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 48 for “"Non-invasive methods"”.
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Non-invasive methods for in situ assessing and monitoring of the vulnerability of rock art monuments
… to their environment. The increasing emphasis on non-destructive testing and demand for thorough characterisation of cultural heritage material in situ requires the development of advanced diagnostic methods, providing the motivation for this work on the application of optical coherence …
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NON-INVASIVE METHODS TO PREDICT AND MONITORING METABOLIC DYSFUNCTION ASSOCIATED STEATOTIC LIVER DISEASE BY USING ULTRASOUND IMAGING
… method such as liver biopsy is expensive, highly invasive and characterized by sampling errors. These issues highlight the need for non-invasive alternatives. Several medical imaging techniques are widely used in this setting. Accordingly, techniques such as ultrasound (US), magnetic resonance …
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Evaluation of anthropogenic disturbance on African clawless otter (Aonyx capensis) physiological stress, behaviour, and population density using non-invasive methods
… from a transformed area and natural areas using non-invasive techniques. An enzyme-immunoassay for measuring faecal glucocorticoid metabolite (fGCM) concentrations as a measure of stress in ACOs was established by comparing fGCM concentrations from a captive otter before and after a stress event …
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The Development and Evaluation of Non-invasive Methods to Characterise the Disease States of Patients Utilising Selective Discrimination, Gas Chromatography-Mass Spectrometry and Chemometrics
… the profiles of VOCs are being utilised as non-invasive diagnostic methods. The aim of the thesis was to develop and evaluate the performance of analytical methods to characterise the disease states of patients utilising selective discrimination, gas chromatography-mass spectrometry (GC-MS) …
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Development and Validation of Non-Invasive Methods for the Identification of Patient-Specific Hyperelastic and Anisotropic Material Properties of Abdominal Aortic Aneurysms In Vivo
… This work focuses on developing and validating non invasive, in vivo applicable methods to characterize the elastic properties of different AAA tissue regions. Additionally, it pursues material behavior identification using a hyperelastic and anisotropic material model. The goal is to provide …
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EXPERIMENTAL CHARACTERIZATION OF CRYSTALLIZATION FOULING IN LIQUID-TO-AIR MEMBRANE ENERGY EXCHANGERS
… are to (i) develop and calibrate indirect and non-invasive methods to detect the onset of crystallization fouling in a LAMEE, (ii) identify operating conditions that result in crystallization fouling in LAMEEs, and (iii) identify the evolution of crystallization fouling in membranes. The …
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Endomyocardial biopsy diagnosis of acute cardiac allograft rejection
… are fourfold: (i) to review the range of non-invasive methods that may be used to diagnose acute cardiac allograft rejection; (ii) to review the use of the bioptome in sampling the donor heart endomyocardium; (iii) to review the light microscopic and histological grading of acute cardiac …
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NON-INVASIVE MONITORING OF INTRACRANIAL PRESSURE USING TRANSCRANIAL DOPPLER ULTRASONOGRAPHY
… parameter is not always considered due to its invasive assessment. In this scenario, a non-invasive estimation of ICP (nICP) may be essential, and indeed it has become a Holy Grail in Clinical Neurosciences: extensively searched, albeit never found. This thesis is devoted to the assessment, …
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Experimental characterization of the dynamic response of a mock-up CANDU fuel bundle
… fuel bundle. The experiments are performed using non-invasive methods of vibration measurement by means of high-speed cameras and laser displacement sensors. The contact dynamics between the fuel bundle and the pressure tube are replicated using a high precision custom-made setup. Also, the …
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Vascular and Neuro-Inflammatory Modulation Following Resistance Training in Young African American and White Men
… in young African American and white men. Several non-invasive methods were used to assess macrovascular structure, macrovascular/microvascular function, limb blood blow, central and peripheral blood pressure, and cardiac autonomic modulation. Multiple methodologies were employed in order to …
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Abdominal vacuum lift as an aid to diagnosing abdominal adhesions
… to be very promising in diagnosing adhesions non invasively. Yet there are still weaknesses in the predictive power of these procedures. For such procedures to be successfully implemented into clinical medicine and offer non invasive methods to diagnosing adhesions, they must first be able to …
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Quantification of Salicylic Acid in Artificial Saliva using Raman Spectroscopy
… saliva, addressing the critical need for non-invasive methods to measure medication adherence. Given the recent guidelines advocating for higher aspirin doses for pregnant women at risk for Pre-Eclampsia (PE), a condition that can lead to severe complications for both mother and child, the …
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Nondestructive evaluation of wooden logs using ground penetrating radar
Presently there are no suitable non-invasive methods for precisely detecting the subsurface defects in logs in real time. Internal defects such as knots, decays, and embedded metals are of greatest concern for lumber production. While defects such as knots and decays (rots) are of major concern …
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Physiological High-Frequency Oscillations in Scalp EEGs Change During Brain Maturation
… HFO detection from scalp EEGs. The use of non-invasive methods opens the door to larger-scale studies and broader applications beyond epilepsy.
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Prediction of Compensated Liver Cirrhosis by Ultrasonography and Routine Blood Tests in Patients with Chronic Viral Hepatitis
… hepatitis. Because the liver biopsy is an invasive method, non-invasive methods have been used to diagnose compensated liver cirrhosis in patients with chronic hepatitis. The current study was designed to evaluate ultrasonography and routine blood tests for diagnosing compensated liver …
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Post-exercise oxygen consumption and heart rate recovery as possible measures of the homeostatic stress of an exercise bout Theresa Naomi Carol Mann.
Several methods have been used to quantify the internal training load of a bout of exercise. However, arecent novel approach to quantify the internal training load has been to investigate the dynamic returntowards resting homeostasis at the cessation of exercise. Objective and non-invasive methods …
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Simulation methods and tissue property models for non-invasive transcranial focused ultrasound surgery
… structures of the brain. The current spectrum of non-invasive methods for treating such tumors includes radiotherapy, which requires exposure to ionizing radiation, and chemotherapy, which is systemically toxic. However, these tumors may also potentially be attacked by focusing highly intense …
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The use of heart rate variability measurements as a non-invasive method of assessing affective state in horses
… are. Many physiological measures involve invasive procedures that contribute to the stress load of the individual and non-invasive methods often only determine the presence or absence of ‘stress’ or are dogged by interpretive problems.
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Non-invasive monitoring for population assessments of a critically endangered Neotropical primate
… the difficulties of applying traditional survey methods. Therefore, in this thesis, I assessed and provided population and genetic data of a muriqui population based in a previously unstudied site using remote sensing and molecular methods. I evaluated the use of canopy camera traps as an …
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Thermographic Assessment of the Forearm During Data Entry Tasks: A Reliability Study
… ability to work, and their quality of life. Non-invasive methods for assessing the physiological responses to workload may provide information on physiological markers leading to increased risk of WMSDs. The following study aimed to evaluate the feasibility of using thermography to quantify …
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