e. abbasi

Addiction is an important social and health problem in many Middle Eastern countries. Studies show that opium is the most commonly used substance after tobacco in many countries, especially in Iran. Opium is obtained from the seeds of the Papaver somniferum plant and contains more than 40 different alkaloids, the most important of which are morphine, codeine, papaverine, noscapine, and thebaine. Various studies show that morphine, which is one of the most important substances in opium, increases the production of free radicals in the body and reduces the antioxidant capacity. Opium consumption has various adverse health effects on the body. Therefore, long-term use of this combination can be related to some pathological consequences, including neurological disorders, liver toxicity, kidney dysfunction, oxidative stress, and apoptosis. Most drugs are metabolized by liver hepatocytes and excreted by kidney cells. Therefore, opium consumption can directly cause damage to liver cells. Free radicals play an important role in liver diseases. The increase of free radicals and on the other hand the decrease of antioxidants in the body caused liver toxicity. Oxidative stress is caused by an imbalance between the production of free radicals and their neutralization inside the body by antioxidant defense mechanisms. Oxidative stress is produced in various diseases, consumption of toxic substances, and old age, since it is not possible to investigate the effect of opium on human liver cells, and no study has been conducted in this field. The liver is the most important organ that is directly responsible for the metabolism and excretion of opium. Therefore, in this study, the effects of opium on oxidative stress markers in HepG2 cell line were determined.

Human liver cancer cell lines (HepG2) were used in this experimental study. At first, the cell line was placed in a 25 ml flask in the culture medium. DMEM (Dulbecco's modified Eagle's medium) containing 10% FBS (Fetal bovine serum), and 1% penicillin and streptomycin antibiotics were incubated in a 37°C incubator with 5% CO2 . The cells were treated with different concentrations of opium (0-100ug/ml) for 24 hours. Then IC50 was determined and then a lower concentration, IC50, and a higher concentration (three concentrations in total) were used for further studies.The lipid peroxidation was measured by thiobarbituric acid method. The total oxidant was measured using xylenol orange. The amount of total antioxidants was determined by the FRAP (Ferric Reducing / Antioxidant Power) method. The catalase, glutathione peroxidase, and superoxide dismutase enzyme activities were measured by colorimetry methods. the data was entered into SPSS software (Version 20)  and analyzed using ANOVA and Tukey statistical tests. P less than 0.05 was considered a significant level.

Statistical analysis results indicated a significant difference in the amount of oxidative stress factors compared with control (p<0.001). In the group receiving opium with a dose of 60 and 70 mg/ml compared to the control group, the amount of TOS and MDA increased significantly (p<0.001), while the amount of TAC decreased (p<0.001). Also, the activity of catalase, glutathione peroxidase, and superoxide dismutase enzymes decreased in opium-treated groups (p<0.001).

The results of this research showed that opium had a lethal effect on HepG2 cells. Also, opium caused an increase in oxidative stress in this cell line, which indicates the vulnerability of the liver against this compound. The results of this study show that although opium has analgesic effects, it can seriously damage the liver tissue.

Accountants face situations in their work environment where they are faced with the suggestions of destructive managers regarding unethical decision making. Faced with these unethical suggestions, accountants make different decisions that affect their moral development. The purpose of this research is the effect of moral development of accountants as an individual characteristic on accepting or resisting the unethical suggestions of destructive managers with the role of moderating positive and negative emotional states.

This research was carried out using the descriptive-correlation method and is a type of applied research. The statistical population of the research included accountants of companies admitted to the Tehran Stock Exchange in 2021, of which 93 people were selected as a sample using simple random sampling. The data collection tool was a questionnaire. Research data has been analyzed using analysis of variance tests and pairwise comparisons in different states of moral development and emotional states.

The results showed that the moral development and emotional states of accountants have a significant relationship with their ethical decisions in the face of unethical proposals of destructive managers. Also, the findings showed that the emotional states of fear, disappointment, happiness and passion change the size of the relationship between ethical development and ethical decisions of accountants.

This research shows that the personal characteristics of accountants are important and only focusing on accounting knowledge and experience in recruitment is not enough and it can be done by conducting psychological tests when people enter the organization and consider the results of the test in the selection can make a more appropriate choice and prevent financial scandals in the future.

The village, as the basis of the system and due to its position at different levels of the development process, plays an important role in the life and prosperity of any society. Agriculture as the dominant activity in the village has a decisive role in providing independence and food security.  Agriculture has many capacities, and it is very important to use these capacities in order to provide a sustainable livelihood and maintain the population of the villagers. One of these capacities is benefiting from rural tourism. Accordingly, the purpose of this study was to analyze the gap between the current and expected situation of the impact of rural tourism on sustainable livelihoods of rural households.

The present research is applied of view point of its purpose and is a descriptive-survey in terms of its method. The statistical population of the study included 224 households in Kalvan village. Using Krejcie and Morgan table, 135 households were identified as the sample participated in this study. In order to achieve the purpose of the research, a questionnaire was used to collect data. The reliability of the research tool was confirmed by using Cronbach's alpha coefficient. In order to analyze the data, SPSS software was used.

Examining the gap between the current and the expected situation, the results indicate that the expected situation score is significantly higher than the current situation score of the impact of tourism in each of the dimensions of sustainable rural livelihood. The results showed that there is the largest gap between the expected and current status of dimensions of institutional-structural, economic-financial and natural-environmental resources, respectively. Therefore, paying attention to these dimensions, including the introduction of Kalvan village as a tourist destination through mass media, as well as providing the necessary conditions to stabilize the livelihood of Kalvan village households and their permanence in the village will be of great help.

The key message of this study was based on the principle that the expectations of people living in Kelvan village on the sustainability of livelihood assets due to tourism have not been met to a large extent. The need to address the expectations of the target community (tourist areas) is related to the coordination among different organizations, including the tourism organization, the environmental organization, and the agricultural jahad organization of the province, as well as other related institutions. On the other hand, culturalization of the proper use of natural resources by tourists should be paid attention to by those in charge.

Fisheries tourism is one of the types of tourism that has not received much attention in Iran, despite its good status. The benefits of the tourism industry with the high potential of the fisheries and fishing industry can provide an ideal option to connect the two industries in order to leave the difficult conditions of the fishery areas and move toward development. The first step in planning for fisheries tourism development is to accurately identify the potentials and fisheries' attractions to absorb tourists. Thus, the present study aimed to identify the tourists’ attractions of fisheries using a qualitative methodology with an exploratory approach. This research was applied in terms of purpose, and is descriptive and survey in terms of nature and method. The statistical population of this study was relevant subject experts. Using the purposeful snowball sampling method, 23 experts were selected to determine the panel of the experts based on their subject expertise, experiences, and the theoretical adequacy principle. In three rounds, the attractiveness and attractive fisheries activities for tourism were identified using the Delphi technique. In the first round of Delphi, 30 attractions and attractive activities for fisheries tourism were introduced by experts. After the removal of the less important items in the second and third round of Delphi, finally, the consensus was reached about 12 attractions of fisheries tourism, in three categories of fishing and fishery, fisheries industries, and coastal aquaculture.

Gilan province, one of the country's tourism poles in terms of its privileged natural location and climatic conditions, has many natural, historical, religious, cultural, social and economic attractions and numerous God-given gifts. According to the statistical yearbook of 2015, out of a total of 258 residences in the country, there was one tourism residence unit in Gilan province. In 2016, there were 5 accommodation units out of a total of 441 accommodation units, and in 2017, out of 540 ecotourism accommodation units, there were only three official ecotourism units, and this number reached 14 units in 2018. This statistic has grown significantly in the summer of 2019 and the number of eco-tourism residences in this province has reached 48 units. The rapid growth of ecotourism accommodations in recent years makes it necessary to provide proper services to tourists. This leads to the satisfaction and loyalty of tourists towards ecotourism accommodations. In this regard, the present research was designed and carried out with the aim at investigating the satisfaction with the service quality and the loyalty of rural tourists to the eco-tourist accommodations in Gilan province. In this regard, the American model of measuring customer satisfaction is the basis for measuring the satisfaction and loyalty of tourists. According to this model, the satisfaction of tourists in ecotourism accommodations is directly influenced by the quality of services, the expectations of tourists, and the value perceived by them. In addition to the direct effect, the quality of services and the expectations of tourists affect satisfaction indirectly through the perceived value. The satisfaction of tourists affects the loyalty of tourists both directly and indirectly (through the complaint reduction variable).

The study was descriptive - correlation and conducted through a survey method. The statistical population of the study included all rural tourists of ecotourism residences in Gilan province in 2020 year. The sample size was 315 tourists which were selected among five cities by using stratified random sampling method. The research instrument was a questionnaire whose content validity was confirmed by professors and relevant experts and its reliability was determined by calculating the Cronbach's alpha coefficient between 0.72-0.89. Data were analyzed using SPSS software. To describe the variables mean, standard deviation, frequency, percentage and cumulative percentage were used. To investigate the relationship between the variables, the correlation coefficient was used, and to calculate the difference between satisfaction and loyalty in different groups, the Mann–Whitney U and Kruskal–Wallis H tests were used. Finally, path analysis has been used to investigate the direct and indirect effects of variables on the dependent variable.

According to the results, tourists' satisfaction and loyalty to ecotourism residences were assessed at a good level. The results showed that there was a positive and significant relationship between service qualities, customer expectations, perceived value with the dependent variable of tourist satisfaction at the level of 1%. In addition, there was a positive and significant relationship between tourists' satisfaction and complaint reduction with the dependent variable of loyalty at the level of 1%. In comparison, the perceived value variable has a higher correlation with the tourism service satisfaction variable. In other words, the valuableness of the services received makes tourists more satisfied. Meanwhile, according to the results of the path analysis, the received service quality variable has the highest total causal effect on the satisfaction variable, and the service perceived value variable ranks second. The results of Mann–Whitney U tests showed that there was a significant difference between men and women according to the variables of satisfaction and loyalty at 5% level. In this case, men are more loyal than women. The reason for this difference is probably due to women's higher expectations of the services provided by eco-tourist accommodations. According to the results of path analysis, the variable of services quality has the most total causal effect on satisfaction and the variable of reducing complaints has the most direct and total causal effect on tourist loyalty. Dealing with tourists' requests, providing compensatory services, as well as the appropriate quality of the services provided, will lead to the loyalty of the tourist and his/her next visit to the tourist accommodation.

In the present research, the satisfaction and loyalty of tourists in eco-tourism accommodations has been measured using a valid and documented framework. Examining the mean of the main variables shows that all these variables are at a medium to high level from the point of view of rural tourists. In other words, tourists have evaluated the current state of service provided, fulfillment of expectations, value of services received, satisfaction with services provided, addressing possible shortcomings and loyalty to eco-tourism accommodations in an appropriate situation. In order to improve the quality of eco-tourism accommodation services and also since the monitoring of the implementation is considered a basic process, it is suggested to evaluate the performance system in eco-tourism accommodation, especially in the field of services to tourists.Considering the significant growth of eco-tourism residences in recent years in Gilan province and in order to prevent a merely quantitative growth and also with the aim of sustainability and permanence of these residences, the results of the present research can be taken into consideration by the officials and owners of the accommodations in order to gain the satisfaction and loyalty of the tourists.

The purpose of this research was to investigate the implicit meaning making of the “self” and “other” in the upper secondary textbooks through Van Dijk discourse analysis. This study was a qualitative research based on discourse analysis with research population of all upper secondary textbooks (Humanities Branch). In this study purposeful sampling method was used. The method of data collection and analysis were documentary through the review of primary (seven textbooks) and secondary sources as well as review of words, text, and paragraphs, respectively. The findings reveal that the authors of selected textbooks, being aware of the ways of reproducing power in discourse, have highlighted self-positive identity and other negative aspects through the use of implicit meaning making strategy. According to the findings, it is suggested that curriculum planners and authors make a fundamental change in the content of textbooks through a better and deeper introduction of modern concepts related to the culture and civilization of Islam and Iran (self-positivity) instead of extreme emphasis on negative aspects of other cultures.

It is believed that the marine animals contain many compounds that could be beneficial for the treatment of many diseases. In this study, the acetone extract of Stichopus hermanni was fractionated by a liquid chromatography and then fractions were assayed for terpenoids. The fraction C18 that received a positive response for terpenoids was purified further and characterized by the liquid chromatography, mass spectral, and Thin-layer chromatography analysis. A terpenoid compound, squalene, was identified as the constituent of the bioactive extract fraction. Antimicrobial activity of C18-3 was tested against Bacillus subtilis, Bacillus cereus, Pseudomonas aeruginosa, Salmonella typhi, Proteus vulgaris, Escherichia coli, Klebsiella pneumonia, Staphylococcus aureus, and Nocardia brasiliensis pathogens. The lowest MIC and MBC values were observed in the Bacillus cereus (50 µg/mL) and Staphylococcus aureus (500 µg/mL), MIC and MFC the fungal pathogen Candida albicans (400 and 2000 μg/mL) and was cytotoxic against KB/ C152 and HUT-78/C185 cells (IC50 6.1 μg/mL and 6.29 μg/mL). This research suggests S. hermanni can be used as an alternative source for the separation and purification of squalene compound as a medicinal supplement.

In recent years, a nanoparticle-based strategy has shown that non-denatured protein toxins can be used to enhance the appropriate immune response. Once the toxin reacts between the nanoparticles and the protein (toxin), it loses its toxicity because it does not attach to its ligand at the cell surface. The results of the nanoparticle and toxin complex show that the nanoparticles facilitate the internal release of the toxin. Clostridium perfringens beta toxin is produced by Clostridium perfringens type B and C, and diarrhea is the most important disease caused in newborn lambs. When beta toxin forms a complex with nanoparticles, the reaction between the toxin and the nanoparticle leads to the formation of a new form of nanoparticle in which the toxin loses its lethality due to its involvement; therefore, it becomes a toxoid. The nanoparticles used in this research are of poly lactic-co-glycolic acid (PLGA) type, one of the most developed biodegradable polymers. This study aimed to isolate and purify Clostridium perfringens beta toxin and produce its complex with PLGA nanoparticles to form a non-toxic structure. In this study, Clostridium perfringens beta toxin type B was isolated using ammonium sulfate precipitation and gel filtration chromatography. Toxin assay was performed in vivo (lethal dose [LD50]) and in vitro by sodium dodecyl sulphate-polyacrylamide gel electrophoresis at each stage, and the quantity of purified toxin was calculated to be 10 mg/ml. Afterward, the beta toxin antigen was used as the basis for the preparation of nanotoxoid candidates with nanoparticle formulation. Moreover, the PLGA polymer and water-oil-water methods were used to fabricate nanoparticles. Under optimal conditions, nanoparticles without antigen with an average size of 100 nm and zeta potential of -23.28 mV, as well as nanoparticles containing antigen with an average size of 120 nm and zeta potential of -18.2 mV, were prepared. When nanoparticles are injected into mice with the beta toxin, the toxin becomes a toxoid with no toxicity effects, and it cannot bind to its receptors and reveal its effects. In this study, the mice showed mild symptoms in one case, and none of them died. The beta and PLGA toxin model could also be applied as a candidate to study the release and immunization of the target animal. In order to achieve antigen regulation using natural polymers, it is recommended to conduct a comparative study between nanoparticles based on natural polymers.

Posterior crossbite is a common malocclusion disorder in the primary dentition that strongly affects masticatory function. To the best of the author’s knowledge, for the first time, this article presents a reasonable and computationally efficient diagnostic system for detecting characteristics between children with and without unilateral posterior crossbite (UPCB) in the primary dentition from the surface electromyography (sEMG) activity of masticatory muscles. In this study, 40 children (4–6y) were selected and divided into UPCB (n = 20) and normal occlusion (NOccl; n = 20) groups. The preferred chewing side was determined using a visual spot-checking method. The chewing rate was determined as the average of two chewing cycles. The sEMG activity of the bilateral masticatory muscles was recorded during two 20-s gum-chewing sequences. The data of the subjects were diagnosed by the dentist. In this study, the fast Fourier transform (FFT) analysis was applied to sEMG signals recorded from subjects. The number of FFT coefficients had been selected by using Logistic Regression (LR) methodology. Then the ability of a multilayer perceptron artificial neural network (MLPANN) in the diagnosis of neuromuscular disorders in investigated. To find the best neuron weights and structures for MLPANN, particle swarm optimization (PSO) was utilized. Results showed the proficiency of the suggested diagnostic system for the classification of EMG signals. The proposed method can be utilized in clinical applications for diagnoses of unilateral posterior crossbite.

Among the key strategies in higher education is to prioritize the development of the entrepreneurial university. In this regard, the University of Applied Sciences and Technology (UAST) is one of the main institutions involved in vocational higher education, especially in the agricultural sector, which aims to help graduates acquire the knowledge and skills they will require. To this end, the university needs to plan for and develop entrepreneurial educations in its training system. Accordingly, the present study aimed to strategically analyze entrepreneur UAST in the agricultural sector. The statistical sample included 19 individuals, who were presidents, deputies, and managers of a university or managers of agricultural applied science and technology centers. After interviews and reaching theoretical saturation, the strengths, weaknesses, threats, and opportunities of the agricultural applied sciences and technology centers were specified. The results of the SWOT matrix show that the aggressive strategy (SO) is the most appropriate strategy for the agricultural centers of UAST. The most important strategies within this approach included ‘organizing and developing agricultural applied sciences and technology programs in a balanced manner’; ‘designing and implementing a province-wide educational need assessment model for the agricultural sector’; ‘developing agricultural modular curricula and getting involved in new labor market potentials with the aid of the executive agencies’; ‘enhancing the quality of agricultural training components’; ‘developing financial resources and the use of the existing potentials of the agricultural sector with no financial burden on the government’; ‘basing decisions on research’; and ‘setting policies based on the modern agricultural and natural resources’ technology’.

 Glucagon-like peptide 1 (GLP-1) has anti-diabetic, antioxidant and anti-inflammatory properties that change under different conditions. This peptide is known as a therapeutic target in diabetes and obesity. The aim of this study was to investigate the relationship between GLP-1 and oxidative stress in preterm infants.

In this case-control study, 40 term and preterm infants (gestational age less than 37 weeks) were used. GLP-1 concentration was measured by ELISA. Total antioxidant capacity (TAC), total oxidant status (TOS) and uric acid concentration were measured.

Serum GLP-1 level in preterm infants was significantly higher than term infants (p=0.003). Serum TAC level in preterm infants (973.16±235.53) was significantly lower than term infants (837.00±218.97) (p=0.006). Serum TOS level in preterm infants (65.46±33.52) was significantly higher than term infants (31.50±14.62) (p<0.001). Uric acid levels in preterm infants (5.83±1.73) were statistically higher than term infants (5.13±0.90) (p=0.02). Serum GLP-1 level in preterm infants was negatively and significantly correlated with TAC (p<0.001, r=-0.674) and positively and significantly correlated with TOS (p<0.001, r=0.754) and uric acid (p<0.001, r=0.633).

The results showed that the levels of GLP-1, TOS and uric acid in preterm infants were higher than term infants and GLP-1 had a negative correlation with TAC capacity and a positive correlation with TOS and uric acid in these infants.

In this research, a novel nonlinear control strategy along with its simulation for a quadrotor helicopter is proposed. In the present work, a six-DOF dynamic equations of the quadrotor system subjected to unknown external disturbances based on the Newton-Euler equations is developed completely and without any simplification. Considering the under-actuated and strongly coupled characteristics of quadrotor helicopter, a nonlinear control method is designed using integral backstepping combined with the sliding mode control (integral BS-SMC) to stabilize the qudrotor attitude and to tracking the desired trajectory. The designed controllers based on the hierarchical control scheme can be used to control the rotational and translational movements and their stability are validated by the Lyapunov stability theorem. Using the proposed controller, the chattering phenomenon and discontinuousness of the control inputs faced by traditional sliding mode control (SMC) can be avoided. The feasibility and performance of the presented control approach is verified by the simulations under different scenarios. The results show that the proposed nonlinear control method not only has a better tracking performance than PID controller, but also has a higher robustness when unknown disturbances occur.

The present research aimed to investigate the mediating role of the rural entrepreneurial ecosystem in linking the pluriactive rice farmerschr('39') motives to pluriactivity consequences in the Haraz Watershed in a descriptive-correlational study conducted through a survey technique. A sample of 182 pluriactive rice farmers in the Haraz Watershed participated in the study. The results of descriptive statistics showed that in both pull and push motive variables, the means were higher than the medium level. However, concerning the variables of rural entrepreneurship ecosystem and pluriactivity consequences, the means were lower than the medium level. In path analysis, the direct effects of the independent variables showed that the pull motive and rural entrepreneurial ecosystem had a significant and positive effect on the consequences of pluriactivity, while these consequences were not affected by the push variable significantly. The indirect effects of the independent variables revealed that the push motive had a significant and positive effect on the rural entrepreneurial ecosystem. However, the pull motive had no significant impact on the rural entrepreneurial ecosystem. The study has practical implications for institutions related to rural development, in general, and institutions related to rural business development, in particular. The latter institutions, especially educational and extensional centers in public and private sectors that are involved in rural regions, could encourage rice farmers to establish and develop their business based on their motives.

Lean production system is a new management approach and a business strategy that results in the elimination of waste (costs and time) and improvement of the performance and overall value of an organization. The main objective of this study was to investigate factors influencing implementation of Lean Production Principle (LPP) and its relation with the performance of Small and Medium-sized Food Industry Enterprises (SMFIEs) in Khuzestan Province. This study was a kind of descriptive-correlation and causal-relation that was conducted through a survey technique. Statistical population of the study consisted of all managers in Small and Medium Enterprises (SMEs) in Khuzestan food industry (N= 307). By using Krejcie and Morgan’s tables and stratified random sampling method, 170 person were selected as sample, of which 161 person completed the research questionnaires (return rate 94.7%). The results show that among the eight factors that influence the implementation of LPP, three variables of “customer relationship management”, "human resource management”, and “employees’ empowerment” have the most direct effects on LPP and, ultimately, the highest total effect on SMFIEs performance. The implementation of LPP could explain about 31 percent of variances in SMFIEs performance. Conducting justification and education workshops not only enhances the knowledge of SMFIEs managers, but also helps implement the LPP and, subsequently, improves the performance of SMFIEs.

Social capital is seen as the cornerstone of the endogenous development of a society in general and rural society in particular. Accordingly, the purpose of the present study was to investigate the canonical correlation between social capital dimensions and sustainability components of pluriactive rice farmers' activity in the Haraz plain watershed of Iran. It was an applied research in terms of purpose and a descriptive-survey study in terms of method. The statistical population of the study included all pluriactive rice farmers in the plain. Due to the lack of proper database, the snowball sampling method was used for sampling; finally, 182 concerned farmers were identified and participated in the study. The results showed that the relationship between the canonical variables of social capital and sustainability of pluriactive rice farmers' activity was 0.41; also, 17 percent of the variance of the sustainability of pluriactive rice farmers' activity was explained by the social capital canonical variable.Therefore, the higher the level of cognitive and structural components among pluriactive rice farmers, the higher the level of ecological, social and economic sustainability.

Systematic function of marketing along with other techniques and concepts in order to achieve specific behavioral targets for fulfilling social results is social marketing. The purpose of this study is to design a social marketing model in the field of water and wastewater industry in the country. The used method in the research was qualitative and it was conducted by the use of Grounded Theory strategy. For this purpose, semi-structured in-depth interviews were conducted with 16 experts and specialists in a targeted manner using the snowball method. The data is regularly structured using the Strauss approach, which emphasizes the steps of data analysis, including open, axial, and selective coding, and the development of a logical model with a visual description of the generated theory. After all encoding steps, the final model was achieved. The findings showed that the main strategic subjects were: education, development of communication and reminders. The components of the categories include the following, respectively: increasing the level of awareness and public education, education of housewives, distance education, compiling educational materials and holding explanatory classes and courses and training at schools for the subject of education; holding exhibitions, press forums, putting up posters, pictures and playing films, printing slogans about economizing and advertising in the media for the subject of development of communication; and putting up boards and sending individuals to homes for reminding about economizing for the subject of reminders. Finally, preserving and saving water resources, reducing government and household expenditures, observing justice in water distribution, preventing water rationing, preventing exit of currency from the country and creating the foundations in the country for economic growth and development were identified as the consequences of the final research model.

Today, feature selection, as a technique to improve the performance of the classification methods, has been widely considered by computer scientists. As the dimensions of a matrix has a huge impact on the performance of processing on it, reducing the number of features by choosing the best subset of all features, will affect the performance of the algorithms. Finding the best subset by comparing all possible subsets, even when n is small, is an intractable process, hence many researches approach to heuristic methods to find a near-optimal solutions. In this paper, we introduce a novel feature selection technique which selects the most informative features and omits the redundant or irrelevant ones. Our method is embedded in PSO (Particle Swarm Optimization). To omit the redundant or irrelevant features, it is necessary to figure out the relationship between different features. There are many correlation functions that can reveal this relationship. In our proposed method, to find this relationship, we use mutual information technique. We evaluate the performance of our method on three classification benchmarks: Glass, Vowel, and Wine. Comparing the results with four state-of-the-art methods, demonstrates its superiority over them.

Forest road construction is one of the activities that not only cause a lot of changes in the plant and animal species of forest ecosystem, but also, due to its widespread use in forest management, it is one of the most important projects that should be assesed. The aim of this research was to evaluate the environmental, social, and economical impact of Dohezar road of Tonekabon in the three stages including; before, during and after the road construction. In this study, the Geocybernetic Assessment Matrix (GAM) method, which is the latest method of evaluating effects, was used. In GAM, the parameters selected or determined by the evaluation criteria were examined according to the three aspects of environmental, social and economic. The results showed that the total geocybernetic score before road construction, during road construction, and after road construction was similar (before road construction: -13.33; during road construction: -80.78, and after road construction: -36.47), indicating that the construction of the Dohezar road had negative effects, especially during construction, but social and economic services, especially in the after road construction, have kept the total geocybernetic score constant. By implementing the GAM evaluation method, a suitable tool is obtained to ensure the proper implementation of the project or to stop it, which can be considered as a way to determine, predict and interpret the environmental, social and economic effects of the road construction project on the environment of the study area.

The main and effective treatment for diabetes is the use of insulin and synthetic drugs and herbal medicines, which may be accompanied by several side effects. Given that GLP-1 secretion is reduced in diabetic patients compared to healthy individuals, the aim of this study was to determine the simultaneous effect of resveratrol and probiotics on insulin secretion and glucagon-like peptide (GLP-1) and to evaluate insulin resistance in diabetic rats.

In this experimental study, 40 adult male Wistar rats weighing approximately 250-300 g were used. Animals were randomly divided into 5 groups: control group, diabetic group (using 65 mg/kg streptozotocin and 110 mg/kg nicotinamide intraperitoneally), diabetic group treated with probiotics (50×109 bacteria/kg body wt−1 daily by dissolving in water), diabetic group treated with resveratrol (10 mg/kg by gavage method) and diabetic group treated with probiotics and resveratrol (co-administration group). After four weeks, the animals were sacrificed and pancreatic tissue and blood samples were isolated for histopathological tests and biochemical tests. Blood glucose, insulin resistance, pancreatic GLP-1 as well as pancreatic histopathology were assessed.

The co-administration group compared with the diabetic group caused a 42% reduction in serum glucose levels (p<0.001) and a 30% reduction in insulin resistance (p<0.001). The co-administration group also caused a 23.5% increase in insulin levels (p<0.001) and an 88% increase in GLP-1 (p<0.05). The co-administration group improved the histology of the pancreas.

The results of the study showed that resveratrol and probiotics are effective in controlling diabetes by increasing the levels of GLP-1 and insulin and decreasing insulin resistance.

The purpose of this study was to identify Professional Competencies (PCs), including General and Specific Competencies (GSCs), of Agricultural Teachers (ATs) working with Students with Special Needs (SSNs), known as exceptional students (1,013 people), in Vocational High School Education System (VHSES) in Iran, within two phases. Accordingly, the main objective of the first phase was to identify General Competencies (GCs) of these teachers. Therefore, in the first phase, the components of teachers’ GCs were taken from theoretical literature and research documents via content analysis and the findings revealed that the GCs encompassed 6 components of Instruction Design (ID), Professional Development (PD), Professional Ethics (PEs), cooperation, Perceived Student Diversity (PSD), and technology. The objective of the second phase of this study was also to find Specific Competencies (SCs) of ATs working with SSNs. This phase of the study was conducted using the classical 3-step Delphi technique. In this respect, the specialized Delphi team consisted of 22 ATs working at Iran’s Exceptional Schools (ESs), selected through purposive sampling method. Finally, the findings reduced to the identification of 24 SCs for ATs working with SSNs, which were then grouped into two categories of Agricultural Competencies (ACs) and Exceptional Competencies (ECs).

The effect of cooling rate after annealing at 900 °C on the microstructure and hardness of high entropy alloys was investigated using two typical samples with the chemical composition of Co16Cr14.5Fe29Mn11.5Ni29 and Co11.5Cr7Fe27Mn27Ni27(Nb0.08C0.5) (at%). The microstructural characterisation and hardness measurements were carried out by optical microscopy, scanning electron microscopy, wavelength-dispersive X-ray spectroscopy, electron back scattered diffraction, X-ray diffraction technique and Vickers hardness testing. A face centred cubic crystal structure matrix was observed in both alloys before and after annealing and regardless of cooling conditions. SEM analyses revealed an extensive precipitation in Co11.5Cr7Fe27Mn27Ni27(Nb0.08C0.5) alloy after annealing. It was also found that air/furnace cooling can enhance grain growth-coarsening just in Co16Cr14.5Fe29Mn11.5Ni29. However, the hardness results generally showed insignificant hardness variations in both alloys after water-quenching, air-cooling and furnace-cooling. The results suggested that the hardness is mainly controlled by solid solution strengthening.

This study adopted a survey approach to address and determine the effects of educational system components on strengthening the teamwork behavior of students in the agricultural higher education system of Iran. The statistical population consisted of all agricultural students in five universities of Iran. A sample of 291 students was selected using random stratified sampling method with proportional allocation. A structured questionnaire was used to collect data. The data were analyzed by structural simulation technique using Smart PLS software. The results showed that there was a positive and significant relationship between teamwork behavior of students and the components of the higher education system, which included the teacher, student, curriculum, and the learning environment. The results also showed that the curriculum component had the most impact compared to other components. Also, the presented Applied Structural Equation Model is a strong theoretical model for predicting the teamwork behavior of the students.

At the colleges of agriculture in Iran, lecture is used as a dominated teaching method. Team learning is one of the most commonly used educational methods in the present erea. The aim of this study was to compare the Team Member Teaching Design (TMTD) and the regular lecture method on the academic achievement and teamwork behavior of agricultural students. A within-subject design was followed for two courses in which students first attended a series of lectures and then participated in team teaching. Differences between lecture and team teaching methods were examined for their academic achievement and teamwork. The study samples were taken of Agricultural Extension and Education Department of the University of Tehran during the academic year of 2017-2018. The mean scores of academic achievement and the teamwork behavior of students were compared. In compared coursess, the effect of TMTD method on the academic achievement of students was shown. The results of means comparison tests indicated a significant difference between the two methods of teaching in the field of academic achievement and the strengthening of the teamwork behavior of students. The paper further discusses team method implementation and its implication for teaching and proffers the way forward for an effective use of teaching methods for better results in the classroom teaching and learning process.

Turbochargers are used to increase engine manifold air pressure. Control of intake manifold pressure is crucial issue which is done through the speed control of turbocharger, but since it is difficult to directly control the speed of the turbocharger, it is done indirectly through a gate that called the waste gate, which is located in the engine outlet and turbocharger’s turbine inlet. One of the most common control methods for control of turbocharger is the gain scheduling control. This method design in parameter look-up table, supervisor and system subsection to control turbocharger performance. The performance of control loop can be evaluated with accuracy of considered model and designed controller. In this paper, the  engine model with the turbocharger has been created in the GT-POWER software, then, by defining the input and output parameters in the GT-POWER model, the model is coupled with MATLAB software to controller design. In the next step, two methods have been developed to design the controllers for the gain scheduling control method. Eventually, effectiveness of turbocharger control using gain scheduling control is shown.

As an essential issue in traffic crashes, human factor plays an indispensable role. This study uses the general health questionnaire (GHQ-12) within some socio-demographic and also a number of daily exercise related questions for prediction of traffic crashes among taxi drivers in the City of Tehran. A novel technique is been developed by applying nonlinear-learning of composition model of Adaptive Neuro-Fuzzy Inference Systems (ANFIS) and Particle Swarm Optimization (PSO) with M5 model tree. In order to improve the generalization ability of a single data driving algorithm, a cluster of ANFIS models with different nodes and hidden layers are implemented to extract the inherent relationship between traffic accident rates and human factors. The predictions of ANFIS models are combined applying a nonlinear weighted average method composed of M5 tree, and the PSO is utilized to find the optimal parameters of ANFIS models. The performance of the proposed model is evaluated in a case study and the relevant data are collected from a large group of Taxi drivers in the City of Tehran, Iran; as it was carried out to predict the associated accident rates. The Nash-Sutcliffe coefficient (NSE) and different error criteria are utilized to assess the prediction efficiency of the associated Hybrid model. Results indicate that the M5 tree is capable in enhancing the prediction accuracy of the novel model applied in the prediction of the accident rates as in comparison with the popular ANFIS model. Moreover, the linear relationships generated by M5 tree show the sensitivity of ensembled model accuracy on the single ANFIS models, which have a partial tendency in underestimation of the traffic crashes.