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Analysis of long-term changes of vegetation indices
Beránková, Petra ; Štych, Přemysl (advisor) ; Jedlička, Jan (referee)
The work deals with the issue of research of long-term changes of vegetation indices concretely indices NDVI (Normalized Difference Vegetation Index). The first part is devoted to detailed analysis of domestic and foreign literature, which deals with the calculation and interpretation of vegetation indices values. The main theme of this work is to explore relation between temperature and NDVI changes and precipitation and NDVI changes over the period 1982-2006. These connections are examined using correlation and regression analysis. Attention is concentrated to the Czech Republic, Central Europe and Finland. The average value of NDVI in Central Europe increased over the study period of 0,0012 per year. The average value of NDVI in Czech Republic increased of 0,0014 per year. On the territory of the Czech Republic increased the value of NDVI in three seasons (spring, autumn and winter). In the summer, in some areas, decreased NDVI values. Correlation coefficients between NDVI and temperature and NDVI and precipitation appeared consistently the highest in the spring. Keywords: NDVI, vegetation indices, temperature, precipitation, Central Europe, Czech Republic
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Production of secondary metabolites in plant tissue cultures
Beránková, Petra ; Siatka, Tomáš (advisor) ; Kašparová, Marie (referee)
Production of secondary metabolites in plant tissue cultures The influence of ammonium cerium(IV) nitrate (0.055, 0.55, 5.5, 55 and 275 mg/l of medium) as a potential elicitor of scopoletin production in cell suspension cultures of Angelica archangelica L. was investigated. The cultures were cultivated in a liquid Murashige and Skoog nutrient medium supplemented with 2 mg/l 2,4-dichlorophenoxyacetic acid and 0.4 mg/l benzylaminopurine in the light or dark. The content of scopoletin was determined by high performance liquid chromatography with fluorometric detection. The elicitor treatment improved production of scopoletin. In the dark-grown cultures, the highest amounts of scopoletin in the medium as well as in cells were reached with a concentration of 0.55 mg/l, in comparison with non-elicited culture. In the light-grown cultures, the content of scopoletin was increased only in the medium with an elicitor concentration of 0.055 mg/l.
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Volatile metabolites of food additives and food supplements - review
Beránková, Petra ; Šatínský, Dalibor (advisor) ; Matysová, Ludmila (referee)
Charles University in Prague, Faculty of Pharmacy in Hradec Králové Department of Analytical Chemistry Candidate: Petra Beránková Supervisor: doc. RNDr. Dalibor Šatínský Ph.D. Supervisor - consultant: Mgr. Kseniya Dryahina Ph.D. Title of bachelor thesis: The Volatile Metabolites of Food Additives and Supplements Most of the food available in supermarkets contains food additives that are used to improve the appearance, smell and taste. Additives undergo metabolism in the human body undergo metabolism and can influence the health of the individual. The aim of this thesis is to explore the possibility of establishing volatile metabolites present in human breath that arise as result of metabolism of food additives and supplements. Experiments focus on quantitative pharmacokinetics of volatile metabolites after ingestion of a substance selected from the group of artificial sweeteners and supplement. Food sweetener aspartame (E 951) used to achieve a sweet taste in foods and beverages was chosen as a model example. Aspartame is converted in the body to methyl alcohol, formic acid and phenylalanine. Therefore, we followed the methyl alcohol content in the breath of healthy volunteers. Breath analysis was performed using SIFT-MS (selected ion flow tube mass spectrometry) with the Profile 3 instrument. The...
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Constructing Participatory Spaces: Involving Citizens into the Urban Development Planning from the View of Planners
Beránková, Petra Alexandra ; Mička, Pavel (advisor) ; Veselý, Arnošt (referee)
The work deals with constructing of participatory spaces in the process of urban development planning. The topic of involving citizens into planning is viewed from the point of planners. A concept of participation in this text is conceived in the sense of invented spaces built from above. The research perspective is an interpretative one, anchored in the constructivist epistemology. Therefore the main question is: How do planners reflect involving citizens in the planning? Firstly, the authoress demonstrates the importance of her topic by putting it into the context of wider social dynamics related to the crises of representative democracy and emerging of sub-politics. She reveals that the trend of building participatory opportunities is strengthening. The important question is formulated: How is the role of public in the strategic planning constructed? On the base of analytical induction of semi-structured interviews with planners, the authoress creates her own typology of ideal-type approaches to participation. These types of approaches came out from a distinction of the extent and the aim of spaces of participation. The involvement of citizens can be seen either as building of community, activation of elites, mapping of public preferences or as consultation with local experts.
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The use of vegetation indices to study temporal variation in vegetation phenology
Beránková, Petra ; Štych, Přemysl (advisor) ; Hesslerová, Petra (referee)
1 ABSTRACT The work deals with the use of vegetation indices to study temporal variation in vegetation phenology. The first part was devoted to detailed analysis of domestic and foreign literature, which deals with the work processed in this field. The main research questions were if changed start, end and length of growing period during the analysis period. Other research theme was comparision with ground phenological data. Another objective of this work was search dependencies computed data phenological variables from vegetation indicies with phenological ground data. As a basic data set was used GIMMS set, which distributes the vegetation index NDVI. Other data sets were MERIS MTCI, data MODIS with vegetation indices NDVI, EVI a LAI. The results of analyzes of vegetation phenology show trends in most shifts at the beginning of growing season, where was a shift to an earlier time. Results of the analysis of vegetation remote sensing data with ground-based phenological data ČHMÚ were unfolding always according to the specific forest phenological stations. Interesting results were at the phenological station Svoboda nad Úpou, where the results of trends directives were consistent in almost all data sets. Comparison of process curves vegetation indicies with ground data corresponded most curves at selected...
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The Youth Consumerism and Its Interdependency with Economic and Cultural Capital
Beránková, Petra Alexandra ; Šanderová, Jadwiga (advisor) ; Pašková, Miroslava (referee)
The work deals with the consumerism of thirteen and fourteen years old youths. The authoress aims to answer the question of what extent the observed age category seems to be consumer in their attitudes and whether their consumerist attitudes have an universal character or whether it is structurally related to their economic and cultural capital. At first the authoress briefly presents the consumerism as a sociological topic. She pays a particular attention to the impact of social stratification on the lifestyle. As her main theoretical basis she states a concept of homologous classes of Pierre Bourdieu, from which she incorporates the concept of economic and cultural capital as the main differentiating principles affecting the lifestyle. In addition she presents the characteristics of today's school children in the context of Czech society and mentions the role of socialization in the transfer of capital and consumption patterns from parents to their child. Finally, the authoress describes her approach to the analysis of data on attitudes towards the consumption in defined age category. She introduces readers to research results, which show the prevailing consumerism of monitored group. On the basis of correlation analysis, the authoress notes that there are significant correlations between indexes...
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Tonal and harmonic sensibilities as a basis for creative expression in music education
Beránková, Petra
The publication goes into a creative development of tonal and harmonic sensations in the music education al elementary schools. In the introduction, the tonal harmonic relations are taken from a theoretical point of view and in the sphere of musical psychology, there is included the tonal and harmonic sensation into the system of musical abilities. A concept of tonality is defined and its relation to the abilities in view determined. Then there follows an evolution of tonal and harmonic sensations in tests of musical abilities and a diagnostic methods presentation. A child's musical ontogenesis oriented on an evolution of the examined abilities and an influence of home and school backgrounds are depicted in a chapter concerning the personality of a pupil. In the context of the creativity and integration, there are also described pedagogical aspects of the examined abilities development. The theoretical section is concluded by a methodical part that is after the stating of basic principles of the tonal and harmonic sensations development elaborated into systematic algorithms within the scope of different classes. The widest part of the publication is an exploration of tonal and harmonic sensations at an elementary school creative development including a description of the experiment different parts and...
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Constructing Participatory Spaces: Involving Citizens into the Urban Development Planning from the View of Planners
Beránková, Petra Alexandra ; Mička, Pavel (advisor) ; Veselý, Arnošt (referee)
The work deals with constructing of participatory spaces in the process of urban development planning. The topic of involving citizens into planning is viewed from the point of planners. A concept of participation in this text is conceived in the sense of invented spaces built from above. The research perspective is an interpretative one, anchored in the constructivist epistemology. Therefore the main question is: How do planners reflect involving citizens in the planning? Firstly, the authoress demonstrates the importance of her topic by putting it into the context of wider social dynamics related to the crises of representative democracy and emerging of sub-politics. She reveals that the trend of building participatory opportunities is strengthening. The important question is formulated: How is the role of public in the strategic planning constructed? On the base of analytical induction of semi-structured interviews with planners, the authoress creates her own typology of ideal-type approaches to participation. These types of approaches came out from a distinction of the extent and the aim of spaces of participation. The involvement of citizens can be seen either as building of community, activation of elites, mapping of public preferences or as consultation with local experts.
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Volatile metabolites of food additives and food supplements - review
Beránková, Petra ; Šatínský, Dalibor (advisor) ; Matysová, Ludmila (referee)
Charles University in Prague, Faculty of Pharmacy in Hradec Králové Department of Analytical Chemistry Candidate: Petra Beránková Supervisor: doc. RNDr. Dalibor Šatínský Ph.D. Supervisor - consultant: Mgr. Kseniya Dryahina Ph.D. Title of bachelor thesis: The Volatile Metabolites of Food Additives and Supplements Most of the food available in supermarkets contains food additives that are used to improve the appearance, smell and taste. Additives undergo metabolism in the human body undergo metabolism and can influence the health of the individual. The aim of this thesis is to explore the possibility of establishing volatile metabolites present in human breath that arise as result of metabolism of food additives and supplements. Experiments focus on quantitative pharmacokinetics of volatile metabolites after ingestion of a substance selected from the group of artificial sweeteners and supplement. Food sweetener aspartame (E 951) used to achieve a sweet taste in foods and beverages was chosen as a model example. Aspartame is converted in the body to methyl alcohol, formic acid and phenylalanine. Therefore, we followed the methyl alcohol content in the breath of healthy volunteers. Breath analysis was performed using SIFT-MS (selected ion flow tube mass spectrometry) with the Profile 3 instrument. The...
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Guardians of the Public Interest: Frame Delimiting of watchdog Activism in the Context of Social scientific Discourse and in the Perspective of its Representatives
Beránková, Petra Alexandra ; Frič, Pavol (advisor) ; Kotlas, Petr (referee)
The work deals with the phenomenon of so called watchdog organizations. The increasing number and influence of these organizations indicates a creation of new social movement. The authoress defines them as a type of public benefit nongovernmental organizations focused on the controlling of the public sphere or advocating and asserting a "public interest" in relation to the democratization of society. The authoress target is to understand this type of action, so she asks herself the question: Which frameworks are used by watchdog activists for the interpretation of their acting? At first there is briefly presented the concept of watchdog in the context of wider reflections of contemporary society, mainly in the context of reflexive modernity, monitory and participatory democracy and information society. Secondly there is introduced Goffman's framework analysis and the related conceptualization of framework of social movements by Benford and Snow. The authoress highlights a definition of frames as the principles of selection, emphasis and presentation about what happens, and what matters. In the next part of this work, there are presented the methodology and results of the qualitative research based on semi-structured interviews with watchdog activists. The research is settled in the area of...
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