fathi

To improve the personal relations among students the use of community of inquiry method was hypothesized to be effective, especially if the content being learned in this way is Philosophy for Children (P4C). To find support for this hypothesis, a group of 50 female students whose interpersonal relations were below the average was selected and then divided into two subgroups of experimental and control. Using a questionnaire, both subgroups were asked about the quality of their interpersonal relations before and after the experimental group going through a eight-session course on Philosophy for Children. Covariance analyses of the data revealed a significant difference between the two groups indicating the effectiveness of the community of inquiry method in improving the interpersonal relationships.

The study zone is a part of 1:100000 Anarak map which is located in the east of Isfahan province, at 10 km North of Anarak town. The Structures of this Zone is formed in Anarak-Khor region and are affected by the movement toward the north of Arabian plate, and activation of two strike-slip faults (Dorouneh and Biabanak) as a result of the mentioned movement. There is thrust fault in Chahshoureh with the east-west direction. This fault is not only a thrust but also it has during the different duration, dextral component, and then instal components. Polymetal mineralization is restricted to the hanging wall and into vein and veinlet of the listwanites of the study zone. Litswanites are uncommon carbonated rocks that forms from the alteration of ultramafic units and are abundant in silicic-carbonated threads. Ophiolites of this area belong to the ring ophiolites of central Iran. In this study, the direction of an effective paleo-stress field is reconstructed with the collecting data from slickenlines of faults and processing them by using inversion method. Trend and position of principle paleo stress axes are calculated from analysis of slickenlines by using T-tecto3 software, and it is found a that listwanites has formed in  a tear fault. As the tectonic regime of the study zone show an iterative model it could be listwanites are forming is the similar way and restricting U- mineralization to their veins and veinlets. Also, according to the same forming, it could be concluded that in the west listwanites we have a poly-metal and U-mineralization.

β-tubulin protein is the protein that has a key role in plasticity and neurogenesis in the mature neurons. On the other hand, endurance training is effective in neuron life and lifespan. The present study aimed to investigate the effect of 20 days swimming training on class III β-tubulin and the number of ganglion cells in DRG of Wistar male rats.

In this experimental study, 16 male Wistar rats (healthy) weighing 200-250 gr were randomly divided into control and exercise training groups. The exercise training group performed a swimming training program for 20 days, the control group did not participate in any activity. In the following, the ganglionic cells population and β-tubulin protein level in the posterior root of the spinal cord was measured by Cresyl violet staining method and immunofluorescence, respectively. Finally, data were analyzed using the independent t-test.

The results showed that swimming activity significantly (p=0.0001) increased beta-tubulin protein in the experimental group. Also the a significant increase in the ganglion cells population was observed in the spinal cord posterior root of the experimental group compared to the control group (p=0.0001).

Swimming endurance activity may have a protective and restorative effect by increasing neurogenesis on dorsal root ganglion neurons.

Particle Swarm Optimization (PSO) is a metaheuristic optimization algorithm that owes much of its allure to its simplicity and its high effectiveness in solving sophisticated optimization problems. However, since the performance of the standard PSO is prone to being trapped in local extrema, abundant variants of PSO have been proposed by far. For instance, Fuzzy Adaptive PSO (FAPSO) algorithms have been being studied extensively in recent years. In this study, a modified version of PSO algorithms is presented and is named as Adaptive Particularly Tunable Fuzzy Particle Swarm Optimization (APT-FPSO). In it, the global and personal learning coefficients of every single particle are tuned adaptively and particularly, at an individual extent, within each iteration with the aid of fuzzy logic concepts. Ample statistical evidence is provided indicating that the proposed algorithm further improves the potentialities and capabilities of the standard PSO.

In general, rivers are one of the best and most accessible water resources at the disposal of mankind.  So, given the effect of the force of water and changes on the  flow patterns and consequently, on river morphology changes, the analysis of the flow in the river is important and necessary to organize projects, flood control and water supply structures downstream. In this study, by using numerical models CCHE2D hydraulic conditions Dimeh River Bridge between Oregon Bridge Sudjan was investigated. CCHE Model is a mathematical model capable of simulating the flow patterns and sediment transport in rivers and canals laboratory network. The numerical model in 1998, based on the calculations by the National Centre for Water Science and Engineering, University of Mississippi (NCCHE), was developed and has been applied in many research projects related to water engineering. At the outset, the input data required model provides and numerical model was implemented. In the next step, the results of the model were calibrated and validated using field data measurements; eventually, they were extracted and their model results were compared; it was confirmed that CCHE model could still simulate the flow pattern.

The concentrated solar power (CSP) is one of the renewable energy sources in which solar irradiation heat energy will be used in a steam turbine to generate electrical grid. Solar radiation is absorbed by a solar receiver reactor on the surface of a porous solar absorber. In this survey, synthesis and mechanical/thermal characterization of micro-porous silicon carbide (SiC) absorber to be used in solar reactor is carried out. SiC foams were synthesized and categorized based on three different pore sizes i.e. 5, 12 and 75 ppi. Mechanical behavior and thermal shock resistance of porous foams in the working temperature range for absorber (25-1200 °C) were evaluated. Results revealed that the specific compressive strength (σc/ρ) of foams increase exponentially by a decrement in the porosity percentage and the average pore size. Moreover, for foams with smaller pore size, a considerable decrease in mechanical strength due to thermal shock was observed. This could be due to increase in the number of struts per unit volume i.e. more weak struts to withstand the mechanical loading. So, porous foams with coarser pore sizes were distinguished to be more capable of tolerating thermal shock while serving as solar absorbers.

In this research, the effects of urban wastewater on the diversity and distribution of fish in the Saghez River, Kurdistan province, were investigated at four different stations including 1) the station of the Cheragveis dam, 2) the station before the wastewater into the river, 3) the station after the entry of wastewater into the river; and 4) the station before the river to the Kazemi dam during Jully to September of 2017. The Shanon-winer, Margalof and Simpsoon indices were used for calculationg the species diversity and the correlation between physicochemical factors and species diversity and frequency of fish species were analyzed using CCA analysis in Canoco software. The results showed that the species Capoeta gracilis showed the highest aboundance in all 4 stations, but the maximum and minumum number of fish species belonged to stations 4 and 2, respectively. The cyprinidae family with 12 species and subspecies and 96.2% of the total number of fish were observed at all stations. The Nemacheilidae and Sisoridae families with one species had the lowest aboundance. Based on the results of biodiversity indices, the highest Margalf, Shannon-wiener and Simpson index was observed at station 4. However, for the Simpson index, two stations 3 and 4 were similar. In terms of correlation between biodiversity indices and physicochemical factors, there were correlations between Simpson dominance index with nitrate, phosphate, and BOD5 , Shannon-wiener index with nitrate, phosphate, ammonia and BOD5. On the other hand, both indices showed a high correlation with the dissolved oxygen. The highest positive correlation was found between the frequency of C. auratus and nitrate, phosphate, ammonium and BOD. In conclusion, effluent of the city Saghez has increased the amount of nitrate and phosphate in the river, which has resulted in the removal of some species and the presence of herbivorous species, thus influencing the population of the Seghez River fish species. Therefore, it is recommended that the effluent of the city Saghez should be treated before entering the river, in order to prevent permanent destruction of natural ecosystems.

Among heavy metals, arsenic has been identified as a carcinogenic element. High concentrations of arsenic in water resources can be a major concern for public health and the environment. Arsenic pollution in the groundwater resources has been reported in many parts of the world and Iran, especially in some parts of Kerman province. In the present study, Arsenic release mechanism and prediction of its concentration variations in groundwater resources were investigated in Sirjan Plain, in Kerman Province. For this purpose, after conducting primary field studies and taking into account the position of the piezometric wells, 21 piezometric wells were selected across the plain surface and the layers of clay in them were examined. Then, sampling of groundwater resources was conducted seasonally from agricultural and drinking wells near piezometric wells. The results showed that the concentration of arsenic was directly related to the clay texture of the earth's layers. The high concentration of arsenic was related to the discharge of groundwater from the clay layer and the oxidation and dissolution of arsenic in groundwater. Therefore, the Oxidation-Reduction cycle is one of the effective factors on releasing of arsenic in the region. In order to the prediction of arsenic concentration variations in the next 5 years, Quantitative Modeling was done using GMS software with a focus on the piezometer wells that had a potential for the increase in the unsaturated clay thickness due to the reducing level of groundwater and the presence of clay layers in them. Based on the results of modeling and relationships between arsenic concentration variations and groundwater level variations during the sampling period, it was determined that arsenic concentrations increase with groundwater resources discharge. Therefore, the quantity and quality of groundwater will decreased with the continued of exploitation of aquifers. According to these results, water management and reduced harvesting of groundwater resources can be effective on the reduction of arsenic concentration increasing rate.

Rural production cooperatives, as an effective tool for rural development, have an important role in increasing the capabilities of rural farmers. In order to achieve the goals, in addition to human, social, and economic support, cultural development is also needed. In this regard, this study aimed at investigating the impact of cultural capital on the empowerment of rural production cooperative members. The study was conducted in Amol, Iran. A total of 6,150 members of 11 rural production cooperatives were selected as the statistical population of the study, and 300 of whom were selected as the study sample based on Cochran's formula. Data collection was done using a researcher-made questionnaire composed of two parts of cultural capital (embodied, objectified and institutionalized) and empowerment (psychological, social, and economic). The content validity of the questionnaire was confirmed by experts' opinions. Also, based on the Average Variance Extracted (0.514> AVE< 0.663) and Composite Reliability (0.808> CR< 0.966), the questionnaire had a convergent validity and appropriate reliability. SPSS16 and Smart PLS2 software were used to analyze the data. Results of the research showed that cultural capital had a significant impact on the psychological, social, and economic empowerment level of the members of the rural production cooperatives. According to the results, it is recommended that, by careful planning, sufficient benefits be gained from the potential of cultural capital in the future development policies of rural production cooperatives, so that an effective, though small, step can be taken toward development of the aforementioned cooperatives.

Due to problems with on-site irrigation channels, such as occupying a high level of the land, a lack of suitable loan materials, and the possibility of dealing with multiple complications, the use of prefabricated channels is one of the most competitive options available for the  existing channels. From the theoretical point of view, the most effective hydraulic cross-section for the coated channels in which smooth water flows is the semicircular section. Nevertheless, in terms of implementation, the use of the semicircular cross-section is generally limited to the reinforced concrete channel. One of the important issues in outdoor hydraulic engineering is having sufficient knowledge about the amount of hydraulic resistance against the flow. The estimation of hydraulic resistance of the flow in open channels has always faced a serious challenge because of the presence of secondary currents and the vortex viscosity. The determination of the contribution of flow pipes in the bed and wall is faced with errors due to the effects of the walls on the maximum velocity position. Accurate prediction of boundary shear stress distributions in the open-channel flow is crucial in many engineering problems, such as channel design, the balance of energy, and sedimentation. Determining the exact bed and wall shear stress is important from a theoretic and applied point of view, for example, its role in scour and sedimentation studies and designing shield conservations.

Abstract
In the present research, the behavior of 304L austenitic stainless steel in the deep drawing process has been studied at the room temperature through experimental and finite element simulation method. Magnetic method calibrated by XRD was used to measure induced-martensite. Martensite volume fraction in the various portion of the deep drawn cup under optimum Blank Holder Force (BHF) and in the rupture location was evaluated. Findings of the present study indicated that higher martensite volume fraction occurred in the flange portion in the drawn cup due to higher strain and stress concentration in this area. Also, rupture happened at the arc portion of the wall of drawn cup with higher blank diameter due to higher strain, work hardening and martensitic transformation. Both experimental and simulation results showed that maximum LDR of 2 obtained in the forming process. All experimental procedures were simulated by LS-DYNA software, employing MAT_TRIP, and experimental results were in good agreement with the FE simulation.

Small and medium enterprises are the main place of growth, entrepreneurship, employment, innovation, and risk taking. One of the basic ways to upgrade the competitiveness of these industries is to improve the status of technological innovation. Therefore, in view of the specific characteristics of these industries, identifying and upgrading the status of enablers can be very effective and promising in order to succeed in improving technological innovation. Thus, the purpose of this research is to present a structural model of the technological innovation enablers in the small and medium industries. In this research, after studying theoretical foundations of research and experts’ views, 8 dimensions and 32 related components were identified as technological innovation enablers. In the next step, using structural-interpretive modeling, relations between dimensions of the enablers of technological innovation were determined, and by leveling them the research model was drawn. The results showed that the dimensions of "technological factors", "knowledge management", and "external links" respectively have the highest priority in achieving technological innovation in the small and medium enterprises. The presented model in this research, while offering the dimensions and components of the technological innovation enablers and their priorities, can be used as a systematic and integrated native model for long-term promotion of the technological innovation level in the small and medium enterprises.

Premature ovarian failure is a syndrome causing amenorrhea, infertility, and increases gonadotropin levels before age 40. The use of chemotherapy drugs can be one of the reasons that lead to this disorder. The purpose of this study was to evaluate the presence of germ cells markers in mice model of premature ovarian failure following chemotherapy drugs.

In this study, 24 mature female mice were used to create a premature ovarian failure model, different amount of cyclophosphamide and busulfan were applied (experimental groups 1 to 5). Bodyweight change, vaginal smear, morphological alternation of ovarian tissue in both experimental and control (without treatment) groups were evaluated and for the best model, hormonal evaluation (FSH, E2), and expression of germline markers (Oct4, Dazl) were examined.

Since, in the second group estrus cycle disorder, the significant decrease in weight and ovarian reserve (p˂0.05) were observed, compared to the control group, so this group was chosen as the best model. An increase in FSH level and reduction in estradiol level in the second group, compared with the control group (p˂0.05), confirmed creation of the POF model. Also, genes expression of Oct-4 and Dazl showed an increase (p˂0.05) in the second group compared with the control one.

The presence of germ cells markers in a mouse model of premature ovarian failure following the use of chemotherapy drugs can be a new hope in the treatment of infertility in cancer patients after chemotherapy.

The purpose of the present study was to investigate the role of a blog-based English writing course in promoting the learning independence of Iranian learners.

In this regard, using a mixed research approach, this study examined the impact of a blog-based English writing course on learners' learning independence, defined in this study as self-initiation and self-regulation of learning. Gave. For the purpose of this study, students in control group (n = 21) were trained based on common writing teaching in class and students in experimental group (n = 25) were used blogging in addition to common writing teaching. . In order to collect data, the questionnaire of student independence was used as pre-test and post-test.

The results of the qualitative and quantitative data indicate that the blog-based writing period has been effective in promoting learner independence in general, and in promoting their self-regulation in particular. More precisely, the results of the quantitative data indicated that blog-based teaching had a significant impact on learner independence as a whole.