Fruit flies show how salmonella escapes immune defenses
Salmonella are wily and obnoxious bacterial invaders--escape artists capable of evading multiple immune responses and causing a harsh and debilitating intestinal infection.
Apr 16, 2008
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16/04/2008
Slowly-developing primates definitely not dim-witted
Some primates have evolved big brains because their extra brainpower helps them live and reproduce longer, an advantage that outweighs the demands of extra years of growth and development they spend reaching adulthood, anthropologists ...
Apr 16, 2008
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Study finds increased fragmentation of TV news audiences along party lines
Television news audiences are divided along party lines like never before, according to a new University of Georgia study that warns the trend may have damaging consequences for political discourse and democracy in America.
Other
Apr 16, 2008
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Measuring in 3-D
Today, complex optical free-form geometries are used primarily in car headlamps and in optics for cameras and digital projectors. These optical components are expensive to manufacture and to test. At Hannover-Messe on April ...
Engineering
Apr 16, 2008
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Researchers stumped by drug addiction paradox
From chocolate and caffeine to nicotine and cocaine, many of our most addictive foods and drugs come from plant toxins. Considering that plants originally developed these toxins to deter herbivorous predators, it’s ironic ...
World's oldest living tree discovered in Sweden
The world's oldest recorded tree is a 9,550 year old spruce in the Dalarna province of Sweden The world’s oldest recorded tree is a 9,550 year old spruce in the Dalarna province of Sweden.
Apr 16, 2008
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I'm listening -- conversations with computers
A computer system that can carry on a discussion with a human being by reacting to signals such as tone of voice and facial expression, is being developed by an international team including Queen’s University Belfast.
Computer Sciences
Apr 16, 2008
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Fast AFM probes measure multiple properties of biomolecules or materials simultaneously
New research demonstrates that novel probe technology based on flexible membranes can replace conventional atomic force microscopy (AFM) cantilevers for applications such as fast topographic imaging, quantitative material ...
Nanophysics
Apr 16, 2008
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Model predicts motorway journey time reliability
For car users and drivers of freight vehicles on motorways, being able to rely on the time taken to complete a journey is as important as the actual duration of the trip itself. For that reason the Ministry of Transport, ...
Engineering
Apr 16, 2008
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Early exposure to common weed killer impairs amphibian development
Tadpoles develop deformed hearts and impaired kidneys and digestive systems when exposed to the widely used herbicide atrazine in their early stages of life, according to research by Tufts University biologists.
Apr 16, 2008
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