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Growth of organic semiconductor on heteromolecular layer
Mrhačová, Petra ; Redondo, Jesús (referee) ; Procházka, Pavel (advisor)
Tato diplomová práce se zabývá přípravou a analýzou heteromolekulárních vrstev obsahujících molekuly kyseliny 1,3,5-benzentribenzoové (BTB) nebo kyseliny 4,4'-bifenyl-dikarboxylové (BDA) spolu s pentacenovými molekulami na substrátu Ag(111). Uspořádání molekul v takových vrstvách závisí na několika faktorech, jako je množství deponovaných molekul na povrchu, pořadí, v jakém jsou molekuly deponovány, a míra deprotonace jejich karboxylových skupin. Následně byl studován růst organického polovodiče pentacenu na heterovrstvě obsahující BTB a pentacenové molekuly. Bylo zjištěno, že růst probíhá ve formě velkých ostrůvků, které se rozrůstají dendriticky. Tyto ostrůvky však nejsou kompaktní, ale skládají se z malých molekulových klastrů. Všechny vytvořené vrstvy byly zkoumány v podmínkách ultravysokého vakua (UHV) pomocí nízkoenergetického elektronového mikroskopu (LEEM) a rastrovacího tunelového mikroskopu (STM).
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Organic bicomponent layers formed by electron acceptors and donors on metals
Šebestová, Zuzana ; Průša, Stanislav (referee) ; Krajňák, Tomáš (advisor)
This bachelor thesis is focused on the description of preparation and characterization of bicomponent layers made of organic molecules tetracyanoquinodimethane (TCNQ) and 4,4’-biphenyl dicarboxylic acid (BDA) on Ag(111) substrate under ultra high vacuum (UHV) conditions. The work initially focuses on covering the Ag(111) surface with individual molecules separately, and then on the co-deposition of both molecules simultaneously. The influence of the order and duration of depositions on the resulting mixed structure is examined. This thesis also includes the results of mixed structures formed by fully protonated and deprotonated BDA molecules. A low-energy electron microscope (LEEM) and a scanning tunneling microscope (STM) were used to subsequently characterize the fabricated heteromolecular structures. The measured data of the mixed structures were complemented by reciprocal and real space models with a specified unit cell.
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Deposition of GaN nanocrystals with Ag nanoparticles
Michalko, Matej ; Dvořák, Petr (referee) ; Čalkovský, Vojtěch (advisor)
The presented bachelor thesis deals with the preparation of GaN nanocrystals with Ag nanoparticles. In the theoretical part GaN, its properties and applications are introduced. Furthermore, possible substrates for GaN growth and preparation methods are presented, with a main focus on MBE. The thesis also discusses the basic principles of photoluminescence and its enhancement using metal nanoparticles. The experimental part deals with the preparation of GaN nanocrystals with Ag nanoparticles. First, Ga islands are deposited on Si(111) substrate, the second step is Ga nitridation. Subsequently, Ag nanoparticles of different sizes are deposited. The different steps were optimized and measured by analytical techniques such as SEM and photoluminescence. Finally, the dependence of the photoluminescence enhancement on the size of Ag nanoparticles was established.
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Higher education options for visually impaired students
Marková, Jana ; Šumníková, Pavlína (advisor) ; Květoňová, Lea (referee)
According to Act No. 111/1998 Coll., universities are required to provide persons with various types of disabilities suitable conditions for studying at a university. This support is not specified in detail in the Act, so each school decides individually what steps to take in this area, but there is an effort to gradually harmonize methods. This thesis is focused on the support provided specifically to students with visual impairments. In the theoretical part of the thesis, the main idea is to describe what kind of support students with visual impairments need and what are its possibilities in the field of education. The aim of the practical part of the thesis is to find out what kind of support is currently provided to students in the Czech Republic and how it is used and evaluated by them. The qualitative method of a structured interview was used to answer these questions. Responses show that students are provided with support commensurate with their needs and none of the respondents feel that professional centers do not provide such support sufficiently. KEYWORDS college student, visually impaired, visually impaired students, college counselin
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Effects of repeated eccentric contractions in the therapy of tendinophaties
MAREK, Michal
This bachelor's thesis deals with the topic of tendinopathies, specifically the use of repeated eccentric contractions in the therapy of lateral elbow tendinopathy. The thesis is divided into a few sections. The anatomical structures, biomechanics and kinesiology of the elbow joint and the muscles associated with this diagnosis are described in the first section. The second part of the theoretical section is about current research and theoretical overview of tendinopathies as a whole. The pathophysiology and possible mechanisms of origins of tendinopathies and the concepts used within therapies. The last part of the theoretical section deals specifically with lateral elbow tendinopathy. Overview of the main knowledge concerning this diagnosis is summarized in this part and also the most prevalent methods of physiotherapy treatment and their evidence-based findings. The practical goal of this thesis involved a research group containing 3 participants with the later elbow tendinopathy diagnosis. The participants were given an individualized and structured training plan of repeated eccentric contractions for the period of 12 weeks. The methods of obtaining data were by an interview, entrance and output kinesiology analysis a by collecting subjective values recorded on the visual analogue pain scale. Each of the 3 participants recorded an improvement in all outcome measures pain during activity, pain upon palpation and pain during physical examination tests. There needs to be more extensive and follow-up studies to support these findings. If the follow-up studies show similar results, these papers could help unify and objectify the proposed therapeutic interventions and make the process of monitoring patients during rehabilitation easier.
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Vliv fyzioterapie na kondici, koordinaci a posturální stabilitu u osob s Parkinsonovou chorobou.
DOMASOVÁ, Martina
Parkinson's disease is a neurodegenerative progressive disease that cannot be cured even today. However, it is possible to influence and slow down its progress to a certain extent. Symptomatic treatment is used to suppress the disease, of which physiotherapy is an integral part. In Parkinson's disease, physiotherapy can suppress the symptoms of this disease, improve the patient's condition and significantly help the patient maintain a higher quality of life for a longer period of time. The first aim of the bachelor thesis was "To draw attention to the importance of physiotherapy in a patient with Parkinson's disease". The second aim was "To map the possibilities of physiotherapy in a patient with Parkinson's disease". Both of these goals were fulfilled and described in the theoretical part in subchapter 1.8.3. In addition, the practical part of this thesis refers to the first one, where it is possible to see the changes in the condition of the patient with Parkinson's that occur when applying group exercise to his regimen. The third aim was "To design an exercise that would lead to the improvement of the condition of the patient with Parkinson's". This goal is dealt with in the practical part of this thesis. Based on the knowledge gained in the theoretical part, an exercise unit was created, which was then applied for two months to a group of seven probands. To evaluate its effect on the condition of patients, input and output kinesiological analyses were compared, including clinical tests to examine fitness, coordination and postural stability (FTSST, TUG, BBS, Pull Test, Push & Release Test).
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The role of the pediatric nurse in the realization of newborn screening
KUBÍKOVÁ, Michaela
This bachelor thesis examines the role of a pediatric nurse in providing newborn screening, focusing on the educational process of mothers, their involvement during the screening process, and the challenges they encounter. The aim is to describe the range of nursing activities involved in providing newborn screening. The thesis is divided into theoretical and practical parts. The theoretical part provides detailed descriptions of population-wide screening examinations. Specifically, it covers screening for congenital syphilis from umbilical cord blood, laboratory screening for 20 diseases, screening for cataracts, congenital deafness, and developmental dysplasia of the hips. In subsequent chapters, I focus on the competencies of pediatric nurses and their role in providing newborn screening. The practical part includes methodology, research findings, and discussion. The data collection utilized a semi-structured interview method. The research sample consisted of pediatric nurses working in the physiological newborn unit and intermediate care station at the neonatology department of the Hospital České Budějovice a.s. and at the pediatric department of the Regional Hospital Jihlava. During the interviews, I asked a series of questions to nurses to ascertain their familiarity with newborn screening issues. Based on the establishment of one goal, three research questions were formulated. The first question addresses the extent of parental education currently provided by pediatric nurses. The research indicates that the majority of nurses have a comprehensive understanding in this area and are able to convey the required information to parents. The second question examines nurses' opinions on parental involvement in newborn screening implementation. The research demonstrates that nurses actively encourage parents' presence during procedures. The third question focuses on the challenges that pediatric nurses may most commonly encounter in providing newborn screening. To a small extent, there is a possible underestimation of procedural pain management by parents during procedures. However, the research does not reveal any significant issues in providing newborn screening.
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The role of the paediatric nurse in vaccination
SMETANOVÁ, Lucie
Current situation: Nowadays, we can more often meet parents who refuse expectations for their child. For other parents, it is not clear how they should behave when offered standard and above-standard vaccinations. They do not have enough information, or they have too much information, often purposeful, often inaccurate, or, on the contrary, expert but not understandable to the general public. Aim of the study: The aim of the research was to determine the current role of the paediatric nurse in the vaccination process, to assess their role in providing information to parents, to identify the barriers encountered by paediatric nurses in the vaccination process and, last but not least, to assess the level of parental awareness of vaccination. Methodology: For the quantitative research, non-standardized questionnaires were used. The questionnaires were distributed via social networks and also in paper form in the South Bohemia region. 215 questionnaires were obtained and processed as part of the survey. Qualitative analysis was carried out using semi-structured interviews. Nurses working in primary care at PLDDs in České Budějovice and Třeboň participated in the interviews. Results: The quantitative part of the survey found that parental awareness is high and parents often seek information about vaccination themselves. Out of the total 215 respondents, only 6 (3%) respondents do not vaccinate. The biggest reasons for not vaccinating are concerns about the reaction. Related to this is the question about fear of side effects, to which 111 (52%) of the 215 respondents answered that they were concerned. Paediatric nurses play a very important role in the vaccination process from education, storage, preparation, administration of the vaccine to monitoring the child after vaccination. From the qualitative survey, it was assessed that the key role of the pediatric nurse lies in the education of both children and adults. The results of the quantitative survey also agree with this. Conclusion: It is very important not to stop vaccination education. Parental education is therefore very important and should be started as soon as possible.
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Ethical questions in the work of radiation protection specialists
HÝBLOVÁ, Marie
This thesis deals with the ethical decision-making of radiation protection professionals in accordance with the Decree 422/2016 Coll. on Radiation Protection and the Atomic Act 263/2016 Coll. The aim of the thesis is to identify and specify the ethical problems encountered by radiation protection professionals (e.g. radiation protection officers, inspectors of the SNPP, etc.), to analyse ethical issues and dilemmas in this field and to find answers. The theoretical framework focuses on the concept of ethics, its development, history and a detailed description of the different ethical orientations. It then goes on to cover the basic ethical values in the radiation protection system, procedural ethical values, principles of radiation protection, protection from external exposure, monitoring, incidents, accidents and their assessment, preparedness and response. The radiation protection chapter also includes a description of the infrastructure of the radiation protection system. The theoretical part of the thesis also includes a description of organisations dealing with radiation protection in the Czech Republic and organisations dealing with radiation protection in the world context. The empirical research was conducted through a questionnaire survey and structured interviews that were completed by radiation protection personnel. The research results were evaluated using qualitative methods. The research questions were designed by asking respondents about their attitudes towards ethical issues in radiation protection and their experiences and views on aspects of working in this field. The research results were then interpreted to analyse the ethical issues and dilemmas faced by radiation protection professionals in their work. The thesis focuses on identifying key aspects of ethical decision-making in radiation protection and explores ways to improve current practices and policies. Subsequent results provide important insights into professionals' attitudes towards ethical issues. The conclusion of the research highlights that radiation protection requires an integrated approach that respects the diverse approaches of professionals in this field. Transparent communication and public participation are key to successful radiation protection strategies.
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Study of the ecological impact of production, operation and disposal of various types of cars
Kutnar, Václav ; Jandová, Kristýna (referee) ; Jaššo, Kamil (advisor)
To reduce greenhouse gas emissions, countries have focused on (among other things) automobile transport. However, there are different car powertrains, and each produces a different amount of emissions from different parts of their lifecycles, which also vary from state to state. Knowing exact, comparable values is necessary for deciding how to reduce these emissions most efficiently and economically possible. Existing studies often focus on only one part of the life cycle and/or are not localized to a particular state. This study analyses the entire life cycle of a vehicle and its fuel or energy for a vehicle manufactured, operated, and recycled in the Czech Republic. It draws on existing studies, supplemented by data from state agencies, vehicle manufacturers, and our calculations. It was found that in the Czech Republic, compared to a vehicle with a petrol internal combustion engine (ICEVg), an electric vehicle (BEV) has 33% lower total GHG emissions, and a vehicle with hydrogen fuel cells (FCEV) 19% lower. However, an internal combustion engine vehicle has lower emissions from its production and as a result, its cumulative emissions are lower than an electric vehicle until 70,000 km driven and a hydrogen fuel cell vehicle until 111,000 km
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