رسول قربانی

In recent decades, one of the main challenges in studies related to regional development is the search for understanding the economic and cultural differences between the national and regional levels in order to predict the transition that will lead to regional development. One of the systems that plays an important role in regional development is the regional innovation system. To this end, the aim of the present study is to identify the key drivers of regional innovation in the Tabriz metropolis. In this regard, the study is applied in terms of purpose and descriptive-analytical in nature. Two library and field methods were used to collect the required information. The statistical population of the study includes 32 qualified individuals in the industry, university, and government sectors who were selected as purposive sampling. The data were also collected from the Miqmac software for analysis. The research findings show that out of a total of 71 influential factors, 13 factors include an appropriate productivity culture, laws and regulations, the existence of a teamwork culture between activists and established industry units, information and communication technology infrastructure, sufficient funding for university research infrastructure, higher education, patent programs, higher education policy, performance evaluation and payment system, financial support, a special and flexible tax system for research and development, and research centers.

In large and inaccessible natural areas, ground surveys and close assessment of landscape health becomes difficult or even impossible. In these circumstances, remote sensing data provide an inexpensive solution. The first step in assessing landscape health through remote sensing data is selection of indicators that can be derived from this imagery. Landscape health can be directly assessed using Fourier transform on satellite imagery or indirectly through image classification and then measurement of relevant landscape metrics on the classified maps. In this study, in addition to the discrete landscape metrics of land use, the Fourier transform method through frequency assessment of the images were used to assess the health status of the landscape in part of the Golestan Province. Through multi-temporal analysis, images of different times were also compared to study the change in the health status of the landscape. The results of discrete metrics and continuous Fourier approaches were similar. Fragmentation, heterogeneity and complexity at the landscape level as well as vegetation level increased during the period 1984 to 2016, leading to lower landscape integrity and connectivity. The health of the landscape appears to have declined due to increased non-uniformity of landuse types. The continuous approach in this study, namely the Fourier analysis also confirmed the changes and the decreasing trends in landscape health for the studied time period. Therefore, we conclude that both discrete and continuous Fourier methods can be used in landscape health assessment of the study area.

This study was conducted to study the catch composition of Largehead hairtail (Trichiurus lepturus) hand and line and some biological characters of T. lepturus in northern waters of Oman Sea (Remin fishing port).  Sampling was done by hand and line used in the region by four motor boats each of which included 4 fishermen from February to May 2022. 6955 fish were caught which include T. lepturus, Sphyraena jello, Carangoides chrysophrys, Terapon jarbua, Strongylura strongylura and Otolithes ruber. Among them T. lepturus with 97.66% had the highest percentage and O. ruber with 0.01% had the lowest percentage of catch. The maximum and minimum total length of T. lepturus caught were 128 cm and 42 cm, respectively. The optimal size of T. lepturus was 85.63 cm and the infinite length was estimated at 131.13 cm. Also, the length of sexual maturity was calculated as 66.57 cm. The results showed 84.36% of T. lepturus were mature and only 15.64% had a length less than the length of the first sexual maturity

The purpose of this research is to estimate the amount of nitrogen output resulting from raising juvenile Huso huso (Linnaeus, 1758) in the proposed pens located on the southeast coast of the Caspian Sea using the nitrogen dynamics model. In this research, nitrogen excretion was measured by storing 30,000 juvenile Huso huso in 750 square cages, the end of which was connected to the graft (pen) at a depth of 2 meters during 7 months of rearing (June to December) with an initial weight of about 30 grams and The final weight was about 750 grams at the end of the period and the average food conversion ratio was 1.5 and the percentage of survival was 82%, and the production of about 18 tons of fish was estimated. The results showed that at the end of the breeding period, it can be expected that the total amount of nitrogen and phosphorus (inorganic) entering the sea will be 0.919 and 0.123 tons, respectively. According to the dynamic model, the nitrogen discharged into the sea at 20 meters from the cage is estimated to be 0.13 mg/liter and 0.01 mg/liter at 1000 meters, which indicates compliance with the minimum radius of 100 meters from each cage to the next cage. Is.

The Persian Gulf and the Oman Sea contain a variety of aquatic species. Among which, scomberoides commersonnianus fishes are important that has increased its catch in recent years. In this research, the demographic characteristics of Talang queenfish fish were estimated by collecting data from April 2022 to March 2023 from 4 catchment areas including Pezam, Kanarak, Breis and Pasbandar on the coasts of Sistan and Baluchistan province. In this study, more than 1900 fish at the research stations were biometric and the growth parameters were infinite length of L∞ = 137 cm, growth factor K = 0.54 (yr-1), natural mortality M= 0.52(yr-1), mortality and mortality (yr-1), F = 2.21, total mortality (yr-1), Z = 2.73 and exploitation coefficient (yr-1), E = 0.8, and the time zero was -0.19. According to the calculations, the average initial biomass was obtained 98 (56-173) thousand tons, the average current biomass 44(20-58) thousand, the average maximum sustainable yield (MSY) around 14 (8-22) thousand tons. The ratio of current fishing mortality to maximum sustainable yield (F/FMSY) was showed greater than one (1.33) and the ratio of current biomass to maximum sustainable yield (B/BMSY) is less than one (0.9). This study shows that the annual harvest of Talang queenfish stock has reached its maximum and any increase in fishing effort will affect this fish stock and will reduce the amount of exploitation in the long run.

Abstracteffluent and pollution is one of the most important problems related to the development of the aquaculture industry, especially in large aquaculture complexes. The purpose of this research was to investigate the quality of wastewater from Vanamei shrimp farming complex (830 ha) entering Gamishan wetland. sampling carried out from 12 stations along the sea entrance route to Vanamei shrimp breeding ponds, artificial lagoon, exit of farm lines, channel leading to the lagoon and inside the Gomishan lagoon at two time points in mid-May (at the time of the outlet of 30% of the wastewater from the shrimp farms) and November 2017 (end of breeding season and complete testing of water in farms). some of the water quality parameters measured including pH, total phosphate, electrical conductivity, biochemical requirement, temperature, nitrate, solution, turbidity, coliform and nitrate. The results showed that according to the WQI index, the water quality categorizes from bad(48.71) to good(78.96) quality. It seems that the artificial lagoon and the characteristics of the length, width, depth and slope of the channel leading to the wetland are effective in increasing the quality of the water entering Gamishan Wetland from bad to good quality.Keywords: Effluent, Vanamei shrimp breeding complex, Gamishan wetland, WQI index.

The rapid expansion of cities and increasing traffic, coupled with the development of new technologies, has presented countries with unprecedented challenges. Traditional institutions and management methods struggle to adapt to the complexities of a rapidly evolving world. In response, urban planners are working to develop integrated models for 21st-century cities to meet emerging expectations. The concept of a smart city has emerged as a cornerstone of transformation and development in the third millennium. Urban transportation, in particular, has been significantly influenced by advancements in information and communication technology, including the Internet of Things (IoT). This study adopts an applied research approach, employing a descriptive-analytical method for data collection and analysis. Qualitative analysis was conducted using an open-ended questionnaire to identify key components and influential factors. Subsequently, a closed questionnaire was designed, and data were collected from 177 samples using purposive sampling and the snowball technique. The findings reveal numerous challenges faced by Tabriz, as a metropolis, in achieving intelligent urban transportation. Key obstacles include the weakness of integrated urban management, the absence of a clear vision, inadequate planning, limited financial resources, insufficient organizational structures, the lack of IoT-based intelligent systems, reliance on heterogeneous systems, and limited familiarity with IoT-based intelligent systems. These issues highlight the need for strategic interventions to overcome the barriers to smart urban transportation in Tabriz.

The need to address the issue of the quality of urban life in these areas becomes more apparent when the residents of informal settlements are considered to be among the most vulnerable sections of an urban society, and paying attention to the urban and biological needs, Providing the minimum needs and enjoying citizenship rights are among the necessities of life for them. The most important goal of this research is to evaluate the indicators of the quality of urban life in the informal settlements of Tabriz city in Ahmedabad neighborhood. Based on this, the research seeks to find answers to two basic questions; First, which of the dimensions of satisfaction with the quality of urban life among the residents of Tabriz's Ahmadabad neighborhood have a better situation? And then which of the indicators of satisfaction with the quality of urban life in Ahmadabad neighborhood of Tabriz is at a better level?

The current research is applied and descriptive-analytical. The variables of the research have been identified with the use of library studies, and in order to reach the research questions and test the hypotheses, the information was collected through a field study and through a questionnaire. The validity and reliability of the research was also checked. The validity of the questionnaire was obtained by a formal method and the reliability was also checked using Cronbach's alpha, the coefficient of which was 0.863 for the entire questionnaire. The statistical population of the research was the residents of Ahmadabad neighborhood of Tabriz, which were estimated to be 11165 people based on the statistical blocks of Tabriz metropolis in 2015. Using Cochran's formula, the sample size of 371 people was calculated with an error level of 5%. To achieve the main goal of the research based on measuring and evaluating the quality of urban life and satisfaction with it among the residents of informal settlements in the north of Tabriz metropolis (case study: Ahmadabad neighborhood) Friedman, Mann-Whitney and Kruskal-Wallis tests used. The Kolmogorov-Smirnov test was also used to measure the normality of the data. In order to prioritize the dimensions and indicators of satisfaction with the quality of urban life among the residents of informal settlements in Ahmadabad neighborhood of Tabriz, Friedman's test was used and to investigate the difference in the general characteristics of the residents and satisfaction with the quality-of-life Shahri's Mann-Whitney and Kruskal-Wallis statistical tests were used.

In order to prioritize dimensions and indicators of satisfaction with the quality of urban life among the residents of informal settlements in Ahmadabad neighborhood of Tabriz, Friedman's test was used. There is a significant difference between the average ratings of dimensions and indicators of satisfaction with the quality of urban life of the residents of Ahmedabad neighborhood. There is no significant difference between the gender of the residents and their satisfaction with the quality of urban life in the informal settlements of Ahmadabad neighborhood of Tabriz. There is a significant difference between the marital status of the residents and their satisfaction with the quality of urban life in the informal settlements of Ahmadabad neighborhood of Tabriz. Kruskal-Walli’s test was used to determine whether there is a significant difference between the age, education status and duration of residence of the residents of informal settlements and their level of satisfaction with the quality of urban life. Regarding the age and educational status of the residents, it can be said that there is a significant difference between the age and educational status of the residents and their satisfaction with the quality of urban life. However, there is no significant relationship between the length of residence and the job status of the residents in Ahmadabad neighborhood of Tabriz with their satisfaction with the quality of urban life. Because the significance level is greater than 0.05.

This research aimed to investigate the satisfaction of the residents of the informal settlement of Ahmedabad, Tabriz with the quality of urban life. According to the results, it was concluded that among the dimensions of satisfaction with the quality of urban life among the residents of informal settlements in Ahmadabad neighborhood of Tabriz, the economic dimension is more important, followed by the physical dimension (3.11) in the second rank. , the social dimension (3.09) is in the third rank, the welfare dimension (2.82) is in the fourth rank, and finally the health dimension (2.50) is in the last rank. Therefore, the economic dimension is in the first rank in terms of importance in comparison with other dimensions of satisfaction with the quality of urban life for the residents. Among the indicators of satisfaction with the quality of urban life in Ahmedabad neighborhood, the monthly income index of the head of the household ranks first with an average rank of (9.48) and this shows that this index is more important for the residents. In the examination of the difference in general characteristics based on the results, there is no significant relationship between the gender of the residents, their employment status and the duration of their residence in the informal settlements of Ahmadabad neighborhood of Tabriz with satisfaction with the quality of urban life. To put it better, the level of satisfaction of the residents with the quality of urban life in different gender groups, different job statuses and different time periods they lived in the target neighborhood was almost the same. But while there is a significant difference between the age of the residents, their educational status and their marital status with the level of satisfaction with the quality of urban life in Ahmedabad neighborhood. To put it better, people in the age groups below 45 years compared to people in the age groups above 45 years, people with university degrees from higher institutions (bachelor's, master's and higher) compared to people with diploma degrees and Graduates and finally married people have more satisfaction with the quality of urban life compared to single people.

To study the effect of baits type and three lights, green, blue, and white, on the fishing efficiency of Largehead hairtail (Trichiurus lepturus) handline fishing 11,951 samples were done from February to May 2022 in the northern coast of the Oman Sea, Remin Fishing Port. The results showed that only the season and bait had a significant effect on the weight and number of caught T. lepturus caught (P<0.05), while the type of lamp and its interactions did not have a significant effect (P>0.05). The highest CPUE was observed in the months of February and March, using Rastrelliger kanagurta as bait, green LED lamp, at a water depth of 60-110 meters, and a hook depth of 20-30 meters. The use of R.kanagurta bait compared to Sardinella gibbosa has led to a significant increase in the catch of T. lepturus (both in terms of relative frequency and weight), which is recommended to improve the efficiency of hook fishing for fishermen. Due to catch per unite effort and for efficiency of catch rate of T. lepturus in the area, it seems suitable bait, green light and suitable depth of the hook must be used.

Urban streets are dynamic spaces with a sense of movement, which are designed for use by pedestrians and riders, or sometimes only on foot. These spaces often do not respond properly to the needs of the people who use them, and people look at the street as a path just for riding. The purpose of this research is to fully and comprehensively identify the effective indicators in improving the quality of city streets. This research is practical in terms of purpose and in terms of method, using the Delphi technique and the method of structural equations. By using documentary and library methods, opinions and views of experts have been summarized and presented in the form of default indicators. In the first stage, the statistical population of the research was considered to be 20 experts in the field under study. Based on the results of the questionnaire, the initial indicators were analyzed in several stages using the fuzzy Delphi technique, and the final indicators were measured for normality using the Kolmogorov-Smirnov test. In order to finally confirm the indicators extracted from the first stage, confirmatory factor analysis method was used to create a structural equation model. In this section, due to the unknown statistical population, using Cochran's formula, the size of the statistical population was considered to be 384 normal people. Finally, using Friedman's test, the indicators were ranked to determine the effectiveness of each one. The results of the findings are a complete identification of the effective indicators identified in improving the quality of Shahid Beheshti Street in Karaj.

In the era of climate change, ensuring food security through the utilization of agricultural lands in and around cities is paramount. These lands are threatened by urban expansion, and their preservation requires the support of urban planners. This research examines the issue of repurposing urban agricultural land for other urban uses from a social practice perspective rather than a physical or legal one. The article explores why and how changes in agricultural land use occur and the potential for intervention, guidance, and management of this process from a social practice standpoint. The case study focuses on agricultural lands in the west of Tabriz city over more than 50 years, from the approval of the first urban plan to the present. The study employs historical reconstruction for analysis. “Sayings” are analyzed using texts from urban development plans, while “doings” are derived from maps of the current situation from different years and interviews with long-time neighborhood residents. The findings indicate that changes in the three sources of meanings, materials, and competence have altered social practices in different periods during this period. If this continues, it could lead to changes in land use methods. Also, multiple meanings and corresponding materials and competence coexisted during each period, weakening or strengthening the dominant social practice. Throughout the period, the differing perspectives of urban management, landowners, and citizens have influenced the process of social practice.

This study used a dynamic model to predict the fishing status of the Persian Sturgeon (Acipenser persicus) along the coast of the Golestan province in the Caspian Sea. The findings indicated that based on the initial population in 2017 equal to 2500 samples of fish if harvested at the current rate, the stocks of this valuable sturgeon fish will be destroyed in the next 50 years. However, when considering the harvest rate of 0.2 per year (nearly half of the current catch), the amount of fish harvested will increase so that this stock will completely regain its ability to regenerate itself.

The skin is the first protective barrier against physical injuries and pathogens. Spirulina microalgae can be used to improve skin damage in fish due to its content of micronutrients, such as essential fatty acids, essential amino acids, and more. In this study, 360 rainbow trout weighing 50 grams each (with ethical code number 9821316001) were used at Gorgan University of Agricultural Sciences and Natural Resources. Before the final test, the effects of spirulina extract at concentrations ranging from 1% to 15% were evaluated on the fish. Subsequently, three doses—3%, 7%, and 10%—were selected for oral and poultice testing. After inducing skin injuries, the fish were treated both orally and with poultices for 28 days. On the 28th day, blood samples were collected, and biochemical and immune parameters were measured. The observed increases in glucose, cholesterol, triglycerides, total protein, globulin, and immunoglobulin plasma levels, along with elevated lysozyme activity after skin damage, indicate physiological responses aimed at recovery and the restoration of tissue integrity. The results of this study showed that administering spirulina supplements, particularly in the group that received a 7% concentration orally and used an ointment of the same concentration, had beneficial effects on various physiological parameters in injured fish.

Wetlands are a critical part of our natural environment and they can reduce the impacts of floods, absorb pollutants and improve water quality. This survey was conducted at 7 stations in three international wetlands Alagol, Almagol and Ajigol wetlands between February 2017 and November 2018. Results showed that water quality characteristics are somewhat in good conditions but amount of phosphates, was more than standard in summer at Alagol and in Autumn and winter at Ajigol. In this study, 57 different species (25 Bacillariophta, 12 Chlorophta, 9 Cyanobacteria, 5 Pyrophyta, 3 Euglenophyta and 2 Xanthophyta and Carophyta) were identified. Bacillariophyta was dominant in all seasons, however Cyanophyta in Alagol and Ajigol wetlands and Pyrophyta in Ajigol were dominant in summer. In the study of water quality index (WQI), it was observed thatexcept in summer and autumn in Ajigol wetland in other seasons of the studied wetlands were in good quality. It seems that the Atrak river as the main source of water supply for these wetlands, is the place where high amounts of agricultural and rural effluents are received, which practically enter these wetlands, appropriate management and corrective measures should be taken.

This research evaluated the effects of green infrastructure cooling ecosystem service on mitigating urban heat islands in Tabriz metropolitan areas. In this way, the mitigation capacity of the heat islands of Tabriz in all three periods of 1984, 2002, and 2022 was evaluated in 5 classes, from the best case to the worst case, using the urban cooling model of the InVEST software. The results showed that Tabriz condition in 1984, i.e., 15.47% in the class of 0.69 to 0.83%; in 2002, 15.63% in the class of 0.66 to 0.90%; and in 2022, 13.93% in the class of 0.69 to 0.83%, was able to mitigate heat islands. In other words, the Tabriz metropolitan did not perform well in mitigating heat islands in all three periods and is in the worst condition. In all three time periods, the mitigation pattern of heat islands in Tabriz has been consistent with the pattern of agricultural land use and green space of all three types of cluster, block, and fragmented patterns. The pattern of mitigation of heat islands in Tabriz in 2022, unlike in 1984 and 2002, was more fragmented and less than cluster and block type, indicating that Tabriz's green infrastructure has gradually become fragmented and smaller. In 1984, 2002, and 2022, Tabriz Metropolitan had 226,640, 562,269, and 1,263,294 megawatt hours of energy savings due to the mitigation of heat islands due to urban green infrastructure.

This study aims to analyze the fishing trend and predict the future catch of Persian sturgeon (Acipenser persicus) stocks by DB-SRA and dynamic models in the southern shores of the Caspian Sea. The results showed that, according to the size of the initial population in 2018, equal to 153 spicemens(mean weigth 30kg); assuming a constant rate of catch from the population equivalentto 0.2 per year (half of the current catch); until the next 30 years (2050), the amount of catching of Persian sturgeon will increase until the stocks of this species have the ability to fully restore themselves. While assuming the current catch rate, there has been a sharp decrease in the catch of fish in the southern shores of the Caspian Sea; it is estimated that the stocks of this type of sturgeon fish will be extinct by 2050

Estimation of initial production capacity is one of the important principles of water resources assessment and management. Due to the size, depth and different positions of wetlands (inlet area, middle and near the dam base) of some physicochemical parameters of water, plankton (phytoplankton and zooplankton), macrobenthos and fish from 3 stations, in Alagol wetland, 2 stations in Ajigol wetland and 2 stations in Almagol wetland were sampled for one year from winter 2016 to autumn 2017. Comparison of the three wetlands, the results showed that in all seasons, the highest biomass per hectare was observed that phytophagus fish and zoophagus fish in Ajigol is much higher than the other two wetlands. Regarding benthic fish biomass, most biomass was observed in spring, summer and winter in Almagol wetland and in autumn in Ajigol wetland. The highest abundance in all three wetlands is related to Gambusia and in excluding Gambusia fish, the highest abundance in Alagol wetland is related to crucian carp, in Ajigol capoeta and common carp and in Almagol, crucian carp and in relative weight, phytophaguus and crucian carp were the dominant fish. Also, catfish are found only in Alagol lagoon. It seems that the role of releasing benthic fish such as common carp should be considered more and invasive fish should be controlled.

core stability is defined as the ability of muscles to control and maintain the position of the trunk and its movement on the pelvis and lower limbs in order to produce, transfer force and move to the extremities of the body during physical activities. Weakness in central stability leads to impaired energy transfer and reduced sports performance. Also, weakness in the central muscles is related to lower limb injuries. Investigating the effect of central body muscle fatigue on the performance of other organs can provide useful information about the role of central body stability in sports performance. Considering the importance of central stability in sports performance, the purpose of this research is to investigate the effect of central body muscle fatigue on upper limb performance and functional motor screening test scores of male athletes.

A semi-experimental research approach was used, involving 40 male students aged 19 to 26, selected purposefully and based on availability meeting the inclusion criteria. To assess upper limb function, two tests focusing on upper body and upper limb stability in a closed movement chain were employed. The functional movement screening test was also used to measure movement function before and after inducing fatigue. Data analysis was conducted using Wilcoxon and T-paired statistical tests (p<0.05).

The results from the Wilcoxon test indicated that after the fatigue protocol, individuals exhibited significantly poorer performance in deep squats (P=0.001), In-Line Lunge (P=0.001), Hurdle Step (P=0.001), trunk rotatory stability (P=0.001), and the total scores of the movement screening test (P=0.001). However, there was no significant difference in other subtests between the two measurement stages (P<0.05). The paired sample t-test also revealed that individuals performed poorer in the upper quarter Y balance test (P=0.001) and closed kinetic chain upper extremity stability test (P=0.001) after the fatigue protocol compared to before.

The study shows that core muscle fatigue significantly decreases scores in upper functional tests and motor screening, suggesting the need for endurance exercises targeting core muscles to improve fatigue resistance during prolonged activities.

When challenges such as the Corona pandemic arise, metropolitan areas face serious management problems due to the lack of a system of citizen participation based on strong governance and the presence of multiple stakeholders. The solution to such problems requires the transfer of responsibility for the management of urban affairs to the group of actors that make up the bulk of urban governance. The aim of the present research is to use the futurological approach to explain the meaning of urban governance in the post-corona era, to identify the main components of urban governance, to determine the key factors influencing the future of urban governance in the post-corona era, to formulate a golden scenario, the continuation of the existing or static trend and a weak scenario by considering important elements and It is effective and to choose the optimal scenario for urban governance in the post-corona era in the metropolis of Tabriz.

The current research is developmentally relevant in terms of the purpose and descriptive-analytical in terms of nature. Two methods were used to obtain information: Library and fieldwork. The statistical population of the study is 32 experts from academic departments and the city administration, selected through purposive sampling. Micmac, Scenario Wizard and SPSS software were used for data analysis.

19 factors have an impact on urban governance in the post-corona era. Among these factors, 8 key factors (responsibility and accountability, justice orientation, transparency, awareness, citizen participation, legality, decentralization and continuous education of citizens) were identified for urban governance in the post-corona era in Tabriz metropolis. With the help of Scenario Wizard software, strong, weak and highly compatible or credible scenarios were extracted.

Among the scenarios mentioned, the scenario with high compatibility or credibility, as it lies between the other two scenarios, was examined using inductive analysis. Three possible scenarios (golden, continuation of the existing or static trend and disaster) were written for the future of urban governance in the post-Corona era in metropolis of Tabriz, and finally, according to experts, the golden scenario is the optimal scenario for research.

The urban environment has a special place in meeting the needs and satisfaction of people and therefore quality is measured not only based on the objective environment but also based on people's perception of the environment to which they belong. Therefore, the present study has evaluated the quality of the urban environment of the newly established neighborhoods of Shahrekord with a descriptive-analytical method based on library studies and field studies. According to the purpose of the research, quantitative and statistical methods such as multiple regression, structural equations and fuzzy multivariate analysis in GIS environment have been used to assess the environmental quality of the target areas. In this model, in LISREL software, 54 quality indicators of urban environment in the form of 4 physical, economic, social and environmental indicators have been studied and SPSS software has been used for statistical analysis and ArcGIS software has been used to draw analytical maps. . Findings show that in terms of having environmental quality indicators, priority in the western Mirabad neighborhood, physical, environmental, social and economic indicators with 0.599, 0.539, 0.378 and 0.324, respectively. Percentage and neighborhood of Farhangian alley have priority, physical, economic, environmental and social index with 0.412, 0.260, 0.254 and 0.225 percent, respectively, have the most role in the environmental quality of Shahrekord, which shows the variables of satisfaction. From the physical-environmental quality of the neighborhoods, it has the greatest effect on improving the quality of life in the newly established neighborhoods. Also, in examining the situation of Shahrekord, there was an obvious difference in the level of satisfaction of the residents of Mirabad Gharbi and Farhangian alleys.

Historical-cultural contexts are distinguished from other urban contexts by their valuable features; But they often enter the process of burnout due to non-compliance with the rapidly changing needs of residents. This confirms the need for Protection, planning & regeneration in historical contexts. The method of the present research is applied based on the purpose and descriptive-analytical based on the nature and has been done using library tools as well as field studies in the form of a questionnaire distribution (384 people). The sampling method is simple random. To assess the validity of the content validity type and to evaluate the research variables and the reliability of the questions, Cronbach's alpha coefficient was used, which was estimated to be 0.904. To measure the status of stability, 5 physical components - socio-cultural, economic, environmental, cohesion and spatial cohesion in the form of 62 combined indicators have been used. Network analysis model (ANP) was used to determine the weight of each indicator, t-test, CODAS model and path analysis test were used to analyze the indicators, and Decisions Super software was used. SPSS, Excel, Lisrel and Likert spectrum were used and the results showed that all criteria in this range are lower than the average Likert and the coefficients of effective factors in sustainable urban regeneration in the study area; Spatial cohesion and cohesion factors are equal to 0.60, environmental factors are equal to 0.55, social factors are equal to 0.38, economic factors are equal to 0.27 and finally physical factors are equal to 0.16.

With the global surge of urbanization and population growth, the well-being of children within modern urban developments has been largely overlooked, necessitating an urgent need for attentiveness towards their needs in cities. Consequently, the assessment of urban neighborhoods in terms of child-friendly city components becomes an essential area of research. This study employs a survey method to evaluate the dimensions and components associated with a child-friendly city. Utilizing a cluster-spatial sampling approach, ten neighborhoods from five regions of Ardabil are selected as representative samples (two neighborhoods per region). A total of 400 researcher-developed questionnaires are then distributed proportionally based on the population of each selected neighborhood. The collected data is subsequently analyzed using one-sample t-statistics in SPSS software, as well as multi-criteria decision-making models to prioritize the neighborhoods according to the research criteria. The findings reveal distinctive characteristics of child-friendly city dimensions and components across the various neighborhoods of Ardabil. Interestingly, when comparing the dimensions, the environmental-physical and organizational-managerial dimensions emerge as the most problematic areas within the studied neighborhoods. Additionally, it is noteworthy that despite the inherent spatial disparities between neighborhoods, Neighborhood No. 1 in District 4 and Neighborhood No. 3 in District 2 of Ardabil Municipality exhibit greater challenges compared to other neighborhoods under investigation.

This study was conducted with the aim of investigating the effect of different levels of thyroxine hormone in rearing water and diet on growth factors in the early stages of growth of rainbow trout. The experiment was carried out in three stages: hatched eggs until complete hatching, hatched larvae until active feeding, and active feeding until weighing about 1 gram of fry fish. In each stage, the experiment was performed in three concentrations of thyroxine solution (0.03, 0.06 and 0.09 mg/liter) along with the control group (without thyroxine hormone) with 3 repetitions. Thyroxine was added to water in the first and second stages and to food in the third stage. At the end of the third stage, growth indicators were examined. The results showed that the highest final weight and length in treatment 9 were 1.53±0.04 and 5.85±0.31 cm respectively. The percentage of body weight gain and specific growth factors showed a significant difference compared to other treatments (p<0.05) and were 872.45±18.32 and 5.05±0.04, respectively. The highest food conversion rate and obesity rate in the control group were 0.78±0.004 and 1.14±0.07 respectively. According to the present study, thyroxine hormone has led to positive effects on growth factors in rainbow trout fry.

The excessive growth of the aquaculture industry, in addition to using more natural resources, causes a disturbance to the biological and non-biological balance through effluent releases, and water quality indicators provide the possibility of better management of pollution and direction for targeted biological monitoring. The purpose of this research was to evaluate the nitrogen load of the basin and rainbow trout breeding farm on the water quality of Zarin Gol River in Golestan province, Iran, based on a standard index (WQI) by measuring water quality parameters including: pH, total phosphate, temperature, nitrate, dissolved oxygen, turbidity, and total coliform. Sampling was done seasonally at five stations (before and after the first and second fish farm and 1000 meters downstream from the second fish farm) in 2018. The results showed that the concentration of nitrogen and phosphorus in the River during the six months of fish breeding on the second farm was estimated to be 16.5 tons of nitrogen and 2.9 tons of phosphorus. According to the WQI, the results showed that the water quality values in all the studied stations are 79.7 to 87.8, which indicates excellent water quality according to the descriptive table. It seems that under the current conditions, the Zarin Gol River has the ability to self-purification the effluent of two fish farms with the expected capacity.