STUDY 1: DIURNAL RHYTHM
OF CARDIAC TROPONIN UNDER STANDARDIZED CONDITIONS
However, since Atkinson et al  showed that the amplitude of the diurnal rhythm
is higher in trained compared to untrained subjects, the aim of the present study was to assess the effects of time-of-day on aerobic and anaerobic performances during field testing (i.
8 [micro]g/dl), elevated urinary free cortisol (>110 [micro]g/day) and/or disturbed diurnal rhythm
of cortisol secretion (midnight cortisol level>7.
of fulmars Fulmarus glacialis in the Arctic autumn.
This difference is not a simple consequence of environmental conditions that the animals experience during their periods of activity, because the same pattern is seen when animals are confined to thermal gradients in the laboratory, where the usual diurnal rhythm
in thermal conditions is eliminated (Huey et al.
What to Woolf is a matter of taxonomy, however, for Mangnel is a question of diurnal rhythm
In addition to the progressive age-related decline in testosterone concentrations, the diurnal rhythm
of testosterone secretion also wanes with age.
The patient is asked questions covering behaviors over the last 2 weeks in seven domains: paranoid and delusional ideation, hallucinations, activity disturbances, aggressiveness, diurnal rhythm
disturbances, affective disturbances, and anxieties and phobias.
was observed at all three temperatures, lowest at 08:00 and highest at 20:00 h.
She argues, "The only way to truly get a sense of the diurnal rhythm
, the measuredness of things, is to read an untold number of daily entries in a row" (21).
Universal, reliable and even human-made light, completely independent of diurnal rhythm
, has abolished the shamanist aspects of our calling.
Strictly speaking, a diurnal rhythm
should not be called circadian until it has been shown to persist under constant environmental conditions and thereby can be distinguished from those rhythms that are simply a response to 24-hour environmental changes.
These results suggest that the diurnal rhythm
of [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] uptake in cotton is modulated by temperature changes rather than by the light/dark cycle.
The results may be at least partly explained by disturbances in the diurnal rhythm
and subsequently the melatonine levels, which affects the pigmentation in the skin.
This is a somewhat surprizing finding as Thayer (1989) reported tension to follow a diurnal rhythm
, with a peak in the early evening.