A pesquisa aborda o desenvolvimento de competências e estratégias necessárias à apreensão crítica de produções audiovisuais contemporâneas em contextos escolares. Dados divulgados por pesquisas do IBOPE e da TIC KIDS ONLINE confirmam que crianças e adolescentes com idades entre 9 e 17 anos passam muito tempo em frente à televisão e/ou navegando na internet, através de diferentes dispositivos, assistindo vídeos, programas, filmes ou séries online. Considerar e contemplar no contexto escolar, parte das produções audiovisuais que essa parcela da população consome, explorando-as através de atividades pedagogicamente elaboradas, pode contribuir com a formação visual e audiovisual deste público. Nesta perspectiva, a da leitura e interpretação dessas produções, que se ampliaram, enquanto desafios contemporâneos do ensino de artes visuais, as abordagens envolvendo não apenas as produções de arte, mas toda e qualquer produção visual e audiovisual. Desta forma, a pergunta de pesquisa que norteia este estudo visa perceber e analisar como os professores de artes visuais podem proporcionar aos seus estudantes o desenvolvimento de competências que os tornem aptos para apreender produções visuais e audiovisuais contemporâneas de uma forma crítica Para tanto, os objetivos buscaram fomentar reflexões acerca do desenvolvimento de competências e estratégias para a apreensão de produtos audiovisuais; problematizar a apreensão visual e audiovisual no ensino da arte através da abordagem teórica e metodológica da semiótica discursiva greimasiana ampliada pelos estudos sociossemióticos de Landowski. Também, analisar os efeitos de sentido decorrentes da inter-relação entre uma produção cultural, o episódio O Sinal, da animação O Incrível Mundo de Gumball, e uma produção artística contemporânea, a videoinstalação Cinema Lascado, de Giselle Beiguelman e compreender os regimes de interação envolvidos. Observamos que, no âmbito do regime do acidente, as oscilações entre apreensão e suspensão da produção de efeitos de sentido relacionam-se com os conceitos de fraturas e as escapatórias desenvolvidos por Greimas. Por fim, entende-se que transitar entre diferentes regimes contribui para tornar a apreensão de sentidos mais sofisticada. / This study deals with the development of necessary competencies and strategies to develop critical apprehension of contemporary audiovisual productions in school contexts. Data released by IBOPE and TIC KIDS ONLINE surveys confirm that children and adolescents between the ages of 9 and 17 spend a lot of time watching TV and/or surfing the net through different devices, watching videos, programs, movies or online series. Considering and contemplating school context, part of the audiovisual productions which population consumes, can be explored through pedagogically elaborated activities, and may contribute to visual and audiovisual concepts of this public. In this perspective, reading and interpreting these productions, which have expanded throughout the years, seem to be contemporary challenges of visual arts teaching. Not only involving art productions, but any visual and audiovisual production. Thus, the research question that guides this study aims to perceive and analyze how visual arts teachers can provide their students the development of competencies that enable them to apprehend contemporary visual and audiovisual productions in a critical way To this end, the objectives sought to foster reflection on the competencies and strategies development for audiovisual products understanding; to problematize visual and audiovisual apprehension in the teaching of arts through the theoretical and methodological approach discursive semiotics of A. J. Greimas, enlarged by the sociossemiotics studies of E. Landowski. Also, to analyze the sense effects arising from the interrelationship between a cultural production, the episode The Sign, from the animation The Amazing World of Gumball, and a contemporary artistic production, the video installation of Cinema Lascado, by Giselle Beiguelman and to understand the interaction regimes involved. We observe that, in the context of the accident regime, the oscillations between apprehension and suspension in sense effects production are related to the concepts of fractures and the loopholes developed by Greimas. Finally, it is understood that being able to commute between different regimes contributes to make sense apprehension more sophisticated.

Unstable Systems or Why Is My Junk So Raw? is an exploration in the raw aesthetics of exposed electronics; showing the complicated systems that make our everyday electronics work using the visual language of formalism to display these “broken” consumer electronics as art. The work in my thesis show explores the creative potential of death and impermanence through the failing of technology. The work in the exhibition combines my interest and childhood fascination in electronics as well as my experience with my father’s illness. Accidentally and intentionally broken TV’s and electronics are producing live glitches which emphasize the instability of these otherwise closed systems.

I CREATED A SCULPTURE, WHICH IS A MATERIALISATION OF A DIGITAL MISTAKE, THAT IS CALLED DATAMOSH. FOR THE CREATION I USED CURRENT 3D TECHNOLOGIES. THE RESULT IS A SCULPTURE MADE OF PLASTER, POLYSTYRENE AND WOOD.

Glitch Möbelformgivning – Kontroll, slump och intuition i transformation av skogens formbank i digitala och analoga verktyg. Skogen är en inspirerande formbank med sin otämjda och komplexa uttryck. Med dagens digitala verktyg tillsammans med hantverksmetoder i kombination av slump, kontroll och intuition vill jag hitta och utforska nya gestaltningsmetoder. Genom dessa metoder försöker jag undersöka möbeldesignerns och inredningsarkitektens arbetssätt och formspråk. Med fokus på transformation och glitchen (glappet) mellan olika digitala och analoga metoder, verktyg och media. Med inspiration av skogen vill jag formge objekt med nya och unika formuttryck. En designprocess där det skulpturala värdet vägt tyngre än det funktionella. Examensarbetet resulterade i 6 unika objekt inspirerade av skogen, med en stor bredd och variation gällande material, digitala verktyg kontra analoga tillverkningsmetoder och färgtekniker. Materialen varierar mellan massitv furu, PLA-plast och frigolit. Färgteknikerna är bland annat airbrush, pigmenterad bets och lack. Objekten varierar i storlek från det minsta objektet på 10 x 10 cm (Krokarna - Vrilarna), till det största objektet som är 83 cm x 90 cm, (Spegeln - Istappen).

Ce travail de thèse traite différents aspects de la conception basse consommation. Tout d’abord, le concept du calcul réversible, considéré comme le premier essai pour un calcul sans dissipation, est présenté. Puis, je me suis intéressée aux dissipations des circuits complémentaires MOS puisque c’est la logique la plus couramment utilisée dans les circuits numériques. J’ai proposé deux approches pour réduire la consommation de ces circuits numériques. La première approche porte sur la réduction de la dissipation due aux glitchs. J’ai proposé une nouvelle méthode qui consiste à adapter les tensions de seuil des transistors pour assurer un filtrage optimal de ces glitchs. Les résultats de simulation montrent que nous obtenons jusqu’à16% de réduction des glitchs, ce qui représente une amélioration de 18% par rapport à l’état de l’art sur la base des circuits de référence ISCAS85. La deuxième approche porte sur la réduction de la dissipation obtenue en faisant fonctionner les transistors MOS en régime d’ inversion faible (sous-seuil). Les circuits fonctionnant dans ce régime représentent une solution idéale pour les applications ultra-basse-consommation. Par contre, l’une des préoccupations majeures est qu’ils sont plus sensibles aux dispersions des processus de fabrication, ce qui peut entraîner des problèmes de fiabilité. Je propose un modèle compact qui détermine le point d’énergie minimum de façon analytique, donc sans recourir à une simulation type SPICE, tout en étant suffisamment précise vis-à-vis de la variabilité(due à la dispersion). L’écart de résultat entre le modèle compact et un modèle SPICE complet est de 6%. / This thesis focuses on different aspects of ”Low Energy Design”. First, reversible logic, as it is the first attempt for low energy computing, is briefly dis- cussed. Then, we focus on dynamic energy saving in the combinational part of CMOS circuits. We propose a new method to reduce glitches based on dual threshold voltage technique. Simulation results report more than 16% average glitch reduction. We also show that combining dual-threshold to gate-sizingtechnique is very interesting for glitch filtering as it brings up to 27 % energy savings. In the third part of this dissertation, we have been interested in sub-threshold operation where the minimum energy can be achieved using a reduced supply voltage. Sub-threshold operation has been an efficient solution for energy-constrained applications with low speed requirements. However, it is very sensitive to process variability which can impact the robustness and effective performance of the circuit. We propose a model valid in sub and near threshold regions in order to correctly estimate the circuit performance in a variability aware analysis. We provide an analytical solution for the optimum supply voltage that minimizes the total energy per operation while considering variability effects. Spice simulations matches the analytical result to within 6%.

No description available.

This thesis is aimed at investigating virtual embodiment and how it can affect a performer's experience of; and relationship to the physical body. With this auto ethnographic case study I hope to shed some light on the  ways virtual reality technology enables critical experiences and what effects these experiences could have, through my own personal journey. The study was conducted in the setting of  my home using a Pico 4 VR head mounted display and HTC vive full body tracking. The project used for the case study was an audiovisual pole dance performance that was performed on the platform Neos VR and streamed to Studio 44 in Stockholm. The research is rooted in the artistic field but draws knowledge from psychological and social research on VR as a cognitive and embodied technology. The research methods used to gather and analyse the research material were visual research, phenomenology and deep listening. The data collection consisted of visual and text based data. On the visual data I applied thematic analysis, coding and categorising of the text based data and analysing hyper reflections with a phenomenological approach. I found that the experience of virtual embodiment did change my relationship to my own body in a positive way by feeling more grounded and accepting. I was less anxious about performing and felt more confident in myself. Because of the entanglement of the study it was not possible to solely contribute the outcomes of the effect to virtual avatar embodiment in itself. It did however demonstrate how these VR technologies could be used to enable norm critical experiences by the use of norm critical design applied to avatars challenging beauty ideals and societal norms of performativity. My virtual embodiment and its effects on me can give a unique insight that would benefit developers and users active in these platforms as well as for personal introspection and self development. The study serves as a good base to build future research on and I intend to further elaborate on the extensive research data that was gathered.

No description available.

Many embedded applications implement block ciphers and sorting and searching algorithms which use multiple loop iterations for computation. These applications often demand low power operation. The power consumption of designs varies with the implementation choices made by designers. The sequential implementation of loop operations consumes minimal area, but latency and clock power are high. Alternatively, loop unrolling causes high glitch power. In this work, we propose a low area overhead approach for unrolling loop iterations that exhibits reduced glitch power. A latch based glitch filter is introduced that reduces the propagation of glitches from one iteration to next. We explore the optimal number of filters to be inserted for different applications that give a good balance between area and power. We also implement partial unrolling with glitch filters. This approach consumes less area while still giving energy savings comparable to the fully unrolled implementation. Our approach is targeted to Xilinx and Altera FPGAs. We simulate different implementation choices and compare energy results to evaluate the savings. We demonstrate our approach on SIMON-128 and AES-256 block ciphers and a sorting algorithm. We prototype our design on Xilinx Artix-7 and Altera Cyclone-IV-GX FPGA development boards and measure the actual power savings. Results show up-to 90% dynamic energy reduction in Xilinx designs, and 97% reduction in Altera designs with our glitch filtering approach due to glitch power reduction.

Mémoire en recherche-création. / Ce mémoire de recherche-création explore le processus de conception et de production menant à la performance audiovisuelle Capter les fréquences optiques. Ce processus repose sur la rétro-ingénierie de dispositifs optiques, tels que des têtes de numériseurs, afin de générer des sons et des images à partir d'objets en proximité des senseurs. Des panneaux solaires sont également détournés de leur fonction habituelle afin de rendre audibles diverses sources lumineuses. Les stratégies d’élaboration dans la création de ces dispositifs de lutherie expérimentale entre en résonances avec la culture du do-it-yourself (le faire par soi-même), caractérisée en partie par le recyclage, l’intégration des résidus et le détournement. Passant par la notion de nostalgie technologique vers la matérialité du bruit et de l’approche critique dans le glitch art, ce texte examine comment la matérialité infuse le processus à travers la réappropriation d’objets électroniques. Par conséquent, l'œuvre met en évidence la façon dont la matérialité des circuits électroniques sert de vecteur d'agentivité, jouant un rôle esthétique et conceptuel crucial tout au long du processus de création, et ce, jusqu'au contexte de la performance. / This research-creation memoir explores the design and production process leading to the audiovisual performance Capturing Light Frequencies. This process relies on the reverse engineering of optical devices, such as scanner heads, to generate sounds and images from objects in proximity to their sensors. Solar panels are also redirected from their usual function to generate sound from various light sources. The strategies employed in these experimental instruments resonate with the do-it-yourself culture, characterized in part by recycling, the integration of residuals and hardware hacking. Examining the notion of technological nostalgia towards the materiality of noise and the critical approach in glitch art, this text examines how materiality infuses the process through the appropriation of electronic circuitry. Consequently, the work highlights how the materiality of electronic circuits serves as a vector of agentivity, playing a crucial aesthetic and conceptual role throughout the creative process, right up to the context of performance.