National Repository of Grey Literature 2,329 records found  previous11 - 20nextend  jump to record: Search took 0.40 seconds. 

Financial analysis of chosen company
Nguyen, Viet Tiep ; Homolka, Jaroslav (advisor) ; Kotyza, Pavel (referee)
This bachelor paper is focused on the subject of financial analysis. The paper is divided into two parts, where the first part of the paper is theoretical and the second part is practical. The theoretical part explains financial analysis, its usage in business field and its absolute, ratiometric and summary indexes. The practical part of the paper is dedicated to financial analysis of a company called Partners Financial Services a. s. The data used for this analysis is from year 2011 to year 2014. Four other companies operating in field of financial consulting were analyzed for the purpose of comparison. These companies are registered by the association of financial advisers as the biggest players on the market in the Czech Republic. The financial analysis is based on financial statements of the companies in question. The end of the paper provides an evaluation of the analyzed company, where the author states, that the company is stable, profitable with low probability of bankruptcy and that the company is creditworthy.

Geographical aspects of religion – comparison of the Czech republic and Austria
Pecharová, Kateřina ; Kokaisl, Petr (advisor)
The purpose of my thesis is to map a development of religion, mainly christianity, and its different geographical aspects of the Czech republics and Austrian territory. I´d like to compare individual indicators and using questionnaires and interviews answer these questions: Nakolik tyto atributy může zachytit statistika? What are the main attributes of religiosity? The extent to which statistics capture these atributes? How does faith and religiosity vary from each other? How much does actual rate of religiosity and real faith vary? Do the statistics give us a realistic information about religion and its part in mentioned countries? Why do the rate of religiosity in the Czech republic and Austria vary so much from each other considering that they are neighboring countries. Are Austrians considering their high rate of religiosity really more religious than Czechs as an atheistic nation?

Evaluation of soil variability based on measuring the soil electrical conductivity.
Votavová, Eliška ; Kroulík, Milan (advisor) ; Novák, Petr (referee)
The aim of this diploma thesis was to verify the new capabilities for mapping variability of soil using measurement platforms mounted on machines for tillage. The chapter Soil describes types of soil in the Czech Republic, the causes of soil variability and the methods of spatial interpolation. The chapter Mapping Spatial Variability of Land focuses on the method of determining the variability of soil properties through direct and indirect methods, selection of locations for collection of soil samples, methods of measuring electrical conductivity and an overview of options for mapping, mainly via on-the-go sensors. The last part of the literary research is entitled Geographic Information System where I have described the purpose and uses of this system in precise farming. The subsequent practical part of the diploma thesis focuses on evaluation of the level of variability of farm land based on measuring of soil conductivity via a galvanic contact method of measuring and its subsequent comparison during use of an EM 38 MK2 soil conductivity probe. The conclusion contains a summary of the thesis and evaluation of the level of agreement between the obtained data files.

Assessment of in vitro antioxidant properties of medicinal and edible plant extracts
Tauchen, Jan ; Kokoška, Ladislav (advisor) ; Jaromír , Jaromír (referee)
Identification and characterization of plant-based products with antioxidant and anti-proliferative effects has received much interest over the past few years as possible therapeutic mean for treatment of diseases likely to be associated to oxidative stress (such as atherosclerosis, diabetes, and cancer). This study provides characterization of in vitro antioxidant and/or anti-proliferative potential and phytochemical profile of (i) 39 wine samples of underutilized Georgian grapevine cultivars, (ii) extracts of 22 samples of medicinal plants from Ethiopia and (iii) 23 samples of edible and medicinal plants from Peruvian Amazon. For this purpose, 2,2-diphenyl-1-picrylhydrazyl radical assay (DPPH), oxygen radical absorbance capacity (ORAC) assay, total phenolic content (TPC), and cell viability assay based on metabolization of tetrazolium bromide (MTT) to formazan, together with methods based on high performance liquid chromatography (HPLC-ultra violet/visible spectrometry and HPLC-tandem mass spectrometry) were used. Georgian red wines (particularly Saperavi cultivars) exhibited higher antioxidant capacity (average DPPH and ORAC values at 5.1 and = 10.6 g TE/L wine, respectively) in comparison to Central and West European cultivars [Pinot Noir (DPPH = 3.1 and ORAC = 9.4 g TE/L wine), Cabernet Sauvignon (DPPH = 3.0 and ORAC = 7.3 g TE/L wine) and Cabernet Moravia (DPPH = 2.0 and ORAC = 8.5 g TE/L wine)]. Georgian wines contained significantly greater concentrations of quercetin (between 14.44 and 1.07 ug/mL), kaempferol (between 1.68 and 0.03 ug/mL) and syringic acid (between 12.59 and 4.72 ug/mL), whereas possessed lower quantities of resveratrol (between 5.11 and 0.32 ug/mL) in comparison to Central and West European wines. Amongst edible and medicinal plants from Ethiopia and Peruvian Amazon, only Dodonaea angustifolia (IC50 for DPPH = 22.2 ug/mL, ORAC = 767.6 ug TE/mg extract; IC50 for Hep-G2 = 120.0 ug/mL), Rumex nepalensis (IC50 for DPPH = 5.7 ug/mL, ORAC = 1061.4 ug TE/mg extract; IC50 for Hep-G2 = 50.5 ug/mL), Inga edulis (DPPH and ORAC = 337.0 and 795.7 ug TE/mg extract; IC50 for Hep-G2 and HT-29 = 36.3 and 57.9 ug/mL) and Oenocarpus bataua (DPPH and ORAC = 903.8 and 1024.4 ug TE/mg extract; IC50 for Hep-G2 and HT-29 = 102.6 and 38.8 ug/mL) have demonstrated combinatory antioxidant/anti-proliferative efficacy. Selective anti-proliferative activity was observed for Verbascum sinaiticum (IC50 for Hep-G2 = 80.6 ug/mL) and Annona montana (IC50 for Hep-G2 and HT-29 = 2.7 and 9.0 ug/mL, respectively). Above-mentioned plant material showed only weak or non-toxic effects towards normal cell line. Despite the fact that extracts of Jasminum abyssinicum (IC50 for DPPH = 26.3 ug/mL, ORAC = 1023.7 ug TE/mg extract), Rumex nepalensis (IC50 for DPPH = 5.7 ug/mL, ORAC = 1061.4 ug TE/mg extract), Mauritia flexuosa (DPPH and ORAC = 1062.9 and 645.9 ug TE/mg extract), Myrciaria dubia (DPPH and ORAC = 641.9 and 642.6 ug TE/mg extract) and Theobroma grandiflorum (DPPH and ORAC = 714.8 and 821.9 ug TE/mg extract) have exhibited considerable antioxidant effect, these species were found to possess moderate to low anti-proliferative potential or have shown to be toxic to normal cells line. In all cases it was detected that phenolic compounds content correlated strongly with antioxidant activity, however weakly with anti-proliferative effect. Results suggest above-mentioned species as prospective materials for further development of novel plant-based agents effective against oxidative stress related diseases. However, it is necessary to perform further research which would be focused on detailed characterization of their chemical composition, pharmacological effects and toxicological safety, in order to verify their possible practical use.

Use of composts and vermicomposts and their extracts together with bioffectors for growing of plants.
Bouček, Jiří ; Tlustoš, Pavel (advisor)
The aim of this project will be to determine the influence of conditions during composting and vermicomposting of biodegradable waste of organic matter on physical-chemical properties of compost and vermicompost extracts. From this point of view mainly the content of basic nutrients and humin substances will be monitored and also the possible content of risk elements. In the same purpose the presence of different types of microorganisms in these extracts will be investigated and the enzyme activity of microorganisms in their extracts will be also determined. The extracts will be simultaneously prepared under aerobic and unaerobic conditions in different portion among the organic matter and its leachate and each sample variants will be compared to above conditions. The real effect of extracts applied on grown plants or into a soil including the fungicide effect of sample extracts during pot experiments will be reported. The effect of extracts will be also compared with commercial bioeffectors.

Changes of proline concentration and electrolyte leakage in the selected species of the Panicoideae tribe under water deficit.
Nováková, Hana ; Hnilička, František (advisor) ; Václav, Václav (referee)
The theme of this thesis is the impact of water deficit on the concentration of proline and electrolyte leakage from representatives of the Panicoideae tribe. The impact of drought on agricultural production in the environment of the Czech Republic is currently an important issue. The exceptionall dry year of 2014/2015 and the associated water deficit in the soil had an impact mainly on the harvest of wide-row crops, including maize. Representatives of the Panicoideae tribe - sorghum and foxtail millet are the most drought-resistance crops in the world. Sorghum and foxtail millet belong to II. group of cereals like maize. Sorghum and foxtail millet show lower transpiration coefficient than maize, they also tolerates less demanding growing conditions and are more resistant to diseases and pests. They also compete with maize in a wide range of applications. It is therefore appropriate to determine how these crops respond to water deficit during their ontogenetic development. For the purposes of this experiment genotypes originating from conditions of temperate climate were selected, this genotypes have a shorter growing season. A short growing season is an important factor in the timing of the harvest of the late sown crops in our climate. The aim of the thesis was to determine and evaluate the impact of water deficit on the concentration of proline and electrolyte leakage in selected genotypes of sorghum and foxtail millet and on the basis of the results to select genotypes with high resistance to water deficit. Based on the aims the following hypotheses were set: to determine whether there are differences in the concentration of proline and electrolyte leakage between selected genotypes depending on the effect of water deficit and whether there are differences in these physiological characteristics in response to water deficit between sorghum and foxtail millet. To fulfill the objectives and evaluation the hypothesis was based on the greenhouse experiment with selected genotypes of sorghum and foxtail millet at the Department of Botany and Plant Physiology in the Czech University of Life Sciences Prague. The experiment included 4 genotypes of the species Sorghum bicolor (L.) Moench. (Sorghum): 1216, 30485, Barnard Red and Ruzrok and one variety of the species Setaria italica (L.) Beauv. (Foxtail millet) Ruberit. A total of 4 variants were designated for the experiment (one control and three under the influence of water deficit in different times). The plants in the control variant were full irrigated throughout the experiment. Variant KS was irrigated for the first 14 days, followed by 10 days without watering and the last 4 days were again irrigated. Plants in variant SK were under the influence of water deficit for the first 10 days of the experiment, then 18 days with watering and the plants in the variant SS were without watering for the first 10 days, for the next 4 days were without watering, then the same pattern was repeated: 10 days without and 4 days with watering. Physiological characteristics were observed in plants in the developmental stages BBCH 14-16. The concentration of proline was determined by measuring the absorbance of the samples formed by the reaction with ninhydrin. Subsequently, the measured values were compared with the calibration curve. To measure the sample absorbance at 520 nm a spectrophotometer Hellios gama (Thermo) was used. Electrolyte leakage on discs made from leafs was measured with electrical conductivity meter GRYF 158 (HB Griffin, Ltd.). The obtained results show that the proline concentration increased in response to water stress, since the highest concentration of proline was detected in plants growing in the most stressed variant of SS (670.13 micrograms) compared with other variants of stress. Plants variant KS (643.85 micrograms) showed a higher accumulation than the proline in variant SK (636.69 micrograms). The highest concentration of proline was measured on a genotype in the variety of sorghum Ruzrok (642.94 micrograms). The lowest content of proline was found in the variety of sorghum 1216 (623.78 micrograms), this value was also the only significant difference from the contents of proline to other genotypes. Which at least partly confirms the proposed hypothesis that there are differences in the content of proline between genotypes. The highest electrolyte leakage cell damage was respectively exhibited in plants from the variant SS (39.56%). Plants of the SK variant showed a higher rate of cell damage (32.95%) than plants from the variant KS (29.88%). The lowest cell damage was exhibited in plants grown under control conditions, which again indicates that damage cells increases in response to water deficit. In this experiment the highest degree of cell damage was found in the variety of sorghum 1216 (29.26%) and lowest cell damage was observed in the variety of sorghum Ruzrok (27.03%). A significant different degree of cell damage appeared only in the variety foxtail millet Ruberit (28.6%), which confirms our hypothesis that there are differences in the electrolyte leakage between sorghum and foxtail millet. The hypotheses were not fully confirmed by the experiment. Nevertheless, on the basis of obtained results we conclude that the least drought-resistance genotype is the 1216 variety and the best adapted to the water deficit was the Ruzrok variety. It also confirmed that the higher proline accumulation may protect the plant against the negative effects of water deficit on the cell membranes, which is then reflected in a reduced electrolyte leakage.

Plants containing toxic substances in the garden of nursery schools
Pilařová, Kateřina ; Pavlíková, Daniela (advisor) ; Jitka, Jitka (referee)
This thesis is focused on the occurrence of poisonous plants in gardens of nursery schools, assesses the level of danger to children and awareness of teachers who ensure the safety of children during their stay in the nursery schools. Attention is paid to individual groups of plant toxic compounds. Reactions of the organism to their presence, including examples of poisoning caused some of them, and a first aid for intoxications are discussed. Mentioned are the most dangerous plants with possible occurrence in our geographical conditions, and esp. those that can entice children by an attractive appearance of some of their parts (flowers, fruits, etc.). It also includes a statistical analysis of the incidence of poisonous plants in gardens of nursery schools and the awareness of educational supervision. The conclusions of the investigation indicates that in gardens of nursery schools are often found large quantities of various dangerous plants containing toxic substances and children use for their games some parts of such plants. Although the evaluation of the actual toxicity of the plants is very difficult, there's no space for underestimating this danger and it is appropriate that teachers recognize poisonous plants. Toxic plant substances have high biological activity in low doses. This work should serve as a basis for creating material for purposes of public health surveillance in schools and school facilities and manuals directly for the needs of schools, because gardens of nursery schools are due to young age, intellectual capacity and a high number of children the riskiest place for the possibility of poisoning.

The comparison of digital terrain model sources in GIS for hydrological purposes
Klempíř, Hynek ; Bašta, Petr (advisor) ; Gdulová, Kateřina (referee)
This thesis deals with comparsion of digital terrain models from different sources processed in GIS for hydrological purposes. The diploma thesis is composed from several parts. First part sis consist of characteristics related to watershed and water flow, which are important for the understanding this work. The thesis also describes digitial terrain model, his creation and methods for obtainig digitial models. Then, there are described data sources from which is possible to gain digitial models. Next chapter is dedicated to the coordinate system. The last parts of this thesis describes drain alghorithms. Characteristic of this area was collected on experimental watershed Modrava II with the ESRI ArcGIS Desktop software that would mainly Spatial Analyst and ArcHydro extensions. The results of this diploma thesis can be concluded that the free digital terrain model SRTM 90 is not suitable for small regions with diverse terrain structure. Thereason is a small resolution model. Other terrain models provided free of chargé are sufficient even for small areas as the selected area of interest. Paid digitial models can al lbe established for the area of interest as appropriate.

Determination of different forms of casein in milk
Kaňková, Veronika ; Hejtmánková, Alena (advisor) ; Markéta, Markéta (referee)
Casein proteins are important escpecially for cheese making. In addition to technology and other factors, casein concentration in milk and relative representation of individual casein fractions influence cheese yield. Majority fractions are alfa-casein, beta-casein and kappa-casein. For the determination of proteins in the milk can be used electrophoretic techniques or near infra-red spektrometry. High performance liquid chromatography (HPLC) is going to be used. HPLC is widely used analytical method, which is based on differential affinity of the substances to the mobile and the stationary phase. The thesis has introduced the method of determining the casein fractions by HPLC. The method was partially optimized using cow milk and calibrated to the standard solutions, which were purchased casein fractions derived from the bovine milk. Real samples of cow, sheep and goat milk were analyzed. The goat milk was available in several variants: Sanski goat milk and white shorthair goat from domestic or farm breeding. All milk samples were analyzed for casein and casein fractions proportions. Chromatograms show that the casein formula is different in cow, sheep and goat milk. Different concentrations of the casein fraction in the milk of various animal species have been statistically detected in almost all cases. The exception was the concentration of beta-casein in the milk of white shorthair goat from the domestic and the farm breeding and cow milk. In these types of milk there was no statistically significant difference in the concentration of beta-casein. Analysis of individual samples of white shorthair goat milk from the farm breeding shown that casein content in the milk of different animals reared under the same conditions may be different. Ratios of beta-casein to alfa-casein, beta-casein to kappa-casein and alfa-casein to kappa-casein were evaluated in all samples. Interspecific comparisons proved that ratios were statistically significantly different in all milks. In the milk of Sanski goat, there was found the stable ratio of beta-casein to alfa-casein during lactation. For all goat milk there were typical higher values of the ratio of beta-casein to kappa-casein. The ratio of alfa-casein to kappa-casein was highest in the sheep milk. Despite some shortcomings, it is possible to use the HPLC method possible for these purposes, but it is necessary to continue with its optimization.

Animal Species Diversity on Prehistoric Rock Paintings
Sjahrirová, Nicole ; Hejcmanová, Pavla (advisor) ; Sýkorovský, Dalibor (referee)
The term rock art represents prehistoric, historic and present images, which are being created on the rocks or on the free stone panels. It constitutes important historic heritage to people. The meaning of the rock paintings is mostly spiritual or it is somehow connected with hunters and gatherers. The dating of the rock art is very difficult and it is almost not possible to determine the specific year of creation. The oldest rock art was created by the people in the prehistoric Stone Age. Rock paintings were discovered all around the world. I focused on rock paintings with zoomorphic motives on the American continent, especially in North America and Mexico. The main purpose of this work was to describe animal species diversity on prehistoric rock paintings, especially focused on the life with wild animals and the beginning of agriculture in North America and Mexico. I created the database based on specialised articles that contains fifty various rock paintings with zoomorphic motifs. The database contains 25 different localities, primarily from the western USA. I identified 12 different species of animals in these paintings, the most numerous animal was the mountain sheep also known as the bighorn sheep (Ovis canadensis), which had a big meaning for Indian culture in America. I processed all the data from the database and calculated the Shannon index. The value of the Shannon index was 1,5478, which means that the diversity of animals in North America and Mexico in these 50 processed paintings was determined as low. The Shannon index was also computed for each single region from the database. In the discussion I focused on bighorn sheep and its population in history and then I focused on the meaning and beneficial effect of the wild sheep for the prehistoric native people.