Determination of important azoles in soil solution using CE

The azoles (represented by penconazole, cyproconazole, and tebuconazole in this study) are frequently used agrochemicals to protect various crops against mildew and fungi. They are considered as endocrine disruptors, because they block the biosynthesis (on the level of enzymes inhibition) of biochemicals with steroid structure. Besides targeted impacts, they can partly get into the soil with the rainfall or litter fall and influence/block the biosynthesis of sterols of non-target organisms. In this sense, the risk of disruption of rhizosphere plant-microbial symbiosis and dynamic processes in the soil solution by azoles is of high importance to be evaluated. We have developed an analytical methodology for determination of penconazole, cyproconazole, and tebuconazole in soil solution using capillary electrophoresis with a photodiode array detector at UV-214 nm and acidic electrolyte solution (pH 1.48). The results were also compared with mass spectrometric measurements using mu-TOF mass spectrometry. There approx. 90% of present azoles were bound in the soil solution matrix. The detection limit for these azoles is about 10(-7) mol dm(-3). Because of very low pK(a) of azoles, we have to consider deprotonation of azoles and consequently the high affinity to create complexes with cations. The majority of present azoles in soil solution might form neutral adducts with mono-cations, making them invisible in electrospray mass spectra. [GRAPHICS] .Peer reviewe

Fluorescein isothiocyanate stability in different solvents

Well-established label in biomolecules analysis, fluorescein isothiocyanate is commercially available in its two different isomers with equal fluorescence sensitivity, differing in meta- vs. para-isothiocyanate position. It was found in this study that the stability of the isomers depends on the polarity of different solvents and the pyridine (stabiliser) presence. The lowest stability has fluorescein isothiocyanate in water solvent. In acidic solution, their quinoid (acid) form switches to the lactone form. The p-quinoid form has higher tendency to create dimers and trimers and is less soluble in acetone than the lactone form. [GRAPHICS] .Peer reviewe

Setting up a STAR Tier 2 Site at Golias/Prague Farm

High Energy Nuclear Physics (HENP) collaborations' experience show that the computing resources available at a single site are often neither sufficient nor satisfy the need of remote collaborators. From latencies in the network connectivity to the lack of interactivity, work at distant computing centers is often inefficient. Having fully functional software stack on local resources is a strong enabler of science opportunities for any local group who can afford the time investment. Prague's heavy-ions group participating in STAR experiment at RHIC has been a strong advocate of local computing as the most efficient means of data processing and physics analyses. Tier 2 computing center was set up at a Regional Computing Center for Particle Physics called "Golias". We report on our experience in setting up a fully functional Tier 2 center and discuss the solutions chosen to address storage space and analysis issues and the impact on the farms overall functionality. This includes a locally built STAR analysis framework, integration with a local DPM system (a cost effective storage solution), the influence of the availability and quality of the network connection to Tier 0 via a dedicated CESNET/ESnet link and the development of light-weight yet fully automated data transfer tools allowing the movement of entire datasets from BNL (Tier 0) to Golias (Tier 2).Comment: To appear in proceedings of Computing in High Energy and Nuclear Physics 200

Marketing plan of Müller ČR/SR k.s.

The main goal of the Master's Thesis is to create one year marketing plan for the Müller for year 2012, which will be in accordance with actual market position and development of the Müller company. The Master's Thesis combines theoretical and practical approach and offers a comprehensive look at the issue of marketing plan. The first part deals with the situation analysis, including internal data, research data from research agency AC Nielsen and Porter's model of competing forces. The output of the situation analysis is the evaluation of opportunities and threats, strengths and weaknesses of the company, under which the marketing goals were proposed. Regarding the marketing goals a new strategies of marketing mix were suggested. The proposal of individual activity and their timing is illustrated in the chart of the action plan. The last part summarizes the systems of measurement and controls Design of individual activities and their timing is contained in the Action Plan. At the end are summarized measurement systems and controls

Creation of geoinformatical system for mobile devices

The aim of this thesis is to design and create a complex community geoinformatical system for mobile devices with Android OS. The first part presents currently available software tools, with an emphasis on user friendliness and minimal financial costs. The following sections deal with design of client-server system, selection and processing of data into databases and creating algorithms, ensuring the entire system. Emphasis is also placed on optimalization for mobile devices, bilingualism and user friendliness. The practical outcome and application of ideas from previous parts of this work is the creation of a mobile application DoPřírody!, which allows outdoor users to search the database of natural areas (parks, forests, cemeteries and others) and also is able to navigate the shortest route to the selected destination in real time. For registered users it is possible to rate, comment and edit existing areas and add new ones. The conclusion contains comparation with large map servers, the results of publishing application on the Google Play website and conclusions of testing in the community of users. Keywords: Android, network analysis, server, database, nature, mobile application

Přístup k hodnocení pracovních rizik ve stavebnictví

Import 20/04/2006Prezenční výpůjčkaVŠB - Technická univerzita Ostrava. Fakulta bezpečnostního inženýrství. Katedra (040) bezpečnostního management

Inertial navigation system for mobile phones

Tato práce se zabývá možnostmi zapojení senzorů pro inerciální navigaci (akcelerometr, magnetometr, gyroskop) s co nejvyšší přesností určit polohu uživatele bez pomoci GPS či dalších sítí. S tím je neodmyslitelně spjata nutnost vypořádání se s mnoha zdroji chyb, kterými je tento způsob určování polohy zatížen. V rešeršní části je popsán princip a historie fungování jednotlivých způsobů navigace a současné trendy ve využívání inerciálních metod určování polohy či navigace. Metodická část se zabývá návrhem systému schopného z různých vstupních podmínek určit s co nejvyšší přesností aktuální polohu uživatele. Je řešeno získání potřebných dat ze senzorů i od uživatele a jejich následné zpracování a využití k vykreslení polohy uživatele. Aplikační část poté popisuje praktický postup tvorby výstupní mobilní aplikace pro Android OS a v diskuzní části jsou představeny a vyhodnoceny poznatky z testování jak během tvorby, tak i v závěrečném průzkumu mezi testovacími uživateli. Závěr hodnotí, nakolik se podařilo splnit vytyčené cíle a shrnuje praktické možnosti a limity použitelnosti těchto metod určování polohy v mobilních telefonech. Taktéž předkládá podněty k dalšímu vývoji a zkoumání. Klíčová slova: Mobilní telefony, navigace, GPS, inerciální navigace, Android, mapyThis thesis deals with the possibility of connecting inertial navigation sensors (accelerometer, magnetometer and gyroscope) to determine with the highest precision the position of the user without the help of GPS or other networks. This is inherently connected with the need to deal with many sources of errors, which are connected with this positioning method. The research section describes the principle and history of selected navigation methods and current trends in the use of inertial positioning or navigation methods. The methodical part deals with the design of a system able to determine with the highest accuracy the current position of the user from different input conditions. It is designed to obtain the necessary data from both the sensors and the user and their subsequent processing and use to render the user's position. The application section then describes the practical procedure for creating an Android mobile OS application output and in the discussion part is presented and evaluated the knowledge of testing both during the creation and in the final survey among the test users. The conclusion evaluates the goals and summarizes the practical possibilities and limits of the usability of these positioning methods in mobile phones. It also provides suggestions for further development and...Katedra aplikované geoinformatiky a kartografieDepartment of Applied Geoinformatics and CartographyFaculty of SciencePřírodovědecká fakult

Recruitment, selection and training of employees

Bachelor thesis deals with the process of recruitment, selection and training of employees in Raiffeisenbank, a.s. The main goal is to compare individual criterion mentioned in the theoretical part with the once used in Raiffeisenbank, a.s. Theoretical part summarizes general findings to the given problematics, practical part describes human resources department and their activities like process of of recruitment, selection of employees and also activities related to the training and development of employees. The partial goal is to specify on of the method of selection, and that is assesment centre

Inertial navigation system for mobile phones

This thesis deals with the possibility of connecting inertial navigation sensors (accelerometer, magnetometer and gyroscope) to determine with the highest precision the position of the user without the help of GPS or other networks. This is inherently connected with the need to deal with many sources of errors, which are connected with this positioning method. The research section describes the principle and history of selected navigation methods and current trends in the use of inertial positioning or navigation methods. The methodical part deals with the design of a system able to determine with the highest accuracy the current position of the user from different input conditions. It is designed to obtain the necessary data from both the sensors and the user and their subsequent processing and use to render the user's position. The application section then describes the practical procedure for creating an Android mobile OS application output and in the discussion part is presented and evaluated the knowledge of testing both during the creation and in the final survey among the test users. The conclusion evaluates the goals and summarizes the practical possibilities and limits of the usability of these positioning methods in mobile phones. It also provides suggestions for further development and..