49 research outputs found
Bodily insights from the crone woman : perceptions of health & beauty
No full textvii, 114 leaves ; 28 cm.Includes abstract and appendices.'Submitted in partial fulfillment of the requirements for the degree of Master of Arts in the Joint Women's Studies Programme at Mount Saint Vincent University, Dalhousie University, Saint Mary's University.'Includes bibliographical references (leaves 108-114).This thesis, entitled Bodily Insights From the Crone Woman: Perceptions of Health & Beauty examines body image as reported by elderly women across their lifespan from a feminist perspective in the year 2001. The author, Clara Maria Spijkerman, traces the life stories of ten older women over the age of sixty who currently live in a mid-sized Canadian city. This paper explores the relationship between old age, beauty and health within contemporary North America in an attempt to discover the role of bodywork in old age. It evaluates the extent to which contemporary North American ideals of beauty and health, as stipulated by the medical community, affect women in old age. In a society that is youth-oriented it might be expected that older women pursue bodywork in an attempt to create an outer body surface that reflects their feelings of inner youth. However, as this study discovered, older women are more likely than their younger counterparts to pursue bodywork strictly for the health-related purpose of maintaining their independence. Health status as defined especially by physical mobility is considered by them to be the central means through which they will maintain active participation in society as opposed to being rendered socially invisible
Mediastinoscopy in paediatric patients
No full textMediastinal pathology presents a diagnostic and therapeutic
dilemma that requires management from a multidisciplinary
team, often consisting of members of various specialties,
including an anaesthetist, surgeon, radiologist, oncologist and
intensivist. Discourse and planning are paramount.http://www.sajaa.co.za/index.php/sajaaam2018Anaesthesiolog
Anaesthesia for thoracoscopy in paediatric patients
No full textModern equipment and surgical techniques have enabled
endoscopic procedures in smaller patients, making thoracoscopy
a possibility for a variety of diagnostic and therapeutic
procedures, even in very young patients.1,2 (Table I)
To understand the perioperative anaesthetic requirements of
paediatric patients for video-assisted thoracoscopic surgery
(VATS), a review of the physiology of one-lung ventilation in the
lateral decubitus position and techniques of lung isolation are
imperative. A review of the general considerations of paediatric
anaesthetic practice fall outside the scope of this review, but
should be kept in mind during VATS procedures in children.http://www.sajaa.co.za/index.php/sajaaam2018Anaesthesiolog
Anaesthetic nurse training in South Africa and the role of the anaesthetist
No full textOne night during a polytrauma theatre case, I asked the anaesthetic nurse to run a blood gas analysis in a nearby intensive care unit. He returned with saline, glucose and insulin, announcing from the door that “we need to crank up the respiratory rate a bit and shift the potassium”. To me, that was the embodiment of the anaesthetic nurse. He referred to “we” because he saw himself as part of the team. In that one moment, he displayed not only his knowledge of physiology and pharmacology but every category of non-technical skill defined in the anaesthetists’ non-technical skills (ANTS) framework – teamwork, situational awareness, task management and decision-making.1 Of course it was not his first day on the job. He drew on years of experience, training and inquisitive self-learning.http://www.sajaa.co.za/index.php/sajaaAnaesthesiolog
Laryngospasm in anaesthesia
No full textLaryngospasm is a common and serious respiratory complication
in anaesthetic practice which can be fatal if not diagnosed
and treated timeously. This review will look at the definition,
epidemiology, mechanism, risk factors, clinical presentation,
differential diagnosis, prevention, treatment and complications
of laryngospasm.http://www.sajaa.co.za/index.php/sajaaam2018Anaesthesiolog
Balancing interests, development of a mediation strategy for the spatial planner and designer operating as a mediator in collaborative interest based urban development processes
No full textThe role of the Spatial Planner and Designer (SPD) is changing due to changes in the communication among stakeholders of urban development. Increasingly the design is used to communicate conflicting interests among stakeholders which means that the traditional role of the SPD as a ranslator of a program of requirements is shifting towards the role of a facilitator of communication. This means that the design is becoming interest based, with a direct participation of stakeholders. In order to achieve a balanced design where no interest has become too dominant the SPD has to evaluate the interests and weigh them. This leads to the SPD becoming a mediator among the stakeholders in the process of urban development. The problem with this development is that the SPD is not trained to operate as a mediator which is why this research focuses on the development of a Mediation Strategy which provides the SPD with a theoretical background as well as a practice based methodology to function as a mediator.Spatial Planning and DesignUrbanismArchitectur
Optimal Feedforward Control for Offshore Wind Turbines During Grid Faults
No full textDue to the increased share of (offshore) wind turbines, more stringent power requirements have been established. Importantly, the low-voltage ride-through requirement states that a wind turbine must remain connected to the electrical grid after a short intermittent grid fault. In the industry and academia many solutions have been proposed, but these are limited by requirements of detailed system knowledge, lack of optimality guarantees, or no testing on high-fidelity models. Therefore, two Iterative Learning Control (ILC) algorithms are presented aimed to solve these issues. The ILC algorithms apply model-free learning based on iterations. Shown is that these ILC algorithms can yield improved performance on a low- and high-fidelity models, with fast convergence of the 2-norm of the output error. The major contributions of this work lie in the application of ILC on grid fault control for wind turbines and in the extension of the norm-optimal ILC to include input constraints using optimisation methods.Mechanical Engineering | Systems and Contro
Determining the effect of sleep deprivation on reaction time and mood in anaesthetists
No full texthttps://drive.google.com/file/d/1o0H_u-FC9P44KSkni10k3DY1OUC-3LNA/view?usp=sharinghttps://drive.google.com/drive/folders/1xeWEZVXiBbelZ7cfeOp5g_kxcTFtqQTl?usp=sharinghttps://drive.google.com/drive/folders/1wD8VU2WAfFe853NhlEgFSqwPM34VnGZ1?usp=sharin
Personalized design process for persuasive technologies
No full textIn this position paper we discuss the application of personalization in persuasive technology design in light of the Personalized Design Process model (PDP-model). The PDP-model defines personalization as aligning a persuasive product to the end-user by stakeholder involvement (i.e. designers, endusers, domain experts and family/relatives) across the Problem Definition-, the Product Design- and/or the Tailoring design phases. It is expected that personalization in a PDP enhances the motivation of end-users to interact longer and more frequently with a product, increasing the likelihood that the product will reach its aimed-for effect. Although personalization in a PDP is a common method in persuasive product design, its added value has not been sufficiently validated by scientific research. We propose several reasons for the frequent use of personalization in a PDP, despite the lack of evidence for its added value. Furthermore, we discuss how personalization could be validated according to the PDP-model.Design Aesthetic
Investigating the material characteristics and fatigue life of 18CrNiMo7-6 carburized steel pinions affected with grinding-induced burns
No full textCarburized steel grades are widely used in applications where high hardness at the surface is required in combination with good core toughness as well as high fatigue resistance. The process of carburizing lower to medium carbon steel can generally provide this combination of properties and has been practised for several decades. Such steel is very essential in vehicle power-trains. The carburized 18CrNiMo7-6 pinions are ground to obtain high dimensional precision after the carburization, quenching and tempering heat-treatment process. During the grinding process, thermal damage is developed due to the high localised heat energy at the contact zone of the grinding wheel and pinion. The developed thermal damage is known as grinding-induced burn. The burns are observed when the temperature reaches above the tempering range (i.e. 210 ̊ C) and the intensity of the grinding-induced burn is in relation to the thermo-mechanical effects of the grinding process. The nital etch process is used to identify the burns using ISO 14104:2017 standard and the process detects using the discolouration developed on the burn site caused by the chemical attack. The information about the intensity of detected burns are not known in the nital etch method. However, the intensity of the grinding-induced burns can be measured using magnetoelastic parameter of Barkhausen Noise (BN) technique which functions in relation to the microstructure and stress state of the material. The present study aims to investigate microstructural features of grinding-induced burns of varying BN intensities, to evaluate the service life testing of the thermally damaged pinions and the effect of varying grinding parameters on the generation of grinding-induced burns. The microstructure characterization is done by optical microscope, Vickers hardness, scanning electron microscope, X-ray diffraction and correlate the obtained results with the BN signals. The increased pinion speed and reduced grinding cycles are observed in the favouring of increasing localized heat input at the contact zone of grinding wheel and pinion causing the BN signals to increase. 3 samples of varying intensities of grinding induced burns are detected using BN and are characterized. The obtained results gave a good correlation with the Barkhausen noise signals. As the heating rate at the grinding contact zone increased above the tempering range, the BN signals also increased due to the enhanced domain wall movement with the softer microstructure which is observed due to the retained austenite decomposition and carbon diffusion from the tempered martensitic phase. The further increase in temperature above the austenitization range led to the re-hardening burn. The freshly formed structure is brittle and hard untempered martensite at the surface surrounded by the softer tempering burn which might be detrimental during the pinion functioning. The axle test results of the tempered burn pinion observed the transformation of retained austenite to martensitic structure during the cyclic loading which eventually enhanced the surface properties by increase in hardness from 621 HV1 to 676 HV1 at 0.1 mm depth and generating -600 ± 6.6 MPa compressive residual stress due to the volume expansion. This transformation resulted in the grinding induced burn pinion to survive the axle test without failure.Materials in Engineering ApplicationsMaterials Science and Engineerin
