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Melissococcus plutonius causing European foulbrood
Navrátilová, Blanka ; Hubert, Jan (advisor) ; Titěra, Dalibor (referee)
European foulbrood is a bacterial disease attacking honey bee larvae worldwide. It is caused by bacterium Melissococcus plutonius, which is a non-spore-forming, Gram positive, anaerobic bacterium. The adult bees are not affected but serve as a vector of the disease as they carry the bacterium within their own bodies and can travel big distances from their hive and also may interact with other hives especially when their own colony is suffering. Once the bacterium is introduced into the colony, it either remains benign and unnoticed for years, keeping its population low, or it can multiply vigorously within the brood and destroy the entire bee populations. Despite having been described many decades ago, M. plutonius as such along with its virulence remain poorly understood and therefore there is no treatment efficient enough that would keep this bacterium along with the disease under control. Hence it is of a great importance to recognize its presence soon enough to prevent the outbreak. This thesis brings together the knowledge we have so far about this mysterious bacterium and sums up how European foulbrood is being treated all around the world.
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The Role of African American Women in the Civil Rights Movement in Missississippi in the 1960s: Fannie Lou Hamer
Navrátilová, Barbora ; Sehnálková, Jana (advisor) ; Kýrová, Lucie (referee)
The bachelor's thesis "The Role of African American Women in the Civil Rights Movement in Mississippi in the 1960s: Fannie Lou Hamer" deals with the status of African American women in the early 1960s, when the ideas of the Civil Rights Movement started to slowly penetrate the isolated state of Mississippi. The study uses the biographical method as a probe into this closed society. The object of this probe is Fannie Lou Hamer, one of the local activists who despite racist attacks and gender and class discrimination demonstrated her courage and leadership skills and became the spokesperson not only of the Mississippi Free Democratic Party, but also of the Civil Rights Movement itself. The case study on Fannie Lou Hamer examines how African American women were involved in the Civil Rights Movement and what obstacles they had to overcome as activists on a daily basis. The first part of the thesis focuses generally on the early waves of activism in Mississippi and on the tactics that local leaders used to mobilize local African Americans. Besides the analysis of the role of African American women in grassroots activities, the thesis also addresses the racial, gender and class discrimination. The second chapter examines the impact of these obstacles on one African American woman - Fannie Lou Hamer....
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Applications of sparse data representations
Navrátilová, Barbora ; Veselý, Vítězslav (referee) ; Rajmic, Pavel (advisor)
The goal of this thesis is to demonstrate practical application of sparse data representation in the processing of sparse signals. For solving several example problems - denoising, dequantization, and sparse signal decomposition - convex optimization was used. The solutions were implemented in the Matlab environment. For each of the problems, there are two solutions - one for one-dimensional, and one for two-dimensional signal.
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