Scientists at Durham University hope to find out when and where dogs first became man’s best friend by examining DNA and bones from ancient remains – of wolves as well as dogs.
Sovereign territory was bought and sold throughout much of American history, and there are good reasons to think that an interstate market for borders could help solve many contemporary economic and political problems. But no such market currently exists. Why not?
2012 marked the 40th anniversary of the Clean Water Act, which established regulations for the discharge of pollutants to waterways and supported the building of sewage treatment plants. Despite these advances, sewage remains a major source of pharmaceuticals and personal care products (PPCPs) and naturally occurring hormones found in the environment.
To make fuel cells more economical, engineers want a fast and efficient iron-based molecule that splits hydrogen gas to make electricity. Online Feb. 17 at Nature Chemistry, researchers report such a catalyst. It is the first iron-based catalyst that converts hydrogen directly to electricity. The result moves chemists and engineers one step closer to widely affordable fuel cells.
What U.S. scientists need to know as the dreaded 1 March deadline approaches
Louis W. Uccellini has spent 24 years with forecasting agency
This is a study of how the synergisms between cultural and structural factors, which played a major role during the historical fertility and nuptiality transition (first demographic transition or FDT), have continued to condition demographic innovations connected to the “second demographic transition” (SDT).
Study Finds Health Departments Hindered in Addressing Health Concerns from Animal Production Sites
Cross-posted from the SHARES Blog
The recent publication of Professors Crawford and Boyle’s opinion on the international law aspects of Scottish independence is an event not because it says anything new – most commentators (
