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Analysis of flower scents Clusia blattophila
Mitrovský, Ondřej ; Kalinová, Blanka (advisor) ; Vaníčková, Lucie (referee)
South American plant Clusia blattophila, growing on Nouraghes of French Guiana, produces relatively large amounts of volatile substances in the fragrance of its flowers. C. blattophila is dioecious plant with different flowering time of monosex flowers Male flowers bloom for one night, while female flowers bloom two nights. The volatiles were adsorbed to the adsorbent and washed out with hexane with internal standard. Analysis was performed by two-dimensional gas chromatography with mass spectrometric detection. The aim of my thesis was to determine the qualitative and quantitative characteristics of flower scents of both sexes. I also studied, whether there are differences in production of the major fragrance component, acetoin, during the first night of blooming. The flower fragrance is complex blend of volatiles. In total, 43 different chemicals were identified. Among them were monoterpenes (α-pinene, camphene, β-pinene, myrcene, limonene, (E)-β-ocimene, camphor) sesquiterpenes (α-copaene, β-caryophyllene, cis-α-bergamotene, trans-α-bergamotene, aromadendrene, (E,E)-α-farnesene, δ-cadinene), aldehydes (1-pentanal, 1-hexanal, 1-octanal, n-decanal), also four ketones (acetoin and its dimer, 2,5-hexanedione, 6-methylhept-5-en-2-one), alcohol butane-2,3-diol, carboxylic acid 2-methylpropanoic,...
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Geographic Information Systems in the field of environment and nature protection
Zrzavecká, Lada ; Bravený, Libor (advisor) ; Vaníčková, Lucie (referee)
The bachelor thesis summarize and refer to importance and effective using Geographic Information Systems in the field of environment and nature protection. The first and second chapter summarize historical development, main terms and principles of these systems to handle the problem. The third chapter deals with using GIS in the field of environment and presents examples and analysis of services and technologies in nature protection. The fourth chapter presents work with software and own concrete examples and definite possibilities. The final fifth chapter summarize and evaluates obtained results and outlines further possible development. [Authors' abstract].
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Role of forest in water regime and local climate
Vaníčková, Lucie ; Pokorný, Jan (advisor) ; Šímová, Irena (referee)
Nowadays human society is dealing with comparatively essential problems, such as lack of water and chmate changes. Forests are able to use a great amount of solar radiation efficiently to change liquid water to water steam alongside climate cooling down. Scientists Makarieva and Gorshkov made up a theory which claims that forests are also generators of air humidity. The process is absolutely necessary for replenshing fresh water on land. This theory is based on gradient of pressures among different places. Air flows from places with lover evaporation and higher pressure (ocean) to locations with higher evaporation and lower pressure (forest). In this thesis are described basic mechanisms of theory of biotic pump. Simultaneously there are stated several examples of deforestation, which resulted in significant reduction of precipitation in that area and reduction of accessibility of water for human society. There are also mentioned several examples of attempt to revitalize desertificated area, where the effort is to make cultural landscape to imitate natural vegetation. These projects are primary based on retaining rainwater.
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Analysis of flower scents Clusia blattophila
Mitrovský, Ondřej ; Kalinová, Blanka (advisor) ; Vaníčková, Lucie (referee)
South American plant Clusia blattophila, growing on Nouraghes of French Guiana, produces relatively large amounts of volatile substances in the fragrance of its flowers. C. blattophila is dioecious plant with different flowering time of monosex flowers Male flowers bloom for one night, while female flowers bloom two nights. The volatiles were adsorbed to the adsorbent and washed out with hexane with internal standard. Analysis was performed by two-dimensional gas chromatography with mass spectrometric detection. The aim of my thesis was to determine the qualitative and quantitative characteristics of flower scents of both sexes. I also studied, whether there are differences in production of the major fragrance component, acetoin, during the first night of blooming. The flower fragrance is complex blend of volatiles. In total, 43 different chemicals were identified. Among them were monoterpenes (α-pinene, camphene, β-pinene, myrcene, limonene, (E)-β-ocimene, camphor) sesquiterpenes (α-copaene, β-caryophyllene, cis-α-bergamotene, trans-α-bergamotene, aromadendrene, (E,E)-α-farnesene, δ-cadinene), aldehydes (1-pentanal, 1-hexanal, 1-octanal, n-decanal), also four ketones (acetoin and its dimer, 2,5-hexanedione, 6-methylhept-5-en-2-one), alcohol butane-2,3-diol, carboxylic acid 2-methylpropanoic,...
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Geographic Information Systems in the field of environment and nature protection
Zrzavecká, Lada ; Bravený, Libor (advisor) ; Vaníčková, Lucie (referee)
The bachelor thesis summarize and refer to importance and effective using Geographic Information Systems in the field of environment and nature protection. The first and second chapter summarize historical development, main terms and principles of these systems to handle the problem. The third chapter deals with using GIS in the field of environment and presents examples and analysis of services and technologies in nature protection. The fourth chapter presents work with software and own concrete examples and definite possibilities. The final fifth chapter summarize and evaluates obtained results and outlines further possible development. [Authors' abstract].
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Accounting shared services centers and their performance evaluation
Vaníčková, Lucie ; Mejzlík, Ladislav (advisor) ; Skálová, Jana (referee)
This diploma thesis focuses on the area of outsourcing and shared services centers. It includes general characteristics of outsourcing. It deals in addition with definition and description of koncept shared services, its history, advantages, disadvantages, comparison with similar organization models and strategic aspects of this concept. Part of thesis focuses on audit in area of shared services center. This thesis deals with issues of performance management of accounting shared services centers in areas of accounts payable and accounts receivable in the USA, Czech Republic and Slovakia. The practical part of this thesis is established on mentioned theoretical themes. There is described and evaluated situation in specific accounting shared services center in the Czech Republic from view of performance and maturity of shared services center.
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Vegetable production accounting
Vaníčková, Lucie ; Dvořáková, Dana (advisor)
The bachelor thesis focuses on vegetable production accounting. The thesis is divided into two parts - a theoretical and practical one. In the theoretical part we deal with a classification of biological assets in vegetable production, their assessing and bookkeeping in the Czech Republic. The IAS 41 - Agriculture is explicated in a separate chapter. The practical part of this bachelor thesis concentrates on the application of knowledge mentioned in the theoretical part. We analyse practices of a specific farming business in the Czech Republic.
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