مطالب

Focusing on the methods of encouraging and punishing architectural design students, the current research has compared this topic in two methods of face-to-face and virtual education so that the results can be considered as a strategy used by professors in teaching architectural design courses. The present research has been done by comparative analogy method through content analysis with the help of library studies and survey in the form of analysis of available resources as well as interviews with fifteen instructors of architectural design who have more than ten years of teaching experience in this field Considering the analysis of interviews and their coding and comparing the ways of encouraging and punishing students in physical and virtual education of architectural design courses. The professors emphasized that, in general, the type of behavior, the type of speech, the nature of the lesson, the student's ability, physical condition, and mental condition are among the things that should be considered in encouraging and punishing students. Considering that corporal punishment is not correct and can also question the self-esteem of people, the teacher must consider the best way of punishment for wrongdoers according to the mentioned cases. On the other hand, it should be avoided to encourage a person in the class constantly or to encourage a specific person because of good behavior in the class, and encouragement and punishment should be done only because of academic issues.

Gridshell structures are a type of bending-active structures. In the present study, bending-active grid structures are selected since it is simple to construct curved elements to create exciting and diverse architectural forms with minimum manufacturing energy consumption and minimum wastage of materials, they are strong shells against all kinds of forces and are less addressed in Iran. In this regard, the present study tries to determine the optimal geometric form of grid shells by comparing different geometries. Also, it investigates the geometry of anticlastic, synclastic, and free forms to help improve the structural performance of the bending-active grid shell. The hardness of these shells fully depends on their shape, therefore efficient forming helps to control their hardness and structural behavior. The structural performance of the grid shell is analyzed using Kangaroo Physics and Karamba plugins in Grasshopper software. In constructing bending-active gridshell structures, the shell geometry is drawn based on the changes in numerical variables such as geometric dimensions, opening length, etc., using the digital form-finding method in Kangaroo Physics and Karamba plugins in Grasshopper software and Galapagos optimization, and the final optimal form is designed. Next, the form is investigated against various stresses and loads including bending, shear, etc. The final model, selected by comparing different geometrical modules, shall have the lowest stress and the least displacement so that it can be significantly effective in designing and constructing the optimal forms of temporary bending-active gridshell structures.

Iranian stock market, as a reflection of the real sector of the country's economy, has experienced many uncertainties and challenges in recent years. One of the macroeconomic factors that vaguely affects stock market is exchange rate, which has a significant volatile pattern with several overshoots during recent years. As a result, analyzing the impact of the exchange rate on stock price has become important as always. Bearing the restrictions on Iran’s trade and spectacular role of exchange rate in Iranian economy along with monetary expansion and fiscal dominance in mind, stock market reacts to exchange rate fluctuations in an asymmetric way. In order to prevent the impact of outliers and parametrical failures, this study seeks to examine the impact of exchange rate fluctuations on the stock price using quantile regression. Based on daily data between 2020/10/12 till 2024/12/20 and using first difference of both stock price logarithm and exchange rate logarithm, it became vivid that the impact of the exchange rate on the stock price is different in estimated quantiles and it is U shaped. Meaning when Stock market is stable and there are no absolute pattern of growth or crash around the median, exchange rate could not explain the stock price significantly. However, if the stock market goes bearish or bullish, quantiles where market is on its lowest or in top two quantiles, exchange rate has a crucial positive impact on the market which complies with evidence in the sample period.

The growing popularity of language-learning apps among language learners has highlighted the need for rigorous evaluation of their efficacy in second language acquisition (SLA). This study combined quantitative measures to comprehensively understand the effectiveness of the Busuu app in improving the productive vocabulary of Iranian intermediate EFL learners with qualitative data from in-depth interviews to explore their perceptions and experiences while using the app. Forty-three learners (17 males and 26 females with a mean age of 27.53) were selected to assess the effectiveness of the Busuu app on learners’ productive vocabulary knowledge. Among them,15 participants (all female with a mean age of 29.40) agreed to be interviewed after the Busuu study to gain insights into learners’ perceptions and experiences with app-based learning. A pretest-posttest design using the LEX30 task, a standardized productive vocabulary assessment tool, was conducted before and after the Busuu study to evaluate participants’ productive vocabulary knowledge. Paired samples t-tests revealed no significant improvement in participants’ productive vocabulary knowledge. Nonetheless, the number of responses produced in the posttest was higher than in the pretest. According to the interview data, users rated vocabulary as the most favored feature of the app, while restricted access to premium content was noted as the least favored. Most participants acknowledged that the app exceeded their initial expectations before installing it. Additionally, improving vocabulary knowledge was the users’ primary expectation from utilizing the app. Furthermore, approximately all participants found the app beneficial for language learning. However, most of them reported low levels of enjoyment during app usage. The results can contribute to understanding what needs to be done to upgrade the quality and potential of the Bussu app, how the app can better support EFL learners in effectively activating their lexical knowledge, and what the users’ experiences and expectations from a language-learning app are.