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An analysis of student solutions of mathematical tasks as a preparation for posing tasks in the Concept Cartoon format.
ZELENKOVÁ, Jana
The thesis is focused on the written exam of maths of 6th grade pupils at the lower secondary school. The aim of this work is to analyze solutions of pupils as preparation for creating tasks in the Concept Cartoons. In the theoretical part of the thesis I deal with approaches to teaching maths, learning styles of pupils, their strategies in solving not only mathematical problems. Then I describe mathematical word problems, the Concept Cartoons, their origin, division and creation. In the practical part of the thesis I devote to specific works of pupils and analyze their solutions, both correct and incorrect. This part of the work serves as a preparation for the creation of completely new tasks Concept Cartoons. Everything is complemented by examples of pupils work.
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Correlation between the onset of beadless character of nanofibrous webs and rheological characteristics of electrospun polymer solutions
Zelenková, Jana ; Peer, Petra ; Filip, Petr
An overwhelming majority of applications of nanofibrous webs requires sufficiently smooth character of nanofibres surface. This character is apart other parameters strongly influenced by a concentration of chosen polymeric material in the solvents. Qualitative attributes roughly depend on the prepared concentration, specifically whether it belongs to one of the four basic regions: dilute, semidilute unentangled, semidilute entangled and concentrated. A concentration separating the latter two regions is often taken as a zero-th approximation indicating an onset of beadless nanofibrous webs. The present contribution uses as a more precise indicator behaviour of so-called phase angle relating viscous and elastic moduli, in other words mutual participation of viscous and elastic components. To this aim three frequently used polymers were used: copolymer of poly(vinylidene fluoride) and hexafluoropropylene (PVDF-co-HFP), poly(ethylene oxide) (PEO) and poly(vinyl butyral) (PVB). For materials exhibiting first a constant behaviour or moderate decrease in a phase angle for lower concentrations, an approximation of the starting concentration is given by a concentration value where a phase angle curve starts to decrease, apparently reflecting a more progressive viscoelastic nature. As shown, such approximation provides relatively very good approximation enabling to eliminate a traditional trial-and-error method.
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Fears of pupils in biology
Zelenková, Jana ; Havlová, Michaela (advisor) ; Blažová, Kateřina (referee)
The diploma thesis deals with an emotional state called fear and it's pathological form - phobia. The thesis is focused on frequency and form of fears of pupils in older school age and on influence of these fears on teaching of Natural Sciences. The analysis of educational field of Natural Sciences, the interview and the questionnaire investigation of pupils were used in the diploma thesis. On the basis of research results I suggested basic recommendations for teachers who meet pupils with fear or specific phobia during classes. The diploma thesis uses methods of qualitative and quantitative research.
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Antibacterial electrospun membrane prepared from poly(vinylidene fluoride)-co-hexafluoropropylene with lauric acid monoacylglycerol
Zelenková, Jana ; Peer, Petra ; Pleva, P. ; Janalíková, M. ; Sedlaříková, J. ; Filip, Petr
The aim of this study was to prepare an antibacterial nanofibrous membrane using electrospinning technique. The nanofibrous membranes were spun from polymer solution of poly(vinylidne fluoride)-co-hexafluoropropylene (PVDF-co-HFP) dissolved in N,N´-dimethylformamide. Monoacylglycerol of lauric acid (MAG C12) was used as an antimicrobial agent at the concentrations ranging from 1 to 3 wt%. The impact of MAG C12 incorporation on the rheological, structural and antibacterial properties was investigated. The rheological tests of polymer solutions, as steady shear and oscillatory shear, proved that addition of MAG C12 changed marginally rheological quantities such as viscosity, elastic (storage) and viscous (loss) moduli. Measurement of mean nanofibres diameter indicated a slight decrease with increasing MAG C12 concentration. Antimicrobial activity of PVDF-co-HFP nanofibre membranes with incorporated MAG C12 against Gram-positive bacteria Staphylococcus aureus and Gram-negative Escherichia coli was studied. An antibacterial activity was revealed for the samples containing MAG C12 at all concentrations against Gram-positive bacteria Staphylococcus aureus by the disk diffusion method.
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Mathematical books in public libraries
ZELENKOVÁ, Jana
Bachelor thesis is focused on the occurrence of mathematical books in municipal libraries, especially in the town library Horní Planá, which is located in the place of my residence. In the theoretical part of the thesis I deal with the genesis of municipal libraries and their general functioning, which is based on the library laws of the Czech Republic. Furthermore, I devote to genesis of the town library in Horní Planá and its current form. Then I describe the methodological instructions of the municipal libraries described in the library standards, which published the National Library of the Czech Republic. I also describe the differences in the management of the library collections of municipal libraries in the past and today, especially the differences in the paper and digital form of library catalogs. In the second part I devote to the already mentioned mathematical books and books are popularized mathematics. I focus mainly on their occurrence in city libraries and on ways to borrow this book. On this work I compile a list of mathematical books available in the town library Horní Planá. This list is then supplemented by a collection of selected examples from available books.
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Possibilities of Physical Exercise in School- Age Patients with Cystic Fibrosis
Štefanová, Petra ; Zelenková, Jana (advisor) ; Smolíková, Libuše (referee)
Cystic fibrosis belongs to the most common fatal genetic diseases of Caucasians. The treatment of cystic fibrosis symptoms is a complex system and its integral parts are methods of respiratory physiotherapy. Therapeutic approach helps clients to live even more than 40 years at the present time. Clients living with chronic diseases were discouraged from physical load in the past. But now, we know these patients benefit from regular physical activity. This thesis is divided into 2 parts - theoretic and practical. Theoretic research summarizes possibilities of testing the children patients with cystic fibrosis in relation to physical condition and also contains the latest information about already studied training programmes of this specific group. Practical part of this thesis is consist of a young client case study, suffering from the cystic fibrosis. This client underwent a physical examination and implemented designed 10- weeks training program thereafter.
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Possible evaluations of respiratory parameters in physiotherapy using Multiple Breath Washout
Richtrová, Eva ; Zelenková, Jana (advisor) ; Koucký, Václav (referee)
The thesis presents a new method called Multiple Breath Washout (MBW) and its use in the assessment of breathing parameters in physiotherapy. The MBW evaluates respiratory parameters based on the washout of inert gas from the lungs and is applicable to all age categories. The theoretical part briefly summarizes the findings about the respiratory system and the types of functional lung examination, where spirometry is described and the larger part is devoted to less known method of Multiple Breath Washout. In the practical part, a preliminary study is carried out on two patients diagnosed with cystic fibrosis. The patients were examined and measured before and after a thirty minutes physiotherapy. The effect was measured by both methods - spirometry and Multiple Breath Washout. The aim of this thesis is to evaluate of short-term effect of physiotherapy on patients with chronic respiratory diseases.
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