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Experiments with Images of Eye Retina
Floryček, Jan ; Orság, Filip (referee) ; Fiala, Jiří (advisor)
The layout of blood vessels in human eye retina is one of the important physiological biometric characteristics of every individual. The processing of color retinal images and extraction of the blood vessel structure is an important phase in diagnostics of many eye diseases as well as in gathering biometric data. An automatic method for image processing, extracting the blood vessel structure and saving a template for usage in a biometric system will be described in this bachelor thesis. The method was developed and tested on actual retinal images acquired by digital fundus camera and it was implemented in language C++ with the use of OpenCV library. This thesis also contains a brief introduction to biometrics, computer graphics and medicine.
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Cardiovascular effects of silymarin
Ryzová, Leona ; Pourová, Jana (advisor) ; Vopršalová, Marie (referee)
1 ABSTRACT Charles University Faculty of Pharmacy in Hradec Králové Department of Pharmacology & Toxicology Student: Leona Ryzová Supervisor: PharmDr. Jana Pourová, Ph.D. Title of diploma thesis: Cardiovascular effects of silymarin Aim: The aim of the diploma thesis is to summarize the existing knowledge about the mixture of natural plant substances collectively referred to as silymarin and to map the results of the latest studies focusing on the cardiovascular effects of silymarin. Main findings: Available data suggest that silymarin has positive effects on the human body, including hepatoprotective, choleretic and cholagogic, neuroprotective, anticancer and antiviral, anti-inflammatory and positive effects on diabetes mellitus. Positive effects on the cardiovascular system include protective effects on the vascular endothelium, antioxidant effects, beneficial effects on blood lipids, regulation of blood aggregation and antidiabetic effects. Although the conclusions from cardiovascular studies are not always the same, most confirm the positive effect of silymarin on the cardiovascular system. A necessary part of future research will be the search for new dosage forms in order to increase the bioavailability of silymarin, which so far limits its clinical application. Conclusion: Silymarin is a mixture of...
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Nursing care of patient with peripheral vascular disease of lower extremities
Šoókyová, Bianka ; Kordulová, Pavla (advisor) ; Pucholtová, Romana (referee)
Introduction: I have chosen a topic Nursing care of the patient with peripheral vascular disease of lower extremities for my bachelor theses. I think that the chosen subject matter is very relevant, because the disease belongs into a group of cardiovascular diseases, which are still the main cause of mortality in CR, according to statistics ÚZIS Zemřelí 2016. In most cases, peripheral vascular disease of lower extremities is caused by atherosclerosis process, which is entailed with many risks factors (especially smoking, diabetes, hypertension). In theoretical part I introduce the issue of the peripheral vascular disease of lower extremities. I focus mainly on diagnosis, options for treatment and on prevention of the disease. The sources, that I have used for an elaboration of my theses, were obtained by research in National medical library. Searching was carried out in the databases NLK, PubMed, Embase, Medvik and CINAHL etc. I searched further through internet sources of professional organizations and companies, which deal with mentioned issue. Theses includes guidelines of professional organizations as ESVS - European Society for Vascular Surgery, ESC - European Society of Cardiology, SVN - Society of Vascular Nursing And National cardiovascular programme of Czech republic. Methods: To lay out...
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Vliv terapeuticky aktivních látek obsažených ve víně na cévní systém
Chvalinová, Klára
Vascular system diseases are annually a big problem throughout the world. They affect not only the elderly but also young and commonly healthy people. The issue of wine consumption in relation to these diseases has been amply researched several times, the aim of this work was to create a comprehensive overview of scientific research and experiments of this popular topic. The object of the study were scientific articles of scientists around the world and their research that dealt with the exploration of wine, especially wine contained ingredients that positively affect vascular system. The most of the clinical studies results confirm the positive effect of wine on a vascular system diseases, including prevention, formation and progression of the disease.
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Experiments with Images of Eye Retina
Floryček, Jan ; Orság, Filip (referee) ; Fiala, Jiří (advisor)
The layout of blood vessels in human eye retina is one of the important physiological biometric characteristics of every individual. The processing of color retinal images and extraction of the blood vessel structure is an important phase in diagnostics of many eye diseases as well as in gathering biometric data. An automatic method for image processing, extracting the blood vessel structure and saving a template for usage in a biometric system will be described in this bachelor thesis. The method was developed and tested on actual retinal images acquired by digital fundus camera and it was implemented in language C++ with the use of OpenCV library. This thesis also contains a brief introduction to biometrics, computer graphics and medicine.
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Určení maximálních toků vody v běli u sazenic dubu napadených patogenem Phytophtora plurivora na základě anatomických měření
Sedláčková, Veronika
Wasting and death of deciduous trees, including oaks, is among the most serious problems today. Since 2003, the decline of oak trees in the Czech republic, among others, has been associated with the pathogenic fungus Phytophtora plurivora causing serious damage to root systems, which can lead to insufficient transport of water to transpiring leaves. The thesis is partly built on my Bachelor's thesis and includes two experiments. The objective of the first experiment,based on anatomical investigations, was to determine a theoretical maximum flow of water in the sapwood in oak seedlings. The goal of the second experiment,based on the temperature of the leaves, was to find out the functionality of the root system infected by the fungus Phytophthora plurivora. If the root system works, the transpiration is not disrupted and the leaf is cooler. The results of the first experiment give us evidence that the seedlings infected by the fungus Phytophthora plurivora are of the lower hydraulic conductivity and the lower theoretical maximum flow of water in the sapwood. The oak seedlings inoculated by the fungus Phytophthora plurivora compared with the control seedlings had smaller area of the vessels lumina, maximum theoretical flow of water in the sapwood, theoretical hydraulic conductivity, number of the vessel elements, maximum and minimum diameter of the vessel elements. In contrast, the inoculated seedlings had greater specific hydraulic conductivity and specific flow of water in the sapwood. The disruption of the root system by the fungus Phytophthora was demonstrated by 1°C higher temperature in the inoculated seedlings leaves.
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