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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 1 to 10 of 366 (0.014 seconds)| 1 |
The use of proton transfer reaction mass spectrometry for analysis of volatile organic compounds in breath and microbial headspaceO'Hara, Margaret Eleanor January 2009 (has links)
The proton transfer reaction mass spectrometer (PTR-MS) was used to analyse volatile organic compounds (VOCs) in human breath and the headspace above microbial cultures. Real-time expirograms of acetone, isoprene and methanol show that end-expired VOC concentration depends on duration of exhalation so a robust method of breath sampling based on cyclic rebreathing was developed. Concentrations of VOCs in arterial (CAB) and venous blood (CVB) and breath (CBr), were measured in 10 healthy volunteers. Mean (range) CBr, CAB and CVB are 1090 (515-2335) ppbv, 26 (10-73) μmol/1 and 18 (9-39) μmol /1 respectively for acetone. For isoprene, the corresponding values are 465 (308-702) ppbv, 6.8 (3.7-11) nmol/1 and 14 (5.5-30) nmol/l. In-vivo blood/breath ratios were calculated and were 580 (280 -1060) for acetone and 0.47 (0.22 - 0.77) for isoprene. The limits of agreement between blood concentrations of acetone and isoprene in blood and breath were determined. A significant inter-individual correlation was found between breath and arterial blood for acetone but not for isoprene. Headspace above three types of nutrient broths inoculated with Staphylococcus aureus was compared with uninoculated broths. VOC emissions from the cultures were measured over 6 hours. The same VOCs were observed for each cultured broth but the time evolution was different
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Studies on the control of energy metabolism in muscleBeis, I. D. January 1973 (has links)
No description available.
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The development and application of fluoroimmunoassays for serum proteinsNargessi, R. D. January 1979 (has links)
No description available.
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Influence of glucose ingestion on physiological and metabolic responses of able-bodied and paraplegic athletes to prolonged upper-body exercise and performanceSpendiff, Owen January 2002 (has links)
No description available.
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The effect of potassium deficiency on the chemical composition and metabolism of cellular tissues in the rat and its interaction with magnesiumSouthon, S. January 1980 (has links)
No description available.
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Calcium binding to connective tissue polysaccharidesSolomon, D. E. January 1980 (has links)
No description available.
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Interactions Between Monoamines and Amino Acids in the Central Nervous SystemTanner, T. January 1976 (has links)
No description available.
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Interactions of Bile Salts with Proteins and PhosphatidylcholinesTaylor, G. W. January 1977 (has links)
No description available.
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Physiological regulation and pathological inhibition of tissue respiration by nitric oxideOrsi, Antonia January 2000 (has links)
No description available.
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Methodology and clinical applications of the assay in serum of 25-hydroxyvitamin DSkinner, R. K. A. M. January 1979 (has links)
No description available.
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