Robert G. Barnes

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The circadian rhythms of most shiftworkers do not adapt to night shift. We have studied oil workers on a rotating system involving 2 weeks day shift (0600-1800 h) and 2 weeks night shift (1800-0600 h) throughout a day and night shift sequence. Urine samples were collected 3-hourly whilst awake, with an over-sleep collection, for the measurement of(More)
The coordinated regulation of mitochondrial and nuclear activities is essential for cellular respiration and its disruption leads to mitochondrial dysfunction, a hallmark of ageing. Mitochondria communicate with nuclei through retrograde signalling pathways that modulate nuclear gene expression to maintain mitochondrial homeostasis. The monooxygenase CLK-1(More)
Previously we have shown that the 6-sulphatoxymelatonin rhythm of oil rig workers on a 2-week night shift (1800-0600 h) adapts to the shift via a phase delay. We now report the findings of a study on two offshore drill crews working a 1 week day (1200-0000 h), 1 week night (0000-1200 h) swing shift. Urine samples were collected every 2-3 h throughout the(More)
The temperature dependence of the nuclear spin-lattice relaxation rate R\ of Sc has been measured in scandium dihydrides and dideuterides. These data are satisfactorily accounted for by two contributions to /?,, R]e due to conduction electrons, and R]Q due to quadrupo le interaction fluctuations resulting f rom vacancy diffusion on the hydrogen (deuter ium)(More)
Evaluation events are major problems for graduate students in nursing. The purpose of this study was to determine the correlation of test anxiety before and cognitive interferences during a comprehensive examination. The sample (N = 54) consisted of two groups of students (Group I, N = 30 and Group II, N = 24) in a master's program at a state university.(More)
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