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Nostalgia or submit for the past is a mental state that appears in a person unconsciously and then becomes a thought. In the literature, this state occurs for a poet or writer, who, because of individual motivation or surrounding social, political situation, feels cut from the present time and raises the idea of returning to the past and its sweet memories. Abd -Al Wahhab Baiati and Mohammad Reza Shafie Kadkani, as two famous contemporary Arabic and Persian literature poets and gonfaloniers of the school of literary romanticism, refresh their memoirs according to their personal and social conditions; and their poem takes the color of pain, sorrow and yearning for the past and induces an atmosphere of submit and nostalgia to the audience. Therefore, in this research, the authors, using Hermeneutics approach and content analysis method, review and match the appearance manner of this poetic thought in these two poets' lyrics. The results showed that these two poets have subscription in nostalgic themes, staying away from land, childhood, lover, loss of values and myths.    

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Aim: Nowadays, the Internet is considered as an appropriate means of transferring knowledge in education and research processes. However, overusing the Internet may cause addiction. This problem may increase as the Internet usage increases. This paper attempted to study the Internet addiction among the students of Yazd universities. Methods: This research was a cross-sectional study conducted among 238 students of Yazd University Medical Sciences and 245 students of Yazd Payam-e-Noor University. The data were collected using the Internet Addiction Questionnaire introduced by Young. To analyze data, several statistical operations were conducted, including mean, percentage, Chi-square, Spearman’s correlation coefficient, Chi-two, and linear regression. Findings: Among the addicted students, 51% were from Payam-e-Noor University and 49% were from the University of Medical Sciences. Descriptive statistics also revealed that 51% of the addicted students were female and 67% of them were unmarried. Getting news and using e-mail services were mostly reported the Internet usages. Conclusion: Comparing with the previous studies, the Internet addiction has increased among the students of Yazd universities. This problem needs more concise investigation, and educational and counseling planning to reduce the Internet abuse.

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Background:Knee osteoarthritis is a common disease that causes pain and impairment of normal performance. The aim of this study was to compare the effects of the three combined training methods on pain and function in patients with knee osteoarthritis.
Methods and Materials:This study is a semi-experimental research, and it makes use of pretest and posttest methods in which 30 male patients were selected and randomly assigned into three groups, namely the experimental group 1, the experimental group 2 and the experimental group 3. The groups underwent an 8-week period of training. Pain severity and functions were measured via Visual Analogue Scale (VAS) and function through Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) questionnaires before and after exercise. Data were analyzed using variance analysis (ANOVA) (P < 0.05).
Results: The ANOVA demonstrated a significant difference between groups about pain (F(2, 27) = 35.12, (P < 0.01) and function (F(2, 27) = 32.7, (P < 0.01)). Post hoc analysis revealed significant differences between experimental groups 1 and 2 (P < 0.05) and experimental groups 1 and 3 (P < 0.01) regarding pain and function, but there was no significant difference between experimental group 2 and 3 for pain and function (P > 0.05).
Conclusion:Following the intervention, three groups showed a reduction in pain and improvement in function. The rate of recovery in the first experimental group was higher than other groups, and that a new approach in the treatment of patients suffering from severe pains was introduced in patients with patellofemoral pain syndrome.

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Non-epistemic values in scientific reasoning bring many discussions. One way to justify the role of these values is the argument from inductive risk. The aim of this article is to examine a version of this argument that is presented by Douglas. By raising the question about "evidential sufficiency", Douglas advances her argument to justify the influence of non-epistemic values. Assuming the correctness of Douglas' argument, we try to determine the answer of "evidential sufficiency" based on the conclusion of her argument. Even considering both epistemic and non-epistemic values, we will show that the question of sufficiency will not have a proper answer. Because to determine evidential sufficiency, we will either confront circularity or force to add other ambiguous things. Also, we will explain that Douglas should have sought the "evidential sufficiency" by emphasizing more on the practice of scientists in actuality, in which there is no requirement to incorporate scientific claims with policy-making claims. This criticism is sympathetic to some other criticisms of Douglas, according to which she incorporated pragmatic and epistemic domains of science.
 

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Among the most important lessons, as the most striking aspect of literature in any language and by which the main objectives of this field are met, are the courses related to the poetic texts. A great deal of Arabic language and literature is devoted to literary texts, among which much is devoted to the poetic texts. But for many years, the poetic texts are taught with traditional methods in this field and many of the teachers do not use new strategies in teaching of these texts. This has led the poetic texts not to be successful in reaching their main goals, meaning the improvement of literary talents of students and strengthening their desire and motivation to their field. This study tries to deal with the appropriate strategy performances in teaching Arabic poetic texts in Arabic language and literature useing survey and questionnaire methods. The population of this study includes the fourth and higher semester undergraduate students and Arabic language and literature field professors in the Universities of Tehran, Allame Tabatabaei, Beheshti and Tarbiat Moallem. The findings demonstrated that in many students’ and professors’ point of view, new strategies of teaching of poetic texts (i.e. semantic perception of poetry, aesthetic expression of verses and stylistic analysis) are performed less than the traditional strategies pertaining to correct reading of texts and expression of grammatical points.

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The effect of different levels of betaine and tryptophan on growth and resistance to salinities in the Caspian roach was investigated. Fish (1.90 ± 0.04 g body weight) were divided into 9 groups (4 treatments groups containing betaine (0.5 and 1), tryptophan (0.25 and 0.5), betaine and tryptophan mixtures (0.25- 0.5, 0.25, -1, 0.5-0.5 and 0.5- 1), and control group). After recording the growth factors, the fish were exposed to salinities (12, 16 and 20 ppt) and clinical symptoms and mortality rate were recorded. No mortality occurred in 12 ppt salinity. At 16 ppt, the lowest mortality (16.66%) was recorded in the treatment containing 1% betaine and 0.5% tryptophan, while the highest mortalty (59.98%) occurred in the control group. At 20 ppt salinity, 100% mortality occurred within 6 hours in the control, while in the other treatments 100%-mortality occurred after 24 hours. Behavioral symptoms, such as jerky movements, ataxia, increased respiratory rate, were more prominent in higher salinities. Tryptophan did not reduce food consumption meaningfully. Increaesd food consumption as the result of betaine did not show significant  effect on the fish growth rate.

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Iranian architecture was subjected to chaos and confusion from the late Qajar and early Pahlavi era. In this period we see the simultaneous construction of buildings, each representing one of the schools of a distinct period of history. The diverse and often conflicting tendencies in architecture of this period were mostly due to the differences between the political and ideological trends of this era of history, grounded in the political current of late Qajar and early Pahlavi. These different orientation have led to the institutionalization of a new style of architecture in the Qajar period that caused Iranian architecture to blend some specific factors of its form to those of far East, and put tradition and modernity face to face that is artistically pleasant. Combining tradition and modernity in architecture begins in Qajar. Numerous trips of kings and princes to Europe are the main cause of modernization arrival to Iran. This trend became faster in the period of Nasereddin Shah and Persian art took great strides during the Qajar king. Qajar is the period of conflicting architectural values and ideas, and diversity in urban architectural trends and styles. This diversity and contrast which is influenced by various factors of different approaches to modernity and tradition, can be mostly seen in the field of residential architecture, so that, the architecture of this period has been called, housing architecture or residential architecture. From the engravings of pillars and entrances to elements such as pediments and even windows forms and volumetric adaptation form the buildings only show a part of Qajar era architecture. This mixture occurred not only in architecture but also with changes in other organs and Iranian social phenomena, which, in its own time, was considered as modernism. In this paper, In addition to defining tradition and modernity, the following questions will be answered: (1) how is the confrontation of Iranian contemporary architecture (Qajar period) with East architecture? , (2) is it possible to see any relationship between architect’s designing of architectural elements and their time of formation? To find answers to these questions, arguing settlement method / technique of cross - sectional - interpretation is used. To collect opinions (informed people in the field of Architecture) questionnaire technique is used. The results show that, in recent one hundred and fifty years, modernity, has thrown light on many aspects of Iranian society, many theoretical and political conflicts of this period, from "Islamic solidarity" to "westernization", “Constitutionalism Movement "to" Islamic Revolution ", from "Marxism" to "Ziaeeian and Pahlavian modernity" and from "Alavi Shia" to "ideas of progress", were all part of efforts towards transforming, modifying, or enforcement and closing modernity. Changes in Iranian architecture during the Qajar and architectural trends towards West architecture, has not occurred uniformly and homogeneously and this is not encompasses all segments of the society; It was first emerged in the palaces of kings and then nobility. Emerging a gap between rich and poor classes and a heterogeneous picture in architecture of city was natural at this stage; riches’ houses became increasingly luxurious and those of poor were in traditional and old form. This resulted in the duality and conflict in the appearance of city. It means that the impact of European architecture was firstly revealed in royal buildings, then in public buildings and finally in residential architecture. These influences are mostly in the architectural forms and not in the methods or construction. In the late Qajar period, European architecture can be seen in all sectors and buildings. Complex decoration and tore the can be notably seen in Qajar architecture, these characteristics dates back to the introversion of Qajar architecture. Much attention has been paid to interior side and this part was separated from outside by complex decoration, but it gradually changed, since on the one hand, the materials used in construction were changed and new materials were used in construction, on the other hand, at late Qajar and early Pahlavi introversion changed to extraversion. The walls became short and exterior facades were noted, the spaces became more creative and diverse, and In a word, we can say that Naserrian fence was broken. In the meantime, many buildings, constructed in the Qajar period, were affected by Western architecture. In this study, we will examine more than fifty buildings of this historical period, recommended by the professors, but due to the limitation of this paper, only two outstanding works which were accomplished in the form of questionnaires, will be mentioned. After examining some architectural samples, we will find out more about the logical relationship between passage of time and West architecture and the historical importance of building. In term of historical period, a logical relationship is seen between the passage of time and West architecture. Based on the tests conducted, the correlation value is 48%, that with regard to 0.002 error, this is a substantial and highly significant number. In other words, the more we approach the end of the period, the more the building are under the influence of West architecture. This diversity and contrast which is influenced by various factors of different approaches to modernity and tradition, can be mostly seen in the field of residential architecture, so that, the architecture of this period has been called, housing architecture or residential architecture. In terms of historical importance of the building, the more we approach the end of the period, the relationship become more significant. Correlation value of 0.058 and the error rate of 0.017, show a relatively accurate and proper relation, so that we can expect that the building of the late Qajar have more historical significance than those of the early period. Likewise, in term of the significance of the contemporary building, there is also a significant relation. And again, the more we approach the end of the period, the relationship become more significant. This is quite evident according to Table 3 and 5.

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By Looking at Iranian Contemporary Architecture and it's different generations It can be found that there are examples of excellence in architecture which Can be based on the characteristics and components of the Architectural Review, They to a specific stream architecture in Iran and Independent of the architectural approaches of the West, as an affiliate. This research is based on case studies, it followed up with an analysis of the signs and current thoughts available in the text architecture, to identify trends and approaches in contemporary architecture generations and answer to the question whether there is significant sequence in the concepts used by architects at different periods? It is assumed that the defining trends of Iranian contemporary Iranian architects from Iranian modernism to nationalist tendencies, Revitalization or classical market, while It can also work in conjunction with the value and importance of the historical context of the assessment, Explaining the origins and reliable indicators, Makes the flow of existing theoretical on Iranian history of contemporary architecture be recognized. Defining the correct position of Iranian Islamic architecture in the post modern world elicits various points of view. The increasing importance of literature related to linguistic philosophy, post-constructivism, cultural relativism, and the end of ideology has instigated a sort of mental inflammation in the community of Iranian architects. A pragmatism abstracted from the environment is one of the trends that have developed in this respect. Based on results of a comparative analysis of three generations of Iranian contemporary architects work, Also, according to the authors describe, It follows that the theory of contemporary architecture in Iran, Within four specific categories, such as The giver ideas, Aesthetic style references, Selection Form and types of materials can be explained. The analysis of these four components in architecture works explains that the giver ideas of posit has been followed with more persistent in the pursuit of different generations and over time in comparison to the other components has less changes. This perception can underline the existence of a common discourse between color, smell and Iranian structure that can be the missing detail of the Iranian contemporary architecture. Throw a glance at current Iranian architecture and its generation, it is realized that there are some preferable samples in this period which could be referred as a special stream in Iranian architecture and in depended from west approaches, based on the type of characteristics and architectural criticize components. Iranian current architecture is one of areas that has not been studied exactly and by analyzing works and current stream and it is especially referable. It is realized from rapid and also extreme changing of Iranian architecture that the trend to classical architecture has been changed in different situation. These rapid changes have been happened due to modernizing and mechanism that could be considered as modern period effects. Iranian challenges with contemporarily, in recent two centuries, was expanded in governmental and intellectual parties. In this era, extreme changes was happened in the most areas including architecture and provide different approaches and simultaneously some intent to classical thinking. This research, based on case study approach, followed analyzing the signs and streams of consciousness in architectures work contexts, to realize the approaches of current generation of architecture and also find the answer for a question about finding a reputable track record in the used concepts with architects depending their different periods. It is assumed that, specifying the definition of Iranian current architect’s trend, like Iranian modernism, nationalism, renovate or classical popular approaches, helps to recognize theoretical stream of current Iranian architecture with realizing and specifying roots and valuable indicators, and furthermore can assess the importance and worthiness of each work. Reviewing current Iranian architecture shows, in spite of various generations, the main concepts have not any diversity and its evaluation will be realized and performed with improvement of these concepts. Anyway, because of this subject that the attention to current Iranian architecture for finding a reliable classification, needs reviewing basic concepts like methodologies, forms and architectural studies, as the basis of the effective items like design ideas, design locations and frame works, design themes, spatial concepts, visual shapes and the used material, therefore we have to realize the hide vision of these three generations of architecture, considering right viewpoint, to provide a statement for classifying or finding a similar theme between Iranian and current world architecture. Based on the results of comparative analysis of three generation of Iranian architectural works, and also regarding the clear-sighted authors description, it seems that, the stream of theory in Iranian current architecture could be realized as a framework by four specific categories including structural giver ideas, stylistics refers, form selecting and type of materials. Analyzing these four categories in architectural works shows that the structural giver ideas have been followed by different generation with more persistent and have the minor changes than other categories during this era. This perception discovers a common thought in Iranian current architecture that can be the missed stream of it. The trends and ideas underlying a design are the main concepts on which the main design of a work of architecture is based on. Conceptually, the structural idea of a design is the main definition that architecture is based upon and in some literature, it is even viewed as a concept. Based on evaluation and analysis of the frameworks of the prominent works of Iranian architecture of three generations, mainly after the Islamic Revolution, structural ideas of architectural designs and the product of prominent Iranian works of architecture is a mélange of international and regional intellectual currents, the leading culture of the designs as they relate to their era and social, political,cultural and economical interactions. Furthermore, a deep review of contemporary architecture in Iran after Islamic reveloution, points out a lack of familiarity with main universal contemporary architectural theory, which is the main reason behind the architects, designers, professors and researchers of architecture, and most importantly, those who enjoy architecture.

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The occurrence of dust storms and their sources in the southern and central parts of Iran during the period of 2002 to 2009 was investigated. For this purpose, the meteorological and synoptic data, data from the middle and upper atmosphere, and wind flow tracking model were used. Dust storms and NDDI were traced using satellite imagery from Fasa, Shiraz, and Bushehr stations. Analysis of the ground data indicated that one of the strongest storms occurred in 2008 and the most intense dusty day was June 10, 2008. The results of tracing wind flow in the fiercest dusty day using HYSPLIT model indicated that dust masses originated from the western parts of Iraq and eastern Syria and transported by the northwest winds in the region. The results indicated that west winds are caused by the presence of the low pressure air mass in the center of Iran and the high pressure air mass in the northeast of Africa. It is concluded that terrestrial measurements, weather patterns, tracing wind flow model and NDDI index have suitable capability to detect the movement of dust storms.

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The literature of each region reflects the customs and beliefs of that particular region and is the distinguishing feature of races from each other. Folklore of each nation is a reflection of its cultural and racial beliefs and through investigating them, one can find out about traditions and cultures of various races that have entered and remained in that area through immigration, war and business. Through separating these cultural and racial beliefs, one can also reevaluate that race from a cultural perspective. Music of every nation, like other arts, springs out of feelings, experiences and the surroundings of that nation and it has contained and built a big and important part of every society throughout the history of mankind. Human beings mix their internal feelings with the knowledge they have acquired through trial and error and creates a fruit called art and civilization. One of the objective manifestation of Kurdish culture is folk songs. Songs have not been and are not simply tools to pass life, but are useful tools for transferring feelings, happiness and sorrow. One of the ever-lasting songs among Kurds, and in particular Kurds speaking the southern dialect, is Houreh which is prevalent in areas such as Ilam, Kermanshah, Lorestan, and Kurdistan. Houreh is a long continuous song and its singer has a lot of poems and verses in mind and sings them one after the other. Sometimes the songs are composed by the singer and sometimes taken from other poets.
Houreh is mostly prevalent in southern Kurdish areas especially with Laks, and in areas of Guran, Sanjabi, and Kalhor. Seyyed Gholi Keshavarz, Ali Rostami known as Ali Khan, Farman Rostami, Ali Karami Nezhad known as Haji Touti, Bahram Beig Valad Beigi, Nejat, Ebrahim Hosseini, Ilkhan Arkavazi, Awl Aziz, Yasemi, Karim Sadehi, and Abd Al-Samad Abdi Pour are famous Houreh singers of Ilam, Kermanshah and Kurdistan provinces. But, the deceased Ali Nazar is most well-known of all.
Houreh expresses contents such as death, describing nature, sorrow, hardship, happiness, and unhappiness in the form of songs. However, the most frequent theme of Houreh has been happiness and love. Seyyed Gholi Keshavarz is one the most famous contemporary Houreh composers who lives in Lalehvand Mahidasht (in Kermanshah) and many of his Houreh are song by lovers of traditional Kurdish songs. He pays special attention to describing the beloved in his Hourehs and using this form of songs, he expresses the hardships of love and betrayal on behalf of the beloved, or the pains one endures for love. Another part of his songs are composed in the form of Ekhvaniat and also Payeh Moori describing the beauty of nature or death.

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Ecolodge need policy to guide and determine short-term and long-term decisions among different options.Policymaking in Ecolodge is a collection of rules, regulations, instructions and strategies that provides a framework in which the governmental and local decisions directly affect the sustainable development of Ecolodge. In this research, we aim to identify spatial policy indicators in Ecolodge and figure out their importance in the Hawraman region. Therefore, the question is which of the spatial policy elements of Ecolodge have the most importance in this case study? The research method is practical by purpose and descriptive-analytical by type. At first, it described and interpreted the existing relationships between the research variables (statistical system and information, ruling bureaucracy, ruling values, structure of power, implementation and monitoring of policies). Research statistical society includes the ecotourism managers of the target villages of Hawraman region, General Department of Cultural Heritage experts, Tourism and Handicrafts Department, as well as tourism specialists including faculty members and related experts. This research results shows that according to Tukey's test, the policy implementation and monitoring indicator with an average of 3.673 (combination of opinions) has the highest importance in the spatial policy of Ecolodge in the Hawraman region.Thus, based on the results of the hypothesis test, it can be accepted that there is a significant difference between the spatial policy elements of the Ecolodge in the Hawraman region, and in this regard, the policy implementation and monitoring indicator is the most important among the five.
 

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The issue of job absenteeism as a critical factor for organizations brings significant financial losses. The absence is one of the all-consuming challenging and time consuming problems organizations could face and in economic point of view, one of the factors increasing the cost of production. These issues are more common in estate owned organizations. Given the need to identify causes of absenteeism and staff desertion, this study, with scientific and realistic analysis on the causes of absenteeism, try to find solutions and ways to overcome these issues. Reviewing experiences of some management scientists and sociologists, Q-methodology used to identify important factors causing employees absenteeism which those factors were finalizing using factor analysis. Statistical population was staff of the case study where three of the specialists interviewed, 40 Q identified and prioritized by the participants. 5 factors were identified, which collectively illustrate the importance of performance-based pay, developing systematic indicators to evaluate performance, enriching jobs by redefining the identity, awareness and transparency in the formulation and implementation of organizational structure.

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Introduction
After the three eras of agriculture, industry and information, the sky of the virtual age over the heads of humans has covered the vast umbrella of human geography in every corner of the boundless earth. The fourth technological revolution is a reality that has and will affect all city and urban structures in the world. In this regard, "crypto cities" and "metaverse cities" are two technological phenomena affected by this revolution and based on technologies such as blockchain, cryptocurrency, etc., which have attracted attention in the advanced world, and even in this direction, measures have been initiated. According to the twenty-year vision of Iran's development, which aims to gain the first place in the region for the country, and in line with the country's development laws, which includes the urban economy and the development of technologies required for urban management along with the knowledge economy this axis is emphasized in Iran. Also, based on the horizon of the document of the Iranian Islamic model of progress as an upstream document, in 1450 AH, Iran should be among the five leading countries in the world in the production of thought and technology, and from a knowledge-based and self-based economy based on rationality, justice and Islamic spirituality and one of the ten largest economic powers in the world; Therefore, logically- by designing such a vision- one cannot ignore the phenomenon of the fourth technological wave and its manifestations, i.e. crypto cities and metaverse cities that are rising. But the problem of this research is that until now, due to the importance of metaverse cities in the future of the country, this phenomenon has not been addressed from different points of views. Therefore, it is clear that there is a significant gap in the research done inside the country. This research, due to the importance of the topic, aimed to answer the following questions:
 what are the consequences of moving towards the metaverse cities for Iran?
 what issues should be taken into consideration in the planning of the future metaverse cities of Iran?
 what are the causal conditions that justify the establishment of Metaverse cities in Iran?
 what strategies and solutions (measures) are necessary for the purpose of guiding and measures for the future metaverse cities of the country?
Also, the document of the Iranian Islamic model of progress is considered as an upstream document; Therefore, as a rule and logically, it has a very high influence in the future metaverse cities of the country. Therefore, other question is that:
 what points can be obtained from the document of the Iranian Islamic model of progress in relation to the measures for the proper management of the future metaverse cities of the country?
Methology
This article is fundamental. It is question-oriented and it is done in document and library method. Also, it is qualitative research, which is exploratory through the qualitative content analysis method, and it is done in the framework of the grounded theory method. The statistical sample of the research includes a range of documents and scientific studies related to the central topic of the research which used the available sampling method.
Research findings
Based on research findings, metaverse cities will have consequences for the country. In this connection, in the case of proper management and appropriate measures, this wave will have more positive consequences than negative consequences. Also, in terms of intervening conditions, culture and cultural policies, especially in the field of virtual space, the culture of Technology acceptance, the dominant philosophy of Technology policy (technorealism, neoladism, and techno-utopianism), the state of establishment of the fourth technological wave paradigm, and the state of establishment of the participation-oriented paradigm, sustainable development, knowledge-based development and strengthening the city's integrity are considered non-technical intervention conditions. In relation to technical categories, the state of information and communication Technology components including infrastructure (computers, transmission networks, internet, etc.), application software, manpower and Technology management in the framework of indicators such as processing, bandwidth, user experience, connectivity, e-commerce, programming languages, network and computer architecture and storage resources, based on research findings, as intervening conditions in the establishment of metaverse cities in Iran are discussed. Background conditions are special conditions that affect strategies and solutions. These are a combination of technical conditions, jurisprudential bases, legal bases and monetary policies. In connection with the technical conditions, we can refer to the 8 enablers of metaverse Technology including: network, edge/cloud, artificial intelligence, computer vision, blockchain, internet of things and robotics, user interaction and augmented reality and 6 pillars of the metaverse ecosystem including: avatar, content production , virtual economy, social acceptance, security and privacy, and trust and responsibility centered on the 4 basic components of blockchain metaverse cities, virtual currency, exchangeable token and social interactions (social networks). Besides these conditions, jurisprudential bases, legal bases and monetary and currency policies of the country - based on research findings - are the background conditions that should be considered in strategies and solutions. Causal conditions also specify the categories that are related to the conditions for creating the central category. Based on research findings, integration in policy making, legislation, planning, implementation and monitoring, in other words integrated management and measures are the most important causal conditions in this field. According to the contextual, intervening categories, as well as the consequences and disadvantages of metaverse cities (in case of inappropriate management and measures) were raised. Strategies and solutions in line with appropriate management and measures of metaverse cities can be divided into two categories: technical and non-technical.
Conclusions
Based on the results of the research, considering the conditions mentioned in the research, including integration in policy making, legislation, planning, implementation and monitoring, it is possible to achieve metaverse cities in the country with social, economic, cultural and environmental low consequences. Also, in the Iranian Islamic Model of Progress document, three paragraphs in the measures section are dedicated to virtual space; In total, the following points, based on the results of the research, were used in order to take advantage of the measures in order to achieve the worthy leadership of the country's future in addition to the above-mentioned points:
 1) accepted metaverse city; It is a healthy, useful, safe and ethical space based on Iranian Islamic values, culture and identity, and is a fair space in which justice has been observed in exploiting the virtual opportunity;
2) The future metaverse cities of the country should be in line with promoting local knowledge, developing the country, providing security and increasing the resilience of infrastructure; this matter will be done with public participation and international cooperation;
3) Metaverse city can be a platform for promoting creative and cultural industries in accordance with the national and local capabilities of Iran in which norming, promotion and expansion of Islamic culture and values ​​of Iran has been done considering the demand of the regional and global audience.

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 Ooencyrtus fecundus Ferriere and Voegele (Hymenoptera: Encyrtidae) is a gregarious egg parasitoid of sunn pest Eurygaster integriceps Puton. Superparasitism enables a female to produce multiple progeny per host and thus reduces the time spent searching for hosts, but results in progressively smaller progeny as more individuals compete for limited resources within hosts. In this study, we tested whether gregarious development would affect the functional response of O. fecundus reared under laboratory condition (26 ± 2 ºC, 50 ± 10% RH and 16: 8 L: D h). Various host densities (1, 2, 4, 8, 16 and 32 eggs) were offered to females that had developed either as single, or as twins, triplets or quadruplets within host eggs. To resolve the functional responses of these females, a total exposure time of five hours was chosen, based on direct observations of handling time and the maximum daily number of host attacks/female. Functional response of the parasitoid was type III in singleton and twin parents, and type II in triplet and quadruplet ones. However, host mortality rate was 100% in host densities ≤ 8, suggesting density independence at lower densities as expected from a type I functional response. In such circumstances, handling time is expected to be zero, but was observed to be 11.4 to 14.3 minutes in different treatments. These results suggest that when enough time was available to find and handle all hosts, a type II functional response resembles Type I one. Searching efficiency increased and handling time decreased with body size of the parasitoid of four categories.
 

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In the present study, the effect of phytohormone gibberellin on some physiological parameters of Tetraselmis suecica microalgae was investigated. Algae culture was performed under standard conditions with Gillard culture medium, temperature 25 ± 2 C°, light intensity 16: 8 (light/dark), salinity 25 ± 2 mg / l, and 24-hour aeration for ten days. Concentrations of 10, 20, 40, and 60 mg / l were added to the algae culture medium. Growth factors, pigments, photosynthetic factors, and biochemical composition were measured in the log phase. Based on results,  the highest rate of cell growth was observed in the treatment of 60 mg / l, although in other treatments there was a significant difference with the control (P <0.05). The highest amount of protein and carbohydrates was observed in the treatment of 60 mg / l (P <0.05). ). Total lipid content increased from 15.23 in control to 18.53 in 60 mg / l (P <0.05). Antioxidant potential, pigments, photosynthetic factors, and dry weight also showed a significant difference in the concentration of 60 mg / l compared to the control (P <0.05). The highest amount of chlorophyll a and chlorophyll b was observed at concentrations of 60 mg / l (P <0.05). Based on the results, gibberellin has a high potential for cell division, final density, antioxidant potential, cell size, and biochemical composition of Tetraselmis suecica. Also, Tetraselmis suecica can be a good candidate for marine aquatic larvae, drugs, antioxidants, and a rich source of compounds in biofuels.

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Most experts see human resources as the most important and most valuable asset of any company. As a result, a method that would help create an accurate plan for this asset is highly valued and functional. This study aimed to improve challenges and gaps in human resource planning using a Markov chain model.  There are two fundamental problems with Markov chain model in predicting human resources, which are respectively failing to account for future uncertainties and generalization of the data from one basic period in the prediction of the future needs. These problems are embedded in the Markov chain model. In order to deal with these problems, a fuzzy Markov chain model (periodic or temporal) was proposed in this study. This study presented a fuzzy Markov model for predicting human resources. This was a descriptive, sectional study and the data were analyzed through a quantitative method. The application of the fuzzy Markov model in human resource planning was presented in five consecutive steps. The application of the traditional Markov model in human resource planning was also examined for comparison with the proposed model. The study findings suggest that the prediction of human resources using the periodic fuzzy Markov model offers a powerful tool that bridges the gaps in the traditional Markov planning. It considers three states, namely optimistic, positivist, and pessimistic, for determining human resources surplus and shortage, and does not generalize data pertaining to one period to future periods.

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Aim: Recognition of habitat status and ecological responses of species to environmental variables are prerequisites for better management and providing the ecological needs of each species. This study assessed the current status and distribution of Viburnum lantana L. and described its ecological characteristics in the lowest limit of its distribution in the northern hemisphere, Arasbaran forests.
Materials and Methods: The presence sites of Viburnum lantana L. (wayfaring trees) were selected based on the field observations and library sources, then to collect data, the 114 circular samples with a radius of 17.84 m were laid systematically and randomly out. Within each sampling area the characteristics of each woody species including species name, diameter at the breast height (DBH) and the height of all wayfaring trees and other species were measured. The relative importance value (RIV) of species across all sample plots was calculated to describe the dominant species composition.
 

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Total-Internal-Reflection Fluorescence Microscopy (TIRFM) is a useful tool to visualize and record the phenomena that happens below 100 nm thickness of the sample surface. This unique property of TIRFM help to perform a "qualitative" study of cytoskeleton near the cell-substrate contact. Here,   distribution of actin filaments at cell-substrate interface was imaged by a TIRFM set up. Then, staining the actins cytoskeleton of the human melanoma cell and implementing the prism-based total-internal-reflection fluorescence microscope.  A method to "quantify" distribution of fluorophores at cell-substrate contact is proposed.