472 resultados para haptic grasping


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Background. Few studies have investigated the experiences of living with pelvic girdle pain (PGP) and its impact on pregnant women’s lives. To address this gap in knowledge, this study investigates the experiences of women living with PGP during pregnancy. Methods. A purposive sample, of nine pregnant women with diagnosed PGP, were interviewed about their experiences. Interviews were recorded, transcribed to text and analysed using a Grounded Theory approach. Results. The core category that evolved from the analysis of experiences of living with PGP in pregnancy was “struggling with daily life and enduring pain”. Three properties addressing the actions caused by PGP were identified: i) grasping the incomprehensible; ii) balancing support and dependence and iii) managing the losses. These experiences expressed by the informants constitute a basis for the consequences of PGP: iv) enduring pain; v) being a burden; vi) calculating the risks and the experiences of the informants as vii) abdicating as a mother. Finally, the informants’ experiences of the consequences regarding the current pregnancy and any potential future pregnancies is presented in viii) paying the price and reconsidering the future. A conceptual model of the actions and consequences experienced by the pregnant informants living with PGP is presented. Conclusions. PGP during pregnancy greatly affects the informant’s experiences of her pregnancy, her roles in relationships, and her social context. For informants with young children, PGP negatively affects the role of being a mother, a situation that further strains the experience. As the constant pain disturbs most aspects of the lives of the informants, improvements in the treatment of PGP is of importance as to increase the quality of life. This pregnancy-related condition is prevalent and must be considered a major public health concern during pregnancy.

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Digital media, corporate database applications and intranets provide efficient ways to create, store and deliver information and educational services. However some academics perceive new workload and other constraints eroding the potency of these technologies. Proposed corporate level information management systems for digital objects and their metadata are new complexities entering academicsÕ thoughts about using online multimedia.

Few staff understand digital multimedia concepts and fewer still, the systems designed to deal with IP management, copyright law compliance and the tracking of digital resource creation processes. Faltering staff enthusiasm warns of their need to experience working models and tangible benefits from these new directions. A project in Deakin's Faculty of Education provides a case study showing how QuickTime is helping academics understand, and increase their use of, multimedia in e-learning environments with an integrated library of digital resources with metadata.

We also report our experience of QuickTime in creating interactive learning objects using multi-tracks. We discuss our idea of theatricks as a performance drawcard - people will come! There is orchestration of multimedia and QuickTime conducts the events, its flexible functionalities providing a safer development environment for solving problems and grasping opportunities.

While difficult for some academics to comprehend, scripting automation and database connectivity through intelligent interfaces might facilitate QuickTime's use in building integrated learning environments with academics. These ideas are considered in relation to staff development, central to the case study project.

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Currere reconceptualises curriculum as understanding learning experiences. This paper outlines potentials for pictures in re-envisioning currere for a world growing in complexity.
Vision, as the privileged sense for acquiring knowledge, is often regarded deterministically - seeing is believing. But, as sophisticated technology becomes more significant in the control of knowledge systems - as 'reality' becomes more virtual - personal visual experiences are becoming harder to generate, interpret and authenticate. Knowledge technology is increasing exposure to 'mediated messages' and diminishing the ability to validate them. I see this as problematic for the authenticity of learning within a world that is intensifying in its complexity.
My work reaches beyond determinist/technological views of learning to explore envisioning-experiences within learning. I am particularly interested in ways that enacting with pictures embodies individuals, communities, and the world within understandings of complexity and authenticity. In practical terms, this involves interactively and reflexively 'doing pictures' as a personal process in learning for deeper understanding.
The paper explores three issues:
* Text and pictures: learning, thinking, and knowing, as textual dominions that marginalise pictures.
* Enactivism and learning: an approach to learning for complex communities that embodies mindful thinking within haptic experiences.
* Enactive picturing: laying a personal processual path with learning that complexifies understandings for authenticating experiences - doing-walking-talking - with pictures.

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A highly programmable electro-mechanical surface is developed using an effective array of individual pins arranged in a gridform. Each pin can be independently raised or lowered to create a wide range of contoured surfaces. It was found that as the number of elements increased. high levels of accuracy could still be achieved. however the required processing power increased logarithmically. This finding was attributed to the large amounts of data being passed. and subsequently led to a second focus; various methods of data management and flow control techniques within large-scale multi elemental systems. Results indicated a large potential for highly programmable surfaces within industry to provide a computer controlled surface for rapid prototyping. The research also revealed the potential for such a device to be used as a HID within Haptic applications.

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Education provides unique opportunities for individuals to develop their full character as Australian citizens who can play a part in the shaping of the future. All educational settings have an important role to play in bridging differences and promoting mutual respect, tolerance and understanding between people of different races, cultures, and religions. The curriculum is one component of the wider educational milieu that should be 'an enabling mechanism that nurtures adjustment to change, and simultaneously provides a roadmap of expectation' (Bruniges, 2005, p.15). As the rate and diversity of both local and global change accelerates, education continues to be faced with a multiplicity of challenges. The ways in which we respond to this will influence both the society and the curriculum that we design, implement and evaluate. Currently music educators implementing the Victorian Essential Learning Standards (VELS) are faced with the challenge of developing multicultural practices that align with both curriculum initiatives and create authentic experiences for students. As in the well-known story of the blind men and the elephant, teachers are faced with resources that offer only a shallow introduction to what is a multifaceted field. The question we pose is: 'How do educators embrace a vast range of cultural and social dimensions in our school music programmes without being like a blind man, grasping only one perspective of an extensive and complex whole?'

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This paper presents a system of systems approach to threat detection through integration of heterogeneous independently operable systems. The approach is presented on a realistic situation where a human-controlled base robot, swarm robot(s), and sensors work together to obtain a decision about a possible threat in the environment. The base robot is remotely operated by a human using a haptic control system. The swarm robot(s) are autonomous and can accept directives from the base robot. Finally, sensors directly communicate with (report to) the base robot. In this scenario, heterogeneous systems and human interact in a system of systems architecture. With the inclusion of human expert and sensor verification of swarm robots, the system can successfully perform the threat detection and reduce the false alarms. Finally, a system of systems simulation framework including a base robot, a swarm robot, and two sensors is presented in addition to an experimental evaluation of the proposed SoS architecture

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Traditionally, the control system of a modern teleoperated mobile robot consists of one or more two-dimensional joysticks placed on a control interface. While this simplistic interface allows an operator to remotely drive the platform, feedback is limited to visual information supplied by on-board cameras. Significant advances in the field of haptics have the potential to meaningfully enhance situational awareness of a remote robot. The focus of this research is the augmentation of Deakin University's OzBot trade MkIV mobile platform to include haptic control methodologies. Utilising the platform's inertial measurement unit, a remote operator has the ability to gain knowledge of the vehicle's operating performance and terrain while supplying a finer level of control to the drive motors. Our development of a generic multi-platform ActiveX allows the easy implementation of haptic force feedback to many computer based robot controllers. Furthermore, development of communication protocols has progressed with Joint Architecture for Unmanned Systems (JAUS) compliance in mind. The haptic force control algorithms are presented along with results highlighting the benefits of haptic operator feedback on the MklV OzBot trade chassis.

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The human hand provides proof that the anthropomorphic configuration, properly controlled, is successful and gives a target to aim at for artificial hand/robot hand researchers. In this paper we discuss the human hand physiology and grasp capabilities. We then provide design on a double thumb, two finger robotic hand. Architecture of the hand, fingers and their dynamic modelling is discussed. Finally, results are reported on the performance of a finger in the hand.

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There is growing awareness of the benefits of rehabilitation both in Australia and overseas. While the provision of rehabilitation services is not new, recognition of this type of health service as an integral part of health care has been linked to changes in the provision of acute care services, advances in medical technology, improvements in the management of trauma and an ageing population. Despite this, little attention has been paid to nursing's contribution to patient rehabilitation in Australia. The aim of this grounded theory study, therefore, was to collect and analyse nurses' reports of their contributions to patient rehabilitation and to describe and analyse contextual factors influencing that contribution. Data were collected during interviews with registered and enrolled nurses working in five inpatient rehabilitation units in New South Wales and during observation of the nurses' everyday practice. A total of 53 nurses participated in the study, 35 registered nurses and 18 enrolled nurses. Grounded theory, informed by the theoretical perspective of symbolic interactionism, was used to guide data analysis, the ongoing collection of data and the generation of a substantive theory. The findings revealed six major categories. One was an everyday problem labelled incongruence between nurses' and patients' understandings and expectations of rehabilitation. Another category, labelled coaching patients to self-care, described how nurses independently negotiated the everyday problem of incongruence. The remaining four categories captured conditions in the inpatient context which influenced how nurses could contribute to patient rehabilitation. Two categories, labelled segregation: divided and dividing work practices between nursing and allied health and role ambiguity, were powerful in shaping nursing's contribution as they acted individually and synergistically to constrain nursing's contribution to patient rehabilitation. The other two categories, labelled distancing to manage systemic constraints and grasping the nettle to realise nursing's potential, represent the mutually exclusive strategies nurses used in response to segregation and role ambiguity. From exploration of the relationship between the six categories, the core category and an interactive grounded theory called opting in and opting out emerged. In turn, this grounded theory reveals nursing's contribution to inpatient rehabilitation as well as contextual conditions constraining that contribution. The significance of these findings is made manifest through their contribution to the advancement of nursing knowledge and through implications for nursing practice and education, rehabilitation service delivery and research.

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This thesis describes technology developed by the author enabling trainee surgeons to perform needle insertion procedures with force feedback (haptics) on a virtual patient. Addition of the sense of touch to medical simulation is arguably the most important step forward in the evolution of haptic technology to this day.

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This paper reports on robotic and haptic technologies and capabilities developed for the law enforcement and defence community within Australia by the Centre for Intelligent Systems Research (CISR). The OzBot series of small and medium surveillance robots have been designed in Australia and evaluated by law enforcement and defence personnel to determine suitability and ruggedness in a variety of environments. Using custom developed digital electronics and featuring expandable data busses including RS485, I2C, RS232, video and Ethernet, the robots can be directly connected to many off the shelf payloads such as gas sensors, x-ray sources and camera systems including thermal and night vision. Differentiating the OzBot platform from its peers is its ability to be integrated directly with haptic technology or the 'haptic bubble' developed by CISR. Haptic interfaces allow an operator to physically 'feel' remote environments through position-force control and experience realistic force feedback. By adding the capability to remotely grasp an object, feel its weight, texture and other physical properties in real-time from the remote ground control unit, an operator's situational awareness is greatly improved through Haptic augmentation in an environment where remote-system feedback is often limited.

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As the portable entertainment and mobility technologies migrate into the car, driver distraction has become recognized as a major factor in road crashes around the world. To help alert drivers to their distraction, active safety technologies such as lane departure warning systems and collision avoidance systems are being implemented. One issue with the implementation of yet another technology into the vehicle is how to cut through the competing demands of the mobile phone, navigation systems and other technologies. Haptic alerts present just such a method that may enable the system to short-circuit the normal auditory or visual communication channels. This paper presents a low cost haptic steering wheel controller that has been designed developed and tested and may be used as a communication device by a lane departure, collision avoidance, or other type of safety system.

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Purpose – The purpose of this paper is to examine Western consumers’ levels of general environmental knowledge and specific knowledge related to carbon offsets and the relationships between specific types of environmental knowledge and consumers’ related behaviors.

Design/methodology/approach – The study surveyed consumers from Australia (n ¼ 345) and the USA (n ¼ 340) who were sourced through national online panels. The analysis looks at differences between knowledge and behaviors, both across the samples as well as whether there are differences between consumers with high and low levels of environmental and carbon offset knowledge, and whether demographics impact on knowledge levels.

Findings – The results found that consumers had higher levels of general knowledge than carbon offset knowledge and the two types of knowledge were not related. ANOVA results considering country differences and demographic factors found that general knowledge was affected by education, age and gender, with carbon knowledge being affected by education. Environmental behavior was affected by age and gender as well, and no demographic factors influenced carbon-related behavior. Respondent’s location (i.e. USA or Australia) did not influence knowledge or behaviors, but interacted with education in regard to carbon knowledge and behavior.

Social implications – This research suggests that consumers are not acting on their carbon knowledge, which may be due to the debate surrounding carbon issues and/or because the information is based on complex scientific foundations, which the average consumer may have difficulty grasping, regardless of country.

Originality/value – This is one of the first pieces of academic research to explore consumers’ understanding of carbon-related information and how this knowledge impacts behavior. It also proposes a measure for evaluating carbon offset knowledge, which could be used to broaden environmental knowledge assessments.

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In exercising vision we employ strategies to perceive space and to distinguish the objects of attention. Some processes however remain invisible to us; how we process binocular vision; and how we resolve vision in motion. This work images invisible motion perspective. Revelation of invisible mechanisms of vision exposes the haptic qualities of sight and their contribution to proprioception and ʻaffordanceʼ. Figuring the ʻvortex of visionʼ also releases symbolic and metaphoric potentials. This innovative outcome of practical research develops imagery which depicts relative movement in space using the principles of motion perspective (Herschel) and optic flow (J. J. Gibson); the locative awareness of volumes in space through the dimensions of time and space presented in 2D imagery. The mural scale (3.5 metres) work presented in 'Circle', a group show of work around the idea of 'the circle' curated by Melinda Capp is derived from a large production of digital photographs made in the London Underground. In this work, the circle is associated with the orbit of the commuter which bends around the twin poles of home and employment, work and rest, circulating in an ellipse around the Ideal Life. Each traveller's path is a braid woven through gyrations of force and resistance. Optic flow, emulated with the rotating lens, tracing the moving subject, makes this visible.

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James McArdle and Lorena Carrington submitted to the Castlemaine State Festival competitive curated process the exhibition 'Fruiting Bodies'  which was accepted under the Fesitval theme: 'Pressing Matters'.  James McArdle’s practice is to use the qualities of the medium to reflect on itself. Camera vision and human perception are often compared; this is a simplification, but full of potential that might illuminate the nature of vision and attention. Haptic senses are stimulated in the eye by ‘racking’ focus (normally a cinematographic effect); and elsewhere with tilt-shift techniques; while ‘dollying’ the camera by hand around a still point renders the concentric vortex effects. A sense of physical presence and immersion is evoked with the exhibition. Fruiting Bodies’: is an instance of the application of this practice employed to ask the viewer to consider how strange is the phenomenon of the fruiting tree: is it promiscuous to offer your seed openly to the elements, to any who will take it. Is this forbidden? Is it profligate to hide your progeny inside gifts so tempting in their appeal to that most primitive desire, hunger? Is this wholly mere biological expedience evolved to ensure the widest migration of your offspring? Or does it derive from some boundless cosmic generosity? These images invite you to come close to the tree, where within its arms you will find shelter from the sun at its zenith and from the autumnal rains. Fruit is the focus of James’s lens as it circles deep into the embrace of limbs and leaves.