The Purple Aster

Aster - Abstracts

s of R. Aster in Chronological Order Comprehensive List of Abstracts

ASTER Global DEM Validation

Aster: Automatic Abstract Syntax

Modern parser generators typically require two components: an abstract syntax data structure and a concrete syntax grammar specification. Usually the abstract syntax and the concrete syntax are closely related but are specified independently because it is difficult to distinguish what parts of the concrete syntax are associated with the abstract syntax. There are a few add-ons to parser generat...

Purple America

A merica, we are told, is a nation divided. Maps of the electoral votes cast by the states in recent U.S. presidential elections reveal a striking pattern. The base of the Democratic Party is firmly rooted in the northeast and upper Midwest—a region stretching from Maine to Minnesota—plus the Pacific West, anchored by California. The Republicans are said to own an L-shaped region covering the S...

The petite purple photosynthetic powerpack.

Photoreaction centres are Nature's solar batteries. These nanometre-scale power producers are responsible for transducing the energy of sunlight into a form that can be used by biological systems, thereby powering most of the biological activity on the planet. Although to the layman the word 'photosynthesis' is usually associated with green plants, much of our understanding of the molecular bas...