They exhibit remarkable sensitivity, wide dynamic range and robust performance that compares advantageously with conventional enzyme-linked immunosorbent assay (ELISA). ELISA is the most widely ...

Russia and other hostile states have become increasingly brazen in adopting “gray zone” attacks against Europe and the United States, leaving defense officials with a dilemma: How to respond ...

Twins are pretty rare, accounting for just 3% of births in the U.S. these days. But new research shows that for primates 60 million years ago, giving birth to twins was the norm.