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Science News Archive 2008 - Page 57


Page 57 of 240

Opening a can of worms: Serendipitous discovery reveals earthworms more diverse than first thought

A study by Cardiff University scientists has revealed that common earthworms in the UK are composed of multiple distinct species, each with unique roles in food chains and soil ecology. The discovery, published in Molecular Ecology, sheds new light on the importance of earthworms in agriculture.

Wildfires cause ozone pollution to violate health standards, new study shows

A new study by scientists at the National Center for Atmospheric Research finds that wildfires can boost ozone pollution to levels violating US health standards. The research focused on California wildfires in 2007 and found that they repeatedly caused ground-level ozone to spike to unhealthy levels across a broad area.

Researchers teach computers to search for photos based on their contents

A team of Penn State researchers has developed a new approach called Automatic Linguistic Indexing of Pictures in Real-Time (ALIPR) that enables computers to recognize the contents of photographs. The system uses statistical models to assign keywords to images based on pixel information, improving accuracy rates up to 90%.

SourcePenn State·JournalIEEE Transactions on Pattern Analysis and Machine Intelligence·DateOct 9, 2008

Promising new material that could improve gas mileage

A Northwestern University-led research team has identified a new material that can transform thermoelectric technology into one that converts waste heat into electricity, potentially improving gas mileage by 5-10 percent. The discovery is promising and could lead to widespread use in the automotive industry and other applications.

SourceNorthwestern University·JournalAngewandte Chemie·DateOct 9, 2008

Vitamin D a key player in overall health of several body organs, says UC Riverside biochemist

Research by Anthony Norman identifies vitamin D's potential contributions to good health in immune systems, insulin regulation, heart and blood pressure, muscle strength, brain activity, and reducing cancer risk. Adequate intake is essential for 36 organs, including bone marrow, prostate, and breast tissues.

SourceUniversity of California - Riverside·JournalAmerican Journal of Clinical Nutrition·DateOct 9, 2008

A new hand -- and signs of sensory recovery

A new hand transplant has shown emerging sense of touch in a 54-year-old man's former 'hand area' of the brain 35 years after amputation. The brain's map of the individual fingers is still evolving with increasing sensation, but researchers are optimistic about the potential for future recovery.

SourceUniversity of Oregon·JournalCurrent Biology·DateOct 9, 2008

Genome sequences of 2 malaria parasites defined

The genome sequence of Plasmodium knowlesi has been defined, providing new research opportunities for comparisons with P. vivax. Establishing similarities and differences between the parasites' genomes will assist in the selection of genetic targets for vaccine and drug development.

SourceResearch Australia·JournalNature·DateOct 8, 2008

Using living cells as nanotechnology factories

Researchers at Arizona State University have developed a method to produce complex DNA nanostructures inside living cells, using the cell's copy machine to replicate millions of copies. This breakthrough could enable the scaling up of DNA nanotechnology and open up new possibilities for synthetic biology applications.

SourceArizona State University·JournalProceedings of the National Academy of Sciences·DateOct 8, 2008

Tracking down the cause of mad cow disease

Researchers at TU Munich and ETH Zurich develop a new method to synthesize anchored proteins, enabling in-depth studies of prions and their influence on conversion to pathogenic forms. The team successfully produces a synthetic GPI-anchored protein, which attaches to cell membranes, helping to track down the infectious form of the prion.

SourceWiley·DateOct 8, 2008

Cosmic eye sheds light on early galaxy formation

Researchers at Durham University and Caltech used gravitational lensing to study a young star-forming galaxy in the distant Universe, revealing its internal velocity structure and spiral disk. The findings provide insight into how the galaxy evolved into a present-day system like our Milky Way.

SourceDurham University·JournalNature·DateOct 8, 2008

Protection for stressed-out bacteria identified

Researchers have discovered how bacteria respond to stress, shedding light on their infectious potential and the development of new drugs to combat bacterial infections. The stressosome molecule protects cells from external danger, triggering a response to adapt to changes in environment.

SourceResearch Australia·JournalScience·DateOct 8, 2008

A fine balance

V3 neurons play a vital role in maintaining balance between both sides of the body, ensuring robust stepping rhythms. The discovery provides an important milestone in understanding neural circuitry that coordinates walking movements.

SourceSalk Institute·JournalNeuron·DateOct 8, 2008