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Radar Altimeter for Ultramicro Airplanes
Imrich, Marek ; Maršík, Lukáš (referee) ; Zemčík, Pavel (advisor)
Radar equipment is an integral part of the aviation sector. It is very important to use a suitable module to guide ultralight aircraft during landing. The bachelor thesis is focused on the use of altitude radar based on the microwave sensor IWR6843ISK manufactured by TEXAS Instruments and its application in practice for ultralight aircraft. Its ability in conjunction with a computer is the altitude guidance of an ultralight aircraft to the runway by generating sound tones to indicate to the pilot the distance above the terrain. The main goal of this work is to design a model for the use of a microwave module in conjunction with a computer and its subsequent testing of the suitability for use in performing a landing maneuver. The aim of this work is to design a system that works with millimeter radar and its evaluation of usability in practice. The proposed module generates point clouds, which are then parsed, then the output data are suitably correlated, further transformed to the exact height of the aircraft above the terrain with subsequent sound interpretation to the pilot.
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Classification, structure and function of α-adrenergic receptors.
Makarova, Anna-Marie ; Hejnová, Lucie (advisor) ; Rudajev, Vladimír (referee)
Adrenergic receptors are ones of the most investigated receptors today. Signal transduction by adrenergic receptors is involved in stress response. Stress activates the sympathicus and the hypothalamic-pituitary-adrenal axis of autonomic nervous system. Understanding effects of this activation on adrenergic signalisation is important for affection of the "fight of flight" reaction. Affecting the activity of sympathetic nerve sis important subject of interest in pharmacology and many drugs are developed using this actions. This thesis deals with a group α-adrenergic receptors and its subtypes. One part is devoted to structure which is subject of many explorations recently especially. Next chapter focuses on signal transduction mediated by α-adrenergic receptors. The last section refers to multitude of physiologic functions induced by these receptors. Powered by TCPDF (www.tcpdf.org)
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Radar Altimeter for Ultramicro Airplanes
Imrich, Marek ; Maršík, Lukáš (referee) ; Zemčík, Pavel (advisor)
Radar equipment is an integral part of the aviation sector. It is very important to use a suitable module to guide ultralight aircraft during landing. The bachelor thesis is focused on the use of altitude radar based on the microwave sensor IWR6843ISK manufactured by TEXAS Instruments and its application in practice for ultralight aircraft. Its ability in conjunction with a computer is the altitude guidance of an ultralight aircraft to the runway by generating sound tones to indicate to the pilot the distance above the terrain. The main goal of this work is to design a model for the use of a microwave module in conjunction with a computer and its subsequent testing of the suitability for use in performing a landing maneuver. The aim of this work is to design a system that works with millimeter radar and its evaluation of usability in practice. The proposed module generates point clouds, which are then parsed, then the output data are suitably correlated, further transformed to the exact height of the aircraft above the terrain with subsequent sound interpretation to the pilot.
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Counterbalances: antagonistic regulation of fission yeast growth and proliferation under favourable conditions and stress
Hohoš, Patrik ; Převorovský, Martin (advisor) ; Groušl, Tomáš (referee)
Microorganisms come across dramatically changing conditions in the environment. It is important for them to be agile for a quick and effective response. Signal transduction pathways are essential for this ability. They can sense a broad spectrum of extracellular and intracellular stimuli and regulate a great number of processes in the cell. For unicellular microorganisms, the most essential ability is to sense environmental conditions for proliferation or abnormal stress conditions. One of the most popular model microorganisms, the fission yeast Schizosaccharomyces pombe, is used for the signal transduction pathways research. Findings obtained by research on the fission yeast are applicable to other eukaryotic organisms, thanks to the high conservation of the signal transduction pathways between the fission yeast and other eukaryotic organisms. Proliferation-promoting signal transduction pathways promote cell proliferation, growth and mitotic cell cycle in fission yeast. The stress-response signal transduction pathways play an opposite role. They promote cellular defence against stress stimuli and promote the sexual differentiation process alongside meiotic cell cycle. At first sight, the whole machinery may look like a switch mechanism. There is, however, a more complex crosstalk mechanism...
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Ultraviolet patterns in flowers and their significance as a signal to pollinators
Zitko, Martin ; Pecháček, Pavel (advisor) ; Janeček, Štěpán (referee)
Various animals are sensitive to ultraviolet light and many angiosperms make use of this ability to communicate with their pollinators. Therefore plants often dis- play patterns on their flowers and inflorescences visible only in ultraviolet light. The origin of these patterns is both pigment-based and structural-based, resulting in UV absorbing or UV reflecting flower. The main goal of this thesis is to give a summary of ultraviolet light as well as explore how plants produce ultraviolet pat- terns and present their actual appearance. I also pay attention to the characteristics of pollinators' vision with emphasis on ultraviolet light, and to the biological signifi- cance of ultraviolet flower signals for the pollinators. Gaps in knowledge are implied as well. The result of the thesis shows that ultraviolet light has an unquestionable significance in the relationship of angiosperms and their pollinators. It also shows a coevolution of ultraviolet patterns and pollinators' preferences for them. Keywords: ultraviolet, flower pattern, bull's eye, signalisation, pollinator
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Changes in opioid signalisation during the ontogenesis.
Hoľuková, Martina ; Hejnová, Lucie (advisor) ; Škrabalová, Jitka (referee)
Opioid receptors interact with opiate compounds, causing the inhibition of neuroexcitability. The activation of signaling pathway of opioid receptors plays crucial role in the treatment of chronic and cancer pain. Summary of the general knowledge about opioid receptors and about the development of tolerance is in the first part of this work. Next part of the thesis concerns on ontogenesis of opioid receptors and other components related to the opioid signaling pathways as age seems to have an immense influence on molecules within and related to the opioid signaling. Finally, last part of this work collects data about the influence of morphine during ontogenesis as morphine is one of the most used opiate compound used in clinical treatment. Key words Opioid receptor, signalization, ontogenesis, addiction, tolerance, morphine
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Classification, structure and function of α-adrenergic receptors.
Makarova, Anna-Marie ; Hejnová, Lucie (advisor) ; Rudajev, Vladimír (referee)
Adrenergic receptors are ones of the most investigated receptors today. Signal transduction by adrenergic receptors is involved in stress response. Stress activates the sympathicus and the hypothalamic-pituitary-adrenal axis of autonomic nervous system. Understanding effects of this activation on adrenergic signalisation is important for affection of the "fight of flight" reaction. Affecting the activity of sympathetic nerve sis important subject of interest in pharmacology and many drugs are developed using this actions. This thesis deals with a group α-adrenergic receptors and its subtypes. One part is devoted to structure which is subject of many explorations recently especially. Next chapter focuses on signal transduction mediated by α-adrenergic receptors. The last section refers to multitude of physiologic functions induced by these receptors. Powered by TCPDF (www.tcpdf.org)
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