National Repository of Grey Literature 1,637 records found  1 - 10nextend  jump to record: Search took 0.10 seconds. 


Derivation of the network properties from the energetic model of .sub.m-./sub. port
Braun, Jaromír ; Žilka, Zdeněk ; Berka, Zbyněk
Flow of energy in the complex systems is the basic phenomenon of real communication systems. This phenomenon have to be taken into account in the theory of "black box model" of arbitrary dynamic system.

Awareness of vegetarians about deficit of certain nutritions in vegetarian diet and about ways to compensate them
VORLÍČKOVÁ, Markéta
This thesis deals with vegetarians' awareness of the lack of specific nutritional substances in the vegetarian diet and their compensation. The aim is to explore whether vegetarians have sufficient information about the nutritional composition of their diet, whether they are interested in researching this information and whether the information is available and sufficient. I also looked at whether people with this eating preference are preventing potential nutritional deficits and subsequent health problems. There were designated the following three research questions: "How often and where do most vegetarians get information about a meatless diet?", "How can you achieve a full fledged vegetarian diet?" and "What is vegan awareness on the potential deficiencies in their diet, and how do they try avoid these?". In the theoretical part I deal with vegetarianism as a lifestyle, vegetarianism and its subgroups, the reasons for going to this way of life, the composition of a vegetarian diet with a focus on nutrients that may be deficient, vegetarianism and its impact on the body at different stages of development and ultimately the impact of a meatless diet on human health. The practical section is an elaborated form of qualitative research, specifically I chose semi-structured interviews. I collected the data from the interviews. The interview contained fourteen or fifteen questions, and women were also questioned about the pregnancy period. I asked questions regarding the issue of vegetarianism, veganism or raw foodism. I was interested in individual eating habits, nutrition knowledge and personal experience of the respondents. The data was collected between January 2014 and March 2014. The research group consisted of 6 respondents. The group was made up of women and men in the age range from 20 to 30 years. Among respondents there were vegetarians, vegans and raw foodists and the period of time in which they have been eating this way is different for every person. All respondents were familiar with the purpose of providing an interview and agreed to the publication. The interviews I conducted in person and were recorded on a dictaphone mobile phone. The results of my work show that most respondents do research about a meatless diet. They logically state that most intensive research took place while they were switching their eating habits, but now they still keep finding out new information. The most commonly used way was the Internet, specifically through websites such as www.soucitne.cz or www.vegan-fighter.com. Other sources used are books, articles, studies, and information received from friends or family members. The respondents argue that because the information was obtained this way, their diet is balanced. They are often trying to maintain diversity in their diet, for example, consume legumes and combine various foods such as legumes with cereals. Raw foodists state that they often consume sprouts, seeds, nuts, and of course a large amount of raw vegetables and fruits. All Vegans and Raw foodists know about the possible lack of vitamin B12, and some for this reason, use supplements. Also mentioned are supplements or protein complex supplements designed specifically for vegans.

Synthesis of unsymmetrical derivatives of azaphthalocyanines and their complex formation with pyridine
Žižkovská, Jana ; Zimčík, Petr (advisor) ; Miletín, Miroslav (referee)
1. Summary Synthesis of unsymmetrical derivatives of azaphthalocyanines and their complex formation with pyridine Mgr. Jana Žižkovská Department of Pharmaceutical Chemistry and Drug Control Faculty of Pharmacy in Hradec Králové, Charles University in Prague I prepared the mixture of six possible products (AAAA, AAAB, ABAB, AABB, ABBB, BBBB) using a statistical condensation starting from two different precursors - 5,6- bis(diethyamino)pyrazine-2,3-dicarbonitrile (A) and 5-diethylamino-6-[2-(4,4'- dimethoxytrifenymethoxy)-ethylamino]pyrazine-2,3-dicarbonitrile (B). Only compound of AAAB type was isolated by column chromatography from the mixture, purified and was characterized by NMR, IR, MS, UV-VIS spectroscopy. The precursor (B) was changed - 5-diethylamino-6-[2-(4,4'-dimethoxytrifenymethoxy)- ethylmethylamino]pyrazine-2,3-dicarbonitrile - and the statistical condensation was done the same way. Unfortunately the desired AAAB product was unstable and therefore the work was finished. In another part of this work I have studied a formation of proton-transfer complex with two molecules of pyridine. Three different AzaPc with hydroxy groups on periphery were used in this study. The influence of hydroxy groups on the rate constant was not confirmed. Then I used only one AzaPc -...

The endocrine function of adipose tissue and its importance for initiation and development of insulin resistance and diabetes
Haluzík, Michal ; Schreiber, Vratislav (advisor) ; Marešová, Dana (referee) ; Šeda, Ondřej (referee)
Endocrine production of adipose tissue is a very complex process affected by numerous endogenous and exogenous stimuli. Peroxisome proliferator-activated receptors-alpha (PPAR-) are important modulators of metabolic processes which can also affect endocrine function of adipose tissue. Recently, numerous novel factors produced by adipose tissue with important metabolic effects were identified. Some of them can directly bind PPAR receptors. One of the examples of these factors is fatty acid binding protein 4 (FABP4) which can directly bind PPAR receptors and indirectly modify its activation by changing availability of endogenous PPAR ligands -free fatty acids. We hypothesized that the mechanism of action of PPAR receptors to metabolic processes may partially lie in their complex interaction with adipose tissue-derived hormones. The unraveling of these interactions may have important consequences in finding approaches to treat patients with type 2 diabetes mellitus. (...) In summary, our data show an important role for the interplay of PPAR activation and endocrine function of adipose tissue in metabolic regulations which may have important clinical consequences.

Structure characterization of glucanes by 13C NMR spectroscopy
Spěváček, Jiří
The principles of high resolution solid state 13C NMR spectroscopy are explained in this contribution. Some possibilities of this method in the structural characterization of glucans and their derivatives are demonstrated on examples of cellulose, chitin, chitosan and chitin/glucan complexes.

Fatigue strength and life of real structures under combined random loading
Svoboda, Jaroslav ; Fröhlich, Vladislav ; Kraus, V.
An investigation of fatigue strength and life usually joined with experiments, which are made using small testing specimens. This is the reason why majority of numerical methods used for fatigue of materials was derived basing on those experiments under kinds of loading. It is rather difficult to apply these methods for real structures loaded by random combined processes in service. The contribution discusses the problem and shows its complexity on an example.

Measurement the induction of magnetic field around an applicator for magnetotherapy
Bartušek, Karel ; Gescheidtová, E. ; Steinbauer, M.
The paper deals with measuring magnetic induction by imaging techniques based on magnetic resonance (MR) and describes experimental results od mapping the magnetic induction of a dermatological applicator for magnetotherapy performed by MR imaging techniques. The results are compared with theoretical calculation and with measurement carried out with an ordinary magnetometr. The conclusion derived from the measurement will be used in the design of a new applicator with complex electronic control of magnetic field.

Appraisal and assessment of development options immovable manufacturing facility open market value
Hanzlovská, Nikola ; Gardášová, Alena (referee) ; Hlavinková, Vítězslava (advisor)
The main objective of this diploma thesis is to determine the usual price for a manufacturing facility, by using valuation methods. A secondary aim was to determine best possible use of the building and the development possibilities, according to the results from valuation. Diploma thesis is divided to theoretical and practical part. In theoretical part are detailed valuation methods divided to two main parts, the valuation by price regulation and the market valuation. In the beginning the pratical part describes the location and property. Furthermore I applied valuation method for manufacturing complex. At the conclusion is recapitulation and analysis of results, where are considered diferences and the usual price is set. The last chapter is devoted to the best use of complex and consideration of development possibilities.

Securitization- A critical assessment in the light of the financial crisis
Marinova, Milena ; Krupová, Lenka (advisor) ; Marek, Petr (referee) ; Doubravský, Jiří (referee)
My dissertation thesis provides a comprehensive analysis of the principles of securitization techniques, of their attendant shortcomings, their regulatory treatment and the recent proposals for reducing complexity in accounting standards with relevance for securitizations. The explosion of securitization and related innovative credit risk transfer products largely expanded the magnitude and diversity of issuers, investors and securities. With this expansion numerous market participants began to wrongly believe that risk was not only shared more widely, but also that it disappeared from the system altogether. The application, or to be more precise, the misapplication of securitization in the mortgage market had fatal consequences for the financial sector worldwide. Before securitization, sub-prime mortgage lenders retained the loans that they originated on their balance sheets and therefore cared about their credit quality. Securitization techniques and related innovative financial instruments enabled the export of sub-prime mortgage structural problems from the United States globe-wide via the financial intermediaries. More over, securitization techniques and related credit risk transfer products enabled single banks to reduce their individual risk while at the same time transferred new and greater risks to the financial system. Meanwhile a lot was written on the causes for the recent financial crisis. In most cases inadequate ratings provided by the credit rating agencies and different principal agent problems were addressed. I present both for completeness in my work. However, I argue that not only the credit rating agencies are to blame for the inadequate reflection of securitization and related financial innovations and subsequently for the financial turmoil. The international and national financial supervisors in fact supported the credit rating agencies to further establish their businesses. What turned obvious during and after the financial turmoil started mid-2007 is that financial regulation failed to reach its main goal - ensuring stability of the financial system. It failed despite of the "regulatory achievements within Basel II" elaborated over the past ten years. In particular, securitization and related credit risk transfer products were not adequately treated in Basel II. Securitization-related products such as Credit Derivatives on Securitization Underlyings and numerous other complex financial innovations, as presented in my thesis, were not even thought of in Basel II. In fact, Basel II turned to do little to make the financial system more resilient. The need for further revisions in banking regulation is currently more than obvious. Furthermore, it is time to ask if the developments in Basel II are the right way to address the current risks within the financial system and hence if Basel II is the right way of banking regulation and supervision altogether. With the development of both Basel Accords (Basel I and Basel II) capital ratios became the center of banking regulation. However, capital ratios are obviously not sufficient as a measure for a systemic financial stability. These questions arise at least when financial stability and soundness are still the intended objectives and believed to be ensured through Basel II. My merits in this dissertation work root in the multi-facet analysis of securitization techniques that I provide. Up to date a comparable analysis of securitization techniques which addresses the wide spectrum of securitizations' issues - such as (i) their treatment and the related attendant flaws within the regulatory framework Basel II, (ii) the various microeconomic deficiencies related to securitizations, and (iii) the implicit macroeconomic threads of exporting credit risk and de-balancing financial stability through securitization techniques - has not been provided in the comprehensive way I built up my analysis. As a basis for my analysis, I provide a new classification of the characteristics of securitization techniques which were pre-crisis wrongly perceived as benefits. I analyze the reasons for the turmoil in the financial markets in their interplay and complexity and consider securitization techniques as a key driver for the financial crisis. I comprehensively criticize the current regulatory treatment. I present in detail why the recent financial crisis should be considered a clear regulatory failure due to the up to date short-sightedness of financial regulation. Through providing partial solutions and professional author's assessment of selected regulatory and accounting changes to securitizations I deliver an expert's contribution to the topic. My conclusions are that securitization markets, as they have been operating until today, brought a negative net macroeconomic effect which has been largely damaging to the global economy. I argue that international and national financial supervisors established an inadequate framework for financial regulation and supervision, and among other failures, even supported credit rating agencies to further establish their businesses. Further on, I show that early warning indicators of systemic risk in the financial sector and signs of the coming turmoil were irresponsibly ignored at the time they were perceived. What turned obvious during and after the recent financial turmoil is that capital regulation failed to reach its main goal -- ensuring stability of the financial system. In particular, securitization and related credit risk transfer products were adequately treated neither in Basel I nor in Basel II. Finally, I conclude that capital ratios as established with the development of both Basel Accords are not sufficient as a central measure for banking regulation and ensuring systemic financial stability.