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Population density growth : economic effects and mitigation in LDCsMcCarthy, Michael J (Michael John), 1957 January 1985 (has links)
Typescript. / Thesis (Ph.D.)--University of Hawaii at Manoa, 1985. / Bibliography: leaves 169-178. / Photocopy. / Microfilm. / ix, 178 leaves, bound 29 cm
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Effects of compression of some subtropical soils on the soil properties and upon root developmentTrouse, Albert Charles January 1964 (has links)
Photocopy (positive) of typescript. / Thesis (Ph. D.)--University of Hawaii, 1964. / Bibliography: leaves 158-161. / xi, 171 l illus., tables
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Remodelling of high density lipoproteins by plasma factors / by Hui-Qi Liang.Liang, Hui-Qi January 1996 (has links)
Bibliography: leaves 105-151. / xi, 151, [47] leaves, [3] leaves of plates : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / This thesis examines the effect of remodelling HDL on the metabolism of apo A-I. The major focus is on the effects of CETP and LCAT in the regulation of apo A-I concentration in DHL. The effects of incubation of HDL with CETP in the presence of VLDL and/or LDL on apo A-I concentration in HDL are examined. The characterization of the dissociated apo A-I from HDL is presented. The studies demonstrate that the dissociation of apo A-I from HDL mediated by CETP is preventable and reversible in a process dependent on LCAT activity. The mechanism by which HDL apo A-I content is increased is also explored. / Thesis (Ph.D.)--University of Adelaide, Dept. of Medicine, 1997?
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Urban residential density and public transport use: a case study of SydneyHolloway, Darren John, Built Environment, Faculty of Built Environment, UNSW January 2010 (has links)
For at least thirty years urban growth management policies in Australian cities have focused on increasing residential densities as a method of addressing environmental issues. This view has been supported by a number of researchers who hypothesise that to achieve reductions in transport emissions individuals need to be encouraged to use public transport, and the most appropriate method of increasing public transport use occurs predominately from building residential areas at high densities around public transport nodes. This notion is integral to recent urban growth management policies in Sydney, which have sought to increase residential densities under the rubric of urban consolidation. There are a number of researchers who have promoted the benefit of increasing urban densities as a way of increasing public transport use. In Australia, the most cited research in this area is that of Newman and Kenworthy. Nonetheless, there are a number of commentators who have criticised the emphasis of density in increasing public transport use. These commentators assert that factors other than density, particularly socio-economic factors, are more important in influencing public transport use. Nevertheless, a major gap within this concept is that the research is conducted at the macro-level with minimal analysis at the meso or micro level. This thesis attempts to fill a gap in our knowledge by assessing the relationship between urban density and public transport use, particularly trains, at the macro, meso and micro level. The analyses used data across the Sydney metropolitan area and by geographical location to assess the implications of the density-public transport debate, and its articulation in urban consolidation policies. Such an analysis also has implications for other Australian cities who have promoted urban consolidation. The study concludes that residential density is not as important as socio-economic factors in influencing one form of public transport use, namely trains. Variables such as car ownership, country of origin, housing tenure, and the type and location of employment are more important in influencing train use than density. The study concludes that at the macro level the notion of increasing densities increases public transport use is plausible, yet at the micro level the relationship between high density housing and public transport use (in this case train use) is more complex. This suggests that the promotion of urban consolidation policies as a means to increase public transport use needs to be re-assessed. Importantly, there is still much research to be conducted to fully comprehend the relationships between housing and transport in order to better inform urban growth management policies in cities, including Sydney.
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Remodelling of high density lipoproteins by plasma factors / by Hui-Qi Liang.Liang, Hui-Qi January 1996 (has links)
Bibliography: leaves 105-151. / xi, 151, [47] leaves, [3] leaves of plates : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / This thesis examines the effect of remodelling HDL on the metabolism of apo A-I. The major focus is on the effects of CETP and LCAT in the regulation of apo A-I concentration in DHL. The effects of incubation of HDL with CETP in the presence of VLDL and/or LDL on apo A-I concentration in HDL are examined. The characterization of the dissociated apo A-I from HDL is presented. The studies demonstrate that the dissociation of apo A-I from HDL mediated by CETP is preventable and reversible in a process dependent on LCAT activity. The mechanism by which HDL apo A-I content is increased is also explored. / Thesis (Ph.D.)--University of Adelaide, Dept. of Medicine, 1997?
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Urban residential density and public transport use: a case study of SydneyHolloway, Darren John, Built Environment, Faculty of Built Environment, UNSW January 2010 (has links)
For at least thirty years urban growth management policies in Australian cities have focused on increasing residential densities as a method of addressing environmental issues. This view has been supported by a number of researchers who hypothesise that to achieve reductions in transport emissions individuals need to be encouraged to use public transport, and the most appropriate method of increasing public transport use occurs predominately from building residential areas at high densities around public transport nodes. This notion is integral to recent urban growth management policies in Sydney, which have sought to increase residential densities under the rubric of urban consolidation. There are a number of researchers who have promoted the benefit of increasing urban densities as a way of increasing public transport use. In Australia, the most cited research in this area is that of Newman and Kenworthy. Nonetheless, there are a number of commentators who have criticised the emphasis of density in increasing public transport use. These commentators assert that factors other than density, particularly socio-economic factors, are more important in influencing public transport use. Nevertheless, a major gap within this concept is that the research is conducted at the macro-level with minimal analysis at the meso or micro level. This thesis attempts to fill a gap in our knowledge by assessing the relationship between urban density and public transport use, particularly trains, at the macro, meso and micro level. The analyses used data across the Sydney metropolitan area and by geographical location to assess the implications of the density-public transport debate, and its articulation in urban consolidation policies. Such an analysis also has implications for other Australian cities who have promoted urban consolidation. The study concludes that residential density is not as important as socio-economic factors in influencing one form of public transport use, namely trains. Variables such as car ownership, country of origin, housing tenure, and the type and location of employment are more important in influencing train use than density. The study concludes that at the macro level the notion of increasing densities increases public transport use is plausible, yet at the micro level the relationship between high density housing and public transport use (in this case train use) is more complex. This suggests that the promotion of urban consolidation policies as a means to increase public transport use needs to be re-assessed. Importantly, there is still much research to be conducted to fully comprehend the relationships between housing and transport in order to better inform urban growth management policies in cities, including Sydney.
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Geophysical and hydrogeological assessment of the interaction of saline and fresh groundwater near a tidal creekDasey, Gregory R, Civil & Environmental Engineering, Faculty of Engineering, UNSW January 2010 (has links)
Through the application of downhole logging techniques an innovative assessment of density dependent groundwater flow has been undertaken that highlights the limitations of water level measurements for assessing groundwater flow in coastal environments. The method utilises an EM39 bulk conductivity log to calculate fluid conductivity/fluid density that was then used to convert measured point water head to freshwater head/environmental head to improve the understanding of groundwater flow at the creek. This method of assessing density dependent flow is unique and has not previously been demonstrated. The converted water levels showed that interpretation of groundwater flow is critically dependent on a detailed knowledge of both head and density. An assessment of the potential error in the conversion process indicated that, for the low gradients at the study site, misinterpretation of flow could occur due to errors inherent in the process. As a result, it is recommended that pressure transducers and loggers be used to monitor pressure in variable density systems so that Darcy???s equation can be used directly to calculate groundwater flow and direction. The thesis also presents the results of high-resolution geophysical mapping of the distribution of saline groundwater beneath a tidal creek. The mapping was used to develop a detailed conceptual model of the salinity distribution at a tidal creek that included: the presence of saline intrusion beneath the creek; saline groundwater overlying fresh groundwater due to surface flooding in extreme tide events; concentrated discharge of groundwater (comprised of brackish water due to mixing in the aquifer) at the creek banks; and, significant changes in the distribution of saline groundwater according to rainfall events and only minor changes over a tidal cycle. The conceptual model, geophysical site assessment, water level analysis and numerical modelling represents a multi-disciplinary approach to the assessment of the interaction of saline and fresh groundwater that has not previously been undertaken. Significant anisotropy was inferred from geophysical observations that indicated vertical flow in the borehole annulus. This observation is particularly significant and implies that even relatively short (1.0 to 2.0 m) screened wells may not yield accurate fluid conductivity and head values in variable density systems.
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Digging the dirt on density: a study of medium density housing in Christchurch's Living Three zoneLilley, Susan Jane January 2006 (has links)
Since the 1987 Brundtland Report, the development of urban areas has been considered a key determinant in achieving 'sustainability'. Greater residential density is increasingly advocated for and applied through policy statements around the world as a way of achieving this goal. Various tiers of New Zealand government are following international policy trends, developing programmes, protocols and strategies that promote sustainability and 'good' urban design practices through intensification, or concentration, within urban areas. Research shows that a policy framework of urban concentration, through greater residential density, is only successful where consumers and providers of housing support its practical application. Confrontation between policy and the market, and the acceptability of greater levels of residential density to residents, can jeopardise a policy's success. This research uses a mix of survey and interview techniques to determine the acceptability of "medium density" developments to residents, and to understand the practises and motivations of housing developers in Christchurch's "Living 3" zone. This zone is predominantly sited between the central business district and low-density suburban areas, making it ideally located to facilitate policies of intensification. The principle purpose of the zone is the development of medium-density residential accommodation, however greater residential density is relatively new to Christchurch where the potential for expansion is seemingly unbounded. The intention of this research is to assist the planning, production and performance of future developments. In conclusion, this thesis makes recommendations to improve the form and design of medium density residential developments in Christchurch's inner Living Three zone in terms of the market's producers and consumers.
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Dietary energy density and the performance characteristics of growing pigsHenman, David James January 2004 (has links)
Optimal nutritional management of growing pigs is constrained by lack of quantitative information on the response of animals between 30 and 110 kg live weight to dietary energy content. Under 'ideal' conditions modern genotypes appear to adjust feed intake to maintain a constant DE intake over a much wider range of dietary energy concentrations than previously thought (Mullan et al, 1998). However, under commercial pen conditions, voluntary feed intake is lower, pigs respond in terms of both growth rate and feed conversion to dietary DE density considerably above the levels currently thought to maximise biological and economic responses. The present study was designed to provide information on the response of growing pigs to dietary energy content under ideal and commercial housing conditions for two growth periods 30-60kg liveweight and 60-100kg liveweight. The results of the pigs kept under individual (ideal) housed conditions were consistent with the literature in that they adjusted their voluntary feed intake with digestible energy density to maintain a constant energy intake. The results of the pigs kept in groups (commercial) housing conditions tended to increase their daily energy intake as the energy density of the feed increased. This increase in energy intake improved the growth rate of the pigs and increased the fat deposition of those pigs. Economic analysis of the experiments involving pigs in groups indicates that formulating diets to a least cost per megajoule of digestible energy is not the most profitable point to set the digestible energy density. Modelling programs need to be used to determine where the least cost per unit of growth of the pig occurs. This is the most economical digestible energy density to formulate too. This will have major impact on the cost of production of piggery operations as the cost of energy is the single most important parameter in the cost of producing a pig.
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Electronic defects in amorphous silicon dioxide /Gabriel, Margaret A. January 2007 (has links)
Thesis (Ph. D.)--University of Washington, 2007. / Vita. Includes bibliographical references (p. 98-106).
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