In the same spirit, and in order to have a rich imputation model compatible with the analysis model, Stuart, Azur, Frangakis, and Leaf (2009) argue for the necessity of including in the regression models those variables that lead to some minimum additional R-squared.
This purported high stick during overtime in Game 6 of the 1993 Campbell Conference Finals is still griped about amongst Leafs fans who argue that it should've been a penalty, and claim that it led to Gretzky scoring minutes later.
Yan and Wang (1990) studied 11 flag leaf traits in indica-japonica hybrids, and argued that flag leaf length (FLL), FLW and flag leaf area (FLA) were controlled by two pairs of genes with at least more than 60% heritability.
In addition to the large body of work on cellulose δ2H and δ18O [73], [74], [74], several authors have argued that leaf water 2H enrichment is evident in leaf wax δ2H [71], [75], [75], suggesting that the combined signal of source water and transpiration may be retained in sediments, and that this may be used to reconstruct past hydrological dynamics.
Premature leaf fall would thus be a bad thing.Anthocyanins, Dr Hoch argues, provide a natural sunscreen for a plant's leaves.
I argue that leaf dimorphism is a consequence of selection on flower size and architecture.
They argue the leaf shown features more sections and has a more pointed outline than the Canadian version.
The new species was rejected in 1924 by Charles Gardner, and again in the 1970s by Nelson, who argued that leaf shape is inappropriate grounds for erecting a new species in this context, and that, in terms of systematically important characteristics, A. intermedius is indistinguishable from A. barbiger.
