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Proposal of SQL Database for Manufacturing Company
Kreisinger, Jiří ; Šmýdová, Martina (referee) ; Kříž, Jiří (advisor)
This bachelor’s thesis describes the proposal of a database for a manufacturing company. That decided to replace its existing database which is in inadequate state. In the first part is the theoretical background of the problem. Next part is analysis of manufacturing processes which leads to requirements on database. At the end is my own database solution.
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Nest construction
Jenšovský, Václav ; Kreisinger, Jakub (advisor) ; Šulc, Michal (referee)
The nest is in the life of birds important structure. It's a place where kept for posterity during the entire period of reproduction. For this to be nest offspring suitable place for development, must have a specific structure which is variable for each species. Variability, whether at the level of intraspecific and interspecific level and is influenced by several factors. These factors include thermal insulation properties, antipredatory properties, further property to protect the nest before (ecto) parasites, but also can design nest pose as a selectable character sexually. Each of those factors differently closer together, but often one factor may disadvantage second and thus reduce the success of rearing offspring. Key words: nest construction, thermal insulation properties, antipredatory properties, ectoparasites, sexual selection
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Supplementations of the Mallard and their impact on wild populations
Pechmanová, Hana ; Musil, Petr (advisor) ; Kreisinger, Jakub (referee)
The Mallard (Anas platyrhynchos) is quite a popular game bird species. In many states, particularly in Europe and North America, captive-rearing and releasing of mallards has become common practice in wildlife management. The aim of these supplementations is to boost the size of hunted populations. More than three million Mallards are released each year. This paper aims to summarize and assess the potential effects of captivity-reared Mallards on the wild populations. Supplementations of mallards pose a threat to the genetic identity and variability of wild populations and may potentially lead to morphological and behavioral changes. Breeding facilities can be source of many pathogens, so supplementations may lead to transmission of these pathogens into wild populations. All the factors mentioned above may thus affect the fitness and population dynamics of wild Mallards. This paper also briefly considers how the releases can affect other species and the environment. This issue is not well studied so more studies and appropriate monitoring are needed for an assessment of the rate of these processes.
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Nest construction
Jenšovský, Václav ; Kreisinger, Jakub (advisor) ; Kratochvíl, Lukáš (referee)
The nest is in the life of birds important structure. It is a place where birds kept posterity throughout the period of reproduction. To make it nest offspring suitable place for development, must have a specific structure which is different for each type of variable. Variability, whether at the level of intraspecific and interspecific level and is influenced by several factors. These factors include thermal insulation properties, antipredatory properties, further property to protect the nest before (ecto) parasites, and also the construction of the nest in intraspecific communication as a selectable character sexually. All these factors are aligning differently, but often one factor may disadvantage second and thus reduce the success of rearing offspring. Key words: nest construction, thermal insulation properties, antipredatory properties, ectoparasites, sexual selection
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Ecological aspects affecting microbiota in the digestive tracts of birds
Schmiedová, Lucie ; Kreisinger, Jakub (advisor) ; Mrázek, Jakub (referee) ; Gvoždíková Javůrková, Veronika (referee)
The results indicate that songbird GM is dominated by the bacterial phyla Proteobacteria, Firmicutes, Actinobacteria, Tenericutes, Bacteroidetes and Chlamydia, a community that differs from that of mammals. A t the interspecies l evel, GM composition is mainly influenced by phylogeny and less so by sampling site. While ecological factors , and especially diet , are important GM predictors in mammals, the effect of ecological factors , including diet , have a much smaller effect on inte r - and intraspecific variability in songbird GM composition . Our data from barn swallows ( Hirundo rustica ) suggest an effect of social GM transmission among adults forming social pair s, as well as trans - generational transmission from a social mother to her own nestlings. At the same time, we observed differ ing GM in adults and nestlings, with no dramatic change in GM with nestling age, a process previously recognised in mammals. Part of the GM detected appears to remain stable over time , and is therefore su itable for further detailed study. To conclude, our studies demonstrate that s ongbird GM differs from that of mammals and that the factors influencing GM composition appear to differ from those in mammals , thereby highlighting the importance of study ing mu ltiple vertebrate groups (not just mammals ) when...
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Meaningfulness of Work in Platform Economy
Kreisinger, Jonáš ; Kobová, Ĺubica (advisor) ; Müller, Karel (referee)
In my thesis I deal with the concept of meaningful work in a platform economy. Meaningful work is a theoretical as well as a practical problem that exists across various fields of study. Meaningful work is increasingly important topic, which corresponds with actual problems that workers face in their workplace. The main goal of the thesis is to inquire if and how is this concept useful to describe the working conditions of emerging platform economy, which strengthens the class conflict at the workplace. I research this problem on the case of Viennese food delivery service Mjam with application of the method of the phenomenological analysis, which enabled me to study dailiness and experiencing of meaningfulness of work of the couriers. For the analysis, I conducted semi-structured interviews with the riders. Even though the couriers experience occasionally meaningfulness as well as meaninglessness at the workplace, the thesis shows that this concept is rather used to rephrase their crucial problems of the workplace. The researched literature partially ignores the real problems of workers in their workplace as well as the complexity and heterogeneity of the problem of meaningful work.
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Conservation genetics of grey wolf and snow leopard: effect of landscape attributes to the population structure
Benešová, Markéta ; Hulva, Pavel (advisor) ; Kreisinger, Jakub (referee)
Landscape genetic approaches allow to study effects of landscape to population microevolution. Landscape can influence gene flow even in large carnivores with good dispersal ability. Understanding the influence of landscape to the gene flow between populations is crucial for species conservation, especially in the species with low population densities. Aim of the study was to describe genetic structure of the grey wolf (Canis lupus) and snow leopard (Panthera uncia) in selected areas and to determine the influence of the landscape features on observed structure. Non-invasive genetic samples of snow leopard from Nepal were analysed, as well as invasive and non-invasive samples of grey wolf from Central Europe. Population structure was determined a posteriori using Bayesian clustering approaches that integrate genetic and geographical data, and compared to landscape connectivity models. Population structure of snow leopards is mostly influenced by human presence and presence of frequented roads, which represent a substantial dispersal barrier. Habitat suitable for this species is greatly restricted by altitude, however, during dispersal they are able to overcome areas with higher elevation than what is optimal for them. Pronounced genetic difference was found between central European and Carpathian...
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The role of gut microbiota and HPA axis in childhood
Trunečková, Naděžda ; Kaňková, Šárka (advisor) ; Kreisinger, Jakub (referee)
The microbiota-host relationship is a complex system of interactions, which has evolved over thousands of years. Colonization of the gastrointestinal tract begins in prenatal period, continues after birth, and can be disrupted by different factors like a mode of delivery, lactation, or antibiotics. Main development of the intestinal microbiota and the central nervous system takes place in the first two or three years of life. The microbiota and the brain can mutually influence their development. For the communication is used the microbiota-gut-brain axis, which includes the neural, endocrine, metabolic and immunological pathways. Exposure to stress, whether in the prenatal period or in the first few years of life, can have a negative impact on the composition of the intestinal microbiota and the developing brain, including areas associated with the regulation of the HPA axis - one of the main mechanisms of stress regulation, which includes all interactions between the hypothalamus, pituitary gland and adrenal glands. Dysregulation of the microbiota-gut-brain axis can affect our response to stress, cognitive function, and emotions. The modified HPA axis response can affect our physical and mental health. It is associated with immune system disorders, behavioural disorders, social integration...
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