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Abstract The present Research as” Design Business Agility Dynamic Model in manufacturing organization with dynamic systems approach”was performed . Initially the literature review discussed. The data gathered in this stage provided us with the possibility to present a conceptual framework for the study. Subsequently, through interviewing with experts, some indices for evaluating the variables in the model were identified. On the following stage, a questionnaire was developed. The questionnaire included 116 items, based on a 7-point Likert scale. After determining the validity and reliability of the results of the research revealed that agility capability, agility outcomes, and the internal supply chain of the organizations were less affected by environmental factors than agility enablers. The environmental drives by means of agility enablers, supply chain processes, agility capabilities and agility outcomes influence organizations Then, design Agility Dynamic Model and evaluated effect of changes in environmental drives and Policy of executives on organizational agility results After determining the validity and reliability of the results of the research revealed that agility capability, agility outcomes, and the internal supply chain of the organizations were less affected by environmental factors than agility enablers. The environmental drives by means of agility enablers, supply chain processes, agility capabilities and agility outcomes influence organizations Then, design Agility Dynamic Model and evaluated effect of changes in environmental drives and Policy of executives on organizational agility results

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Abstract The present Research as” Design Business Agility Dynamic Model in manufacturing organization with dynamic systems approach”was performed . Initially the literature review discussed. The data gathered in this stage provided us with the possibility to present a conceptual framework for the study. Subsequently, through interviewing with experts, some indices for evaluating the variables in the model were identified. On the following stage, a questionnaire was developed. The questionnaire included 116 items, based on a 7-point Likert scale. After determining the validity and reliability of the results of the research revealed that agility capability, agility outcomes, and the internal supply chain of the organizations were less affected by environmental factors than agility enablers. The environmental drives by means of agility enablers, supply chain processes, agility capabilities and agility outcomes influence organizations Then, design Agility Dynamic Model and evaluated effect of changes in environmental drives and Policy of executives on organizational agility results The environmental drives by means of agility enablers, supply chain processes, agility capabilities and agility outcomes influence organizations Then, design Agility Dynamic Model and evaluated effect of changes in environmental drives and Policy of executives on organizational agility resultsوThen, design Agility Dynamic Model and evaluated effect of changes in environmental drives and Policy of executives on organizational agility results

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To compare the seed characteristics in accessions of Atriplex canescens under exclosure and non-exclosure conditions, two even-aged sites were selected with an area of 400 ha as the exclosure and 1000 ha as non-exclosure area. To conduct the study, 30 species were randomly selected in autumn 2009 in reference area of the sites and seeds were collected. Some important seed characteristics were studied in the laboratory. Data analysis was conducted using SPSS 17 software and mean comparisons were performed by Duncan's Multiple Range Tests. Results showed that the winged seeds did not germinate under all studied treatments in both sites. Moreover, maximum seed germination was recorded for the seeds soaked in cold water for 24 hours and placed in the shade for 48 hours. According to the results of the independent t-test, no significant differences were observed for germination percentage, germination rate, and vigor index in both sites at both 1 and 5% probability levels. In other words, the seeds collected from the exclosure and non-exclosure areas were similar in terms of the mentioned characteristics. However, seed yield, 1000-seed weight and seed moisture content showed significant differences at 1% probability level with higher amount in exclosure area.

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The control of bacterial diseases of fish has always been one of the most important problems of aquaculteriets in recent years. One of these problems is bacterial resistance. Using antibiotics can cause problems for consumers. Therefore, the use of new antimicrobial agents with minimal complications is common. In the present study, using the acid-thermal method, the bentonite structure was modified and the chitosan and bentonite hybrids were modified in the stage of development. The structure of the compounds was studied using the Infrared Fourier Transform Spectrometry (FTIR), Surface Electron Scanning Microscopy (FE-SEM) and X-ray diffraction spectroscopy (EDX). Antimicrobial activity of two types of modified bentonite on gram negative bacterium Aeromonas hydrophila was studied in vitro using two methods of disk diffusion and microdilution. The results of the disc diffusion method showed that the antimicrobial compounds produced had antibacterial properties in experimental conditions against the Aeromonas hydrophilia bacteria. Antimicrobial activity (MIC and MBC) was determined using microdilution and clonal counting in Agar culture medium. The results showed that the modified compound with the acidic method had MBC of 28.57 and 14.28 mg / L for Aeromonas hydrophila bacteria in 10 minutes and 30 minutes. For chitosan and modified bentonite composite, MBC was 14.28 mg / ml for Aeromonas hydrophila bacteria in 10 and 30 minutes. The results of this study showed that modified bentonite and composite compounds have strong antimicrobial effects and can remove pathogens in laboratory conditions and can be used as new compounds to control pathogens in breeding systems.

 

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In this study two Bacillus pumilus including ToIrFT- KC806241 and ToIrMA-KC806242 were obtained from tomato fields and characterized based on phenotypic and molecular properties. Their possibility to reduce root knot disease of tomato caused by Meloidogyne javanica was evaluated. The experiments were done in lab and under pot conditions. Application of the ToIr-MA against M. javanica reduced the number of galls and eggs. Preliminary results indicated that the ToIr-MA has an ability to produce proteolytic enzymes in lab conditions. It seems that the bacterial culture filtrates can suppress egg hatching and increase juvenile's mortality, but the role of these metabolites in disease suppression needs to be investigated. Significant enhancement in root and shoot length (33%) and dry root and shoot weight (64 and 67%) was also recorded over usage of strain ToIr-MA in comparison to untreated controls. Additionally, survival of bacterial strains in rhizosphere and increases in population density were seen using root colonization assay. To our knowledge, this is the first time that such B. pumilus strain with nematicidal activity against M. javanica has been reported in Iran which may suggest to manage disease and change microbial population dynamics in the rhizosphere.  

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Two different microhabitats (cropped fields versus established date-palm farms) in two different cities in Khuzestan Province, Southwestern Iran, were sampled monthly during 2011-2012 in order to assess the role of anthropic uses of soil on the biodiversity of oribatid mites. A total of 17 species of oribatid mites belonging to 10 families and 15 genera were identified (nine species were collected from the fields and 17 species were collected from date-palm farms). Among the collected species, Scheloribates fimbriatus with 22% relative abundance and Acrotritia ardua with 19% were dominant species. The Shannon index of species diversity and equitability was used to analyze data. Species diversity of oribatid mites and equitability were significantly greater in the date-palm farms than in the cropped fields. Time of year had no significant effect on biodiversity.  

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The purpose of this study was to test the political behavior model on managers' decisions with the mediating role of organizational identity and the moderating role of organizational trust in sports organizations. The study sample was all middle managers Federations, Youth and Sports Ministry, Office of Sport and Youth Sports provinces and provincial heads of 250 people, of whom 104 subjects were randomly selected. The present study is a descriptive-correlational survey research and applied research that was conducted in the field. Data collection was through four questionnaires of political behavior (17 questions), managers' decision making (14 questions), organizational trust (12 questions) and organizational identity (16 questions).Validity and questionnaires were confirmed. Reliability was also reported through Cronbach's alpha coefficient (political behavior =0.89, managers' decision = 0.92, organizational trust =0.85 and organizational identity =0.90). SPSS software, SPSS sample power and Smart PLS were used to analysis the data. The results showed that organizational trust has a positive and significant effect on managers' decisions. Political behavior has a positive and significant effect on managers' decisions. Political behavior has a positive and significant effect on organizational identity. Organizational identity has a positive and significant effect on managers' decisions. Political behavior also has a positive and significant effect on managers' decisions through organizational identity. Finally, the results showed that organizational trust can moderate the relationship between political behavior and managers' decisions as a positive and significant effect. According to the results, it is suggested that when appointing managers, persons should be selected who care about the role and opinion of employees in organizational decisions and consider consulting in their activities.

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Aim: Many patients with chronic renal failure are prone to depression and anxiety. A self-efficacy promotion-training program can be effective in these mental disorders. Thus, the aim of this study was to investigate the effect of education based on self-efficacy theory on improvement of mental health in hemodialysis patients.
Methods: This interventional study that conducted in 2016 on 70 hemodialysis patients (35 in experimental group, 35 in control group). The data collection instruments consisted of demographic questionnaire, self-efficacy (SUPPH) and researcher-made validated and relied questionnaire of mental health (6 questions). The data were collected in two steps: before and three months after the training intervention. The educational program was performed for the experimental group in two half-hour sessions. The obtained data were analyzed by SPSS 16, Paired-test, Independent t-test, Chi-square and Mann-Whitney’s test at the significance level of α=0.05.
Findings: The groups did not differ significantly regarding the mean of mental health before the study (p=0.56). However, three months after the intervention, the mean of self-care in the field of mental health in the experimental group was significantly higher than in the control group (p<0.001).
Conclusion: The research results showed that employing the educational program based on self-efficacy theory was positively effective as for promotion of self-care in the field of mental health in hemodialysis patients.

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Aims: Influenza A virus subtype H1N1, known as H1N1 influenza virus, could cause moderate to severe swine influenza in humans. H1N1 influenza is associated with high mortality rate. Effective symptom management could significantly reduce the mortality rate. This study aimed to determine the clinical manifestations, outcomes, and predictors of mortality in patients with H1N1 influenza, admitted to hospitals during January to September 2016.
Materials & Methods: This retrospective descriptive-analytical study was conducted during January to September 2016 in eight hospitals located in Razavi Khorasan province, northeastern Iran. The medical records of 65 patients were retrieved, and the necessary data were extracted from the records using a demographic questionnaire and a clinical manifestations checklist. The SPSS software Version 23.0 was used to analyze the data via the measures of descriptive statistics and the logistic regression analysis with odds ratio.
findings: The most common clinical manifestations of H1N1 influenza were headache (70.8%), numbness in the extremities (63.1%), myalgia (60%), cough (58.5%), fever and shivering (53.8%), and nausea (53.8%). In total, 14 (21.53%) patients had died due to H1N1 influenza. The significant predictors of death were dyspnea (OR: 13.91, p: .032), myalgia (OR: 0.04. p: .010), and age (OR: 1.05, p: .024) so that dyspnea and myalgia were associated with 13.9 and 0.04 times higher odds of death, respectively. Moreover, each one year increase in age was associated with 5% increase in the odds of experiencing death.
Conclusions: In the case of H1N1 influenza epidemics, care services need to be allocated more to patients who have higher age and suffer from myalgia and dyspnea.

 

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Research subject: Bio-hydrogen is a renewable energy source with many economic and environmental benefits as a fuel. Controlling the concentration of the substrate in the reactor has a significant effect on the amount of hydrogen production. However, bio-hydrogen production is a nonlinear process that requires the implementation of nonlinear control methods. In this paper, substrate concentration in an anaerobic bio-reactor is controlled using the feedback linearization method.
Research approach: The model employed for the simulation is a well-known model consisting of three state variables. The proposed controller is a globally linearized controller (GLC) designed based on the feedback linearization technique. In this method, the nonlinear system is precisely linearized by a transformation of the coordinate system. As a result, the linearized system can be controlled using a linear controller. In order to linearize the system, a nonlinear compensator is designed using the design model and applying the concepts of differential geometry. Proportional-integral (PI) controller is adopted as a linear controller. GLC controller performance has been compared with a nonlinear controller (NC) and a PI controller. The performance of these controllers has been studied by numerical simulation based on the integral of time-square error (ITSE).
Main results: The simulation results show that substrate concentration control can contribute to the hydrogen production. The control method applied has better set-point tracking than the other two control approaches. The ITSE performance index for the feedback linearization method is lower than the other two methods. The nonlinear feedback controller fails if the kinetic parameters are changed by 25%, but the PI method and the feedback linearization are robust against model uncertainty. An efficient controller guarantees stable bio-hydrogen production. Comparing open-loop and closed-loop simulation results shows that controlling the substrate concentration increases hydrogen production by 90%.

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Aims: Hemodialysis patients experience numerous problems in the fields of self-care in adherence to dietary and fluids-intake restriction. For increasing their self-care, they require controlling these problems. This can be done with the education based on a behavior change theory, this study attempted to determine the effect of the educational intervention based on SET (Self-efficacy Theory) on adherence to diet and fluid-intake restriction in patients with hemodialysis.
Materials & Methods: The present study is a randomized clinical trial that was conducted on 70 hemodialysis patients of Qom City in 2016 (35 in the trial group, 35 in the control group). The data were collected by demographic questionnaire, self-efficacy (SUPPH) and researcher-made validated and relied questionnaire of adherence to dietary and fluids-intake restriction (8 and 6 questions, respectively) in two steps (before and three months after education). The educational program was performed for the trial group in two half-hour sessions. The data were analyzed by SPSS 16, using paired-test, Independent t-test, Chi-square and Mann-Whitney test.
Findings: Before the test, there was no significant difference in adherence to dietary (p=0.49) and fluids-intake restriction (p=1.00). After training, significant differences were observed between the two groups in adherence to dietary (p<0.001) and fluids-intake restriction (p<0.001). There was significant difference between pre-test and post-test in the control group (p<0.05).
Conclusion: The educational intervention based on Self-efficacy Theory has the effect on adherence to diet and fluid-intake restriction in patients with hemodialysis.

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Research Subject: In this study, Thiourea-functionalized super-paramagnetic nanoparticles were used as a heterogeneous catalyst in the Petasis-Borono Mannich reaction.
Research approach: In the first stage of this study, Fe₃O₄@SiO₂ nanoparticles were synthesized as spherical core-shell nanoparticles such that Fe₃O₄ particles were considered as the core. Then in the next step, the characteristics of surface functional groups, crystal structure, magnetic properties, size and surface appearance of nanoparticles and the process of functionalizing the structure in layers, using infrared spectroscopy (FT-IR), X-ray diffraction (XRD), vibrating sample magnetometer (VSM), scanning electron microscopy (SEM), thermogravimetric analysis (TGA) were examined, identified and analyzed. Then, to evaluate the efficiency of the structure, it was used as a catalyst in the Borono-Mannich reaction of potassium potash. Infrared spectroscopy (FT-IR) and hydrogen nuclear magnetic resonance spectroscopy (HNMR) were used to investigate the structure of the products.
Main results: The IR spectroscopy results showed that the peaks appearing in 568 cm^-1 and 670 cm^-1 were related to iron-oxygen bond, the peaks in 1092 and 800-950 cm^-1 were related to silicon-oxygen bond, which indicates the formation of silicon layer on nanomagnetic particles and the validity of the reaction products. The results also showed that the amount of saturated magnetite in about 23 emu/g increased with increasing complex ligand. X-ray diffraction analysis showed that the index peaks of (2θ= 21.25˚, 37.29˚, 43.73˚, 52.56˚, 65.09˚, 69.73˚, 76.81˚) were realized and for certainty of the formation of the desired magnetic nanoparticles in crystalline phase were used. The results of SEM analysis showed the structure of nanoparticles in a spherical shape and EDX analysis confirmed the presence of elements in the structure which included sulfur. Also, the thermogravimetric analysis index showed approximately 7% decomposition coefficient. The first, second and third decomposition were observed 1% by weight (60°C), 5% by weight (200 to 300°C) and 1% by weight (350 to 700° C), respectively. The highest yield of 68% was measured with 40 mg catalyst in acetonitrile. The structure of thiourea was properly stabilized in a magnetic nanocatalyst.

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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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During a faunistic study on the springtails (Collembola) of Khuzestan in south-western Iran, eight species including three Hypogastruridae, four Isotomidae and one Sminthuridae were collected and identified. Acherontiella and Acherontiella bougisi Cassagnau et Delamare Deboutteville, 1955 (Hypogastruridae), Ballistura tuberculata (Stach, 1947) (Isotomidae) and Sminthurus wahlgreni Stach, 1920 (Sminthuridae) are new for Iran while Hypogastrura manubrialis (Tullberg, 1869) (Hypogastruridae),  Isotomurus palustris (Müller, 1776) and Parisotoma notabilis (Schäffer, 1896) (Isotomidae) are new for Khuzestan fauna

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Backgrounds: This study aimed to assess antibacterial properties of Artemisia scoparia, Titanium dioxide nanoparticles, and their synergistic effect on clinical isolates of Klebsiella pneumonia.
Materials & Methods: In this experimental study, 30 isolates of K. pneumonia were collected from patients’ sputum in the microbiology lab of Masih Daneshvari hospital during 3 months. Then biochemical tests were performed for strain confirming. Moreover, genomic DNA was extracted from all the isolates, and hly gene was detected in the isolates via PCR method. The susceptibility of the isolates to 10 antibiotics was evaluated by the disk diffusion method. Then minimum inhibitory concentration (MIC) of all components (Artemisia extract, TiO2, and their combination) was assessed using the microdilution method against the isolates.
Findings: The results indicated that simultaneous use of hydro-alcoholic extract of A. scoparia and titanium dioxide nanoparticles exhibited a significant synergistic antibacterial effect on 25 clinical isolates in comparison with the use of extract or nanoparticles alone.
Conclusion: It seems that simultaneous use of Artemisia herbal extracts and nanoparticles is beneficial in increasing their antibacterial effect and may decrease antibiotics consumption.

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Research subject: Polypropylene (PP) is a thermoplastic polymer that is used in a wide range of applications, including films and sheets, blow molding, injection molding, food packaging, textiles, laboratory and medical equipment, pipes, industrial and construction applications, and the manufacture of automotive components. In the applications of this polymer, improving the surface of PP has been considered. One of the usual methods for improving the surface is the cold plasma method. Plasma is a chemically highly active environment where there are many ions and radicals. In this research, atmospheric pressure gliding discharge plasma was used to increase the hydrophobicity of PP and the surface and depth changes of PP were investigated.
Research approach: The depth and surface changes of PP were investigated by radiating the gliding discharge plasma to the PP polymer surface at the different times. FTIR and XRD tests were performed to investigate volume changes and FESEM investigated the surface changes. The hydrophobicity of PP was investigated by contact angle (CA) test and positron lifetime spectroscopy (PALS) was used to investigate shallow depth changes.
Main results: The results show that the applied cold plasma did not cause volumetric changes in PP, but caused surface changes and roughness. In this polymer, the contact angle has increased from 30.1 ± 0.1 to 34.4 ± 0.1 and the hydrophobicity of the surface has increased. Examining the changes in holes by PALS test shows that after plasma irradiation the volume of the holes increased from 217 ų to 222 ų and their intensity decreased. This is due to the heat of the plasma and the energy of its particles.:
The results show that the cold plasma caused surface and depth changes and the contact angle increased from 30.1 ± 0.1 to 34.4 ± 0.1 and the hydrophobicity of the surface increased.
 

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Habrobracon hebetor Say (Hymenoptera: Braconidae) is one of the parasitoids which is used against various lepidopteran insect pests in Iran. Due to extensive application of chemical pesticides in farms, studying their side effects on natural enemies is necessary in order to evaluate their probable detrimental effects, in case of application in IPM programs. In this study, side-effects of two prevalent insecticides, flubendiamide and azadirachtin, on functional response of H. hebetor to different densities of 5th instar larvae of Ephestia kuehniella Zeller were evaluated in laboratory conditions. Host densities of 2, 4, 8, 16, 32 and 64 were exposed to randomly selected treated females of H. hebetor in Petri dishes. Ten replications were considered for each host density. The control was treated with water. The results revealed a type ΙΙ response for all treatments. This study showed that flubendiamide and azadirachtin had the lowest (0.269h) and highest values (1.822h) of handling times, respectively. Also, the highest and lowest values of searching efficiency were observed in the flubendiamide (0.188h–1) and azadirachtin (0.0396 h–1) treated wasps, respectively. According to the results of the study, flubendiamide may be more compatible with biological control agent in IPM programs.

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This article aims at estimating core vocabulary of preschoolers with intellectual disability in Tehran. Stratified matrix sampling was used for choosing and grouping the 90 informants.  Three groups (each group 16 boys and 14 girls) were selected among the preschoolers less than 9 years. Based on Nematzadeh et.al (2005) two subtests were modified and developed: Perceptive and Lexical factors which assessed understanding of 694 and 830 words have been respectively evaluated. 14 informants were chosen for filling the lexical subtest among the teachers. Since there were lots of items in perceptive subtest, from different parts of speech (noun, adjective and verb) 1/3 of them were selected and the students have been told to answer them in 2 different sessions. The data were analyzed using descriptive analytic method. If a word was recognized by 80% of the informants, it was decided to be a core vocabulary (24 out of 30 in perceptive subtest and 4 out of 5 in lexical subtest). 219 and 81 words were listed to be among core vocabularies based on perceptive and lexical subtest respectively. 54 words were common in the lists. So, 246 words were estimated to be core vocabulary of educable mentally retarded preschoolers in Tehran.