As a society that has increasingly gravitated towards eating out at usually more unhealthy restaurants than partaking in healthier home cooked meals, this problem has proven to be more systematic.
The United Nations with its vastly diverse membership, despite some of the inherent problems, has proved to be useful and is still surviving.
The Excel platform, although not without problems, has proved to be flexible enough to create an easy-to-use, and graphically and numerically comprehensive program.
Godunov type schemes, based on exact or approximate solutions to the Riemann problem, have proven to be an excellent tool to compute approximate solutions to hyperbolic systems of conservation laws.
Ultimately, such training programs might prove useful as an adjunct to prevention programs for sexual aggression on college campuses, where existing approaches to this serious behavioral-health problem have proven to be inadequate (e.g., Anderson & Whiston, 2005; DeGue et al., 2014).
The study of polytopes associated with combinatorial problems has proven to be important for both algorithms and theory, but only recently the study of design polytopes has been pursued (Moura, Math. Appl. 368 (1996) 227 254; Moura, Ph.D. Thesis, University of Toronto, 1999; Moura, Proc.
Learning systems based on student projects oriented to the solution of real problems have proved to be efficient in the different educational levels.
Interventions that focus on participants' self-confidence and self-efficacy in dealing with symptoms and work-related problems have proved to be effective [ 13- 15].
All of the above problems have proven to be either NP-hard or NP-Complete, and many researches have been conducted to solve them efficiently.
