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Analysis of gender roles and stereotypes on social network Instagram
Sedláková, Veronika ; Vochocová, Lenka (advisor) ; Hladík, Radim (referee)
This diploma thesis deals with the position of women and men on the Internet social network called Instagram. The theme is first described from a theoretical point of view, explaining what web 2.0 is, what social networks are and how social networking helps with our socialization to society and our self-presentation. In this part are also explained the concepts of gender and gender stereotypes. My own research consist of three parts. The first part is a qualitative image analysis of so-called "selfie" photos of selected Instagram users, which revealed, that the women that I analyzed supported gender stereotypes in female imaginary, while analyzed men occasionally oscillated between masculinity and femininity. The second part is the analysis of the number of the likes under these "selfie" photos and the third part is the analysis of deep semi-structured interviews, which showed that women and men have much in common on Instagram. But overall, their position on this network according to my analysis is not the same.
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Drawing polytopes in various dimensions
Ondráček, Lukáš ; Šámal, Robert (advisor) ; Mareš, Martin (referee)
The thesis describes implementation of an application for drawing three- and multidimensional polytopes allowing their fluent rotation. The application Geometric Figures for Linux and Windows is written in the C language using the OpenGL library and it supports plug-ins written in the Python language. Iterated perspective projection and edges coloring according to their location is used. In addition, the application is able to generate the convex hull of a set of points, cut figures with hyperplanes, stellate figures, create geometrically dual polytopes and cut off parts of figures; all functions are independent to the number of dimensions of the polytopes. The application profits from its easy extensibility using modules and its code being open-source. Powered by TCPDF (www.tcpdf.org)
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Depiction and Meaning of Animals in Renaissance Portraiture: The Case of the Ermine
Marešová, Markéta ; Konečný, Lubomír (advisor) ; Zlatohlávek, Martin (referee)
This thesis deals with representation of animal and their meaning in european portrait painting of the period spanning from second half of 15th century till the beginning of 17th century and it sets to describe relationship between humans and animals occurring in the symptomatic space of portraiture as well as the renaissance culture in general. Among the art genres it is portrait where we can trace immediate interaction of humans and animals as the later are usually included in the painting on demand of the submitter of the artwork and are positioned there as a symbol though which the portrayed person communicates with viewer. The fundamental characteristic of animal symbolic is its ambivalence and multiplicity of meaning shaped over centuries as the renaissance iconography of animal have been dominantly formed by ancient manuscripts and medieval bestiaries. From the wide specter of animals represented in this period my thesis is focusing in detail on the case of ermine which was one of the less commonly represented animals. Symbolism of the ermine is further discussed in case study on two particular master pieces of renaissance art - Lady with an Ermine by Leonardo da Vinci and Young Knight in a Landscape from venetian painter Vittore Carpaccio - where the appearance of the animal plays key role...
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Real-time Global Illumination Computation
Šváb, Tomáš ; Křivánek, Jaroslav (advisor) ; Vorba, Jiří (referee)
Thesis examines the current research and development in the field of real-time global illumination. It concentrates on techniques that are capable of simulating dynamic environments and require only limited precomputation. It contains a theoretical as well as practical part. In the theoretical part the basics of rendering and selected global illumination methods are described, namely reflective shadow mapping, light propagation volumes and voxel cone tracing. The practical part includes implementation of selected methods, which are then tested, compared and improved. A program called R-GITE (Real- Time Global Illumination Testing Environment) was created to provide a foundation for prototyping these rendering algorithms. There are two main criteria in the testing - accuracy of the result and speed of computation. In the end we used the data from the tests to determine both the strong and the weak points of the methods and discuss usability of the methods for specific scenarios. Powered by TCPDF (www.tcpdf.org)
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Processing data from two-photon microscope
Tomek, Jakub ; Novák, Ondřej (advisor) ; Krajíček, Václav (referee)
Two-photon laser scanning microscopy is a modern method of in vivo neurophysiological research, capable of imaging up to hundreds of neurons at once. However, this method produces a large amount of data, difficult to process and analyze manually. This thesis presents Two-Photon Processor, a new toolkit for complex processing of data from two-photon microscope. During the work on this thesis, we designed the SeNeCA segmentation algorithm for detection of neurons in full-frame recording from a two-photon microscope. SeNeCA combines high speed and high quality of segmentation and, according to our evaluation, it currently is the best algorithm for segmentation of neurons in in vivo data. Two- Photon Processor is already routinely used in the Institute of Experimental Medicine of the ASCR, Department of Auditory Neuroscience, and it was published in the Journal of Neurophysiology.
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Data structures for rendering non-polygonal geometry
Kuckir, Ivan ; Křivánek, Jaroslav (advisor) ; Vorba, Jiří (referee)
In modern 3D graphics, scenes made of triangles are usually used, combined with methods based on ray tracing. Hierarchical data structures, called accelerating trees, are often used to speed up the search for intersection between ray and the scene. When testing the best current methods with non-polygonal geometry (line segments), we have found out that those structures cannot build an effective tree in many cases. The aim of this work is to formulate the problem mathematically. Thanks to this, the whole subject becomes more transparent and we can see the shortcomings of current methods, which have not yet been pointed out. At the result, we develop an algorithm which generalizes all current methods, which is not dependent on geometry and directly shows the space for improvement.
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Light Propagation Volumes
Růžička, Tomáš ; Tóth, Michal (referee) ; Milet, Tomáš (advisor)
The aim of master thesis is to describe different calculation of global illumination methods including Light Propagation Volumes. All three steps of LPV calculation are widely described: injection, propagation and rendering. It is also proposed several custom extensions improving graphics quality of this method. Two parts of design and implementation are focused on scene description, rendering system, shadow rendering, implementation of LPV method and proposed extensions. As conclusion, measurement and several images of application are presented, followed by comparison in environment with diffenent parameters, thesis summary with evaluation of achieved results and suggestions of further improvements.
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Lightmap Generation Tool
Růžička, Tomáš ; Pečiva, Jan (referee) ; Polok, Lukáš (advisor)
This bachelor's thesis deals the design and implementation of a Lightmap Generation Tool. The aim of this thesis is to describe and demonstrate all steps which are necessary for lightmap creation, specifically unwrapping 3D object geometry process and consequently shading it by the ray-tracing method. The scene system and the used engine are also described in this thesis. This work is concluded by a several experiments, along with image documentation, followed by the possibilities of the future work.
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Synthesis of spherical gold nanoparticles for biomedical applications
Gablech, Evelína ; Adam, Vojtěch (referee) ; Drbohlavová, Jana (advisor)
Tato práce se zabývá syntézou sférických zlatých nanočástic pro biomedicínské aplikace. Zlaté nanočástice byly syntetizovány ekologicky nezávadnými metodami, kterým je věnována i značná část rešerše. Cílem bylo nasyntetizovat stabilní koloidní zlaté nanočástice vhodné pro různé biomedicínké aplikace zejména, pro in vivo a in vitro zobrazovací metody, kterých přehled je take obsažen v teoretické části práce. Také byl proveden test cytotoxicity, jelikož částice mají být použitelné pro in vivo aplikace. Částice byly dale charakterizovány metodami SEM, DLS a UV-VIS.
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Disturbing artifacts of radiodiagnostic modalities
ŠEDA, Miroslav
This work gives information on machines used for diagnostic imaging aimed to disturbing scan artefacts of chosen device (CT, MR, USG). Radiology assistant work still more depends on technique which helps in examination. The machines used for clients´ examination are thanks to IT development still more complicated. They allow high-quality and precious images, give more possibilities of treatment ways, save the client. Operating this technique is the domain of radiology assistants. Development without restrain leads to period when operating staff will work more independently. It is necessary for the radiology assistant to manage all steps in examinations which are undergone. He has to keep radiation protection and the quality of the image result as well. The result of most diagnostic examination in radiology department is image information. Image results can be from various reasons changed or deformed in comparison with the reality. Such distorted images can lead up to mistaken or late diagnosis by the physician. Radiology assistant is the first specialist who must be able to judge whether the examination has been done correctly or to warn the physician of possible variation or image deformation. Moderation or suppression of artefacts in image results in examination is easy in some cases. Then it is enough to explain the process of examination to the client and to emphasize how important is to cooperate with the staff. In some cases is technically impossible to impact the manifestation of artefacts as it results from the principle of examination method, or because of high financial costs unbearable for the health institute. In my work I aimed to image artefacts of machines (CT, MR, USG) which can be met in common clinical practice. I tried to document these image artefacts in common running. Part of my work is to describe the causes of artefacts appearance and the way how to avoid or remove their manifestation.
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