But in deploying several cross-layering approaches, one has to keep in mind the possibilities of occurrence of unintended interactions and side effects.
Unintended null functions can arise during the development of complex programs, and like dead code, such occurrences indicate serious flaws in program structures.
Both intended and unintended media effects stem from social cognitive theory because they illustrate the influence the media possesses in shaping audience behaviors and actions.
Many of those at risk of unintended pregnancy have little income, so even though contraceptives are highly cost-effective, up front cost can be a barrier.
