This paper examines the negotiation of an international environmental agreement in which di¤erent countries determine the (nonenforceable) promises of investment in clean technologies to be included in the agreement. Furthermore, it analyzes countries’ optimal investments in clean technologies, considering that, in addition to the utility that countries perceive from an improved environmental q...

in the paper‎, ‎some new existence theorems of maximal elements for‎ ‎$mathscr{f}_{c,theta}$-mappings and $mathscr{f}_{c,theta}$-majorized mappings are established‎. ‎as applications, ‎some new existence theorems of equilibrium points for‎ ‎one-person games‎, ‎qualitative games and generalized games are obtained‎. ‎our results unify and generalize most known results‎ ‎in recent literature‎.

UNLABELLED Previous research has suggested elite Australian footballers undertake pacing strategies to preserve high intensity activity later in matches. However, this research used GPS with slow sample rates, did not express performance relative to minutes played during games and used lowly ranked players. METHODS Therefore in this study movement was recorded by GPS at 5 Hz. Running performa...

Abstract Background: This study aimed to investigate the effects of addiction to computer games on physical and mental health of students. Methods: The study population includes all students in the second year of public guidance schools in the city of Isfahan in the educational year of 2009-2010. The sample size includes 564 students selected by multiple steps stratified sampling.  De...

nowadays computers are increasingly being incorporated into school curriculums and serious games are occupying the educational games markets. this article addressed the integration of serious games as tools for learning and teaching english in iranian schools to zero-beginner students. an experiment was concluded using computer assisted language learning (call) to investigate the effectiveness ...

Maybe an event can't be modeled completely through one game but there is more chance with several games. With emphasis on players' rationality, we present new properties of strategic games, which result in production of other games. Here, a new attitude to modeling will be presented in game theory as dynamic system of strategic games and its some applications such as analysis of the clash betwe...

Background. The cadets experienced particular difficulties in a pandemic period because due to isolation and faced a number of unanticipated challenges like stress, anxiety, and low learning outcomes. Objectives: The aim of the study was to evaluate the effectiveness of sport and traditional games to improve cadets’ learning performance and motivation to learning activities and future service ...