Competition between two populations tends to eliminate one of the populations from their common habitat, when competition is focused on a single resource and when the populations do not otherwise interact. It is known that two microbial species competing for a single rate-limiting nutrient cannot grow together in a chemostat under steady-state operation, but eventually the species with the lowe...

We report a simple stepped growth process for the synthesis of carbon nanotubes (CNTs) having excellent field emission properties. CNT growth was interrupted in the process. During the interruption, the catalyst was re-activated in-situ. This resulted in enhanced growth of the CNTs after the interruption and a film of CNTs re-grew on top of an existing CNT film at much higher rates. The enhance...

abstractthe study of linguistic devices variously referred to as stance expressions is one of the best means by which the relationship between the writer, the reader, and propositional meaning could be examined. this paper looks at a particular structural group of lexical bundles encoding stance expressions. these are bundles starting with an anticipatory it followed by is, a predicative adject...