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 600 for “"Lungs"”.
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A Theory for Wheezing in Lungs
A quarter of the world's population experience wheezing. These sounds have been used for diagnosis since the time of the Ebers Papyrus (ca. 1500 BC), but the underlying physical mechanism responsible for the sounds is still poorly understood. The main purpose of this thesis is to change this, …
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Precision Diagnostics of Donor Lungs Ex Vivo
… an advanced technology that reconditions donor lungs prior to transplantation. Lung monitoring during EVLP provides isolated lung data without confounding factors from other physiological systems. Herein, we used machine learning modelling to process EVLP diagnostic data and predict lung …
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Fungoid conditions of the lungs: Part .1
The Primary object of this paper is to record a lung condition occurring amongst the farming community of South Cumberland, the Lake District and Westmorland, which Munro Campbell, Faulds and myself believe to be due to the inhalation of dust born fungi, and accordingly a broncho- mycosis, for …
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Interrogating the lungs through wearable fabric electronics
… many screening techniques performed on the lungs are too expensive, cumbersome, not continuous, and not easily understood without proper medical training. Furthermore, with the pandemic of Covid-19, the demand of screening patients in a non-invasive method has skyrocketed. Stethoscopes …
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A study of lungs in Rana catesbeiana tadpoles
… analyzed separately the air forced through the lungs by the pump and the air surrounding the frog. He was able to show that in R. temporaria the lungs and skin are both important in respiratory exchange but in somewhat different ways. Oxygen enters through the lungs whereas carbon dioxide is …
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Nervous control of the lungs: broncho- and vaso motor responses of guinea-pig lungs, produced by drug injections and nerve stimulations
In isolated pertused lungs of the guinea-pig (1) Acetyl Choline raises the respiratory pressure and diminishes the venous oùtflow; both effects are abolished by Atropine. (2) In general stimulation of the peripheral and of the cervical vago- sympathetic nerves causes a similar rise of …
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Point mutations in normal lungs of smokers and non-smokers
… effect of cigarette smoking in human lungs. However, this hypothesis has not been tested by an assay of nuclear point mutations in lungs of smokers and nonsmokers. Mismatch amplification mutation assay (MAMA), an effective form of allele-specific PCR, was applied for detection of point …
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Aerosol delivery of Rhodoccocus equi IgG to the lungs of ponies
… hyperimmune R. equi plasma and delivered to the lungs of adult ponies would cause a local inflammatory response and if increases in total and R. equi specific IgG occurred post administration. IgG was purified and concentrated from plasma via protein G affinity chromatography. A cross over study …
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Creation and validation of an enhanced in vitro model of the lungs
… the aerosolization of the formulation in the lungs and in which two or more parameters for aerosol characterization can be simultaneously tested. This Master’s thesis describes the development and validation of an improved in vitro model of the diseased lung which can be used for accurate …
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Relative bioavailability of terbutaline to the lungs following inhalation using different methods.
The primary aim was to validate and implement a urinary pharmacokinetic method for terbutaline to determine the relative lung and systemic bioavailability following inhalation and to measure the in-vitro characteristics of the emitted dose by these inhalation methods. Two new robust, accurate and …
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Existence of patchiness in constricted lungs : from experiments to complex system modeling
Understanding asthma pathophysiology can directly help researchers and physicians pinpoint mechanisms that govern airway hyperresponsiveness and effectively treat complex respiratory diseases such as asthma. The advancement in this research field has been prompted by the usage of medical imaging …
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Does maternal nicotine exposure during gestation and lactation change the oxidant-antioxidant status of the lungs of the offsprings and is tomato juice protecting the lungs of the offsprings?
… compromise the gas exchange function of the lungs and renders this vital organ susceptible to gradual damage and different diseases in latter life. Maternal nicotine exposure during gestation and lactation results in gradual destruction of the lung parenchyma, and this leads to the …
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Advanced Deep Learning Approaches for Automated Assessment of Ultrasound Imaging (Lungs and Heart)
… structures in the human body, such as the lungs and heart, due to its non-invasive nature and real-time imaging capabilities. However, the effectiveness of these evaluations is highly dependent on the manual annotation/segmentation of visual patterns. In lung assessments, patterns such as …
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A Patient-Specific Multiscale Model of Mechanical Ventilation of COVID-19-afflicted Lungs
Coronavirus disease-2019 (COVID-19) is a respiratory disease that caused a worldwide pandemic and, in some cases, manifests as an acute respiratory distress syndrome. Severe cases of COVID-19 are often treated with mechanical ventilation, which has a high risk of causing ventilator-induced lung …
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Physics-Based Computational Modeling of Mechanics and Perfusion in COVID-19 Infected Lungs
SARS-CoV-2 is the newest virus to lead to severe respiratory illness and reach global pandemic status in its spread. Histopathological studies as well as global lung dynamics of the disease state of COVID-19 resemble acute respiratory distress syndrome but with some marked differences that have yet …
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Deciphering the mechanism of foxa2 inactivation by respiratory pathogens in chronically diseased lungs
… of microbes to thrive, muco-obstructive lungs are especially vulnerable to infection by microbial pathogens. Pseudomonas aeruginosa is an important bacterial pathogen in chronically diseased airways, especially dominant in CF and advanced stages of COPD. Pyocyanin is a redox-active …
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