Facial treatments generally test the human threshold for fear, pain and anxiety.
The human nose is relatively insensitive; for example, the human threshold for butyric acid is nearly a million times higher than it is for a dog.
A mercaptan/methane ratio of the order of 200 ppm in the adsorbed phase is sufficient for the gas phase to have a mercaptan concentration above the human threshold for detection.
Indeed, taste-masking is achieved if, within the frame of 1 2 min, drug substance is either not released or the released amount is below the human threshold for identifying its bad taste.
Although the haptic feedback in a real capsulorrhexis procedure is below the human threshold of haptic sensing, this simulator enables an experiment to determine the effectiveness of "haptic training wheels" -- the idea of haptic training for a task without haptic feedback.
Displayed within each condition box are two series of bar plots—one showing human threshold data and the results of the ideal observer simulations, and one showing human efficiencies.
The TMO proposed by Ward-Larsen et al. also performs logarithmic compression of the luminance as well as an iterative histogram adjustment constrained in slope by the human threshold versus intensity.
On the other hand, if these claims are not true, might there be a line of demarcation, some essential content (even in the "soft sense"), which would render an enhanced existence past a certain point "distinctive," particular, beyond the human threshold?
Human threshold values or TTC values have been determined for structural classes of compounds using probabilistic approaches based on databases of toxicological testing for both cancer and non-cancer endpoints on a wide variety of chemical structures (EFSA 2012).
This threshold corroborates the threshold commonly used in the human clinic, but could certainly be discussed in the context of a dog population, particularly as the human threshold was chosen as the depth at which tooth brush bristles can no longer reach sufficiently into the pocket to clean the teeth.
