

in English This paper looks into how climate change is being covered by newspaper media in two Global South countries and two Global North countries - India, the Philippines, Denmark and Australia. While there is some literature on who the main sources are in climate change coverage, as well as how frequently climate change is covered in different countries, there is less literature on how climate change is framed, and how this relates to who the main sources are. Analyzing articles from three newspapers in each country, this content analysis gathered data on what sources are being predominantly used in news articles, and further, how these articles are being framed. It was found that climate change has become a highly politicized issue in the media across most of these countries, and that the main voice in how climate change is becoming to be understood is politicians - except for in Denmark. At the same time, it was found that climate change is mainly being framed as an issue in need of action - except for in Australia.

This bachelor thesis is about Leasing as one of the forms of financing business activities. The aim of the thesis is to explain leasing as a financing source, to analyse its advantages and disadvantages and the use of leasing in a selected company. In the theoretical part, forms of financing, tangible fixed assets and leasing are de-scribed. The practical part presents a financial analysis of the company Pro Sand Engi-neering LLC which deals with the production of machines for stone, sand and cements processing. The data are obtained from the website or.justice.cz. Futhermore, the work focuses on financing of fixed assets in this company and their experience with leasing. Finally, leasing with loan financing and self-financing are compared on a business plan. The best form of financing is the method with the lowest value of total cost.

This thesis deals with the depiction of four important periods of the Syrian civil war in the selected Czech on-line media. Using the quantitative content analysis, it examines the news content in terms of topics and representation of conflict actors, as well as the representation of foreign media and news agencies a use of social networks. Goal of qualitative frame analysis is to examine coverage of the Syrian Arab Army siege of Zabadani and Madaya as well as the siege of Fuah and Kafraya by Syrian opposition forces. In addition to the frames used, the analysis found significant disparity in media coverage, despite a similar and interconnected fate of both besieged enclaves. Quantitative analysis revealed significant representation of western sources, predominance of the great power actors and rather negative image of the Syrian government as well as the Syrian opposition.

The purpose of this bachelor thesis is to examine the environment of a chosen organization with an emphasis on both external and internal analysis. The thesis explores whether the methods of the external and internal analyses give enough information to evaluate the condition of the organization. It also suggests the most important method for business management. The analyses used in the thesis are Porter´s Five Forces, PESTLE, BCG and financial analysis. The results of the analyses are expressed using research taken from within the organization and are concluded in SWOT analysis. The main tool are interviews with managers. This concrete data is used to evaluate the condition of the specific organization and to give advice to managers. Thus, the aim of the thesis is to suggest ways to increase an organization´s efficiency and ways to identify losses.

This bachelor thesis deals with the financial analysis of company RENOVA stavební a obchodní společnost s r.o. Theoretical part describes basic terms in financial analysis area, importance of input data and used methods. Practical part implements calculations pointing financial situation assessment of the company. In bachelor thesis are used these methods: horizontal and vertical financial analysis, ratio indexes, bankruptcy models, bonita models. The goal of this thesis is analysed financial situation in this company.

The thesis focuses on renewable sources of energy. The main objective is to demonstrate how their use affects the individual regions. The sources explored in the thesis include the power of the sun, water, wind and other. All of the resources are specified in terms of their operation, their history and their advantages and disadvantages. Furthermore, the thesis also focuses on the devices that are most frequently used for each source to generate electricity. The concluding section sets out certain regions of the Czech Republic and on the basis of their results, it proposes recommendations, which sources should be supported the most within the regional politics. The data for each region are collected through official statistics and interviews with employees working for E.ON Energy, a.s. The overall results, which are presented in tables, are obtained by basic statistical analyses.

Bachelor thesis Bias of Czech media: the image of Radovan Krejčíř and his activities in the contemporary press analyzes how chosen media informed about events during the escape of Radovan Krejčíř from the Czech Republic in 2005. The quantitative analysis aims to reveal potential journalism methods and working procedures, that could cause, at the end, bias on public. Theoretical part of these thesis focuses on defining the term bias and specifies defined terms, which this study contains. Theoretical concepts kinds of bias are introduced and monitored press is defined. Practical part of this study draws information form monitored periodicals in defined time table and emphasizes on following comparation of analyzed data. The main aim of this study is to find out, how media worked with information and confirm or refute potential bias.

The thesis "The army on the media battlefield" examines the extent to which the Ministry of Defence and the Army of the Czech Republic are media institutions. If they take media logic and if they subject to pressure of the journalists. All this in a theoretical frame of four phases of mediatisation that is defined by Jesper Strömbäck's work in 2008. The theoretical part defines terms such as mediatisation or media logic. The thesis also focuses on the explanation of corporate communication, which is related to the Ministry of Defence and the Czech Army. In the conclusion of the theoretical part both institutions are defined and the emphasis is on their communications department. The methodological part describes the research method of semi-structured interviews, which are used to collect relevant data. It also defines the research problem and research questions. The third part of the thesis is devoted to research where data collected from nine respondents from the Ministry of Defense and the General Staff of the Army are analyzed and categorized to relevant research questions. Respondents answered questions that addressed the communication objectives of the Army, formats and contents of the communication, new media and their work in relation to editorial routines. Respondents described what...

The role of the media before and during the Iraq war in 2003 in the United States still resonates topic. Journalists are often criticized for failing to fulfill their roles and violations of journalistic standards. This thesis deals with the balance of articles in two national newspapers, The New York Times and The Washington Post, in the period before the invasion of Iraq, specifically from the August 2002 until the invasion on March 19, 2003. The thesis is a quantitative content analysis of the articles from the front pages of these newspapers. The main hypothesis of the research is that, according to criticism that the media received, there should be more sources supportive of the administration of George W. Bush and almost no opposition. The thesis examines, whether journalists followed the norm of balance of sources, or whether is the criticism justified. The result is, that despite the lack of opposition on the domestic political scene, journalist found the opposition sources abroad. Reporting of these two newspapers were, in terms of used sources, balanced.

This diploma thesis is dealing with the topic of civil society organization dependency on its environment (on resources taken from the outside). The paper is focusing three areas - understanding and manifestation of this dependency on the resources of the civic society organization, on so called border situation which occurs during the meantime between projects and last but not least on the strategies which the organization proceeds, either willfully or not, on the reaction to its dependency on the resources and to its border situation. This paper is grounded in the resource dependence theory, developed by Jeffrey Pfefffer and Gerald Salancik, and in already executed researches from abroad. The research design used in this work is a single case case study. Data were acquired by the methods of semi-structured interviews and by the analysis of the documents.

Diploma thesis deals with disputes of contested territory in South China Sea region and describes the maritime trade in the region using statistical techniques. The theoretical part is focused on regional security of the region and legalistic theories. In practical part are described historical actions that took place in South China Sea and analysis of the commodities going through the South China Sea region. Analysis is based on Container port throughput, Liner shipping Connectivity index and export and import groups of goods and their impact on balance of trade.

This Master's thesis entitled "Social Media's Influence on Journalism" focuses on the effects new communication technologies, especially social media, has on journalist's. These effects are examined in regard to four major aspects of journalism - the individual, journalistic routine, work with information sources and ethical standards. The theoretical frame focuses on current trends in media, specifically social media, and the routines of journalists with a main focus on newsgathering and sorting of news. This has been strongly linked to gatekeeping theory. Qualitative research was conducted using Semi-structured in-depth interviews to answer research questions. Seven journalists, representing various facets of journalism, from a number of Czech daily newspapers were interviewed. The interviews were divided into four main parts to find out which social media platforms are used, how social media has changed routines, how social media is used as a source of information and how ethical standards may have changed. Open and axial coding was used to analyse the data obtained from the interviews. Results showed that journalists utilise social media at work on a daily basis and it has become an integral part of their routines. The main platforms used are Facebook, especially to find and connect sources,...

Lesson preparation is an important part of teachers' profession, yet there has been little research focused on this topic recently. This work studied the preparation of geography lessons in Czechia with an emphasis on the use of internet sources. Based on the findings, criteria for an ideal geographic website for teachers were suggested. The data were collected in two ways: (1) on-line survey of ran- domly selected secondary school teachers (n=72), and (2) semi-structured interviews (n=6). The work indicated that lesson preparation greatly varies from teacher to teacher. In general, teachers do not change their lesson plans significantly, and thus the beginning of teachers' career is crucial for future teaching. Participating teachers spend on average about a quarter of their working time on lesson preparation and there is no apparent correlation between the time spend on lesson preparation and the teachers' age or the length of teachers' career. Furthermore, it was found that all participating teachers use internet resources during lesson preparation, particularly for search of updated infor- mation. The most visited websites are those offering maps and encyclopaedias (predominantly Wik- ipedia). The ideal geographical website should primarily offer ideas for teaching activities, as fully- prepared lessons...