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 ...
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 ...
April 11 (UPI) --Scientists have successfully determined the color of an ancient butterfly wing. It's the first time scientists have identified the color of a 200-million-year-old insect. The ...
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