We derive an exact nonlinear nonlocal macroscopic equation for the time evolution of the conserved order parameter rsr, td of a microscopic model binary alloy undergoing phase segregation: a d-dimensional lattice gas evolving via Kawasaki exchange dynamics, satisfying detailed balance for a Hamiltonian with a long range pair potential gdJsgjxjd. The macroscopic evolution is on the spatial scale...

3 From the Editors trail documenting what the system is supposed to do (and not supposed to do), why the design should work, and what assumptions are being made. So, to hold software producers accountable, we need a mature discipline of forensics for computing systems and components. But getting there will require some radical changes in software development practices, since in addition to deli...

I t is possible to think of the responsibilities of corporate managers on either the macro level--accountable to w h o m o r the micro level--accountable for what. Discussions of managerial responsibilities on the macro "to whom" level have been ongoing for years, certainly since Berle and Means (1936) first noted the replacement of company owners by professional managers, without reaching a wi...