Large doses of vitamin A taken by a pregnant woman also can cause developmental abnormalities in a fetus, especially if taken during the first trimester; the precise threshold for causing birth defects is unknown, but less than 3,000 μg (10,000 IU) daily appears to be a safe intake.
Their model identified a precise threshold for global food prices that, if breached, would lead to worldwide unrest.
Various guidelines for microscopic interpretation address these aspects, but, because of difficulties in defining precise thresholds of cumulative atypia, different pathologists may interpret the guidelines in different ways.
First we identify all words that were not used during the first years of the group, and that were consistently used for at least some years thereafter (for precise thresholds, see Text S2 in Supporting Information S1).
Precise threshold values for diabetic patients and normal controls need to be further explored for the individual I- mIBG variables (HMR, WR and TDS) to define CAN, and these cut-off values may be dependent on patient demographics and acquisition.
Choosing appropriate performance metrics and determining precise threshold values for these metrics is not a trivial task and becomes more challenging if the workload pattern is continuously changing [13].
As seen in Additional file 2 and Additional file 3, CTen's performance is robust to the precise threshold used for developing the HECS gene databases.
In Table 1 below we have included the precise thresholds in (frac{gamma }{beta } ) for several (n).
While we are beginning to put together a picture of the Earth's tipping points, the precise thresholds beyond which we risk irreversible change, deleterious for human societies, are as yet unknown.
Capital levels have to be increased in order to meet the various demands of the Basel and UK regulators – with the latter's precise thresholds still unclear.
