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Negative aspects of deploying of ICT
Weinsteinová, Adéla ; Basl, Josef (advisor) ; Fortinová, Jana (referee)
This diploma thesis exmines the negative aspects of using information and communication technologies. The main attention is fosused on virtual reality, especially 3D projection in order to decide wheather the using of it has negative impact on phycal and psychological state of the user or not, which exactly are these impacts and what probably cause them. This first part is dedicated to expain concept and history of ICT, explonation of the multidimensional princip and content of each dimension. The following is determination of which ICT areas are currently struggling in their use with negative effects. Detected list of these areas is reduced to six specific technologies which common user has opportunities to experience. These particular technologies were examined as a form of questionnaire, which resulted in a determination of the most used one, ie virtual reality. Shortly afterwards was conducted an experiment imparting undesirable effects caused by using virtual reality. The other five selected technologies are discussed for the most important negatives with which has to face today. The main finding of this study is the identification the side effects of virtual reality based on different types of technologies which are anaglyf 3D projection, passive 3D projection, active 3D projection and comparing if adverse effects depends on the type. It also includes determining the rate of uptake in virtual reality.
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Vliv internetu na společnost - virtuální realita
Neumann, Dominik ; Řezníček, Václav (advisor) ; Smutný, Zdeněk (referee)
This work is supposed to highlight some of the problems of today's IT generation, in which the most important thing is the internet and iformations on it. For this purpose, we will use quantitative and qualitative methods. We realize not only the transformation of traditional relationships on the Internet, but also a change in basic human activities. While questioning the influence of virtual reality/surroundings, we encounter several problems, such as multitasking, working on multiple processes at once, but neither of them gets our full concentration. Then there is the problem of student's focus on topic at hand, its processing and outcome interpretation. For our purposes is the work divided into four parts.
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Drug addicition as a result of not properly using leisure time
KOHOUTOVÁ, Jana
The work deals with relationship between poorly used leisure time and drug addicition. It is theoretical and it is based on studies from the Institute for Criminology and Social Prevention. This work explains aspects of leisure time and its use. It describes the facts which may leisure time and selected activities affect. It describes drug history and reveals the problems of addiction. It tries to explain the causes and consequences that drug addiction brings. In particular, it deals with children and youth addicitons. Last part reveals some of the leisure time activities that have an impact on drug use. The result of studies that have been done by the Institue for Criminology and Social Prevention is clear that among these activities that include dance, mostly electronic music and virtual reality may incerase drug addiction.
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The Internet and social networks as a way of spending leisure time in secondary schools
KABÁTOVÁ, Eliška
This thesis deals with the problem of spending free time by students at the second grade of primary schools. Its aim is to find out whether the Internet and social networks have a major impact on leisure time of these pupils and whether these pupils are aware of the risks associated with the use of the Internet. The first part is divided into chapters that seek to clarify the area of leisure time, its functions, determinants and factors affecting the form of leisure time activities. At the same time, there is a summary of the sphere of media, the Internet and social networks that significantly affect people's lives. The second part is devoted to the questionnaire survey carried out among pupils at the 8th and 9th grade at primary school in Lhenice and 3rd and 4th grade students at grammar school Jírovcova in Ceske Budejovice. The research results are presented in tables and graphs. The appendix contains additional pictures that add the text of theoretical part of the thesis as well as a model questionnaire submitted to the respondents.
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MSAR BTF Model
Havlíček, Michal
The Bidirectional Texture Function (BTF) is the recent most advanced representation of material surface visual properties. BTF specifies the changes of visual appearance due to varying illumination and viewing conditions. Such a function might be represented by thousands of images of surface taken in given illumination and viewing conditions per sample of the material. Resulting BTF size, hundreds of gigabytes, excludes its direct rendering in graphical applications, accordingly some compression of these data is obviously necessary. This paper presents a novel probabilistic model based algorithm for realistic multispectral BTF texture modelling. This complex but efficient method combines several multispectral band limited spatial factors and corresponding range map to produce the required BTF texture. Proposed scheme enables very high BTF texture compression ratio and in addition may be used to reconstruct BTF space i.e. non-measured parts of the BTF space.
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Children, youth and use of Facebook
MARVANOVÁ, Eva
This bachelor´s thesis deals with the attitude of children an teen-agers to a social network called the Facebook. It tries to find out whether children and teen-agers use the Facebook in their free time an whether they realize this risks connected with its using. The thesis is divided into a theoretical part and a parctical part. In the teoretical part there are defined terms like children, teen-agers, a free time, an internet, cyber-bullying, a virtual world and a virtual reality and the Facebook is not missing, of course. There are also described the risks, that the Facebook can bring with its using. The practical part is occupied by research. The results of the research are an interpretation of spending children´s free on Facebook and of the risks, that can be occured by using the Facebook.
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Virtual Worlds
Novák, František ; Pokorný, Pavel (advisor) ; Kubátová, Jaroslava (referee)
The bachelor's thesis is focused on highlighting the development of virtual worlds. The paper summarizes the evolution of virtual reality. Current virtual worlds are compared in fundamental aspects, such as sociology, economics and education. Social sphere describes the interaction in virtual reality and its specialities. Economical sphere is focused on comparison of real and virtual economies, including their economic indicators. Educational sphere describes the sciences, which are best useable in virtual reality. In each category is compared the Second Life and the largest MMORPG today. Further are monitored possibilities of virtual reality for academic purposes, particularly for economic education. It is also evaluated using the general suitability of virtual worlds for teaching and specialized economic simulators on the other hand.
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