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Diversity and phylogeny of the lacertid lizards (Lacertidae) with emphasis on the tribe Eremiadini
Hlaváč, Denis ; Šmíd, Jiří (advisor) ; Chmelař, Jan (referee)
The family Lacertidae (lizards) belongs to the class Reptilia (reptiles) and the order Squamata (scaly reptiles). This family consists of two subfamilies, Lacertinae and Gallotinae, which are diversified into 45 genera and approximately 368 species. The subfamily Lacertinae is divided into two tribes, namely the tribus Eremiadini and Lacertini. The tribe Lacertini can be further divided into two clades: the Ethiopian and the Saharan-Eurasian clade. The subfamily Lacertinae, with approximately 354 species, is much larger than the subfamily Gallotinae, which consists of only 14 species. From the subfamily Lacertinae, the larger tribus Eremiadini is formed by 215 species classified in 22 genera. Representatives of this family can be found in Europe, Africa and Asia, but the center of origin is Europe. They belong to the dominant species of herpetofauna in Europe. The Eremiadini tribe separated from the rest of the Lacertidae family in the past and migrated to Africa, where it diversified into its present form. Currently, the diversity of the Eremiadini tribe is concentrated in Africa, but a large number of species also occur in Asia. The body is small to medium in size, which usually does not exceed 90 mm without the tail. The body shape is slender and the tail is relatively long compared to the body...
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Preparation and characterization of fluoride conversion coating on magnesium material
Šmíd, Jakub ; Doskočil, Leoš (referee) ; Březina, Matěj (advisor)
This thesis deals with the preparation of fluoride conversion coating on magnesium material. The effect of the coating time on the formation of the coating was investigated and the corrosion resistance of the resulting coatings was measured. The theoretical part is focused on magnesium and its alloys, powder metallurgy, corrosion and protection against it. Furthermore, conversion coatings, especially fluoride coatings, and their applications are discussed. The review section focuses on the current state of research in the field of fluoride conversion coatings. The experimental part describes the procedures of sample preparation and coating formation. The effect of time on the formation of the coating is investigated by monitoring the microstructure, mainly by elemental analysis of the surface of the samples in the section. Furthermore, the corrosion resistance of the samples is measured by potentiodynamic polarization in NaCl solution.
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Prevalence of Atrial Fibrillation as a Risk Factor in Patients after Circulatory Arrest for Ventricular Fibrillation
Šmíd, Jiří ; Vančura, Vlastimil (advisor) ; Mayer, Otto (referee) ; Skalická, Hana (referee)
Atrial fibrillation is the most common arrhythmia occurring in the adult population. Sudden cardiac death is one of the most common causes of cardiovascular death, accounting for up to 50% of all cardiovascular deaths. A number of trials have investigated the association between atrial fibrillation and other heart diseases, including sudden cardiac death. Atrial fibrillation is increasing in prevalence and incidence in the population and is associated with higher morbidity and mortality in patients. The pathophysiological mechanisms in atrial fibrillation are very complex and are linked to a number of other diseases. With these diseases they may share a common background and may interact together. A higher incidence of atrial fibrillation is described especially in patients with coronary artery disease, heart failure, and arterial hypertension. Increased mortality or higher incidence of ventricular arrhythmias, including ventricular fibrillation, has been described in studies in ICD carriers, but also in the general population, where atrial fibrillation has been shown to be an independent risk factor associated with up to a 3-fold increased risk of AF. This paper want to provide a comprehensive picture of the relationship between atrial fibrillation and sudden cardiac death. It provides information...
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Evolutionary dynamics of the genus Hemidactylusekkonidae) in space and time
Janák, Vojtěch ; Šmíd, Jiří (advisor) ; Rehák, Ivan (referee)
Hemidactylus is one of the most succesful groups within the infraorder Gekkota of squamate reptiles. With more than 180 species it represents the second most species-rich gekkotan genus. In last decades it has been the subject of a rather intensive research, which provided great insight into it's phylogeny, inner structure, range, biogeography and taxonomy. The number of described species has more than doubled in the same timespan. Despite this increase of knowledge as well as it's evolutionary success, which make the Hemidactylus genus a good model for study of diversification and evolution, there has been no in depth study conducted regarding these topics. This thesis constitutes an attempt at such a study of the phylogeny and evolution of the genus, it's history, dispersal and diversification dynamics, based on more complete species sampling than has been used in any study so far.
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Evolution of vipers and the role of key innovations in their diversification
Waldhauser, Vojtěch ; Šmíd, Jiří (advisor) ; Gvoždík, Václav (referee)
The family Viperidae consists of 36 genera, containing more than 350 species in total. The family is distributed throughout Africa and most of Eurasia, however the greatest diversity is located in North and South America, where more than 40 % of the viper species can be found. The family is thus missing only in Australia, New Guinea, Madagascar, New Zealand and a number of other islands and archipelagos. As with most reptiles, they are also almost completely absent from polar regions, with the exception of Vipera berus, the only snake that has ventured north of the Arctic Circle. Their relative evolutionary success is attributed to many so called "key innovations", which include solenoglyphous dentition, viviparity of many genera or heat- sensing pits in the subfamily Crotalinae. Vipers are not only interesting because of their evolutionary history, but they are also subject of important medical studies regarding their venom and toxicity. WHO estimates that around 100,000 people worldwide may die from snake bites each year. This thesis presents a summary of our current knowledge of the evolutionary history of this family, including phylogeny and biogeography, and contemplates the mechanisms behind its amazing diversity.
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Paraphrase classical artwork - a didactic transformation and application of topics in art education
Košatová, Barbora ; Šmíd, Jan (advisor) ; Sedlák, Michal (referee)
IN ENGLISH This thesis has the character of theoretical studies on the topic paraphrase a classic work of art and its subsequent didactic applications for that grade school. It solves the problems of paraphrasing in the visual arts. It characterizes the aspects related to the topic, such as analysis and structure of a work of art. It focuses on the theory of shape as the basic building blocks of artwork and associated topics, which are: quotes, interpretation, image transformations and alterations. Art work is a continuation of a previous bachelor thesis, which dealt with the issue of land. It deals with the transformation of the original image resulting from the help of manipulation of individual shapes in the image, replacing the existing design to a new one. They are created in the form of the photographs from the area of pre-defined landscape Didactic section applies subject paraphrase the selected school and verifies and theoretical knowledge in practice. It depicts the topic paraphrase as a whole. The objective is to try and understand the basic principles that apply to paraphrase.
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Agent optimization by means of genetic programming
Šmíd, Jakub ; Neruda, Roman (advisor) ; Kazík, Ondřej (referee)
This thesis deals with a problem of choosing the most suitable agent for a new data mining task not yet seen by the agents. The metric is proposed on the data mining tasks space, and based on this metric similar tasks are identified. This set is advanced as an input to a program evolved by means of genetic programming. The program estimates agents performance on the new task from both the time and error point of view. A JADE agent is implemented which provides an interface allowing other agents to obtain estimation results in real time.
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Space and spatial plans
Jíra, Jindřich ; Šmíd, Jan (advisor) ; Arbanová, Linda (referee)
Work sight: Theoretical studie s on the understanding of space as a place and use of personal and episodic protection of person s Subject: transformation the teoretical study to the practical use of space Intention: create a coprehensive view ofthe concept of space - in which we live, move, work and perceive. Bringing the work in the area for personal protection of persons and episodic protection, with a focus on education and training staff of the Presidential Protection Unit. View space use and spatial plans in the representation interiors and exteriors of Prague Castle and Lany Chateau. Contribution, knowlegde: focus on the bodyguards, who daily work in the open space Key words: space, representational spaces, spatial plans, Prague Castle, Lany Chateau, hall, salon, architect, president, Presidential Protection Unit, bodyguard (agents), protected person (CHa), Commander of Security Events (VBA), vehicle, personal protection, epizodic protection, shift supervisor (VS).
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