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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Analysis of methicillin resistant Staphylococcus aureus strains from Czech Republic and Slovakia
 Brajerová, Marie ; Tkadlec, Jan (advisor) ; Karpíšková, Renáta (referee)
Methicillin-resistant Staphylococcus aureus (MRSA) is a major nosocomial pathogen that has spread into the community since the 90s. In general, the community-associated (CA- MRSA) strains are more virulent, but less resistant to antimicrobials than the hospital- acquired strains (HA-MRSA). Some lineages of MRSA such as sequence type 8 have been transmitted more successfully around the world than others and there are situations where a dominant lineage has been replaced by a new one. The factors that are crucial for the selection of dominant lineage are often not clear. As part of this thesis, a longitudinal study of MRSA epidemiology in the Motol University Hospital during the period of 2018-2020 was performed and the occurrence of MRSA clonal complexes was characterized. A multicenter study of the epidemiological situation of MRSA in Slovakia during the period of January - April 2020 was also performed concomitantly. Moreover, several isolates from dominant lineages were further characterized by their phenotype. In the Motol University Hospital study, it was found that the HA-MRSA of the clonal complex 5 dominates and is represented mainly by spa-type t586; a finding that concurs with recent studies from the Czech Republic. In Slovakia, similar to the Czech Republic, MRSA lineages from clonal...
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Dispersal of clonal aquatic plants
 Rydlo, Jan ; Fér, Tomáš (advisor) ; Hroudová, Zdenka (referee)
The aim of this Bc. thesis is to summarize the knowledge on clonal dispersal of aquatic plants and to compare the possibilities and measure of clonal dispersal in selected most-studied species. In the first part of the study, ways of clonal propagation of water plants by various types of vegetative diaspores and various means of transport (by water, animals) are described. Ways and possibilities of dispersal of aquatic clonal plants in various water systems (river systems, stagnant waters) and to various distances are described as well. Finally, anthropogenic effects on clonal dispersal of water plants, which can also play an important role, are discussed. These effects could stay behind many invasive events on the Earth represented by rapid clonal reproduction and dispersal of some species of aquatic macrophytes in their non-native area. The next part of this thesis deals with methods to study the dispersal of aquatic clonal plants and assesses their relevance for various spatial scales. These methods and results of case studies are presented for the most often studied species of water macrophytes. Results of these studies are summarised to demonstrate the real efficiency and distances of clonal dispersal of aquatic plants. Powered by TCPDF (www.tcpdf.org)
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