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Energy and competitiveness are the buzzwords in George W. Bush's proposal for spending in the next fiscal year. But will the president's push really benefit researchers?
Advanced Cell Technology plans to tread cautiously on the ground left vacant by the collapse of a South Korean scientist's claims to have cloned a human embryo, as David Cyranoski reports.
A newly discovered species of dinosaur, characterized by a wonderfully elaborate head crest, is the oldest known member of the lineage that culminated in Tyrannosaurus rex more than 90 million years later.
Chameleon-like nanoparticles of gold can be used to indicate the presence of various biomolecules. Adding aptamers — DNA strands that bind only to specific molecules — to the mix opens up further possibilities.
During persistent infections, the immune cells responsible for killing infected cells and maintaining inflammation gradually stop functioning, allowing the pathogen to thrive. But can this process be reversed?
It is not difficult to be impressed by the grandeur of high mountainous regions, but it is difficult to reconstruct how the elevation of such regions evolved. A study of the Tibetan plateau does just that.
Conventionally, conduction in silicon is enhanced by doping — adding impurities that change the material's electronic structure. But exploiting surface effects in thin silicon films may offer yet other opportunities.
Conflict in the laboratory can depress attitudes, dampen prospects or even derail young science careers. Kendall Powell finds out how to resolve issues and stay on track.
