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Mythology of Reflex magazine cover pages
Vondrák, Jan ; Jirák, Jan (advisor) ; Šoltys, Otakar (referee)
This diploma work examines a product from the field of print media - front pages of magazine Reflex. Method of mythological analysis is used, which has been in qualitative research of media content applied for half of a century and is considered to be one of the traditional methods used by media studies. Unlike other dissertations in this thematic area this work does not only analyze visual or lexical contents of cover pages, but also focuses on participation of those contents in the development of myth. The work begins with introduction of key theoretical background and resulting terms used in following analyzes describing effects of myths in individual covers. Then the summary brings the interpretation and explanation of described phenomena. The work focuses to decipher myths contained in the first message which the Reflex magazine week after week addresses to his readers -the title page of individual issues. It analyses how the magazine constructs a system of myths, by which ideology can impact on its readers. Aim of this dissertation is not only to describe the process by which the myths capture a variety of signs and fill them with their own meanings, but also a dialectical relationship between myths and stereotypes or ideologies which stand in their background.
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Mollusc grazing and secondary metabolites of lichens
Černajová, Ivana ; Svoboda, David (advisor) ; Vondrák, Jan (referee)
In contrast to the much that is known about herbivory and its consequences, lichenovory has seldom been studied. Recently, studies confirming the anti-feedant role of lichen secondary metabolites were brought out and hypotheses considering the nature of these interactions were introduced. Also, a few papers dealing with the ecological consequences of lichenovory were published lately. My thesis was aimed on the secondary metabolites issue and the preferences of the lichen feeders in the natural conditions. Six epiphytic lichen species containing secondary compounds (Parmelia sulcata, P. saxatilis, Parmelina tiliacea, Melanelixia glabratula, M. subaurifera, M. glabra), two without them (Melanohalea exasperata, M. exasperatula) and two species of gastropods that naturally climb the trees to feed on lichens (Lehmannia marginata, Cochlodina cerata) were selected for grazing experiments. The deterring role of the lichen compounds was proven. These were also identified using thin-layer chromatography. Subsequently, a transplantation experiment was carried out. It was focused on specifying the preferences of lichen grazers in their natural habitat. The genus Melanohalea that does not contain any secondary metabolites was strongly prefered. No significant preferences among the other species used in the...
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Biogeography and specificity of Asterochloris photobionts
Řídká, Tereza ; Škaloud, Pavel (advisor) ; Vondrák, Jan (referee)
This diploma thesis has focused on the diversity and biogeography of Asterochloris photobionts. Since no study so far has been published on the biogeography of symbiotic microorganisms, the presented thesis is the first attemp to trace the biogeographic distribution and endemism of symbionts. By gathering 121 Asterochloris sequences obtained from lichen thalli sampled outside Europe and America, the diversity within the genus increased dramatically. The phylogenetic analysis based on the concatenated alignment of ITS rDNA and actin sequences obtained from Cladonia and Stereocaulon photobionts revealed 28 differently supported clades. Of them, eight lineages were newly discovered. Three environmental factors explaining the best the distribution pattern of Asterochloris photobionts were selected according to the statistical tests of the phylogenetic signal: two different types of biogeographical ecoregions and the substrate type. In general, the genus Asterochloris is distributed cosmopolitally, with a very low rate of endemism. Newly obtained data indicate that the restricted distribution of any photobiont clade is not caused by either historic or biological factors, but more likely by specific climatic or habitat preferences.
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Epiphytic species of Lecanora subfusca group in the Czech Republic
Malíček, Jiří ; Vondrák, Jan (referee) ; Palice, Zdeněk (advisor)
The main aim of this bachelor work is to summarize knowledges on species of the Lecanora subfusca group growing in the Czech Republic, eventually taxa their occurence may be expected in our area. Only epiphytic and/or epixylic species are included in this study because of a large diversity of the group. Ten taxa have been published from the country. This group is poorly explored in Central Europe because of difficult determination of single species. A comprehensive treatment is lacking in this area. For most taxa of this group only limited information on ecology, distribution, chemistry and taxonomic concepts exists. The present work is reviewing up-to-date knowledge of this group. Historical sources were based mainly on morphological and anatomical data. These were evaluated and excerpted. The bachelor work should serve as a basement for the following diploma thesis.
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Mergers of Companies for Tax Purposes
Janíková, Veronika ; Vondrák, Jan (referee) ; Polák, Michal (advisor)
Bachelor thesis focuses on the transformation of companies, namely the merger of parent and subsidiary companies. The parent company has a joint-stock company legislation and subsidiary companies with limited liability. Subsidiary on the effective date of the merger expires. The work is set out specific terms of the merger, which is further described. Included are all belongings mergers that preceded the merger, how the merger is going and how and when it was passed.
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Technology of CNC milling
Vondrák, Jan ; Kalivoda, Milan (referee) ; Osička, Karel (advisor)
Common possibility analysis on milling machine, analysis possibility for programming in workshop oriented milling in system Sinumerik 840D ShopMill. Project alternative manufacturing technology including creation NC programme and technical economic valuation for part of Suspension globular screw in axis X.
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