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Influence of epigalokatechin gallate on weight reduction - a systematic review
Janda, Marek ; Vilikus, Zdeněk (advisor) ; Majorová, Simona (referee)
Introduction: This thesis investigates the effect of isolated epigallocatechin-3-gallate on weight reduction in the adult population. An overview of Czech and foreign literature was provided on topics of obesity, the possibility of using green tea in its treatment and the positive effects of green tea on human health, followed by a systematic review and meta-analysis. Methodology: Using a three-phase systematic search strategy, published studies were searched in the Scopus database using predefined keywords. The aim of the search was to find randomized placebo-controlled studies lasting at least 8 weeks, which examined the effect of isolated EGCG in the absence of other active substances on the change of body parameters. The extracted data from the primary studies were then evaluated using meta-analysis and forest plot. As a result, a standardized mean difference with a 95 % confidence interval was calculated using a random effect model. Results: Six1 studies met the inclusion criteria, one2 of which was excluded due to insufficient evaluation in the critical appraisal of methodological quality. The remaining 5 studies provided a total sample of 325 participants who were diagnosed with a change in BMI induced by EGCG consumption. The result was a standardized average difference of -0.01, 95 % CI:...
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Psychological aspects of membership in online communities
Janda, Marek ; Štětovská, Iva (advisor) ; Slaměník, Ivan (referee)
This thesis focuses on online communities - both their historic and current form. Various forms of communications are described, main focus is then given to identity online and self-presentation - various forms it can take, which expressive devices are used, how trustworthy is it and how is it perceived by other others. Influence of anonymity is mentioned. Empirical part of this work explores online friendship relations, cornerstone of the current wave of social networking services. It asks several questions about ways in which they affect communication between users. Relation between several factors (reciprocity, direction of initiation of said relation) and both quantity and frequency of communication between those users before and after that friendship is established.
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The functionality of the Police of the Czech Republic as part of the integrated rescue system in the performance of duties related to emergency and crisis planning
JANDA, Marek
The topic of the thesis was mainly chosen, because in recent years many areas of the Czech Republic were repeatedly affected by floods of varying intensity and the police were forced to coordinate rescue and relief work with other units of the integrated rescue system (IRS). In practice performance-related police tasks were influenced by the quality of preparations (especially planning documentation) and decisions of the persons, who are entrusted with the rights and duties of coordinating the intervening units activities. At the same time no document, that deals with the issue, has been processed so far. The thesis is divided into theoretical and practical parts. The theoretical part is divided into three subsections. The first one aims to familiarize the reader with basic tasks, history, organizational breakdown and legislation governing the activities of the police. The second one examines ispecially the role of the integrated rescue system, its components, process and the role of emergency planning and related legislation. The last subchapter is devoted to crisis management, its bodies, related legislation and crisis planning. The practical part consists of a list of basic police tasks, which was created by analyzing documents prepared in the emergency and crisis planning for the capital city of Prague district. The police competences determined by the applicable effective legislation were subsequently applied to tasks of the list. The result of the above process was the finfing, which specific rules regulate the various police tasks, what specific permissions are officers abble to use to accomplish the task and where are the limits of their options. The aim of this thesis is to create a comprehensive document, that would contain the legal powers of the police and was especially useful in the practice of entities involved in the processing of emergency and crisis plans (including practical examples of the application of individual rights). In this context, there were formulated the following research questions: Suffers legislation of competencies of the Police of the Czech Republic from fragmentation (are the rights and obligations scattered in a number of legal norms)? Are police powers sufficient to perform all the tasks, which are imposed to this unit of the IRS by emergency and crisis plans processed for the capital city of Prague? The results of the thesis have shown that the legislation of the police activities is based on the amount of generally binding legal regulations, which are supplemented by internal regulations of the Ministry of Interior and the police themselves. Although the internal regulations don't have general applicability, they affect the performance of police tasks in practice as well. The fragmentation of legislation may cause an incorrect assessment of the police competencies by the bodies that are involved in emergency and crisis planning. By the coordination of the integrated rescue system activities, this documentation becomes one of the sources for decisions of incident commander or crisis management authority, resp. person standing at the head (especially the mayor or governor). In most cases these persons will not be experts in all relevant spheres and they will logically follow the documentation of the integrated rescue system, or documentation of crisis management. The quality of this documentation (or, conversely, lack thereof) will have practical impact on the success of the management of emergency events or crisis situations. Analysis of current documentation processed in the emergency and crisis planning for the capital city of Prague has shown, that most of the tasks assigned to the police corresponds to their competencies. There were also recorded some tasks that do not belong to the police competences. It involves the sorting of injured people by the START method and their transport to medical facilities by police vehicles.
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Creative Use of Digital Intermediate During the Production of Light Atmosphere
Janda, Marek ; Weiser, Antonín (advisor) ; Jícha, Marek (referee)
The goal of the thesis is to sketch out the creative use of the digital intermediate in the cinematographer. Recent technologies among them also belongs digital intermediate bring new work opportunities and possibility to change the light atmospheres in the digital postproduction. At the beginning there are mentioned the atmospheres in the painting, in the photography and in the film. Further are described the types of inputs for processing the image, sorts of film transfers, scanners and outputs. After comes the prostroduction process (with the picture examples) which is focused on postproduction equipments, digital composition, rigs, color grading and image editing. There is given the description of the technology of film recording and the issues connected with digital cinema and the archiving.
In the conclusion of this work, there are reminded the classical film technologies, perspectives of digital intermediate use in the creative work of a cinematographer and the future and film development trends are sketch out.
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