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Possible use of doppler flowmetry in the detection of discordant growth of twins
Musilová, Ivana ; Rešlová, Taťána (advisor) ; Měchurová, Alena (referee) ; Ľubušký, Marek (referee)
Objective: To evaluate the efficiency of selected doppler parameters as a test for the prediction of twin growth discordancy (GD) and to compare it with the efficiency of routinely used ultrasound biometrical parameters. Design: Prospective clinical study. Methods: Set was formed by 63 twin pregancies. Intertwin differences in Doppler parameters (umbilical artery - AU, middle cerebral artery - MCA, cerebroplacental ratio - CPR) and biometrical parameters (biparietal diameter - BPD, abdominal circumference - AC, femur length - FL, estimated fetal weight - EFW) were studied. Simultaneously, uterine arteries impedance was assessed. GD was identified by the birth weight difference from 20%. The efficiency of intertwin differences in studied parameters were evaluated using ROC analysis. Results: Biometrical measurements performed within three weeks antepartum were in prediction of GD more accurate than doppler parameters (AUC for EFW 0.99; for AU 0.56; for CPR 0.71). Three to six weeks antepartum, the efficiency of biometrical and doppler parameters was comparable (AUC for EFW 0.79; for AU 0.81; for CPR 0.81). In interval more than six weeks antepartum, biometrical parameters were not effective, DG was predictable only using CPR (AUC for EFW 0.62; for AU 0.56; for CPR 0.77). No significant differences...
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Nutrition education for parents of preschool children
MUSILOVÁ, Iveta
This Bachelor's Thesis is focused on parent's education in a field of preschool children diet. There are two main aims. First and main aim is to find out how well are parent's informed about children diet. Second aim was to contact parent's and ask if they would be interested in courses, which would teach them about right dietary habits. A practical aim was to organize a special course focused on improving a parent's knowledge about healthy children diet. Discovered information can be subsequently used and improve a general knowledge about healthy children diet. Therefore it can have an positive effect on preschool children's diet. The main investigating question was set as follows: "How to educate parents in a field of children diet with highest efficiency?" Other researching questions are following: "How was organized a parent's education courses about a children's diet so far?", "How well informed are parent's so far? " and "How is a parent's interest regarding educational courses about healthy dietary habits in preschool children?" Theoretical part of Bachelor's Thesis is focused on right diet of preschool children and their parent's education in this field. There is a short description of preschool age group and its characteristic features. Main category summaries dietary problems, daily fluid intake, importance of proteins, fat, saccharides, vitamins, minerals and micronutrients. Another topic, which is discussed,is dietary recommendations, which are completed in healthy thirteen by Dietary Association. It improves an orientation in basic rules of healthy diet. I was also interested in healthy risks, which are connected with unhealthy diet in children. First of all I was focused on children obesity, because there is an alarming increase in a rate of an obese children nowadays. My research was focused on causes of obesity, prevention, treatment and consequences. Another subsequent results of improper diet are malnutrition, food allergies and dehydration. In a second category of theoretical part I investigated how is anparent's education in an area of healthy, proper diet of preschool children. I described education as a concept, learning process and its phases. In the investigation part of this thesis was used a method of qualitative research, which was divided into three main parts. In the first part was used a structured interview. It was composed of 7 questions based on parent's knowledge in an area of healthy diet of preschool children. First plan was to ask 10 respondents, however at 8th interview was research formula fulfilled. According to result of 9th interview was clear that another interviews would not enrich the research with new or valuable information. Therefore interviews were finished. In the second phase were used information from interviews and an educational course focused on healthy diet in preschool children was organized. The course was composed of five lessons in total three were focused on parent's education, another lesson was focused on children themselves. Last meeting was based on cooperation of parents and children in an activities connected with diet. The third phase was focused on a realisation of courses mentioned before. Effectiveness of course was checked with help of subsequent structural interview with four questions about changes, which occurredafter attending the education course mentioned before. One of the questions was also asking if the parent's are interested in another education courses and more information about children diet.
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PROGRESSIVE PRODUCTION PROCESSES AND SIMULATION OF STRUCTURES AND PROPERTIES OF SPHEROIDAL GRAPHITE CAST IRON
Musilová, Iveta ; Mores, Antonín (referee) ; Pacal, Bohumil (referee) ; Šenberger, Jaroslav (advisor)
The thesis is concerned with relationships between progressive technological processes of spheroidal graphite cast iron’s production and their structural properties. The aim of the work is to explain causal relationship between parameters of the proposed manufacturing technology of the iron type given (involving selected variants of modification and inoculation of melt and the parameters of melt crystallization, solidification and cooling down in a mould), their structure and even chemical heterogeneity of elements in this structure. For close specification of presented relationships three-dimensional model of spheroidal graphite growth was used, which was developed at the Brno University of Technology, Faculty of Mechanical Engineering. Its usability in praxis has been verified on the basisis of the application of this model on experimentally acquired data. The U GRAFIT 20 model of the authors Stránský and Million counting segregation in the frame of eutectic cell has not still been used for prediction of segregation in real condition in greater extent. On the basis of the above mentioned model microsegregation within “on average” of the cell has been discovered during experimental melts. Microsegregation has been described by segregation and heterogeneity indexes. Calculated values of segregation and heterogeneity indexes have been compared with experimentally verified values. On the basis of comparison of calculated and measured values the possibility of further usage of the mentioned model in praxis has been explored.
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Analysis of the company Ochrana 360° their Internet campaign on social medium Facebook
Musilová, Iveta ; Novák, Michal (advisor) ; Kincl, Tomáš (referee)
The aim of this bachelor thesis is to give an analysis of the Facebook ad-targeting used by the company Ochrana 360°. A part of the thesis will focus on evaluating the marketing of Ochrana 360°, this will go over both Internet marketing and the marketing on the social network Facebook. (The evaluation is only for the company mentioned before, Ochrana 360°, and does not serve as a guide for similar companies.) Theoretical part of the thesis will describe segmentation and targeting, marketing communication on the Internet, targeting of online advertising and social media. The conclusion of the theoretical part will focus on Facebook ad-targeting. The practical part will discuss the company and this will contain an analysis of their website and an analysis of their marketing on the social network Facebook. The focus of this part will be the description of ad-targeting and advertisement campaigns on Facebook created by the company Ochrana 360°.
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Nízkocyklová únava tvárné litiny s 2,8 % niklu
Tesařová, H. ; Petrenec, Martin ; Pacal, B. ; Musilová, I.
Cast ductile iron with the ferritic matrix alloying with 2.8% Ni was subjected to cycling with constant strain amplitudes and the cyclic stress-strain response and fatigue life were studied experimentally. The original microstructure is documented using light microscope. Fracture surface was studied using scanning electron microscopy. Manson-Coffin and Basquin laws can reasonably approximate the fatigue life data. Fatigue crack initiation from shrinkage cavity is documented.
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