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 373 for “"Oxygenation"”.
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Multispectral Imaging of Skin Oxygenation
… clinical status. Measurement of skin tissue oxygenation has been in many clinical applications such as cosmetic product development, chronic wound care and plastic surgery tissue recovery monitoring. For decades, researchers have been investigating optical spectroscopy and imaging techniques …
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Magnetic Resonance Imaging of Cerebral Venous Oxygenation
Cerebral venous oxygenation (Yᵥ) is an important biomarker for brain diseases. My dissertation consisted of two studies. The first study aims to investigate the regional Yᵥ in hypertension. Hypertension is known to cause cerebral hypoperfusion and cortical atrophy but its impact on Yᵥ is not yet …
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Congenital Diaphragmatic Hernia and Extracorporeal Membrane Oxygenation
Contains fulltext : mmubn000001_253710626.pdf (Publisher’s version ) (Open Access)
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Alpha-Oxygenation by Acylation-Rearrangement of Nitrones
… affords a new method for the (alpha)-oxygenation of aldehydes and cyclic ketones via (alpha)-acyloxy imines. The reaction apparently proceeds by initial acylation of the nitrone oxygen, proton removal, and {3,3}-sigmatropic rearrangement of the resulting N-vinyl-O-acylhydroxylamine. …
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Predicting Oxygen Transfer in Hypolimnetic Oxygenation Devices
… is applied to the three most common hypolimnetic oxygenation systems: the Speece Cone, the bubble-plume diffuser, and the full-lift hypolimnetic oxygenation systems. The latter being presented by Vickie Burris in her thesis, <i>Hypolimnetic Aerators: Predicting Oxygen Transfer and Water Flow …
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Accurate noninvasive monitoring of fetal tissue oxygenation level
Fetal blood oxygenation level serves as a critical indicator of fetal health throughout pregnancy and labor. However, existing clinical devices predominantly employ invasive techniques, posing risks to both the fetus and the mother. To address this concern, we present a noninvasive method for …
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Hypolimnetic Oxygenation: Coupling Bubble-Plume and Reservoir Models
When properly designed, hypolimnetic aeration and oxygenation systems can replenish dissolved oxygen in water bodies while preserving stratification. A comprehensive literature review of design methods for the three primary devices was completed. Using fundamental principles, a discrete-bubble …
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Spatiotemporal Dynamics of Tissue Oxygenation in Awake, Behaving Mice
… directly decouples neural activity-evoked oxygenation changes in the brain. These findings have important implications for interpreting data acquired by clinical neuroimaging modalities like functional magnetic resonance imaging. Understanding the relationship between neuronal activity and …
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Noninvasive optoacoustic monitoring of blood oxygenation in large blood vessels
Continuous monitoring of cerebral blood oxygenation is critically important for successful treatment of patients with severe traumatic brain injury and patients undergoing cardiac surgery. At present, the techniques for monitoring blood oxygenation are invasive. We propose the noninvasive …
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Developing iodine proxies for oceanic oxygenation conditions during greenhouse episodes
… ecosystems in complex ways, and declining ocean oxygenation is a growing concern. Forecasting the geographical and bathymetric extent, rate, and intensity of future deoxygenation and its ecological effects, however, remains highly challenging because of the complex feedbacks in the …
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Development of a microfluidic device for blood oxygenation by photocatalysis
… lungs. A novel microfluidic device for the oxygenation of whole blood has been developed. The device couples a semiconductor, titanium dioxide (TiO₂), thin film that generates oxygen through photocatalysis with a microfluidic network that facilitates diffusion of the dissolved oxygen to red …
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Promoting oxygenation of vacuum packaged fresh pork using soybean leghemoglobin
Fresh pork loins were cut for three replications and randomly assigned to one of seven treatments: 1) polyvinylchloride (PVC) packaged, 2) vacuum packaged (Vac-pack), 3) 0.2 mL of Tris-Buffer, 4) 0.2 mL of high leghemoglobin high pH (HLbHpH), 5) 0.2 mL of high leghemoglobin low pH (HLbLpH), 6) 0.2 …
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AI-based analysis of cerebral oxygenation in preterm and term infants
… injuries resulting from inadequate cerebral oxygenation, posing significant risks to their long-term neurodevelopment. Near-infrared spectroscopy (NIRS) is a non-invasive technology capable of monitoring regional cerebral oxygen saturation (rcSO2) and detecting cerebral desaturation events in …
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Association between venoarterial extracorporeal membrane oxygenation start time and patient outcomes
Introduction: Extracorporeal membrane oxygenation (ECMO) is a complex tool used in times of cardio and pulmonary failures. It began as a tool used in neonates and gradually evolved to adult use in 2003 and increased in popularity during the time of the H1N1 influenza. As this procedure is risky, it …
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Novel metal- and main group-catalyzed methods for modulating molecular oxygenation
Synthetic methodologies frequently rely on oxygen functionality as a synthetic handle to enable structural modification of organic molecules; therefore, methods that enable new ways to modulate oxygen content in molecular structure facilitate structural diversification. This thesis details the …
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Assessing Pre-Frontal Cortex Oxygenation After Sport Concussion With Near Infrared Spectroscopy
… (NIRS) was used to assess pre-frontal cortex oxygenation, by measuring relative changes in oxy- (HbO2 ) and deoxy-hemoglobin (HHb), and the associated standard deviations. Resting hemoglobin, and hemoglobin changes in response to increases in CO2 (induced by 20s breath-holds), were measured in …
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Cerebral Hemodynamics and Its Oxygenation: Study of Their Baseline and Spontaneous Oscillation
Near infrared spectroscopy (NIBS) has been used for determination of tissue optical properties. This technique has been especially useful for in vivo monitoring of hemodynamics and oxygen saturation in tissue. For this work, I have developed a large-ranged multidistance probe for NIBS, which allows …
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