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Hydrogel Scaffolds for Tissue Engineering
Chocholatá, Petra ; Babuška, Václav (advisor) ; Kovařík, Tomáš (referee) ; Pešta, Martin (referee)
Bone tissue engineering attempts to mimic the natural behavior of hard connective tissues. Currently, there is an active research and development of new functional materials in this field. The main direction in the treatment of bone tissue defects is the use of biodegradable composite materials based on biopolymers enriched with an inorganic component, possibly in combination with a cellular component. In general, hydrogels play an important role in tissue engineering due to their properties, as they can respond relatively well to changes in environmental conditions and are used as a suitable medium for cells to grow and proliferate. Structure of hydrogels also allows nutrients and waste products to diffuse, and the last but not least, thanks to this they can also serve as drug carries. A major advantage of hydrogels is that they can be injected with subsequent in situ gelation. In this work, physically cross-linked hydrogels based on polyvinyl alcohol (PVA) and hyaluronic acid (HA) in different volume ratios enriched with hydroxyapatite (HAp), an inorganic component inherent to bone tissue, were compared. Incorporation of HAp into the organic matrix was performed in two different ways, by in situ synthesis directly in the PVA/HA matrix and by physical mixing of pre-prepared HAp. The composition of...
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Relations between the Taliban and al-Qaeda between 1996 and 2001
Kovařík, Tomáš ; Koláček, Jakub (advisor) ; Kříhová, Zuzana (referee)
The Taliban and al-Qaeda are groups that profess radical forms of Islam and are often mentioned in connection with terrorism (the latter is one of the most well-known terrorist organizations). In the period 1996-2001, both groups were deployed to Afghanistan. The Taliban ruled Afghanistan during those years, and al Qaeda had the status of a kind of "guest". As a result of the 9/11 attacks of al- Qaeda, the United States launched Operation Enduring Freedom. As part of this operation, the Taliban movement was removed from the government and al-Qaeda leader Osama Bin Laden was forced to flee Afghanistan and hide until his death in 2011. The aim of my work will be to describe the development and functioning of relations between the two organizations in the period preceding these events. Why did Osama bin Laden move to Afghanistan? Why did the Taliban allow it? What were the relations between the two organizations? How was the cooperation between them? In addition to sharing a common territory, did this cooperation have other, ie economic, military and political aspects? Was the relationship between them a perfect harmony of political and religious views, or was it rather a pragmatic relationship that was not ideal but benefited both actors? The analysis of these relationships will be based on available...
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Apartment building
Kovařík, Tomáš ; Pobucká, Slávka (referee) ; Sobotka, Jindřich (advisor)
The subject of this bachelor's thesis is design of apartment building in Moravská Chrastová. The land intendet for construction is located on slope in the eastern part of village. The building is designet as a free-standing, with one basement floor and four above-ground floors, while last above-floor is designet as a recessive. The building has 11 housing units, situated in above-ground floors. The basement of building is used as technical and storage premises - there are a technical room, cellars, warehouse, bicycle room, pram room, drying room, cleaning room and common room. All housing units hava access to balcony or terrace. The building is connected by a three-arm staircase adn a barrier-free elevator. The apartment building is covered by flat roof devidet into two parts: a walkable, whitch is used as a terrace for apartments in 4th floor and non-walkable part. The vertical construction systém is made of brick masonry and in the basement floor, whitch is adjectid to the ground is made of reinforced concrete wall. The horizontal construction system consists of filigree panels, whitch are solidified.
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Identity, Capitalism and Aesthetics in Invisible Man
Kovařík, Tomáš ; Delbos, Stephan (advisor) ; Roraback, Erik Sherman (referee)
While conventional readings of Invisible Man primarily focus on its status as a race-critical novel, this BA thesis will discuss and develop the notion that the novel is in fact an experimental Bildungsroman whose narrator is a universal figure and whose development across the narrative is analogical to that of any person building their identity in today's late capitalist society. By analyzing key moments in the novel with the help of late-20th -century and contemporary critical, cultural and political theories, the text will arrive at an original reading that synthesizes those approaches, and which can be used to better understand even contemporary life. The first chapter will establish what precisely makes the text an experimental coming-of-age novel by introducing the genre's conventions that started in German Romanticism with Goethe, and will then trace these features and their distinctive emergences in Invisible Man. The second chapter will then consist of an analysis of the social system as it is presented in the novel, exploring the oppressive capitalist power structure that both requires and prevents the narrator's assimilation, and highlighting how specific characters in the novel cling to their power with no regard for the experience of others. This will be supported by theories and...
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Machine learning-based approaches to forecasting international trade
Kovařík, Tomáš ; Semerák, Vilém (advisor) ; Macháček, Vít (referee)
In this thesis I focus on comparison of gravity model estimated with ordinary least squares and Poisson pseudo-maximum likelihood with regression techniques based on machine learning, namely support vector machines, random forests, and arti_cial neural networks. I discuss the advantages and disadvantages of these approaches and compare their forecasting accuracy on exports data. I demonstrate that random forest models and arti_cial neural networks provide superior forecasting accuracy.
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Legislative Process in EU: Statistics and Overview
Kovařík, Tomáš ; Burget, Radek (referee) ; Očenášek, Pavel (advisor)
This bachelor thesis focuses on the legislative process of the European Union in terms of carrying out every single step of the process. The first part deals with the legislative process and its steps which are further analyzed along with the individual approval procedures. The second scheme of the application together with various kinds of statistics is described in the second part. The Third part deals with the description of the formerly created application for the depiction of created outlines, charts and statistics.
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Model of communication system with the PLC channel
Kovařík, Tomáš ; Krajsa, Ondřej (referee) ; Mlýnek, Petr (advisor)
The aim of this work was to develop a model of a communication system with the PLC channel. The model contains different types of modulations with the possibility of their settings. The impact of a disturbance on different numbers of states QAM modulation has been evaluated. The theoretical part describes the PLC technology with its functions and the most widely used narrowband modulation.
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Ground-source heat pump
Kovářík, Tomáš ; Horák, Petr (referee) ; Počinková, Marcela (advisor)
Master’s thesis deals with the theme in three parts theoretical, practical and experimental. Project deals with heating nursery school and experiment deals with capacity reduction borehole heating exchanger for ground – source heat pump.
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