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Science News Archive September 2004 - Page 4


Page 4 of 12

Anthrax enzyme images reveal secrets of antibiotic resistance, suggest new drug design

Researchers at St. Jude Children's Research Hospital have uncovered the structure of an enzyme that produces folate, a nutrient essential for bacterial survival. The team created images of the molecular structure using X-ray crystallography and discovered a new target for drugs that could avoid antibiotic resistance in anthrax bacteria.

New fossil sheds light on old mystery

A new Chinese fossil discovery sheds light on the evolution of protorosaurs and their long-necked marine reptiles. The Dinocephalosaurus species' 25 cervical vertebrae neck may have enabled a unique suction-based feeding method, allowing it to capture prey more effectively in water.

SourceField Museum·JournalScience·DateSep 23, 2004

Wolverine takes a road trip

A wolverine with a GPS collar traveled 543 miles over 42 days, crossing three states and multiple national parks. The study's findings suggest that wolverine populations may function over a vast geographic scale, highlighting the need for habitat conservation and cooperation among agencies and landowners.

SourceWildlife Conservation Society·JournalNorthwest Science·DateSep 22, 2004

Scientists find nanowires capable of detecting individual viruses

Harvard University scientists have developed nanowire detectors that can identify single viruses using specific receptors, offering a highly sensitive solution for diagnostics and biosafety. The technology has the potential to detect viral infections at early stages and distinguish between different strains and variants.

SourceHarvard University·JournalProceedings of the National Academy of Sciences·DateSep 22, 2004

New signs of life found at the Poles

Researchers have found that rock-dwelling micro-organisms can photosynthesise and store carbon just as much as plants in the polar regions. The discovery suggests that even the most inhospitable places may harbor surprising habitats for life, including other planets like Mars.

SourceBritish Antarctic Survey·JournalNature·DateSep 22, 2004

Researchers discover 'hole' in global warming predictions

A study by Saint Louis University researchers reveals a region in the Midwestern United States where summer daytime temperatures are not expected to rise as high as elsewhere, contrary to previous climate projections. The finding suggests that the impact of global warming on this region may be more complex than previously thought.

SourceSaint Louis University·JournalGeophysical Research Letters·DateSep 21, 2004