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Drones (UAVs) in the area of emergency services (Integrated Rescue System)
Bobek, Jan ; Baumgartnerová, Alena (referee) ; Rujbrová, Šárka (advisor)
Drony jsou v oblasti integrovaného záchranného systému používány stále častěji, díky jejich lepší dostupnosti a ceně. V policejní oblasti jsou drony využívány k monitorování různých akcí nebo hlídání podezřelých oblastí. Policie drony také využívá k rekonstrukci dopravních nehod. V hasičské oblasti se drony používají hlavně k monitorování požárů a předávání informací pilotovi dronu, ale jsou vyvíjeny i drony určené k hašení požárů. V urgentní medicíně jsou drony využívány k přepravě vybavení a krevních vzorků v místech, kde to pozemními prostředky není možné nebo to je obtížné. Cílem této bakalářské práce je poskytnout přehled dronů využívaných v oblasti integrovaného záchranného systému a popsat technologie související s těmito drony.
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Heating of administrative building
Bobek, Jan ; Počinková, Marcela (referee) ; Topič, Jan (advisor)
The dissertation deals with heating of the administrative building. The building is heated with the floor heating and the panel heating units. The heating source is an air to water heat pump with a bivalent heating from the central heat supplying (CZT). I deal in the project with design, dimension and connection of all these parts.
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Studying of Gene Expression Involved in Hyaluronic Acid Synthesis in Streptococcus Equi Subsp. Zooepidemicus Using DNA Microarrays and Real-Time PCR
Hrudíková, Radka ; Šeda,, Ondřej (referee) ; Bobek,, Jan (referee) ; Velebný, Vladimír (advisor)
Hyaluronic acid (HA) is an important substance, which is mostly used in pharmaceutical and cosmetic industry. This substance is commonly found in the human body. HA is one of the factors contributing to virulence of microorganisms. Some bacterial strains produce hyaluronic acid in the form of a mucoid capsule that encapsulates the cell to protect bacteria against the immune system of the host organism. One of the main producers is the bacterial strain Streptococcus equi subsp. zooepidemicus. Contipro a.s. uses the strain CO4A to produce hyaluronic acid in large scale. The production strain was obtained by random mutagenesis by UV light. The aim of the work was to study changes in the genome, which led to a significant increase in hyaluronic acid production, using DNA microarray and real-time PCR (qPCR). The genome of the strain CO4A was sequenced and compared to reference ATCC35246 [1]. The size of the genome is 2,167,251 bp and 83 relevant variants (59 SNV and 34 indels) have been identified. Variants in coding regions were annotated and amino acid sequence changes were determined. In SNV mutations there was a change in the amino acid sequence in 45 cases. The change was identified in every case of indel mutations. The expression level of selected groups of genes was monitored in both strains by the method of DNA microarrays. A cascade of increased expression level of amino sugar metabolism genes leading to the synthesis of UDP-N-acetyl glucosamine was observed in strain CO4A (the increase in expression level of these genes compared to ATCC35246 was on average 28 %). Subsequently, the expression of selected genes was verified by qPCR. There was no significant difference in the expression level of the has operon genes of both strains. The effect of supplementation of the culture medium with N-acetylglucosamine (GlcNAc), which is one of the precursors of HA synthesis, was also studied by qPCR. A positive effect of the supplementation of the culture medium with external GlcNAc in the CO4A strain has been recorded. Also, the supplementation has positive effect on the yield of HA from the medium (increase in yield was on average by 17 %). GlcNAc has been shown to have a positive effect on the yield of HA in ATCC35246 strain as well (increase in yield was 9 % on average), but no significant changes in the expression levels were found in selected groups of genes in ATCC35246.
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Preparation and testing of SNOM probes
Bobek, Juraj ; Neuman, Jan (referee) ; Spousta, Jiří (advisor)
Fotonická krystalická vlákna (PCF) představují slibný nástroj pro spojení technik známých z mikroskopie rastrovací sondou, elektronové mikroskopie a systémů pro vstřikování plynu. Přivedení světla a přenos pracovního plynu současně do blízkosti vzorku umístěného uvnitř elektronového mikroskopu přináší nové možnosti experimentů. PCF by mohly být použity nejen k charakterizaci nebo modifikaci struktur na mikroskopické úrovni, ale také k jejich výrobě. Tato práce se zabývá výzkumem literárních zdrojů s tématikou fotonických krystalů s důrazem na PCF. Leptání PCF pomocí kyseliny fluorovodíkové bez poškození jejich vnitřní struktury je experimentálně studováno s velkou precizností. Optické vlastnosti závislé na geometrii PCF jsou testovány pro různé modifikace PCF. Dále se práce zabývá spojením PCF s mikroskopií atomárních sil a následnou integrací do elektronového mikroskopu.
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6S RNA as a tool for increased production of clinically relevant antibiotics
Kostílek, Štěpán ; Bobek, Jan (advisor) ; Ulrych, Aleš (referee)
Streptomyces belong to the group of soil microorganisms, and they are significant producers of biologically active substances used in a wide range of industries, whether it is medicine, agriculture or biotechnology. It is for this reason that the research of these microorganisms is of interest to a number of research institutions. One of the most important groups of these biologically active substances are antibiotics. A significant part of antibiotics produced in nature is produced precisely by streptomyces, and therefore it is in our interest to understand the mechanisms that influence this production. A wide variety of different regulatory mechanisms controlling antibiotic production have been found so far in streptomyces. One of these regulatory mechanisms is the utilization of scr3559 RNA. Scr3559 RNA is a small, non-coding RNA molecule that regulates antibiotic production at the level of DNA transcription. These small RNA molecules mimic the structure of the target promoter sequence and are able to interact with RNA polymerase. The presence of scr3559 RNA has not been confirmed in streptomyces as of yet, but new scr3559 RNA molecules are still being sought. To find new molecules, in silico methods are used, where the similarity of the scr3559 RNA sequence of S. coelicolor with homologous...
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Steel structure of the amphitheater
Bobek, Tomáš ; Barnat, Jan (referee) ; Štrba, Michal (advisor)
The thesis deals with the design and structural assessment of the steel structure of the amphitheater in Proseč. The dimensions of a floor plan are 55x45 m and the height is 13,605 m. The structure consists of three primary trusses, the distance between them is 27,5 m. The trusses are pin supported by columns. The primary trusses are connected by five secondary trusses, which bear tertiary trusses and at the same time form the longitudinal stiffening of the structure. The secondary trusses are connected by transverse tertiary trusses, which are used for anchoring the roof sheathing. The spatial rigidity of the structure is ensured by roof wind stiffeners and longitudinal struts. The roof is clad with SATJAM trapezoidal sheets. The structure is based on deep foundations.
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Monitoring of Pleural Effusion Parameters During the Treatment of Chest Empyema
Matuchová, Inka ; Krejsek, Jan (advisor) ; Bobek, Vladimír (referee) ; Vodička, Josef (referee)
Monitoring of pleural effusion parameters during the treatment of chest empyema Chest empyema is a severe complication with collection of pus in the pleural cavity. The mortality rate of chest empyema is up to 40 %. Generally, treatment involves a drain insertion into the inflammatory focus and pleural space irrigation with local application of medication. These processes are usually lengthy with high risk of relapse. Our aim is to shorten the period of treatment using cytological-energy analysis of pleural effusions. This approach is based on simultaneous cytological and metabolic investigation of the pleural effusions. Results allow us to determine the type and intensity of local immune response in the pleural cavity. Repetitive investigations of pleural effusions in time give us information aiming the development of local immunity response in the pleural cavity and can follow the effect of therapy. Our goal is to define the theoretical framework for application of cytological-energy analysis of pleural effusions in patients with chest empyemas. The determination of the catalytic activities of aspartate aminotransferase (AST) and lactate dehydrogenase (LDH) in pleural effusions as parameters of tissue damage is introduced by us. We established that cytological-energy analysis of pleural effusion...
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The effect of 6S-like RNAs on physiological differentiation of Streptomyces coelicolor
Burýšková, Barbora ; Bobek, Jan (advisor) ; Branny, Pavel (referee)
The variety of bacteria and their genomes sometimes causes conservation of homologue molecules to be displayed not in sequence but in secondary and tertiary structures. In the case of the regulatory 6S RNA, sequence homologues have been found in over 100 bacterial species so far. However, none were found in the genus Streptomyces. The unique genome of these soil- dwelling bacteria, known for their capacity to produce antibiotics, has a high G/C content and diverges substantially from distantly related bacteria. Yet in the non-coding 6S RNA it is the secondary structure that is crucial for its function. The 6S RNAs trap sigma factors by mimicking target promoter sequences in order to help with switching sets of expressed genes during developmental transitions. 6S-like RNA genes in Streptomyces coelicolor have been computationally predicted by comparison of in silico modelled secondary structures of known 6S RNAs. The aim of this thesis was the verification of these 6S-like RNA predictions. The experimental approach was based on RNA co-immunoprecipitation (RNA CoIP), as well as RT- PCR from RNA samples. The outcomes of this project are the detection of six novel ncRNA transcripts with possible 6S-like RNA functions, which also served as the wet-lab verification of the in silico prediction technique...
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Study of the key points of lincomycin and celesticetin biosynthesis
Vobruba, Šimon ; Janata, Jiří (advisor) ; Bobek, Jan (referee) ; Kutejová, Eva (referee)
Lincosamides form a small but important group of specialized microbial metabolites with antibiotic activity. The most important members of this group are celesticetin and clinically used lincomycin. Structurally, lincosamides are composed of an amino sugar and an amino acid connected by an amide bond. The amino acid precursors of both lincosamides remarkably differ. Proteinogenic L-proline is the precursor of celesticetin, while an unusual amino acid (2S,4R)-4-propyl- L-proline (PPL) is incorporated in the more efficient compound lincomycin. Surprisingly, both these precursors are recognized and activated for further biosynthetic steps by homologous adenylation domains CcbC and LmbC, respectively. The detailed description of this amino acid recognition and activation step, which is critical for the biological activity of the resulting compound, was the aim of the first part of this thesis. The site-directed mutagenesis of the LmbC substrate binding pocket and biochemical characterization of resulting mutants were employed to identify the residues crucial for the activation of PPL. Subsequently, we experimentally simulated the molecular evolution leading from L-proline-specific substrate binding pocket (like in CcbC) to the PPL-specific enzyme (LmbC). The substitution of only three amino acid...
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