The percolation model of stock market speculation allows an asymmetry (in the return distribution) leading to fast downward crashes and slow upward recovery. We see more small upturns and more intermediate downturns.

After parameterizing the local environments of amino acids into nine categories depending on three secondary structures and three kinds of hydrophobicity (solvation) of amino acids, we could design and construct the 16,290 pairwise-contact energy parameters of amino acids by the quasi-chemical...

The percolation model of stock market speculation allows an asymmetry (in the return distribution) leading to fast downward crashes and slow upward recovery. We see more small upturns and more intermediate downturns.

The percolation model of Cont and Bouchaud for the herding of noise traders is generalized to take into account also the fundamental value of the traded object, not only the behaviour of other traders. Monte Carlo simulations with 10012 and 77 traders give no drastic change in the histogram of...