درخت حوزه‌های تخصصی

The development of knowledge and advancement in technology has created a wide-ranging transformation in societies and has led to changes in the per-formance of companies in order to respond to environmental turmoil and social expectations. In this way, they tried to gain a significant competitive advantage over other competitors. The purpose of this study was to investi-gate the moderating role of managerial fortification in relation to the impact of technology-based capabilities on the product market competition of knowledge-based companies in the capital market: a source-based capabili-ties (DEA). This research is applied in terms of purpose and in terms of data envelopment analysis is a quasi-experimental and post-event research in the field of positive accounting research. Then, based on multivariate regression, the research hypothesis was tested using Eviews software. The statistical population studied in this study consisted of knowledge-based companies listed on the Tehran Stock Exchange during the years 2015 to 2019 and 79 companies were selected and reviewed based on systematic screening. The result of testing the research hypothesis is that the technological capabilities have a positive and significant effect on the product market competition of knowledge-based companies in the capital market. This result demonstrates that the resource-based technology capability based on the source-based capabilities is seen as a resource against stagnation in a competitive environ-ment and helps the company, to maintain flexibility in the face of environ-mental change in order to respond faster, at the same time to develop the company's competitive capacity to create new resources or new and innova-tive products, and to make the company's future more attractive to stake-holders with greater returns and potential risk control.

The existence of bubbles in the market, especially the capital market, can be a factor in preventing the participation of investors in the capital market process and the correct allocation of financial resources for the economic development of the country. On the other hand, due to the goal of investors in achieving a portfolio of high returns with the least amount of risk, the need to pay attention to these markets increases. In this research, with the aim of maximizing return and minimizing investment risk, an attempt has been made to form an optimal portfolio in conditions where the capital market has a price bubble. According to the purpose, the research is of applied type, and in terms of data, quantitative and post-event, and in terms of type of analysis, it is of descriptive-correlation type. In order to identify the months with bubbles in the period from 2015 to 2021 in the Tehran Stock Exchange market, sequence tests and skewness and kurtosis tests were used. After identifying periods with bubbles, the meta-heuristic algorithms were used to optimize the portfolio. The results indicate the identification of 14 periods with price bubbles in the period under study. Also, in portfolio optimization, selected stock portfolios with maximum returns and minimum risk are formed. This research will be a guide for investors in identifying bubble courses and how to form an optimal portfolio in these conditions.

حرمت اشاعه فحشا در نزد فقها جزء مسلمات فقهی است. اما در برخی موارد باوجوداینکه موضوع اشاعه فحشا محقق است، ارتکاب آن جایز شمرده شده است. مسئله این است که حرمت اشاعه فحشا در چه مواردی استثنا شده است؟ موارد استثنا باتوجه به وجود دو مبنای مطرح (اظهار فحشا و یا اراده کثرت وجودی فحشا) در استفاده معنای اشاعه فحشا از آیه 19 سوره نور، متفاوت خواهد بود. ازاین جهت که در منابع فقهی به نحو مستقل به این مسئله پرداخت نشده است، نوشتار حاضر در صدد استخراج موارد استثنا از کلمات مطرح شده در ذیل مباحث مختلف فقهی است. هدف اصلی این نوشتار، تبیین محدوده حکم اشاعه فحشا در راستای تعیین وظایف مکلفین و نهادهای نظارتی در مواجهه با مصادیق اشاعه فحشا است. با فرض معنای اظهار فحشا برای اشاعه فحشا، مواردی مانند تظلّم و دعاوی، تشهیر، آگاه سازی، مبارزه با بدعت و مشورت دادن به تخصیص از حکم اشاعه فحشا خارج خواهند بود. اما درصورتی که کثرت وجودی و ارتکاب فحشا را برای اشاعه فحشا اختیار کردیم، بیشتر موارد مذکور از حکم اشاعه فحشا، تخصّصا خارج خواهند بود به غیراز مثل تظّلم که به دلیل متصور بودن کثرت و ترویج فحشا در آن به نحو تخصیص از حکم خارج است. این موارد گفته شده را مقاله به نحو تحلیلی مورد بررسی قرار داده است.

One of the most relevant areas in the field of Second Language Acquisition (SLA) that still merits further attention is the individual differences among English as Foreign Language (EFL) learners. With an eye on this issue, this study investigates the interrelations among stress coping strategies, foreign language anxiety (FLA), and language achievement among Iraqi EFL students. Utilizing a correlational research design, the study involved 150 upper-intermediate EFL learners who were randomly selected from EFL learners studying in two universities in Iraq. As for the data collection procedure phase of the study, the participants completed the Foreign Language Classroom Anxiety Scale (FLCAS) and the Coping Inventory for Stressful Situations (CISS) to assess their levels of anxiety and coping strategies. The results indicated that there wsa a significant negative relationship between task-oriented coping strategies and foreign language anxiety, as well as a positive correlation between task-oriented coping and language achievement. The findings highlight the importance of effective coping strategies in mitigating anxiety and enhancing language learning outcomes among EFL learners. Furthermore, the study highlights the need for instructors to foster task-oriented coping strategies to improve language achievement and reduce anxiety, thereby creating a more supportive and effective learning environment.

Since the Corona pandemic, the discussion of virtual education has been widely discussed and has entered all fields, including physical education. In the post-Corona era, this type of education has maintained and even expanded its specific audience, so that we are currently witnessing the growth of virtual sports clubs on social networks. Therefore, in order to understand the target market of this profession, sociological information from this group seems essential. Therefore, the purpose of this study is to study the demographic variables of virtual sports clubs on social networks. The statistical population of this study was the participants of a virtual women's club in one of the social networks, numbering 800 people, of which 233 were selected by simple random sampling method and their demographic information was obtained through an online form and the data received was analyzed using a descriptive-analytical method. This study showed that exercising in the virtual club was satisfactory from the participants' perspective, considering that the vast majority of them achieved their goals. Among the participants in the virtual club, the percentage of married people was much higher than single people, and young people aged 20 to 40 had the largest number of participants. The percentage of unemployed people was significantly higher than employed people. There was no significant difference in the type of online or offline use of sessions, but in a two-dimensional analysis of these variables with the variable of online or offline use of virtual sports, it was found that single people were more interested in the offline method and the flexibility of using class time than married people, people with a master's degree were more interested in other educational levels than other educational levels, and people aged 40 to 60 were more interested in the offline method and the flexibility of using class time than other age groups.