Fluctuation

Motivation for learning a new language is both self and time-oriented. The language learner’s motivation experiences gradual fluctuation over time and the view of oneself is different on each timescale of the study. Interaction among different timescales throughout the Second Language Development (SLD) is a novel area of investigation (de Bot, 2015). In order to probe this interactive nature, the present study tried to examine the motivational dynamics of a group of language learners in longer timescales composed of a number of tasks performed on shorter timescales. To this end, a group of university students were surveyed at the onset, while performing tasks and at the end of the course to better picture the interplay of different motivational themes over time. The results revealed different manifestations of components of L2 Motivational Self System (L2MSS) over different timescales of the study. Apart from this evolutionary manifestation of L2MSS components, ANNOVA results revealed significant difference between scores of each individual component among all three timescales. In sum, results of the study confirmed temporal and visionary variation in participants’ motivation. Finally, some implications were driven from the findings of the study.

Purpose: Attention is a significant factor for the learning process, and it may affect the degree and efficiency of student’s learning and their teaching. Methodology: Therefore, the present paper aims to examine the effect of the fluctuations in daily and weekly rhythms, and chronotype (morningness-eveningness) on the attention performance of preschoolers. The research’s methodology is a causal-comparative one. The statistical population includes 100 preschoolers in Tehran who were selected by purposeful sampling. They were tested in different hours of day (8, 11, 13, and 15) and weekdays (Saturday, Sunday, Tuesday, and Wednesday). Findings: The data were analyzed by mixed analysis of variance. The results show that preschoolers’ performance is different for different days of week and hours of day (p<0.01). |and in comparison with the attention performance of evening and intermediate types, that of morning type shows no significant difference in educational environment during day and week (p<0.01). Discussion: The practical implications of these findings for the planning of school schedules are benefit.

The spread of volatility between financial indices indicates the process of information transfer between markets. Despite the relationship between financial markets, the information created in one market can affect other markets as well. Therefore, the main purpose of this study is to investigate the volatility of energy and steel prices and the experimental test of inter-market volatility spillover. To do this, the monthly data of steel and energy price (oil and gas) during 2009 to 2019 were collected from valid databank using VECM and GARCH Family and VAR model and ICSS algorithm were analyzed by considering and without considering structural failure. Then, the causal relationship between them is examined through Granger causality test. The results show that there is volatility in the energy market (oil and gas) as well as the steel market during the studied time period. Results also show that the price of steel as well as its return and index are changed significantly by energy price effect. However, there is a causal link between energy prices and steel products and these results are consistent with the theoretical basics of the study and review of literature.