Functional architecture of E. coli genetics as revealed by the natural decomposition approach. Red-labeled nodes represent global transcription factors.

A necessary and sufficient condition is given for a linear functional on a partially ordered topological vector space to be expressible as a difference of non-negative continuous linear functionals.

The decomposition of leaf litter constitutes a major pathway of carbon and nutrient cycling in terrestrial ecosystems. Though it is well established that litter decomposition varies among species, ...