Science Progress articles from September 2001

Science Progress archives from September 2001

Fast trains, slow boats, and the ancestry of the Polynesian islanders.
September 22, 2001... The question of the origins of the Polynesians has, for over 200 years, been the subject of adventure science. Since Captain Cook's first speculations on these isolated Pacific islanders, their language affiliations have been seen as an...

Investigating urban geochemistry using Geographical Information Systems.
September 22, 2001... Geographical Information System (GIS) is an interactive digital extension of the two-dimensional paper map. Customised maps are created by the selection and aggregation of data from independent sources to assist studies in urban geochemistry....

Extracellular sensing and signalling pheromones switch-on thermotolerance and other stress responses in Escherichia coli.
September 22, 2001... The findings reviewed here overturn a major tenet of bacterial physiology, namely that stimuli which switch-on inducible responses are always detected by intracellular sensors, with all other components and stages in induction also being...

Bacterial biofilms and human disease.
September 22, 2001... The term biofilm is used to denote a polymer-encased community of microbes which accumulates at a surface. Biofilms are responsible for a number of diseases of man and, because of the intrinsic resistance of these structures to antibiotics and...