As technology has developed the cards have become a rich source of data for the companies that offer them.
Information theory, which arose around midcentury, has also become a rich source of combinatorial problems of a quite new type.
The Australian is no fan of Fairfax Media – except when it comes to hiring journalists, at which point it becomes a rich source of talent.
The value of real experience is well demonstrated by the way in which some of the top consulting firms have become a rich source of CEOs.
Even beyond taking advantage of vastly improved theatrical sound systems, both in theaters and in the home, such films have become a rich source of DVDs, downloads and accompanying compilation and inspired-by albums, like Jay-Z's take on Ridley Scott's forthcoming "American Gangster".
The theory of variational inequalities has become a rich source of inspiration in both mathematical and engineering sciences.
Variational inequality theory, introduced by Stampacchia [1], has become a rich source of inspiration and motivation for the study of a large number of problems arising in economics, finance, transportation, network and structural analysis, elasticity and optimization.
The mixed equilibrium problem (1.3) has become a rich source of inspiration and motivation for the study of a large number of problems arising in economics, optimization problems, variational inequalities, minimax problem, Nash equilibrium problem in noncooperative games and others (e.g., [9 14]).
With the rapid increase of the quantity and quality of available metagenomics sequences, metagenomes have become a rich source for the discovery of novel viruses [ 1- 3].
