Study also reports users lose trust in systems that give phony ratings Online “recommender systems” are used to suggest highly rated selections for book buyers, movie renters or other consumers, but a new study by University of Minnesota computer science researchers shows for the first time that a system that lies about ratings can manipulate users’ opinions. Over time, however, users lose trust in unscrupulous systems. The Minnesota research group, led by professors Jos

Results from the ASCOT (Anglo Scandinavian Cardiac Outcome Trial) study have shown that patients receiving the cholesterol controlling drug, atorvastatin, are more than a third less likely to have heart attacks, and more than a quarter less likely to suffer from strokes.

The results of the study, announced today at the American College of Cardiology annual scientific session in Chicago, USA, and simultaneously published online in the Lancet, show that in a study of more than 10,305 people w

Scientists have been studying mutant plants that take an unusually long time to flower. At the SEB conference on Thursday 3 April, researchers from Horticulture Research International will present the results of their investigation into a RING finger protein (RING stands for Really Interesting New Gene) involved in regulating when a plant will flower.

Dr Stephen Jackson and colleagues have been working with mutants that have altered flowering times. One particular mutant that takes a long ti

Scientists at Horticulture Research International have been studying natural mutations in vegetables in the hope of identifying the genes responsible for limiting uptake of caesium. The results of their quest, to be presented at the annual SEB conference suggest ‘safe’ crops could one day be grown on radioactive soil.

Four million people in Belarus, Russia and the Ukraine currently live in areas where 137Cs deposition densities to soils exceeded 37 kBq m-2 following the Chernobyl accident in

Many shark species, including the great white and mako, swim at speeds greater than their morphology should allow. Dr. Adam Summers (University of California) has discovered they achieve this speed by changing the stiffness of their body by pressurising their thick, inflexible skin. “This study could help answer questions about the evolution of the shark, especially why sharks abandoned a bony skeleton in favour of a cartilage structure,” said Dr. Summers who will be presenting his findings on Frida

The broad barred goby is a coward. A sweeping statement you may say, but even though the goby is poisonous to its predators, the cowardly fish still spends almost all its time cowering in an inaccessible coral home 20-30 cm in diameter. A new study, to be presented to the Society for Experimental biology on Wednesday 3rd April, reveals how the fish has adapted to extremely low oxygen concentrations (hypoxia) in order to avoid venturing out from its coral den.

Dr. Göran Nilsson, from the Univ