In the following example, the quantity of money in existence in a hypothetical community is $1 million, and the total income of the community is $10 million per year.
If, for example, the quantity of silver designated as the monetary equivalent of 1 ounce of gold (15 to 1) was less than the quantity that could be purchased in the market for 1 ounce of gold (say 16 to 1), no one would bring gold to be coined.
Take the glucose-TBA mixture as the example, the quantity of adsorbed TBA on the surface of TiO2 is more than that of glucose because the adsorption ability of TBA is stronger than glucose.
The knowledge of reference values may be important to estimate, for example, the quantity of lung edema and its distribution, which may be measured as excess tissue mass, relative to normal subjects.
For example, the quantity of NB-ARC-LRR, the largest class of R proteins, ranges from 92 in Brassica rapa [ 80] and 150 in Arabidopsis thaliana [ 81] to 438 in potato [ 57].
Some plans, for example, limit the quantities of drugs a patient may get each month.
Examples include the quantities of stock to be bought or sold, the amounts of various resources to be allocated to different production activities, the route to be followed by a vehicle through a traffic network, or the policies to be advocated by a candidate.
Now assume, in the case of this example, that the quantity of money in this community is somehow doubled, but in such a way that no one expects the quantity to change again.
Other vital enzymes such as cellulases, amylases, laccases and pectinases may also be produced (Choi et al. 2005), one unit of activity can be defined (for example) as the quantity of enzyme which, for 30 min at 37 °C, catalyses the splitting of 1 mg of glucose under experimental conditions.
Biophysical quantities can include, for example, the amount of carbon stored in particular ecosystem types, water availability or supply, or fodder production.
