Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 30 for “"Hyperbaric"”.
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The hyperbaric incident monitoring study (HIMS) : an international study of incidents occuring in hyperbaric medicine units
Analyses incidents which occured in hyperbaric medicine units, or as a consequence of hyperbaric oxygen exposure, with the aim of developing recommendations for safety improvement in hyperbaric medical practice. A review of the hyperbaric literature showed that ear barotrauma is the most frequently …
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Fine Coal Dewatering Using Hyperbaric Centrifugation
… a new ultrafine dewatering process called hyperbaric filter centrifugation (HFC) has been developed. This novel method combines centrifugation and pressure filtration within a single process to substantially reduce moistures over what can be achieved using conventional dewatering systems. …
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Studies on acute hyperbaric pulmonary oxygen toxicity
Abstract available: p.17-18
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Observational study of children with autism who have participated in hyperbaric oxgen therapy
… increase, so does the need for research.</p> <p>Hyperbaric oxygen therapy is one alternative treatment parents are seeking for their child with autism. When one looks at the science behind hyperbaric oxygen therapy and the physical condition of a child with autism the rationale behind the …
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New mathematical models of inert gas transport through biological tissue in hyperbaric environments
The thesis is concerned with a fundamental mathematical analysis of inert gas transport through biological tissue at a raised ambient partial pressure. Three basic time-scales of transport in tissue are defined and their relationship examined and compared with existing models, which e.re shown to …
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Design and Testing of a Hyperbaric Horizontal Belt Filter for Fine Coal Dewatering
… than current technology. To meet this goal, a hyperbaric horizontal belt filter was designed and constructed over the course of 18 months. Once built, the filter was then thoroughly tested to determine operational capabilities. The test data showed that the lowest moisture content that could be …
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Longevity, Oxygen Toxicity and Radiation-Enhanced Resistance to Oxygen in Tribolium Confusum (Mortality, Hyperbaric, Radiation Factors, Induced Repair)
Sublethal doses of ionizing radiation increase longevity in a variety of insects, suggesting that irradiation may retard the age-dependent decline of physiological functions. There have been no systematic investigations of the response of irradiated populations to stress, however.
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The evidence basis of diving and hyperbaric medicine - a synthesis of the high level clinical evidence with meta-analysis
Introduction: Hyperbaric oxygen therapy (HBOT) is the administration of 100% oxygen at pressures greater than 1 atmosphere. One recurrent criticism that has been made of this field is that treatment is based on little or no good clinical evidence. Aims: The primary objective of this thesis is to …
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The effects of preconditioning coronary artery disease patients with hyperbaric oxygen prior to coronary artery bypass graft surgery & cardiopulmonary bypass
… to myocardial dysfunction. In clinical studies, hyperbaric oxygen (HBO2) treatment following an acute myocardial infarction (AMI), has been shown to limit myocardial injury and improve myocardial function. The primary efficacy objective of this study was to determine if systemically …
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Pre-treatment of patients undergoing cardiopulmonary bypass with hyperbaric oxygen : a prospective randomised double-blind evaluation of inflammatory response and neurocognitive outcome
… human and animal studies have shown that hyperbaric oxygen can reduce some of the mediators of inflammation. Evidence from animal experiments also suggest that pretreatment with hyperbaric oxygen can induce cerebral and spinal ischaemic tolerance. Using the prospective randomised …
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An investigation into the molecular mechanisms of hyperbaric oxygen using a human dermal microvascular endothelial cell line and a porcine retinal explant model.
… (DR) and impaired wound healing in diabetes. Hyperbaric oxygen therapy (HBOT) is the administration of hyperbaric oxygen (HBO) which involves breathing ≥ 95% oxygen at elevated pressures. It is used for the treatment of recalcitrant ulcers in diabetes. However, the exact molecular mechanism is …
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Using Optimal Control Theory to Optimize the Use of Oxygen Therapy in Chronic Wound Healing
… chronic wounds with bacterial infections using hyperbaric and topical oxygen therapies.</p> <p>We used a mathematical model describing the interaction between bacteria, neutrophils and oxygen. Optimal control theory was then employed to study oxygen treatment strategies with the mathematical …
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Spinal anaesthesia for brachytherapy for carcinoma of the cervix a comparison of two dose regimes of hypebaric bupivacaine
… was to help establish the best dose regimen of hyperbaric bupivacaine, when combined with intrathecal fentanyl, for spinal anaesthesia for brachytherapy for carcinoma of the cervix. This procedure is performed as a day case at Groote Schuur Hospital.
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The provision of health care in remote hostile environments.
… care and particular attention is paid to the hyperbaric environment and to environmental heat and cold. The basic medical problems in remote health care are evaluated in three related studies. The first examines 2,162 personnel who required medical evacuations from the offshore structures of …
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Análise estrutural de painéis curvados reforçados sob carregamento de pressão externa uniforme
… tensile testings, imperfection measurement and hyperbaric tests. The accuracy of the numerical model is verified in light of experimental results. The results from linear and elastoplastic numerical simulations are presented in the parametric analysis and in the case study. The parametric …
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Dynamic contrast-Enhanced MRI of Pancreatic Islet Transplants
… as well as evaluating the effectiveness of a hyperbaric oxygen-based engraftment-enhancing therapy. The results are an important step in advancing islet transplantation as a potential cure for type 1 diabetes.
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The Effects of Altered Partial Pressures of Gas on Cognitive and Neural Function
… levels, whether through Hypoxia, Hyperoxia, or Hyperbaric Oxygen Therapy (HBOT), <br/>shape cognition and brain activity remain incomplete. This thesis adopts a novel, multi-modal <br/>framework that integrates normobaric gas manipulations, cognitive testing, Transcranial <br/>Magnetic …
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Processing and deformation studies in high temperature ceramics
… composites. These fibers are derived using a hyperbaric pressure-laser chemical vapor deposition (HP-LCVD) method in which a laser is used to deposit a fiber directly from the vapor phase. Then, the topic of HP-LCVD will be explored further by a study in the phase and microstructure stability …
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The hearing abilities and middle ear functioning of the recreational scuba diver
… It is believed that repeated exposure to the hyperbaric environment may have a long term effect on the auditory system. The research literature has given a lot of attention to acute injury but is very limited relating to the long term implications of scuba diving. Previous research studies did …
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