|
Effect of vibration on image quality of the electron microscope
Šafář, Pavel ; Horák, Karel (referee) ; Havránek, Zdeněk (advisor)
My thesis focuses on one the parasitic factors influencing an electron microscope during recording - i.e. the vibrations. Their impact on the quality of the shots is crucial and it is thus desirable to discover the origin of the vibrations and the way they are transmitted on the device and also to strive to eliminate this phenomen as much as possible. Measurements to estimate the source of vibration on the device as well as in its surrounding are a part of my work.
|
|
Resolution of the information needs of the sales team in the leasing company using ICT tools
Kosíková, Renáta ; Oškrdal, Václav (advisor) ; Wiedermann, Miroslav (referee)
Nowadays information is considered as an essential company source, which is crucial for attaining a competitive advantage. The competitive advantage can be achieved by the acquisition of the relevant information, which is a prerequisite for knowledge creation. Acquired knowledge gives businesses an opportunity to improve their position against competitors quickly by finding the information required for the decision making. Hence the aim of this thesis is to examine the problem of acquisition of the relevant information, where this problem relates to the practice in a leasing company. In order to find the relevant information, the leasing company must precisely define its information needs so that it can obtain the relevant information more efficiently, in particular by using current information management tools. At present, information management is strongly affected by contemporary trends, such as Big Data, mobility, Cloud Computing, social media etc. As a consequence of these trends, volume of electronically processed information increases every day. Due to information oversaturation, information users may face the difficult information search problem. Using both modern information management tools and exactly defined information needs, the company shall obtain the relevant information in less time, or more information in the same time compared to the other firms. This might allow the company to make decisions more rapidly. In addition, information management tools are likely to uncover new contexts, of which the company was not aware.
|
|
ETHICS AS A PART OF EDUCATION OF SOCIAL WORK
KŇOURKOVÁ RŮNOVÁ, Jitka
The theoretical part is based on the knowledge obtained from book, magazine and electronic resources and all elements related to ethics are described here: ethic questions and standards, conflicts, arguments, communication etc. The theoretical part further contains educational procedures at universities. The crucial element in the presented Bachelor?s Thesis are principles and standards of the Association of Educators in Social Work (hereinafter referred to as the Association). Within the purposes of the practical part there were addressed schools being members of the Association of Educators in Social Work and these schools were asked for providing a syllabus of the subject dealing with ethics taught at the relevant school. Information obtained based on the request, supported by searching the official web pages of the schools, were subject to content analysis and comparison methods. From the conclusion of the practical part of the Bachelor?s Thesis it results that always certain information that could be important or essential for students is missing in the syllabi of ethic subjects of the addressed and compared universities. Providing complex and comprehensive information by the school students obtain an overview of requirements for the subject graduation. The thesis is a complex breakthrough into the problem of teaching ethics within the training of social employees.
|
|
Excited state dynamics of carotenoids in solution and proteins
CHÁBERA, Pavel
Time resolved spectroscopy is one of the crucial methods used to study processes on molecular level in biological systems. It is useful especially for monitoring fast processes that take a place in photosynthetic apparatus of photosynthetic organisms, such as electron and energy transfer. The integral parts of photosynthetic apparatus are carotenoids, whose role in the photosynthetic apparatus is not as well explored as it is for chlorophylls. It was proved that carotenoids actively participate in energy transfer processes in photosynthetic antennas. They have a crucial role in protection against excess energy damage. They are also electron donors in both antennas and reaction centers. The fact that photo-physical properties of carotenoids are much different from properties of others organic pigments, complicates studies of their functions in photosynthesis as well as in other biological systems. This thesis employs advanced methods of femtosecond spectroscopy to obtain more information about carotenoid functions in some biological systems and in solution with special focus on carotenoids containing carbonyl group.
|
|
Electronic Communication in Organisations
Cejthamr, Václav ; Kabele, Jiří (advisor) ; Šafránková, Jana Marie (referee) ; Nový, Ivan (referee)
The work explores the theoretical knowledge of the effects of electronic communication on the fuctioning of the working team on trust, member satisfaction, self evaluation through empowerment and cohesion. To verify the obtained results the explorative study in the natural environment of the working team, intensively using electronic communications, were done. The main methodwas the analysis of theories of electronic communication and the functioning of teams under working environment conditions. For explorative study the method of observations was used, as well as unstructured interviews and questionnaires. After analysing the current theoretical knowledge and the definition of main directions of the exploration, the work focuses on the exploration study of the team in the natural working environment with higher levels of virtualization. In addition to several theories of rational choice and theories of the impact of communication technology on social relations the concept of Human Relations was used as an crucial explanatory apparatus for findings, obtained in the exploratory study. A key finding was the dominance of social relations in communication, which outweighed the rational theory of choice and technological determinism. An additional finding was how the contextual situations determines...
|
|
New diagnostic and therapeutic aspects of inflammatiory cardiomyopathy
Kuchynka, Petr ; Šimek, Stanislav (advisor) ; Krejčí, Jan (referee) ; Gregor, Pavel (referee)
Introduction: Inflammatory cardiomyopathy (DCMi) represents a non-familial form of dilated cardiomyopathy (DCM) and endomyocardial biopsy (EMB) is crucial for its diagnosis. Aims: To assess the prevalence of DCMi in patients with DCM of unclear origin, to evaluate the significance of serological tests for antibodies against infectious cardiotrophic agents and to analyze the effect of specific therapy guided by EMB results. Methods: EMB was performed in 56 subjects (mean age 52 ± 10 years) with DCM of unclear etiology and left ventricular (LV) ejection fraction (EF) < 40% with a history of heart failure less than 1 year. EMB samples were analyzed by immunohistochemistry, polymerase chain reaction (PCR) and electron microscopy. Results: Immunohistochemical examination revealed myocardial inflammation in 26 patients (46%), the PCR method detected genome of microbial agents in 32 patients (57%). Electron microscopy showed the presence of particles of microbial agents in 41 patients (73%). Serological blood tests found no IgM antibody positivity against any of the investigated microbial agents. Targeted antibiotic therapy in patients with evidence of Borrelia burgdorferi (Bb) genome in the EMB led to a reduction in LV size, improvement of LV EF and alleviate symptoms of heart failure. Conclusion: DCMi...
|
|
Catalytic and Electronic Properties of Redox-Active Metalloenzymes and Transition-Metal Complexes: Insights from the Computational Chemistry.
Srnec, Martin ; Rulíšek, Lubomír (advisor) ; Himo, Fahmi (referee) ; Papai, Imre (referee)
Charles University in Prague Faculty of Science Department of Modeling of Chemical Properties of Bio- and Nanostructures Catalytic and Electronic Properties of Redox-Active Metalloenzymes and Transition- Metal Complexes: Insights from the Computational Chemistry Dissertation Thesis Abstract RNDr. Martin Srnec Supervisor: Mgr. Lubomír Rulíšek, CSc. Institute of Organic Chemistry and Biochemistry AS CR Center for Biomolecules and Complex Molecular Systems Praha 2010 Introduction Metals and their ions play a key role in maintaining life. They frequently promote protein folding, the stabilization of protein scaffolds, enzymatic activity, energy conversion, intra- and intercellular signals etc. Several decades ago, metalloproteins were considered as a rather small group of proteins. Nowadays, one-third of enzymes are estimated to contain one or more metal ions, whose presence is crucial for their enzymatic functionality. Metalloenzymes participate most often in the catalysis of difficult chemical reactions (e.g. the hydroxylation of methane, decomposition of H2 into protons and electrons, N2 and O2 bond cleavage and many other examples), in oxidation-reduction and electron-transfer reactions, and in the catalysis of spin-forbidden reactions, where relativistic effects (i.e. spin-orbit coupling) are necessary....
|
|
Impact of internet on education
Sedláček, David ; Sigmund, Tomáš (advisor) ; Rosický, Antonín (referee)
The content of this work is to warn on issues of internet impact in education. Usage of information in this process plays a crucial role. At the beginning, work deals with the analysis of basic concepts in close relation to the Internet and information society. The concept of education is logically relevant and connected with a tendency to its measurability. Several aspects are also discussed such as digital divide or informational and computer literacy and how these aspects affect use of the Internet. At the same time space is devoted to the electronic communication or electronic education as key elements with a great degree of influence in the internet environment. The last section describes the view of both sides in the process of acquiring knowledge - students and teachers. Including a survey, matched with a summary of the work and accompanied by recommendations, which direction should the education takes effort.
|
|
Effects and benefits of information systems
Veselý, Ondřej ; Basl, Josef (advisor) ; WOlf, Rudolf (referee)
This diploma thesis deal with benefits of information systems (IS) in companies. It contains of theoretical and practical parts. The main goals of this thesis are to analyze the real information system in SUDOP PRAHA a.s. company and to draw up changeovers in this system and its driving with the main focus to raise benefits of IS. The nearby goals in theoretical part are: to identify the main potential benefits which can be reached using IS and to identify conditions and limitations to which companies have to impeach and which are crucial to maximize the benefits of IS. Theoretical part goes from available literature and electronic resources analysis. Practical part is based on consultations with SUDOP PRAHA a.s. employees and on information provided by developers of their information systems. The benefit of my diploma thesis is in the problematic parts of IS in SUDOP PRAHA a.s. identification. When the company eliminates these problems and enlarge its IS in the parts I suggest, their benefits of this IS should rise. These recommendations are definitely applicable to other specific information systems in nonmanufacturing companies, mainly design, consulting and engineering companies. This thesis could work as the base view of information systems and their driving issue. This fast view is useful for organizations, which haven't any information system yet or whose information system doesn't work great.
|
|
Media Image of Kofi Annan
Wesley, Nathaniel ; Marcelli, Miroslav (advisor) ; Bystřický, Jiří (referee)
In the period between 1997 and 2007, Kofi Annan was Secretary General of the United Nation Organization. This work concerns his media image in Czech and Ghanaian media (as an example of European and African media respectively). The theoretical basis is taken from media theory, looking at thinkers such as Michael Foucault, Althusser and the Roland Barthes and an important part of the project is based on Critical Discourse Analysis. The thesis maps the important milestones within the tenure of Kofi Annan, which were crucial to his work, and it is therefore also an analysis of media responses to different pivotal moments of his career. Much of the work is based on explaining how the media work and what is specific about the Ghanaian media as a relatively unknown subject. The projects further looks at the legacy of Kofi Annan not only as a secretary General of the United Nations Organization but also as an international leader. In order to make the analysis complete there is also a study how Kofi Annan was shown visually during his ten year mandate as head of the United Nations Organization. There is a detailed look at the differences and similarities of the image of Kofi Annan presented by the Czech and Ghanaian media. Research was focused on electronic media. Materials were taken from both Czech and Ghanaian...
|
guest ::
