Description:
An analysis of occuptational accidents (n=587) was completed for the years 1989/90/91 for a major Australian water authority for injuries of five or more days lost time.
Description:
Masters of Applied Science, Occupational Health and Safety
Description:
An analysis of occuptational accidents (n=587) was completed for the years 1989/90/91 for a major Australian water authority for injuries of five or more days lost time.
Description:
Masters of Applied Science, Occupational Health and Safety
Description:
This paper investigates the utilisation of lifting devices by hospital staff, in relation-ship to the handling of patients and the reasons for this. A survey was conducted at Flinders Medical Centre, Adelaide during June and July 1989 using a questionnaire which returned 54% (n=110) completed returns. The results showed a lack of available lifting devices; 16.4% (n=18) of health care respondents had no lifting devices available in their work area while 14.5% (n=16) of respondents had only one lifting device. Where lifting devices were available, 63.6% (n=70) of respondents used the lifting devices less than three times in the week prior to the survey. 24.6% (n=27) of respondent health care workers were of the opinion that lifting devices were not very appropriate for patient handling tasks and 12.7% (n=14) of respondents found the devices difficult to use. 22.7% (n=25) of respondents indicated insufficient room for the use of the devices. 19.1% (n=21) of respondents consider the floor plan layout in which they to be utilised obstructive. 24.5% (n=27) were of respondents found that the lifting devices were not very mobile. 24.6% (n=27) of respondents considered that the setting-up time of the lifting devices took too long and 18.2% (n=20) were of the opinion that the devices were located too far away from the workplace for quick and convenient access. Strong emphasis in the literature review is placed on Common and Statute Law of the employer's "Duty of Care" to the health care workers. The main recommendation is that users need to have input into the design of the equipment. Also, user require initial training and require on-going refresher training in the use of lifting devices for patients. Supervision of users of lifitng devices is essential.
Description:
This paper investigates the utilisation of lifting devices by hospital staff, in relation-ship to the handling of patients and the reasons for this. A survey was conducted at Flinders Medical Centre, Adelaide during June and July 1989 using a questionnaire which returned 54% (n=110) completed returns. The results showed a lack of available lifting devices; 16.4% (n=18) of health care respondents had no lifting devices available in their work area while 14.5% (n=16) of respondents had only one lifting device. Where lifting devices were available, 63.6% (n=70) of respondents used the lifting devices less than three times in the week prior to the survey. 24.6% (n=27) of respondent health care workers were of the opinion that lifting devices were not very appropriate for patient handling tasks and 12.7% (n=14) of respondents found the devices difficult to use. 22.7% (n=25) of respondents indicated insufficient room for the use of the devices. 19.1% (n=21) of respondents consider the floor plan layout in which they to be utilised obstructive. 24.5% (n=27) were of respondents found that the lifting devices were not very mobile. 24.6% (n=27) of respondents considered that the setting-up time of the lifting devices took too long and 18.2% (n=20) were of the opinion that the devices were located too far away from the workplace for quick and convenient access. Strong emphasis in the literature review is placed on Common and Statute Law of the employer's "Duty of Care" to the health care workers. The main recommendation is that users need to have input into the design of the equipment. Also, user require initial training and require on-going refresher training in the use of lifting devices for patients. Supervision of users of lifitng devices is essential.
Description:
"This paper explored the occupational health effects of pesticide use and found evidence that workers are at risk of both acute and chronic adverse health effects, the extent of which largely depends on work practices employed. The label is the focus of the communication system used to inform workers about the hazards and safe handling procedures."
Description:
"In this work, a quantitative risk assessment procedure for laboratory fume cupboards has been developed using estimates of frequency (probabilty x exposure) and severity."
Description:
Masters Degree in Applied Science, Occupational Health and Safety
Description:
"In this work, a quantitative risk assessment procedure for laboratory fume cupboards has been developed using estimates of frequency (probabilty x exposure) and severity."
Description:
Masters Degree in Applied Science, Occupational Health and Safety
Description:
Much has been written about seated working posture - particularly in the late 19th and early 20th centuries, and the furniture associated with achieving what is commonly referred to as the "German Square" postural geometry (after Mandal, 1974). The physical sciences aspects of chair, desk and associated furniture ancillary to the task required of the seated worker, have been described in the scientific literature and the standards and guideline publications of the authorities of many countries of the western world. The most important contribution of multi-adjustable furniture to the reduction of postural discomfort and musculo-skeletal complaints is recognised. As a result a variety of standards and guidelines concerning some of these aspects exists in countries such as the United Kingdom, Canada, United States of America, Germany, Australia and the Scandinavian countries. The International Organisation for Standardisation published document TC136/SC7 in 1978, consolidating such existing standards. Less emphasis has been placed on the interface of the information exchange and the comfort, performance and preferences of the seated worker; ie., the practically, the comfort and the intrinsic safety of the working posture prescribed by the model established by the many standards. Existing specifications and guidelines differ in their orientation towards operator performance and comfort of the operator, in as much as some purport to be "furniture standards", for example C.E.N, Comite European de Normalisation, Paris, 1980, while others purport to be "postural standards", for example, International Organisation for Standardisation document TC 136/SC7 (1978). The standards are uniform in matters of upright trunk and 90° upper and lower limb geometry, but are divided in the lineal dimensions applied to eye height above the floor, shoulder acromion to home row of keys (or pen-grip position of the dominant hand and fingers), and eye distance to copy.
Description:
Much has been written about seated working posture - particularly in the late 19th and early 20th centuries, and the furniture associated with achieving what is commonly referred to as the "German Square" postural geometry (after Mandal, 1974). The physical sciences aspects of chair, desk and associated furniture ancillary to the task required of the seated worker, have been described in the scientific literature and the standards and guideline publications of the authorities of many countries of the western world. The most important contribution of multi-adjustable furniture to the reduction of postural discomfort and musculo-skeletal complaints is recognised. As a result a variety of standards and guidelines concerning some of these aspects exists in countries such as the United Kingdom, Canada, United States of America, Germany, Australia and the Scandinavian countries. The International Organisation for Standardisation published document TC136/SC7 in 1978, consolidating such existing standards. Less emphasis has been placed on the interface of the information exchange and the comfort, performance and preferences of the seated worker; ie., the practically, the comfort and the intrinsic safety of the working posture prescribed by the model established by the many standards. Existing specifications and guidelines differ in their orientation towards operator performance and comfort of the operator, in as much as some purport to be "furniture standards", for example C.E.N, Comite European de Normalisation, Paris, 1980, while others purport to be "postural standards", for example, International Organisation for Standardisation document TC 136/SC7 (1978). The standards are uniform in matters of upright trunk and 90° upper and lower limb geometry, but are divided in the lineal dimensions applied to eye height above the floor, shoulder acromion to home row of keys (or pen-grip position of the dominant hand and fingers), and eye distance to copy.
Description:
"This study uses two examples of occupational health and safety problems encountered in nine major hospitals to illustrate that hospitals fail to identify, evaluate and share information adequately. The two safety examples used are 1. Needle-stick incidents 2. The potential for injuries associated with floor cleaning methods."
Description:
Masters Degree in Applied Science, Occupational Health and Safety
Description:
The sublimation enthalpy of beryllium (II), aluminium (III), chromium (III), iron (III), cobalt (III), nickel (II), copper (II), oxovanadium (IV) and zirconium (IV) 2,4 -pentanedionate complexes has been determined by vacuum Differential Scanning Calorimetry (DSC), subsequent to benzoic acid being proposed as calibrant for this technique. In conjunction with existing thermochemical data for these complexes, metal-ligand homolytic bond dissociation energies are calculated and are rationalized in terms of the ionic size of the coordinated meta and the crystal field stabilization energies for the complex. Old and new methods for the determination of sublimation enthalpy are reviewed and the present data collectively reveal the versatility and precision of DSC fort the direct determination of sublimation enthalpies of metal complexes. The new sublimation enthalpy data presented for metal 2-4- pentanedionate complexes effectively ends the controversy associated with the previously reported corresponding data/
Description:
The sublimation enthalpy of beryllium (II), aluminium (III), chromium (III), iron (III), cobalt (III), nickel (II), copper (II), oxovanadium (IV) and zirconium (IV) 2,4 -pentanedionate complexes has been determined by vacuum Differential Scanning Calorimetry (DSC), subsequent to benzoic acid being proposed as calibrant for this technique. In conjunction with existing thermochemical data for these complexes, metal-ligand homolytic bond dissociation energies are calculated and are rationalized in terms of the ionic size of the coordinated meta and the crystal field stabilization energies for the complex. Old and new methods for the determination of sublimation enthalpy are reviewed and the present data collectively reveal the versatility and precision of DSC fort the direct determination of sublimation enthalpies of metal complexes. The new sublimation enthalpy data presented for metal 2-4- pentanedionate complexes effectively ends the controversy associated with the previously reported corresponding data/
Description:
Oxidation-reduction reactions between carbohydrates, lignin and quinone additives in Pinus radiata soda pulping liquors have been investigated. A reduction peak at -0.72 V (Vs SCE) was observed using differential pulse polarography when Pinus radiata wood is heated in alkaline solution in the presence of oxygen, and has been shown to result from the oxidation of lignin structures. The results of this study indicate that the electroactive species present in Pinus radiata soda pulping liquors is an oxidation product, resulting from the formation of phenoxy radicals and /or quinone methides. Although reduction potentials for anthraquinone, carbohydrates and the electroactive lignin structure fit the general redox mechanism propsed for accelerated delignification, the species observed by polarography in this study has been shown not to be involved in the main pulping reactions due to its low concentration.
Description:
Oxidation-reduction reactions between carbohydrates, lignin and quinone additives in Pinus radiata soda pulping liquors have been investigated. A reduction peak at -0.72 V (Vs SCE) was observed using differential pulse polarography when Pinus radiata wood is heated in alkaline solution in the presence of oxygen, and has been shown to result from the oxidation of lignin structures. The results of this study indicate that the electroactive species present in Pinus radiata soda pulping liquors is an oxidation product, resulting from the formation of phenoxy radicals and /or quinone methides. Although reduction potentials for anthraquinone, carbohydrates and the electroactive lignin structure fit the general redox mechanism propsed for accelerated delignification, the species observed by polarography in this study has been shown not to be involved in the main pulping reactions due to its low concentration.
Description:
Most of Australia's zinc production is by the electrolytic zinc process, in which zinc is electrowon from an acid sulphate solution. The process is known to be exceptionally sensitive to the presence of trace impurities. At the Electrolytic Zinc plant (Risdon, Tasmania), isobenzofuranone (pthalide) has been detected in the electrowinning circuit, and found in higher concentrations during efficiency slumps. It was found that di-2-ethylhexyphthalate, (present in the liners and plastics used in the electrowinning circuit), is reduced to isobenzofuranone under the electrolysis conditions employed. In addition, an investigation involved a constant current electrolysis of a synthetic zinc electrolyte, as identified an additional pathway for the productionof isobenzofuranone. 2-Naphthol, added to the electrolysis circuit for current efficiency purposes, is also a major precursor of isobenzofuranone. 2-Napthol and possibly 1-nitroso-2-napthol can be oxidized to pthalic acid, either at a lead anode or via anode oxidation productions, and the phthalic acid produced can be reduced to isobenzofuranone at a zinc cathode. In addition, it was found that isobenzofurane is further reduced at the potential of zinc deposition to ultimately yield 2-methylbenzaldehyde. This compound, which has also been detected in Risdon plant electrolytes, is also toxic in the zince electrowinning circuit. The compound 2-methylabenzyl alcohol has also been detected via GLC examination of Risdon plant liquors. However, this compound was not detected in the present investigation, and thus no explanation can be offered for its presence in plant electrolytes. The toxicity of zinc electrolyte impurities on current efficiency was determined by a cyclic voltammetric technique. The results of this investigation indicate that the presence of isobenzofuranone and 2-methylbenzaldehyde can significantly lower current effciency, and the compounds phthalic acid and 2-methylbenzyl alcohol also lower efficiency.
Description:
Most of Australia's zinc production is by the electrolytic zinc process, in which zinc is electrowon from an acid sulphate solution. The process is known to be exceptionally sensitive to the presence of trace impurities. At the Electrolytic Zinc plant (Risdon, Tasmania), isobenzofuranone (pthalide) has been detected in the electrowinning circuit, and found in higher concentrations during efficiency slumps. It was found that di-2-ethylhexyphthalate, (present in the liners and plastics used in the electrowinning circuit), is reduced to isobenzofuranone under the electrolysis conditions employed. In addition, an investigation involved a constant current electrolysis of a synthetic zinc electrolyte, as identified an additional pathway for the productionof isobenzofuranone. 2-Naphthol, added to the electrolysis circuit for current efficiency purposes, is also a major precursor of isobenzofuranone. 2-Napthol and possibly 1-nitroso-2-napthol can be oxidized to pthalic acid, either at a lead anode or via anode oxidation productions, and the phthalic acid produced can be reduced to isobenzofuranone at a zinc cathode. In addition, it was found that isobenzofurane is further reduced at the potential of zinc deposition to ultimately yield 2-methylbenzaldehyde. This compound, which has also been detected in Risdon plant electrolytes, is also toxic in the zince electrowinning circuit. The compound 2-methylabenzyl alcohol has also been detected via GLC examination of Risdon plant liquors. However, this compound was not detected in the present investigation, and thus no explanation can be offered for its presence in plant electrolytes. The toxicity of zinc electrolyte impurities on current efficiency was determined by a cyclic voltammetric technique. The results of this investigation indicate that the presence of isobenzofuranone and 2-methylbenzaldehyde can significantly lower current effciency, and the compounds phthalic acid and 2-methylbenzyl alcohol also lower efficiency.
Description:
This project studies the heavy metal cation adsorption of crosslinked casein, to assess its viability as an alternative means of removing heavy metal ions from the wastewater produced by mining and manufacturing processes.
Description:
"The purpose of this investigation was to determine the comparative effects of training by jogging, circuit weight training, swimming and calisthenic/endurance games on middle-aged men."
Description:
"The purpose of this investigation was to determine the comparative effects of training by jogging, circuit weight training, swimming and calisthenic/endurance games on middle-aged men."
Description:
Potassium alkyl xanthates are commonly used as collectors in the flotation of sulphide minerals. Much research has been directed to the formulation of mechanisms responsible for the hydrophobicity of the sulphide minerals in xanthate flotation. Alkyl dixanthogen plays an important role in this mixed-potential mechanism, and is regarded as the species which imparts hydrophobicity to the mineral surface. Winter has recently suggested that sulphur xanthates, which are chemically very similar to alkyl dixanthogen, may play a significant role in the processes rendering the sulphide minerals hydrophobic during froth flotation. The aim of this investigation was to develop techniques for the separation and identification of sulphur xanthates at very low levels of conecentration. Techniques employed were Molecular Emission Cavity Analysis Spectroscopy and High Performance Liquid Chromatography. It was possible to extract the sulpur xanthates from simulated flotation liquors, separate the individual species, and determine them to a level of 0.05 ppm in the liquor. Aklyl sulphur dixanthates were found to disproportionate in methanol solution.
Description:
Potassium alkyl xanthates are commonly used as collectors in the flotation of sulphide minerals. Much research has been directed to the formulation of mechanisms responsible for the hydrophobicity of the sulphide minerals in xanthate flotation. Alkyl dixanthogen plays an important role in this mixed-potential mechanism, and is regarded as the species which imparts hydrophobicity to the mineral surface. Winter has recently suggested that sulphur xanthates, which are chemically very similar to alkyl dixanthogen, may play a significant role in the processes rendering the sulphide minerals hydrophobic during froth flotation. The aim of this investigation was to develop techniques for the separation and identification of sulphur xanthates at very low levels of conecentration. Techniques employed were Molecular Emission Cavity Analysis Spectroscopy and High Performance Liquid Chromatography. It was possible to extract the sulpur xanthates from simulated flotation liquors, separate the individual species, and determine them to a level of 0.05 ppm in the liquor. Aklyl sulphur dixanthates were found to disproportionate in methanol solution.
Description:
This report details the use of the MECA spectrophotometer to establish levels of sulphur, phosphorus and heavy metal contamination in Lake Burrumbeet
Traces of the female self : exploring the documentation of women’s art through traces, impressions, residues and self-portraiture via contemporary art practice
Description:
Women have always been present as artists, but not necessarily included within the canon of Western art history. Studying the canon is an accepted way of understanding the context of what has gone before, and in turn positioning ourselves within contemporary art practices and theories. However there is a disconnect when most of the individuals within the canon are nothing like us. Self-portraiture can be an embodied methodology, a starting point for an investigation that goes beyond oneself. Addressing the personal through my art practice also addresses a wider community of female artists. Through a studio-based investigation I have asked: What can visual art’s inherent capacity for generating and capturing traces, residues and impressions express in a material and conceptual way to explore self-identity and contribute to the current discourse about women artists’ history? How can these themes be visually expressed in new ways through contemporary selfportraiture, addressing absence and perspective in the documentation of women’s art? I explore these questions through experimental methods of making self-portraits. This research project considers the personal, examining representation of the self as an ontological enquiry into the roles of making and being. As a practice-led study, I pursue this line of enquiry as a means for exploring current structures of power, through a new body of work aimed at further informing Australian women’s art practice and its history.
Description:
Women have always been present as artists, but not necessarily included within the canon of Western art history. Studying the canon is an accepted way of understanding the context of what has gone before, and in turn positioning ourselves within contemporary art practices and theories. However there is a disconnect when most of the individuals within the canon are nothing like us. Self-portraiture can be an embodied methodology, a starting point for an investigation that goes beyond oneself. Addressing the personal through my art practice also addresses a wider community of female artists. Through a studio-based investigation I have asked: What can visual art’s inherent capacity for generating and capturing traces, residues and impressions express in a material and conceptual way to explore self-identity and contribute to the current discourse about women artists’ history? How can these themes be visually expressed in new ways through contemporary selfportraiture, addressing absence and perspective in the documentation of women’s art? I explore these questions through experimental methods of making self-portraits. This research project considers the personal, examining representation of the self as an ontological enquiry into the roles of making and being. As a practice-led study, I pursue this line of enquiry as a means for exploring current structures of power, through a new body of work aimed at further informing Australian women’s art practice and its history.