درخت حوزه‌های تخصصی

Purpose: The primary objective of this study is to design a socio-economic model of book publishing with an emphasis on the cultural economy. Methods and Materials: This study employs a grounded theory approach with an inductive movement trajectory. The research process begins with data from the field and literature, leading to conceptualization and determination of relationships between concepts. The statistical population includes all available documents and in-depth interviews with experts in the field of book publishing. The sample size is determined based on theoretical saturation and purposive sampling. Data collection methods include in-depth unstructured and semi-structured interviews, and document studies aimed at discovering and extracting concepts and their interrelationships. Qualitative and conceptual content analysis methods were used through open, axial, and selective coding. Findings: The study identifies several critical factors influencing the book publishing industry in Iran. Key factors include liquidity (5.71%), content production (16.32%), economic conditions (12.06%), social trends (15.19%), cultural trends (4.34%), media (4.34%), legal frameworks (1.93%), and support and infrastructure. Content production emerged as the most significant factor, highlighting the importance of aligning publishing strategies with audience preferences and socio-cultural trends. Economic conditions and social trends also play crucial roles, indicating the need for adaptive strategies in managing financial and social dynamics. Conclusion: This study provides a comprehensive socio-economic model of book publishing, emphasizing the cultural economy. The findings underscore the importance of financial management, content alignment with audienc

Intellectual impairment is one of the most common mental disorders associated with impaired balance and impaired motor performance. The aim of this study was to investigate the effectiveness of game-based intervention on postural control and motor performance in children with intellectual impairment. The population of this study was all of the intellectual impaired girls of Tehran and Mashhad City, and sample consisted of 20 educable intellectual impaired girls, who were healthy physically and voluntarily participated in this research. The subjects were randomly divided into two equal experimental and control groups (n=10). The experimental groups had six weeks of game-based intervention with two sessions per week. During this period, the control group control group engaged in the routine activities of the physical education class. The Timed Up and GO and Stork tests were done as pre-posttest, respectively. Data were analyzed through descriptive and analysis of independent T-test. The findings showed that the implementation of the six-week exercise program led to improvements in static balance (P=0.001) and motor performance (P=0.001) of the participants in the game group compared to the control group. The findings of the study underline the importance of early, structured interventions for children with mild intellectual disabilities, particularly those based on game. Such interventions not only improve motor performance and balance but also contribute to overall physical, cognitive, and social development. Given the positive impact of game-based interventions, they should be integrated into rehabilitation and educational programs for children with intellectual disabilities to support their development and improve their quality of life.

The pathophysiology of heat stress occurs when the body's environmental and physiological responses exceed its ability to maintain homeostasis. When internal heat signals or external factors raise body temperature beyond a certain limit that the cooling mechanisms can effectively manage, the resulting increase in core temperature triggers response pathways that themselves induce physiological stress. The primary response mechanisms to heat stress include sweating, peripheral vasodilation, and shivering as thermogenic responses—all of which are activated by elevated temperatures and may seem counterproductive to the body's requirements, yet they operate through a neuromuscular and hormonal feedback system. Genetic factors influence individual heat tolerance; for instance, certain populations have variations in heat shock proteins (HSP70) and ion channels (TRPV1, RYR1) that enhance their heat response and tolerance. Additionally, individuals with higher relative VO2 max levels demonstrate greater heat tolerance, as those who are physically trained exhibit more sudomotor activity and effective evaporative cooling compared to untrained individuals. Furthermore, individuals who acclimatize to heat over time develop improved thresholds for heat stress, enabling them to better regulate internal and cardiovascular temperature stresses during exposure. This knowledge is crucial for populations at risk and in situations where physical exertion is required in hot conditions.

Adverse Conditions in the Professional Lives of English Instructors: Recommendations to Ameliorate Teacher Resilience Abstract The present qualitative study strived to examine Iranian English instructors’ experiences of adverse conditions in their teaching environments. To yield this purpose, 30 novice language institute English instructors in Tabriz (Iran) were selected as the participants. To triangulate the data, we utilized interview and narrative data collection techniques. Adapting inductive, bottom-up approach to analyzing the themes, three main themes were generated: teacher factors, contextual factors, and student factors. The findings of the study were ascribed to the participants’ resilience in their academic settings. The findings can provide the teacher educators and educational psychologists with certain guiding principles regarding teacher resilience. The results of the study has a number of implications for pedagogy and teaching practice as well as the educational psychology and teacher education . Keywords: adverse conditions, emotional regulation, psychological wellbeing, teacher education, teacher resilience