Petri nets are graph representations of networks consisting of two types of nodes: places, representing entities like proteins, genes, metabolites etc, and transitions, representing reactions or, in general, state changes of entities.
The concentration change of each entity x i, 1 ≤ i ≤ m, is the sum over all fluxes of reactions where it appears as a product minus the sum over all fluxes of reactions where it appears as a reactant, mathematically [ 19] (4) ẋ i = ∑ j ≠ i n a i j v j - ∑ j ≠ i n b i j v j for i ≤ 1 ≤ m.
We make a distinction amongst evolutions that are characterised by either a migration of an entity towards another entity type, generation or deletion of an entity, or change of value of an entity attribute.
With respect to the beginnings of projective geometry, Kepler introduced the idea of continuous change of a mathematical entity in this work.
Reward/penalty rates change with the behavior of entity.
{ c n i > c n i - 1 → T max i < T max i - 1 } { c p i > c p i - 1 → T max i > T max i - 1 } Reward/penalty rates change with the behavior of entity.
In addition, time-resolved changes of these entities pre-/post-BCG need to be considered.
2.4 Genotype: part of an entity (for example, subset of features) which can potentially pass on changes (acquired during lifetime of entity, incorporated into the said part) to offspring during a multiplication process (the process is copying).
The genotype is that part of an entity which can potentially pass on changes (acquired during lifetime of entity, incorporated into the said part) to offspring during a multiplication process, called copying.
The initial drop size, temperature difference between the hot fluid and the low boiling solvent and the nucleation rate governed the rate of change of the drobble (combined entity of drop and bubble) diameter and its rise velocity.
An example of motion in the wider sense is an act of the will: it is a change of state of some entity (namely the mind or soul), but would not have been thought of as local motion by most medieval thinkers – thought and will were generally regarded as immaterial processes (see Cross 1999, p. 75).
