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Study of transport processes using microrheological techniques in hydrogels
Píšová, Denisa ; Kráčalík, Milan (referee) ; Smilek, Jiří (advisor)
This diploma thesis is focused on the determintaion of viscoelastic properties of agarose hydrogels containing different polyelectrolytes by microrheological and macrorheological techniques. From microrheological techniques the dynamic light scattering was used. Firstly, the influence of different polyelectrolyte volume was studied. Then the effect of variously charged polyelectrolyte and ionic strenght on microrheological properties of agarose hydrogels were determined. Classic rheology was used to compare the results obtained using the DLS microrheology method. Finally, the results from macro- and microrheology were correlated with each other.
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DLS microrheology to study gelation of polymer
Píšová, Denisa ; Smilek, Jiří (referee) ; Hnyluchová, Zuzana (advisor)
This bachelor thesis deals with the study of gelation process on model polymer through DLS microrheology. As the model polymer was used agarose and for microrheological measurement were used polystyrene particles. Agarose samples of various mass concentrations were studied through dynamic light scattering. Measured data were used to create graphs of MSD against time which were compared to MSD curves and error bars. The values of diffusion coefficients for all samples and each temperature were also compared.
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Media education through the lens of the professional teaching community
Píšová, Denisa ; Jirák, Jan (advisor) ; Köpplová, Barbara (referee)
The aim of the thesis entitled Media Education through the lens of the professional teaching community is to identify the issues and topics that appear in the discourse on media education in the Czech Republic, especially from the perspective of teachers and experts dealing with this issue. Using theoretical foundations based primarily on the framework curricula and surveys from recent years and content analysis of online discussions under news articles, the state of media education in the Czech Republic will be investigated. These findings will be subsequently verified and questioned through in-depth interviews with stakeholders from the school and educational institutions environment. Thus, two qualitative methods will be used in the analytical part, which will increase the reliability of the research results. A secondary purpose of the research is the possibility of further testing the resulting hypotheses or questions, for example through a questionnaire survey. Thanks to in-depth interviews, it is also possible to gain a broader insight into the issues of contemporary media education, which has been the focus of few studies or surveys in the Czech Republic in recent years. This is also important because of the forthcoming revisions of the Framework Educational Programmes, which should improve...
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Study of transport processes using microrheological techniques in hydrogels
Píšová, Denisa ; Kráčalík, Milan (referee) ; Smilek, Jiří (advisor)
This diploma thesis is focused on the determintaion of viscoelastic properties of agarose hydrogels containing different polyelectrolytes by microrheological and macrorheological techniques. From microrheological techniques the dynamic light scattering was used. Firstly, the influence of different polyelectrolyte volume was studied. Then the effect of variously charged polyelectrolyte and ionic strenght on microrheological properties of agarose hydrogels were determined. Classic rheology was used to compare the results obtained using the DLS microrheology method. Finally, the results from macro- and microrheology were correlated with each other.
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DLS microrheology to study gelation of polymer
Píšová, Denisa ; Smilek, Jiří (referee) ; Hnyluchová, Zuzana (advisor)
This bachelor thesis deals with the study of gelation process on model polymer through DLS microrheology. As the model polymer was used agarose and for microrheological measurement were used polystyrene particles. Agarose samples of various mass concentrations were studied through dynamic light scattering. Measured data were used to create graphs of MSD against time which were compared to MSD curves and error bars. The values of diffusion coefficients for all samples and each temperature were also compared.
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