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 The effect of vitamins C and E in enhancing the shelf life of the algal paste during 12 weeks cold storage (4^°C) was assessed. The microalga, Nannochloropsis oculata, was grown in Conway media under 24ºC temperature, 25ppt salinity, and continuous light intensity of 1000- 2000 lux with) and harvested at the logarithmic phase by cream separator  centrifugation at 12000 rpm in the form of paste. The algal cell viability was determined by Evans blue dye. The algal paste samples were treated with different vitamin treatments, including: vitamin C and E (0.1%w/w), and an equal proportions of mixed vitamin E and C, and then stored in refrigerator for two months. The results showed that the 95% cell viability of vitamin C treated paste was significantly higher than the control group (p>0.05).  FFA and pH in vitamin C treated group was lower than the control treatment. The comparsion of between different treatments during the storage period indicating that it contains vit E had a slower increase than the other treatments in during the storage the time. Overall, it was demonstrated that vitamins functioned as suitable preservatives for the microalgal paste in cold storage (4 ^°C).

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The yield and quality of oil extracted from common kilka (Clupeonella cultriventris caspia) through a novel extraction technique with supercritical fluid CO₂ and also ethanol co-solvent extraction at 30 MPa pressure and 58°C temperature of for 90 min were compared. Addition of ethanol co-solvent significantly increased the total oil yield (p˂0.05). Moreover, the qualitative characteristics of the extracted oil with ethanol modified the solvent acidity, peroxide and TBA index considerably less than the oil extracted by supercritical fluid CO₂. Fatty acid composition of the oil extracted with the two extraction methods showed there was no significant difference in SFA and PUFA fatty acids (p˃ 0.05). In general, the two methods used in this work didn’t considerably affect the fatty acid composition of the extracted oil.

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The estimation of the amounts of precipitation in Qara-sou Drainage Basin is based on the observational data of 21 precipitation gauging stations in the area of the study. The correlation of above named elements with the data derived from the regional geographic factors indicates that using the regional data one can construct the final seasonal and annual precipitation models. The multiple correlation coefficients of 69 up to 82% in interpretation of regional geographical factors in estimating the annual and seasonal precipitation of basin is a good sign of the importance of processing statistical data in climatic studies and the use of geo-climate data. In the present study by using the mean of annual and seasonal precipitation records of the basin stations, the relation of the geographical parameters including the geographical latitude and longitude, the height above sea level, the distance from the mountain and the sea is modeled by multiple variables correlations method and precipitation rate is estimated.

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The extraction of hydrocolloids from seaweeds is associated with production of secondary metabolites during pretreatment step. In this study, the antioxidant properties were evaluated for secondary metabolites from brown seaweed S. angustifolium. The crude extract obtained by 80% ethanol for four hours and then partitioned using hexane, chloroform, ethyl acetate and water. The extraction yield was found to be 4% for crude extract and varied between 2.8-43% for fractions. The evaluation of antioxidant properties revealed a successful solvent fractionation in portioning antioxidant compounds. Among various fractions, ethyl acetate exhibited the highest activity in DPPH radical scavenging (75.78%), ABTS radical scavenging (88.92%), reducing power (67.54%) and total antioxidant (0.34 Abs) capacities. The highest amount of phenolic contents was found in ethyl acetate fraction (277.86 mg/ TA in extract) while the lowest amount was in aqueous fraction (21.36 mg/ TA in extract). The highest correlation (R² = 0.88) was observed between total phenolic content and total antioxidant activity. Overall, the results of current study show that ethanol extract of S. angustifolium contains major bioactive compounds suggesting its potential application in food industry as a natural antioxidant.  

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For quality assessment of coated fish fillet with sodium alginate containing inulin, fish fillet were coated with sodium alginate containing 10, 20, 30 and 40 percent inulin using two methods, including dipping and vacuum impregnation. Then fructan were determinate in coated samples. The samples including 20 and 40% inulin in vacuum impregnation and dipping respectively were selected for further study based on their higher fructan content. Therefore, the chemical and microbial changes of selected samples were investigated during 16 days, with 4 days interval in refrigerated condition (4⁰C). Results showed that the fructan content had not changed significantly (p≥0/05) during the storage period. Peroxide in the middle of storage period was increased and then decreased significantly (p≥0/05) by the end of storage time. Quality indexes such as pH, thiobarbitoric acid (TBA), total volatile basic nitrogen (TVB-N), total plate count bacteria, psychotropic bacteria and peroxide increased significantly (p≥0/05) along time. In all of the samples, TBA at the end of 12 day storage, TVB-N at the end of 16 day storage, anaerobic bacteria count and pseudomonas bacteria count at the end of 12 day storage were more than acceptable limit of fresh fish. In the conclusion, fructan of coated fish fillet had not changed significantly during refrigerated storage, as well as shelf life of coated fish fillet by dipping and vacuum impregnation in refrigerated condition storage (4⁰C) was less than 12 days.

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Aims: The psychological capital is one of the important indicators of positive psychology and it has positive outcomes for students. The present research aimed at studying the status of psychological capital of students in Kurdistan University of Medical Sciences and its related factors.
Instruments and Methods: The present descriptive-analytical cross sectional research was conducted among 384 students in Kurdistan University of Medical Sciences in 2016. The samples were selected by simple random sampling method.  Luthans et al.’s psychological capital questionnaire was employed for the data collection and data analysis was performed, using SPSS 22 software by descriptive statistics (mean and standard deviation) and inferential statistics (Mann-Whitney U test and Kruskal-Wallis test).
Findings: A total of 150 participants (39.2%) were male and 233 (60.8%) were female; 351 participants (91.6%) were single and 32 (8.4%) were married. The mean score of the psychological capital of students was 89.09±9.98. Minimum and maximum means were measured for Optimism and Self-efficacy. There was a significant relationship between sex, field of study, academic degree, and faculty place with psychological capital (p<0.05).
Conclusion: Factors such as sex, field of study, academic degree, and faculty place are effective in the psychological capital of students.

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The digger wasps fauna (Hymenoptera: Apoidea) of Fars province in southern Iran was partly investigated. Members of three families: Pemphredonidae (5 species of 3 genera), Psenidae (3 species of 2 genera) and Philanthidae (2 species of 2 genera) were collected and documented. The following eight species: Diodontus brevilabris de Beaumont, 1967, D. crassicornis Gribodo, 1894, D. insidiosus Spooner, 1938, Passaloecus corniger Shuckard, 1837, Pemphredon inornata Say, 1824, Mimesa punctipleuris (Gussakovskij, 1937), Psenulus laevigatus (Schenck, 1857) and Cerceris spinifera haladai K. Schmidt, 2000, are new to the Iranian wasp fauna. In addition, two species: Psenulus schencki (Tournier, 1889) and Philanthus variegatus Spinola, 1839, are new records for Fars province. For each species, we include available distributional data as well as comments on its taxonomy and geographical distribution.

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Aims: Acinetobacter baumannii is an opportunistic pathogen that is resistant to many antibiotics including beta-lactams. Production of β-lactamases is the main mechanism of β-lactam resistance in A. baumannii strains. The aim of this study was to determine the frequency of blaTEM and blaVEB genes in clinical isolates of A. baumannii and the relationship between the antibiotic resistance and the presence of ESBL genes in strains isolated from burn wound infection in Isfahan.
Materials & Methods: In this study, 123 MDR A. baumannii strains were isolated from burn wound infection. After antibiotic resistance evaluation using the Kirby-Bauer disc-diffusion method, all the isolates were evaluated with polymerase chain reaction (PCR) technique to detect ESBL genes, followed by statistical analysis by the end.
Findings: Out of 123 A. baumannii isolates, 77 (62.60%) strains were ESBL positive according to the PCR results. The frequency of blaTEM and blaVEB genes was 52 (42.3%) and 67 (54.5%), respectively. There was a significant relationship between the antibiotic resistance and the presence of ESBL genes (blaTEM and blaVEB) in A. baumannii strains.
Conclusion: The high prevalence of blaTEM and blaVEB genes in A. baumannii strains found in this study is the major concern about burn wound infections in Isfahan and Iran because of the complexity in treating infections caused by these strains. This study results highlighted the need for infection control measures to prevent the spread of resistant isolates and ESBL genes, especially in burn hospitals.

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In this study, we attempt to investigate the representation of sexuality in the images of English language teaching books (Four Corners (2) – American English File (2) – Interchange (2)) based on visual - social semiotics according to Halliday’s Functional linguistics and clearly followed by Kress and Van Leeuwen 2006 (1996).  Creating text, as an example image, is a discoursal and as a result a social action. This social action on textbooks which have been written for non-English language learners works at higher level. It works in intercultural level. As a result, there is always a constant problem: Is it possible that the central culture (English language society) creates discourse via the texts of the textbooks in which non-English speakers are considered strangers and they themselves are considered natural and familiar? This research via investigating images, texts , verbal titles and the margin of those images searches how English language teaching books portray English culture as evident, natural and inevitable and others as foreigners who only lose their alterity if they are attracted by this culture. The main goal of this research is to analyze English language teaching books and investigate their different discoursal, social and cultural outputs .Also this research tries to investigate the role of images in intercultural discoursal context. Cultural differences and their reflection in English language teaching textbooks with ideological outputs of images and modality in the images of textbooks are other marginal goals of this research.  

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Anxiety in foreign language class is one of the variables which has main effect in language learning. Therefore researchers in language teaching are always interested in this factor. This study investigates the  relation  between achievement motivation, emotional  intelligence and foreign  language classroom  anxiety, in French  students  of  Ferdowsi  University of Mashhad  and relation of age and gender with these variables. For this purpose, Baron Emotional intelligence questionnaire, Hermans achievement motivation test, foreign language classroom anxiety test and Spielberger's State-Trait Anxiety scale were presented to 87 French students. To analyze research data, T test and Pearson correlation test were used. The results indicate that there is a negative significant correlation between foreign language classroom anxiety and achievement motivation (p= -0/001) in parallel with foreign language classroom anxiety and emotional intelligence (p= -0/007). As a result, it can be claimed that higher emotional intelligence and achievement motivation follow language classroom anxiety decrease.

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Proverbs are amongst the treasures that play an important role both in representing and internalizing religious identity, therefore, it is essential to analyze and scrutinize these proverbs in order to better understand religious culture of people. In the present research, the cognitive components of religious identity have been investigated through content analysis method in Bakhtiari's proverbs to show how the cognitive and received components of these components are reflected in the counterexamples and what is the function of this cognition? The issues of theology, resurrection, prophet hood, and Imamah, the practical commandments of religion, the Qur'an, religious places, and Qur'anic characters are reflected as the cognitive components of religious identity in the Bakhtiari expressions amongst which the most frequent encompasses the theology. Religious identity in these proverbs has both the psychological and socio- cognitive function. Thus, Individuals relying on God and the principles of prophecy and imamah retrieve the hope in their life and by reminding the resurrection and the glory of God and reform the ethical and social dilemmas.

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By reviewing the current methodological topics in cultural studies, yet some kinds of theory/method dualisms are distinguishable. Going beyond these dualisms, requires emphasizing the importance of qualitative researches in cultural studies. In this article, we try to discuss the problem, which is focused on the dualistic contentions in the methodology of sociology and cultural studies. Next, with respect to the politics of theory and politics of method in cultural studies, we try to introduce an analytical approach, which helps us out to move beyond these dualistic quarrels. This analytical approach is well-known as “conjunctural analysis”. In this article, after detailed presenting this approach, and its conceptual origins that developed by Machiavelli, Marx, Lenin, Gramsci and Althusser, we argue how this approach can be applied in cultural studies. This argument reminds us that there is an intensive relationship between decentering method/theory dualism and possibilities of a cultural study as interventionist and contextual knowledge that is sensitive to history.   

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Aims: Skipjack tuna has the highest level of catch rate among tuna all over the world. Its head contains about 64% protein. Many Protein Hydrolysates and peptides obtained from various marine sources have a high antioxidant power. The aim of this study was to investigate the antioxidant activity of Protein Hydrolysate in Skipjack tuna head.
Materials & Methods: In this experimental study, 30 Skipjack tunas were investigated. At first, the amount of different compounds (protein, fat, ash, and moisture) was evaluated in the raw material; then, the hydrolysis process was performed by Alcalase enzyme and the hydrolysis degree of the protein hydrolysate was evaluated at different times. The antioxidant activity of the protein hydrolysate mixture was measured by DPPH radical scavenging activity, iron revival power, and ABTS radical inhibitory activity. For data analysis, the analytical tests were used.
Findings: The main part of the fish head was protein and it had high levels of ash. The degree of hydrolysis increased with increasing time and was it significant at 15, 60, and 120 minutes (p<0.05), but not significant at 120 and 240 minutes (p<0.05). DPPH radical scavenging activity increased with increasing hydrolysis time and there was a significant difference in all samples obtained from different times (p<0.05). The iron reduction capacity of the protein hydrolysate samples increased with increasing the hydrolysis time, and the highest amount was at 240 minute. The samples obtained from different times had a significant difference in iron reduction capacity (p<0.05). Increasing the concentration of protein hydrolysate increased inhibitory activity (p<0.05).
Conclusion: Protein hydrolysate in Skipjack tuna head has a high antioxidant activity and can be used in food products to increase oxidation stability.

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Considering the growing competition and increasing attention toward productivity and cost reduction among firms, quick access to pertinent information has become a competitive advantage for them. Relying on this up to date information, they can reduce their costs by decreasing their inventory, speeding up material flow, taking consumer view in to account etc. in this study we investigate the relationship between enterprise resource planning (ERP) system and supply chain management where Oracle Purchasing Module implemented in Zob Ahan enterprise. Statistical population of the study is operational employees of Zob Ahan enterprise in Isfahan and the sampling method is simple stochastic. Required data is gathered through a questionnaire and we use SPSS and SmartPLS in order to analyze them. Findings of this research indicate that ERP Components including Integration, Material management, Production planning, and controlling have positive impact on supply chain management.

 

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