درخت حوزه‌های تخصصی

The investigation of the content and circumstances of domestic influences on foreign policy outcomes constitutes part of the challenge of conceptualization in foreign policy analyses. This paper contributes to that research agenda, aiming to isolate and to analyze the crucial causal forces of Brazil’s international power projection (or lack thereof). To achieve these objectives, the paper uses the model of neoclassical geopolitics, emphasizing geopolitical agents’ perceptions and capacities as pivotal domestic variables, and undertakes an empirical test on a single case study of Brazilian geopolitical design (2003-2018). The paper adopts a qualitative phenomenological approach, operationalized by techniques of process tracing and discourse analysis. Results show that the deterioration of Brazil’s relative potential and the lack of improvement of Brazil’s position in foreign affairs are most likely explained by (a) geopolitical agents’ choices, which have made (b) South American integration a top priority with respect to Brazil’s geopolitical design

Emotional self-regulation plays a very critical role in promoting intelligence beliefs and improving students' academic performance. Through emotional self-regulation, students can believe in the effectiveness of their intelligence and achieve higher performance in their educational and learning processes. The aim of the present study was to investigate the relationship between IQ beliefs and chemistry performance with emotional self-regulation mediation in students. This study was applied in terms of purpose, and considering data collection procedure, it was descriptive-correlational. The statistical population included all 275 female students of 11 public senior high schools in Mahmudabad, the 11th grade, in the academic year 2020-2021. Based on the census method, the whole population of the research community was used as a sample. The instruments used for data collection included the Intelligence Beliefs Questionnaire (Babaei, 1998) and the Emotion Self-Regulatory Questionnaire (Gross & John, 2003).  Also, the final score of the chemistry course was used as the chemistry performance of the participants. To analyze the data, Kaiser-Meyer-Olkin test, Bartlett’s test, correlation coefficient, regression, path analysis and structural equation modeling were used. The findings showed that there was a statistical significant relationship between intelligence beliefs, emotion self-regulation and students' chemistry performance. In addition, intelligence beliefs and emotion self-regulation have a direct effect on students' performance in chemistry. Also, intelligence beliefs have a significant effect on the performance of students' chemistry lessons through the mediation of emotion self-regulation. It should be mentioned that the research model had a very good fit. Given that intelligence beliefs and emotion self-regulation can predict the performance of students in the chemistry course, it is recommended to modify cognitive beliefs and teach emotion self-regulation techniques in order to improve students' academic performance.

This study aimed to determine the effectiveness of Gagne’s model of instructional design on the attention and working memory capacity of students with attention deficit hyperactivity disorder. This study adopted a quasi-experimental design with pretest-posttest and a control group. The statistical population of the current research consisted of all fifth-grade female students with attention deficit hyperactivity disorder in Tabriz in the academic year 2021-2022. In this study, 30 students with attention problems (scores higher than 72 in the Connors Parent Questionnaire) were selected as the sample and randomly assigned to the experimental and control groups. The experimental group underwent eight training sessions, four sessions per week, each for 30 minutes, using the Gagne’s training model while the control group did not receive any training. It should be mentioned that the computer version of the selective and divided attention and working memory tests were used to collect data. The data were analyzed using multivariate analysis of covariance (MANCOVA) and SPSS 22 software. The results showed that Gagne’s model of instructional design is effective in increasing divided attention (P <0.048), selective attention (P <0.018), reducing reaction time (P <0.009), and increasing working memory capacity (P <0.047) in students with attention deficit hyperactivity disorder. Therefore, it is suggested that the content of courses requiring great attention and concentration be designed using Gagne’s model of instructional design and presented to students in order to increase the amount of divided attention , selective attention and working memory capacity and reduce reaction time.