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Aims: Manual tasks and load carrying and handling are the most important tasks in a sofa making workshop. Evaluation of these types of tasks is very important for identifying the health risks to which workers are exposed. The aim of this study was the ergonomic evaluation of occupational tasks in a sofa making workshop based on KIM and presentation of corrective actions.
Instruments and Methods: The present descriptive cross-sectional study was conducted in a sofa making workshop in Ardabil in 2017. All tasks of the sofa making workers (n=22) were examined, among which 7 main tasks were identified. The identified tasks were analyzed, using KLM-MHO and KLM-LHC methods. Manual tasks and load lifting and carrying tasks were evaluated, scored, and checked out, using EXCELL 2010.
Findings: Among the tasks examined, the tasks of woodcarving, preparation for coloring, and sofa dressing showed the highest final score (Risk Grade 4), followed by jointing wood parts with glue and coloring (Risk Grade 3). Most items with high workload were related to grips status, repetitive movement in the hand-finger area, position and repetitive movements of the joints at the end of motion range, and curved forward trunk posture.
Conclusion: In carving, preparation for coloring, and dressing tasks, the amount of workload is high. In jointing wood parts with glue and coloring tasks, the amount of workload increases dramatically. And, in designing layout on wood and cutting tasks, the amount of load increases.

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Statement Problem: To achieve sustainable development of urban areas, one of the key aspects is the possibility of monitoring the quality of life in all its dimensions, namely social, economic and environmental dimensions, which requires the implementation of tools that can identify the main dimensions of human satisfaction.             
Aim: The main purpose of this study is to evaluate the well-being and quality of life of people in the city of Tabriz based on the basic components with reference to the theory of "age" capabilities.
Methods: Descriptive analysis was performed using a questionnaire. The statistical population of the study was the population of Tabriz, whose sample size was 382 based on the Cochran's formula. For data analysis, structural equations were used by exploratory method and second-order factor analysis using Amos and Spss software.                                                                              
   Results: The results showed that the main determinants of mental well-being in the field of personal perceptions, economic conditions, security, environmental quality and educational opportunities. Welfare conditions in regions 7, 9 and 6 are very low, while in contrast, 2, 1 and 5 showed the highest levels of welfare among the regions of Tabriz. By focusing on area 7, it can be seen. This area shows the lowest values ​​for the three main dimensions of the four main dimensions of welfare, which seems to be significant.     
Conclusion: As a result, in order for the city residents to reach the desired level of welfare and quality of life, double attention should be paid.       

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Research subject:
Zinc is one of the most dangerous organic components in industrial wastewaters, which pollutes the environment as a result of human activities and various industrial operations. In the present study, the adsorbent prepared from Gracilaria Corticata algae was used for the first time to recover and remove heavy metal zinc and equilibrium study of the process were done.
Research approach:
In the current work, the effect of important parameters such as initial pH of solution, adsorbent dosage and contact time were investigated on the adsorption efficiency of the process. Additionally, Langmuir and Freundlich two-parameter adsorption isotherm models were used to model the equilibrium of zinc adsorption.
Main results:
The results showed that according to the calculated correlation coefficient, Freundlich isotherm was better than the Langmuir in fitting the experimental data. The highest point-to-point correlation coefficient for adsorbent percentage was achieved at 3 g/ml adsorbent dosage with contact time of min 360 and pH=7 and the lowest one was at 4 g/ml adsorbent dose with contact time of min PH=360 and 7. However, the highest adsorption rate was observed for the adsorbent dosage of 4 g/ml with contact time of 420 min at pH=9 and the lowest adsorption percentage was achieved at the adsorbent dosage of 2 g/ml with contact time of 300 min and pH=5. The maximum and minimum adsorption percentages were 76.88 mg/g and 49.25 mg/g, respectively

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Research subject: In this research we studied the anti-corrosion properties of epoxy coating containing anti-corrosion pigment zinc phosphate with hydrophobic nano silica with different percentage also for determine the optimal conditions for preparation of nanocomposite Taguchi experimental design method was used.
 
Research approach: Anti-corrosion properties of epoxy coating under the influence of very important factors such as the percentage of nano silica, anticorrosive pigment and pigment to resin ratio according to model L9 taguchi method was studied and analyzed. Anti-corrosion properties of epoxy coatings were studied by electrochemical impedance spectroscopy test (EIS) in 3/5% NaCl aqueous solution and salt fog test (salt spray). To investigate the distribution of nano silica particles in epoxy resin were analyzed by transmion electron microscope (TEM) and scanning electron microscope (SEM). The results show that using from zinc phosphate and nano-silica was able to improve the corrosion resistances.
 
Main results:Results shows that addition of zinc phosphate and nano silica to epoxy resin caused a decrease in number of blisters and corrosion products after exposure to corrosion test based on the results in Nyquist and Bode plots, also the similarity in results was observed for the epoxy coating loaded according to the optimum conditions with 8% zinc phosphate, 3% nano silica and pigment to resin ratio of one according to salt spary. The significance levels of the experimental parameters, which indicate how the factors affect the compressive addition of zinc phosphate and nano silica to epoxy resin, were determined by using variance (Anova) method.

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MeHg and total mercury concentrations were determined in the muscle tissues of four fish species (Cyprinus carpio, Rutilus frisii, Carassius auratus and Esox lucius) from Anzali wetland (Guilan, Iran). Fish with the highest amount of MeHg was selected to determine the thermodynamic parameters of MeHg extraction. The extractions process was performed in the range of temperatures 331.15 to 367.15 K and at atmospheric pressure. Results show the extraction of MeHg from SH groups of sulfhydryl proteins was an endothermic process with a positive value for entropy and Gibbs free energy changes at the room temperature. Significant difference was found between MeHg content at T=367.15 K and other temperatures. Correlation coefficients results showed that the mercury concentration in muscle tissue was significantly related to the length and weight of fish (p≤0.01). Also, thermodynamic parameters of methylmercury extractions had significant correlation (p≤0.05) with length and weight of the six fish specimen.

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The present study investigateeffect of different dietary macronutrient composition on fatty acids profile, body fat and pancreatic lipase enzyme activity in Siberian sturgeon. A group of 180 Siberian sturgeons juvenile (initial weight, 30 ± 5 g) were used in this experiment and fed on four isoenergetic diets. Diets were named LP-St (low protein and high carbohydrate: lipid ratio), HP-St (high protein and high carbohydrate: lipid ratio), LP-L (low protein and low carbohydrate: lipid ratio) and HP-L (high protein and low carbohydrate: lipid ratio). Fish were fed apparent satiety for 10 weeks. The samples were obtained from body carcass and juveniles intestine. In this study, the same level of fish oil and sunflower oil were used as a source of diet lipid content. The HUFAs content in HP-St and LP-L diets were showed highest and lowest value, respectively. The results showed the body fatty acidsprofiles was significantly affected by fatty acids composition in diets (P < 0.5). Diets with high protein and high carbohydrates concentrated SFA and MUFA in fish carcass. Moreover, the PUFA content increased in sturgeon fed with high lipid diet. However,the results of this study showed the body lipid content wasaffected by total lipid content of diet and lipase activity decreased in Siberian sturgeon intestine fed on LP-L diet with lowest HUFA.

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Gas sensitive metal oxide layers used in fabrication of resistive gas sensors are prepared by different deposition techniques. The technical data reported on some basic and practically important specifications of these devices, although fabricated based on the same gas sensitive oxide, are anomalously different. The influence of the fabrication technique used for the deposition of the gas sensitive layer on determination of the significant specifications of the transient response of a resistive gas sensor is experimentally investigated for the first time. ZnO and SnO2 layers were prepared by LPCVD, PVD, EPD and powder pressing techniques. Prototype gas sensors based on these layers were fabricated. The transient responses of these devices to a step change in the composition of the surrounding atmosphere were recorded and compared. It was shown that the thickness, porosity and pore micro-structure of the gas sensitive layer are the most effective parameters in determination of the transient response. The relationship between these parameters and the temporal variation of the electrical conductivity of the gas sensitive layer was qualitatively analyzed. Oxide layers of higher porosity resulted in gas sensors of faster response, but response time increased with the thickness of these gas sensitive layers. The sensors produced by EPD technique demonstrated the fastest responses while those produced by CVD were the slowest among the samples investigated.

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In this study a total of 37 syrphid species belonging to 25 genera were identified in Mazandaran province, northern Iran. One genus and species, Brachyopa (Brachyopa) bicolor (Fallén, 1817) and two species Heringia (Neocnemodon) latitarsis (Egger, 1865) and Cheilosia soror (Zetterstedt, 1843) are recorded for the first time from Iran. In addition, saproxylic syrphids of Iran are briefly discussed.

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One of the effective plant disease management strategies is based on the employment of resistance inducers. In the present study, to assay, the effects of Salicylic acid (chemical inducer) and Piriformospora indica (biological inducer) on wheat powdery mildew (Blumeria graminnis f. sp. tritici), the expression rate of Non-expresser of pathogenesis-related genes1 (NPR1) genewas evaluated using qPCR. For this purpose, Falat and Tajan cultivars were selected as susceptible and resistant genotypes to powdery mildew, respectively. To evaluate the rate of gene expression, the P. indica colonized Falat along with mock plants were inoculated with Powdery mildew. In another experiment, Falat treated with SA and control plants were inoculated with Powdery mildew 48 h after treatment with SA. Gene expression was assayed in Falat compared with resistant cv. Tajan. Sampling was carried out at 0, 6, 12, 24 and 48 hours after infection. Comparisons of gene expression patterns showed that after infection, the expression levels of NPR1 increased in induced and non-induced Falat and Tajan cultivars. The maximum gene expression levels were observed at 24 hours post infection. But the expression levels of the gene at this timewere much higher in induced treatments compared with control. The current study showed that NPR1 can be involved in resistance strategy. Thus, using NPR1 gene as a desired gene in genetic engineering for increasing the potential of plant resistance to pathogens can be considered. Moreover, the high response of NPR1 gene in induced plants indicated that both SA and P. indica play a critical role in inducing resistance.

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The effect of dietary composition and starvation on growth and plasma metabolites in rainbow trout of 14 g average initial weight was investigated. A group of 240 trout juveniles were distributed in 12 of 150 L tanks. The experiment was performed in a 2*2 factorial design with 2 lipid levels (10 and 18%) and 2 feeding conditions (feeding and starvation) with 4 treatments each with 3 replicates. The fish were fed on diet 1 (lipid 10%, carbohydrate 29%) and diet 2 (lipid 18%, carbohydrate 19%) with the same protein level (47%) and energy. The juveniles were fed to apparent satiation for 3 weeks, followed by starving for 2 weeks and then refed for 3 weeks. The biometery and plasma biochemical parameters were analysed in the day of 21 (end of 3 weeks feeding), 35 (after 2 weeks starvation) and 60 (end of 3 weeks refeeding). Based on the result, the best growth performance in the fish occurred in diet with 10% lipid in control group (feeding group) and no compensatory growth occurred in this treatmennt after 2 weeks starvation. Moreover, the result of body composition showed the starvation and diet composition had more effect on body lipid than body protein and body lipid content decreased by starvation. The starvation and diet composition did not have any significant effect on cholesterol and triglyceride, but they induced decreasing plasma glucose level in the trout.  

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Over the past decades, Enterprise Resource Planning systems (ERP) have become one of the most important developments in the use of information technology. ERP implementation projects which involve large groups of organization's resources are usually large and complex. There are evidences of high failure in ERP projects. Therefore, attention to ERP system success or failure factors is critical. Governance is one of factors that had been considered as influencing factors of ERP success in some researches, so this study intends to investigate direct relation between IT governance practice and ERP system success. This paper used an adapted model from the widely used Delone and McLean's model of IS success for assessing ERP value. With considering the relationship between governance aspects and the variable of adopted IS success model, the conceptual model and assumptions of this study were developed. Data gathered by questionnaire and based on responses from MAPNA group companies' members. Then structural equation modeling and Smart PLS software were used for analyzing survey data. According to obtained results, governance has a substantial relation with ERP system success.

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The book One Thousand and One Nights is among the most important ancient books of fable and parable which has been of interest for a long time and various translation of which exist. There are two main translations of the book to Persian, the first by Abdollatif Tasuji and the second by Ebrahim Eghlidi. Comparing the two translations reveals difference in the opening and closing of the book, story-telling techniques, orientation of though and faith, and the sequence and title of the stories. The choice of original principal texts the translators based their translations on can be considered as the most important reason for such differences. The original principal text for Tasuji was apparently Bulaq’s 1^st ed., while Eghlidi based on his translation of Bualq’s 2^nd ed., Calcutta’s ed., and Burslaw’s ed. Eghlidi also drew on the French and English translations of One Thousand and One Nights. Another reason for such a difference was the different approach of the translators towards the stories. Tasuji has tried to include the main plot of the stories and has not paid much attention to the setting in his translation, while Eghlidi has paid close attention to descriptions in his translation, resulting in lengthier stories and differences with Tasuji’s translation.

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Aims: In this study, gelatin was extracted from Siberian sturgeon waste and used in film making.
Materials and Methods: Gelatin was extracted using NaOH and HCl. After evaluating the extracted gelatin properties (bloom grade, pH, zeta test, melting and setting temperature and time), the edible film was prepared by using glycerol.
Findings: The results showed that the extraction efficiency of the gelatin was %20.06. The protein content, pH, degree of gel hardness, setting and melting temperature and time were 79.2 ± 0.6%, 4, 160.2 ± 0.4 g, 13.1 ± 0.2 ° C in 180.3 ± 0.5 seconds and 19.33 ± 0.5 ° C in 140.66 ± 0.5 seconds, respectively. Zeta potential indicated a positive surface charge in gelatin. The thickness, moisture, solubility, tensile strength, tensile strength and permeability tensile strengths properties of gelatin film reported 0.05 mm, %10.2 ± 1.5, %79 ± 3.7, 30.01 ± 0.7 MPa, %77.5 ± 3.6 and 3.5 ± 0 g mm/h mm²kpa×10^-6­, respectively. SEM images of the film showed smooth structure without cracking. Moreover, the FTIR result showed the formation of amide bands in the region of 3277.62, 1633.92, 1530.11 and 1236.49 cm^-1.
Conclusion: Due to the efficiency and properties of gelatin, and the mechanical and physical properties of the edible film, it can be used as a good candidate for the production of biodegradable films in food storage.

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In the present study, the structural and antioxidant properties of fucoidan extracted from macroalgae (Sargassum and Padina) from the Persian Gulf coast were evaluated. The fucoidan was extracted by ethanol and hot water and after calculating the extraction yield, DPPH radical scavenging activity, ferric reducing antioxidant power (FRAP), scanning electron microscopy (SEM), and its monosaccharides by HPLC method were examined. The yield of fucoidan in Sargassum (4.2 ± 0.00%) was higher than Padina (2.98 ± 0.28%) (P < 0.05). The IC50 of DPPH free radical scavenging in fucoidan extracted from Sargassum and Padina were 0.1 and 0.14 mg/ ml, respectively, which were higher than BHT as a commercial antioxidant (P < 0.05). The rate of FRAP in both samples increased with an increase in the concentration of fucoidan. The SEM results showed that fucoidan from both macroalgae had strong structural cohesion and irregular surfaces, but Padina had more surface protrusions. The glucose, mannose and xylose sugars in different amounts were detected by the HPLC method, in which the amount of glucose and xylose sugars were higher in the fucoidan derived-Sargassum (P < 0.05). According to the results of the present study, the fucoidan extracted from the Sargassum and Padina can be a good alternative to an industrial antioxidant in food

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Double layer ZnO/SnO2 thin film resistive gas sensors were fabricated by successive PVD of those oxides onto porcelain substrates. The metallic contacts were provided by electron beam evaporation of platinum onto substrates prior to deposition of the gas sensitive layers. Deposits were thermally annealed at different temperatures. It was shown that the activation energy of electrical conduction in the double layer depends on the annealing temperature. Higher annealing temperatures result in larger activation energies. The sensitivity of the double layer devices to ethanol vapor was measured and compared to that of single layer SnO2 sensors fabricated at similar conditions. It was shown for the first time that the gas sensitivity of ZnO/SnO2 thin film gas sensors can be adjusted by controlling parameters of the thermal annealing process.

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The cotton bollworm, Helicoverpa armigera (Hübner), is a destructive pest feeding on a diverse array of host plants. We studied the demographic parameters of H. armigera on artificial diets prepared from seeds of 10 corn Zea mays L. hybrids (KSC301, KSC403, KSC540, KSC600, KSC604, KSC704, KSC711, Maxima, NS770, and ZP677) using the age-stage, two-sex life table procedure. The results revealed that except for the incubation period, the Z. mays hybrids-mediated artificial diets significantly affected the length of the other immature stages. They also influenced the adult longevity, adult pre-oviposition period (APOP), total pre-oviposition period (TPOP), and oviposition days of H. armigera. Furthermore, the total fecundity of H. armigera was affected by Z. mays hybrids. Accordingly, the females reared on KSC711 with 503.31 eggs had the highest total fecundity. The highest net reproductive rate (R₀) (88.41 eggs/individual), the intrinsic rate of increase (r) (0.109 day^-1), and finite rate of increase (λ) (1.115 day^-1) were observed on KSC711. Our results provided valuable information regarding the life cycle of H. armigera on an artificial diet substrate prepared from different Z. mays hybrids. It was also revealed that although H. armigera had no significant differences in life table parameters on most hybrids, some of them, such as KSC711, were very susceptible to damage. One of the issues that emerged from these findings is the possibility of using some hybrids, e.g., KSC711, in the preparation of semi-artificial diets for this pest.