Not exact matches
By analyzing the chemical composition
of the water in which the animals lived during the
duration of the experiment, the researchers
determined that
exposure to space induces distinct differences in metabolism and / or secretion.
Dose,
duration, manner
of exposure, biochemical individuality, genetic propensity, diet quality and stress levels combine to
determine the degree
of ill effects.
The research team established that
duration of exposure and the distance between the eye and the display (which
determines the amount
of light reaching the back
of the eye) affects melatonin levels.
A diagnosis
of FAD may be
determined after assessing the history (age
of onset,
duration and seasonality
of signs, known or suspected environmental flea
exposure) and physical examination findings (pruritus, compatible clinical signs, and lesion type and distribution pattern).
However, in that study, age at neutering was not available, and thus,
duration of exposure to gonadal hormones for each dog could not be
determined.
The severity
of the effects are
determined by the concentration and
duration of the
exposure.