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Introduction: Dexterity impairments are common and disabling. Measuring the extent of these impairments is important for care and service provision. Despite this, dexterity is poorly operationalized in the management of persons with hand and wrist conditions (HWC). Thesis purpose: To understand: 1) how dexterity is defined in the management of persons with HWC and 2) how therapists working with persons with HWC perceive/understand the concept and measurement of dexterity and use of performance-based outcome measures of dexterity (PBOMD). Methods: In study one, Interpretive Description was used to understand the perceptions and measurement practices of occupational therapists working with persons with HWC in Singapore. Study two involved a content analysis of the literature outlining the constructs measured by PBOMD that were validated for use in persons with HWC. Results: Both studies highlighted the lack of conceptual clarity around ‘dexterity’ that is reflected in therapists’ and tool developers’ discourse. Many of the therapists we interviewed, perceive PBOMD to lack clinical value. Studies from this thesis suggest that identified PBOMD do not adequately cover dexterity. Conclusion: Findings highlight the challenges surrounding the construct of dexterity and provide clinical practice recommendations. / Thesis / Master of Science Rehabilitation Science (MSc) / Dexterity is the ability to do tasks, successfully, quickly and accurately. Loss of dexterity is common and affects our ability to do our tasks of daily life and work. Unfortunately, there is a lack of agreement on the best way to measure dexterity. Our study aims to explore what dexterity means to health professionals. We focused on occupational therapists seeing persons with hand and arm injuries. In the first study, we interviewed therapists to understand how they measured dexterity. In the second study, we searched for dexterity tests used with persons with hand injuries. Then, we compared the tests we found to dexterity theories. We found that dexterity is measured in different ways. Therapists faced many barriers to using dexterity tests. Current dexterity tests are an incomplete reflection of a person’s dexterity. The information gained from these studies could be used to inform future research on the measurement of dexterity.

International Telemetering Conference Proceedings / October 30-November 02, 1989 / Town & Country Hotel & Convention Center, San Diego, California / The first Indian Remote Sensing Satellite was launched on 17th March 1988 from a Soviet Cosmodrome into a 904 Km Polar Sunsynchronous orbit. The data transmission from the satellite is at 5.2 Mega Bits/sec in S-Band and 10.4 Mega Bits/sec in X-Band. The payload data is formatted into custom made 8328 words format. A programmable unique versatile frame sync and Decommutation unit has been developed to test the data from the data handling system during its various phases of development. The system works upto 50 Mega Bits/sec and can handle frame sync code length upto 128 bits and a frame length of 2 Exp 20 bits. Provision has been made for programming the allowable bit errors as well as bit slippages, using a front panel setting. This paper describes the design and implementation of such a high bit rate frame synchroniser developed specially for IRS Spacecraft application. It will also highlight the performance of the system.

Background: Strength and power are important factors in many sports, and rotational power of the trunk and upper body are important components of golf performance. Trunk and pelvis cooperated in the rotation movement and strength in the muscles surrounding these segments is contributing to a successful and powerful rotation. Side-to-side asymmetry is often discussed in the field of injury prevention and it is suggested that bilateral imbalances affects the performance. Hand strength is a measure of diverse use when testing physical requirements in athletes. It has previously been concluded that hands strength correlates strongly with strength in both lower and upper extremity in youths, but the correlation among adults and athletes are unknown. In golf, hand strength has been stated to be one of the most important components for golf performance and it strongly correlates with golf specific variables such as ball speed and drivers distance. The relationship between hand strength and rotational power is unknown. Aim: The aim was to study rotational peak power and hand strength in young golf players to compare side-to-side differences and the relationship between rotational peak power and hand strength. Methods: Twenty-seven subjects, 22 men and 5 women, with a golf handicap of ≤5 participated in the study. The two tests performed was a hand strength test using a T.K.K handheld dynamometer and a rotational peak power test in Quantum. The tests were performed at the same session, first hand strength and then rotational peak power. In order to test the rotational peak power a 1RM test was performed. In order to study the relationship between hand strength and rotational power a Spearman´s range of correlation (rs) was used. A Wilcoxon signed-ranked test was used to study the side-to-side differences between dominant and non-dominant hand strength and rotational power. Results: No statistical significant differences were found between dominant and non-dominant hand strength (p = 0.28) or between dominant and non-dominant rotational power (p = 0.97). A strong correlation between dominant hand strength and dominant rotational power was found (rs = 0.636) and a moderate correlation between non-dominant hand strength and non-dominant rotational power (rs = 0.589). Conclusion: There are no side-to-side differences in hand strength or rotational power in young healthy golf players. Dominant hand strength correlates strongly with dominant rotational power.

To make sense of our unpredictable world, humans use sensory information streaming through billions of peripheral neurons. Uncertainty and ambiguity plague each sensory stream, yet remarkably our perception of the world is seamless, robust and often optimal in the sense of minimising perceptual variability. Moreover, humans have a remarkable capacity for dexterous manipulation. Initiation of precise motor actions under uncertainty requires awareness of not only the statistics of our environment but also the reliability of our sensory and motor apparatus. What happens when our sensory and motor systems are disrupted? Upper-limb amputees tted with a state-of-the-art prostheses must learn to both control and make sense of their robotic replacement limb. Tactile feedback is not a standard feature of these open-loop limbs, fundamentally limiting the degree of rehabilitation. This thesis introduces a modular closed-loop upper-limb prosthesis, a modified Touch Bionics ilimb hand with a custom-built linear vibrotactile feedback array. To understand the utility of the feedback system in the presence of multisensory and sensorimotor influences, three fundamental open questions were addressed: (i) What are the mechanisms by which subjects compute sensory uncertainty? (ii) Do subjects integrate an artificial modality with visual feedback as a function of sensory uncertainty? (iii) What are the influences of open-loop and closed-loop uncertainty on prosthesis control? To optimally handle uncertainty in the environment people must acquire estimates of the mean and uncertainty of sensory cues over time. A novel visual tracking experiment was developed in order to explore the processes by which people acquire these statistical estimators. Subjects were required to simultaneously report their evolving estimate of the mean and uncertainty of visual stimuli over time. This revealed that subjects could accumulate noisy evidence over the course of a trial to form an optimal continuous estimate of the mean, hindered only by natural kinematic constraints. Although subjects had explicit access to a measure of their continuous objective uncertainty, acquired from sensory information available within a trial, this was limited by a conservative margin for error. In the Bayesian framework, sensory evidence (from multiple sensory cues) and prior beliefs (knowledge of the statistics of sensory cues) are combined to form a posterior estimate of the state of the world. Multiple studies have revealed that humans behave as optimal Bayesian observers when making binary decisions in forced-choice tasks. In this thesis these results were extended to a continuous spatial localisation task. Subjects could rapidly accumulate evidence presented via vibrotactile feedback (an artificial modality ), and integrate it with visual feedback. The weight attributed to each sensory modality was chosen so as to minimise the overall objective uncertainty. Since subjects were able to combine multiple sources of sensory information with respect to their sensory uncertainties, it was hypothesised that vibrotactile feedback would benefit prosthesis wearers in the presence of either sensory or motor uncertainty. The closed-loop prosthesis served as a novel manipulandum to examine the role of feed-forward and feed-back mechanisms for prosthesis control, known to be required for successful object manipulation in healthy humans. Subjects formed economical grasps in idealised (noise-free) conditions and this was maintained even when visual, tactile and both sources of feedback were removed. However, when uncertainty was introduced into the hand controller, performance degraded significantly in the absence of visual or tactile feedback. These results reveal the complementary nature of feed-forward and feed-back processes in simulated prosthesis wearers, and highlight the importance of tactile feedback for control of a prosthesis.

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Genom det här projektet har jag som intention att kunna utveckla Myrornas befintliga koncept Guldkorn för att skapa en ny kategori för deras avdelning för kläder, Guldkorn-Naturmaterial. Denna rapport kommer att visa ett förslag på en utveckling av ett koncept i samarbete med Organisationen Myrorna med fokus på naturmaterialens egenskaper. / My intention to this project is to develop Myrornas existing Guldkorn concept. Aiming to create a new concept under the name of Guldkorn -Naturmaterial fpr their clothing department. This report will show the proposal for the development of my concept focusing on the characteristics of natural materials.

The work of this MA thesis develops a new approach to hand weaving in which the design process is led by the technique of resistant dyeing. The process is inspired by the visual properties of traditional ikats. It follows the technical ikat procedure of primary resistant dyeing and subsequently weaving. Whithin the research a new way of weaving is explored in which the dyed thread dictates the weaving process and therefore influences the weaving motif. In addition different design variables such as material, binding pattern and finishing are used to push forward the developed concept. The aim of this work is to explore new aesthetic expressions between regular and irregular motifs through the application of design thinking. The result presents an innovative approach in the ikat technique in order to create random distributed patterns and how they can be already influenced in the stage of yarn preparation.

Participants executed right-handed reach-to-grasp movements toward horizontally translating targets. Visual feedback of the target when reaching, as well as the presence of additional cues placed close (Experiment 1) or far (Experiment 2) above and below the target’s path was manipulated. Additional cue presence appeared to impair participants’ ability to extrapolate the disappeared target’s motion, and caused grasps for occluded targets to be less accurate. Final gaze and grasp positions were more accurate when reaching for leftward moving targets, suggesting individuals use different grasp strategies when reaching for targets travelling away from the reaching hand. Comparison of average fixations at reach onset and at the time of the grasp suggested that participants accurately extrapolated the occluded target’s motion prior to reach onset, but not after, resulting in inaccurate grasps. New information is provided about the eye-hand strategies used when reaching for moving targets in unpredictable visual conditions. / October 2016

A hand-off represents the transfer of patient information and care responsibility between a sending and receiving provider. Hand-offs occur in single locations such as inpatient wards and across care settings like from primary care offices to emergency departments. This care transition quality improvement (QI) project was created to improve patient hand-off communication from a primary care office to a hospital based emergency department within the greater Phoenix, AZ metropolitan area. No uniform hand-off process existed before the QI project. The purpose of the QI project was to demonstrate process necessary to achieve desired outcomes, in this case, a superior patient hand-off. The QI project goal was to develop a standardized hand-off protocol and tool. The aim of this QI project was to replace existing hand-off methods with a formalized new hand-off process and tool used during care transition from a primary care office to an emergency department. QI project methods followed two (2) plan-do-study-act (PDSA) cycles involving QI team meetings and end-user feedback that iteratively led to the adoption of a standardized hand-off process and tool. PDSA cycle one identified the best handoff tool. PDSA cycle two established an efficient process for conducting hand-offs. The new hand-off tool consistently demonstrated superior information transfer. Program participant satisfaction increased and was reflected by positive feedback as most nurses and doctors embraced the new process.