Nowadays, the continuous economic growth is one of the basic requirements in the country' s current conditions. The effective and calculated increase in research and Development costs, and efficient management could be a solution to the economic Development of the country. On the other hand, poor management is an obstacle that impedes R& D in organizations as well. In this paper, by reviewing the present literature in the field of R& D, and using the context analysis method and Fuzzy Delphi technique, the existing Challenges and success strategies are identified; and finally 30 main Challenges and 28 strategies for successful R& D at Iran Telecommunication Research Center are obtained. At the end, the Challenges and solutions are described and by using the method of factor analysis and clustering them in three groups, including factors related to researchers, antra- and extra organizational factors, it is tried to analyze the status of the research and Development at Iran Telecommunication Research Center.

ABSTRACT With the expansion of inefficient tissues, "Urban regeneration" has been objectified as a solution for developing cities in different physical, social and economic dimensions. Despite the Development of the guidelines for urban regeneration projects, these projects in Iran still have Challenges in the stage of realization and implementation. This article aims to identify the "Challenges and causes of non-realization of urban regeneration projects in Iran" and analyse the research conducted in this field with a qualitative approach. For this purpose, a meta-analysis of 23 articles in the field of problems of urban regeneration projects in Iran was carried out. The Challenges raised in the AtlasTI software were extracted with the help of open and axial coding. In the following, 100 codes were determined in the form of 10 groups or general categories. In the end, the obstacles to the realization of urban regeneration projects in Iran were given. According to the obtained results, the weak presence of non-governmental organizations, the problems of preparing plans, institutional and management problems, and the weakness of participation are the four most important and frequent Challenges in the research related to the realization of urban regeneration projects in Iran Extended Abstract Introduction The trend of urban population growth and the expansion of inefficient urban fabrics along with the increasing immigrant population to the cities makes the planners think of filling the existing urban fabrics with excessive density and land use change, instead of the city horizontal Development with regard to the urban sustainable Development prism. Poor housing, low per capita services, lack of necessary infrastructure, low quality of life, economic stagnation and functional inefficiency, unorganized physical-spatial structure, high vulnerability to earthquakes, loss of social status, and various social problems exemplify the typical Challenges of such deteriorated areas. Deterioration of the urban fabric has prompted the emergence of various urban Development policies among which regeneration as an overarching approach characterized by its economic, social, environmental, physical, ecological dimensions and components including quality of life, justice, revitalization and participation. This concept, as an urban Development policy, has been defined and applied in the vulnerable and deteriorated areas of cities in recent years. Started from physical reDevelopment in the Second World War and passing through policies concentrated on social and economic welfare, urban regeneration policies moved towards the participation of local residents and the creation of sustainable places in recent decades. However, taking into consideration the manifestation Challenges of urban Development plans, in the existing literature, urban regeneration Challenges have been less comprehensively investigated. This paper aims to identify the "Challenges and causes of lack of urban regeneration plans manifestation in Iran" based on the review and analysis of the research conducted in this field with a qualitative approach in response to this question: "What are the Challenges and obstacles to the manifestation of urban regeneration projects in Iran?”   Methodology This research aims to identify "Challenges and obstacles to the manifestation of urban regeneration projects in Iran" through a meta-analysis of the research conducted in this field. Conducting a systematic search in Magiran, comprehensive humanities portal, and Google Scholar databases using the Boolean logic search used the keyword (Challenges) AND key phrases (‘manifestation of plans’ AND ‘urban regeneration in Iran’) resulted in more than 70 Persian papers, 2 English papers, and 2 English theses. The reviewed studies included research and review papers, case study research, and the special issue of urban regeneration policy of Haft Shahr Journal. The geographical scope of the investigated studies covers the historical contexts of Iran, and metropolises such as Tehran, Tabriz, Shiraz, and Isfahan. Reviewing the abstracts, 23 studies were selected among which the research focusing on the different types of regeneration, and evaluation of urban regeneration indicators were excluded from the research process. To conduct meta-analysis after a comprehensive review of each study, open and focused coding of Challenges was done through Atlas.ti software (version 8), and the obstacles to the manifestation of the plans were extracted. Coding process continued until the saturation was reached. Finally, the 115 codes obtained was reduced to 100 through integrating similar codes. Then, all the codes were categorized into 10 categories, and a comprehensive model of "Challenges of manifestation of urban regeneration projects in Iran" was presented.   Results and discussion Based on the conducted review, the recognized problems with emphasis on the different aspects of urban regeneration projects are: 1) Weak presence of non-governmental organizations (18 codes); 2) Problems of preparing plans (17 codes); 3) Institutional and managerial problems (14 codes); 4) Weakness of participation (13 codes); 5) Duration and financial problems of urban regeneration plans (10 codes); 6) Problems of urban regeneration plans process (8 codes); 7) loss of identity of fabrics in the preparation of the plan (6 codes); 8) Lack of context-oriented approach (7 codes); 9) inefficient evaluation of plans (4 codes); 10) lack of social and specialized training for citizens and officials (3 codes). The lack of endogenous theory and insufficient knowledge of the environment and residents obstacle the manifestation of urban regeneration plans. Despite pretending the use of non-governmental organizations, the relevant law weaknesses, and the lack of belief in the effectiveness of it has led to disregard of the participation of non-governmental organizations in practice in the process of preparing and implementing Development plans resulting in an inadequate context for manifestation of urban regeneration plans. In addition, the government supervision on NGO’s in the way of achieving independence has also caused limitations for their interplay. In terms of the issues in the preparation of plans, more emphasis on the physical and economic dimensions and the purely physical view, and the lack of attention to the social and cultural consequences, along with the loss of the community identity, are the factors of the failure of the plans to achieve the expected results. The lack of coordination between programs and multiple decision-makers led to the institutional confrontation instead of interaction. In this regard, the necessity of an integrated and comprehensive approach to urban regeneration has been acknowledged in the reviewed studies. NGO’s can play an effective role in communicating with citizens, educating citizens and informing them. It is also necessary to have the participation of the private sector and other organizations involved in the field of urban Development in addition to public participation in all steps of preparation, implementation and occupation of projects and Development plans. In the absence of a context-oriented approach in the preparation and implementation of urban regeneration plans in Iran with blind imitation of western models and the existence of limited urban infrastructure, following consequences are inevitable: uncertainty in terms of time, cost and site preparation before the implementation of the plan; lack of definition of urban regeneration plans in the different scales, neighborhood, region and city; and the uncertainty of the relationship between these plans and other urban Development plans. As such in the current inadequate conditions driving the process of preparing plans, the possibility of implementing new policies and plans, is low and the implemented plans like many other urban Development plans in Iran, are inefficient in the absence of the post occupancy evaluation.   Conclusion Based on the results, four priority Challenges in the manifestation of urban regeneration plans in Iran include; the weak presence of non-governmental organizations, the problems of preparing plans, institutional and managerial issues, and the weakness of participation. "The weak presence of non-governmental organizations" has been mentioned as the first challenge in most reviewed studies (Ahmadifar et al., 2014). Regarding the "participation of citizens" even though in the set of laws and regulations of sustainable urban regeneration, promotion of citizenship culture, participation, and cooperation of local institutions are highlighted, the residents are not welcomed in practice. On the other hand, the lack of people's participation in the preparation and implementation of plans has made any urban regeneration actions fail or achieve to its partial goals. In this regard, the results of the previous comparative comparisons have shown that the lack of laws and regulations supporting participation in various fields is of the key factors (Nourian and Ariana, 2011, Shafie Dastjerdi and Sadeghi, 2016). The problems of preparing plans, institutional and managerial issues, ranked as the third and fourth issues in this study, have been emphasized in previous studies as well (Kalantari Khalil Abad et al., Pakro and Sattarzadeh, 2014, Izadi et al., 2019). Therefore, prioritizing the Challenges raised by experts and determining operational strategies to solve them are issues that can be addressed in future studies.   Keywords Urban regeneration plans, manifestation, meta-analysis   Funding There is no funding support.   Authors’ Contribution All of the authors approved the content of the manuscript and agreed on all aspects of the work.   Conflict of Interest Authors declared no conflict of interest.

Business Development Services Centers are one of the Centers that provide valuable services for the growth of small and medium-sized businesses. These Centers, based on growth theory, seek to grow and improve performance, like any other organization. Therefore, first, the Challenges and problems of these Centers should be identified and then addressed in order to achieve effective performance. In this research, it is attempted to analyze the Challenges of the business Development services Centers in the organizational inputs with a semi-structured, in-depth interview, using the Grounded Theory approach. The statistical population of the study consisted of experts in the business Development service Centers in the country, who were interviewed by purposeful sampling. Data analysis was done by coding and categorization. The results of the research showed that the most important Challenges faced by business Development Service Centers are the "provision of Unprofessional services", "the lack of competent counselors", "the lack of a systematic Identification of consultants », « inability to work with government agencies », « Lack of access to business information »and« lack of confidence in the ability of the Centers ».

The purpose of this study is to identify and model the Challenges of effective use of the assessment Center with the Development approach in Tehran Oil Refining Company in the form of a qualitative research method. This research is of applied type. Semi-structured interviews have been used as a data collection tool to identify the Challenges. For this purpose, 10 trustees and members of the A&DC committee who were selected by purposive sampling were interviewed. Content analysis method was used to data analysis, interactive management (IM) and ISM software were used to determine the importance and model the findings. Findings showed that Tehran Oil Refining faces 15 Challenges for the effective use of the Development Center, lack of organizational maturity, managerial changes, lack of legitimacy and transparency in executive guidelines and deficiency in competency model are the most causal Challenges.

Purpose: The purpose of this applied research is to study the effectiveness of gamification on corporate training.  Methodology: A gamified course was designed and implemented to train the location of Fire Hosing Cabinet for 24 employees of a firefighting maintenance company in Iran Mall shopping Center in Tehran. Using a quantitative quasi-experimental research plan (post-test only control group design) the participants of the study were randomly assigned to treatment (12) and control (12) groups and trained for a week.  Conclusion: The descriptive and interpretive result of the posttest analyses indicated the effectiveness of gamification of the training performed for the employees of the firefighting maintenance company in Iran Mall shopping Center in Tehran. Moreover, the descriptive result of Gamification Acceptance Questionnaire answered by the members of the experimental group after gamified training indicated that all the participants in the experimental group were satisfied with the gamified training course.

Mediatheque is an inclusive adaptation of library in which public could exchange information in practical way by applying contemporary technology. It is exerting a new method of bilateral exchange information between clients and sources through various media, which not only serve a faster data transmission than books and libraries but also are more efficient than the other services. This comprehensive library, which is Centers of activities in different fields especially in arts and films, is a constant element in developed countries. By designing such an original scientific infrastructure, people can have easy access to information and freely exchange of data. This criterion can be one of the most elemental reasons that developed countries are commonly porn to use in urban areas. Investigations on these organized places for cultural activities that are accompanied by comprehensive planning indicated that Mediatheque can increase the knowledge of the public in an effective way. Therefore, for upgrading the cultural and scientific infrastructure in other countries such as Iran, having mediatheques is vital for almost every city. This paper aims to investigate the necessity of creating mediatheques, especially in Iran, and compare some examples of existing mediatheques in international scene, in which it can be applied as an example that would be according to the rich Iranian music culture. Moreover, steps of creating a musictheque will be introduced which should be a symbol of traditional and native music of Iran.

Introduction: Information therapy is a simple solution to facilitate patients' access to health information, which can contribute to patient self-care. Considering the importance of treatment and health information, and engagement of people with different specialties in the process of information therapy, this research was conducted to identify the opportunities and Challenges of establishing an information therapy Center. Methods: The present study was an applied-qualitative research. The study population included patients, medical librarians, physicians, health care providers, and psychologists with experience in information therapy and health information prescription. A purposive sampling along with snowball sampling were perfomed. The data were collected via a semi-structured interview. The data were then analyzed by using MAQDA20 software. Results: By analysing the interviews, we were able to identify a main class entitled "Benefits of Information Therapy" including 4 subclasses of “, patients and families”, , “, medical staff”, , “, health system”, , and “, medical librarians”,under the main themes of "Opportunities". Under the and"Challenges", four subclasses of “, barriers to information therapy”, , “, financial issues”, , “, implementation”, , and “, execution”,were also identified. Conclusion: Despite the benefits of establishing an information therapy Center for patients and their families, treatment staff, psychologists and medical librarians, there are some obstacles posed by these groups and the healthcare system, which require further consideration. Careful investigation and finding solutions to remove the obstacles as well as creating an approprite platform to adopt the Center in the society and health sector. In order to establish this Center, it is necessary to consider inter-group and inter-organizational cooperation with detailed planning, as well.

In this paper, a new high step-up current-fed LLC resonant DC-DC converter with a Center-tapped transformer is proposed. By selecting the switching frequency to be lower than, but near to, the series resonant frequency of the LLC resonant tank, soft-switching operation of all semiconductors, i.e., zero voltage switching (ZVS) turn-on of power MOSFETs and zero current switching (ZCS) turn-off of diodes is achieved. This leads to lower electromagnetic interference (EMI) and lower switching losses and improves the converter efficiency. An interleaved structure is used at the primary side. Thus, input current ripple is smaller, and its frequency is twice the switching frequency. Consequently, a smaller input filter is necessary in practice. The converter with 1.2 kW output power and 760 V regulated output voltage with 80-200 V input voltage variations is simulated. The output voltage is regulated by using asymmetric pulse width modulation (APWM) at 200 kHz switching frequency. Finally, a 700-W prototype has been implemented and experimental results are also presented to verify the simulation results.