Sept. 6 (UPI) --According to a new study, the distribution of prime numbers is similar to the positioning of atoms inside some crystalline materials. When scientists at Princeton University compared ...

Healthy aging induces parallel changes in brain functional activity and structural morphology, yet the interplay between ...

Endogenous demand composition across sectors due to income elasticity differences, or Engel's Law for brevity, affects (i) sectoral compositions in employment and in value-added, (ii) variations in ...