National Repository of Grey Literature 87 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Diffusion of innovations in small networks
Šiková, Hana ; Diviák, Tomáš (advisor) ; Lupač, Petr (referee)
in English Hana Šiková This thesis concentrates on the diffusion of innovations in small networks. It studies the process and success rates of diffusions started with different initial conditions. Computer simulations are used to obtain data. Fourteen real-life networks are used and six scenarios are studied. The seeds, i.e. nodes that start a diffusion, are chosen as the most central nodes (measured by degree, betweenness, closeness, and eigenvector centrality), the most marginal nodes, or random nodes. Simulations of these scenarios are conducted with seeds rep- resenting different percentages of the total nodes. Results are compared with network metrics. Centralization and density are chosen to describe networks. Individual case analyses are also presented. No significant correlation is found between the diffusion success and network characteristics. Diffusion success seems to be determined by the position of seeds and the network structure. The findings highlight the specificities of a "core-periphery" structure, in which central nodes have a strategic advantage in the sense of starting a diffusion of an innovation. The findings contribute to the understanding of which network characteristics contribute to the success of a diffusion. Klı́čová slova diffusion of innovations, social network...
Opinion Leadership in the Era of Social Media
Mejzr, Vojtěch ; Lupač, Petr (advisor) ; Vinopal, Jiří (referee)
Vojtěch Mejzr - Opinion leadership in the era of social media Abstract (in English): The concepts of opinion leadership and personal influence in relation to media emerged around 1950s, in the era of mass media. Opinion leaders became a cornerstone for a magnitude of consequent studies, either as mediators of media influence, but also as providers of personal influence, able to incidentally affect the opinions or acting of the people around them. The traditional medial system upon which are the classic theories based, however, has undergone significant changes - changes, which blur the lines between its primary distinctions. The emergence of "new" media is connected to processes of convergence, affecting the media technologies, the content, the relationship between the media and time, space and individual experiences of everyday life, but most importantly, the relationship between the content producers and the audiences, which are no longer just consumers. Diffusion of the internet and furthermore the user-oriented Web 2.0 grants the users abilities to use the social media in order to participate in the selection, production, but also distribution and gatekeeping of content - functions that have been previously distinctively held by the producers and the media industry. In this study, I use theoretical...
Health theories in the contemporary media discourse
Kuželová, Lucie ; Malvotová, Pavla (advisor) ; Lupač, Petr (referee)
The aim of this thesis is to present three different sociologically relevant conceptions (theories) of health and to explore their presence in Czech internet media. Based on different typologies, I have chosen three theories to work with in my thesis: Health as the healthy lifestyle, Health as social relationships, and Health as the ability to function. In terms of the chosen theories I also explore the presence of topics related to social determinants of health or to its consequences in the most read news websites. I explore whether the social aspects of health are being mentioned in the media and how they are presented. I point to the diversity of health conceptions and also to the existence of many different factors, which influence the overall health condition. The analysis is framed by the conception of social construction of reality: the media content is influenced by the society, but it also has an impact on thoughts and acts of the society. I have used content analysis to examine a total of 329 articles published on the websites novinky.cz and idnes.cz in 2009 and 2019. As a result of the analysis, I show that the chosen theories as well as the social determinants and consequences of health are quite higly represented in the news websites. I conclude that Health as the healthy lifestyle was...
Sociological inquiry into the hacker subculture: contributions for the field
Latislavová, Aneta ; Lupač, Petr (advisor) ; Buriánek, Jiří (referee)
The aim of this work is to use a synthesis of existing knowledge about the hacker subculture to find out its description and specifics. The hacker subculture is perceived as an anarchist group that does not have a fixed hierarchy and no rules. Part of the work deals with criminological theories that explain the behavior of hackers as deviants. The hackers themselves accept the label of deviants, but do not perceive it negatively. Their motivation for hacking is above all fun and curiosity. There is no fixed hierarchy in the subculture, but a system of status based on the credibility and experience of the hacker and hacker ethics that applies to their behavior and goals. These are focused on free access to information. Hacker subculture research is limited by the problems associated with the environment in which it operates. This also affects the information found, which we must approach with caution. Keywords Hacker, hacker subculture, internet, deviation, criminology
United Nations and political discourse of sustainable development in the Czech Republic
Větrovský, Karel ; Richter, Eva (advisor) ; Lupač, Petr (referee)
(in English): This work deals with the representation of the SDG in political party programs for elections to the Chamber of Deputies of the Czech Republic in 2013 and 2017. Specifically, the parties are ANO, Civic Democratic Party, Pirate Party, Communist Party of Bohemia and Moravia and Czech Social Democratic Party. In the theoretical part, through the Agenda theory, was discussed the process of forming a political agenda at national and international level. Furthermore, the concept of sustainable development is explained, including the development it has undergone historically. Then the position of electoral programs in political discourse is described. After description of the method, ie the content analysis of election programmes follows by the chapter dedicated to the analysis, where are some of the partial decisions and results explained. In the penultimate chapter, the main findings on the occurence of topics contained in SDGs are interpreted and in conclussion there is discussion going on in which are results confronted with other researches engaged in sub topics of the analysis. The work is concluded by recommendations for further research and the limits of this work.
United Nations and political discourse of sustainable development in the Czech Republic
Větrovský, Karel ; Kyselá, Eva (advisor) ; Lupač, Petr (referee)
(in English): This work deals with the representation of the SDG in political party programs for elections to the Chamber of Deputies of the Czech Republic in 2013 and 2017. Specifically, the parties are ANO, Civic Democratic Party, Pirate Party, Communist Party of Bohemia and Moravia and Czech Social Democratic Party. In the theoretical part, through the Agenda theory, was discussed the process of forming a political agenda at national and international level. Furthermore, the concept of sustainable development is explained, including the development it has undergone historically. Then the position of electoral programs in political discourse is described. The description of the methodology is followed by a chapter devoted to analysis, where the analysis processes are described in detail, including a detailed description of the findings. In the following chapter, the results of the analysis are interpreted and, at the end, all findings are discussed and confronted with other research as well as the limits of this work.
Violence on YouTube in the context of the classic discussion about violence in mass media
Vosmíková, Marie ; Lupač, Petr (advisor) ; Homolová, Pavla (referee)
This Bachelor thesis deals with violence on YouTube in the context of the classic discussion about violence in mass media. The aim of the work is to map out the influence of violent content in traditional and new mass media and then to analyse the occurrence and context of violent content of the most viewed videos on Czech YouTube. The theoretical part deals with the impact of watching violence in the mass media, with a significant part focused on studies about violence in television and the playing violent video games. It also introduces YouTube and its content, youtubers subculture and violence on YouTube. To get answers to the target questions, a quantitative method of content analysis was selected. Altogether 244 most viewed videos by 23 Czech youtubers were analysed. The main finding is that violent content appears in every fifth most viewed video of the most influential Czech youtubers. Most of these videos appear in let's play genre. Violent content of videos appears in the context of humour, rewards, without punishment, unrealistic characters, and as the only solution to the plot. This context has been identified by the theory as a risk mainly for children and adolescents, so further research in this area is needed to test the relationship between violent video content and aggressive or...
Big Data in Sociology
Lančová, Táňa ; Lupač, Petr (advisor) ; Vinopal, Jiří (referee)
The aim of this work is to provide a holistic view on Big Data in sociology and with this way to reflect the actual topic, which has not been systematically elaborated yet. This theses summarizes approaches to Big Data specification, which provides insight into complexity of this phenomenon. It describes attitudes of contemporary sociology of Big Data. It identifies Big data specifics, which lead to reasons, why Big Data have not been fully accepted by sociology yet. It provides comprehensive description of Big Data sources sorted by the owners and brings an overview of methods for Big Data analysis. It sorts and reflects Critical Data Studies and brings new topics. Key words: Big data, Big data analysis, methodology
Self-proclaimed political pundits in the age of social media
Matoušek, Vojtěch ; Lupač, Petr (advisor) ; Sládek, Jan (referee)
(in English): This thesis studies political pundits in the US who utilise YouTube as their main channel of communication. In particular, it studies a possible impact which political pundits in the non-traditional media might have in polarising the public and this in comparison with political pundits in the traditional media. The goal of this thesis is to better understand what makes the YouTube based political pundits different from their traditional news counterparts and which underlying messages we can find in their news reporting. The work uses the theoretical background of the echo chamber theory to utilise the content analysis methods in three major steps. First, categories are being established for predetermined dimensions using an exploratory content analysis of the biggest three traditional news outlets in the US. Using the established dimensions and categories, a quantitative content analysis is conducted on seven chosen non-tradition news outlets based exclusively on YouTube. To further explore the way by means of which these outlets present their messages, a qualitative content analysis is done on selected stories. It has been found that non-traditional media outlets are in general more inclined to talk about policy than traditional news outlets. It also has been found that YouTube based...

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