The Endangered Species Act's economic impacts are unclear due to inadequate data, according to a University of Wyoming economist. The lack of scientifically-based national estimates of the economic benefits of most listed species limits decision-making.
Scientists capture high-resolution images of Neptune's clouds and their movement, providing fresh insight into the planet's extraordinary weather. The observations reveal a powerful equatorial jet stream and storms dwarfing Earth's most violent storms.
Perkin-Elmer and SmithKline Beecham collaborate on bioinformatics research to speed drug discovery. The partnership aims to develop sophisticated systems for data collection, analysis, and management.
A University of Washington study found no significant difference in mortality rates between patients treated with anti-clotting drugs or balloon angioplasty after a heart attack. The study compared over 3,000 patients and showed that medical costs were lower for those treated with thrombolytic therapy.
Researchers discover native weevil that targets Eurasian watermilfoil, slowing growth and potentially providing a natural control method. The weevil lays eggs on the plant's tips, which hatch and eat their way through the stem, reducing milfoil's spread.
Transforming growth factor beta (TGFb) uses a simple signaling pathway to convey distinct functions in different tissues, despite its multifaceted role. Researchers have identified the key steps involved in translating TGFb signals into individual patterns of gene expression.