11. Agent-based modeling is an experimental tool for theoretical research . 12. The journal describes itself as focusing primarily on original reports of experimental and theoretical research . 13. Nechai became the center's director in 1988 after three years directing its theoretical research department. 14. His theoretical research interests connect to an applied agenda. 15. There is a major experimental and theoretical research effort aimed at realising and understanding such systems 16. Some of these technologies are due to theoretical research , and others from commercial research and development. 17. He specialised in the technical utilisation of scientific results rather than to engage in theoretical research . 18. Her work is usually accompanied by theoretical research . 19. APHI conducts both observational and theoretical research . 20. Following these discussions, Heisenberg plunged into several months of intensive theoretical research , but met with continual frustration.