Don Smith
University of Southern Queensland
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Publication
Featured researches published by Don Smith.
Photochemistry and Photobiology | 2009
Alfio V. Parisi; Don Smith; Peter William Schouten; David J. Turnbull
The solar erythemal UV irradiances through human hair and the protection from UV provided by human head hair have been investigated for a solar zenith angle (SZA) range of 17–51° for the conditions of a head upright in full sun, a head upright in shade and a head in full sun tilted toward the sun. The two hair lengths investigated were 49.1u2003±u20037.1u2003mm for the short type and 109.5u2003±u20035.5u2003mm for the long type. For the head upright in full sun, the irradiances through the hair ranged from 0.75 to 1.4u2003SEDu2003h−1 for SZA <25° and <0.6u2003SEDu2003h−1 in shade. The ultraviolet protection factor (UPF) ranged from approximately 5 to 17 in full sun, with the UPF increasing with higher SZA. The longer hair provided a lower UPF than the shorter hair and for the head oriented toward the sun, there was a marginally lower UPF than for the upright head. This research shows that the UV exposure limits to the scalp through hair can be exceeded within short timeframes and provides important information to assist employers to comply with Workplace Health and Safety legislation.
Radiation Protection Dosimetry | 2012
Alfio V. Parisi; David J. Turnbull; N. Downs; Don Smith
A dosimetric technique has been employed to establish the amount of erythemal ultraviolet radiation (UVR) protection provided by facial hair considering the influence of solar zenith angle (SZA) and beard-moustache length. The facial hair reduced the exposure ratios (ERs) to approximately one-third of those to the sites with no hair. The variation in the ERs over the different sites was reduced compared with the cases with no beard. The ultraviolet protection factor (UPF) provided by the facial hair ranged from 2 to 21. The UPF decreases with increasing SZA. The minimum UPF was in the 53-62° range. The longer hair provides a higher UPF at the smaller SZA, but the difference between the protection provided by the longer hair compared with the shorter hair reduces with increasing SZA. Protection from UVR is provided by the facial hair; however, it is not very high, particularly at the higher SZA.
Sa Journal of Industrial Psychology | 2001
Ronel Erwee; Bernadette Lynch; Bruce Millett; Don Smith; Gert Roodt
Archive | 1998
Satrina Harvey; Bruce Millett; Don Smith
Sa Journal of Industrial Psychology | 2001
Gert Roodt; Carli Kinnear; Ronel Erwee; Don Smith; Bernadette Lynch; Bruce Millett
Archive | 2002
Ronel Erwee; Lesley Willcoxson; Don Smith; Cec Pedersen
Archive | 2012
Cec Pedersen; Robert White; Don Smith
Archive | 2011
Cec Pedersen; Robert White; Don Smith
Archive | 2010
Cec Pedersen; Robert White; Don Smith
The International Journal of Knowledge, Culture, and Change Management: Annual Review | 2004
Cec Pedersen; Don Smith; Jon Austin