That tension becomes especially clear with heart rate zone training, a popular five-tier system that endurance athletes use ...

This is an important contribution that largely confirms prior evidence that word recognition - a cornerstone of development - improves across early childhood and is related to vocabulary growth. This ...

Holdings from the library at the Goddard Space Flight Center, which includes unique documents from the early 20th century to the Soviet space race, will be warehoused or thrown out. By Eric Niiler Our ...