The height and extent of exposure of the sentinel depends on environmental conditions: in the darkness of dawn or during danger, it perches on the edge of the canopy.
The associations with tertiles of exposure (height, weight, BMI, BSA) were very similar to previous findings when subjects diagnosed with thyroid diseases were excluded (see online supplementary table S2).
De Quervain's team treated 40 people with acrophobia, or a fear of heights, with three sessions of exposure therapy, giving half of them cortisol pills before treatment and the other half a placebo.
The samples were taken from the same part of a branch and the same insertion height and exposure: The height of two to three metres at the western exposure of trees was chosen and only fully developed leaves of about the same age status were selected.
The standard exposure height of the PMF sampling unit is 1.8 m above the ground.
As an approximation, these coefficients are generally taken to be independent of roof height and exposure.
The results of the height analyses, which showed some evidence of a positive effect of exposure to some tri- ortho-substituted PCBs on boys' height, were also limited because of sample size.
We compared the mean level of urinary MDA according to the extent of exposure controlling for age, sex, height, weight, heating fuel, and environmental tobacco exposure.
For each monitoring site, mean wave heights were recorded with respect to their angle of exposure, using the wave-rose data.
In the present study, 50,000 cycles were applied; this is approximately comparable to running four marathons for a person of average height or cumulative exposure during one week of top athletic activity.
