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 11 of 11 for “"facemask"”.
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Assessment of and improvements to a stereophotogrammetric patient positioning system for proton therapy
… thesis describes the construction and use of the facemask at the National Accelerator Centre (NAC) as used to both immobilise and position patients for precision proton radiotherapy. The precision achieved using the stereophotogrammetric (SPG) positioning system is measured, and the shortcomings …
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Politics and pandemics: an investigation of the potential covariates in the relationship between conservative political ideology and reduced facemask wearing
<p>Facemasks have been empirically shown as one of the most effective non-pharmaceutical interventions in preventing the spread of COVID-19. However, research shows that individuals identifying as politically conservative are less likely to comply with mask mandates and engage in less mask wearing. …
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Evaluation of clinical methods of pulmonary gas exchange assessment in the standing horse
… was measured by an infrared capnograph through a facemask. Alveolar O, tension, alveolar dead space fraction (V<sub>DB</sub>/V<sub>T</sub>), and physiologic shunt fraction (Q<sub>S</sub>/Q<sub>T</sub>) were calculated using standard formulas. Horses with both mild and severe signs of lower …
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Predicting and preventing traumatic brain injury: A novel computational approach
… by interior foams close to impact locations. Facemask also affected brain strain response as it changed both the rigidity and inertia of the helmet.
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The Effect of Wearing Mouthguards on VO2, Ventilation, and Perceived Exertion at Two Different Exercise Intensities
… exercise tests while wearing one of two facemasks (nasal or non-nasal breathing) and one of three mouthguard conditions (no mouthguard, boil and bite, custom-fit). Steady-state VO2, rate of perceived exertion (RPE), and other ventilatory values were measured at 60% and 80% of VO2max …
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Time and Concentration Relationships of Gentamicin in Serum and Bronchial Lavage Fluid of Horses Administered Gentamicin Intravenously and by Aerosol
… gentamicin was performed using a close fitting facemask and an ultrasonic nebulizer. Intravenous gentamicin was administered via a jugular venous catheter. Samples of pulmonary epithelial lining fluid were collected by bronchial lavage performed at 0.5, 4, 8 and 24 hours after gentamicin …
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Early determinants of lung function in African infants
… made with the infant breathing via a facemask during natural sleep, included tidal breathing, exhaled nitric oxide, sulphur hexafluoride multiple breath washout and the forced oscillation technique. Information on antenatal exposures was collected using questionnaires and urine …
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Masks and tubes used to support the neonatal airway – how to improve their fit, seal and correct placement
… breathing. Positive pressure delivered through a facemask remains the almost universal initial approach. This is then generally followed by endotracheal intubation if the infant is not responding or if prolonged support is needed. Despite many years of research into mask ventilation, it is still …
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Facemasks in the protection of hospitals healthcare workers (HCW) in resource poor settings
… and a dearth of evidence around the efficacy of facemasks and respirators. Most studies have been observational and there is a lack of trial data around use and re-use of facemasks in the healthcare setting. Due to the lack of high quality studies, I hypothesised that there would be huge …
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Insights into the Mechanisms of Metal Oxide and Cationic Antimicrobials
… the development and study of antimicrobial facemasks that kill 99.9% of pathogenic bacteria responsible for hospital acquired infections, Staphylococcus aureus, Pseudomonas aeruginosa, and Streptococcus pneumoniae within 30 minutes. These facemasks were made by adhering cuprous oxide (Cu2O) …