Bifurcation and Degradation of Geomaterials in the New Millennium James J The h toric association between 9783540631705 The h toric association between demographicand macro economicvariablessuggests that the projected increase in elderly dependency ratios and the projected decline in the share of the working age population could result in slower per capita GDP growth Background and Context and covers topics including multiscale modeling experimental characterization and theoretical analysis of various instability and degradation phenomena in geomaterials as well as their relevance to contemporary issues in engineering practice