799 resultados para haptic grasp


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NARVAI, Paulo Capel et al. Validade científi ca de conhecimento epidemiológico gerado com base no estudo Saúde Bucal Brasil 2003. Caderno de saúde pública, Rio de Janeiro, v. 26, n. 4, p. 647-670, abr. 2010.

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Français L'observation ethnographique des politisations différentielles pendant une campagne électorale en contexte autoritaire changeant est un analyseur privilégié de plusieurs processus. Sur un plan empirique, elle donne à voir les modalités diversifiées d'appropriation du moment électoral par les acteurs, les tentatives d'ajustement d'une partie de la gauche marocaine à la perte de son électorat de granit et aux transformations du marché électoral, mais également un mouvement de fond : celui de l'inversion ponctuelle du principe censitaire, en lien avec la désertion des urnes par les plus dotés culturellement et matériellement et avec la mutation du vote urbain populaire. Sur un plan théorique, l'examen des tâtonnements en oeuvre - avant leur naturalisation - permet de poursuivre le dialogue entre les travaux sur le clientélisme politique et sur la politisation, au croisement des approches socio-historiques et de sociologie politique, en contextes autoritaires et démocratiques. Il montre l'intérêt de dépasser les oppositions entre conceptions restrictives et extensives de la politisation, pour se saisir processuellement et in situ des politisations différentielles des acteurs, des registres et des pratiques. English Differential Forms of Politicization and Mutual Acculturation in an Authoritarian ContextThe ethnographic observation of differential forms of politicization during an electoral campaign in a changing authoritarian context is an ideal means of analyzing a number of processes. Empirically, it enables us to observe the actors' diverse ways of appropriating the electoral moment, a Moroccan leftist party's attempts to adjust to the loss of its electoral base and the transformations of the electoral market. It also enables us to observe a one-time reversal of the symbolic voting restrictions, in correlation with the desertion of the polls by the those best equipped to participate, both culturally and materially, and with the transformation of the urban popular vote. In theoretical terms, examination of such ongoing processes - before their stabilization - allows us to follow the interplay between the work on political clientelism and on politicization, at the intersection of sociohistorical and political sociological approaches, in authoritarian and democratic contexts. It demonstrates the value of moving beyond the opposition between restrictive and extensive conceptions of politicization, to grasp the process in situ of differential forms of the politicization of actors, registers and practices.

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Users need to be able to address in-air gesture systems, which means finding where to perform gestures and how to direct them towards the intended system. This is necessary for input to be sensed correctly and without unintentionally affecting other systems. This thesis investigates novel interaction techniques which allow users to address gesture systems properly, helping them find where and how to gesture. It also investigates audio, tactile and interactive light displays for multimodal gesture feedback; these can be used by gesture systems with limited output capabilities (like mobile phones and small household controls), allowing the interaction techniques to be used by a variety of device types. It investigates tactile and interactive light displays in greater detail, as these are not as well understood as audio displays. Experiments 1 and 2 explored tactile feedback for gesture systems, comparing an ultrasound haptic display to wearable tactile displays at different body locations and investigating feedback designs. These experiments found that tactile feedback improves the user experience of gesturing by reassuring users that their movements are being sensed. Experiment 3 investigated interactive light displays for gesture systems, finding this novel display type effective for giving feedback and presenting information. It also found that interactive light feedback is enhanced by audio and tactile feedback. These feedback modalities were then used alongside audio feedback in two interaction techniques for addressing gesture systems: sensor strength feedback and rhythmic gestures. Sensor strength feedback is multimodal feedback that tells users how well they can be sensed, encouraging them to find where to gesture through active exploration. Experiment 4 found that they can do this with 51mm accuracy, with combinations of audio and interactive light feedback leading to the best performance. Rhythmic gestures are continuously repeated gesture movements which can be used to direct input. Experiment 5 investigated the usability of this technique, finding that users can match rhythmic gestures well and with ease. Finally, these interaction techniques were combined, resulting in a new single interaction for addressing gesture systems. Using this interaction, users could direct their input with rhythmic gestures while using the sensor strength feedback to find a good location for addressing the system. Experiment 6 studied the effectiveness and usability of this technique, as well as the design space for combining the two types of feedback. It found that this interaction was successful, with users matching 99.9% of rhythmic gestures, with 80mm accuracy from target points. The findings show that gesture systems could successfully use this interaction technique to allow users to address them. Novel design recommendations for using rhythmic gestures and sensor strength feedback were created, informed by the experiment findings.

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Relatório de estágio apresentado à Escola Superior de Educação de Paula Frassinetti para obtenção do grau de Mestre em Educação Pré-escolar

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The recent staging of Glasgow 2014 drew universal praise as the ‘Best Games Ever’. Yet the substantial undertaking of hosting the Commonwealth Games (CWG) was sold to the nation as more than just eleven days of sporting spectacle and cultural entertainment. Indeed, the primary strategic justification offered by policymakers and city leaders was the delivery of a bundle of positive and enduring benefits, so-called ‘legacy’. This ubiquitous and amorphous concept has evolved over time to become the central focus of contemporary hosting bids, reflecting a general public policy shift towards using major sporting mega events as a catalyst to generate benefits across economic, environmental and social dimensions, on a scale intended to be truly transformative. At the same time, the academy has drawn attention to the absence of evidence in support of the prevailing legacy rhetoric and raised a number of sociological concerns, not least the socially unequitable distribution of purported benefits. This study investigated how young people living in the core hosting zone related to, and were impacted upon, by the CWG and its associated developments and activities with reference to their socio-spatial horizons, the primary outcome of interest. An ‘ideal world’ Logic Model hypothesised that four mechanisms, identified from official legacy documents and social theories, would alter young people’s subjective readings of the world by virtue of broadening their social networks, extending their spatial boundaries and altering their mind sets. A qualitative methodology facilitated the gathering of situated and contextualised accounts of young people’s attitudes, perceptions, beliefs and behaviours relating to Glasgow 2014. In-depth interviews and focus groups were conducted before and after the Games with 26 young people, aged 14-16 years, at two schools in the East End. This approach was instrumental in privileging the interests of people ‘on the ground’ over those of city-wide and national stakeholders. The findings showed that young people perceived the dominant legacy benefit to be an improved reputation and image for Glasgow and the East End. Primary beneficiaries were identified by them as those with vested business interests e.g. retailers, restaurateurs, and hoteliers, as well as national and local government, with low expectations of personal dividends or ‘trickle down’ benefits. Support for Glasgow 2014 did not necessarily translate into individual engagement with the various cultural and sporting activities leading up to the CWG, including the event itself. The study found that young people who engaged most were those who had the ability to ‘read’ the opportunities available to them and who had the social, cultural and economic capital necessary to grasp them, with the corollary that those who might have gained most were the least likely to have engaged with the CWG. Doubts articulated by research participants about the social sustainability of Glasgow 2014 underscored inherent tensions between the short-lived thrill of the spectacle and the anticipated longevity of its impacts. The headline message is that hosting sporting mega events might not be an effective means of delivering social change. Aspirant host cities should consider more socially equitable alternatives to sporting mega events prior to bidding; and future host cities should endeavour to engage more purposefully with more young people over longer time frames.

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The aim of this thesis was to investigate, using the real-time test case of the 2014 Commonwealth Games, whether the realist synthesis methodology could contribute to the making of health policy in a meaningful way. This was done by looking at two distinct research questions: first, whether realist synthesis could contribute new insights to the health policymaking process, and second, whether the 2014 Commonwealth Games volunteer programme was likely to have any significant, measurable, impact on health inequalities experienced by large sections of the host population. The 2014 Commonwealth Games legacy laid out ambitious plans for the event, in which it was anticipated that it would provide explicit opportunities to impact positively on health inequalities. By using realist synthesis to unpick the theories underpinning the volunteer programme, the review identifies the population subgroups for whom the programme was likely to be successful, how this could be achieved and in what contexts. In answer to the first research question, the review found that while realist methods were able to provide a more nuanced exposition of the impacts of the Games volunteer programme on health inequalities than previous traditional reviews had been able to provide, there were several drawbacks to using the method. It was found to be resource-intensive and complex, encouraging the exploration of a much wider set of literatures at the expense of an in-depth grasp of the complexities of those literatures. In answer to the second research question, the review found that the Games were, if anything, likely to exacerbate health inequalities because the programme was designed in such a way that individuals recruited to it were most likely to be those in least need of the additional mental and physical health benefits that Games volunteering was designed to provide. The following thesis details the approach taken to investigate both the realist approach to evidence synthesis and the likelihood that the 2014 Games volunteer programme would yield the expected results.

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El artículo «La pintura que no se deja ver: la pintura avergonzada, la pintura escondida» relaciona una de las primeras obras de la artista Ángela de la Cruz ashamed (1995), con La pintura encarnada (1984) de Georges Didi-Huberman, ensayo que a su vez analiza La obra maestra desconocida (1837) de Honoré de Balzac. Entre Ángela de la Cruz, didi-Huberman y Balzac se establece un triángulo en torno al concepto cuadro-cuerpo. A través de una pintura, un ensayo filosófico y un relato, tres autores de tres tiempos distintos recuperan las mismas ideas de carne y piel pictórica y cuadro humanizado. Su objetivo: superar las barreras de representación en la pintura para crear un ser más allá del objeto pictórico. Sin embargo, cuanto más idealizan la pintura y más pretenden superar la pantallapictórica, más se desvanece el concepto de «cuadro»; cuanto más acercan el cuadro a ser, más se aleja de ser un cuadro y menos se permite el acceso a lo que representa. La persecución del ideal implica que el cuadro se vea sometido a su ocultación, al deterioro y a la destrucción de su imagen.

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A bio-economic modelling framework (GRASP-ENTERPRISE) was used to assess the implications of retaining woody regrowth for carbon sequestration on a case study beef grazing property in northern Australia. Five carbon farming scenarios, ranging from 0% to 100% of the property regrowth retained for carbon sequestration, were simulated over a 20-year period (1993–2012). Dedicating regrowth on the property for carbon sequestration reduced pasture (up to 40%) and herd productivity (up to 20%), and resulted in financial losses (up to 24% reduction in total gross margin). A net carbon income (income after grazing management expenses are removed) of $2–4 per t CO2-e was required to offset economic losses of retaining regrowth on a moderately productive (~8 ha adult equivalent–1) property where income was from the sale of weaners. A higher opportunity cost ($ t–1 CO2-e) of retaining woody regrowth is likely for feeder steer or finishing operations, with improved cattle prices, and where the substantial transaction and reporting costs are included. Although uncertainty remains around the price received for carbon farming activities, this study demonstrated that a conservatively stocked breeding operation can achieve positive production, environmental and economic outcomes, including net carbon stock. This study was based on a beef enterprise in central Queensland’s grazing lands, however, the approach and learnings are expected to be applicable across northern Australia where regrowth is present.

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La pintura de paisaje surge como corriente pictórica a finales del siglo XIX como un producto de una suma de intereses tanto académicos como científicos que desembocan en el interés por la naturaleza. Se enmarca dentro de un pensamiento político que sitúa a nuestro país en las expectativas de una nueva estructura socio cultural que pone énfasis en la libertad y en los derechos humanos, el derecho a la propiedad privada y sobre todo abre sus horizontes a la integración social y cultural, se ve la necesidad de comunicar e inspirarse en la propia tierra. En ésta investigación se pretende inquirir en los diferentes procesos que experimentan los artistas al contacto con la naturaleza; que se interiorizan a través de las distintas experiencias que tienen con las técnicas de proceso artístico, dentro de las cuales se capturan la luz, el espacio, la cromática, la vivencia que capta el espectador de las obras y las expectativas que tiene del artista. Este proceso puede o no ser artístico: algunas veces guiado por el academicismo, otras veces por encargo, con expectativas que muchas veces tienen fines políticos (poniendo en desmedro del valor académico, el tema). Obras que se traducen en una exigencia de la técnica, ya que se trata de captar la naturaleza, que de por sí es perfecta, en un prolijo uso casi perfeccionista de la misma, sin llegar a comprender que los individuos como las huellas dactilares, son diferentes en su interior; por lo que captarán la esencia de la naturaleza de acuerdo a las numerosas experiencias que hayan tenido con ella. La idea de pintar paisaje ya no está relacionada solamente con la observación sino con la perspectiva de representar el entorno de acuerdo a la manera muy particular y especial de cada artista.

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Notre étude porte le western crépusculaire et cherche plus précisément à extraire le « crépusculaire » du genre. L'épithète « crépusculaire », héritée du vocabulaire critique des années 1960 et 1970, définit généralement un nombre relativement restreint d'œuvres dont le récit met en scène des cowboys vieillissants dans un style qui privilégie un réalisme esthétique et psychologique, fréquemment associé à un révisionnisme historique, voire au « western pro-indien », mais qui se démarque par sa propension à filmer des protagonistes fatigués et dépassés par la marche de l'Histoire. Par un détour sur les formes littéraires ayant comme contexte diégétique l’Ouest américain (dime-novel et romans de la frontière), nous effectuons des allers et retours entre les formes épique et romanesque, entre l’Histoire et son mythe, entre le littéraire et le filmique pour mieux saisir la relation dyadique qu’entretient le western avec l’écriture, d’une part monumentale et d’autre part critique, de l’Histoire. Moins intéressée à l’esthétique des images qu’aux aspects narratologiques du film pris comme texte, notre approche tire profit des analyses littéraires pour remettre en cause les classifications étanches qui ont marqué l’évolution du western cinématographique. Nous étudions, à partir des intuitions d’André Bazin au sujet du sur-western, les modulations narratives du western ainsi que l’émergence d’une conscience critique à partir de ses héros mythologiques (notamment le cow-boy). Notre approche est à la fois épistémologique et transhistorique en ce qu’elle cherche à dégager du western crépusculaire un genre au-delà des genres, fondé sur une incitation à la narrativisation crépusculaire de la part du spectateur. Cette dernière, concentrée par une approche deleuzienne de l’image-cristal, renvoie non plus seulement à une conception existentialiste du personnage dans l’Histoire, mais aussi à une mise en relief pointue du hors-cadre du cinéma, moment de clairvoyance à la fois pragmatique et historicisant que nous définissons comme une image-fin, une image chronogénétique relevant de la contemporanéité de ses figures et de leurs auteurs.

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This thesis proposes a generic visual perception architecture for robotic clothes perception and manipulation. This proposed architecture is fully integrated with a stereo vision system and a dual-arm robot and is able to perform a number of autonomous laundering tasks. Clothes perception and manipulation is a novel research topic in robotics and has experienced rapid development in recent years. Compared to the task of perceiving and manipulating rigid objects, clothes perception and manipulation poses a greater challenge. This can be attributed to two reasons: firstly, deformable clothing requires precise (high-acuity) visual perception and dexterous manipulation; secondly, as clothing approximates a non-rigid 2-manifold in 3-space, that can adopt a quasi-infinite configuration space, the potential variability in the appearance of clothing items makes them difficult to understand, identify uniquely, and interact with by machine. From an applications perspective, and as part of EU CloPeMa project, the integrated visual perception architecture refines a pre-existing clothing manipulation pipeline by completing pre-wash clothes (category) sorting (using single-shot or interactive perception for garment categorisation and manipulation) and post-wash dual-arm flattening. To the best of the author’s knowledge, as investigated in this thesis, the autonomous clothing perception and manipulation solutions presented here were first proposed and reported by the author. All of the reported robot demonstrations in this work follow a perception-manipulation method- ology where visual and tactile feedback (in the form of surface wrinkledness captured by the high accuracy depth sensor i.e. CloPeMa stereo head or the predictive confidence modelled by Gaussian Processing) serve as the halting criteria in the flattening and sorting tasks, respectively. From scientific perspective, the proposed visual perception architecture addresses the above challenges by parsing and grouping 3D clothing configurations hierarchically from low-level curvatures, through mid-level surface shape representations (providing topological descriptions and 3D texture representations), to high-level semantic structures and statistical descriptions. A range of visual features such as Shape Index, Surface Topologies Analysis and Local Binary Patterns have been adapted within this work to parse clothing surfaces and textures and several novel features have been devised, including B-Spline Patches with Locality-Constrained Linear coding, and Topology Spatial Distance to describe and quantify generic landmarks (wrinkles and folds). The essence of this proposed architecture comprises 3D generic surface parsing and interpretation, which is critical to underpinning a number of laundering tasks and has the potential to be extended to other rigid and non-rigid object perception and manipulation tasks. The experimental results presented in this thesis demonstrate that: firstly, the proposed grasp- ing approach achieves on-average 84.7% accuracy; secondly, the proposed flattening approach is able to flatten towels, t-shirts and pants (shorts) within 9 iterations on-average; thirdly, the proposed clothes recognition pipeline can recognise clothes categories from highly wrinkled configurations and advances the state-of-the-art by 36% in terms of classification accuracy, achieving an 83.2% true-positive classification rate when discriminating between five categories of clothes; finally the Gaussian Process based interactive perception approach exhibits a substantial improvement over single-shot perception. Accordingly, this thesis has advanced the state-of-the-art of robot clothes perception and manipulation.

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In recent years, more and more Chinese films have been exported abroad. This thesis intends to explore the subtitling of Chinese cinema into English, with Zhang Yimou’s films as a case study. Zhang Yimou is arguably the most critically and internationally acclaimed Chinese filmmaker, who has experimented with a variety of genres of films. I argue that in the subtitling of his films, there is an obvious adoption of the domestication translation strategy that reduces or even omits Chinese cultural references. I try to discover what cultural categories or perspectives of China are prone to the domestication of translation and have formulated five categories: humour, politeness, dialect, history and songs and the Peking Opera. My methodology is that I compare the source Chinese dialogue lines with the existing English subtitles by providing literal translations of the source lines, and I will also give my alternative translations that tend to retain the source cultural references better. I also speculate that the domestication strategy is frequently employed by subtitlers possibly because the subtitlers assume the source cultural references are difficult for target language subtitle readers to comprehend, even if they are translated into a target language. However, subtitle readers are very likely to understand more than what the dialogue lines and the target language subtitles express, because films are multimodal entities and verbal information is not the only source of information for subtitle readers. The image and the sound are also significant sources of information for subtitle readers who are constantly involved in a dynamic film-watching experience. They are also expected to grasp visual and acoustic information. The complete omission or domestication of source cultural references might also affect their interpretation of the non-verbal cues. I also contemplate that the translation, which frequently domesticates the source culture carried out by a translator who is also a native speaker of the source language, is ‘submissive translation’.

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Dissertação (mestrado)—Universidade de Brasília, Instituto de Ciências Sociais, Departamento de Sociologia, 2015.

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Pour minoré et ignoré qu’il fût, le roman policier est désormais légitimé par l’institution littéraire. À parcourir les livres publiés dans la Caraïbe francophone, le genre demeure dans la marge de cette production [issue de la Caraïbe francophone (Haïti, Guadeloupe, Guyane française, Martinique)]. Quoiqu’il en soit, on notera que les années 1990 ont inauguré une véritable éclosion de publications de polars. Tout cela augure d’une acclimatation de ce genre qui ne s’accompagne pas moins de questionnements sur les spécificités éventuelles du polar caribéen francophone. Se situe-t-il dans la convention? Tente-il au contraire d’établir une distanciation avec la norme? C’est pour répondre à ces interrogations que cette thèse se propose d’explorer les enjeux de l’appropriation du polar provenant de cette aire géographique. À l’aune de la poétique des genres, de la sociocritique et de l’intermédialité, un corpus composé de quatorze romans fait l’objet d’une étude approfondie. Dans le premier chapitre, un bref récapitulatif permet de situer les œuvres à l’étude dans l’histoire littéraire du genre tout en soulignant l’adaptation du polar dans la Caraïbe de langue française. Il en ressort qu’un nombre significatif d’écrivains, attentifs à la latence du magico-religieux dans leur société, mettent en scène le surnaturel alors que le roman policier conventionnel plébiscite la méthode logico-déductive. C’est la raison pour laquelle le second chapitre s’intéresse à l’usage de l’inexplicable et son rapport avec le cartésianisme. Quant au troisième chapitre, il se penche sur un topos du genre : la violence telle qu’elle surgit dans ses dimensions commémoratives et répétitives de l’histoire tumultueuse de la Caraïbe. Notre corpus tend à relier la notion du crime, fut-il d’emprise originelle, à l’histoire post-coloniale. Dans la mesure où les personnages constituent un élément clé du genre, ils sont sondés, dans un quatrième chapitre, en regard de la critique sociale qu’ils incarnent et véhiculent. Le dernier chapitre cherche à circonscrire l’intermédialité qui structure et qualifie l’œuvre au sein du roman policier depuis sa genèse. Somme toute, ces divers axes contribuent à mieux comprendre le phénomène de transposition du polar dans cette région du monde.

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Au cours du siècle dernier, des améliorations au niveau des conditions de vie ainsi que des avancées importantes dans les sciences biomédicales ont permis de repousser les frontières de la vie. Jusqu’au début du XXe Siècle, la mort était un processus relativement bref, survenant à la suite de maladies infectieuses et avait lieu à la maison. À présent, elle survient plutôt après une longue bataille contre des maladies incurables et des afflictions diverses liées à la vieillesse et a le plus souvent lieu à l’hôpital. Pour comprendre la souffrance du malade d’aujourd’hui et l’aborder, il faut comprendre ce qu’engendre comme ressenti ce nouveau contexte de fin de vie autant pour le patient que pour le clinicien qui en prend soin. Cette thèse se veut ainsi une étude exploratoire et critique des enjeux psychologiques relatifs à cette mort contemporaine avec un intérêt premier pour l’optimisation du soulagement de la souffrance existentielle du patient dans ce contexte. D’abord, je m’intéresserai à la souffrance du patient. À travers un examen critique des écrits, une définition précise et opérationnelle, comportant des critères distinctifs, de ce qu’est la souffrance existentielle en fin de vie sera proposée. Je poserai ainsi l’hypothèse que la souffrance peut être définie comme une forme de construction de l’esprit s’articulant autour de trois concepts : intégrité, altérité et temporalité. D’abord, intégrité au sens où initialement l’individu malade se sent menacé dans sa personne (relation à soi). Ensuite, altérité au sens où la perception de ses conditions extérieures a un impact sur la détresse ressentie (relation à l’Autre). Et finalement, temporalité au sens où l’individu souffrant de façon existentielle semble bien souvent piégé dans un espace-temps particulier (relation au temps). Ensuite, je m’intéresserai à la souffrance du soignant. Dans le contexte d’une condition terminale, il arrive que des interventions lourdes (p. ex. : sédation palliative profonde, interventions invasives) soient discutées et même proposées par un soignant. Je ferai ressortir diverses sources de souffrance propres au soignant et générées par son contact avec le patient (exemples de sources de souffrance : idéal malmené, valeurs personnelles, sentiment d’impuissance, réactions de transfert et de contre-transfert, identification au patient, angoisse de mort). Ensuite, je mettrai en lumière comment ces dites sources de souffrance peuvent constituer des barrières à l’approche de la souffrance du patient, notamment par l’influence possible sur l’approche thérapeutique choisie. On constatera ainsi que la souffrance d’un soignant contribue par moment à mettre en place des mesures visant davantage à l’apaiser lui-même au détriment de son patient. En dernier lieu, j'élaborerai sur la façon dont la rencontre entre un soignant et un patient peut devenir un espace privilégié afin d'aborder la souffrance. J'émettrai certaines suggestions afin d'améliorer les soins de fin de vie par un accompagnement parvenant à mettre la technologie médicale au service de la compassion tout en maintenant la singularité de l'expérience du patient. Pour le soignant, ceci nécessitera une amélioration de sa formation, une prise de conscience de ses propres souffrances et une compréhension de ses limites à soulager l'Autre.