Thesis (doctoral)--Universität Bern, 1947. / Includes bibliographical references (p. [2]-[3]).

The overall theme of the portfolio was an investigation into the management of occupational safety and health in the aircraft maintenance facilities. Specifically, the study was the determination of certain safety and health factors that can cause accidents. The focal points were the literature review of status on occupational safety and health adopted in the aircraft maintenance industry, the relationship between certain factors and lost time injury/severity rate and a case study on a Malaysian aircraft maintenance facility. / Thesis (DBA(DoctorateofBusinessAdministration))--University of South Australia, 2007.

Thesis--PlanB (M.S.)--University of Wisconsin--Stout, 1998. / Includes bibliographical references.

Kwan Ming Wah. / Summary in Chinese. / Thesis (M.B.A.)--Chinese University of Hong Kong. / Bibliography: leaves 102-107.

Mercury is a well-known toxic element which can be taken up into the human body in different forms, causing particular harm to the nervous system. Despite this fact, it is still used widely in industrial processes, with chlor-alkali electrolysis one of the most extensive pollution sources of mercury. Though most industries today use mercury-free processes, some chlor-alkali factories still use the mercury process, especially in less developed countries. In addition, small-scale gold mining activity remains the largest global mercury consumer and continues to increase the use of mercury given the upward trend in the price of gold. The aim of this study is to investigate the level of mercury exposure to workers in chlor-alkali factories and a dental hospital in Pakistan. In addition, it is to investigate the level of mercury exposure to miners in small-scale gold mining areas (AGM) in Cambodia, Burkina Faso and Chile. Both investigations were undertaken within the United Nations Environment Programme (management of mercury waste). Within this study, the investigation of mercury exposure to miners was conducted in four small-scale gold mining areas in Sudan. A simple analytical digestion and extraction method for total mercury (T-Hg) analysis in biological and environmental samples with fast sample preparation procedure using CV-AFS and ICP-MS was developed. In addition, for SSIDMS-GC-ICP-MS analysis, the alkaline microwave assisted extract method and acid leaching assisted extract method for Me-Hg analysis in biological samples (hair samples) were developed. These developed analytical methods were used to evaluate the levels of occupational and environmental exposure in the selected areas with Hg hot spots. For Pakistan, to establish chlor-alkali workers' Hg exposure, hair and nail samples of 23 individuals were investigated for total mercury. Within this cohort, 15 individuals had hair total mercury levels above 100 μg g-1, thus exceeding the WHO regarded "safe limit" of 2 μg g-1 in hair Hg by a factor of 50. Several samples showed hair T-Hg levels above 1000 μg g-1, suggesting extreme exposure to Hg. These levels must be regarded as extremely toxic, assuming that these Hg levels in hair correspond to Hg ingestion. In the process of chlor-alkali electrolysis, volatile mercury compounds are formed, including Hg0 and other volatile mercury compounds. These volatile species can adsorb on surfaces, and it is suggested that besides uptake by inhalation, Hg compounds may be adsorbed on keratinous hair and nail material. The investigation of single hairs with synchrotron techniques showed that most of the mercury is found on the outside of the hair, but certain amounts were also metabolised. Adsorption experiments with Hg0 and HgCl2 were conducted to assess the sorption characteristics of these volatile Hg compounds. The results showed that both mercury species' vapour pressures are related to the adsorption of volatile mercury compounds. HgCl2 has a higher vapour pressure and is about two orders of magnitude higher in adsorption than Hg0, suggesting that the chlor- alkali workers have been exposed to HgCl2 in the chlor-alkali plant. Finally, mercury speciation was performed on the ICL chlor-alkali hair samples which showed that almost all mercury was in inorganic form. The source of Me-Hg in the hair seems to be dietary, as no correlation between inorganic and Me-Hg in the hair could be found. The highest value for Me-Hg is around 5.0 μg g-1, which is in the range of concentration found in communities with a high fish diet. Finally, the high mercury result suggests that the mercury (Hg) in the hair samples from workers in the ICL chlor-alkali is from external adsorption rather than from inhalation and was subsequently incorporated into the hair. Nevertheless, in the second chlor-alkali factory in Pakistan (SCL chlor-alkali factory), the average total mercury concentrations in hair and nails are low and almost at control level. However, in this factory, mercury cell technique was phased out a few years ago. This factory now uses membrane cell instead of mercury cell technology. For the dental hospital sector in Pakistan, inorganic mercury concentrations were 6 times higher than Me-Hg concentration in hair samples i.e. Me-Hg and In-Hg in hair accounted for, on average 14.13 % and 85.87 % of T-Hg respectively for these dental workers. However, the high mercury levels in hair could be due to exposure to amalgam. For AGM areas, the T- Hg concentration (μg g-1) in hair samples from AGM miners in Burkina Faso (mean, 3.80 μg g-1) were compared with Cambodian AGM miners and Sudan AGM miners (mean 5.78 and 5.04 μg g-1 respectively). This mean value was significantly lower than that found in the hair of miners in the Cambodia and Sudan AGM areas. This indicates that the AGM miners in these countries are exposed to mercury vapour during the AGM processes. Otherwise, the AGM workers in Cambodia are also exposed to considerable amounts of methylmercury (Me-Hg) through seafood consumption that is a more toxic Hg form. However, the long-term implications for water bodies such as River Nile and Red Sea ecosystems, fish as food and irrigation water use (e.g. for rice paddies) may be disastrous. Therefore, further investigation of Hg analysis in hair and soils should be conducted in these areas to analyse the risk of Hg contamination.

M.Comm. / The process of creating a safe working environment for all has proved to be one of the most complex facets within an organisation. This may be attributed to the fact that there are so many elements involved in ensuring occupational safety. Not only has the individual employee a responsibility towards safety, including his or her attitude and risk-taking behaviour, but also does the organisation contribute towards this hazard-free environment in providing a culture where safety is regarded as a priority or not. Furthermore, the role of internal marketing will have an impact on whether employees will buy into the concept of occupational safety. Internal marketing may be conveyed through management and how they communicate the importance of a safe workplace through elements such as training and motivation. From the above it is clear that both individual and organisational factors play a crucial part in ensuring a hazard-free environment. The challenge is to link these factors together ensuring cooperation from both the employee and employer. If the idea of a safe working environment is not effectively marketed inside the organisation, the factors involved will be negatively influenced, leading to an unsuccessful implementation of safety in the organisation. The purpose of this research study is to determine whether occupational safety can be promoted successfully through internal marketing. Unless there is an understanding of all the concepts related to a safe working environment, the benefits as a result of the implementation of occupational safety will not be fully grasped.

蒋璐. / "2013年9月". / "2013 nian 9 yue". / Thesis (Ph.D.)--Chinese University of Hong Kong, 2013. / Includes bibliographical references (leaves 171-180). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Abstract in Chinese and English. / Jiang Lu.

Thesis (B.Sc)--University of Hong Kong, 2005. / Includes bibliographical references (p. 87-94)

Thesis (M.A.) - Simon Fraser University, 2006. / Theses (School of Criminology) / Simon Fraser University. Also issued in digital format and available on the World Wide Web.

Thesis--PlanB (M.S.)--University of Wisconsin--Stout, 2002. / Includes bibliographical references.