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Manipulation in photography: techniques for manipulation and their identification
Liprtová, Anna ; Černý, Vladimír (advisor) ; Fišerová, Michaela (referee)
This thesis deals with the manipulation of a photograph. The first part is the theoretical framework, which is used in subsequent chapters by analyzing selected examples primarily reflecting concepts such as authenticity, objectivity, truth value or manipulation. Outside the theoretical framework is mentioned in the introductory parts of the historical evolution of analogue photography which flows into the history of digital photography. In the analytical part of the study we work with selected manipulative techniques (arrangements, retouching, photomontage, digital cloning, exchange heads, manipulation accompanying text or photos without referents) which are applied to individual examples using the theoretical framework from the first part. The study answers to our research questions, namely is it still possible to understand photography as an objective and trustworthy visual medium and is it possible to defend against the visual manipulation? The analysis shows that in the context of industrial practices in the photo and their availability has truth value of photographs as its objective quality not by its nature possible, while research and methods in detecting manipulation are crucial, but the amount of video material is still essential defense against manipulation of critical thinking. Key...
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Development of digital photography technology as a transformation of expressive possibilities of the medium of photography
Česálek, Tomáš ; Vančát, Jaroslav (advisor) ; Černý, Vladimír (referee)
The history of photography represents a constant technological development of the medium towards increasing sophistication, which is related to spreading possibilities of complex control upon semantic meaning of each camera image. The thesis comparatively analyses expressive possibilities of film and digital photography with emphasis on the relations of both medium with other audiovisual means of communication. The thesis compares technological possibilities of both medium and focuses on growing integration of digital methods of imaging with new media through computer graphics. The thesis focuses on transforming role of photography in the society which is connected with democratization of access to cameras and the possibility of sharing resulting images via internet and social media. Based on described data the author points out the changing role of the creator and the viewer in the process of interpretation of visual images.
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Virtuality and Construction of New Visuality
Hunčovská, Hana ; Fišerová, Michaela (advisor) ; Černý, Vladimír (referee)
This dissertation focuses on the problematic of the use of specific virtual representational methods and their influence on the construction of the new visuality. The aim of this dissertation is to show how computer simulations and visualizations used in medical imaging change the way of our apprehension of the world. Nowadays, within academic circles we witness both optimistic and sceptic theories concerning the effects of integration of computer technology and human apprehension. In this work we would like to answer the question about the type of knowledge we gain through virtual visualizations and we would like to prove that virtual simulations don't necessarily have to be a threat but, on the contrary, by developing visual imagination they can support new, creative apprehension of reality. Key words Linear perspective, logic of database, narrative, rhizome, scopic regime, simulation, simulacrum, virtuality, vision, visuality, visualization
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Methods of tissue perfusion and microcirculation assessment in experiment
Šitina, Michal ; Černý, Vladimír (advisor) ; Stříteský, Martin (referee) ; Kroužecký, Aleš (referee)
Methods of tissue perfusion and microcirculation assessment in experiment - set of experimental studies Michal Sitina Summary of doctoral thesis Doctoral study program Surgery Hradec Kralove 2013 Summary In the course of the doctoral study we have performed 4 experimental animal studies and one theoretical study using a mathematical model. Three of the studies were published in journals with an impact factor. All studies, using various research methods, deal with a microcirculation. We have assessed the method of the indicator dialysis as insatisfactory for an accurate measurement of the tissue perfusion. We have demonstrated no negative influence of a moderate hypothermia on the cerebral autoregulation of a pig. The mathematical model identified several factors, that can influence the THR test of the cerebral autoregulation. The influence of the inertia assessed the mathematical model as marginal. The methodical study of a visualisation of the surface brain microcirculation of rabbit using SDF imaging proved a high quality of visualisation. The measured parameters corresponded with the other literature values. An application of the SDF imaging of the brain surface mentioned above showed no changes of the brain microcirculation of rabbit at the early stage of the endotoxemia. Powered by TCPDF (www.tcpdf.org)
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The problem of authenticity of photograph: testimony evidence and historical consciousness
Černý, Vladimír ; Fišerová, Michaela (advisor) ; Borecký, Felix (referee)
The thesis points to the negative phenomenon of Holocaust denial, objective viewpoint of testimony, authenticity of photograph and background of historical consciousness in the context of postmodern situation. If we wanted to use objective testimony of photograph as a valid argument against Holocaust denial, we would have to declare the authenticity of photograph is invalid. The options of its manipulation, both content and meaning, are examined through semiotics of Peirce, mainly through trichotomy icon, index and symbol. In today's pluralistic time, the historical consciousness is proposed as a possible starting point of examination of historical sources, including photograph. Key words Photograph, authenticity, manipulation, Peirce, historical consciousness, Holocaust.
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Evaluation of patient satisfaction with perioperative anesthetic care
Břízová, Pavla ; Černý, Vladimír (advisor) ; Mrákava, Vlastimil (referee)
The topic of this thesis is "Evaluation of patient satisfaction with perioperative anaesthesia care." The work is divided into theoretical and practical parts. The theoretical section describes the definition of satisfaction from multiple points of view and analyses factors affected satisfaction of patients and psychosocial needs that have a significant impact on the experience of the hospital care. The practical part deals with the questionnaire survey. The questionnaire is focused on the evaluation of patient satisfaction with perioperative anaesthesia care. Questionnaire results are statistically analysed. The aim of this work is to determine the level of satisfaction of patients in the preoperative and postoperative period.
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General Anesthesia and Analgosedation with Combination of new Alfa2 agonists and ketamine - focused on specific situation
Schreiberová, Jitka ; Černý, Vladimír (advisor) ; Cvachovec, Karel (referee) ; Málek, Jiří (referee)
Introduction: Ideally, general anesthesia and analgosedation in specific situations should meet the following requirements: fast and simple induction of analgesia, achievement of the desired suppression of consciousness, minimal cardiovascular effects, preservation of patent airways without the need for mandatory ventilation, and rapid recovery after the application of antagonists. Ketamine is widely used for this purpose, often in combination with benzodiazepines, however, it does possess an undesired psychomimetic effect and lacks a specific antagonist. In veterinary anesthesia ketamine is often used in combination with alfa2 agonists, a group of substances with a favourable pharmacological profile in specific situations from an anesthesiologist's point of view. Ketamine in combination with new representatives of alfa2 agonists may theoretically be a promising new option for this purpose. Aim: In rhesus monkeys experiments to assess 1. immobilization by combination of ketamine with alfa2 agonists, 2. effect of the addition of hyaluronidase to the above mentioned combinations, and 3. the possibility of reducing ketamine dosage through the addition of a small dose of midazolam while maintaining the effect of immobilization. In the clinical part to assess analgosedation with combination of...
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