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Studying the cytolytic activity of gas plasma with self-signalling phospholipid vesicles dispersed within a gelatin matrix
No full textA synthetic biological sensor was developed to monitor the interaction of plasma with soft, hydrated biological material. It comprises phospholipid vesicles in a hydrated proteinaceous environment comprising 5% (w/v) gelatin. The vesicles contained a self-quenched dye, which was activated by vesicle destruction giving a clear fluorescent switch on. The interaction of bacterial toxins with the sensor was measured in a proof of principle experiment, then the effect of atmospheric plasma jets with the sensor, was studied in order to assess the cytolytic effect of plasma jets in biological systems. When the plasma contacted the gelatin surface perpendicular to the surface, the treatment resulted in the formation of a star-shaped pattern of microchannels that radiated out from the centre of the treatment area within the gelatin matrix, and locally damaged vesicles within the microchannels at a depth of 150 µm below the gelatin surface. Plasma jets applied in parallel to the surface of the matrix resulted in the formation of a single microchannel with damage to the vesicles only evident at the walls of the channel, and a much reduced penetration depth within the gelatin. Our data show that the effects of plasma can be deep in the gelatin material and that the angle of treatment significantly influenced the nature and level of damage to the gelatin and vesicles. Potentially this gelatin model can be used to unravel the roles of different plasma species and the direct effect of whole plasma contact, from those of primary and secondary species—i.e. primary, those emanating directly from the plasma and secondary, those species created in the 'target' tissue. This type of insight could be useful in the future development of safe and effective plasma medical technologies.
Iodine deficiency: a global problem
No full textThis item is a document written by Basil Hetzel for the Australian Medical Journal on the importance of iodine in foetal brain development.
Version 1 of “Teacher training and re-training for tomorrow”
No full textThis item is a version of a 7 page paper written by Dr Gregor Ramsey and presented to the conference of the technical teachers association, Adelaide in August, 1981. The paper is about the professional development of teachers in the context of recent changes and pressures in the higher education sector.
Untitled speech for the SPATE conference
No full textThis item consists of 5 pages of speech notes handwritten by Dr Gregor Ramsey. The speech is untitled, but is about recent and upcoming changes to the higher education sector. The speech was given at the SPATE conference held in Adelaide on the 25th of July, 1981.
CV of Dr John W. Creswell
No full textThis item is a 4 page CV of Dr John W. Creswell of the Department of Educational Administration at the University of Nebraska-Lincoln, dated July 1981.
Elimination of Iodine Deficiency as the most common preventable cause of brain damage [Folder Title]
No full textThis folder contains a brief document about Basil Hetzel’s paper “Elimination of Iodine Deficiency as the most common preventable cause of brain damage”.
Acceptance speech "Bridging the Knowledge Application Gap - The Global Elimination of Brain Damage Due to Iodine Deficiency"
No full textThis item is Basil Hetzel’s acceptance speech for being a recipient of Professor Kazue McLaren Leadership Achievement Award from the Asia Pacific Academic Consortium in Public Health (APACPH).
The effect of information technology (IT) on productivity : a study on luxury hotels in Thailand
No full textIn this particular situation that can be applied to other similar settings, IT investors must be very cautious to avoid under or over investment. For the thorough IT investment, one must consider customer demands, existing systems and personnel as well as proper strategic IT plans that link all levels of hotel management. Also of significant importance is proper IT training that can help improve perception towards job security and at the same time make IT operations more efficient. Internal training by qualified hotel staffs should be of first priority because it is cost effective and goal oriented. An integration of stated recommendation will lead to higher IT and overall productivity of Thai luxury hotels in the long run.
ACTU correspondence, August 1979 [Folder Title]
No full textThis folder contains correspondence sent to the Australian Council of Trade Unions (ACTU) from various individuals and community organisations seeking assistance, asking for advice, responding to media reports and offering support. The correspondence covers a range of matters for which people would seek assistance from the trade union peak body including asking for financial support for their organisation and expressing opinions on government legislation. Some correspondents encourage Bob Hawke to enter federal politics. Additional issues addressed here include disability pensions, unemployment, catchments, the Polish government and industrial disputes.
ACTU correspondence, November 1979 [Folder Title]
No full textThis folder contains correspondence sent to the Australian Council of Trade Unions (ACTU) from various individuals and community organisations seeking assistance, asking for advice, responding to media reports and offering support. The correspondence covers a range of matters for which people would seek assistance from the trade union peak body including asking for financial support for their organisation and expressing opinions on government legislation. Some correspondents encourage Bob Hawke to enter federal politics. Additional issues addressed here include uranium mining, unemployment, disability pensions, education and patents.