Characteristics of organisms often vary widely across geographic space as a result of natural selection, migration and environmental heterogeneity. I present canonical trend surface analysis as an ...

New chemistry, new enzymology. With a new method that merges the best of two worlds — the unique and complementary activities of enzymes and small-molecule photochemistry — researchers at UC Santa ...

This paper develops a mathematical theory for solving deterministic, Lanchester-type, 'square-law' attrition equations for combat between two homogeneous forces with temporal variations in fire ...

A canonical finding from earlier research is that the cross-sectional variance of income increases sharply with age Deaton and Paxson (1994). However, the trend in this age profile is not separately ...