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Analysis of Some Indicators of the Company VÚEZ, a.s. Using Time Series
Vicenová, Ivana ; Kubica, Ing, Juraj (referee) ; Kropáč, Jiří (advisor)
The content of this bachelor’s thesis is the analysis of some selected indicators of company VÚEZ Inc. using time series. In the first theoretical part, there is prepared theoretical base for the calculation and the use of regressive analysis and time series. The second, practical part, is focused on the introducing the company, analysis of the specific indicators using time series and the assessment of them. There is also prognosticated another trend of indicators and suggestions to follow or change the trend of selected indicators.
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An Impact of Financial Crisis on Corporate Lending
Frech, Petr ; Stryczková, Květoslava (referee) ; Rejnuš, Oldřich (advisor)
The bachelor thesis is concerning of an financial crisis and its impacts to credit conditions of company loaning. In teoretical part there are basic knowledge of loans, interest rates and description of actual financial crisis. In practical part there is progress of interest rates and credit conditions. Result of this bachelor thesis is interpretation of an impact financial crisis on corporate loaning and recommendation for companies.
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Dynamika růstu buku lesního (Fagus sylvatica L.) ve smíšeném lese a monokultuře ve Východních Karpatech
Vyčítalová, Hana
The study observes the difference in the growth dynamics of common beech (Fagus sylvatica L.) in monocultures and in stands with admixture of conifers like Norway spruce (Picea abies L.) and/or Silver fir (Abies alba Mill.) in the Eastern Carpathians. Point dendrometers and soil humidity sensors were used for measurement of tree growth and water availability that took place near the Râșca in the Suceava region. Out of the growing season, hemispherical ("fish-eye") images were also taken to evaluate canopy openness. Mixed models were used for the statistical evaluation of the data. Negative effect of increasing the percentage of conifers in the stand on growth and the maximum growth rate of beech was found insignifficant, which give an evidence of beeches strong competitive ability in habitats with favorable conditions. However, a negative effect of a higher admixture percentage of conifers on the availability of water in the soil was signifficant, probably due to higher interception, which indicates possible problems when growing beech with a high admixture of conifers in drought-prone locations. The growth rate was highest at the turn of June and July, which refers to the dependence of beech growth dynamics on the solar cycle and indicates that drought could have the strongest negative impact on growth in the period around the summer solstice. On the basis of the obtained results, beech silviculture could be recommended with only a small admixture of conifers, and the admixture of other deciduous trees should be preferred in order to reduce the interception of the stand
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Growth rate of dominant cyanobacteria with different strategies from pond ecosystems
SYSLOVÁ, Petra
The thesis deals with fast growing unicellular cyanobacteria (Synechocystis sp. PCC 6803 and Cyanobium gracile A1) and slower growing filamentous cyanobacteria capable of fixing atmospheric nitrogen (Anabaena lemmermannii, Anabaena compacta and Anabaena reniformis). The experiment was designed to observe the growth of selected representatives from both these types at different temperatures in media with different concentrations of nitrogen. Growth was measured using on optical density at a wavelength of 550 nm. The results from the individual measurements were graphically evaluated using growth curves. The cell size and cell volumes of each strain were also determined. It was concluded that at higher temperature and at higher nitrogen concentrations, most of the cyanobacteria showed higher growth. It can be concluded that during the summer period, in our ponds with sufficient nitrogen, these cyanobacteria will readily increase their biomass and thus influence pond management.
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Rychlost růstu dominantních rybničních sinic
SYSLOVÁ, Petra
The bachelor thesis deals with the determination of cyanobacterial growth from ponds. The results are used to determine the growth potential in connection with eutrophication, i.e. increasing the concentrations of nutrients in water. Cultured strains of Cyanobium gracile A1 and Synechocystis sp. PCC7509 were used in the experiment. To determine their growth, static cultivation was used in culture plates with different well volumes of Thermo Scientific NunclonTM Delta Surface 96 Well and Cellstar 48 Well Cell Culture Plate, which were evaluated as the most suitable from the first part of the experiment. Cyanobacteria were cultured in concentrations from 0.06 to 30 mg P mg/l in Z medium. To measure the growth, a spectrophotometer measuring fluorescence and absorbance was set up at OD750 nm wavelength. At this wavelength cyanobacteria have negligible absorption and therefore turbidity was used to measure biomass. Growth curves were created from individual measurements and are shown in the form of graphs. The results show that the highest concentration used, 30 mg P/l, caused growth inhibition. Cyanobacteria in an environment with a concentration of 0.06 mg P/l showed acceptable growth values. However, at a concentration of 0.46 mg P/l, which is twice the current concentration of P in ponds, cyanobacteria showed much higher growth values. And even at a concentration of 15 mg P/l, cyanobacteria reached the highest growth values. It can therefore be expected that if the concentration of P in the ponds rises to the values of 15 mg P/l, a rapid development of cyanobacteria will take place in the pond. At the end of the experiment, I was supposed to measure the growth rate in the lighting gradient, but due to the announcement of the closure of universities due to the COVID - 19 virus, I was not able to fulfil that.
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Potential and limits of cultivation of brackish and freshwater populations of tubular morphotypes of Ulva (Ulvophyceae) in food industry or biotechnologies
Kantnerová, Veronika ; Neustupa, Jiří (advisor) ; Hejduková, Eva (referee)
The green macroalgae from genus Ulva are commonly used in biotechnology as a source of biomass for the production of biofuels or in bioremediation, but mostly for processing in food industry in Asia and other coastal regions. Within Europe, these algae belong to the so-called "approved novel food", however the species which are mainly used have the leaf-like morphology and they are usually imported, so the usage of local European resources is relatively very low. However the tubular morphotypes of the genus Ulva (originally included in the genus Enteromorpha) might probably be an equally promising source of biomass for the use in food industry and other sectors. They show high resistence to wide range of abiotic conditions and they occur not only in marine localities, but also in brackish or even freshwater ecosystems. Considering this, they seem to be a promising source for processing in Central Europe as well. In this study were isolated and cultivated two populations of the genus Ulva typical for the tubular morphotypes. One was from brackish locality in the Baltic sea (Ulva flexuosa) and one from freshwater locality in Czech Republic (Ulva pilifera). The aim was to evaluate their cultivation potential for their potential use in food industry. Their growth rates were observed during the...
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Oyster bioherms in the Bohemian Cretaceous Basin
Rantuch, Jakub ; Košťák, Martin (advisor) ; Frank, Jiří (referee)
Frustration from shape and size variability of oyster's species Rhynchostreon suborbiculatum (Lamarck) is long known phenomenon. In current state of his systematic it is not possible to consider it fully satisfying. Is it is shown in study of genus Gryphaea by Jones and Gould (1999), that application of modern analytical methods, undoubtly lightens long-darkned places of evolution process. Idea of Videt and Neraudeau (2003), that shape variability of Rhynchostreon suborbiculatum (Lamarck) probably also mirrors heterochronic processes, introduces inspirative and good foundation for future research in this field. Occurence of this oyster is proved from huge range of sites in Bohemian Cretaceous Basin area. It is combination of rich occurance, unique preservation and variability of lithological settings, which gives us unique starting point for next step to solve significant problem. Based on population analyses consisting of biometrical studies supported by oxygen isotope analyses, in future, it will be possible to reach sufficient conclusions of this issue, and progress in our knowledge.
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Differences in growth parameters in SGA / IUGR children and patiens with growth hormone deficiency treated with recombinant growth hormone
Kročilová, Kateřina ; Sedlak, Petr (advisor) ; Lisá, Lidka (referee)
In the Czech Republic is born to 5 % of SGA / IUGR children, about 5, 000 children a year, and their incidence is increasing. In 10 - 15 % does not occur postnatal compensation growth acceleration and growth retardation is then further deepens. Since 2003, these children can be treated by recombinant growth hormone in supraphysiological doses. Master thesis brings informations about SGA / IUGR children and their growth parameters during the first 2 years from the beginning of treatment when the monitoring was carried out at three - month intervals. The results are compared with the group of patients treated with growth hormone for growth hormone deficiency. Growth data was processed by a group of 57 SGA / IUGR children, which was compared with data of 34 children with growth hormone deficiency treated between 2003-2015 with growth hormone. Treatment of both groups of patients was carried out by a suitable therapeutic protocol, with the dose of GH by the respective diagnosis. These parameters were monitored: body height and weight, growth rate, BMI and weight - height ratio of patients. SGA / IUGR and GHD patients showed different growth profile in the initial phase of treatment when GHD patients had higher acceleration peak after 3 months of starting treatment and steeper increase in growth rate....
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Relationship between egg size and incubation time in geckos
Mrskočová, Jana ; Kratochvíl, Lukáš (advisor) ; Frynta, Daniel (referee)
Previous studies of the relationship between egg size and the embryonic development time showed a positive correlation between the two variables at interspecies level, thus offering the idea that the evolution of the latter could be a limiting factor for enlarging the size of eggs during evolution. Some research into interspecies and intraspecific level of reptiles doesn't confirm this correlation. At the same time, the relationship between the development time and egg size is influenced by many factors, such as shifts in ontogenetic stages of the embryo at the time of ablation of eggs, due to temperature and humidity, the presence of embryonic diapause during embryogenesis or synchronization of hatching time, of which the authors of previous studies took no account or filtered out inaccurately. I think that most of these factors can be well controlled in intraspecific studies, but, variation in egg size within species also tends to be small, which prevents a reliable test for correlation. The solution can be to compareclosely related species with high variability in the size of the eggs, in our case the geckos of the genus Paroedura and family Eublepharidae. I eliminated temperature effects by comparing the time of incubation in two equal constant temperatures. The results show that, in this narrower...
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