Strategic stability is one of the fundamental issues of the international system in a complex situation, which has faced different concepts, preconditions and rules due to the changes in the system elements. In addition, changes in systemic elements have strongly affected the strategies of actors to achieve stability. Therefore, changes in system elements have affected both cause and effect. Based on this, the issue of research around the effects of environmental changes on the theoretical and conceptual foundations of strategic stability and the effectiveness of actors' strategies from these changes in the changing world is complex.In response to the research problem, this hypothesis is proposed that in the complex changing world, the strategic system of actors, while focusing on the principle of change, is based on the principles of maintaining stability with low levels of conflict and tension, and to achieve this goal, all peaceful and coercive means are used. The findings of the research, focusing on the cascade model and with a descriptive-analytical approach and a qualitative method, express the dynamics of stability, increasing the probability of limited conventional conflicts, the existence of proxy wars, the low probability of unconventional conflicts, preventing the escalation of conflicts in a complex situation under the conditions of strategic stability governance between actors.

Basically, the arms race is as long as human history, and that is considered one of the most important phenomenon affecting the pattern of relationships between the units that form the international system; and it is for this reason, today, that it is considered as one of the most important theoretical and practical issues of international and regional studies. In this context, the regional orders in general, and regional order of the Middle East in particular, are faced with such an issue; so this article wants to examine the basic questions like “what variables have caused the formation of the arms race in Middle East?” and “how can the relationship between two variables (arms race and strategic stability) be defined in this region? ”In this article, it is believed that inefficiency of the Middle East strategic environment is the main cause of arms race and the strategic stability is a prerequisite for arms control regime in this region. Due to the lack of strategic instability in the Middle East, as well as the fact that no comprehensive security regime has been developed, arms race is considered as a reality in the regional order. To address this issue, this present article draws on a case study giving priority to theory. First, it develops a theoretical model, and then analyzes the arms race in the Middle East accordingly.

The aim of this study was to investigate the effect of using portulaca oleracea as a source of plant antioxidants for feeding fattening male lambs, on carcass traits, meat quality, and oxidative stability. Twenty-one male lambs with an average weight of 24±1.5 kg and 150±15 days old were fed with one of the experimental rations included a diet without portulaca oleracea as control, a diet containing 7.5%, and a diet containing 15% portulaca oleracea, for 84 days. The muscle (Longissimus dorsi) samplewas used to determine pH, chemical composition, colorimetric properties, and oxidative stability of meat. Meat lipid oxidation was determined after 1, 7, and 30 days of refrigerated storage using thiobarbituric acid (TBARS). The use of portulaca oleracea in diets improved meat color characteristics such as L, chroma, and Hue. The highest ash concentration and the lowest meat moisture were observed in the treatment of 15% portulaca oleracea (P<0.05). Meat pH was the lowest in the first hour after slaughter but did not differ at 24 h. Compared to the control, in both treatment groups feeding the lambs with portulaca significantly reduced the concentration of Malondialdehyde in the meat of the lambs and increased the meat oxidative stability (P<0.05). The results of this experiment showed that feeding portulaca oleracea by improving properties such as color and increasing the meat oxidative stability improves meat quality, which may have lead to an increase in its nutritional value in terms of human health.

Objective: People who have higher social health can more successfully deal with the challenges and ups and downs of playing key social roles and participate more in collective activities and prevent social deviations and anomalies. In this regard, foresight and the development of a forward-looking strategy model by the media can play an important role in promoting the social health of their audience (individuals).Method: This research has been done qualitatively and quantitatively. In the qualitative phase, content analysis and Q methods were used, and in the quantitative phase, factor analysis was used to analyze the Q method data.Results: The content analysis of the media in this study showed that the most media production in the field of social deviations with 576 cases and the lowest media production in the field of violence with 237 cases. The field of social quality with 485 and the field of social issues with 312 cases are in the second and third ranks. A small questionnaire was made and based on it, the desired model was designed using PLS software. Conclusion: This model showed that the function of media is effective in promoting social health of society and can have the greatest impact on improving quality of life, reducing violence, reducing social deviations and social issues.

The main purpose of this article is to examine how and to what extent Iran-Russia cooperation is effective in ensuring ‘broader’ strategic stability through balancing in the Middle East. Strategic stability and balance of power are interrelated components of the region’s order which have changed following the Arab Spring and the Syrian crisis. The article analyzes Iran and Russia’s impact on these two concepts, with a systemic approach, paying attention to interrelationship of variables at regional and international levels. Although strategic stability has been generally considered an issue at international level of great powers politics, this paper, emphasizing on evolution of international relations, believes in a new, complex and multilayered definition of strategic stability - a ‘broader’ one in the Middle East, which is not necessarily ensured by agreements or balance among great powers. The results indicate that Iran-Russia cooperative balancing in the Syrian crisis against the US and at regional level with emphasis on a broad regional balance system has been effective in providing ‘broader’ strategic stability in the region. Although Russia's policy in this field put some limits on Iran, strategically it serves Iran’s interests.

Today, rapid and varied environmental changes have prevailed over all organizations, especially defense organizations, and therefore managers in such environments,In addition to constantly trying to guide the organization during these developments, they need to constantly compare the current situation with the desired situation using conventional tools such as strategic control. The present article is a research that has been done on designing and explaining the strategic logistics control model of a defense organization in conditions of stability and crisis. This research is field-based in terms of collecting theoretical foundations and backgrounds, and field-based in terms of collecting data. According to the type of research, on the one hand, it has a developmental orientation and on the other hand, it has an applied orientation. Data collection tools,Documentation, strategic control patterns, and interviews are semi-structured and in-depth. This research is one-piece in terms of time horizon and the population and its statistical sample are professors, managers and logistics experts in the studied defense organization. In this regard, with studies and interviews conducted with the participation of the focus group,Dimensions, components and indicators of the model were counted and in the form of questionnaires and opinions of 48 experts and using confirmatory factor analysis and other tests, the validity and reliability of the factors and their priority were assessed. The final model includes four types of strategic control: mission-oriented, process-oriented gradual, flexible-oriented, and humanistic-fundamental, each of which has components and indicators in a state of stability and crisis.