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Changes in body weight during the life of women
VELKOVÁ, Eva
The bachelor thesis summarizes basic information about the changes of body weight throughout the woman´s life and dedicates to their issues. It deals with risk periods during the life of women related to body weight changes and presents the current scientific findings and recommendations in this area. In this work, two objectives were set. The first objective was to detect changes in a body weight during a woman's life, another objective was to determine how women are informed about changes in their body weight. The theoretical part describes the changes in the body weight at different stages of the life of women. Here, it deals principally with the increasing body weight and the related need to achieve and maintain an optimal weight. It also describes the recommended energy and biological value of food in the various essential periods of women, which has some influence on their body weight. It also deals with the principles of a proper diet and lifestyle. In particular, it focuses on the main elements, namely: the adequacy of energy intake with respect to the need and expenditure, the distribution of food in different parts of the day, an exercise, prevention of stress and getting enough sleep. In the practical part there are presented results of the research focused on the issue outlined above. The research, carried out in a questionnaire form, is dedicated to the body weight at different critical periods, the analyzing somatometric data, eating habits after the onset of menopause and awareness of this issue by women of the South-Bohemian region. It results from the results of the work that women changed their weight after menopause as compared with their previous weight. By contrast, the research shows that women did not change their eating habits in this critical period at all. The research also shows that women do not have enough information on the justness to keep their body weight, not to increase the weight after menopause. The research further shows that women have no information on the principles of the healthy diet in the period after postmenopausal.
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Physical Load Analysis In Woman's Beach Volleyball
Maciolková, Hana ; Vorálek, Rostislav (advisor) ; Buchtel, Jaroslav (referee)
Title: Physical Load Analysis In Woman's Beach Volleyball Objectives: The objective is to examine time characteristics, cardiac strain, movement pattern and the individua! volleyball skills in woman playing beach volleyball. The results will help aid athletes and coaches to improve individua} and team performance in the sport. Methods: Analyses of the thirteen game records were used to compile data for statistical time measurements, movement pattems and individua! volleyball skill. Through the use of sport testers, four individua} athletes in four separate toumaments had their heart rates recorded. These heart rates were further analyzed to collect the appropriate data for cardiac strain characteristics. Results: The average game time was 37 minutes with 5 - 9 seconds exercise loads and 15 seconds recovery time. Beach volleyball is high to middle level intensity game with mixed aerobic- anaerobic energy supply system in use. The average heart rate falls in the interval of 150 and 180. The jumping load is about 41 and more jumps counting serve jump, block and spike. The prevalent movement distance is within 4 meter range. The results also shows that the blocking player is under large physical stress while changing repeteadly position between defence on the net and in the field. Keywords: Beach...
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Propagation of inclined cracks to the interface of ceramic laminates
Novotná, Lenka ; Trunec, Martin (referee) ; Chlup, Zdeněk (advisor)
Composite materials with laminated structure provide advantages which are utilised during component design. Low density, temperature and chemical stability are the profitable properties predetermining application of ceramic laminates. The main obstacle for wide spread of ceramic materials is their inherent brittleness. Therefore, in this thesis, the crack propagation in ceramics laminates has been extensively studied. Laminated structures with various volume fractions of components (alumina and zirconia) were prepared by electrophoretic deposition. Evaluation of crack propagation through the interface and determination of basic mechanical properties was conducted on the basis of extensive literature search. Crack deflection originated in both presence of internal stresses and differences in elastic modulus during the crack interface passing was monitored. A special type of specimen geometry was employed with the aim to set arbitrary angle between crack and interface. It was experimentally found that the degree of crack deflection is dependent on entering angle and volume fraction of components. Higher crack deflection was already found in the bulk of the test piece comparing to the test piece surface. The 3D fracture surface reconstruction generated using laser confocal microscopy was used in this detailed crack propagation study. Further basic elastic and strength characteristics of laminates were determined and compared to those obtained from monolithic materials. The validity of the mix rule for elastic characteristics was confirmed by comparing of elastics modulus. The most reliable method for elastic modulus determination was marked the dynamic resonance method due to low scatter and consistency in measurement. The flexural strength of all laminates tends to be close to the flexural strength of the weakest component. Therefore the mix rule is not applicable for flexural strength estimation on the contrary of elastic characteristics. The change of component volume fraction leads only to change of flexural strength scatter. Thanks to gained knowledge about crack propagation and basic characteristic determination will be possible to design ceramic laminates more efficiently for given needs of application.
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Analysis and modification of thin layers using ion beams
Jonner, Jakub ; Lörinčík, Jan (referee) ; Bábor, Petr (advisor)
This diploma thesis deals with analysis and modification of thin layers using ion beams. The first part of this diploma thesis deals with phenomena accompanying ion beam bombardment of solid matter. The second part of this diploma thesis is concerned with Secondary Ion Mass Spectroscopy (SIMS) and Low Energy Ion Scattering (LAIS). This work convey some basic information about these two techniques and it also deals with some benefits result in their connection into parallel depth profiling mode (such as better depth resolution of the LEIS profile, quantification of the SIMS). These benefits are demonstrated on MoSi film measurement. Within the framework of this thesis a new UHV manipulator was designed. This new UHV manipulator is equipped with precise stepper UHV motor and since the proportions are smaller, the manipulation with a sample in a space limited UHV chamber is much more comfortable and more precise. The third part of this diploma thesis deals with ion-beam induced transformation of epitaxially grown Fe films with thickness of 22 monolayer (ML) and 44 ML on Cu(100) single crystal at room temperature. Metastable Fe films of 22 ML thickness were prepared in CO pressure and 44 ML Fe films were prepared by co-evaporation of Fe with Fe64Ni36 (invar). Structural changes are analyzed by scanning tunneling microscopy and low-energy electron diffraction. The aim of this thesis is to discuss the influence of the sputtering parameters such as ion dose and ion energy on the nucleation of bcc nanocrystals, their growth, final shape and size. The influence of different Ni concentration on stability of 44 ML thick Fe films is also discussed.
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Collection and analysis of data from four voltage probes, SP-47 in the gallery Josef at Mokrsko within the the project MPO FR-TI3/325
Staš, Lubomír ; Souček, Kamil ; Nohejl, Zdeněk ; Kaláb, Tomáš ; Rutar, Tomáš
Text, including tables, graphs and images is a comprehensive annual report to the Treaty on the work of 823/24/10 data collection and evaluation of 4 pieces voltage probes, SP-47 in the gallery Josef at Mokrsko. It contains the results of the evaluation of the measurements of voltage changes in test wells in the immediate vicinity of the borehole stress - thermal sources in solid exploration adit SP-47 in Josef. All measurements were obtained using a strain gauge measuring the conical heads, specially manufactured and installed here for this purpose. Measurements are carried out within the project MPO-TIP FR-TI 3/325 - The importance of the thermal load of rocks - perspectives underground storage of thermal energy.
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Effective dashboard design in the analytical tasks of IS
Janeczková, Agata ; Šedivá, Zuzana (advisor) ; Pour, Jan (referee)
The thesis deals with analysing and designing an effective dashboard. By way of introduction the topics of Business Intelligence, data storages and data quality are described. Then, an overview of analytical outputs is given and the process of their formation is outlined. The basic principles of an effective design of management reports are described, with emphasis laid on the end user. The thesis focuses on important factors of efficiency, such as applicability of transferred information and the form of their transfer. The practical part concentrates on the improvement of the efficiency of a particular dashboard. Besides the rules of a correct design, knowledge of cognitive psychology is also used for this purpose. Upon an analysis of deficiencies of an existing dashboard, proposed changes are incorporated. Changes resulting in more effective transfer of information via a dashboard are based on a theoretical basis of the previous section.
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Senzory pro ptačí chřipku
Krejčová, Ludmila
Mutation rate of influenza viruses is up to a hundred times higher, when compared to other viruses. Thanks to the speed of mutational changes, influenza is considered as the strongest member of the group of potential pandemics agents. In order to prevent the occurrence and spread of pandemic, which could have impact on worldwide population, we need methods for rapid detection of each subtype of influenza viruses. One of the most progressive way of detection of biomolecules are electrochemical sensors and biosensors. The aim of the thesis was to design sensors and biosensors for influenza virus detection, especially avian influenza H5N1, that are based on the isolation of two different parts of influenza virion using paramagnetic particles, coupled with subsequent electrochemical detection of isolated target molecules. We designed and optimized methods for isolation and detection of influenza antigen (hemagglutinin) and influenza nucleic acid (DNA oligonucleotide derived from genomic RNA of influenza). In both cases, quantum dots (QDs) were used as the label of target molecules for electrochemical detection. Two fast, sensitive and low-cost method for isolation and electrochemical detection by square-wave voltammetry and differential pulse voltammetry were applied.
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Ellipsometry of Thin Films
Novotný, Zbyněk ; Navrátil, Karel (referee) ; Nebojsa, Alois (advisor)
Diploma thesis deals with ageing process of thin films of Co and Cu on Si substrate, prepared by the IBAD method. The process of film ageing, which depends on time of exposition to the atmosphere at room conditions, was investigated with spectroscopic ellipsometry (VIS+UV) and atomic force microscopy. In case of thin Co films, approximately four days long incubation period was observed. During this time period, a change in the optical parameters of the film occurs without a measurable change of the film topography. Using non-contact atomic force microscopy, a growth of the transitional film in the island growth regime was observed. During the ageing of thin Cu films, two stages of growth of the transitional layer were observed - nucleation stage and growth stage. Both of these time periods of the transitional layer growth show direct logarithmic dependence. Using non-contact atomic force microscopy, the growth of the transitional film was observed. Using atomic force microscopy in non-contact regime, time dependent measurement was done and the process of forming of one monolayer of the transitional layer was documented. Within the diploma thesis, a series of experiments on ultra high vacuum system were performed in order to investigate phase transformation of thin Fe films (22 monolayers) on Cu(100) stabilized by CO absorption. The transformation from fcc phase to bcc phase was induced by Ar+ ion beam bombardment with the ion energy in the range (0.5-4) keV. The process of phase transformation was observed by surface magneto-optic Kerr effect, Auger electron spectroscopy and low energy electron diffraction.
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Hyaluronan ionocomplexes for cosmetic and farmaceutical applications
Cimalová, Jana ; Obruča, Stanislav (referee) ; Pekař, Miloslav (advisor)
This bachelor thesis is focused on the study of a system of cationic surfactant – hyaluronan. Using fluorescent spectroscopy the critical micellar concentration of Carbethopendecinium bromide (Septonex) was determined in three environments – water, 0,15 M NaCl, and buffer PBS, with three fluorescent probes – pyrene, perylene, and nile red. It was found that the physiological environments (buffer and NaCl) reduce the value of CMC about one order. During the experiments with native hyaluronan, precipitate and gel formation were observed. The following part dealt with aggregate behaviour of the new biologically acceptable amphoteric surfactant tetradecylfosfocholine (TPC) in the environment of water and NaCl according to the increasing molar molecular weight of hyaluronan. As a fluorescent probe perylene was used. These measurements showed that the molar molecular weight or a change of ionic force has no effect on the value of CMC and therefore there are no interactions with hyaluronan. The last surfactant to study was 1,2-dihexadecanoyl-3-dimetylammonium-propan (DPTAP), which is water insoluble. DPTAP is soluble in chloroform, but after evaporation of chloroform and after addition of hyaluronan, it precipitated. The results so far, have confirmed that in terms of research of aggregation by fluorescence spectroscopy the new cationic surfactants TPC and DPTAP are not suitable for complexation with hyaluronan.
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název v anglickém jazyce není uveden
Kolesová, Hana ; Grim, Miloš (advisor) ; Slípka, Jaroslav (referee) ; Nečas, Emanuel (referee)
Branchial arches region and its blood vessels are extensively transformed in the embryonic development. Aim of this study is to investigate mechanisms of the branchial arches region development and to study how a morphogen Sonic hed gehog (Shh) participate on the formation and remodeling of branchial arches and their blood vessels. Influence of Shh was evaluated based on the changes caused by its inhibition in vivo. Shh function was inhibited with an anti-Shh antibody, which was produced into the embryo from the applied hybridoma cells. Shh signaling cascade was also inhibited by cyclopamine. Results show that Shh is important for dc novo format,ion of the blood vessels in the branchial arches region. Further Shh is necessary for stabilization of the vessel wall, mainly for anterior cardinal vein. Shh also alfects later vessel development and transformation, which includes i.e. fusion of the dorsal aorta, branching of the internal carotid artery and outflow tract development. Short time inhibition of Shh has minor effect on the apoptosis and proliferation activity of the branchial arches region mesenchymal cells. We assume that Shh signals directly to the blood vessels endothelial cells, as Shh receptor ptel is also expressed in endothelial cells and its signal is reduced with Shh inhibition. In studied...
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