مطالب

Choosing the proper investment mechanism is one of the main tasks of any investor that requires careful analysis and research on all available information. Since no investor exactly knows whether his or her expectations for a particular stock return will be met, they need to build their strategy in such a way as to eliminate as much damage as possible in the event of an adverse outcome. This study aims to predict the optimal portfolio using Algorithm Analysis Systems. In this regard, 98 firms listed on the Tehran Stock Exchange were examined in 2015-2019. Then, random portfolios were selected to test the research hypotheses by separating value stocks and growth stocks. For analysis, two algorithms of Support Vector Machines and an Adaptive Neuro-Fuzzy Inference System were used to select the most desirable portfolio. According to the support vector machine algorithm analysis, the results confirm the difference between the Sortino and Marquitz portfolios. To build their portfolios, decision-makers often rely on growth stocks which can boost their expected returns. Therefore, recognizing the analytical nature of portfolio formation in specialized areas can help improve investment analysis and pave the way for higher returns.

INTRODUCTION: The use of executive coaching has become increasingly popular in the organizational world in the past few decades and is considered a key intervention that increases the capabilities of managers at the professional, individual, and organizational levels. This study aimed to identify the indicators, components, and dimensions of the effectiveness of executive coaching in the Red Crescent Society of Iran. METHODS: This descriptive study was conducted based on an applied research method. The required data were collected using exploratory interviews with 20 experts and activists in the field of human resources education. The obtained data were then analyzed using conventional content analysis, as well as open, axial, and selective coding strategies. FINDINGS: According to the findings of the research, orientation, sociability, regularity, empowerment, personality traits, and infrastructure conditions are among the most important factors affecting executive coaching in the Iranian Red Crescent Society. Moreover, two new constructs, namely formal and informal institutions were identified for the first time in the coaching literature as effective factors in the development of executive coaching. CONCLUSION: This study paved the way for filling in some gaps in executive coaching literature. Unlike many previously conducted studies that have only evaluated the effectiveness of executive coaching, this study identified the set of factors related to the individual, organizational, and institutional levels, as well as infrastructural conditions affecting executive coaching. Moreover, the results led to the addition of two new constructs, such as formal and informal institutions, to the literature on coaching in general and executive coaching in particular.

INTRODUCTION: Considering the significant contribution of public education to the reduction of damages incurred by disasters and crises in the country, the identification of all the components and dimensions of public education can be of great help to policymakers in this field in order to adopt a correct policy and decision. The current research aimed to investigate public education in natural disasters with the meta-synthesis method based on the seven-step model of Sandelowski and Barroso (2007). METHODS: The current qualitative research was conducted based on a meta-synthesis approach. The statistical population of the research included articles related to the research from 2000 until now. A number of 175 articles were retrieved, and after examining the title of the research, 105 articles were removed, and 70 papers were reviewed, out of which 36 papers were removed, and 34 articles entered the final stage for full analysis. Articles were searched in databases, such as Scopus, Emerald, Science Direct, Springer, Google Scholar, and Scientific Information Database (SID). FINDINGSThe selected sources were analyzed using Maxqda software, and the research findings were coded. In the open coding stage, 100 primary codes were extracted from 34 articles, and after extracting the primary codes, to categorize the concepts, axial coding was used, yielding 5 dimensions, 12 components, and their sub-components. CONCLUSIONAs evidenced by the obtained results, to reduce vulnerability, the responsible institutions can adopt appropriate measures that lead to learning and changes in the audience's behavior by using the presented model and considering the determined components and indicators in the process of public education. This model includes the stages of analysis, educational design, preparation and development, implementation, and evaluation.

Introduction: Educating people in different ways is one of the aspects of moral education. Education that plays an important role in the destiny of man and society. One of the issues in moral education is how to involve moral teachings in the political relations of countries. The purpose of this research is to investigate the ethical components affecting political development in higher education. Material and Methods: The current research was applied and implemented in a mixed manner. Thematic analysis method was used in the qualitative part. The statistical population was experts in the field of higher education (administrators and faculty members of universities), from among whom 10 people were selected by snowball sampling. The interview tool was semi-structured and the data was analyzed by coding method and MAXQDA software. In the quantitative part, the method was descriptive-correlation. The research community included experts in the field of higher education and international relations (academic faculty members, cultural advisors, and experts from the Ministry of Foreign Affairs), among whom 50 people were selected in an improbable and accessible way. The data were analyzed using structural equations and pls software. Results: The results of the qualitative part indicated 32 open codes and 6 core codes, which were categorized into 3 categories of educational relations factors at the international level, moral policy, civil and social development. The results of the quantitative part also indicated the appropriate fit of the model, so it can be said that ethics and ethics approaches in higher education can be effective in political development. Conclusion: The results of the findings show that in addition to the desire of countries to develop relations based on respect and moral policy, there are factors in three areas of educational relations at the international level, moral policy, civil, scientific and social development in higher education; Among them: relations based on respect, expansion of international relations, attention to human dignity, freedom, attracting participation, meritocracy, attention to scientific and civil institutions have an effect on political development