799 resultados para haptic grasp


Relevância:

10.00% 10.00%

Publicador:

Resumo:

This paper reports on a study of a curricular intervention for pupils (age 10-13 years) in the UK aimed at supporting critical engagement with science based media reports. In particular the study focused on core elements of knowledge, skills and attitudes identified in previous studies that characterize critical consumers of science presented as news. This was an empirical study based on classroom observation. Data included responses from individual pupils, in addition video recording of group activity and intentional conversations between pupils and teachers were scrutinised. Analysis focused on core tasks relating to different elements of critical reading. Pupils demonstrated a grasp of questioning and evaluating text, however the capacity to translate this experience in support of a critical response to a media report with a science component is limited in assessing the credibility of text and as an element in critical reading.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

This article investigates the distribution of Italian horror cinema in the age of video streaming, analyzing its presence and categorization on the platform Lovefilm Instant UK, in order to investigate the importance of ‘niche’ in what is known as the long tail of online distribution and the online availability of exploitation films. I argue that looking at the streaming presence of Italian horror and comparing it to its prior distribution on home video formats (in particular VHS and DVD) we can grasp how distribution and access have shaped the understanding of the genre. In particular, I address the question of the categorization of the films made by the S-VOD services and the limits of streaming distribution, such as lack of persistency in availability and the need of enhanced curatorship.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

We report calculations of energy levels and radiative rates (A-values) for transitions in Cr-like Co IV and Ni V. The quasi-relativistic Hartree-Fock (QRHF) code is adopted for calculating the data although grasp (general-purpose relativistic atomic structure package) and flexible atomic code (fac) have also been employed for comparison purposes. No radiative rates are available in the literature to compare with our results, but our calculated energies are in close agreement with those compiled by NIST for a majority of the levels. However, there are discrepancies for a few levels of up to 3%. The A-values are listed for all significantly contributing E1, E2 and M1 transitions, and the corresponding lifetimes reported, although unfortunately no previous theoretical or experimental results exist to compare with our data.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Calculations of energy levels, radiative rates and lifetimes are reported for eight ions of tungsten, i.e. S-like (W LIX) to F-like (W LXVI). A large number of levels have been considered for each ion and extensive configuration interaction has been included among a range of configurations. For the calculations, the general-purpose relativistic atomic structure package (. grasp) has been adopted, and radiative rates (as well as oscillator strengths and line strengths) are listed for all E1, E2, M1, and M2 transitions of the ions. Comparisons have been made with earlier available experimental and theoretical energies, although these are limited to only a few levels for most ions. Therefore for additional accuracy assessments, particularly for energy levels, analogous calculations have been performed with the flexible atomic code (. fac).

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Energies and lifetimes are reported for the eight Br-like ions with 43≤Z≤50, namely Tc IX, Ru X, Rh XI, Pd XII, Ag XIII, Cd XIV, In XV, and Sn XVI. Results are listed for the lowest 375 levels, which mostly belong to the 4s24p5, 4s24p44ℓ, 4s4p6,4s24p45ℓ, 4s24p34d2, 4s4p54ℓ, and 4s4p55ℓ configurations. Extensive configuration interaction among 39 configurations (generating 3990 levels) has been considered and the general-purpose relativistic atomic structure package (grasp) has been adopted for the calculations. Radiative rates are listed for all E1, E2, M1, and M2 transitions involving the lowest 375 levels. Previous experimental and theoretical energies are available for only a few levels of three, namely Ru X, Rh XI and Pd XII. Differences with the measured energies are up to 4% but the present results are an improvement (by up to 0.3 Ryd) in comparison to other recently reported theoretical data. Similarly for radiative rates and lifetimes, prior results are limited to those involving only 31 levels of the 4s24p5, 4s24p44d, and 4s4p6 configurations for the last four ions. Moreover, there are generally no discrepancies with our results, although the larger calculations reported here differ by up to two orders of magnitude for a few transitions.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Calculations of energy levels, radiative rates and lifetimes are reported for 17 F-like ions with 37≤Z≤53. For brevity, results are only presented among the lowest 113 levels of the 2s22p5, 2s2p6, 2s22p43ℓ, 2s2p53ℓ, and 2p63ℓ configurations, although the calculations have been performed for up to 501 levels in each ion. The general-purpose relativistic atomic structure package (grasp) has been adopted for the calculations, and radiative rates (along with oscillator strengths and line strengths) are listed for all E1, E2, M1, and M2 transitions of the ions. Comparisons are made with earlier available experimental and theoretical energies, although these are limited to only a few levels for most ions. Therefore for additional accuracy assessments, particularly for energy levels, analogous calculations have been performed with the Flexible Atomic Code (fac), for up to 72 259 levels. Limited previous results are available for radiative rates for comparison purposes, and no large discrepancy is observed for any transition and/or ion.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

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.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

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.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

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.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Ce mémoire présente la conception, le contrôle et la validation expérimentale d’une boussole haptique servant à diriger les utilisateurs aux prises avec une déficience visuelle, et ce, dans tous les environnements. La revue de littérature décrit le besoin pour un guidage haptique et permet de mettre en perspective cette technologie dans le marché actuel. La boussole proposée utilise le principe de couples asymétriques. Son design est basé sur une architecture de moteur à entraînement direct et un contrôle en boucle ouverte étalonné au préalable. Cette conception permet d’atteindre une vaste plage de fréquences pour la rétroaction haptique. Les propriétés mécaniques de l’assemblage sont évaluées. Puis, l’étalonnage des couples permet d’assurer que le contrôle en boucle ouverte produit des couples avec une précision suffisante. Un premier test avec des utilisateurs a permis d’identifier que les paramètres de fréquence entre 5 et 15 Hz combinés avec des couples au-delà de 40 mNm permettent d’atteindre une efficacité intéressante pour la tâche. L’expérience suivante démontre qu’utiliser une rétroaction haptique proportionnelle à l’erreur d’orientation améliore significativement les performances. Le concept est ensuite éprouvé avec dix-neuf sujets qui doivent se diriger sur un parcours avec l’aide seule de cette boussole haptique. Les résultats montrent que tous les sujets ont réussi à rencontrer tous les objectifs de la route, tout en maintenant des déviations latérales relativement faibles (0:39 m en moyenne). Les performances obtenues et les impressions des utilisateurs sont prometteuses et plaident en faveur de ce dispositif. Pour terminer, un modèle simplifié du comportement d’un individu pour la tâche d’orientation est développé et démontre l’importance de la personnalisation de l’appareil. Ce modèle est ensuite utilisé pour mettre en valeur la stratégie d’horizon défilant pour le placement de la cible intermédiaire actuelle dans un parcours sur une longue distance.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Thesis (Ph.D.)--University of Washington, 2016-07

Relevância:

10.00% 10.00%

Publicador:

Resumo:

This article expands on an earlier concept of horror autotoxicus linked to digital contagions of spam and network Virality.1 It aims to present, as such, a broader conception of cosmic topologies of imitation (CTI) intended to better grasp the relatively new practices of social media marketing. Similar to digital autotoxicity, CTI provide the perfect medium for sharing while also spreading contagions that can potentially contaminate the medium itself. However, whereas digital contagions are perhaps limited to the toxicity of a technical layer of information viruses, the contagions of CTI are an all pervasive auto-toxicity which can infect human bodies and technologies increasingly in concert with each other. This is an exceptional autotoxicus that significantly blurs the immunological line of exemption between self and nonself, and potentially, the anthropomorphic distinction between individual self and collective others.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Tem-se verificado alguma discussão na literatura sobre o decréscimo da importância do Marketing nas empresas. De acordo com alguns estudos, apenas 10% do tempo é dedicado ao departamento de Marketing nas suas reuniões gerais. O estudo de caso é dedicado a uma empresa portuguesa, Oliveira & Irmão, líder ibérica de produtos de instalação sanitária que atua no mercado há 60 anos. Esta empresa exporta 80% da sua produção e tornou-se reconhecida por ser uma das empresas mais inovadoras da sua àrea, contando atualmente com 40 patentes ativas. Neste estudo será analisada a influência do departamento de Marketing numa empresa com gestão familiar e onde a satisfação do cliente é o seu objetivo primário. Para compreender as alterações que se verificaram desde a implementação do Departamento de Marketing, foram realizadas quatro entrevistas aos diretores da empresa (Departamento Financeiro, Inovação, Comercial e Marketing) para compreender, através do seu ponto de vista, quais as implicações e modificações principais que sentiram. Verificou-se que apesar do departamento de Marketing ser recente na empresa este já realizou algumas alterações notórias a nível interno (comunicação interna) e a nível externo (posicionamento da marca no mercado). Contudo, um dos grandes entraves tem sido a dificuldade em participar no processo desenvolvimento de novos produtos, que até então é coordenado pelo departamento de Inovação e departamento Comercial. A autora do estudo propõe um processo em que o departamento de Marketing fornece os inputs para o desenvolvimento de novos produtos, de modo a satisfazer as necessidades dos clientes.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

This paper aims to investigate the ways in which context-based sonic art is capable of furthering a knowledge and understanding of place based on the initial perceptual encounter. How might this perceptual encounter operate in terms of a sound work’s affective dimension? To explore these issues I draw upon James J. Gibson’s ecological theory of perception and Gernot Böhme’s concept of an ‘aesthetic of atmospheres’. Within the ecological model of perception an individual can be regarded as a ‘perceptual system’: a mobile organism that seeks information from a coherent environment. I relate this concept to notions of the spatial address of environmental sound work in order to explore (a) how the human perceptual apparatus relates to the sonic environment in its mediated form and (b) how this impacts on individuals’ ability to experience such work as complex sonic ‘environments’. Can the ecological theory of perception aid the understanding of how the listener engages with context-based work? In proposing answers to this question, this paper advances a coherent analytical framework that may lead us to a more systematic grasp of the ways in which individuals engage aesthetically with sonic space and environment. I illustrate this methodology through an examination of some of the recorded work of sound artist Chris Watson.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Current Ambient Intelligence and Intelligent Environment research focuses on the interpretation of a subject’s behaviour at the activity level by logging the Activity of Daily Living (ADL) such as eating, cooking, etc. In general, the sensors employed (e.g. PIR sensors, contact sensors) provide low resolution information. Meanwhile, the expansion of ubiquitous computing allows researchers to gather additional information from different types of sensor which is possible to improve activity analysis. Based on the previous research about sitting posture detection, this research attempts to further analyses human sitting activity. The aim of this research is to use non-intrusive low cost pressure sensor embedded chair system to recognize a subject’s activity by using their detected postures. There are three steps for this research, the first step is to find a hardware solution for low cost sitting posture detection, second step is to find a suitable strategy of sitting posture detection and the last step is to correlate the time-ordered sitting posture sequences with sitting activity. The author initiated a prototype type of sensing system called IntelliChair for sitting posture detection. Two experiments are proceeded in order to determine the hardware architecture of IntelliChair system. The prototype looks at the sensor selection and integration of various sensor and indicates the best for a low cost, non-intrusive system. Subsequently, this research implements signal process theory to explore the frequency feature of sitting posture, for the purpose of determining a suitable sampling rate for IntelliChair system. For second and third step, ten subjects are recruited for the sitting posture data and sitting activity data collection. The former dataset is collected byasking subjects to perform certain pre-defined sitting postures on IntelliChair and it is used for posture recognition experiment. The latter dataset is collected by asking the subjects to perform their normal sitting activity routine on IntelliChair for four hours, and the dataset is used for activity modelling and recognition experiment. For the posture recognition experiment, two Support Vector Machine (SVM) based classifiers are trained (one for spine postures and the other one for leg postures), and their performance evaluated. Hidden Markov Model is utilized for sitting activity modelling and recognition in order to establish the selected sitting activities from sitting posture sequences.2. After experimenting with possible sensors, Force Sensing Resistor (FSR) is selected as the pressure sensing unit for IntelliChair. Eight FSRs are mounted on the seat and back of a chair to gather haptic (i.e., touch-based) posture information. Furthermore, the research explores the possibility of using alternative non-intrusive sensing technology (i.e. vision based Kinect Sensor from Microsoft) and find out the Kinect sensor is not reliable for sitting posture detection due to the joint drifting problem. A suitable sampling rate for IntelliChair is determined according to the experiment result which is 6 Hz. The posture classification performance shows that the SVM based classifier is robust to “familiar” subject data (accuracy is 99.8% with spine postures and 99.9% with leg postures). When dealing with “unfamiliar” subject data, the accuracy is 80.7% for spine posture classification and 42.3% for leg posture classification. The result of activity recognition achieves 41.27% accuracy among four selected activities (i.e. relax, play game, working with PC and watching video). The result of this thesis shows that different individual body characteristics and sitting habits influence both sitting posture and sitting activity recognition. In this case, it suggests that IntelliChair is suitable for individual usage but a training stage is required.