Current approaches to design motivational technology for behavior change focus on either tailoring motivational strategies to individual preferences or on implementing strategies from behavior change theory. Our goal is to combine these two approaches and translate behavior change theory to text messages, tailored to personality. To this end, we conducted an online survey with 481 participants ...

Schlieren imaging in wind-tunnels is extensively utilized to study the effects of air on an airplane surface. One of the interesting subjects for research is to study the effects of speed change on the airplane surface. Speed change results in occurrence of shock waves, which are visualized as lines on Schlieren images. In this paper, we study the problem of detecting speed of a plane after occ...

Two stages gas guns are used for various purposes, particularly for mechanical characterization of materials at high rate of deformations. The performance of a two stages gas gun is studied in this work using the theory of the two-stage gas gun proposed by Rajesh, numerical simulation using combined Eulerian/ Lagrangian elements in Autodyna commercial code and experiment using a two stage gas g...

Background: The content of nutrition education and the process of behavioral change should be designed based on the principles of educational for achieving behavioral goals. This systematic study aimed to evaluate the effectiveness of nutrition interventions designed mainly by health educational and promotional theory and models. Methods: The PubMed, Science Direct, Scopus, and Cochrane databas...

A ‘Theory of Change’ approach overcomes many of these obstacles; it involves making sure that you know what you want to achieve, when you want to achieve it by and that you know how you are going to get there, adapting methods and goals as you go along. The evaluator plays an active role in working out, with all stakeholders, the long-term objectives for the initiative. The mid-term objectives ...