No description available.

½ž ËÙÑÑ ÖÝ Ó ×× ÖØ Ø ÓÒ ½ž½ž Ñ Ó ×× ÖØ Ø ÓÒ The aim of this thesis was to solve and describe the crystal struc- ture of selected inorganic phosphates. Nine different compounds have been studied, including the NASICON type phosphates Co0.5Ti2(PO4)3, Mn0.5Ti2(PO4)3, Na3.215Fe2(PO4)3, the iron(II) diphosphate Fe2P2O7 and hydrates of rare-earth hydrogen diphosphates LnHP2O7·3H2O (Ln = Y, Tb, Dy, Yb) and TbHP2O7·4H2O. While NASICON type phos- phates and rare-earth hydrogen diphosphates have a conventional three- dimensional crystal structure, the structure of α-Fe2P2O7 is incommen- surately modulated and has been described in (3+1)-dimensional super- space. ½ž¾ž ÇÚ ÖÚ Û Ó Ø ÓÒØ ÒØ Ó ×× ÖØ Ø ÓÒ Dissertation is divided in six parts. Part 1 introduce the crystal struc- ture analysis, the concept of aperiodic crystals and the superspace ap- proach. Part 2 describes course of X-ray diffraction experiment and used experimental equipment. The next three parts, Part 3, Part 4 and Part 5, in which the structures of NASICON-type phospates, iron(II) diphos- phate, and rare-earth hydrogen diphosphates are discussed, are the main parts of this work. Part 1. Introduction and Initiation Chapter 2, "Basic principles of crystal structure analysis" con- cerns by fundamentals of crystal structure analysis, i.e. behaviour of X-...

This master thesis is about the significance and the content management of the assimilable nitrogen in grape must. It has been written at the Institute of Post-Harvest Technology and Horticultural Products at the Faculty of Horticulture at the Mendel University in Brno in the academic year 2016/2017. The thesis focuses on the importance of assimilable nitrogen in the grape musts considering their variety and location. In the practical part was the amount of assimilable nitrogen in the grape musts of five white varieties from two regions measured by formaldehyde titration . The amount of assimilable nitrogen was increased by diammonium hydrogenphosphate, ammonium sulfate and four commercial nutrient salts.

PhD thesis focuses on soil biochemistry, namely the effects of organic and inorganic substances on proteolytic ktivity in forest soils. The thesis is composed of several impacted journal articles and two manuscripts. Selected organic compounds feature L- and D-tartaric acid, phenolics, proteinogenic and non-proteinogenic amino acids, auxins and cytokinins, whilst inorganic substances are represented by salts. Furthermore, an article dealing with the effects of different forest management practises on soil enzymatic ktivity (including proteases) is adjoined. Its aim is to monitor the effect of forest regenerative elements (forest stand gaps) on enzymatic ktivity, whereas the intervention into forest ktivity changes the moisture and thermal conditions of the site. The results show that out of the organic substances tested L- and D-tartaric acid, proteinogenic and non-proteinogenic amino acids and auxins have a positive effect on the proteolytic ktivity. Conversely, phenols and cytokinins acted as inhibitors. Soil salinization also had a negative effect on proteolytic ktivity of forest soils. The Influence of forest management through forest regenerative elements on soil protease ktivity was not detected. Potential urease ktivity was the only enzyme that reacted to the change of climatic conditions of forest habitat; however, ktiv not a principal topic of this work.

The aim of this thesis was to compared physical, chemical and sensory parameters of two groups Vysočina salami. First group is a control group with salt content 2 %. Second group is experimental group with a reduced content of salt 1,5 %. The salami were produced at Mendel University in Brno, where all parameters were also measured. The results showed that experimental group had higher water activity during maturing. Accordingly, other parameters as colour, texture and pH were different. Instrumental analyses showed lighter colour compared to the control group. Also salami were more tender and pH was higher. No statistical significant differences were found between groups in sensory evaluation.

This diploma thesis is focused on meat products and salt content. The theoretical part defines and divides meat products according to the legislation and the technology of preparation. Single steps of meat production are also described. There are also mentioned methods of meat products evaluation in this part. Furthermore, the basic facts of salt and health complications related to its excessive intake are here also described. In the practical part are evaluated quality differences in mortadella sausage of two different recipes. The results of analysis show that it is possible to produce mortadella sausage with reduced salt content 1,4 % (instead of 2%) and without significant influence on quality. The questionnare survey shows that men consume meat product more often than women. And the most of the respondents buy meat products in supermarkets. Salt content on the food label is monitored only by a small amount of respondents. For this reason, further education needs to be done.

The diploma thesis “Comparison of quality parameters of Wiener frankfurter in accordance to manufacturing formula” considers meat products in relation to content of salt. The theoretical part of the thesis includes characteristic of meat products and related legislation. This part considers Wiener frankfurter and characterizes ingredients necessary for their production. Moreover, individual steps of the manufacturing process of the Wiener frankfurter are described in this part and it characterizes methods used for evaluation of quality and health safety. In the practical part of the thesis differences among individual variants with various content of salt in Wiener frankfurter (1,4 %; 1,6 %; 1,8 %; 2,0 %) were evaluated. There was used chemical analysis, colour measuring of surface- and cut of sausages before and after heat treatment. Besides also texture was evaluated. Regarding the sensory analysis all variants of sausages were rated positively, statistically significant difference was found among intensity of salinity.

<p> Evaporation was calculated for a subarctic beach ridge, near Churchill, Manitoba, using the energy balance approach. Energy balance calculations for the measurement season revealed an average Bowen ratio, β, of 0.68, with a value of 1.00 representing α' (the evaporability parameter). Fifty-seven percent of the net radiation was utilized by the evaporative heat flux over this tundra surface. Regressions were used to determine the most likely combination of environmental variables responsible for the behaviour of evaporation. Surface soil moisture remained relatively constant throughout the summer measurement period and soil temperatures appeared to be unrelated to evaporation. Air temperature proved to be insignificant to the evaporation flux, and net radiation alone could only account for 54% of the variability. The combination of the net radiation and the wet and dry bulb temperature depression at 1 m accounted for 88% of the variability of the evaoorative heat flux. The mean α' for a site is assumed to be controlled by the surface type in simplified variations of the combination model. The conclusion has been drawn from this study that the variability of α' can be accounted for by variable atmospheric humidities as well as net radiation. The importance of this atmospheric control on the rate of evaporation is emphasized.</p> / Thesis / Master of Science (MSc)

Johann Joachim Quantz, am 30. Januar 1697 im niedersächsischen Oberscheden geboren und am 12. Juli 1773 in Potsdam gestorben, gilt nicht nur als einer der bedeutendsten Flötenvirtuosen seiner Zeit, sondern hatte sich auch einen großen Namen gemacht als Lehrer des Flöte spielenden Preußenkönigs Friedrich II. und als Verfasser des theoretischen und selbst noch für die heutige Musikforschung wichtigen Grundlagenwerkes Versuch einer Anweisung die Flöte traversiere zu spielen (1752)1. Überdies hatte er ein umfangreiches OEuvre an Kompositionen – Konzerte und kammermusikalische Werke vornehmlich für sein Instrument – geschaffen, die zumeist für seinen königlichen Schüler bestimmt waren, an dessen Hof er seit Dezember 1741 lebte und wirkte. Zwar gehörten die Jahre am preußischen Hof für den Flötenmeister zu den wichtigsten seines Lebens und Schaffens, jedoch war seine vorangegangene Anstellung – seit 1718 als Mitglied der so genannten »Polnischen Capelle«2 und seit 1728 Flötist in der Hofkapelle – am Hofe August II. (des Starken) in Dresden für seine Entwicklung und Reife entscheidend. Dort hatte er nicht nur Gelegenheit, die hohe künstlerische Qualität der vorzüglichen Hofkapelle hauptsächlich unter Leitung von Johann Georg Pisendel (1687–1755) zu erleben und späterhin mitzugestalten, sondern sich frühzeitig durch gründlichen Unterricht beim ersten Flötisten der Königlichen Kapelle, Pierre Gabriel Buffardin (1689–1768), ausbilden zu lassen und sich selbst zu einem herausragenden Musiker zu entwickeln. Während einer dreijährigen Studienreise (1724–1727) nach Italien, Frankreich und England machte er sich mit den bekanntesten Instrumentalisten und Gesangskünstlern bekannt, versuchte, sich auch kompositorisch weiter zu bilden (u. a. Unterricht bei Francesco Gasparini) und studierte mit Eifer die Eigenheiten und Besonderheiten des italienischen und französischen Nationalstils.

Adverse reactions to metals is relatively frequent in sensitive individuals, and may lead to the development of various diseases, such as lichen planus and lichenoid reaction and was also described effect of amalgam to the pathology of autoimmune diseases. In sensitive patients with known reactions to metals leads to atrophy of the oral mucosa and discomfort (burning, cutting, excessive salivation). Adverse effects of dental materials are described as an allergic reaction type IV delayed hypersensitivity. It disrupt the immune system, increased vascular permeability, tissue is often damaged by chronic inflammation and it is also activated antigen- nonspecific component of immunity. Monocytes are the key cells of the immune system, which act as antigen presenting cells, in particular after conversion in the tissues into macrophages are directly involved in the activation of immune responses and their stimulation is therefore crucial for the development of adverse reactions to dental materials. In the thesis was measured cytokine production by monocytes after stimulation with metal salts. To determine the extent of the patients' responses to the metals was used lymphocyte proliferation assay (MELISA® ), which was developed and patented in Sweden. We compared lymphocyte proliferation after stimulation...