Integer Programming (IP) is a very powerful technique for tackling problems which have a mixture of continuous and discrete activities, notably those involving scheduling. Unlike Linear Programming (LP), IP cannot simply be treated as a black box.
The Anion Gap is an approximate measurement of ions, that is molecules with a charge, either negative or positive. Sodium and potassium are positively charged and therefore called cations; this is why they are often represented as Na+ and K+ respectively.These two are the main cations measured in the blood.he Anion Gap is an approximate measurement of ions, that is molecules with a charge, either negative or positive. Sodium and potassium are positively charged and therefore called cations; this is why they are often represented as Na+ and K+ respectively.
âUnlike a high anion gap, obtaining a low anion gap is relatively rare. One of the most common causes of a low anion gap is a low albumin level (which constitutes ~80% of the unmeasured anions). Correspondingly, an increase in the number of cations, either organic (eg, paraproteins as in multiple myeloma) or inorganic (bromide, lithium, Iodine or polymyxin B) can lead to low anion gap values.