Thesis (M.S.)--Virginia Polytechnic Institute, 1962. / Vita. Abstract. Includes bibliographical references (leaves 44-46). Also available via the Internet.

A dissertation submitted to the Faculty of Medicine University of the Witwatersrand, Johannesburg for the degree of Doctor of Philosophy in Medicine Johannesburg, 1988 / The purpose of this thesis was to investigate the value in clinical situations of the well known in vitro anti-adrenergic effects of magnesium. Research interest in magnesium has been growing rapidly over the last twenty years. However, most of this interest has focused on the clinical consequences of magnesium deficiency states and little attention has been given to magnesium as a therapeutic agent. Despite the wide use of infusions of magnesium sulphate in obstetric practice, there is a dearth of knowledge regarding the actions of magnesium on a cardiovascular system. In laboratory studies, magnesium was shown to inhibit the release of catecholamines from adrenergic nerve terminals, an action which might have great clinical implications. / IT2018

Thesis (M.S.)--University of Missouri-Columbia, 2007. / The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on October 29, 2007) Vita. Includes bibliographical references.

Thesis (Ph. D.)--University of Washington, 2007. / Vita. Includes bibliographical references (p. 118-138).

Thesis--Catholic University of America. / Biography. Includes bibliographical references.

京都大学 / 0048 / 新制・課程博士 / 博士(医学) / 甲第21998号 / 医博第4512号 / 新制||医||1038(附属図書館) / 京都大学大学院医学研究科医学専攻 / (主査)教授 柳田 素子, 教授 松田 文彦, 教授 木村 剛 / 学位規則第4条第1項該当 / Doctor of Medical Science / Kyoto University / DFAM

A study was made cf the cost per pound of magnesium sulfate monohydrate produced by a "Krystal" crystallizer at recirculation rates from 20 to 40 gallons per minute and operating temperatures from 150 to 180 °F. From these tests, the optimum operating conditions within the range of these variables were derived. The problem was studied by operating the equipment at all sixteen combinations of these variables in unit steps of ten. The crystallizer was operated at each set of conditions, the product collected, and the cost per pound determined. The operating conditions were found to affect power and steam costs greatly, varying from 1.689 mills/lb at 50 gallons per minute and 170 °F to 0.737 mills/lb at 20 gallons per minute and 180 °F, representing a decrease. cf 0.952 mills per pound upon correct choice of operating temperature and recirculation rate. / Master of Science

Aneurysmal subarachnoid haemorrhage (SAH) accounts for only 3-5% of all strokes but has the highest morbidity and mortality rates among all types of stroke. Experimental studies have confirmed that magnesium inhibits excitatory amino acid (EAA) release, blocks N-methyl-D-aspartate (NMDA) receptors and prevents calcium from entering cells. These changes may minimise neuronal injury during episodes of cerebral vasospasm. / Based on the aforementioned biological evidence, a pilot study of magnesium sulphate (MgSO4) infusion for aneurysmal SAH was conducted. This pilot study indicated that MgSO4 infusion for aneurysmal SAH is safe and has the potential to improve clinical outcomes. The pilot study results are supported by the findings of other research groups. / In summary, our results do not support a clinical benefit of intravenous magnesium sulphate infusion in patients with acute aneurysmal SAN. / Studies were carried out to investigate the distribution of magnesium in the cerebrospinal fluid (CSF) and the brain after intravenous magnesium sulphate infusion. We found that magnesium sulphate infusion resulted in an 11% to 21% increase in CSF magnesium, which was sustained for at least nine days. We further investigated intracellular free magnesium using 31 P-MRS, in aneurysmal SAH patients receiving and not receiving intravenous magnesium sulphate infusion. Intravenous magnesium sulphate infusion was found to produce a significant increase (15.6%) in the level of intracellular free magnesium during the first week, which covered the time frame required for neuroprotection, to improve outcomes in patients with aneurysmal SAH. / Three hundred and twenty-seven patients with aneurysmal SAH were recruited and randomly assigned to receive magnesium sulphate infusion or a saline placebo for 10 to 14 days. In the primary outcome analysis, the proportions of patients with a favourable outcome at six months (Extended Glasgow Outcome Scale [GOSE] score of 5-8) were similar, 64% in the MgSO4 group and 63% in the saline group (OR 1.0, 0.7-1.6). In the secondary outcome analyses, there were also no significant differences between the two groups. Analysis of the plasma magnesium concentration levels did not suggest that higher levels of plasma magnesium concentration result in better clinical outcomes. / Wong Kwok Chu. / Source: Dissertation Abstracts International, Volume: 73-02, Section: B, page: . / Thesis (Ph.D.)--Chinese University of Hong Kong, 2010. / Includes bibliographical references (leaves 132-152). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Electronic reproduction. [Ann Arbor, MI] : ProQuest Information and Learning, [201-] System requirements: Adobe Acrobat Reader. Available via World Wide Web.

Coarse aggregate is often one of the largest volume occupying components in a portland cement concrete system. With increases in transportation costs and depletion of many of the aggregate sources currently in use the need to reevaluate the performance of aggregates in concrete has arisen. Current aggregate testing requirements for many organizations have not been updated in decades, even with the advancements in aggregate testing equipment that are currently available. This research project investigates current used and potential test methods for evaluating coarse aggregate for use in portland cement concrete. Testing focused on determining the most appropriate aggregate property to evaluate and then determining the correlation to mechanical concrete properties. Relationships between potential aggregate tests and currently used aggregate tests were evaluated to determine if compatible relationships between methods were evident. For this purpose concrete mixtures were made at a fixed aggregate volume to establish if a link was evident between aggregate test properties and concrete. To establish a link between laboratory and real world performance field sites with known distress were visited to better establish limits for aggregate testing requirements. Results obtained provided the basis for recommendations for testing requirements and limits to be used for aggregates in portland cement concrete. / text

Thesis (Ph. D.)--Auburn University. / Abstract. Vita. Includes bibliographical references.