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Swarm Intelligence
Winklerová, Zdenka ; Šaloun, Petr (referee) ; Škrinárová,, Jarmila (referee) ; Zbořil, František (advisor)
The intention of the dissertation is the applied research of the collective ( group ) ( swarm ) intelligence . To demonstrate the applicability of the collective intelligence, the Particle Swarm Optimization ( PSO ) algorithm has been studied in which the problem of the collective intelligence is transferred to mathematical optimization in which the particle swarm searches for a global optimum within the defined problem space, and the searching is controlled according to the pre-defined objective function which represents the solved problem. A new search strategy has been designed and experimentally tested in which the particles continuously adjust their behaviour according to the characteristics of the problem space, and it has been experimentally discovered how the impact of the objective function representing a solved problem manifests itself in the behaviour of the particles. The results of the experiments with the proposed search strategy have been compared to the results of the experiments with the reference version of the PSO algorithm. Experiments have shown that the classical reference solution, where the only condition is a stable trajectory along which the particle moves in the problem space, and where the influence of a control objective function is ultimately eliminated, may fail, and that the dynamic stability of the trajectory of the particle itself is not an indicator of the searching ability nor the convergence of the algorithm to the true global solution of the solved problem. A search strategy solution has been proposed in which the PSO algorithm regulates its stability by continuous adjustment of the particles behaviour to the characteristics of the problem space. The proposed algorithm influenced the evolution of the searching of the problem space, so that the probability of the successful problem solution increased.
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Development in Consumer and Buying Behaviour
ŠACHTOVÁ, Barbora
The master thesis is focusing on development in consumer and buying behaviour in on-line grocery shopping. The first part characterizes the key concepts of this topic i.e. consumer, consumer behaviour, consumer behaviour´ models, buying behaviour, purchase decision process, e-business, e-commerce. The practical part of the thesis covers the analysis of quantitative marketing research results. The end is dedicated to suggestions and recommendations for services´ improvement of on-line grocery stores in the Czech Republic.
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Consumer Behaviour on The Smartphone Market
DVOŘÁČEK, Petr
The Main task of my thesis has been to make an analysis of consumer behaviour on the smartphone market. Segmentation of consumers was made based on the survey. I've chosen an enterprise, for which I've made recommendations based on the survey.
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Methodist School-Based Prevention and his Role in Practical Elementary School and Special Elementary School
HAVLÍČKOVÁ, Markéta
The diploma thesis focuses at a theme of Methodology of school prevention and its role at the specialised primary school. The theoretical part is split into four main chapters which refers to the education system of children with need of special educative care in the Czech Republic. It defines socially pathological aspects including risk behaviour with its prevention. The last chapter describes primary prevention at schools using a minimal preventive program and work of a methodologist of school prevention. The practical part contains a quality-type research based on semistructural interviews with methodologists of school prevention at chosen specialised primary schools. The first task of my diploma thesis is to find out what advise parents need and ask for the most. The other task is to find out what aspects a methodologist of school prevention has to take into consideration during issuing a minimal preventive program. The questions have been asked in the way to find out how cooperation at the level of prevention between parents and specialised primary school works, and who else among school staff except of a methodologist participates in the issuing a minimal prevention program. I have contacted sixteen specialised primary schools in the South Bohemia region for the interview. Ten have replied, but only six of them were willing to cooperate further. Two of the schools are located in the regional city, the other four are from smaller cities of similar sizes. Interviews were carried out with methodologists of school prevention and questions were focused at the cooperation at the level of prevention between parents and specialised primary school, and possible influence of location of the school which could be reflected in the minimal prevention program.
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Iniciace pohybu byčíku, signalizace a regulace pohyblivosti spermií ryb: fyzikální a biochemické řízení
PROKOPCHUK, Galina
The current study attempted to shed light on the regulatory processes and response arrangements of fish spermatozoa during the course of maturation and motility initiation. The first intent of this study was to improve the understanding of the mechanism underlying the acquisition of potential for sperm motility in sturgeon. Up to present work, the physiological process underlying sperm maturation in this species has not been described at all. Our results showed that sperm maturation in sturgeon occurs outside the testes because of dilution of sperm by urine and involves the participation of high molecular weight substances as well as calcium ions present in seminal fluid and/or urine. The second aim of the present study was to investigate the coping mechanisms in fish spermatozoa with osmotic and ionic activating mode, as well as in spermatozoa of euryhaline fishes, to various environmental conditions. We showed that alteration of environmental osmolality might affect the fish sperm in different ways, depending on fish species and modes of spermatozoa motility activation either osmotic or ionic mode. In response to osmotic stress caused by hypotonicity, carp spermatozoa regulated the flow of water across their cell membrane and increased their cytoplasmic volume during their short motility period. In contrast, no indications of sperm volume changes were observed neither in sterlet nor in brook trout spermatozoa, both of which having an ionic mode of motility activation. We also examined the mechanism by which sperm motility triggering in euryhaline fishes can adapt to a broad range of environmental salinity. Our results demonstrated that spermatozoa of euryhaline tilapia, Sarotherodon melanotheron heudelotii, reared in fresh-, sea- or hypersaline water can be activated in hypotonic, isotonic or hypertonic conditions of swimming milieu, provided Ca2+ ions are present at various levels. It was established that the higher the fish rearing salinity or the more hypertonic ambient media at spermatozoa activation, the higher extracellular concentration of Ca2+ ions is required. The results obtained in the present study allow suggesting that osmolality is not the main factor inhibiting sperm motility inside the testis in the S. melanotheron heudelotii. A third aim of this study was investigation of the regulation of motility initiation process and description of flagellar beating initiation in chondrostean spermatozoa. We detected that K+ inhibition of sperm motility in sturgeon can be by-passed due to the pre-exposure of sperm cells to a high osmolality shock prior to its transfer to K+-rich swimming media. Thus, we hypothesized that sturgeon spermatozoa may be activated by use of an unexpected signaling pathway, independent from regular ionic stimulation. The successive activation steps in sturgeon spermatozoa were investigated by high-speed video microscopy, using specific experimental situation, where sperm motility initiation was delayed in time up to several seconds. At motility initiation, the first couple of bends formed at the basal region begins to propagate towards the flagellar tip, but gradually fades when reaching the mid-flagellum. This behavior repeats several times until a stage where the amplitudes of bends gradually reach similar value, what eventually leads to sperm progressive displacement. The total period needed for the flagellum to switch from immobility with rigid shape to full activity with regular propagating bends ranges from 0.4 to 1.2 seconds. In conclusion, the results of the current study bring valuable pieces of information into the general understanding of the processes of maturation of fish spermatozoa, their adaptability to different physical and biochemical circumstances, the extra- and intra-cellular signaling as well as the regulatory mechanisms of motility activation in fish spermatozoa.
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Human behaviour in crisis situation
Dobrotková, Karolína ; Kebza, Vladimír (advisor) ; Bredárová, Kristina (referee)
Presented bachelor thesis pursues Human behaviour in critical situations. The focus is specifically aimed at the prosocial behaviour and the bystander effect. The theoretical part describes historical context of the bystander effect, experiments performed in laboratory conditions and factors causing the bystander effect. The first part of the thesis defines what the term crisis means, its causes, stages a solutions. There is also the term prosocial behaviour pursued. The practical part is based on questionnaire research's evaluation and verification of pre-established hypothesis. The results of questionnaire research are graphically represented by charts.
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Political aspects of local government – elections and voting behaviour of inhabitants of municipalities of Blovice city
Jan, Jaroslav ; Kopřiva, Radek (advisor)
Despite the transformation of party systems both at the national and sub-national political decision-making levels of politics, the hallmark of local political life of the municipality of Blovice city is a relative stability of the local party system. This fact is the basis of the Master thesis which aims to assess the nature of the electoral behavior of the local electorate in the elections to the municipal council with the ambition to evaluate the utility of the theory that is based on locally contextual interpretation. Partial objectives of the thesis that contribute to the main goal are the following: a description of the results of elections that are decisive for a development of the party system of Blovice city, a description of variables that underlie the permanent electoral support for the Civic Democratic Party (ODS) and the characteristics of electoral behavior of the local electorate. Thesis will be designed as a case study. A research will be based on voting decisions of electorate of Blovice city. The objects of the research will be the voters who participate in the elections to the municipal council and representatives of local politics and territorial autonomy. Value attitudes and voting behavior of voters will be assessed on the basis of data obtained by questionnaire. Electoral support of parties will be evaluated on the basis of data from unstructured interviews with local politicians (especially those from the party ODS). A local political life and in particular the election results will be described thanks to data published by the Czech Statistical Office (available on www.volby.cz).
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Political aspects of local government – elections and voting behaviour of inhabitants of municipalities of Blovice city
Jan, Jaroslav ; Kopřiva, Radek (advisor)
Despite the transformation of party systems both at the national and sub-national political decision-making levels of politics, the hallmark of local political life of the municipality of Blovice city is a relative stability of the local party system. This fact is the basis of the Master thesis which aims to assess the nature of the electoral behavior of the local electorate in the elections to the municipal council with the ambition to evaluate the utility of the theory that is based on locally contextual interpretation. Partial objectives of the thesis that contribute to the main goal are the following: a description of the results of elections that are decisive for a development of the party system of Blovice city, a description of variables that underlie the permanent electoral support for the Civic Democratic Party (ODS) and the characteristics of electoral behavior of the local electorate. Thesis will be designed as a case study. A research will be based on voting decisions of electorate of Blovice city. The objects of the research will be the voters who participate in the elections to the municipal council and representatives of local politics and territorial autonomy. Value attitudes and voting behavior of voters will be assessed on the basis of data obtained by questionnaire. Electoral support of parties will be evaluated on the basis of data from unstructured interviews with local politicians (especially those from the party ODS). A local political life and in particular the election results will be described thanks to data published by the Czech Statistical Office (available on www.volby.cz).
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Separation Anxiety
Poživilová, Alena ; Fiala Šebková, Naděžda (advisor) ; Chmelíková, Eva (referee)
The purpose of the thesis was to develop a scientific review, as comprehensive as possible, of literature on separation anxiety in dogs. Separation anxiety is one of the most common behavioral disorders in domestic dogs. The thesis is of compilation nature. First, separation anxiety is described and explained as an independent concept in problematic behaviour of dogs. Further, the incidence and frequency of this behavioral disorder in the dog population are described, including risk factors that precede the onset of this behavioral disorder. Many risk factors exist, which are described in detail in the thesis. Both main and secondary symptoms are described; excretion, destructiveness, hypersalivation, and vocalization. The thesis also includes a chapter on the diagnosis of separation anxiety. This chapter describes how to proceed in an effort to remedy separation anxiety, and what the owner should arrange, what he/she should be attentive to and take care of. Prevention is discussed in the subsequent chapter. The final part of the review is focused on the therapy of separation anxiety. Possible therapies include behavioral desensitisation, modification of the behaviour, and reduction of dependence on the owner. For the therapy to be as efficient as possible, pharmacotherapy is recommended. The thesis describes treatment with clomipramine, potassium clorazepate in combination with fluoxetine, fluoxetine and diazepam. However, it is more advisable to prevent separation anxiety by the very choice of a suitable dog (characteristics of the individual, its temperament, and the breed), and by responsible education on part of the owner.
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