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Problem migracji oraz pojęcie „baniek filtrujących” zostały ujęte w niniejszym artykule z perspektywy kulturoznawczej z podkreśleniem aspektu wzorów kultury, rozumianych jako wzory myślenia, które zakorzenione są zarówno w kulturach pochodzenia, jak i napływające z innych kultur. Obecnie w przestrzeni społecznej obserwujemy dobrze opisane przez M. Maffesoli zjawisko „neotrybalizmu”, które wydaje się korespondować z pojęciem „baniek filtrujących”, charakterystycznych dla nowych mediów. „Bańki filtrujące” zamykają użytkowników „sieci” w przestrzeni idei, wyobrażeń i narracji, które scalają wąskie grona osób: o określonych poglądach, uznawanych wartościach, stylach życia i potrzebach oraz sposobach ich zaspakajania, a które zamknięte w przestrzeni wirtualnej, zarządzane są przez algorytmy i moderatorów. Problem ten wydaje się być jednak szerszy i dotyczyć, w znacznej mierze, społecznej przestrzeni współczesnych stechnicyzowanych społeczeństw, na co wskazuję w niniejszym artykule.

This bachelor work "Damage of trees at different ways of protecting against weeds at LHC Střílky" examines the effectiveness of treatment for weed grazing on artificially regenerated stands. These damage caused by red deer mainly. For comparison, the authors also explored grazing on natural regeneration in designated transects, which allows us to observe the effect on various means of protection against natural way of recovery. Bachelor work also deals with not only biological, but also economics way. From the obtained results, mentions a proposal for the best solution in terms of the economy and also in terms of good growth cultures.

The diploma thesis studies impacts of receiving the European Capital of Culture 2013 title by the city of Košice. The thesis analyses positive and negative impacts on different fields, mainly impacts on tourism and cultural life in the city. Questionnaire aimed at valuation of the ECC Košice 2013 project is also a part of the thesis. Respondents evaluated their satisfaction, success and fulfilment of their expectations according to this project.

The aim of this thesis is to test and consequently disprove or confirm the hypothesis that with the large influx of immigrants to Canada, volunteerism might not be able to survive in its present form. In the theoretical part of the work focus has been set on term definition and volunteering classification because it is a structured activity with its own rules and policy. History of volunteering has been described in the following chapter. This part goes beyond the history of volunteering in Canada since it is a deeply rooted Anglo-Saxon tradition which had been brought there by the British and French. The last chapter has been dedicated to the current situation of volunteering in Canada including a profile of a volunteer and possible current threats. The practical part has been based on a survey conducted among York University community members and an analysis of their answers. This survey became, together with my visit to the 2011 Toronto Volunteer Fair and an in-depth interview, the main source for the comparison of practice and theory.

Martina Janoutová In vitro cultures of medicinal plants - XII. Abstract The effect of ultrasound (US) as abiotic elicitor on the flavonolignans production in Silybum marianum L suspension culture was investigated. The culture was cultivated in Murashige and Skoog nutritive medium with ( - NAO) (g/l) as growth regulator at 25o C and luminous period 16 h of light and 8 h of darkness. The elicitor - ultrasound by frequency 35kHz and intensity 0,1Wcm-3 for a period 1, 2, 3, 4 and 5 min has been used. The samples were taken in 0, 6, 12, 24, 48, 72 and 168 h after US exposition. The control samples were taken in 0 and 48 h. The quantity of flavonolignans was determined by High performance liquid chromatography (HPLC). The highest increase of taxifolin content was apparent after 5 min of US elicitation and 48 h sampling (0,04%) - 400%, other increase was apparent after 5 min of elicitation and 72 h sampling. The higher content of silychristin was found after 1 min of US elicitation and 72 h sampling, the same level was observed after 2 min of elicitation and 24 h sampling. The higher level of silydianin was detected after 2 min of US elicitation and 6 h sampling and the silybin B after 2 min of elicitation and 12 h sampling after exposition. Taxifolin and flavonolignans release to the nutrient medium was...

Jan Kubeš Genista tinctoria in vitro - abiotická elicitace Cultures of medicinal plants in vitro - XIII. The plants cultures in vitro contain lesser amounts of secondary metabolites in compare with intact plants. The elicitors can affect these metabolites production. The effect of electric current (50mA) of different voltage (5, 7, 8, 10, 15, 20 and 24 V) and different time exposition (10, 30, and 60 minutes) on content of isoflavones was studied on (Genista tinctoria) suspension culture. The highest concentration of genistin (0.17 %) was measured in suspension culture after 30 min of elicitation by 10 V after 6 hours of cultivation. The highest concentration of daidzein (0.35 %) was found in suspension culture after 60 min of elicitation by 5 V after 24 hours of cultivation. The highest concentration of genistin (1.6 mg/100ml) was measured in medium after 30 min of elicitation by 5 V after 24 hours of cultivation. The highest concentration of daidzein (1.77 mg/100ml) was found in medium after 10 min of elicitation by 24 V after 6 hours of cultivation.

In vitro cultures of medicinal plants - XI. Elicitation is one of the few strategies that can be used in enhancement of secondary metabolites production from explant cultures. The effect of abiotic elicitor (silver nitrate) on flavonolignan and flavonoid taxifolin production in suspension culture of Silybum marianum L. (Gaertn.) and on isoflavones production in suspension culture of Genista tinctoria L. was tested. Silver nitrate in various concentrations (5.887.10-3 mol/l; 5.887.10-4 mol/l; 5.887.10-5 mol/l) was used as elicitor. Content of secondary metabolites in suspension cultures was determinated by high performance liquid chromatography (HPLC). The samples were taken after 6, 12, 24, 48, 72 and 168 hours after elicitor treatment. The highest content of taxifolin production (0.02 %) in suspension culture of Silybum marianum L. (Gaertn.) after silver nitrate (5.887.10-4 mol/l) treatment and 72 h sampling was detected. The highest content of genistin (0.05 %) in suspension culture of Genista tinctoria L. was found after silver nitrate (5.887.10-4 mol/l) treatment and 48 h sampling. The highest content of daidzein (0.09 %) was detected after elicitor (5.887.10-4 mol/l) treatment and 168 h sampling.