Esta pesquisa, na área de poéticas visuais, desenvolve reflexões que surgiram pela prática do ateliê e pelos meus trabalhos produzidos no período de 2011 a 2014. A pintura, perfomance, instalação e o impresso foram meios que utilizei para estes trabalhos e que estão presentes nesta dissertação. Uma pequena experiência, ao qual chamei de Laboratório de brotos e podres, feita em 2012, iniciou um aprofundamento no estudo sobre os elementos domésticos, os perecíveis e a prática da observação das coisas do ateliê. Tal investigação foi desenvolvida percorrendo artistas que trabalham o broto, os elementos domésticos e a materialidade do barro, bem como autores que discutem a coisa, o objeto, a natureza-morta e a efemeridade e permanência das coisas. / This research, within the visual poetics field, develops reflections arosen from the studio practice and from my works in the period 2011-2014. Painting, performance, installation and print were procedures I used for these works and which are present in this master thesis. A small experiment, which I call Laboratório de brotos e podres, conduced in 2012, began a deepening in the study of domestic elements, perishables and the observation practice of studio things. Such investigation was developed covering artists that work with the sprout, the domestic elements, and the materiality of clay, as well as authors that discuss the thing, the object, still life and the ephemerality and permanence of things.

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / The present research on Visual Poetics was developed between 2011 and 2013 as an investigation that was established by the combination of artistic practices and theoretical reflections, whose results reflect upon poetic strategies adopted by the conception and realization of those works. The proposal is based on contemporary issues that deal with the representation of objects in painting (still life) through the use of technical image, pictorial process that relates the concept of miscegenation. It was identified in those poetic strategies that the questions moved from the objects to the noise through mediated technique (optic) of the model. The confrontation between practice of studio and the data collected, visual and conceptual, intend to revitalize painting, permeating manual work with the perception from the mediated technique in order to demonstrate a view that makes connection with the issues from contemporaneity. Keywords: Painting, Mediation Technique, Still life, Optics, Noise / A presente pesquisa em Poéticas Visuais foi desenvolvida entre 2011 e 2013, como uma investigação que se estabeleceu na conjugação da prática artística a uma reflexão teórica, cujo resultado aborda as estratégias poéticas adotadas na concepção e realização desses trabalhos. A proposta instaura-se nas problemáticas contemporâneas da representação de objetos na pintura (natureza-morta) através do emprego da imagem técnica, processo pictórico relacionado ao conceito de mestiçagem. Identificadas nas estratégias poéticas as questões deslocaram-se dos objetos para o ruído gerado pela mediação técnica (óptica) do modelo. O confronto entre a prática de ateliê e os dados coletados, visuais e conceituais, pretende revitalizar a pintura, permeando este fazer manual com a percepção adquirida da mediação técnica, a fim de gerar uma visualidade que dialogue com as questões eminentes da contemporaneidade.

Esta pesquisa, na área de poéticas visuais, desenvolve reflexões que surgiram pela prática do ateliê e pelos meus trabalhos produzidos no período de 2011 a 2014. A pintura, perfomance, instalação e o impresso foram meios que utilizei para estes trabalhos e que estão presentes nesta dissertação. Uma pequena experiência, ao qual chamei de Laboratório de brotos e podres, feita em 2012, iniciou um aprofundamento no estudo sobre os elementos domésticos, os perecíveis e a prática da observação das coisas do ateliê. Tal investigação foi desenvolvida percorrendo artistas que trabalham o broto, os elementos domésticos e a materialidade do barro, bem como autores que discutem a coisa, o objeto, a natureza-morta e a efemeridade e permanência das coisas. / This research, within the visual poetics field, develops reflections arosen from the studio practice and from my works in the period 2011-2014. Painting, performance, installation and print were procedures I used for these works and which are present in this master thesis. A small experiment, which I call Laboratório de brotos e podres, conduced in 2012, began a deepening in the study of domestic elements, perishables and the observation practice of studio things. Such investigation was developed covering artists that work with the sprout, the domestic elements, and the materiality of clay, as well as authors that discuss the thing, the object, still life and the ephemerality and permanence of things.

Esta pesquisa, na área de poéticas visuais, desenvolve reflexões que surgiram pela prática do ateliê e pelos meus trabalhos produzidos no período de 2011 a 2014. A pintura, perfomance, instalação e o impresso foram meios que utilizei para estes trabalhos e que estão presentes nesta dissertação. Uma pequena experiência, ao qual chamei de Laboratório de brotos e podres, feita em 2012, iniciou um aprofundamento no estudo sobre os elementos domésticos, os perecíveis e a prática da observação das coisas do ateliê. Tal investigação foi desenvolvida percorrendo artistas que trabalham o broto, os elementos domésticos e a materialidade do barro, bem como autores que discutem a coisa, o objeto, a natureza-morta e a efemeridade e permanência das coisas. / This research, within the visual poetics field, develops reflections arosen from the studio practice and from my works in the period 2011-2014. Painting, performance, installation and print were procedures I used for these works and which are present in this master thesis. A small experiment, which I call Laboratório de brotos e podres, conduced in 2012, began a deepening in the study of domestic elements, perishables and the observation practice of studio things. Such investigation was developed covering artists that work with the sprout, the domestic elements, and the materiality of clay, as well as authors that discuss the thing, the object, still life and the ephemerality and permanence of things.

Hamlet's tragedy is constructed as a perspective of matter that is destined for decay, and this "objective," or "object-focused," mode of viewing the material world enhances theatrical and theological understandings of the play's props, figurative language, and characters. Hamlet's "objective mode" evokes early modern materialist philosophies of vanitas and memento mori, and it is communicated in theatre through semiotic means, whereby material items stand for moral ideas according to an established sign-signified relation. Extending an objective reading to Hamlet's characters reveals their function as images, or two-dimensional emblems, in moments of slowing narrative time. In the graveyard scene (5.1), characters and theatrical props cooperate to materialize the objective perspective. As a prop, Ophelia's corpse complicates the objective mode through its semantic complexity. Thus, she stands apart from other characters as one that both serves to construct and to deconstruct the objective mode. Hamlet's tragic outlook, which depends upon an understanding of matter as destined for decay, and of material items as ends in themselves rather than vehicles for spiritual transformation, is an early modern notion concurrent with theological debates surrounding the Eucharist. Drawing upon art-historical, linguistic, feminist, theological, and theatrical approaches, this thesis contributes to concurrent discourse on Hamlet's tragic genre.

Master's thesis called Not too well-known painter reacts on art of regional painter Jaromír Martiník. It is an exhibition of the work of this painter. Thanks to the intervention of author of this exhibition brings up his work into unusual context of artist from Beskydy, who is influenced by oriental philosophy.

This thesis deals with copyright protection and content authentication for still images. New blind transform domain block based algorithms using one-level and two-level Discrete Wavelet Transform (DWT) were developed for copyright protection. The mobile number with international code is used as the watermarking data. The robust algorithms used the Low-Low frequency coefficients of the DWT to embed the watermarking information. The watermarking information is embedded in the green channel of the RGB colour image and Y channel of the YCbCr images. The watermarking information is scrambled by using a secret key to increase the security of the algorithms. Due to the small size of the watermarking information comparing to the host image size, the embedding process is repeated several times which resulted in increasing the robustness of the algorithms. Shuffling process is implemented during the multi embedding process in order to avoid spatial correlation between the host image and the watermarking information. The effects of using one-level and two-level of DWT on the robustness and image quality have been studied. The Peak Signal to Noise Ratio (PSNR), the Structural Similarity Index Measure (SSIM) and Normalized Correlation Coefficient (NCC) are used to evaluate the fidelity of the images. Several grey and still colour images are used to test the new robust algorithms. The new algorithms offered better results in the robustness against different attacks such as JPEG compression, scaling, salt and pepper noise, Gaussian noise, filters and other image processing compared to DCT based algorithms. The authenticity of the images were assessed by using a fragile watermarking algorithm by using hash function (MD5) as watermarking information embedded in the spatial domain. The new algorithm showed high sensitivity against any tampering on the watermarked images. The combined fragile and robust watermarking caused minimal distortion to the images. The combined scheme achieved both the copyright protection and content authentication.

This study is an investigation into the morale and motivation of Nigerian teachers. Due to the geographical and administrative vastness of Nigeria this study focuses on Abia State. Abia is one of the 36 States of Nigeria and it typifies the educational structure and practice of Nigeria The study involves teachers and students from two primary and two secondary schools from each of the educational zones in Abia (a total of 12 schools). A focus group of 37 headteachers across Abia State will also be studied and the views of a cross section of students (12 students from each secondary school) are sought. The background information on education in Nigeria and Abia State as well as the reasons for this study are discussed in the introduction. A review of the literature on morale and motivation in African countries and other international studies is presented. The study employs ethnographic multiple case study and focus group methods which included a semi-structured focus group interview, participant observation and a self-administered questionnaire. Research methods and findings are discussed and analysed and from these emerged a motivation model. The study concludes with a discussion and evaluation of the findings. Obviously, any research work of this magnitude would have its limitations. These will be discussed. Recommendations for future research and developments towards improving the morale and motivation of teachers in Nigeria would follow.

Pour respecter les droits d’auteur, la version électronique de ce mémoire a été dépouillée de certains documents visuels. La version intégrale du mémoire a été déposée au Service de la gestion des documents et des archives de l'Université de Montréal / Que peuvent être des images pour la paix? Nous supposons que les agencements fictionnels des matières de l’expression capables d’entrouvrir la perception habituelle des choses et d’impulser de nouvelles visions du monde, en direction d’un vivre ensemble plus pacifique, sont ceux qui reposent sur trois modalités de respect. Premièrement, respect de l’intelligence des subjectivités spectatorielles, de leur capacité à lire et traduire par elles-mêmes ce qui leur est présenté. Deuxièmement, respect des êtres dans leur multiplicité, du caractère fondamentalement entre-formes de l’existence. Enfin, respect des potentialités expressives portées par les corps anonymes, humains autant que matériels, des virtualités créatrices que recèlent leurs impressions muettes. Nous retrouvons ces trois postures, à la fois esthétiques et politiques, dans le cinéma de Jia Zhang-ke. En effet, le travail fictionnel de ce véritable conteur consiste à débusquer la richesse sensible de l’expérience commune et à en opérer une réimagination fertile, notamment par le métissage fabulatoire de diverses paroles historiques ou encore par la revitalisation de décors ruiniformes au sein de natures mortes animées. Les gestes malicieux de cet artiste inquiètent et multiplient la figure donnée au réel et, par le fait même, suscitent de nouvelles manières de percevoir, de (re)connaître, de penser, voire de se constituer. À travers ses images, le commun s’exprime, se crée une mémoire et obtient la possibilité de devenir autre. / What can be images for peace? We suppose that the fictional arrangements of the expressive materials able to expand the usual perception of things and provoke new visions of the world, in direction of a better living together, are the ones which are based on three modalities of respect. Firstly, respect of the spectatorial subjectivities’ intelligence, of their capacity to read and translate by themselves what they are seeing. Secondly, respect of the beings in their multiplicity, of the fundamental in-between-forms attribute of the existence. Finally, respect of the expressive potentials carry by the anonymous bodies, human as well as material, of the virtualities of creation contain in their mute impressions. We find those three aesthetical and political postures in the cinema of Jia Zhang-ke. In effect, the fictional work of this true teller consists in finding the “sensible richness” of the common experience and in operating a fertile reimagination of this one, for instance by interbreeding, with a fabulating manner, various historic speeches or by revitalizing sceneries of ruins in animated still lifes. The mischievous gestures of this artist trouble and multiply the figure given to the real and, consequently, develop new ways of perceiving, knowing, thinking, and even of emerging. Through his images, the common express himself, creates himself a memory and has the opportunity to become something else.

A l’occasion de l'analyse de la question des capacités de l’image immobile isolée de « raconter une histoire », l’auteur développe les bases d’une narratologie fondamentale renouvelée, revisite la sémiotique du texte et les théories de l’image et réalise un déplacement méthodologique qui remplace l’approche sémiotique de la question du récit et de la narrativité par une approche en termes d’effets et de réception. La réflexion croise plusieurs disciplines : l’histoire de l’art, la narratologie, la sémiotique, mais aussi la philosophie et l’esthétique. Si l'auteur se propose bien de reconstruire les fondements même de la théorie de la narration visuelle, il ne cherche pas cependant à remplacer les théories existantes par un nouveau paradigme construit ex nihilo. Les bases nouvelles émergent au fil d’un travail sur les théories développées à ce jour ainsi qu'un corpus divers d'images narratives. Les théories critiquées se voient intégrées plutôt que niées dans le déplacement opéré. Pour résoudre le principal problème pour le récit iconique, celui du temps, l'auteur propose une nouvelle conceptualisation de la structure temporelle de l'image fixe unique. Celle-ci prend en compte le temps représenté et la durée perceptive. La dernière partie de l'ouvrage est consacrée à une relecture du Laocoon (1766) de G. E. Lessing, ouvrage largement responsable de la conception actuelle selon laquelle le récit iconique serait impossible. L'auteur montre que le débat autour des thèses de Lessing a été faussé par une confusion entre la question des possibilités/impossibilités de l’image comme telle et celle des « fins propres » de l’image dès lors qu’elle est artistique. / Based on his analysis of the possibility of iconic narrative – « telling a story » with a single still picture – Klaus-Peter Speidel develops a new foundation for visual narratology based on cognitive theory and reception aesthetics. Speidel's work is at the intersection of various disciplines : art history, literary theory, semiotics, philosophy of art and picture theory. While the thesis aims at reconstructing the foundations of a theory of visual narrative, the author does not try to replace the existing approaches with a new theory created ex nihilo. The new foundations emerge from his analysis of existing theories as well as a diverse array of pictures which play an important role in the argument. Classical theories of narrative are absorbed rather than rejected. In order to solve the main problem for visual narrative, the problem of time, the author offers a new conceptualisation of the temporal structure of still images. His taxonomy takes into account both the chronology of the story being told and perception time. The final part of the work offers a reinterpretation of G. E. Lessing's Laocoon (1766) a work that has played a major role for modern scepticism concerning the possibility of telling a story with a picture. The author shows that the discussion around Lessing has been biased by a confusion between the possibilities of the picture as such and the aims of artistic pictures. According to Speidel, Lessing's theory has lost much of its value as a theory of art but is still valuable as a theory for certain kinds of pictures, namely pictures that aim at “transparency”.