Deterding, S., Dixon, D., Khaled, R. and Nacke, L. (2011a) âFrom Game Design Elements to Gamefulness: Defining âGamificationââ, Envisioning Future Media Environments - Conference proceedings, MindTrekâ11, Tampere, pp. 9â15.
The payback method is a simple way to evaluate the number of years or months it takes to return the initial investment. The payback period is usually expressed in years. Start by calculating net cash flow for each year: net cash flow year one = cash inflow year one - cash outflow year one.
Biofeedback may be used to improve health, performance, and the physiological changes that often occur in conjunction with changes to thoughts, emotions, and behavior.Eventually, these changes may be maintained without the use of extra equipment, for no equipment is necessarily required to practice biofeedback.iofeedback has been found to be effective for the treatment of headaches and migraines.