Dissertation submitted in partial compliance with the requirements for the Masters Degree in Technology: Homoeopathy, Technikon Natal, 2001. / The purpose of this double blind placebo controlled study was to evaluate the efficacy of a homoeopathic complex (Avena sativa 03, Ignatia amara 04, Daphne indica 06, Nux vomica 06, Caladium seguinum 060, Nicotinum 060 and Nicotiana tabacum 060) in helping people to stop smoking with reference to the Goldstein typology of cigarette smokers in terms of the number of cigarettes smoked per day / M

The aim of this study was to investigate the current level of awareness and use of the Great American Smokeout (GASO) and the extent to which that may vary by lifetime smoking, socioeconomic status, age and gender. We hypothesized and found that the current levels of awareness and use were significantly less than the most recent reports available (over 13 years ago), and that awareness of the GASO was more likely in lifetime smokers, those with more education, and older age groups, but found no significant effect related to gender. The drop in awareness and use of the GASO was more than half and almost five times, respectively, compared to that of most recent previous reports. These findings highlight a critical need for more attention and resources to reinvigorate the GASO as a useful event for smokers. / Includes bibliography. / Thesis (M.S.)--Florida Atlantic University, 2016. / FAU Electronic Theses and Dissertations Collection

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Some metals and metalloids make significant contributions to the harmful effects of tobacco consumption although understanding the mechanisms involved in toxicity is hampered by the lack of information on their chemical and valence species, both in tobacco and in smoke. This research addresses the speciation of the metals and metalloids most frequently implicated, particularly those elements that exist in nature in multiple valence states, namely arsenic (As) and chromium (Cr), there being considerable differences in toxicity with oxidation state. A strategy was devised to overcome some of the problems that have thwarted earlier attempts at speciation. Firstly tobacco plants were cultivated under controlled conditions in compost burdened with high levels of metals and metalloids resulting in leaf with up to 250 µg g⁻¹ As, although Cr uptake was less successful. Secondly valence speciation even at the exceptionally low concentrations of As and Cr in smoke from unburdened tobacco was achieved with XANES analysis using the exceptionally bright Diamond synchrotron source. This revealed that combustion of tobacco has a marked effect on valence speciation with As(III), the reduced form of As, dominating (and persisting) in condensate of tobacco smoke while ash is dominated by the oxidised form, As(V). Chromium also appears to be present in smoke mainly as reduced Cr(III) species. HPLC-ICPMS analysis of arsenic indicates the dominance of inorganic over organic species (~4:1). Other metals were investigated in less detail. These findings establish that arsenic is present in smoke in its most toxic form and represents a significant risk to health. Conversely smokers appear to be exposed to the less harmful species of chromium. These results support a recent WHO report that includes As but not Cr in a list of four metals and metalloids recommended for regulation in crops and commercial products in the interests of public health.