R H Dunstan
Affiliation: University of Newcastle
- Small changes in environmental parameters lead to alterations in antibiotic resistance, cell morphology and membrane fatty acid composition in Staphylococcus lugdunensisMarcus J Crompton
Metabolic Research Group, School of Environmental and Life Sciences, The University of Newcastle, Callaghan, Australia
PLoS ONE 9:e92296. 2014..lugdunensis responded to slight changes in environmental conditions by altering plasma membrane fatty acid composition, growth rates and morphology to achieve optimal adaptations for survival in changing environments. ..
- Effect of low temperature on growth and ultra-structure of Staphylococcus sppLaura A Onyango
Environmental and Pathogenic Microbiology Laboratory, School of Environmental and Life Sciences, University of Newcastle, Newcastle, New South Wales, Australia
PLoS ONE 7:e29031. 2012....
- Development of a complex amino acid supplement, Fatigue Revivaâ„¢, for oral ingestion: initial evaluations of product concept and impact on symptoms of sub-health in a group of malesR Hugh Dunstan
School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW 2308, Australia
Nutr J 12:115. 2013..Complex formulations of amino acids present significant challenges due to solubility and taste constraints. This initial study sets out to provide an initial appraisal of product palatability and to gather pilot evidence for efficacy...
- Filterability of staphylococcal species through membrane filters following application of stressorsLaura A Onyango
Environmental and Pathogenic Microbiology Laboratory, Faculty of Science and Information Technology, School of Environmental and Life Sciences, Department of Biology, University Drive, Callaghan, 2308, NSW, Australia
BMC Res Notes 3:152. 2010..In this investigation, we tested the filterability of staphylococcal cultures that were exposed to several environmental stress conditions by passing them through 0.22 and 0.45 mum sterile filters, which are industry standards...
- Elemental composition at different points of the rainwater harvesting systemA C Morrow
School of Environmental and Life Sciences, The University of Newcastle, University Drive, Callaghan, NSW 2300, Australia
Sci Total Environ 408:4542-8. 2010..Atmospheric deposition was not a major contributor to the rainwater contaminant load at the sites tested. Piping materials, however, were shown to contribute significantly to the total elemental load at some locations...
- Surface wetlands for the treatment of pathogens in stormwater: three case studies at Lake Macquarie, NSW, AustraliaH Mendez
School of Environmental and Life Sciences, The University of Newcastle, Callaghan NSW, 2308, Australia
Water Sci Technol 60:1257-63. 2009..Comparison of devices suggested that hydraulic residence times and other design parameters strongly influenced the capacity of each device to reduce FC counts during different weather conditions...
- Effects of 4-nonylphenol and 17alpha-ethynylestradiol exposure in the Sydney rock oyster, Saccostrea glomerata: Vitellogenin induction and gonadal developmentM N Andrew
School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW 2308, Australia
Aquat Toxicol 88:39-47. 2008..Male individuals in 1microg/L and 100microg/L 4-nonylphenol exposures and 5ng/L 17alpha-ethynylestradiol were at earlier stages of spermatogenic development than corresponding controls...
- Identifying the major influences on the microbial composition of roof harvested rainwater and the implications for water qualityC A Evans
School of Environmental and Life Sciences, University of Newcastle, University Drive, Callaghan NSW
Water Sci Technol 55:245-53. 2007..In all cases, evidence of faecal contamination was found to be negligible. The implications of these findings to the issues of tank water quality, health risk analysis and monitoring protocols have been discussed...
- Wind, rain and bacteria: The effect of weather on the microbial composition of roof-harvested rainwaterC A Evans
Department of Biological Sciences, University of Newcastle, University Drive, Callaghan NSW 2308, Australia
Water Res 40:37-44. 2006..The implications of these findings to the issues of tank water quality and health risk analysis, appropriate usage and system design are discussed...
- Erythrocyte antioxidant systems protect cultured endothelial cells against oxidant damageR S Richards
Department of Biological Sciences, University of Newcastle, NSW, Australia
Biochem Mol Biol Int 46:857-65. 1998..This protection depends upon intact erythrocyte antioxidant systems. These data support the hypothesis that erythrocytes can provide antioxidant protection to other tissues in vivo...
- Simultaneous determination of dihydrofluorouracil and 5-fluorouracil in plasma by high-performance liquid chromatographyS P Ackland
Department of Medical Oncology, Newcastle Mater Misericordiae Hospital, Waratah, New South Wales, Australia
Anal Biochem 246:79-85. 1997..20 microM in 1 ml of plasma standards for both compounds. This method can be applied to pharmacokinetic studies of 5-FU in patients and may be useful as a means of assessing the activity of dihydropyrimidine dehydrogenase...