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Showing 188 results for Soltani


Volume 0, Issue 0 (Articles accepted at the time of publication 2024)
Abstract

This study investigated the construct validity and measurement invariance of the Teacher Emotion Questionnaire to introduce a valid and reliable instrument for assessing English-as-a-foreign-language (EFL) teachers’ emotions inside the classroom. Second language (L2) teacher emotions have been largely neglected, despite the fact that Educational Psychology has long recognized and researched the role of teacher emotions in different aspects of teaching and learning. To bridge this gap, the current study had 208 Iranian EFL teachers in private language institutes fill out the Teacher Emotion Questionnaire (TEQ), which assessed six emotions teachers experience in their classroom, i.e., Joy, Pride, Love, Anger, Fatigue/Exhaustion, and Hopelessness. The preliminary analysis of the data showed that six items from the TEQ had a factor loading below the minimum recommended level of 0.3, meaning that they contributed to the total variance in the participants’ score less than expected. The collected data were then submitted to confirmatory factor analysis (CFA) for the purpose of construct validation and establishment of the factorial structure of the TEQ. The CFA results indicated that the hypothesized six-factor analysis had more favorable goodness-of-fit indices than both a one-factor structure and a two-factor structure (e.g., positive versus negative emotions). Multilevel CFA revealed that the tested six-factor structure of the TEQ was invariant across male and female EFL teachers. The implications for the use of TES in EFL teaching contexts are discussed, and some suggestions are proposed for further validation of the TEQ in language teaching contexts.
 

Volume 1, Issue 2 (winter 2018)
Abstract

Nowadays, investigating and researching on energetic polymers in order to increase mechanical, thermodynamic, and detonational properties of them have been highly regarded. One of these energetic polymers is GAP. In this paper, molecular dynamics simulation has been used to compare the properties of GAP and GTP energetic polymers. GTP, in principle is the modified form of GAP, in which functional group of triazolium methyl nitrate has been added instead of azide. The mechanical properties of GAP is a challenging topic in the field of energetic materials. Due to the attributes of the 3 azoliom methyl nitrate ring, the mechanical and thermodynamic properties of GTP are expected to be higher than GAP. The results obtained by molecular dynamics simulation showed that GTP is a stable material and its mechanical properties such as Young, and shear modulus compared to GTP have been decreased 27% and 32% respectively, and bulk modulus, Poisson coefficient, and K/G ratio compared to GTPhave been increased 17%, 42%, and 71% respectively. It was also found that the detonation speed, detonation pressure, and oxygen balance of energetic polymer compared to GAP, have been increased 5%, 14%, and 21% respectively. As a result, usage of GTP will increase as a modified GAP material in applications such as clean and chlorine-free propellants for the solid propellant rockets and also safety systems of automobiles.

Volume 1, Issue 3 (9-2013)
Abstract

In order to understand the importance of particle size and agglomeration for nano-eco-toxicological studies in aquatic environments, the acute toxicity of two different types (suspended powder and colloidal) of silver nanoparticles (AgNPs) were studied in alevin and juvenilerainbow trout. Fish were exposed to each type of AgNPs at nominal concentrations of 0.032, 0.1, 0.32, 1, 3.2, 10, 32, and 100 mg/L. Lethal concentrations (LC) were calculated using a Probit analysis. Some physical and chemical characteristics of silver nanoparticles were determined. In the case of colloidal form, particles were well dispersed in the water column and retained their size; but in the case of suspended powder, particles were agglomerated to large clumps and precipitated on the bottom. In alevins, the calculated 96 h LC50 values were 0.25 and 28.25mg/L for colloidal and suspended powder AgNPs respectively. In the case of juveniles, the 96h LC50 of colloidal form was 2.16mg/L, but suspended powder did not caused mortality in fish even after 21 days. The results showed that both in alevin and juvenile stages, colloidal form is much toxic than suspended powder; this shows increase of nanoparticles size due to agglomeration, will reduce the toxicity. Silver nanoparticles are toxic materials and their release into the water environment should be avoided.

Volume 1, Issue 4 (12-2012)
Abstract

Asiatic citrus canker is a devastating disease resulting in drastic economic losses in citriculture worldwide. Amongst three different types of the disease, i.e. A, A* and Aw, the A* type is genetically less known. In order to comprehend the behavior of the Asiatic citrus canker A*-type strain (Xanthomonas citri subsp. citri) in the vicinity of the host cells, a targeted semi-quantitative transcript analysis approach via RT-PCR was carried out. A subset of sixteen genes, as representative of different steps involved in phytopathogencity, was analyzed on the culture medium (as uninduced) and compared with the subset isolated from the infected Mexican lime (Citrus auarntifolia L.) plants (as induced). The results showed that certain genes were up-regulated in induced condition, suggesting a putative role in bacteria-host interaction. Furthermore, the transcripts in induced condition could be classified into constitutive, early- and late-responsive genes, demonstrating their functional relevance during the host-pathogen interaction.    

Volume 2, Issue 1 (1-2016)
Abstract

Background: Campylobacter spp. are the common pathogens that infect human beings via food. These bacteria are vibrio and have been implicated in abortion. Serotyping is the best way for typing with Penner scheme. C. jejuni and C. coli have 65 serotypes. C. coli is common in birds and dogs. Due to high rate of prevalence of Campylobacter in red-meat, chicken-meat and egg-shell, a suitable method to detect their prevalence, the most common species and serotyping group was necessary. This article describes the prevalence of Campylobacter infection, common serotyping group in 330 samples of red- meat, hen-meat and egg-shell. Materials and Methods: With three methods: enrichment, selective Preston and Skirrow and filtration with membrane filters Campylobacter swere incubated. Bacterial species were identified with physiological and biochemical tests. Penner serotyping was defined with reference antiserum Ag-O and direct agglutination. Results: Prevalence of Campylobacter infection was 21(23%) in red meat, 33(27.5%) in hen meat and 38(31.6%) in eggshell. In egg-shell samples: C. jejuni 20, C. coli 14, C. lari 3 and C. concisus 1 case. In meat common Penner serotyping for C. jejuni O2 had the highest rate. In hen, common Penner serotyping: for C. jejuni O3 and in egg-shell for O1, O2 and O3 had the highest rate. Conclusion: Most infection of campylobacter was found in egg-shell; most common species in these three samples were C. jejuni, then C. coli and C. lari. No C. consicus was found in meat but it was found in hen and egg-shells. In common Penner serotyping for C. jejuni O2 and O3 were the most common and for C. coli in meat O49 and in hen and eggshell O5 were the highest.

Volume 2, Issue 3 (7-2016)
Abstract

Background: Leptospirosis has been recognized as an important reemerging infectious disease caused by pathogenic Leptospira spp. A major challenge of this disease is the application of a basic research to improve diagnostic method. Outer membrane proteins of Leptospira are potential candidates that could be useful in diagnosis. Among them the lipL41 is an immunogenic protein which is present only in pathogenic serovars. In order to evaluate genetic conservation of the lipL41 gene, we cloned and sequenced this gene from Leptospira interrogans serovar Canicola.
Materials and Methods: Following the DNA extraction from the serovar, the lipL41 gene was amplified and cloned into pTZ57R/T vector and transformed into the competent E. coli (Top10). Recombinant clones were confirmed by colony PCR and DNA sequencing. The related sequences were then analyzed and compared with the sequences in the Genbank database.
Results: PCR amplification of the lipL41 gene resulted in a 1065 bp PCR product. The PCR based on the lipL41 gene detected all the pathogenic reference serovars of the tested Leptospira spp. It was revealed that in Iran the homology of the lipL41 gene between vaccinal and clinical serovars of Canicola was 100%. It also showed >95.9% homology with other pathogenic serovars in Genbank database, which indicates genetic conservation of this gene.
Conclusion: Because of the conservation of lipL41 gene among different strains of Leptospira and its exclusive presence in leptospira, it was revealed that the cloned gene could be further used as a good candidate for developing diagnostic methods such as ELISA and as positive control in diagnostic PCR.

Volume 2, Issue 3 (7-2016)
Abstract

Background: Health care workers (HCWs) are at the risk of the acquisition of occupational transmissible diseases. Controversial results have been reported about hepatitis C virus (HCV). The main objective of the recent study was to evaluate the seroprevalence of HCV and its relationship to the occupational history and exposure of HCWs in two teaching hospitals in Tehran-Iran.

Materials and Methods: A seroprevalence survey of HCV was conducted using serum samples obtained from 1400 HCWs in two teaching hospitals during 2012. The samples were screened by ELISA for the presence of anti-HCV antibodies.

Results: In none of the participants the HCV antibody was detected. Needle stick injury was significantly higher among nurses. Younger HCWs with a shorter professional life had more frequent needle stick injury (p<0.001).

Conclusion: The seroprevalence of HCV in HCWs was considerably lower than that reported in the general population, and needs to be evaluated on a larger scale.

Volume 2, Issue 3 (8-2017)
Abstract

The present study seeks to analyze the components of black poetry in the poems of Simin Behbahani and Nazak al-Malaek as two contemporary Persian and Arabic poets. The reason for choosing and adapting the lyrics of these two poets in this study is that each of them, in a period of their own literary life, somehow faced with some currents, which have in turn raised a sense of despair and Nihilism in humankind. Affected by the suffocation and tyranny of society in their era, they have extensively reflected the components of black poetry in their poems.

Volume 2, Issue 4 (12-2013)
Abstract

The cypress family, Cupressaceae, has a global dispersion. Currently, endophytic microorganisms from plants are being investigated for their diversity and bioactivities. Here, we aimed at exploration and characterization of cultivable endophytic fungi from foliar tissues of Cupressaceae, i.e. Cupressus arizonica, C. sempervirens var. cereiformis, C. sempervirens var. fastigiata, Juniperus excelsa, Juniperus sp. and Thuja orientalis. Asymptomatic fresh foliar tissues, collected from mature healthy plants, were sterilized and the inner layers were plated on culture media at 26-28 °C for 2-12 weeks, until fungal colonies emerged and were purified. Endophytic Penicillia i.e. Penicillium aurantiogriseum, P. chrysogenum, P. commune, P. echinulatum, P. expansum and P. viridicatum were the dominant fungi recovered. Results indicated that both host plant and geographical location of sampling affected the biodiversity and bioactivity of endophytic Penicillia. Results also indicated that those endophytic Penicillia had significant bioactivities. According to our results, both intra-and extra-cellular secondary metabolites from all isolated Penicillia had significant cytotoxic and antifungal effects against the model fungus Pyricularia oryzae and cypress fungal phytopathogens Diplodia seriata, Phaeobotryon cupressi and Spencermartinsia viticola. Further studies indicated the significant antimicrobial bioactivities of superior Penicillia against model bacteria. Altogether, this study highlights, for the first time, the biodiversity of endophytic Penicillia from Cupressaceae plants and documents their significance for agrochemical/drug discovery and for plant disease biocontrol.  

Volume 2, Issue 4 (12-2017)
Abstract

Background: This study aimed to assess the influence of video games on voice learning in students of speech therapy.
Methods & Materials: This study was a clinical trial study in which 102 fifth semester students of speech therapy group of Ahvaz Jundishapur University of Medical Sciences took part and were divided into two groups. The first group included 27students who were admitted in the university from 2008and2009 trained in traditional training and the second group (N = 75) who were admitted in 2010, 2011, 2012, and 2013 spent their traditional training plus using the software of Avaz-e-Ma. at the end of each semester. Students' satisfaction of the learning of each group was obtained through using the qualitative scale and the final exam of each group. The relationship between the learning type and the student scores was analyzed using Pearson correlation coefficient and the difference between of both groups were analyzed by independent T-test.
Results: The mean age of the first and the second group were 20.11 ± 3.02 and 20.25 ± 2.12 years old respectively. The mean score of the students who learned by software were 18 ± 0.2 and the students by traditional way was 12 ± 0.2 that was significant difference (P < 0.001). The majority of the students (90%) believed that the use of software has been useful.
Conclusion: The use of educational games in the classroom leads to an increase in the students' grades and the satisfaction of the students with the quality of instruction. Accordingly, using technology in educational system is recommended.

Volume 3, Issue 1 (spring 2022)
Abstract

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.       


Volume 3, Issue 2 (Number 2 - 2001)
Abstract

Projected global climate change may have a major influence on crop yield. The likely effects of climate change caused by increasing atmospheric carbon dioxide levels on rice yield in Iran were evaluated using a mechanistic growth model for rice, GSAC-rice, running under a climate change scenario predicted for a doubled-CO2 (2xCO2) atmosphere by the Geophysical Fluid Dynamics Laboratory (GFDL) General Circulation Model (GCM). Simulations were run for two locations with contrasting climates, one in the north (Rasht) and one in the south (Ahwaz) of Iran. GFDL predicted that as a result of doubling CO2 , temperature increases by 4.5 and 4.6 0C during the rice growing season in Rasht and Ahwaz, respectively. Changes in solar radiation are minor, but rainfall during the rice growing season decreases by 38.8% (102 mm) for Rasht and 68.2% (5.8 mm) for Ahwaz. It was predicted that doubling [CO2] alone increased rice yield by 30%, but that yield decreases by 3.7 and 11.6% for each degree centigrade rise in temperature in Rasht and Ahwaz, respectively. As a result of the combined effect of both doubling [CO2] and the climate change accompanying it (predicted with GFDL), 8% greater rice could be produced in Rasht, but irrigation needs would be increased dramatically by 57%. In Ahwaz (the south of Iran), rice production could be halved and might not even remain a viable option unless plant breeders are able to produce more heat tolerant rice cultivars. It was concluded that rice production in the north and south of the country would change dramatically.

Volume 3, Issue 2 (6-2015)
Abstract

Aim: Health locus of control includes the degree of a person's belief in the fact that his/her health is controlled by internal or external factors. The aim of this study was to determine the status of health locus of control and its related factors among Iranian pilgrims.
Methods: This cross-sectional study was performed on 600 pilgrims of the holy shrines in Tehran in 2015. People aged over 15 years who had come for pilgrimage to the shrines entered the study by convenient sampling and after consent. The A form of the Multi-dimensional Health Locus of Control scale was used. This form consists of Internal Health Locus of Control (IHLC), Powerful others (PHLC) and Chance External Locus of Control (CHLC). The relation of between age, gender, education, income, marital status and location of residence on each construct was evaluated by t-test, ANOVA and linear regression through SPSS21.
Findings: Among the total pilgrims, 302 were females (50.3%). The mean age of the participants was 33.15±11.06 years. The highest and lowest averages were associated with the internal locus of control (25.60±3.34) and the chance locus of control (18.20±5.13), respectively. There was a significant relationship between educational level and IHLC; between income and education level with CHLC; and between marital status and age with PHLC.
Conclusion: According to our results, most people think that they control their health or life events themselves. People with a higher internal locus of control score have more tendency to practice health promotion and disease prevention and seek health through visiting holy sites and appealing to God.

Volume 3, Issue 2 (summer 2022)
Abstract

Background: Part of the current issues related to mobility in urban spaces goes back to the definition and measurement of mobility. Mobility is the capacity to be mobile. Regarding that capacity relates to the individual's mind or the built environment, mobility is defined differently.
Objectives: This study aims to review the theories related to mobility and thus provide a theoretical and operational framework for measuring mobility in urban spaces.
Method: In this regard, the Content analysis method has been used to analyze the data in phases of Preparation, Organization, and classification.
Results: The results of content analysis show that these theories can be divided into three categories of subjectivist, environmentalist, and pluralist theories; Subjective theories focus on the mental nature of mobility and regard mobility as a function of individuals' habits, attitudes, motivations, and norms; In contrast, environmentalist theories pay special attention to the impact of environmental factors such as density, land use mix, and accessibility on the mobility of individuals. Pluralist theories consider citizens' differences according to their personal characteristics and situation, and therefore consider diversity and difference effective in mobility and involve them in the evaluation and measurement process.

Conclusion: The study of the factors affecting mobility shows that mobility is a complex and multilevel concept that is influenced by many factors; therefore, if urban planners want to improve the urban mobility system, they must pay special attention to the role of all these factors and the relationships between them.

Volume 3, Issue 3 (12-2014)
Abstract

In a completely randomized design, the effects of two probiotic bacteria, Bifidobacterium animalis and B. lactis at four concentrations of 0 (control), 1×109 (T1), 2×109 (T2) and 3×109 (T3) CFU 100g-1 on nutritional parameters of rainbow trout fry (0.538 ± 0.197 g body weight) were compared for 60 days, with each treatment carried in three replications. A significant difference was observed between treatments and the control in protein and lipid gain and also body composition (p<0.05). Despite a significant difference of metabolic growth rate in T1 and T2 with T3 and the control, no significant difference was observed between T3 and the control. The results demonstrated that the use of thesebacteria could improve nutritional parameters and metabolic growth rate of rainbow trout fry.

Volume 3, Issue 3 (Summer 2018)
Abstract

Aims: In this study we examined the use of Virtual Reality (VR) in oral organs assessment training in speech therapy students.
Method: The population of this study included 35 fifth term students of speech therapy in Jundishapur Medical Science University of Ahvaz. The first group was 18 students entering university in 1394 passed oral function assessment course through traditional training method. The second group was 17 students entering university in 1395 passed this course through traditional training method with Virtual Reality. 3D (Three-Dimensional) glasses and a monitor are the tools applied in Virtual Reality technique allowing the student to touch the oral organs and experience various oral functions recognition.
Findings: The first group was 20-22 years old (20.35±2.14) and the second group was 20-22 years old (20.18±3.06). The mean and standard deviation of the final score in students used Virtual Reality was 18.57±1.31 and for the students used traditional method were 14.35±2.15. Independent-T test showed a meaningful difference between the two groups (p<0.001).
Discussion: Using Virtual Reality in classroom resulted in an increase in students' scores. Hence taking into account the great importance of teaching method, its effect on the society and health organization, it is necessary for the education system to use a technology which increases teaching quality and creates more effective learning in students.


Volume 3, Issue 3 (Summer 2018)
Abstract

Aims: This study aimed at examining the effect of caricature on the score of family counseling in the internship training unit and the degree of satisfaction of the trainers of the internship unit from the performance of speech therapy students in Ahvaz.
Materials & Methods: The population of the study consisted of 74 students of the 5th semester of speech therapy of Ahvaz Jundishapur University of Medical Sciences admitted to the university during 2013 to 2016 divided into two groups. The first group consisted of 39 students (2013 and 2014) and had passed patient counseling with the conventional method, the second group included 35 students (2015 and 2016) and had spent patient counseling of the speech disorder course with the help of caricatures. At the end each semester, trainers in both groups scored their satisfaction with the students’ performance, using a 4-degree qualitative scale, the internship scores of both groups were recorded.
Findings: The mean and standard deviation for the internship of students, who passed patient counseling using caricatures was 18.92±0.70, and for the students, who studied the voice topic with the traditional method was 14.84±1.05. Independent t-test showed the significance of this difference between the two groups (p<0.001). 90% of the trainers acknowledged that teaching with caricatures is more effective than the conventional teaching for offering counseling service to patients.
Conclusion: The use of caricatures in classroom has led to an increase in the ability of students to consult a patient with voice disorder. It also leads to increased satisfaction of internship trainers.
 


Volume 3, Issue 9 (Spring 2022)
Abstract

The current research aimed to design a model of social exchange and satisfaction of basic needs in sports veterans of Alborz province. The statistical population of this research was made up of sports veterans of Alborz province (N=700). Using Morgan's table, the statistical sample was estimated to be 248 tons, selected as available sampling. In order to collect data, social exchange questionnaires (Iraji, 1401) and satisfaction of basic needs (Johan, 2011) were used. The face and content validity of the questionnaires were determined by using the corrective opinions of sports management professors, and the reliability of both questionnaires was obtained using Cronbach's alpha test of 0.87 and 0.79, respectively. The research method is descriptive and correlation type, which was implemented in the field. In order to analyze the data, descriptive indices and Kolmogorov-Smironov statistical tests, regression analysis, and path analysis were used. According to the results, social exchange has a positive and significant effect on satisfying basic needs (r=1.05, T-Value=10.31). Also, the components of organizational and social support in the regression equation are qualified to predict the satisfaction of basic needs.
 

Volume 4, Issue 1 (6-2014)
Abstract

Applying current quality management models is not proper for military research organizations relating different fields of human resource, strategic management, leadership, culture and organizational behavior. Application of these models organizations and may cause some issues for these organizations. This research paper aiming at upholding current EFQM excellence model is based on a research being hold in the military research organizations, according to which the conceptual research model was designed. The research followed an applied purpose through survey data collection method. The validity of the aspects, categories and indicators of the model was strongly confirmed by the experts. The results of the Analytic Hierarchy Process (AHP) technique received 336.8 out of 1000 as a general score for all localized criteria. Leadership and management, having a score of 51.7, were the highest, and resource management and shareholding were at the lowest position among the enablers. In relation to increasing values for users, the score was highest and it was the lowest for shareholders.      

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