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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
961

Využití systémů Content Management ve státní správě / The applications of Content Management Systems in e-government

Foltýn, Michal January 2011 (has links)
Content management systems allow easy creation and management of web pages even without expert skills. Thesis describes application of these systems at Customs Administration of Czech republic and proposes serie of steps required to migrate web pages from one system to another. Framework for developing web applications enables to integrate these applications into content management system and extend its functionalities.
962

Aplikácia pásovej spektrálnej regresie v ekonomických problémoch / Application of band spectrum regression in economic problems

Zubaľ, Andrej January 2015 (has links)
In recent years, there has been a rise of interest in the use of various spectral methods in economics and econometrics. These methods have their theoretical background in mathematics, particularly in Fourier analysis. The less tradi- tional and relatively new branch of methods stems from the so-called wavelet analysis. Wavelet methods are believed to have a wide applicability in the anal- ysis of economic time series. The motivation for this thesis is to introduce these methods and apply them in the analysis of economic problems, thereby showing their usefulness within the economic context. Particular attention is paid to band spectrum regression, which allows for decomposition of economic relation- ships into different frequency components. In this work, we use wavelet band spectrum regression, among other wavelet methods, to analyze the relation- ship between realized and implied volatilities for the price of crude oil. Second application is from the field of macroeconomics. We analyze the relationship between unemployment and labor productivity growth for four major European economies. 1
963

Komponenty pro vývoj firemních aplikací na platformě Android / Android components for business applications

Tupec, Pavel January 2015 (has links)
Today, in the era of mobile technology boom, more and more companies equip their employees working in the field (salesmen, insurance agents, service workers etc.) with mobile applications in order to improve the efficiency of their work. On the market, there exist several universal applications which, however, require using some middleware, or they cannot be sufficiently modified to the customer specific needs. In this case comes the development of custom mobile application. The aim of this work is to analyze the requirements for such applications and based on this analysis propose a set of reusable components that will facilitate the development of these native applications on the Android platform. This work will also include a pilot application demonstrating the use of individual components on the sample data. Powered by TCPDF (www.tcpdf.org)
964

Využití aplikací algebry v přírodovědných oborech na 2. a 3. stupni školy / Use of applications of algebra in sciences at secondary schools

Novotný, Tomáš January 2014 (has links)
The MA thesis focuses on the strategies pupils use when solving mathematical problems involving systems of linear equations in other subjects, namely in physics and chemistry. Drawing on the results of the experiment, the aim of the thesis is to propose ways in which these problems can be used in math lessons. The first part of the thesis is dedicated to those branches of physics and chemistry in which systems of linear equations are used. In the following part, the experiment itself is described. Divided into two parts, the first part of the experiment focuses on pupils at lower secondary schools, the other on pupils at upper secondary schools. The final part of the thesis is dedicated to suggesting how problems from physics and chemistry can be used in math lessons when introducing and practising systems of linear equations. Powered by TCPDF (www.tcpdf.org)
965

Hmotnostní spektrometrie v proteomice: strukturní biologie a klinické aplikace / Mass spectrometry in proteomics: structural biology and clinical applications

Pavlásková, Kateřina January 2011 (has links)
Mass spectrometry (MS) is a rapid, specific and very sensitive analytical method with a broad spectrum of proteomic applications such as protein identification and sequencing, 3D protein structure characterization or study of protein-protein interaction. The introduction of two ionization techniques in late 1980's that are able to ionize the large biomolecules such as proteins, oligosaccharides or nucleic acids with no or low fragmentation has started the rapidly expanding field of MS-based proteomics. The presented thesis was aimed at the application of mass spectrometric approaches to answer several proteomic questions. Firstly we have employed the chemical cross-linking in combination with MS analysis to solve the 3D structure and protein-protein interactions of three model systems: (1) homodimeric human regulatory protein 14-3-3, (2) model of 14-3-3 and regulatory domain of tyrosine hydroxylase, and (3) system of two membrane proteins, cytochrome P450 2B4 and cytochrome b5, involved in xenobiotics biotransformation. This approach works in aqueous solutions under physiological conditions and thus preserves native structure of the investigated proteins. The second part of the thesis was focused on MS identification of proteins/peptides in fungal spores of Aspergillus and Pseudallescheria...
966

Horizontal transfer of methoprene and its effect on Tribolium castaneum (Herbst) individuals and populations

Tucker, Angela Marie January 1900 (has links)
Doctor of Philosophy / Department of Entomology / James F. Campbell / Kun Yan Zhu / Aerosol applications of reduced risk insecticides such as synergized pyrethrin and insect growth regulators (IGR) are part of food industry integrated pest management programs. Since aerosols cannot penetrate into hidden areas exploited by pests such as the red flour beetle, Tribolium castaneum, the potential for these insecticides to effect beetle populations was evaluated. Because IGRs do not cause immediate mortality, the potential of horizontal transfer for an IGR from treated to untreated individuals was also examined. Results showed that when untreated T. castaneum, larvae or pupae, were added to flour containing methoprene, IGR, treated larvae, pupae or adults, the untreated individuals exhibited evidence of methoprene exposure (external deformities and reduced survival). Evaluation of the different mechanisms of transfer indicated that contact with methoprene treated individuals or flour that had been in contact with treated individuals may be the primary method of methoprene transfer. Since aerosols are often applied as a combination of IGR and pyrethrin with a carrier, the effect of these components was evaluated. Applications of synergized pyrethrin caused knockdown of adults but affected adults recovered and progeny production was not effected. Exposure of eggs to these insecticides reduced egg hatch. Food material accumulations inside food facilities can potentially increase or reduce insecticide efficacy. Evaluation of different flour residue levels, representing different sanitation levels, revealed that sanitation alone reduced immature development. As flour residue depths increased more individuals developed into adults but very few developed in the insecticide treatments. Food facilities that use aerosol insecticides apply them at regular intervals, so the cumulative effects of these treatments were considered. Experiments evaluating repeated insecticide exposures indicated that the direct morality from synergized pyrethrin not the horizontal transfer of methoprene was the primary factor in population reduction. Overall findings suggested that methoprene is highly mobile between different surfaces. Exposure of untreated individual beetle larvae to treated larvae or pupae or to flour that has been in contact with exposed beetles can have detrimental effects on development or survival, but these effects may be highly variable and even in cumulative exposures the overall level of population suppression is limited.
967

End-user training of post-graduate students in the use of CD-ROM database with special reference to the University of the North

20 November 2014 (has links)
M.A. (Information Science) / This research investigated the problem of multiple bibliographic interfaces that end-users face when conducting searches. A situation analysis was conducted which provided a profile of the situation under investigation. Based on the results of the analysis an end-user training programme for adoption by subject reference librarians at the University of the North Library with regard to bibliographic CD-ROM databases is formulated. This programme is proposed to address problems that end-users experience with these databases and in the process to improve their search abilities. Finally, areas for further investigation with regard to the situation, learner and learning situation are also suggested.
968

The chitinolytic enzyme system of the compost-dwelling thermophilic fungus Thermomyces lanuginosus

Zhang, Meng January 2014 (has links)
Submitted in complete fulfillment for the Degree of Master of Technology (Biotechnology), Durban University of Technology, Durban, South Africa, 2014. / Chitin, a highly insoluble 1,4- -linked polymer of N-acetyl- -D-glucosamine, is the second-most abundant bio-polysaccharide in nature after cellulose. Most chitinolytic fungi are known to produce more than one kind of chitinase. The recent sequencing of the Thermomyces lanuginosus SSBP genome by our group has revealed four putative family 18 chitinases. In this study, three novel chitinase genes (chitl, chit2 and chit3) and the previously reported chit4 gene were cloned from Thermomyces lanuginosus SSBP and their gene structures were analysed. chit3, encoding a 36.6 kDa protein, and chit4, encoding a 44.1 kDa protein, were successfully expressed in Pichia pastoris. The recombinant Chit3 and Chit4 enzymes exhibited optimum activity at pH 4.0 and 5.0 and at 40oC and 50°C, respectively. Chit3 was stable at 40oC and retained 71% of its activity at 50°C after 60 min, while Chit4 was stable at 50°C and retained 56% of its activity at 60°C after 30 min. Both enzymes produced chitobiose as the major product using colloidal chitin, chitooligosaccharides and shrimp shell powder as substrates. Of the fungal strains tested, Chit3 displayed antifungal activity against Penicillium sp. and Aspergillus sp. This is the first report on the multi-chitinolytic system of T. lanuginosus and enzyme characterization has shown the potential of the enzymes to be used in degradation of the under-utilized bio-resource chitin. / PDF Full-text unavailable. Please refer to hard copy for Full-text / M
969

A Search-Based Approach for Robustness Testing of Web Applications

Gurram, Karthik, Chappidi, Maheshwar Reddy January 2019 (has links)
Context: This thesis deals with the robustness testing of web applications on a different web browser using a Selenium WebDriver to automate the browser. To increase the efficiency of this automation testing, we are using a robustness method. Robustness method is a process of testing the behaviour of a system implementation under exceptional execution conditions to check if it still fulfils some robustness requirements. These robustness tests often apply random algorithms to select the actions to be executed on web applications. The search-based technique was used to automatically generate effective test cases, consisting of initial conditions and fault sequences. The success criteria in most cases: "if it does not crash or hang application, then it is robust". Problem: Software testing consumes a lot of time, labour-intensive to write test cases and expensive in a software development life cycle. There was always a need for software testing to decrease the testing time. Manual testing requires a lot of effort and hard work if we measure in terms of person per month [1]. To overcome this problem, we are using a search-based approach for robustness testing of web applications which can dramatically reduce the human effort, time and the costs related to testing. Objective: The purpose of this thesis is to develop an automated approach to carry out robustness testing of web applications focusing on revealing defects related to a sequence of events triggered by a web system. To do so, we will employ search-based techniques (e.g., NSGA-II algorithm [1]). The main focus is on Ericsson Digital BSS systems, with a special focus on robustness testing. The main purpose of this master thesis is to investigate how automated robustness testing can be done so that the effort of keeping the tests up to date is minimized when the functionality of the application changes. This kind of automation testing is well depended on the structure of the product being tested. In this thesis, the test object was structured in a way, which made the testing method simple for fault revelation and less time-consuming. Method: For this approach, a meta-heuristic search-based genetic algorithm is used to make efficiency for robustness testing of the web application. In order to evaluate the effectiveness of this proposed approach, the experimental procedure is adapted. For this, an experimental testbed is set up. The effectiveness of the proposed approach is measured by two objectives: Fault revelation, Test sequence length. The effectiveness is also measured by evaluating the feasible cost-effective output test cases. i Results:The results we collected from our approach shows that by reducing the test sequence length we can reduce the time consuming and by using the NSGA-2 algorithm we found as many faults as we can when we tested on web applications in Ericsson. Conclusion: The attempt of testing of web applications, was partly succeeded. This kind of robustness testing in our approach was strongly depended on the algorithm we are using. We can conclude that by using these two objectives, we can reduce the cost of testing and time consuming.
970

O princípio das gavetas de Dirichlet - problemas e aplicações / The Dirichlets principle - problems and applications

Pacifico, Thiago Mauricio 31 May 2019 (has links)
O princípio das gavetas de Dirichlet é um resultado matemático baseado numa proposição relativamente simples: se desejamos distribuir N +1 objetos em N gavetas, necessariamente alguma das gavetas conterá pelo menos 2 objetos. Apesar de parecer pouco relevante, devido a sua obviedade, esse teorema constitui uma ferramenta bastante importante na prova de outros resultados matemáticos. O presente trabalho, demonstra o Princípio das Gavetas em duas versões, uma mais simples e a outra mais geral, exibe algumas aplicações que evidenciam a sua importância como ferramenta de prova, e ao mesmo tempo, utiliza da sua simplicidade para motivar o estudo do próprio resultado assim como o de outros conceitos matemáticos. O banco de questões separado por níveis de dificuldade e o plano de aula têm o propósito de subsidiar o trabalho do professor no desenvolvimento desse interessante resultado matemático. / The Dirichlets drawers principle is a mathematical result based on a relatively simple proposition: if we wish to distribute N+1 objects in N drawers, necessarily some of the drawers will contain at least 2 objects. Although it seems insignificant due to its obviousness, this result is a very important tool in proving other mathematical results. The present work proves the Dirichlets principle, also know as pigeonhole principle in two versions, one simpler and the other more general, exibits some applications that show its importance as a tool of proof, and at the same time uses its simplicity to motivate the study of the own result as well as other mathematical concepts. The set of problems separated by difficulty levels and the lesson plan are intended to subsidize the teachers work in the development of this interesting mathematical result.

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