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Offer of the Construction Company to Public Tender
Benešová, Karolina ; Bartoš, Miroslav (referee) ; Waldhans, Miloš (advisor)
The subject of the diploma thesis "Offer of the building company in a public tender" is to find out, how construction companies provide public contracts, how the public contracts process works in different companies, how individual companies create tender documentation in a public tender, and subsequently describe the creation of tender documentation to public competitions.
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Monitoring of vitamin E content in the samples of cereals
Cibulcová, Pavla ; Borkovcová,, Ivana (referee) ; Benešová, Karolína (advisor)
Thesis deals with the analysis of vitamin E in cereal samples, namely barley and wheat and malt produced from them. Selected samples were treated with low-temperature plasma, fungicide and biological treatment to elimination fungus and mycotoxins. The aim of the thesis was to find out the influence of the treatment, the combination of several types of treatment on vitamin E content in grain and malt. If the content of health-positive substances is not reduced and grain can be used for food, malt, or for feed purposes. The theoretical part focuses on the properties, occurrence, biochemistry and importance of vitamin E for living organisms. It also focuses on the properties of cereals that are a significant source of vitamin E. Malt production and sample treatment are also described. The experimental part describes the field experiment, individual types of treatment, extraction of vitamin E from the samples and determination of vitamin E content by high performance liquid chromatography with fluorescence detection. The results are compared with the current literature. It was found that the treatment did not have a significant negative effect on vitamin E content.
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Monitoring of organic acid content in alcoholic drinks
Ostrihoňová, Katarína ; Běláková, Sylvie (referee) ; Benešová, Karolína (advisor)
The aim of the thesis is determination and optimization of organic acids in beers using the methods of capillary isotachophoresis (CITP) and high performance liquid chromatography with diode array detection (HPLC/UV). Beer is a complicated matrix therefore the samples need pretreatment using solid phase extraction (SPE). The diploma thesis discusses the optimization of the analytical methods (HPLC/UV and CITP) and optimization of SPE. In the theoretical part, history, characterization and technology of beer production are presented. Further, characteristics of organic acids and methods for organic acid determination are also discussed. The experimental part deals with the preparation of solutions, tested samples, calibration samples. Parameters and procedures of analytical methods (HPLC/UV and CITP) and pretreatment using the solid phase extraction are also described in the experimental part. All results are summarized and compared with the current literature in discussion and conclusion. Eleven beer samples from the retail stores were analyzed. In all samples, six organic acids (lactic, oxalic, succinic, acetic, citric, benzoic) were determined by CITP and five organic acids (lactic, oxalic, succinic, acetic, citric) by HPLC/UV were determined. Results of this study give an overview of the organic acid contents in beer samples.
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Rental Housing
Benešová, Karolina ; Hort, Eva (referee) ; Hrabincová, Dagmar (advisor)
The aim of the bachelor thesis is description of renting apartment, demarcation of basic concepts regarding this issue. Work has mainly specialized in the analysis and description of the rental housing and its accessibility for the population and the concept of social housing , applied in the Czech Republic. The aim of the work is an analysis of rental housing in the city Czech Cieszyn. In my work I have tried to summarize how you can increase the availability of housing and amenities. I tried to assess the situation on the housing market , especially rental housing and the concept of social housing in the Czech Republic. To analyze the state of housing fund in the Czech Cieszyn , I used the materials published by the municipality , housing cooperatives , churches and real estate companies . For an analysis of pricing conditions of the lease , I used data provided real estate brokers and data obtained from the survey.
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Determination of residues of the selected pesticide effective substances in wine using the GC/MS method
Ehrenbergerová, Martina ; Benešová, Karolína (referee) ; Mikulíková, Renata (advisor)
The grape is one of the oldest cultivated plants. It can be consumed as a fruit or it can be used as a raw material for making stews, juices or the cultivated drink – wine. Generations of wine-makers have been striving to improve both the cultivating conditions of vineyards and the quality of wine. Many harmful elements, such as herbivorous pests, diseases and storms are important factors that can have a negative impact on crop quality. To regulate the effects of these factors, an integrated protection system is used, incorporating agronomical measures, resistant varieties and a wide spectrum of pesticides. However, increasing the usage of pesticides brings certain dangers to both the production quality and the environment. This necessitates the monitoring of the negative effects, including the content of pesticide residues in the grapes. My thesis studies and experimentally assesses selected pesticide residues in certain wine samples.
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Introducing of method of pyridoxine determination by liquid chromatography in food products and resources
Nechyba, Ondřej ; Benešová, Karolína (referee) ; Vespalcová, Milena (advisor)
This master‘s thesis deals with quantification of vitamin B6 in beverages, food supplements and raw materials in food industry. The literature retrieval part summarizes general information about vitamines, vitamine B6, nicotine acid and vitamine B1. Further on in this part there is described principle of high pressure liquid chromatography and quantification of individual vitamines. In the experimental there are listed used tools, apparatus and chemicals. There is described preparation of idividual samples of food supplements, energy drinks, multivitamine drinks, beers and brewer’s malts. This chapter also contains information about chromatographic separatory systems Shimadzu and SpectraSystem. The quantification was performed by high pressure liquid chromatography on a reverse phase with gradient elution and two ways of detection, fluorescent and spectrofotmetric. The result of experimental activities and vitamine content in analysed samples are presented in the next chapter. In the final contains summarization of results obtained in experimental part. The maser’s thesis was measured in the laboratory of Institute of Food Science and Biotechnology, Faculty of Chemistry, Brno University of Technology.
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Determination of ergosterol content in brewing materials
Matyáš, Martin ; Ing.Pavla Kožušníková, Ph.D. (referee) ; Benešová, Karolína (advisor)
Presented bachelor’s thesis is focused on determination of ergosterol content in barley and malt. In theoretical part the presence of ergosterol in barley and malt has been elaborated, the purposes of its determination, detailed overview of previously applied methods of extraction from samples of barley and malt as well as other biological materials and methods of quantification. Practical part is focused on optimizing of extraction and determination of ergosterol by high performance liquid chromatography with diode array detection (HPLC – DAD).
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Developing musical competences of children in pre-school age
BENEŠOVÁ, Karolina
The paper is concerned with the way of developing the musical competences of children in pre-school age. It has been divided into four chapters. The first one summarizes the general development of a child in its pre-school age. The second chapter explains the function of vocal body organs which participate in creating voice. In the third chapter I deal with the development of positive habits of children, when they are singing. These habits shall be taught in a pleasant and attractive way, thus in each section the reader will find some practical examples of simple exercises. These exercises should make the learning of basic competences, necessary for a healthy singing, pleasant and attractive. In the last chapter the reader will find instructions, how to use simple rhythmic instruments while working with children in a music lesson.
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Sampling of persistent organic compounds using SPMDs: Advantages and disadvantages
Čáslavský, Josef ; Kotlaříková, Pavla ; Benešová, Karolína ; Doškářová, Š. ; Hamrusová, M.
Passive sampling methods gain more and more popularity for the sampling of persistent organic pollutants in the environment, including air. These passive samplers are substantially cheaper than standard active sampling methods, their deployment is simpler, they don't need electricity, thus they can be deployed even in very distant regions. They offer an itegrative response, therefore these samplers are especially suitable for monitoriong purposes. For quantitative evaluation it is necessary to establish the values of sampling rates for individual compounds. In the presented study these values for polycyclic aromatic hydrocarbons were evaluated from the comparison of the results of passive sampling using SPMDs and standard active sampling method.
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