National Repository of Grey Literature 13 records found  previous11 - 13  jump to record: Search took 0.01 seconds. 
Využití NIR spektroskopie při kontrole falšování kozího mléka
Ptáčková, Eva
The aim of the thesis was to find out whether NIR spectroscopy is a suitable method for adulteration control of cow and goat milk. Also to which concentration level the method is still effective was sought. Theoretical part summarizes information about the requirements for goat milk, its composition and processing possibilities. It also contains information about food adulteration and the relevant legislation. Infrared spectroscopy is theoretically described, particularly NIR spectroscopy. The experimental part describes the procedure of qualitative analysis using NIR spectroscopy, the method of evaluation and its results. Different samples of goat milk adulterated with various proportions of cow milk were compared. Results were evaluated using discriminant analysis. NIR spectroscopy has been demonstrated as a method suitable for detecting goat milk adulteration.
The meaning of social networks in teenagers' lives.
This bachelor thesis deals with the actual impact of so-called social networks (or social utilities) on lives of modern high school students. The subject matter of this work is basically concerned with the usage of these internet social networks and the proximate consequences of it within teenagers? everyday (?real?) lives. The aim of this bachelor thesis is to describe how and to what extend being a registered user and active member of these internet social utilities may interact with self-perception and the perception of others, as well as how much it may affect personal and social status of each individual. As a main research method, the authoress has used questioning methods and qualitative analysis of gathered data in line with the grounded theory as expressed, for example, by Strauss and Corbin (1999). The outcome of this research work shows inconsistence of the role of internet social networks as a means of communication, as well as the significance of its impact on modern teenagers? lives and the way of their thinking.

National Repository of Grey Literature : 13 records found   previous11 - 13  jump to record:
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4 Ptáčková, Eliška
11 Ptáčková, Eva
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