ABSTRACT The attention of contemporary planners to ENVIRONMENTAL factors and increasing awareness and communication of man with his surrounding environment has increased the layers and defining factors of design and planning concepts. In such a way, a common problem with the issue of ENVIRONMENTAL capabilities to respond was put in front of the planners. The collection of ideas presented in this era was in the form of responsive planning, focusing on the maximum use of ENVIRONMENTAL capabilities. The necessity of the emergence of a comprehensive discourse to overcome the plurality of factors, definitions and design methods in the ENVIRONMENTAL fields has been given less attention. Based on this, the current research aims to organize the leading theories in this field in a targeted manner and seeks to improve them based on their synergy. The structural question of this research is the meanings, examples and meaningful contexts of flexibility in various aspects and scales of urban planning. The research method used is qualitative thematic analysis with the help of artificial intelligence in MAXQDA software in a 6-step processing process. The important application of this research is to structure the minds of the planners of this field to reduce the scattered and interdisciplinary problems of the resources. The results of this research revealed dimensions such as identification and recognizability, diversity and changeability, adaptability and expandability, distribution, separation and continuity, organization and compatibility in the field of flexibility and related to the corresponding parts in urban planning   Extended Abstract Introduction Responsiveness-based design and planning emphasizing the maximum use of ENVIRONMENTAL capacities to meet users' needs implicitly cause a targeted improvement of ENVIRONMENTAL quality. As the ENVIRONMENTAL awareness of contemporary man has expanded and the platforms have become more diverse, many challenges are raised in the field of environment-oriented in the field of infrastructure quality and service provision. Urban developments and new developments in cities should be interpreted with integrated conceptualization. The conceptualization of interpretive flexibility in the planning and designing of public spaces in the city is used as an interdisciplinary perspective in urban space design to open and discuss its connection and potential as an approach to strengthening social cohesion and inclusion. The general definition of flexibility is that it can create places with new forms of meaning and be used for different groups to strengthen its coherence and multidisciplinary inclusion in terms of design and planning of space and body. On this basis, the concept of flexibility is proposed as a principle in the context of design and planning due to its wide range of effects on background phenomena. The history of such a role can be seen in the diversity of users' needs. In such a way, it is impossible to express the specific time and area of the need to pay attention to this concept. This is in line with Oldenburg's theory of "social public spaces," in which being in public space, communicating with people and the environment through observing the streets, sidewalks, squares, and parks of the city is a necessary step for people as a part of their social life. The meaningfulness of the design of the artificial environment was considered. In any case, in the contemporary era, on the one hand, at the same time as the quantitative and qualitative increase of human ENVIRONMENTAL awareness, there is no longer any phenomenon in the eyes of contemporary man arising from a unique aspect and range of factors. On the other hand, his life needs in the individual and collective dimensions have seen a high diversity, which has led to the formation of multiple semantic domains of past flexibility. The meaning of flexibility in such an interdisciplinary platform and basic design refers to the concept of understanding and responding quickly and efficiently to ENVIRONMENTAL changes. Such a holistic definition for this broad field of ENVIRONMENTAL design means the implicit acceptance of the role of scale in the meaningful domain of these concepts. On a macro scale, it means making design options to increase the presence, participation, and power of choices of users of the environment in participatory urban planning and design methods, and on a small scale, it means making design options to increase spatial quality and, as a result, the quality of activities. The daily activities of ENVIRONMENTAL users are through selection against the "dominant space." Flexibility at different scales is crucial for dimensional optimization, shaping, and structuring spatial features, leading to improved performance of space components and spaces. The development of the concept of "flexibility" from various studies in metropolitan to micro scales, such as interior architecture, allows it to pass the discourse of responsiveness to provide a broad approach to ENVIRONMENTAL design in which different values, interests, and priorities are prioritized. As a result, the issue of flexibility in ENVIRONMENTAL design has been raised as a multi-dimensional field in the design and planning of the basic environment. The breadth and complexity of this concept have made the researchers of this field deal with it in one or more ways, and it has been avoided to provide a comprehensive framework about the nature and structuring processes. The current research presents a structured view of flexibility in architecture and urban planning with an ENVIRONMENTAL approach.   Methodology The methodology to achieve this goal is to use the macro research method and achieve a comprehensive framework by combining categorized interpretations. In such a way that by sorting and categorizing these concepts and bases in a new way, he has found a new level of theoretical findings, which will be a suitable answer for the gaps in scientific knowledge and scientific methods created in this field. In this context, the research method "thematic analysis" has been used with a qualitative approach and the use of library resources. Also, to overcome the breadth and complexity of these concepts and the multi-layer networking of concepts in this research method, artificial intelligence has been used in MAXQDA research assistance software.   Results and discussion In the meantime, attention should also be paid to the fields of influence and application of the results of this research because designers refer to flexibility as the creator of ENVIRONMENTAL qualities, including dynamism. Also, since flexibility, along with the principles of readability and adaptability, affect the lifestyle and behavioral patterns of the audience of ENVIRONMENTAL design in architecture and urban planning, it will also be effective in dealing with the challenge of complexity in ENVIRONMENTAL design factors. One of the key questions for achieving research goals on this issue is how flexibility in ENVIRONMENTAL design impacts the relationship between flexibility and scale.   Conclusion The most important finding of this research suggests that first, it requires a focus on the conditions under which the processes of perceiving human abilities and discovering the needs of the human audience can manifest. The theoretical framework arises from a comparative approach between design disciplines. These conditions are independent of the final state of the design product, and strengthening the ENVIRONMENTAL capacities will lead to a direction and an area that includes ENVIRONMENTAL flexibility. By responding to new situations, the construction of the space and the body within a space building can be adapted to various configurations. Even though the environment may remain constant, the designed place will continue functioning as a strong living system over time.  It also seems that the nature of issues related to flexibility has complexity. Considering that the quality of flexibility in urban planning and architecture is significant in multilevel and multifaceted scales from micro to macro, it is important to pay attention to the scale of different variables. In order to reduce this problem, the consistency and adjustment of the scale of the variables measured in a specific analysis should be considered in the first step.   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.   Acknowledgments We are grateful to all the scientific.

The dominance of technology over human lifestyle affected the human health and quality of environment. Therefore, mental health problems, stress, and depression are currently considered as the leading causes of somatic disability and premature death. An evolving body of scientific evidence demonstrates solid relations between housing and health. The public health commUNITy is developing, testing, and implementing effective interventions that yield health benefits through improved housing quality. Due to the growth of social and ENVIRONMENTAL challenges, the stress-related diseases are increasing. Stressors that come from poor design of residential environments-crowding, noise, poor indoor air quality and light – can have a negative impact on human mental health. Evidence also increasingly suggests that people with access to quality green space are healthier. Being outside can promote mental well-being, relieve stress, overcome isolation, improve social cohesion and alleviate physical problems. So knowing how environment affects health can help mitigate the impacts of ENVIRONMENTAL stress and improve health. Since healthy environment is defined as one of the factors in human’ s sustainable life and basic needs. Hence, in designing the housing environments, infrastructure planning has a significant role in recreating the ENVIRONMENTAL factors which have impacts on health. The aim of this study is to be prepared based on assessment of ENVIRONMENTAL factors effective on mental health and its results can be regarded as a solution for designing the healthy housing environments. GOLD BERG GHQ-12 questionnaire was used to assess mental health of the subjects in the residential complex. The instruments needed for investigation of the environment quality include three components: physical, social and natural environments. All the participants lived in two residential complexes which are called “ 600-UNIT” and “ 512-UNIT” in Mashhad. A 351-subject sample was surveyed. Descriptive and inferential statistical methods were used to analyze the data, and SPSS16 and LISREL software were used to carry out the calculations and process the information. Findings of this study show that there is a relationship between qualities of human’ s living environment (including physical, social and aspects of the environment) and mental health. Therefore, the quality of each residential complex can be measured by the variables related to mental health of the residents. Results of the study shows that, among all factors affecting the mental health, the physical component of the environment has the most dissatisfaction and the most negative impact on the health of the residence; and after that, social and ENVIRONMENTAL factors have the most impact on each residents’ health, respectively, in both residential complexes. Therefore, by improving the physical condition of housing environment, it can be used to improve the health of people living in residential complexes. In this regard, most efforts should be in order to maximize the amount of light (to control the height of the buildings), increasing green space and the right to organize, assign spaces for walking and observing the hierarchy summarize from the public to private. We can expect in such an environment, social relationships, and improved the quality of their environment to enhance biological inhabitants.

In this study, weather conditions such as air humidity, temperature air, and wind speed were investigated in relation to wind turbine efficiency with the approach of an exergy study. In this study, the wind speed has been investigated in two different climatic regions of Iran with an approximate distance of 1200 km, in the names of Ardabil and Marvast. The amount of wind density of Ardabil is equal to 66 (kW/m2) and Marvast is equal to 123 (kW/m2). Power production using a 10 (Kw) wind turbine in the Ardabil region is 2.3 (MWh) and in the Marvast region is 3.2 (MWh) per year. The highest wind turbine exergy efficiency is 0.48 in the Ardabil region, and the highest exergy efficiency in the Marvast region is 0.18. The amount of reduction of CO2 gas production, using wind turbines in comparison to gas and diesel power plants in Ardabil, are 1.1 and 2.1 tons and in Marvast are 1.5 and 2.9 tons per year. This reduction in CO2 greenhouse gas per year is equal to using a forest region of 1000 (m2) to 3000 (m2). The use of wind turbines reduces the fuel consumption of diesel power plants in the Ardabil region for the amount of 797.4 liters and in the Marvast region for the amount of 1244 liters of diesel per year. According to this review, it can be concluded that in addition to wind speed, air humidity plays a significant role in the selection, installation, and commissioning of wind turbines in the region. According to this survey, it can be seen that in the Ardabil region, the wind speed of the wind turbine has a higher exergy efficiency than in the Marvast region, and it can be concluded that the wind turbine has performed better in the Ardabil region.

Statement of Problem: Dental UNIT Water Systems (DUWS) have been demonstrated to be contaminated with biofilms. This biofilm could be a site for growth and colonization of pathologic microorganisms. Purpose: The aim of this research was to measure the Total Cultivable Flora (TCF) in DUWS of Khorasgan dental school and the effect of stabilized chlorine dioxide on its reduction.Materials and Method: In this research, 60 samples of water from high speed turbines, air-water syringes, cavitrons and wash basins were collected. The samples were cultured in agar nutrition media and incubated for 5 days. After the incubation period, colonial counting was done by HPC method. In the next stage, stabilized chlorine dioxide was added in a container for each UNIT and the samples were taken from air-water syringes, cavitrons and turbine outlets .As for the first stage, after 5 days of culture and incubation, the samples were observed under microscope for counting the bacterial colonies. Kruskal-Walis and Mann-Whitney tests were used for statistical analysis.Results: A high level of bacterial contamination (more than 200 CFU) was observed in high speed turbines, air-water syringes, cavitrons and wash basins. The highest colonial count was observed from cavitron and the lowest from washbasin outlets but the difference was not statistically significant .After using chlorine dioxide, the amount of bacterial colonies was significantly reduced (p <0.05). Conclusion: The amount of bacterial contamination in DUWS of Khorasgan dental school was higher than the accepted level .These bacteria were mainly opportunistic .The addition of an anti-bacterial agent in the DUWS will significantly reduce the bacterial count to an acceptable level.

Risk assessment approach is one of the essential bases in establishing and using management systems in different organizations. Establishing a kind of complex managerial system in sanitation, security and ENVIRONMENTAL organizations would help them to be able to have processes to prohibit errors. ARYASASOL Petrochemistry is the biggest UNIT producing Olphyn gas in Iran which is placed in Pars economic area. The present study is conducted in ASALLOYEH, the production UNIT of heavy and moderate petrochemistry complex, ARYASASOL, to indentify its ENVIRONMENTAL aspects and introducing practical alternatives to decrease or even to omitt the negative ENVIRONMENTAL effects using the analysis methods in breaking states besides considering their effects on environment. This method is a qualitative one which is used as the best possible method in developing the process. Its objective is to recognize and to classify the ENVIRONMENTAL aspects beforehand which leads to appropriate results during the life circle. Therefore these aspects were first assessed and assigned the prior risk number and the risk degree also was calculated through excess distribution method. Doing the statistical calculations it was shown that some ENVIRONMENTAL aspects holding the risk priority number more than 19.5 are riskier than others. The obtained results showed that 24.8% of the ENVIRONMENTAL aspects were at low risk, 21.46% stand in average and 14.12% were high meanwhile 39.54% were considered beyond high levels that for the last two we should apply reforming and risk managerial processes.