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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.
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Relationship between electronic music and film
Švarcová, Johana ; BENDOVÁ, Helena (advisor) ; MAREK, Petr (referee)
In this work the mutual relationship between film and electronic music with particular focus on early sci-fi movies is discussed. This work is coming out from a phenomenal relationship between music and sound effects not often found outside of this genre. This topic is the rich source of an interdisciplinary overlaps and the cultural contexts, however not so much interest has been put yet to this field neither from Film or history of Electronic Music.
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Comparison of old and current cine lenses in combination with modern digital camera
Jakubec, František ; HOJDA, Petr (advisor) ; MIKŠ, Antonín (referee)
A Director of Photography has many artistic possibilities when working with cine lenses. Today, we can produce many optical effects in digital post-productions; however, working with lenses and with their defects (aberrations) is very interesting when you use them with modern recording technology. This thesis examines a small part of these issues. The theoretical part is about general qualities of optical systems, their aberrations, and measurement of picture quality. Furthermore, there is also a description of the movie camera and lenses, which were used for testing. The analytical part is about analyzing real footage from tests.
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San Minn (or) An Artist who prefer creating and paintings than his life
Zeya, Pyin Nyar ; JANEČEK, Vít (advisor) ; VOJTĚCHOVSKÝ, Miloš (referee)
No one can control a painter artist’s freely thoughts and ideas and although his paintings were under the high pressure and banned by force, the artistic value of his materials never go down. So that I am writing this paper.
He, San Minn has broken out the mainstream of Burmese painting field, he never made business paintings as well. He keeps his belief on the art of paints and he is always finding for the new way to make his paintings. His materials are very different from other Burmese painter artists’ materials. His style is unique in Burmese paintings. So I can get a chance to study of his style, ideas, ways of thinking and his determination on the art works.
My paper can show a painter artist’s life who grew up under the military rule for 50 years and the situation and history of Burmese painting field. Then not only people who are studying the painting subject, but also other people can know about the subject of Burmese painting and field of artists. I dare say that my paper must be colorful and fruitful.
As a painter artist, it seems that he wants his audience to feel his materials but he rare to show his real life behind the pictures. For me, I can get a chance to know about his real life for my thesis paper.
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Thesis Statement
My thesis can be useful for everybody who is interested in Burmese contemporary art field.
This is the biggest chance to read about one of the most famous, important and significant artists and art movements of Burma. His paintings are reflecting his journey through over 40 years of censorship, but he was not afraid to tackle political and social issues.
Many of San Minn's art works are based on autobiographical, making sharp social commentary on the popular culture, social values and scenario circumstances where he has lived in.
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Nutrition and other factors, which have influence on the formation and prevention of colorectal cancer
BENEŠOVÁ, Lucie
The full title of my bachelor thesis is Nutrition and Other Factors Influencing the Development and Prevention of Colorectal Cancer. In the theory section of the paper I have concentrated on clarifying the term "colorectal cancer", its epidemiology, and furthermore, on diet and other risk factors concerning the development and prevention of this disease. In this theory section I have included information about screening tests for occult bleeding. I have addressed the key objectives in the practical section of the thesis. I had set two key objectives. The first was to research how well respondents were informed concerning diets beneficial in the prevention of colorectal cancer, and the second objective concentrated on assessing the respondents' behaviour in relation to the information they had acquired. The research questions were formulated thus: "How well are people informed about diets aimed at preventing colorectal cancer?" and "Do people behave according to information thus gained?" The qualitative research method a semi-structured interview was used for the research section. Ten male respondents over the age of 45 took part in the interview. Five of these males were Dr Ilona Paseková's outpatients all with a genetic disposition to colorectal cancer, with most experiencing problems related to this disease. The other five respondents were without any predispositions. After receiving answers to the questions posed to the respondents, I wanted to compare both groups in order to ascertain whether those with a genetic predisposition showed a greater interest in this disease. Furthermore, I wanted to find out whether those respondents were actively seeking information concerning the prevention or treatment of colorectal and anal cancer. All those interviewed were very open and willing to answer questions. Collection of data was carried out from January 2014 to March 2014. The conclusions of this thesis show that public awareness of colorectal cancer and its prevention is inadequate. Public awareness of diets beneficial in the prevention of colorectal cancer is markedly poor, even among high-risk respondents. Having observed this lack of awareness, I proceeded to question respondents as to their dietary and lifestyle habits. Furthermore, the respondents were asked if they were aware that colorectal cancer screening was available in the Czech Republic. The results showed that some respondents, however unaware of diets beneficial in the prevention of colorectal cancer, follow a healthy diet, thus fulfilling dieticians' recommendations concerning the prevention of this disease. When asked about preventive foods, respondents most often mentioned brassicas broccoli and cabbage, etc. Conversely, the most often mentioned foods said to increase the risk of disease were smoked meat and red meat. One respondent mentioned the preventive affects of shark cartilage. I was very surprised by this assertion and subsequently searched the internet for information relating to shark cartilage. To my surprise, I found that the respondent was indeed not mistaken, and that statements to that effect can be found on websites promoting dietary supplements containing shark cartilage extract. According to these sources sharks do not suffer from cancer and therefore, their cartilage is closely studied and dietary supplements containing its extracts are produced. Furthermore, I intended to compare two groups of respondents those with genetic dispositions and those without. After carrying out the respective interviews, their comparison appeared to be futile. In both groups I identified respondents who followed a healthy diet and lifestyle as well as those who did not. I found that there is no relation between high-risk habits and predisposition to colorectal cancer. Whether a respondent with such a predisposition decided to follow a healthy diet or change his dietary habits and lifestyle or not was purely a question of his personal preferences.
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Global Economy Outlook - November 2016
Česká národní banka
The November issue of Global Economic Outlook presents the regular monthly overview of recent and expected developments in selected territories, focusing on key economic variables: inflation, GDP growth, leading indicators, interest rates, exchange rates and commodity prices. In this issue, we also focus on the relationship between the Brent crude oil price and the US dollar exchange rate over the last ten years. The results show that the inverse relationship between the Brent price and the nominal effective exchange rate of the dollar still applies, helping dampen fluctuations in the dollar price of oil in “non-dollar” economies.
Fulltext:  PDF; PDF
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Global Economy Outlook - October 2016
Česká národní banka
The October issue of Global Economic Outlook presents the regular monthly overview of recent and expected developments in selected territories, focusing on key economic variables: inflation, GDP growth, leading indicators, interest rates, exchange rates and commodity prices. In this issue, we focus in detail on the industrial producer price index (PPI), which, alongside the consumer price index (CPI), is a key indicator of inflation on the production side of the economy. We also explain the specifics of the PPI, especially in the EU, and present a model simulation indicating the sensitivity of the PPI to a change in oil prices.
Fulltext: PDF; PDF
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Zalužanský Brook Restoration Project
Lašek, Jakub ; Kalibová, Jana (advisor)
This thesis contains restoration project of chosen section of Zalužansky brook in Ústecký kraj. Project is processed at the level of documentation for territorial management according to decree no. 499/2006, of buildings documentation. Theoretical part captures professional literature research dedicated to restorations, spatial planning and buildings documentation. Analytic segment closely defines and characterise location of interest at first, although major part consists of designed restoration measures following requirements for creating a building documentation by mentioned decree. Benefit from this thesis is it's possible usage as a background material for documentation created by authorised engineer for water management and landscape planning.
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Antioxidant, anti-proliferative and immunomodulatory effect of fruits, vegetables and mushrooms in vitro
Doskočil, Ivo ; Havlík, Jaroslav (advisor) ; Orsák, Matyáš (referee)
Recently there has been an increasing interest in discovering of new species of plants and mushrooms which have antioxidant or anti proliferative activity. The interest is caused by the fact that these species have medicinal and food utilization. These properties of plants and mushrooms can be used when dealing with many diseases which may be connected with oxidative stress (inflammatory bowel disease, cardiovascular disease, hypertension, and tumour disease, etc.).
The thesis propounds characteristics of in vitro antioxidant and anti proliferative activity of 19 types of juices and 28 methanol extracts of fruits and vegetables, which are common parts of a diet. In the thesis there are also characteristics of 13 ethanol extracts of edible mushrooms of the order of Polypore (Popyporales). Antioxidant activity was quantifie by 2, 2 diphenyl 1 picrylhydrazyl (DPPH), oxygen radical absorbance capacity (ORAC), and inhibition of nitric oxide (NO) production. Cytotoxicity was measured by MTT (3 (4,5 dimethylthiazol 2 yl) 2,5 diphenyltetrazolium bromide. Immunomodulatory activity was determined by an assay of phagocytic activity of human neutrophil granulocytes. Further a total phenolic content (TPC) and total beta glucan content were investigated; these are considered to be the potentially active constituents participating in mentioned activities.
From the obtained results it is evident that juices (TPC = 1603.2 mg GAE/L; ORAC = 438.5 umol TE/g)
and a bilberry (Vaccinium myrtillus) fruit extract (ORAC 836.6 umol TE/g; DPPH = 404.6 umol TE/g) showed
the highest antioxidant activity of all tested samples of fruits and vegetables. Capsicum (Capsicum L.)
juices (TPC = 642.1 mg GAE/L; ORAC = 127.9 umol TE/g) and a radish (Raphanus sativus L.) extract
(ORAC 724.5 umol TE/g; DPPH = 52.2 umol TE/g) also proved to have the high values of antioxidant activity. From the tested fruits and vegetables the following inhibited to produce a nitric oxide: onion (Allium cepa L) juices (lowered the NO production by 57%), tangerine juices (Citrus reticulata Blanco)(by 52%), broccoli (Brassica oleracea var. botrytis italic) extract (by 21%), and orange (Citrus sinensis Pers.) extract (by 10%). Concerning edible
mushrooms, Lentinus tigrinus (Bull.) Fr. (TPC = 216.2 umol GAE/g of extract), Ganoderma lucidum (Curtis) P. Kras (TPC = 257.9 umol GAE/g of extract), and Royoporus badius (Pers.) A.B. De (TPC = 257.8 umol GAE/g of extract) presented the highest phenolic content. Sparassis crispa (Wulfen) Fr. (117.4 mg/g of extract) had the highest content of beta glucan. Substantial effect on phagocytic activity of granulocytes was noticed in connection with Neolentinus lepideus (Fr.) Redhead & Ginns, Polyporus squamosus (Huds.) Fr., and S. crispa. In connection with the latter of mentioned mushrooms, a moderate inhibitory effect towards HT 29 human colorectal adenocarcinoma cell line
(IC50 = 107 ug/ml of extract) was noticed.
The results indicate that the tested plants and mushrooms can be beneficial when reducing the negative effects of oxidative stress. The oxidative stress has been recognized as a contributing factor to a whole range of diseases and the reduction of the oxidative stress may lead to the decrease in the possibility of the diseases´ progression. The results show the possible favourable effects on the human health. When evaluating the results, the following fact should be taken into consideration; the in vitro tests and screenings are considered to be the first phase of systematic research of the effects and serve for the choice of respondents for further detailed studies.
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