Gamification has recently been discovered as an excellent user engagement strategy that the potential to improve online education, brand engagement, and information system engagement. Even though number of studies on gamification expanded, there is currently no systematic literature review approach for categorizing its strategies. Therefore, main purpose this find effective strategies based gam...

Introduction . Keywords, reflecting the main content of article, play an extremely important role in search for scientific papers databases. Together with title and abstract, keywords provide primary information about study. Selecting extracting effective is a time-consuming process, so its optimization requires further studying. Purpose. The article aimed at acquainting authors journal methods...

We study the existence of eeective winning strategies in certain innnite games, so called enumeration games. Originally, these were introduced by Lachlan (1970) in his study of the lattice of recursively enumerable sets. We argue that they provide a general and interesting framework for computable games and may also be well suited for modelling reactive systems. Our results are obtained by redu...