It may refer to a lack of knowledge of a quantity by an observer, or to the experimental inaccuracy with which a quantity is measured, or to some ambiguity in the definition of a quantity, or to a statistical spread in an ensemble of similary prepared systems.
To the Tharaka people, knowledge of the quantity of rainfall received in each season is an important guide to their livelihood support system.
This tool aims to improve the quality of care within the emergency departments with rapid access to pertinent data, integration of care's protocols and assures knowledge of the quantity and the quality of medical activity.
There are still considerable uncertainties about carbon stocks in tropical rain forest, coming essentially from poor knowledge of the quantity and spatial distribution of forest biomass at the landscape level.
That is to say, Wolff believes that there are times when our "knowledge of the quantity of things" is determined empirically (i.e., by means of the senses), and other times when it is determined by reason (e.g., contained in a thing's Principle of Being).
The knowledge of key quantities and parameters such as the amount of absorbed gas, the heat of sorption, or the diffusion coefficient is of great importance for a rational design of related processes.
Knowledge of their quantities under physiological and pathophysiological conditions is therefore required.
The knowledge of such quantities in analytic form yields computational advantages and enables important physical interpretations.
"To break the 10% [uncertainty] barrier for our knowledge of cosmological quantities is a real step forward".
Our scheme requires the previous knowledge of several quantities, but those can be obtained in an adaptive way.
