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On-line learning in real-time environments
Pacovský, Ondřej ; Spier, Emmet (advisor) ; Mrázová, Iveta (referee)
In this work, a novel reinforcement learning algorithm, Stimulus Action Reward Network (SARN), is developed. It is targeted for application in real-time domainswhere the inputs are usually continuous and adaptation must proceed on-line, without separate training periods. Another objective is to minimise the amount of problem-specific teacher(human) input needed for successful application of the algorithm. The SARN architecture combines a connectionist network and scalar reinforcement feedback by employing Hebbian principles. By adapting the network weights, connections are established between stimuli and actions that lead to positive feedback. Since the links between the input stimuli and the actions are formed quite rapidly, it is possible to use a large number of stimuli. This leads to the idea of using recurrent random network (Echo State Network) as a pre-processing layer. Prototype implementation is tested in Unreal 2004 game environment. The comparison with Q-learning shows that on the time scale of tens of seconds to minutes, SARN typically achieves better performance. When coupled with an Echo State Network, SARN requires a uniquely low amount of problem-specific information supplied by the teacher. These features make SARN useful for domains such as autonomous robot control and game AI.
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Investing of hedge funds using price volatility of investment instruments
Přibáň, Filip ; Brada, Jaroslav (advisor) ; Kováč, Michal (referee)
Volatility of value of assets and revenues is one of the most important factors, which influence current financial markets. Its increase in recent decades is a big risk for financial markets and real economy. But volatility is not just a thread, it is also an opportunity to make profits. It makes sense, that financial instruments that make profits from increase or decrease of volatility on financial markets are very popular nowadays. Because of this in last years investment banks issued a lot of derivatives that make profits from significant changes of value of assets and revenues. Hedge funds want to make profits from volatility as well so they offer their clients funds with sofisticated strategies and different investment attitudes. These strategies and economical models that analyze volatility are very important for us to understand how this phenomenon works. This is not crucial only for traders or portfolio managers, but for macroeconomists as well. Significant movements on currency, stock or bond markets can influence real economy rapidly.
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Environment impact assessment of the Jezera landfill
Bidrman, Zdeněk ; Trakal, Lukáš (advisor) ; Irena, Irena (referee)
The aim of this thesis is to evaluate the impact of closed landfill Jezera on groundwater quality and environment of its surroundings. The data from the monitoring of the groundwater were analyzed as part of the thesis. Data were evaluated by their arrangement, comparison with legislation limits and commenting trends of pollutant concentrations in time. Carried out research found out the concentration of majority monitored pollutants is decreasing over time, except particular group of substances, especially heavy metals group, whose values are constant over time. Based on learned data, it is possible to claim that carried out landfill protection and its surrounding area was successful. Due to the lucrative locality and increasing pressure on installation of development, it is necessary to consider further observation of groundwater quality in the area and modify the scope of the observed substances according to the assessment carried out.
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The effect of the dog-asissted activity in children disorders of psychological development during education
Schwarzová, Kristýna ; Chaloupková, Helena (advisor) ; Katerina, Katerina (referee)
The goal of the thesis was to find out if dog´s presence and the targeted work of a child with a dog helps improve children´s attention to teaching and their results. The majority of academic literature shows that dog assisted therapy constitutes a clear benefit for children. However, the research on this topic is still in its infancy and the literature is still relatively limited.
The thesis deals with the interactions of a child and a dog, especially in the case of children with attention deficit hyperactivity disorder (ADHD), specific learning disorders (SPU), and autistic spectrum disorders (PAS). The general conclusion of the existing literature is that animal assisted therapy with the dog helps children with ADHD improve their fine motor skills, increases their attention, decreases aggressiveness, and helps to improve speech disorders. But it is not clear what the impact on other types of disorders is. This thesis first focuses on reviewing the existing literature and its main results that mostly confirm the positive influence of involving the dog in therapy by all observed disorders. The second part of the thesis deals with experimental verification of the hypothesis of a positive influence the dog´s presence and the targeted work of 8 children in the age of 7-9 years from a special school has on attention and behavior in the classroom. Four of the children were diagnosed with ADHD, two with SPU, and two with an autistic spectrum disorder. The experiment was carried out two times a week, and focused on observing the extent of children´s concentration on the given task, calming down, attention while solving the assignments, and reduction of negative physical contacts among observed subjects. The data collection took place during regular classes. Once in a week, the class was preceded by the animal assisted therapy with the dog, which formed the treatment group. The second session in the week was not preceded by any therapy to establish the control group for the experiment. The results verify our hypothesis by revealing the strengthening of the positive influence of teaching on the observed skills of the children. The positive influence of the dog is supported by the fact that the children achieved more success in its presence. However, further research on larger samples and children from other age categories is needed.
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Low-power electrical sources
Kotásek, Ondřej ; Pazdera, Ivo (referee) ; Procházka, Petr (advisor)
In the theoretical section describes the different types of DC / DC converters, which are among the best known. It's a drive with one storage element, decreasing and increasing non-inverting converter, an inverting converter with a common choke and Čuk’s changer. The second part deals with the actual design and implementation of the two input sources for low power. Here are described two main components designed for each circuit. Furthermore, the work to create schematics and PCB in Eagle. Finally, learn how to solder components on the PCB made.
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Vliv složení piva na rychlost odbourávání alkoholu
Svobodová, Pavla
The thesis deals with the measurement of alcohol level and blood pressure after drinking two types of beer (lager and special beer) at regular intervals. The first part is literary search that provides general overview of the composition of beer and positive and negative effects of individual components of beer on human health. It also talks about influence of beer consumption on the cardiovascular system and the reproductive system of women. Readers can learn about trends of beer drinking in the Czech Republic and the USA. The practical part includes measuring of breath alcohol and blood pressure after drinking two kinds of beer, sensory analysis of tested samples and analysis of beer. The measurement includes 20 participants. The body composition of participants was analyzed on the InBody. We demonstrated slower degradation of alcohol (P > 0,05) in beer special. After drinking both kind of beer, we noticed a decrease in blood pressure (P > 0,05).
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A View of Asthma Bronchiale-Psychosocial Problems
VACKOVÁ, Sabina
I chose as the theme of my bachalor´s work in order to outline the influence of this illness on psychosocial feelings of patients.I pose a question in my work whether care for patients is fully understood and sufficient from the psychosocial point of view.My profession is a nurse and I meet and help people suffering from this illness quite often.While talking with them,I found out that their troubles were often of psychosocial character and resulted from lack of information about their illness.A majority of patients did not cope with the fact that asthma is a chronic illness and will accompany them all their lives.Asthma interferes not only in the life of a particular patient,but above all in the lives of his family members.Support and help on the part of the family is important for the patient to accept his illness and to learn to live with it.Asthma in alll age groups has adverse consequences in the social area too.In chidren,it reduces the chance to fit in with a children´s collective and increases absence from school,later it limits freedom in choosing a career and decreases chances to assert oneself both in the personal and social area. the extent of information provided by health workers has a great influence on the correctly conducted treatment and preventing complications.Nowadays,the picture of asthma in changing a great deal as further modern,even more effective medicaments and their combinations are launched.The transfer of a certain part of responsibility to the patient himself requires,of course,more information and knowledge on his part.For experts this not only means a necessity to train themselves constantly and to follow the development of science and research,but also to ensure a permanent supply of fresh information to the patient.
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Arini - trade, captive breeding, distribution pattern
KAMENICKÁ, Karolína
Excessive exploitation of natural resources and devastation of wild nature leads to drastic biodiversity decline. Macaws are endangered by trade for their beautiful colourful feathers, ability to learn to talk and become great companion parrot. Eight of the sixteen species of macaws are classified as vulnerable, endangered or critically endangered and all populations of macaws are decreasing. Species Cyanopsitta spixii is extinct in wild nature. Aims of my thesis are evaluation of world trade with species of Arini tribe, according to the temporal aspect, country of export, country of import and for individual species. In the second part of thesis are complete information about biology and biogeography of macaw species, their occurrence in nature and breading in captivity. The first analysis of trade with macaw's species provides statements about export and import countries, most traded species and commodities, source of the specimens and purpose of the transaction. Results of analysis shows, that in during period 1981 - 2013 was traded with 260 476 specimens. The most traded species were Ara ararauna, Ara chloroptera and Diopsittaca nobilis. Countries with highest export were Guyana, Bolivia and South Africa and country with highest import was The United States of America.
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Use of experiential pedagogic methods in systematic work with pupil's group
Ušáková, Veronika ; Valentová, Lidmila (advisor) ; Pavelková, Isabella (referee)
Use of experiential pedagogic methods in systematic work with pupil's group The goal of this paper was to create and realize a supportive stimulative program for a group of elementary students with specific learning disabilities focused on support of positive self-concept and self-evaluation, which have been decreased in case of school unsuccessfulness and on development of student's social ability. The supportive and stimulating program comes from theoretical findings in the area of experiential education, social psychology and psychology of personality. Keywords Supportive stimulative program, experiential education, self-concept, self-evaluation, social ability, specific learning disabilities
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Childrenś nursing care with pneumonia
HRUŠKOVÁ, Lenka
Pneumonia still belongs to most frequent and most serious disease of child age. In the Czech Republic, approximately 30,000 children at the age within five years are attacked by pneumonia annually. In total, as many as 100,000 Czechs come down with pneumonia every year. Even today, a certain percentage of children die of pneumonia. The clinical picture of acute pneumonias has changed over the last years. The number of bacterial pneumonias has decreased whereas the number of viral ones has increased. The theoretical part of the bachelor's thesis contains classification and description of differences of pneumonias occurring in children; the persisting hazardous character of this disease is accentuated and the overview of the nursing care for children suffering from this disease is provided as well. The application part of the research determined 2 goals; on the one hand, to discover what nursing care for children with pneumonia is provided currently and on the other hand, the level of education and knowledge on the part of the parents of the children suffering from this disease in home environment. Based on the foregoing, 3 hypotheses were determined. H1: The nursing care for children with pneumonia focuses on specifics of the respective disease. H2: The parents of the children are educated with respect to nursing care for children with pneumonias in home environment. H3: The parents of the children are well-informed of the prevention against the disease - pneumonia. The data were collected by the method of quantitative research in two hospitals in Prague, namely in FN Motol (teaching hospital) and in Nemocnice Na Bulovce (hospital) on the paediatric wards. The quantitative research was executed by means of questionnaires for the nurses and for the parents of the children hospitalized on the paediatric wards of FN Motol and Nemocnice Na Bulovce. The research set consisted of the hospitalized children at the age of 0 to 19 and their parents. In addition to the nurses working on the paediatric wards of both the hospitals. Collection of data proceeded from January 2012 to March 2012. The research confirmed in practice that the nursing care is provided by the nurses at a relevant level that it is accommodated to the child's age and the ability of the parents to cope with the necessary tasks. Information, education, advice are provided regardless of the mostly short period of hospitalization of the child within sufficient extent. The research focused on the parents of the hospitalized children revealed that with respect to the child's health condition, the parents cooperate readily; they learn to cope with the tasks concerning care for the child in home environment before the child is released to home care. The research revealed that the weak side is the remembering of all the necessary facts. Here the parents would welcome more extensive printed material concerning the disease, home care and more detailed prevention. The results of the thesis can be used for the parents as well as the nursing personnel as the overview of the pneumonia disease in children and the nursing care devoted to such children as this issue is paid less attention in the information sources than in the case of adult patients, and a comprehensive overview containing a guide to care for child with pneumonia has not been published in an integral form yet. The output is the information booklet for the parents of the children with this disease, focused in particular on the care for the child.
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