| |
|
Small mammals in diet of barn owl in the Eastern Meditarranean
Šindelář, Jiří ; Horáček, Ivan (advisor) ; Anděra, Miloš (referee)
The extensive material of skeletal remains of mammals from a diet of barn owl in the eastern Mediterranean has been processed and evaluated with different techniques of chorological and morphometric analysis. At least 8400 individuals of 45 species of insectivores, rodents and bats were found in our total collection of samples, which represents a significant portion of fauna of the region. We have evaluated a chorological composition of the taphocoenoses and the interregional differences, manifested primarily by differences in the representation of satellite and accessory elements. We found a highly significant impoverishment of the isolated island taphocenoses (Cyprus, Karpathos, partly on Crete), where Cricetidae, Arvicolidae, C. leucodon etc. are missing. On the other hand the essential part of the dominance structure takes up the Rattus rattus, which acts here as an invasive species, significantly more successful than in the ragged continental contexts. The species diversity of the examined samples is positively correlated with the geographic latitude (taphocenoses of the northern regions are significantly richer) and negatively with the island effect and the degree of aridization. The morphometric analysis of the three most abundant species of Soricidae within the studied region showed...
|
|
Alzheimer's dementia in the family - use of services of a day care and a week care centre
KOVAŘÍKOVÁ, Jaroslava
The thesis focuses on care of clients with Alzheimer's, including the burden of family members and possible options of using services of a day care and a week care centre. The theoretical part of the thesis deals with Alzheimer's disease together with nursing care, health care system in the Czech Republic and possibility to use services of day care and week care centres. In the empirical part of the thesis the method of qualitative research was used. A non standardized interview was applied as a method of questioning. The results of the qualitative research clearly show that the care for clients with Alzheimer's dementia represents a major burden for family members who care for the ill and in connection with the care provided they have to tackle following problems. They have to cope with the gradual deterioration of memory of the ill, which is associated with occasional forgetfulness, disorientation, wandering around. Another problem is to handle in an acceptable way the change of behaviour of their loved ones who often attack them both verbally and physically. Family members help patients with feeding, emptying, hygiene and grooming. They must solve the difficulties with activation of patients including memory exercises, they watch whether the patients swallow the medication. The conclusions of the thesis show that family members have to deal with many above mentioned problems when providing care for their loved ones. They themselves are tired and exhausted due to the care they provide, which is related to the incidents of their own health problems. They neglect themselves and their families, it is difficult for them to coordinate the care with their job and often come to work sleepy. For these reasons they would like to use services of day care and week care centres. It eases them of the burden of care, which they see as a benefit. The research revealed the expected services of the day care centre including expected nursing care. The research results were presented to the management of the Aftercare Hospital in Humpolec as it had planned to open a day care centre for patients with Alzheimer's dementia. Furthermore, the results served as a basis for the seminar for potential applicants, who would like to work in the centre. Based on information obtained in the course of writing of the thesis, a draft of the brochure was created which would serve as information material for family members of clients with Alzheimer's including the patients themselves.
|
|
Optimalization of material flow in automotive industry
Kolář, Tomáš ; Jirsák, Petr (advisor) ; Vinš, Marek (referee)
This master thesis is focussed on optimalization of material flow in an automotive company. First part introduce theoretical background. Automotive industry and its actual trends on global markets. Follows short introduction of the company where project of this thesis was executed. Main theoretical part describes concept of lean management, its tools in practical examples, but it is also focussed on philosophical approach to the work and mindset of the company. Follows the aplication part based on theoretical background. The whole project of this master thesis is focussed on specific area called PC store. At first this area is showed in context of overall material flow. Shortly there are introduced processes and areas where full material packaging flows. Follows deeper analysis and optimalization of PC store itself. There are three approaches of stock and lead time reduction applied. Last part shows the comparison of initial and future state including performed changes.
|
|
Changes in structure and phase composition in the surface of tram rail
Švábenská, Eva ; Roupcová, Pavla ; Schneeweiss, Oldřich
We have investigated structure and phase composition of surface layer of tram rails after long time running and the results were compared with those obtained on the original part of material. Changes due to effects of severe plastic deformation together with thermal shocks by friction process were expected. The information about structure and phase composition was obtained by optical and scanning electron microscopy, X-Ray Powder Diffraction, Mössbauer Spectroscopy and Glow Discharge Emission Spectroscopy (GDOES) and this was completed by microhardness measurements. The results show that the surface layer in comparison with the original material exhibits important changes in grain structure, an increase in microhardness and high content of iron oxide and hydrooxides. According to the depth profile of the chemical composition measured by GDOES there is an increase in carbon content in the surface layer which can be effect of up-hill diffusion.
|
|
STRAIN ENGINEERING OF THE ELECTRONIC STRUCTURE OF 2D MATERIALS
del Corro, Elena ; Peňa-Alvarez, M. ; Morales-García, A. ; Bouša, Milan ; Řáhová, Jaroslava ; Kavan, Ladislav ; Kalbáč, Martin ; Frank, Otakar
The research on graphene has attracted much attention since its first successful preparation in 2004. It possesses many unique properties, such as an extreme stiffness and strength, high electron mobility, ballistic transport even at room temperature, superior thermal conductivity and many others. The affection for graphene was followed swiftly by a keen interest in other two dimensional materials like transition metal dichalcogenides. As has been predicted and in part proven experimentally, the electronic properties of these materials can be modified by various means. The most common ones include covalent or non-covalent chemistry, electrochemical, gate or atomic doping, or quantum confinement. None of these methods has proven universal enough in terms of the devices' characteristics or scalability. However, another approach is known mechanical strain/stress, but experiments in that direction are scarce, in spite of their high promises.\nThe primary challenge consists in the understanding of the mechanical properties of 2D materials and in the ability to quantify the lattice deformation. Several techniques can be then used to apply strain to the specimens and thus to induce changes in their electronic structure. We will review their basic concepts and some of the examples so far documented experimentally and/or theoretically.
|
|
ELECTRON BEAM REMELTING OF PLASMA SPRAYED ALUMINA COATINGS
Matějíček, Jiří ; Veverka, J. ; Čížek, J. ; Kouřil, J.
Plasma sprayed alumina coatings find numerous applications in various fields, where they enhance the properties of the base material. Examples include thermal barriers, wear resistance, electrical insulation, and diffusion and corrosion barriers. A typical structure of plasma sprayed coatings, containing a multitude of voids and imperfectly bonded interfaces, gives them unique properties - particularly low thermal conductivity, high strain tolerance, etc. However, for certain applications such as permeation barriers or wear resistance, these voids may be detrimental.\nThis paper reports on the first experiments with remelting of plasma sprayed alumina coatings by electron beam technology, with the purpose of densifying the coatings and thereby eliminating the voids. Throughout the study, several parameters of the e-beam device were varied - beam current, traverse velocity and number of passes. The treated coatings were observed by light and electron microscopy and the thickness, structure and surface morphology of the remelted layer were determined and correlated with the process parameters. Based on the first series of experiments, the e-beam settings leading to dense and smooth remelted layer of sufficient thickness were obtained. In this layer, a change of phase composition and a marked increase in hardness were observed.\n
|
|
Nursing care for woman at minor gynecological surgeries
KÁPLOVÁ, Veronika
Minor gynecological surgeries are defined as surgeries after which the patients are dismissed from hospital to home care within 12 to 24 hours. The purpose of pre-surgery care provided by a midwife is to ensure thorough somatic and mental preparation of the patient for the surgery. The patient is required to sign all necessary consents with the surgery, she shall be informed about the course of pre-surgery care, the surgery itself, post-surgery recovery and naturally also about all risks involved. The result of a consistent instruction provided by a midwife shall be a patient who is calm and mentally prepared for the surgery (Henková, 2010; Repková, 2006). The bachelor thesis includes a theoretical part and a practical part with research. The theoretical part focuses on minor gynecological surgeries and nursing care before and after the surgery. The objective of the bachelor thesis was to survey the level of awareness among women about minor gynecological surgeries. Two research questions were formulated to meet the objective: what the level of awareness about minor gynecological surgeries is among women and which method of information provision would be appreciated by women. The research part of the bachelor thesis employed the method of qualitative survey. The data were collected by means of semi-structured interviews. The surveyed set of respondents consisted of 8 women. The interviews were conducted from the beginning of February to the end of March 2014. The survey was expected to provide information about whether the women had been sufficiently informed about minor gynecological surgeries. For the category of pre-surgery period we investigated the following: What is the experience of women with previous nursing care? To what extent were the women informed by their local gynecologists and were they sufficiently informed in the hospital before the surgery? The results have shown that most of the respondents did not have any previous experience with nursing care. Two respondents said that they had previously undergone a minor surgery and that they were content with the nursing care. Results of the survey have shown some gaps in the form and quantity of information provided in medical offices of the local gynecologists. One half of the respondents were not content with the information provided in the medical offices. The information provided in the hospital before the surgery was assessed positively by five respondents out of eight and they appreciated particularly the personal and accommodating approach, professional conduct and empathy. For the category of post-surgery period we investigated how the respondents saw the approach of the nursing staff in the operating room. The results have shown that the respondents evaluated positively particularly the fact that the physician introduced himself/herself to the patient and provided information about the subsequent care. For the category of post-surgery care we also investigated subjective feelings of the respondents after the surgery, their awareness of the post-surgery regime at home and the form of information provision. Results of the research suggest that patients are highly perceptive, particularly when it comes to friendly gestures and words. The information about the home post-surgery regime was rated positively by one half of the respondents and negatively by the other half. On the other hand, they appreciated the personal and accommodating approach and professional conduct. Most of the respondents were content with the form of information provision. Some of them would have appreciated to have a leaflet or information brochure containing all important information. The theoretical part of the bachelor thesis can be as used as a study material for future students of midwifery at the Faculty of Health and Social Studies of the University of South Bohemia.
|
|
The Liberation of Pilsen 1945 in Photography
Křenová, Tereza ; SILVERIO, Robert (advisor) ; JANOŠČÍK, Václav (referee)
This bachelor thesis deals with liberation of Pilsen in May 1945 by american army in photography. The aim of this thesis is finding and collecting archival materials and placing them in a historical-political context. Communist regime changed the portrayal of historical events and directly influenced the amount of exisiting photographs, documents and lives of those who created them. Important part of this bachelor thesis is working with those archival materials – particularly with photographs capturing arrival of Americans and their stay in Czechoslovakia at the end of WW2. Both professional and amateur photographers created valuable photographs as they witnessed the liberation of Pilsen. These photographs became in spite of communist propaganda a clear evidence that Pilsen was liberated by american army.
|
|
Sorption and Stabilization of Metals/Mettalloids by Innovative Synthesized Sorbent Amochar.
Ouředníček, P. ; Trakal, L. ; Komárek, M. ; Pohořelý, Michael
Remediation of contaminated soil which is based on stabilization and immobilization of potential\nhazardous substance by sorption materials has been studied intensively nowadays. Biochar – activated organic carbon belongs to this group of stabilizing agents which can adsorb wide range of contaminants, including metals/metalloids. Surface area of the biochars is quite large in general and functional groups (e.g. COO–) can form chelates or alkaline elements on the surface, which is represented by cation exchange capacity. Altogether with the high pH values (7.00 – 10.00), biochars are quite effective sorbents and can adsorb metals/metalloids from the solution (ground water), especially in acidic soils (in the environments affected by intensive mining activities). Sorption\neffectiveness can be increased (especially for As (V) or Cr (VI) sorption) by modification of biochar by various types of secondary oxides. Innovative sorbent AMOchar (AMO + biochar) has been synthesized currently. The product was prepared by adding of biochar to the reaction solution during amorphous manganese oxide (AMO) synthesis. The AMOchar was formed mainly by Mn-oxalates which had coated surface of the pristine biochar. AMOchar composite was able to remove significantly higher amounts of various metal(loid)s from the solution despite the rather high pH of the material. Sorption effectiveness was high not only in case of Pb (II) sorption (almost 99%), and Cd(II) (51.2%), but also a very high amount of As(V), 91.4%. Additionally, both AMOchar composite was able to reduce Mn leaching. This can avoid potential post-contamination caused by the dissolution of less stable Mn-oxalates as observed in the pure AMO.
Fulltext: content.csg -  PDF
Plný tet: SKMBT_22316111113040 - PDF
|
guest ::
