National Repository of Grey Literature 17 records found  1 - 10next  jump to record: Search took 0.00 seconds. 
Electrochemical Characterization of Nanostructured Surfaces Modified by Substancies with Thiol Bound
Urbánková, Kateřina ; Kynclová, Hana (referee) ; Hrdý, Radim (advisor)
This master thesis deals with nanotechnology, nanoparticles and nanostructured surfaces, electrochemical methods, especially voltammetry, cyclic voltammetry, electrochemical impedance spectroscopy and contact angle measurement. One part is focused on electrodes primarily nanostructured and modified by substancies with thiol bound. Tutorial for preparation of gold nanostructured electrods is introduced in practical section including SEM photos of electrode surface. Nanostructured and bare gold electrodes were modified by 11-mercaptoundecanoic acid, streptavidin, glycine and biotin and measured by cyclic voltammetry, electrochemical impedance spectroscopy and contact angle.
Electrochemical impedance spectroscopy as a nanostructured bioelectrodes characterization method
Vrbová, Eva ; Urbánková, Kateřina (referee) ; Hrdý, Radim (advisor)
Diploma thesis deals of nanostructured surfaces, nanoparticles and electrochemical characterization methods such as cyclic voltammetry, differential pulse voltammetry and electrochemical impedance spectroscopy. The aim of this thesis is a theoretical research issues of production and characterization nanostructured modified electrodes. The practical part is the production of biomodified nanostructured electrodes by anodi- zation W/Al layers with galvanic deposition of gold or deposition of mercury, a modifi- cation of the electrodes by 11-mercaptoundecanoic acid and by bovine serum albumin (BSA). The thesis includes SEM images of nanostructured electrodes contact angle mea- surements of these electrodes and form an electrical circuit with subsequent simulation waveforms.
TiO2 nanoporous surfaces and their properties
Roček, Vojtěch ; Urbánková, Kateřina (referee) ; Drbohlavová, Jana (advisor)
This thesis is focused on creation nanostructured surfaces of titanium dioxide and the use of photocatalytic activity of these surfaces for antimicrobial applications. The work is divided into nine main chapters, in which the literature search for producing these surfaces, the principle of photocatalysis and their typical specifics was made. These theoretical findings are then used to form such layers, analyzing their chemical and physical properties and practical verification of their antimicrobial activity. This work experimentally verified processes to ensure the increase of antimicrobial activity. The results and findings are discussed in the conclusion.
Nanostructured TiO2 as the surface for the investigation of cell behaviour
Poláková, Kateřina ; Urbánková, Kateřina (referee) ; Fohlerová,, Zdenka (advisor)
This thesis deals with the study of cells on nanostructured surfaces of titanium dioxide, which are produced by the electrochemical method called anodic oxidation. The theoretical part is formed by an overview of manufacturing nanostructured surfaces using anodic oxidation method. It mentions the influence of external factors on the geometric parameters of the structure and description of methods of characterization structures. Furthermore there is processed outline of use for biomedical application and the description of interaction of the cell with surface. The practical part includes description of the production of nanoporous and nano-tubular structures made on thin films of titanium by direct method of anodic oxidation on which was studied the influence of external factors. Described a procedure and production of nanorods structures and nanodots generated using alumina template (AAO) which is subsequently carried out the study of the behavior of cells, which includes tests of adhesion, examination of morphology of cells, assays of proliferation and differentiation. Structures are under investigation of the interaction of cells with the nanostructured layer compared with the smooth surface of the titanium dioxide.
Identifying CpG islands in genomes of eukaryotes
Urbánková, Kateřina ; Provazník, Ivo (referee) ; Maděránková, Denisa (advisor)
Bachelor thesis deals with searching CpG islands in DNA. The theoretical part describes the structure and composition of deoxyribonucleic acid, chromosomes and genes. There is basic information about human and chimpanzees genome and specification of CpG islands. Practical part consists of a program that searches for CpG islands in sequences, it displayes and saves it. This work includes analysis of genes which are common for Homo sapiens, Pan troglodytes, Mus musculus and Bos taurus.
Klíčové faktory výkonnosti podnikatelských subjektů v odvětví stavebnictví
Urbánková, Kateřina
This master thesis is concerned with the identification of the key factors that affect the performance of selected enterprises in the construction sector. For the determination of the main targets was chosen to compare two companies and sectors. The thesis introduction describes the current situation in the construction industry, its impact on the Czech economy and economic development. After the general characterization of the sector, it was made a literature research, which describes the theoretical background needed for the practical part of the thesis. In particular these include concepts, that deal with the evaluation of business performance, and specifically the fundamentals of financial analysis and advanced indicators of performance measurement, where it is mainly described indicator EVA. The next section of the thesis presents analysed companies and there is processed strategic analysis, namely by PESTE analysis and SWOT analysis. A main part of thesis consists of financial analysis and calculation of economic value added, particularly by method EVA equity. The next part by using sensitivity and correlation analysis identifies key factors influencing the resulting value of indicator EVA, and thus the performance of selected enterprises. The conclusion is devoted to the discussion and draft recommendations to increase efficiency and competitiveness of rated companies.
Chemické složení jehněčího masa
Urbánková, Kateřina
This bachelor thesis describes development and current situation in numbers of sheep in the world, in the European Union and in the Czech Republic. Sheep meat production in the EU and import and export of this commodity are also mentioned in the thesis. In addition to current numbers of sheep in the Czech Republic, the thesis shortly describes history of sheep breeding and lamb (sheep) meat production focusing on marketing. The main part of this thesis is focused on chemical composition of lamb meat and the factors which affect above mentioned. The most important factors influencing the chemical composition are breed, age, gender and nutrition. Finally, the thesis deals with the value of lamb meat in human nutrition in terms of consumption and possible effect on human health also. Risk of cardiovascular diseases, cancer and diabetes mellitus type 2 are the most discussed topics regarding to consumption of red meat (including lamb meat).
Vliv pohlaví na jatečnou hodnotu a chemické složení jehněčího masa
Urbánková, Kateřina
The evaluation of the effect of sex on carcass value and chemical composition of lamb meat was the main aim of this disertation. The monitoring was carried out at an orgnic farm in Proseč where 8 ewes and 8 rams of genotype Š 75 T 25 (Š - Šumavská sheep, T - Texel) were involved in the study. The first part of the disertation shortly summarizes history and current situation in sheep breeding in the Czech Republic. Afterwards, there are described sheep and lamb marketing, the slaughter processing and chemical composition of lamb meat. In the next part there are described the other details of our monitoring. Within the frame of our study we determined daily gains of lambs, carcass yield, conformation and fattiness as well as the proportion of leg, shoulder, kidney and kidney fat. The effect of sex on selected offals was evaluated simultaneously. In terms of chemical composition, we determined the contents of dry matter, protein, crude nitrogen, intramuscular fat (IMF) and ash. The rams had a higher daily weight gain and carcass yield, while ewes had higher fattiness, a proportion of kidney fat and a proportion of the leg. In terms of offals evaluation, rams had higher proportion of liver while ewes had higher proportion of spleen. Despite expectations, there was no significant difference in content of IMF, however rams had higher contents of dry matter and protein. Although there have been observed differences between sexes in some indicators, these differences were not statistically significant.
Support of Aesculapian snake (Zamenis longissimus) reproduction in the Poohří region
Urbánková, Kateřina ; Šťastný, Karel (advisor) ; Ivan, Ivan (referee)
The purpose of this batchelor thesis is to make a literature review about reproduction of Aesculapian snake (Zamenis longissimus) and the posibilities for an active support supplementig with my own studies. Literature research is focused primarily on the reproduction of aesculapian snake then on the characteristic of the species, biological and ecological claims. It also deals with extension the aesculapian snake in her normal area and also in the Czech Republic. It pursue the causes and threats to this snake. More specificely, focuses on the protection statute and the overal status of the population of this species. The last section of this research is devoted to bailout program and practical protection. The second part of this batchelor thesis is devoted to my own study where the aim was to verify the possibility of using garden composters for reproduction Aesculapian snake in Poohří area. In this section are results of the first season observing the mutual comparison of individual surveyed sites.
Porovnání  kvalitativních a kvantitativních vlastností klonu moštové odrůdy - Sauvignon
Urbánková, Kateřina
The aim of this dissertation was to compare qualitative and quantitative of a Sauvignon clone samples, describe and evaluate particular phenological phases and uvology values, describe and evaluate the analysis of must. The experiment was established in the viticulture Vineyards -- Hnanice. On three variants of Sauvignon clones differences in phenological phases in the same conditions were observed. Subsequently analytical values of must from each clone were evaluated. The sugar content, titratable acids, the pH, the yield per a bush, the weight of 50 berries, the average weight of a bunch of grapes, the average weight of a berry, the yield of grapes per a bush were monitored. The results showed that the Austrian A clone that has been the weakest in a growth, had the highest values, and vice versa French clone F 316 with the most extravagant growth had the lowest values. The results showed that it is advisable to plant more clones with different properties. The results were statistically analyzed and compared with attempts by other authors.

National Repository of Grey Literature : 17 records found   1 - 10next  jump to record:
See also: similar author names
1 Urbánková, Karolína
1 Urbánková, Klára
2 Urbánková, Kristiana
6 Urbánková, Kristýna
1 Urbánková, Krystyna
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