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ABC model of flower development guided by three groups of homeotic genes. The ABC model of flower development is a scientific model of the process by which flowering plants produce a pattern of gene expression in meristems that leads to the appearance of an organ oriented towards sexual reproduction , a flower.
The three-term contingency (also known as the ABC contingency) is a psychological model describing operant conditioning in three terms consisting of a behavior, its consequence, and the environmental context, as applied in contingency management. The three-term contingency was first defined by B. F. Skinner in the early 1950s. [1]
Psychology professor Finn Tschudi's ABC model of psychotherapy uses a structure similar to a decisional balance sheet: A is a row that defines the problem; B is a row that lists schemas (tacit assumptions) about the advantages and disadvantages of resolving the problem; and C is a row that lists schemas about the advantages and disadvantages of ...
The latter phase has been modelled using the ABC model, which describes the biological basis of the process from the perspective of molecular and developmental genetics. [citation needed] A diagram illustrating flower development in Arabidopsis. An external stimulus is required in order to trigger the differentiation of the meristem into a ...
Activity-based costing (ABC) is a costing method that identifies activities in an organization and assigns the cost of each activity to all products and services according to the actual consumption by each. Therefore, this model assigns more indirect costs into direct costs compared to conventional costing.
Conjointly using these two models in a 2x3 matrix (P = B × E to create a top and bottom row, and the ABC model to create three columns across each of the two rows), Gilbert identified six variables which he believed were necessary to improve human performance: information, resources, incentives, knowledge, capacity, and motives.
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The gene which Superman interacts with (APETALA3) is a member of the B-Function group of the ABC model of flower development, [7] which is typically responsible for the development of Stamen and Petals. Other important members of the ABC model of flower development include APETALA1, APETALA2, AGAMOUS, and PISTILATA. [9]