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Analysis and implementation of application for digital currency Bitcoin
DRDÁK, František
The thesis is focused on the topic of virtual cryptocurrency Bitcoin. The theoretical part is divided into several chapters. First of all, there is a chapter containing basic information about the currency's history, its development to the present, as well as principles of operation of this currency. Because it is a currency based on cryptographic principles next chapter summarizing cryptographic techniques, which is necessary to know for subsequent analysis of this currency. In other parts is elaborated a detailed analysis of the principles of Bitcoin. The main point of this analysis is a system of transactions, decentralized history, then joining the transactions into blocks and in the end creating blockchain. It also explains the principle of P2P networks. The practical part of this work focuses on the analysis and design of payment applications for mobile devices. There used open-source libraries such BitcoinJ. The application is developed in Java programming language with plugin for portable devices, which work under the operating system Android. For the purposes of analysis and design of graphical user interface is used UML diagrams. The specification of the UML diagrams was utilized by freely available graphics software and the result is also included in this work.
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Species diversity of Plagiorchis Lühe, 1899 (Digenea: Plagiorchiidae) in lymnaeid snails from freshwater ecosystems in central Europe revealed by molecules and morphology
ROHÁČOVÁ, Jana
This study applies molecular and morphological approaches addressing the identification of morphologically similar larval stages (cercariae) of Plagiorchis spp. (Digenea: Plagiorchiidae) parasitising lymnaeid snail populations in the freshwater ecosystems of central Europe. Five morphologically homogeneous and genetically distinct lineages of Plagiorchis spp. were identified via matching molecular data for the mitochondrial cox1 gene with detailed morphometric data. Phylogenetic and comparative sequence analyses using partial 28S rDNA and ITS1-5.8S-ITS2 sequences allowed molecular identification of three species (P. elegans, P. maculosus and P. koreanus) via matching sequences from larval and adult digenean stages. A key for the identification of the cercariae of Plagiorchis spp. parasitising lymnaeid populations in central Europe is provided.
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Molecular and morphological characterisation of species of \kur{Plagiorchis} Lühe, 1899 (Digenea: Plagiorchiidae) in lymnaeid snails from freshwater ecosystems in central Europe
ROHÁČOVÁ, Jana
This study applies molecular and morphological approaches addressing the identification of morphologically similar larval stages (cercariae) of Plagiorchis spp. (Digenea: Plagiorchiidae) parasitising lymnaeid snail populations in the freshwater ecosystems of central Europe. Five morphologically homogeneous and genetically distinct lineages of Plagiorchis spp. were identified via matching molecular data for the mitochondrial cox1 gene with detailed morphometric data. Phylogenetic and comparative sequence analyses using partial 28S rDNA and ITS1-5.8S-ITS2 sequences allowed molecular identification of three species (P. elegans, P. maculosus and P. koreanus) via matching sequences from larval and adult digenean stages. A key for the identification of the cercariae of Plagiorchis spp. parasitising lymnaeid populations in central Europe is provided.
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History of the keys to the crown jewels: Study 5.302
Valenta, Petr
Dlouhá historie klíčů, které uzamykají dveře do korunní síně ve svatováclavské kapli katedrály sv. Víta, se bezprostředně odvíjí od vlastních osudů českých korunovačních klenotů. Uložení korunovačních klenotů a s ním spojené okázalé obřady měly odpovídat hodnotě a symbolickému významu, který je klenotům přisuzován…
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The key to determining the boid snakes of the subfamily Erycinae for the needs of the ČIŽP.
ŽÍDEK, Jakub
Snakes of the subfamily Erycinae belong to family Boidae. Erycinae are spread to the North America, North Africa and Asia. Due to their attractive appearance and small size are interesting business article. Every species of this subfamily is subject of CITES agreement. This work contains collected data from imports of subfamily Erycinae to the Czech Republic and EU and contains data from trade websites ifauna.cz and terraristik.com. Finally comprehensive key was made for all 15 species of subfamily Erycinae which was verified by inexpert public and all deficits were corrected.
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Catalogue of aquatic hemipterans of family Pleidae (Hemiptera: Heteroptera: Nepomorpha): biology, list of species, distribution, key.
ŠVEHLA, Jiří
Aquatic hemipterans of the family Pleidae (Hemiptera: Heteroptera: Nepomorpha) represent a not very well explored group of water insect. Pleidae (Pygmy backswimmers) are tiny (1 ? 3 mm) hemipterans living mostly on the submerged vegetation of lentic water systems. The family is cosmopolitan, but the only species we can find in the Czech Republic is Plea minutissima, which is the most researched one(together with Neoplea striola). This family consists of 33 valid species divided into four generas ? Plea Leach, 1817, Neoplea Esaki a China, 1928, Paraplea Esaki a China, 1928 and Heteroplea Cook, 2011 according to the recent status of knowledge. This thesis is the very first attempt to create a complete catalogue of species in this family. It deals with a list of species, species distribution and key to the genera and species of Pleidae. The list of literature represents bibliography of family.
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Key to boiinae snakes for The Czech Environmental Inspectorate.
VÖRÖS, Jan
Species of Boinae are of a great interest among breeders, wheter it?s due to their size, attractive colour patters or the way they hunt their prey. However, some species are endemic, threatened by the habitat loss or other causes and therefore they are subject to the CITES or they are placed on the IUCN Red List. In the last 20 years there have been numerous changes in the taxonomy of all families. New species were discovered, many were also lifted from the level of subspecies to the species level. This work focuses on 34 species of the subfamily Boinae, summarizes the hitherto published data and determination characters. It also contains data collected from web advertising sites iFauna and Terraristik, which is used to form images of the species traded in the Czech Reublic respectively neighboring Germany. Finaly the work includes a comprehensive key to all 34 snakes species complemented by illustrations.
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Taxonomy of selected groups of the genus \kur{Caloplaca}
ŠOUN, Jaroslav
The thesis deals with phylogeny, taxonomy and nomenclature of selected groups of the lichen genus Caloplaca. Particularly, the C. cerina group was closely investigated using molecular methods (ITS sequences), morphology and chemistry, based on material from Europe, and to some extent also from North America and western Asia. This approach resulted in the description of three new species (C. sterilis, C. subalpina, C. thracopontica), and detected an unexpected richness of lineages. Nomenclature, taxonomy, morphology and ecology of C. aurantia and C. flavescens from the C. aurantia group were studied in detail, including selection of the neotype of the former species. Their distribution was reviewed for the territory of the Czech Republic. Poorly known taxon C. aurantiomurorum from Algeria was lectotypified and synonymized with C. aurantia. Apart from the two groups, C. phlogina and C. scythica, differing partly in thallus colour and distinctly in distribution, were examined using both molecular (ITS sequences) and phenotypic data and found to be conspecific.
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Electronic signature for emails subscribing
Rychetský, Filip ; Toman, Prokop (advisor) ; Brechlerová, Dagmar (referee)
Práce se zabývá využitím elektronického podpisu k podepisování emailových zpráv a to přehlednou a jasnou formou s praktickými příklady. Zahrnuje obecnou charakteristiku elektronického podpisu jako takového, věnuje se kryptografickým základům, aby čtenář věděl, jakými metodami a principy je podpis zajištěn, a konkrétními možnostmi podepisování s důrazem na jednu variantu. Tato podrobněji popsaná varianta je konfrontována s dalšími možnostmi, zejména v oblasti výhod a nedostatků.
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