For tests of trend in risk across successive levels of categorical variables, median values of each category were fitted into the risk models as successive integers (Rothman and Greenland, 1998).
Comparable trends occur in flowering plants, in which leaves at successive levels of plant maturity often show a progressive increase in the complexity of lobing or toothing.
It is possible that the complex of inactive p42 MAP kinase and inactive Rsk acts as a single signal reception particle and that the activation of the two kinases may be better described as a fork in a bifurcating signal transduction pathway than as successive levels in a kinase cascade.
Synthesizing theoretical and empirical perspectives, Bourke presents an expanded view of social evolution to explain the major transitions between successive levels in the biological hierarchy.
The rich, alluvial soil has been accumulating in the Ulúa valley for thousands of years and is found between successive levels of occupation in the village Henderson and Joyce are excavating.
Well-developed organ systems permitted an increase in body size, which gave rise to successive levels of predators.
Participating sports clubs will be encouraged to implement the strategies in accordance with three successive levels of accreditation (see box 1).
A multi-level optimization approach is also implemented by narrowing down the size of search space for individual design variables in each successive level of optimization process.
In each successive level, the follower encounters a prophet and assimilates his knowledge, but the philosopher finds the celestial spheres (Ibn 'Arabî, al-Futûhât 1997).
The approach taken by REVEAL is started from the bottom of the lattice, and evaluates the score at all points in the successive level until a point is found with a score of 1.0.
Catastrophism, doctrine that explains the differences in fossil forms encountered in successive stratigraphic levels as being the product of repeated cataclysmic occurrences and repeated new creations.
