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Extremophilic microorganisms
Procházková, Lenka ; Vítová, Eva (referee) ; Babák, Libor (advisor)
This bachelor’s thesis deals with the extremophilic microorganisms. There is described extreme environment in which these microorganisms occur, as well as several structural and chemical adaptations to the environment. In most cases, adaptation to extreme environment requires changes in the composition of membrane lipids, nucleic acids and proteins. Enzymes with stability in extreme environment are used in chemical, food, pharmaceutical and textile industry. There is also mentioned the application of extremophiles in the biodegradation of organic materials. This bachelor’s thesis is mainly focused on hyperthermophilic microorganisms, which have been most researched.
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Concept of thermal envelope of habitat for extreme environments
Kučera, Jan ; Charvát, Pavel (referee) ; Katolický, Jaroslav (advisor)
Various types of stationary and mobile habitats for extreme environments are described in this bachelor thesis. Description is focused on structure of heat envelope and its thermal resistance. The thermal envelope with influence of thermal bridges with the way to calculate and quantify this phenomenon and its influence on thermal loss by heat transfer is described in second part of this thesis. In third and last part of this thesis is designed deployable habitat for which is calculated thermal loss by heat transfer. After calculating heat loss, the panel joints are analysed in Therm software for calculating linear thermal transmittance of its detail. After all the thermal loss by heat transfer with influence of thermal bridges is count and compared with loss without thermal bridges.
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The diversity of algae from red snow in Europe: combination of molecular and morphological data
Křížková, Heda ; Nedbalová, Linda (advisor) ; Šabacká, Marie (referee)
We can find a lot of microorganisms living in snow including psychrophilic snow algae from the order Chlamydomonadales (Chlorophyta). They are adapted to the extreme conditions in this habitat and can cause the phenomenon of coloured snow. The species Chlamydomonas nivalis (Bauer) Wille is the most commonly associated with red snow in alpine and polar regions during summer season worldwide. In the field material, we can find red spherical cells without flagella and any morphological characteristics suitable for species determination. Until now, this species has not been isolated into laboratory culture and its life cycle is unclear. Furthermore it has been shown that red coloured snow can be caused by more species which used to be determined as Chlamydomonas nivalis. The aim of this study was to collect samples of red snow from different parts of Europe, to describe the morphological variability of Chlamydomonas nivalis-like snow algae in relation to region of origin, to try to isolate laboratory strain of this species and to describe its position and distribution by phylogenetic analysis of laboratory strains and field samples. Red snow samples were collected from 30 European localities in Slovenian Alps, Romania, Dolomites, Ötztal, Wallis and Sarntal Alps, High Tauern, Ortler massif, in Norway,...
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Concept of thermal envelope of habitat for extreme environments
Kučera, Jan ; Charvát, Pavel (referee) ; Katolický, Jaroslav (advisor)
Various types of stationary and mobile habitats for extreme environments are described in this bachelor thesis. Description is focused on structure of heat envelope and its thermal resistance. The thermal envelope with influence of thermal bridges with the way to calculate and quantify this phenomenon and its influence on thermal loss by heat transfer is described in second part of this thesis. In third and last part of this thesis is designed deployable habitat for which is calculated thermal loss by heat transfer. After calculating heat loss, the panel joints are analysed in Therm software for calculating linear thermal transmittance of its detail. After all the thermal loss by heat transfer with influence of thermal bridges is count and compared with loss without thermal bridges.
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Extremophilic microorganisms
Procházková, Lenka ; Vítová, Eva (referee) ; Babák, Libor (advisor)
This bachelor’s thesis deals with the extremophilic microorganisms. There is described extreme environment in which these microorganisms occur, as well as several structural and chemical adaptations to the environment. In most cases, adaptation to extreme environment requires changes in the composition of membrane lipids, nucleic acids and proteins. Enzymes with stability in extreme environment are used in chemical, food, pharmaceutical and textile industry. There is also mentioned the application of extremophiles in the biodegradation of organic materials. This bachelor’s thesis is mainly focused on hyperthermophilic microorganisms, which have been most researched.
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