What factors determine a government's decision to abandon a currency peg or to continue to use a fixed exchange rate? This question may be logical when one recognizes that governments can borrow international reserves and exercise other policy options to defend fixed exchange rates during...

1. Genetic code : emergence of symmetrical pattern, beginnings of matrix genetics -- 2. Symmetries of degeneracy of the vertebrate mitochondrial code in the matrix form -- 3. Biological evolution of dialects of the genetic code -- 4. Numeric genomatrices of hydrogen bonds, the golden section,...