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Open Access Article
1 - The analysis of effects of heat stress on citizenships of Tehran
Exposure to heat and heat stress that most people encounter during daily activities or activities in the workplace will have an impact on human physical activity. The aim of this study was to discuss the effects of heat stress in the 22 districts on citizenships of Tehr MoreExposure to heat and heat stress that most people encounter during daily activities or activities in the workplace will have an impact on human physical activity. The aim of this study was to discuss the effects of heat stress in the 22 districts on citizenships of Tehran. For this purpose, the questionnaire data has been used. This research was descriptive and fieldwork was done and a questionnaire was used for data collection. This questionnaire was performed according to a sample size of 385 cases and through using Cochran's formula. For analysis the data of questionnaire was used SPSS and MATLAB software. The findings of descriptive showed that 60% of the respondents were female and 40% men. Since weight has almost direct connection to heat stress, the evaluation of the weight class diversity can be almost suitable for the analysis of the factors and mental responses of heat stress on citizenships of Tehran. Based on this issue, 32.7% have a weight between 55 and 65 and 29.09% have weight more than 75 kg. In order to analysis, the role of heat stress on citizenships of Tehran factor analysis and cluster analysis have been used. The results indicated that based on factor analysis, heat stress has the most effects on the calm of soul and spirit, fatigue and heatstroke and decreased activity and increased transpiration of the body, cramps, pulmonary and heart disease. According to cluster analysis, cardio pulmonary disease and cramps, the calm of soul and spirit and fatigue, dizziness, heatstroke and decreased activity and increased transpiration have been affected respectively. The study showed that the effects of heat stress on gender, type of occupation, marriage, celibacy, male and female and there is a significant relationship between heat stress and gender, occupation and age while marital, celibacy and weight don't have influence on heat stress. Manuscript profile -
Open Access Article
2 - Determination of stress state and tectonic regime changes in the brittle structures of Chah Yusuf Mountain (East of Gonabad)
فرهاد زارعی Ghaemi GhaemiIn this study, structural elements, such as faults and fractures and their formation mechanisms and relationships with tectonic regime of Chah Yusuf Mountain in East of Gonabad city have been recognized and discussed. Their relation with regional fractures, based on dat MoreIn this study, structural elements, such as faults and fractures and their formation mechanisms and relationships with tectonic regime of Chah Yusuf Mountain in East of Gonabad city have been recognized and discussed. Their relation with regional fractures, based on data’s from satellite image process and field data, is also shown. Major faults in this area were identified by using fault plain features such as striations, stretching vein and cumulative steps of minerals that helped us to determine fault mechanisms. In general, faults were oriented in three main directions: 1) Reversed faulting along N90-120˚, 2) Right lateral strike –slip faults along N140-160˚ and 3) Normal faults along N0-15˚. Based on the obtained data and using the inversion method, the orientation of the principal stress axes (σ1، σ2 and σ3) and the ratio of the principal stress differences R in the studied area were analyzed. The results showed two different tectonic regimes in the formation of regional structures: 1) Compressive tectonic regime, major stress along NNE-SSW, which generated structures of folds and reversed faults. 2) Shear tectonic regime, compressive stress along NE_SW and tensile stress line NW-SE, which generated structures such as strike-slip faults, normal faults, vein and tensile fracture. So, the major stress direction in this region is NNE-SSW, which shows its relation to the Late Cenozoic Arabia –Eurasia oblique continental collision. Manuscript profile -
Open Access Article
3 - Seismotectonics of the west of Golestan province, the east of south Caspian region
Maryam Agh-Atabai Marjan TouraniGolestan province is located in one of the seismically active zones of Iran. The seismicity maps of Golestan province show that density of earthquakes in the west is more than the east. In this research, the parameters including b-value, recurrence time and seismic mome MoreGolestan province is located in one of the seismically active zones of Iran. The seismicity maps of Golestan province show that density of earthquakes in the west is more than the east. In this research, the parameters including b-value, recurrence time and seismic moment were studied to investigate the seismicity of the west of Golestan province. The focal mechanism of earthuqakes and field data were used to determine the stress orientations in the study area. The estimated b-value is obtained as 1.24±0.2 which is comparable with the Alborz. Since the northern and southern parts of the study area have different geomorphological and structural characteristics, some of these parameters were calculated for two subdivisions; Dasht-e-Gorgan in the north and foothill in the south. Results of this study show that the earthquakes in the Dasht-e-Gorgan compared to the foothill are smaller with shorter recurrence times. For the foothills, the calculated P-axes using the stress tensor inversion method is found to be subhorizontal with trend N-NNE. For this region, at least two trends, N and NW, is calculated using field data. This result show the change of stress directions during the structural evolution of this area. The calculated p-axes trend for the Dasht-e-Gorgan is NE. In both studied areas, the focal mechanisms of greater earthquakes are consistent with the E-W to NE-SW trend of main faults especially the Khazar fault. But, the smaller events in the Gorgan Plain show a different trend and mechanism. Comparison of these two subdivisions shows that the northern Alborz foothill is more dangerous than the plain. Manuscript profile -
Open Access Article
4 - Reconstruction of present-day local stress field affecting the North Tabriz Fault and surrounding areas based on earthquakes focal mechanism by using inversion method
Ahad Noori Behnam RahimiIn this research, present-day tectonic stress field affecting North Tabriz Fault and surrounding areas was reconstructed by using 37 compiled earthquakes focal mechanism from various sources. Triangle diagrams were used to determine the sense of the earthquakes focal me MoreIn this research, present-day tectonic stress field affecting North Tabriz Fault and surrounding areas was reconstructed by using 37 compiled earthquakes focal mechanism from various sources. Triangle diagrams were used to determine the sense of the earthquakes focal mechanism. The sense of these data varies from strike-slip to thrust regime. Stress separation process was applied on data set for separation of the various tectonics regimes from a poly-phase system to obtain reduced stress tensors. This was done because most of the data participated in them and reconstructed stress fields completely cover the stresses affecting the region. The results of inversion analysis and internal separation of the data set show three stress regimes acting in this region. Considerably, all three stress regimes have a horizontal pressure stress with NW-SE to NNW-SSE trend. The direction of maximum pressure in each first, second and third regimes is 09/329, 28/310 and 03/138, respectively. In this research, present-day tectonic stress field affecting North Tabriz Fault and surrounding areas was reconstructed by using 37 compiled earthquakes focal mechanism from various sources. Triangle diagrams were used to determine the sense of the earthquakes focal mechanism. The sense of these data varies from strike-slip to thrust regime. Stress separation process was applied on data set for separation of the various tectonics regimes from a poly-phase system to obtain reduced stress tensors. This was done because most of the data participated in them and reconstructed stress fields completely cover the stresses affecting the region. The results of inversion analysis and internal separation of the data set show three stress regimes acting in this region. Considerably, all three stress regimes have a horizontal pressure stress with NW-SE to NNW-SSE trend. The direction of maximum pressure in each first, second and third regimes is 09/329, 28/310 and 03/138, respectively. Manuscript profile -
Open Access Article
5 - Difference of in situ stress regime dependent on Structural position and geomechanical characteristics, Case study- Gachsaran and Asmari formations, SW Iran
Hossein Talebi Seyd Ahmad Alavi Mohamad Reaz Ghasemi Shahram SherkatiEstimation of in-situ stress tensor in sedimentary basins using information obtained from exploration and development oil and gas wells during the drilling and logging process may be used for estimation of in-situ stress tensor in sedimentary basins. The in-situ stress MoreEstimation of in-situ stress tensor in sedimentary basins using information obtained from exploration and development oil and gas wells during the drilling and logging process may be used for estimation of in-situ stress tensor in sedimentary basins. The in-situ stress magnitude and orientation and the resulting stress regime around the studied wells have been several application in secondary recovery programs from hydrocarbon reservoirs as well as wellbore stability analysis. In this paper, the magnitude of in-situ stress is estimated by using abovementioned data in some oil wells located in the south west of Iran. Increasing the oil production by hydraulic fracturing design and sand control in the multi-layer reservoirs such as the Marun giant oil field with loose sand horizons and also improving drilling performance in the Gachsaran formation¬ requires knowledge about the prevailing stress conditions. This research, tries to analyze the stress regime of the Asmari and Gachsaran Formations around the selected wells in the Marun and Lali fields using constructed Mechanical Earth Models (MEM) and their differences are discussed. The calculated stress magnitudes in studied wells indicate a significant drop in magnitude of horizontal stresses from the Gachsaran to Asmari reservoirs in the Marun oil field. The magnitudes of the three principal stresses resulted that SHmax is the maximum principal stress and the Shmin is the minimum principal stress, thus a strike-slip stress regime (SHmax>Sv>Shmin) dominates in the Gachsaran sequence and the Asmari formation of the Lali oil field. however, in the Gachsaran formation of Marun giant oil field, stress regime is reverse-strike slip but normal stress regime is dominated in it's Asmari reservoir. The In-situ stress condition indicates that the structural condition and the depth difference of these structures plays an important role in the tectonic stress regime changes. Manuscript profile -
Open Access Article
6 - Analysis of stress regime in Shah Deniz oilfields and wellbore stability, in south Caspian Sea basin
Parvaneh Alizadeh Saeid Mohammad Hassanpour sedghi Ali Kadkhodaie Malek Mohammad GityWellbore instability is one of the main problems during drilling of oil and gas wells. Analyzing and wellbore instability prediction is important. In-situ stress measurement and stress regime are important for stability studies. This study was carried out in one of the MoreWellbore instability is one of the main problems during drilling of oil and gas wells. Analyzing and wellbore instability prediction is important. In-situ stress measurement and stress regime are important for stability studies. This study was carried out in one of the oilfields in the south Caspian basin in Iran. The compressional stress regime in the studied field was determined based on regional stress indicators and larg scale tectonic observations. . This study presented the effect of borehole inclination and azimuth on borehole stability under reverse fault regimes. The magnitude of stresses was determined from measured sonic velocities, density log and predicted pore pressure utilizing the Eaton method. In this study, the modified Lade model have been utilized to perform stability calculation for different inclinations and azimuths. In this study, to perform stability calculation with the use of STABview software is presented. It is shown that drilling wells parallel to maximum in-situ horizontal stress (NE-SW) causes less stability problems. The results of this study could help in the mitigation and/ or prevention of wellbore stability issues in this oilfield. Manuscript profile -
Open Access Article
7 - Prediction of Parental stress based on early maladaptive schemas and quality of marital life in mothers with children with special needs
Maryam Mirzaii Fenjani Banafshe OmidvarThe aim of this study was to predict parenting stress based on early maladaptive schemas and quality of marital life in mothers with children with special needs in Shiraz. The research method was descriptive. The statistical population included all mothers of children w MoreThe aim of this study was to predict parenting stress based on early maladaptive schemas and quality of marital life in mothers with children with special needs in Shiraz. The research method was descriptive. The statistical population included all mothers of children with children with specific needs in Shiraz, using a sampling method, 220 subjects were selected. They completed parent stress questionnaires, marital quality of life, and early maladaptive schemas. To analyze the hypotheses, multiple regression analysis was used. Results in the first hypothesis showed that the quality of marital life could predict the parents' stress in mothers with children with special needs. In the second hypothesis, early maladaptive schemas could predict the stress of parents of mothers with children with special needs. In the third hypothesis, two variables of quality of life in marriage and early maladaptive schemes have been able to predict the stress of parents of mothers with children with special needs. Manuscript profile -
Open Access Article
8 - Determining paleo-stress based on the study of discontinuities and folds in Zagros Collision Zone; Case Study: Kermanshah Region
سپیده رضابیک عبدالله سعیدی Mehran Aryan علی سربیThe studied zone is in the Northern part of Zagros Suture Zone (Kermanshah). The presence of deep sea sediments, oceanic crust remnants, platform carbonates, igneous and metamorphosed rocks of active margin and carbonate sequence of passive margin that are assembled in MoreThe studied zone is in the Northern part of Zagros Suture Zone (Kermanshah). The presence of deep sea sediments, oceanic crust remnants, platform carbonates, igneous and metamorphosed rocks of active margin and carbonate sequence of passive margin that are assembled in the studied area show a compressional tectonic regime from the late Cretaceous up to the present. As a result of convergent regime, a very complicated structural zone is developed. The main purpose of this study is stress characteristic analysis in Zagros Suture Zone (Kermanshah).To recognize and study the arrangement of stress axes a great amount of data were gathered from the folds axial surface and the faults which are appeared within the rocks specially the radiolaritic rocks. The data includes characteristics of fault surface geometry, fault slip and lineation slip. The stress recording patterns for data in this study is Multiple Inverse Method and comparison with stress position by using folds axial surface. By studying folds it was obtained the situation of main stress σ1, σ2 and σ3 respectively as 029, 127, 234 and by using the method Multiple Inverse Method, the situation of main stress is obtained as 059, 304, 194. Based on the investigations in the study area and measurements on Cretaceous rocks, the results show that the main stress direction since Cretaceous up to the present is northeastern with minor changes. The estimations of stress direction were the same in both folds and faults. As a result, the shortening direction has been constant, so the shortening faults all show one direction of stress. Manuscript profile -
Open Access Article
9 - The Effects of Coenzyme Q10 Supplementation with Two Consecutive Soccer Games on Stress Oxidative and Muscle Injury Markers in Male Collegiate Soccer Players
Ehsan ArabzadehBackground: This study aimed to investigate the effect of coenzyme Q10 consumption for fourteen days on the response of some indicators of oxidative stress and muscle damage following two consecutive football matches in college players Materials and Methods: for this p MoreBackground: This study aimed to investigate the effect of coenzyme Q10 consumption for fourteen days on the response of some indicators of oxidative stress and muscle damage following two consecutive football matches in college players Materials and Methods: for this purpose, 24 football players (with an average age of 20.08±12.1 years, a weight of 63.28±65.1 kg and a maximum oxygen consumption of 53.12± 0.98 ml /per /kg of body weight) The three groups were studied over a fourteen-day period. The control group did not receive these supplements and exercise activities, but the experimental groups included the placebo group (300 mg aspartame) and the coenzyme Q10 group (300 mg ubiquinone supplement) during the course in addition to receiving a placebo or supplement the two 90-minute football matches were less than 48 hours apart. Then, according to the research plan, blood samples were collected from the subjects in two stages 24 hours before and after the period and MDA, LDH, CK and AST indices were measured. Dependent t-test, one-way analysis of variance and Tukey's post hoc test were also used. Results: The results showed a significant difference between serum coenzyme Q 10 supplementation with serum MDA (P = 0.000) and AST (P = 0.006) concentrations from two consecutive football matches, while LDH levels (P = 0.970) and serum CK (P = 0.911) did not change significantly. Conclusion: Overall, the results show that supplementing coenzyme Q10 before and during a two-week match can have anti-oxidant benefits, so it can be recommended to college soccer players. Manuscript profile -
Open Access Article
10 - Chronic L-Carnitine Supplementation on Exercise Performance, Blood Lactate, and Exercise-Induced Oxidative Stress in Resistance-Trained Males
Ebrahim FallahBackground: The purpose of the present study is to investigate the effect of Chronic L-Carnitine Supplementation on Exercise Performance, Blood Lactate, and Exercise-Induced Oxidative Stress in Resistance-Trained Males Materials and Methods: We examined 35 resistance-t MoreBackground: The purpose of the present study is to investigate the effect of Chronic L-Carnitine Supplementation on Exercise Performance, Blood Lactate, and Exercise-Induced Oxidative Stress in Resistance-Trained Males Materials and Methods: We examined 35 resistance-trained (1y) male participants (25±2y, 79.8±8.9 kg, 16.1±5.53% body fat) for 9-wk of L-carnitine supplementation in conjunction with resistance training on exercise performance, blood lactate, and exercise-induced oxidative stress. Randomized, placebo-controlled, double-blind treatment of a (1) no intervention, no supplement Control (CON, n=12), (2) maltodextrose Placebo (PLA, 2 g/d, n=11) or (3) L-carnitine (LCR, 2 g/d, n=12). Exercise performance, post-exercise blood lactate (BL) and oxidative stress markers were analyzed at weeks 3, 6, and 9. The PLA and LCR groups followed a specific resistance training program (4 d/w, upper body/lower body split) for a 9-wk. Data were analyzed by GLM and presented as mean (SD) or change (95% CI). Primary outcomes were total lifting volume for the bench (BP) and leg press (LP). Results: The results a significant increase in BP lifting volume at wk-6 (139 kg, 95% CI 49.1, 230) and wk-9 (238 kg, 95% CI 132, 343) for LCR. Similar results were observed for LP. We also observed a significant increase in Wingate mean power (63.4 W, 95% CI 30.5, 96.3) and peak power (239 W/kg, 95% CI 104, 374) at wk-9 for LCR as well as a significant reduction in post-exercise BL levels and oxidative stress responses. No differences were observed in body composition. Conclusion: These findings indicate that LCR supplementation improves exercise performance and attenuates the blood lactate and oxidative stress response to resistance training. Manuscript profile -
Open Access Article
11 - Mediating Role of Coping with Stress Ways in the Relationship between Creative Thinking and Psychological Well-Being
Akram Ghobadi Fariborz Nikdel Naser NoushadiThe purpose of this study was to investigate mediating role of coping with stress styles in the relationship between creative thinking and psychological well-being. Population included 410 students Tehran university students who were selected as sample by using multi-st MoreThe purpose of this study was to investigate mediating role of coping with stress styles in the relationship between creative thinking and psychological well-being. Population included 410 students Tehran university students who were selected as sample by using multi-stage cluster sampling method. Research method was descriptive and co-relational. The data collection tools were Ryff Psychological Well-Being Questionnaire (1989), Andler and Parker Coping with Stress Styles Questionnaire (1990) and Torrance Creative Thinking Questionnaire(1979). The results showed that creative thinking had a direct and positive impact on psychological well-being. Creative thinking with the help of mediating role of Problem-oriented and emotional-oriented methods had indirect effect on psychological well-being. Problem-oriented method had positive impact and emotional-oriented method had negative impact on psychological well-being. There were not any significant relationships between avoidance-oriented method with creative thinking and psychological well-being variables. Therefore as a conclusion coping with stress methods had a mediating role in regards to creative thinking and psychological well-being. Manuscript profile -
Open Access Article
12 - The Relationship between mental Security, Social support and Resiliency With Post Traumatic Stress Disorder (PTSD) in the earthquake-affected adolescents In Sarapol-eZahab city
پروانه شجاعی مهر khodamorad momeni جهانگیر کرمیThe aim of the current study was to study the relationship between mental security, social support and resiliency with post tramatc stress disor. in the earthquake-affected adolescents In Sarapol-eZahab city. the population was the earthquake-affected adolescents in Sar MoreThe aim of the current study was to study the relationship between mental security, social support and resiliency with post tramatc stress disor. in the earthquake-affected adolescents In Sarapol-eZahab city. the population was the earthquake-affected adolescents in Sarapol-eZahab city. Thus, 130 student at sarpol-e zahab city girls and boys high schools were chosen by available sampling and Targeted with research topice as a sample. The research method, was Descriptive of the type correlation and the study tools included mental security logbook (Aminpour (2007) Retrieved from Maslow (1973), social support scale Sherborne and Stewart (1991), Conor & Davidson resiliency Scale (2003) and revised scale The events impact of the Weiss and Marmer (1997). The Data Was analyzed by using pearson correlation coefficient And stepwise regression analysis. Results revealed that, between mental Security Whit post-traumatic stress disorder, between social support and ptsd and between resiliency with ptsd there was a negative relationship. Manuscript profile -
Open Access Article
13 - Comparison of Resilience and Stress Coping Strategies between Volunteers and Soldiers who Participated in the War Against ISIS
Zana Nasih Salih Qadir Fariba HassaniThe aim of the current research is to determine the difference between resilience and coping strategies among volunteers and soldiers who participated in the war against ISIS. The research method was descriptive and causal-comparative. The population of interest in this MoreThe aim of the current research is to determine the difference between resilience and coping strategies among volunteers and soldiers who participated in the war against ISIS. The research method was descriptive and causal-comparative. The population of interest in this study was all Kurdish volunteers and soldiers in all three provinces of Halabja, Sulaimaniyah and Erbil of Iraqi Kurdistan who participated in the war against ISIS. The sample of this study was selected through available sampling. Then, data were collected using Connor-Davidson Resilience Scale ( CD-RISC) and Endler and Parker’s Coping Inventory for Stressful Situations and analyzed by multivariate analysis of variance (MANOVA). The results of this study showed that there was no difference in resilience between volunteers and soldiers, but there was a significant difference in coping with stress scale. In terms of problem-oriented style and avoidance-oriented style, the difference was significant. Therefore, it turns out that there is no difference in emotion-focused coping. The main findings of this study confirm that special training courses are recommended to enhance resilience and help volunteers and soldiers to exprince reduce warfare stress. Manuscript profile -
Open Access Article
14 - The Relationship between Mental Security, Social Support and Resiliency with Post Traumatic Stress Disorder (PTSD)
Parvane Shojaeimehr Khodamorad Momeni Jahangir KaramiThe aim of the current study was to study the the relationship between mental security, social support and resiliency with post traumatic stress disorder. Thus, 130 students in Sarpol-e Zahab city who were at high schools were chosen using convenient sampling method MoreThe aim of the current study was to study the the relationship between mental security, social support and resiliency with post traumatic stress disorder. Thus, 130 students in Sarpol-e Zahab city who were at high schools were chosen using convenient sampling method the sample was proportional to demographic share of each region. The research method, was descriptive and correlation, and the scales included were Mental Security Logbook (Aminpour-retrieved from Maslow, Social Support Scale Sherborne and Stewart, Conor & Davidson Resiliency Scale and revised scale The Events Impact of the Weiss and Marmer. The data was analyzed using pearson correlation coefficient and multiple regression analysis. Results revealed that, there was a negative relationship between mental security with post-traumatic stress disorder, between social support and ptsd, and between resiliency with ptsd. Manuscript profile -
Open Access Article
15 - The Structural Correlation Modeling of Stress and Eating Disorder by mediating Meaning in Life and Experiential Avoidance.
Hadi Kheirabadi Mahmoud Jajarmi Abolfazl BakhshipoorThe purpose of this study was modeling the relationship between Stress and Eating Disorder by mediating the Meaning of Life and Experiential Avoidance. The research method is descriptive and type of Structural Correlation Modeling. The statistical population of this stu MoreThe purpose of this study was modeling the relationship between Stress and Eating Disorder by mediating the Meaning of Life and Experiential Avoidance. The research method is descriptive and type of Structural Correlation Modeling. The statistical population of this study is all studying students at Mashhad Ferdowsi University in 2020.. 387 people were selected from among the studying students by multi-stage cluster sampling method. The participants answered to Eating Attitudes Test (Garner et al., 1979), Multidimensional Experiential Avoidance Questionnaire (Gamez et al., 2011), Meaning of Life Questionnaire (Steger & Shin, 2010) and Student Stress Survey (Ross, Neibling, Heckert, 1999). Data were analyzed by SPSS 23 and AMOS 23 statistical software. P-value was smaller than 0.01 in the Total Effect Model analysis and the Mediation Effect Model analysis. The results of Total Effect Model analysis showed that the variable of Stress was directly and positively correlated with the variable of Eating Disorder. Also, the results of the Mediation Effect Model analysis showed that the variable of Experiential Avoidance mediates positively and partially the relationship between Stress and Eating Disorder. The Meaning of Life mediates negatively and partially the relationship between Stress and Eating Disorder. In addition to conceptualizing Eating Disorder, this study showed the relationship between Stress and Eating Disorder and revealed the role of Experiential Avoidance and the Meaning in life as two underlying and continuing factors that should be considered in the treatment of this disorder. Manuscript profile -
Open Access Article
16 - Operational Analysis of the Buck Boost DC–DC Converter with High Step-Up Voltage Gain
M. R. Banaei H. A. Faeghi BonabIn some applications that we need a high voltage gain such as the photovoltaic cell and fuel cell, high step up dc-dc converters must be used, but conventional boost converter cannot provide the high voltage gain. For this reason, in this paper, a single switch transfor MoreIn some applications that we need a high voltage gain such as the photovoltaic cell and fuel cell, high step up dc-dc converters must be used, but conventional boost converter cannot provide the high voltage gain. For this reason, in this paper, a single switch transformerless high step-up buck boost dc-dc converter with reduced voltage stress on the semiconductors is proposed. The proposed converter has higher voltage gain in step-up mode in comparison with conventional boost and buck-boost converters. Reduced voltage stress on the active switch allows to choose lower voltage rating MOSFETs to reduce both switching and conduction losses. Low voltage stress on the diodes allows the use of Schottky rectifiers for alleviating the reverse-recovery current. The proposed converter can be operated in the continuous conduction mode (CCM) and the discontinuous conduction mode (DCM). In this paper, different operation modes of the proposed converter, calculation of the voltage gain, the currents that flow through the components, efficiency and capacitors voltage ripple are presented. To verify the operation of the proposed converter, simulation results via PSCAD software and experimental results are provided. Manuscript profile -
Open Access Article
17 - The Relationship between Stress Management Training and Employees Self-Efficacy
Nasrin Asadi Amineh Ahmadi Assadollah AbbasiThe purpose of this study was to provide a model of stress management training and its relationship with employees' self-efficacy. In terms of applied purpose, this research was a combination of exploratory data (qualitative and quantitative) and in terms of research im MoreThe purpose of this study was to provide a model of stress management training and its relationship with employees' self-efficacy. In terms of applied purpose, this research was a combination of exploratory data (qualitative and quantitative) and in terms of research implementation, it was a grounded theory approach (qualitative stage) and in terms of quantity, it was a cross-sectional survey. The study population in the qualitative section includes Professors and academic experts (psychology and social medical management specialists), according to the entry and exit criteria in the qualitative section and in the quantitative section including experts and managers who had taken stress management training. Sample size and sampling method in qualitative part based on the principle of theoretical saturation of 12 people using purposive sampling method and in quantitative part according to Cochran's formula 220 employees of Zanjan, Qazvin and Mazandaran Universities of Medical Sciences and the Ministry of Health and Medical Education in 2020 using a multi-stage sampling method. To collect data, a semi-structured interview method and a researcher-made questionnaire were used and in a quantitative section of the General Schwarvar and Jerosalm General Self-efficacy questionnaire (1992).To evaluate the validity and reliability of qualitative section data, credibility, conformability and transferability criteria were used. content validity and the opinion of several experts were used to confirm the validity of the tool in the quantitative part. The reliability of the questionnaires was calculated according to Cronbach's alpha formula. Cronbach's alpha coefficient of the researcher-made education questionnaire was 0.84 and Cronbach's alpha coefficient of 0.81 self-efficacy questionnaire, indicating that research tools have desirable reliability. In the qualitative part, the content analysis of the interviews was used to analyze the data, using the coding method (open, axial and selective coding), confirmatory factor analysis, heuristic factor analysis, structural equations and descriptive statistics were used. Then regression analysis was used to measure the relationship between coping methods with self – efficacy. The results showed that to deal with stressful situations, three basic strategies of problem-focused coping strategy, emotion-focused coping strategy and avoidance-focused coping strategy can be used for the stress management training model. In general, the components presented to deal with stressful situations have the necessary and appropriate validity, and all three main components (problem-focused coping strategy, emotion-focused coping strategy and avoidance-focused coping strategy) were in a good position to explain and fit.In this research, the questionnaire of coping with stressful conditions was valid and approved. Strategies for coping with stressful situations had a different effect on people's self-efficacy, so that problem-oriented coping strategy had a significant positive relationship with self-efficacy and the effect of problem-oriented coping strategy was on incremental self-efficacy (P <0.05). In other words, the more emphasis is placed on problem-oriented coping strategy, the more self-efficacy of individuals increases, and in contrast to emotion-focused coping strategy and avoidant-centered coping strategy has a negative and decreasing relationship with self-efficacy (P <0.05), As the emotion-focused coping strategy and avoidance- focused coping strategy highlighted ,the self - efficacy of individuals also decreased Manuscript profile -
Open Access Article
18 - An Autoencoder based Emotional Stress State Detection Approach by using Electroencephalography Signals
Jia UddinIdentifying hazards from human error is critical for industrial safety since dangerous and reckless industrial worker actions, as well as a lack of measures, are directly accountable for human-caused problems. Lack of sleep, poor nutrition, physical deformities, and wea MoreIdentifying hazards from human error is critical for industrial safety since dangerous and reckless industrial worker actions, as well as a lack of measures, are directly accountable for human-caused problems. Lack of sleep, poor nutrition, physical deformities, and weariness are some of the key factors that contribute to these risky and reckless behaviors that might put a person in a perilous scenario. This scenario causes discomfort, worry, despair, cardiovascular disease, a rapid heart rate, and a slew of other undesirable outcomes. As a result, it would be advantageous to recognize people's mental states in the future in order to provide better care for them. Researchers have been studying electroencephalogram (EEG) signals to determine a person's stress level at work in recent years. A full feature analysis from domains is necessary to develop a successful machine learning model using electroencephalogram (EEG) inputs. By analyzing EEG data, a time-frequency based hybrid bag of features is designed in this research to determine human stress dependent on their sex. This collection of characteristics includes features from two types of assessments: time-domain statistical analysis and frequency-domain wavelet-based feature assessment. The suggested two layered autoencoder based neural networks (AENN) are then used to identify the stress level using a hybrid bag of features. The experiment uses the DEAP dataset, which is freely available. The proposed method has a male accuracy of 77.09% and a female accuracy of 80.93%. Manuscript profile -
Open Access Article
19 - The Relationship between the Coping Schemas with Stress and Values in Action with Psychological Distress in the Corona Epidemic Period: The Mediating role of Resilience
mohammad mahdavi meydani Mahnaz Shahgholian Hamid KhanipourSince the corona epidemic, various studies have examined the psychological and physical effects of this disease and have considered several factors involved in the occurrence, increase and decrease of psychological distress resulting from this epidemic. The aim of this MoreSince the corona epidemic, various studies have examined the psychological and physical effects of this disease and have considered several factors involved in the occurrence, increase and decrease of psychological distress resulting from this epidemic. The aim of this study was to investigate the relationship between coping schemes with stress, virtues in action and resilience with psychological distress during the corona epidemic. 200 students (137 women and 63 men) between the ages of 20-40 were randomly selected and responded online to questionnaires of the Coping Schemas with Stress (CSI-R), Virtues in Action (VIA), Connor and Davidson's Resilience (CD-RISC) and Kessler's psychological distress (K-10). Findings showed that the mediating role of resilience in the relationship between coping schemes with stress and psychological distress is significant. Relationships between coping schemas with stress with virtues in action were also significant. The relationship between virtues in action with psychological distress was not significant. The results of the study indicate that in periods of stress and crisis, such as the Corona epidemic, programs based on promoting resilience is preferred in reducing the level of psychological distress than Programs to change coping schemas with stress and programs to promote positive virtues. Manuscript profile -
Open Access Article
20 - Effectiveness of Coping Therapy in Reducing Behavioral-Emotional Problems of Children and Maternal Stress of Their Mothers
maryam roshanParenting stress affects children as a source of pressure. Involvement of parents in coping therapy designed to help their children, can reduce these negative outcomes. The aim of the present study was to examine the efficacy of coping therapy in reducing parenting stre MoreParenting stress affects children as a source of pressure. Involvement of parents in coping therapy designed to help their children, can reduce these negative outcomes. The aim of the present study was to examine the efficacy of coping therapy in reducing parenting stress and behavioral-emotional problems in children. To do so, The Parenting Stress Index (PSI) was administered on a sample of 200 mothers. Then 51 of those who scored highest in PSI were chosen and randomly assigned to the two experimenttal (N=26) and control (N=25) groups. Both groups completed the Strenghts and Difficulties Questionnaire. Quantative data were analyzed using pretest-posttest, correlation coefficient, and multiple covariance analyses. Results indicated that after intervention, mothers in the experimental group showed lower level of stress, as compared to mothers in control group. Children of mothers in experimental group showed less behavioral problems than children of mothers in the control group. Manuscript profile -
Open Access Article
21 - Strengthening Success by Psychological Capital through Weakening Job Stress among Female Teachers
mohsen Golparvar Reza SadeghiAbstract: This research was administered with the aim of strengthening success by psycho-logical capital through weakening job stress among female teachers. The statistical population of the study consisted of female elementary school teachers in Isfahan city, of which MoreAbstract: This research was administered with the aim of strengthening success by psycho-logical capital through weakening job stress among female teachers. The statistical population of the study consisted of female elementary school teachers in Isfahan city, of which 221 teachers were selected by simple random sampling method and then responded to Psychological Capital Questionnaire (PCQ), Job Stress Questionnaire (JSQ) and Career Success Questionnaire (CSQ). Data were analyzed using Pearson’s correlation coefficient and structural equation modeling (SEM). Results revealed that there is a negative significant relationship between psychological capital and job stress, but there is a positive significant relationship between psychological capital and career success (P<0.01). Results of structural equation modeling and mediation analysis indicated that job stress is a partial mediator on the relationship between psycho-logical capital and career success. Manuscript profile -
Open Access Article
22 - Coping Styles and Critical Thinking Skills of Students with Perceived Stress of Earthquake
Fariborz NikdelThe present study aimed to investigate the relationship between coping styles and critical thinking skills of university students with their perceived stress after Yasouj earthquake (April 2018). The research method was non-experimental and correlational. Statistical po MoreThe present study aimed to investigate the relationship between coping styles and critical thinking skills of university students with their perceived stress after Yasouj earthquake (April 2018). The research method was non-experimental and correlational. Statistical population of the study consisted of students of Yasouj universities in the academic year of 2017-18. The sample of the study included 280 students selected through multistage cluster random sampling. Perceived Stress Scale (PSS), California Critical Thinking Disposition Inventory (CCTDI), and Coping Innventry for Stressful Situations (CISS) were administered. The results showed that there was a negative and significant relation-ship between problem-oriented coping style and students' perceived stress. Also, there was a positive and significant relationship between students' emotion-oriented coping style and their perceived stress. The relationship between avoidant coping style and students' perceived stress was not significant. Critical thinking had significant negative relationship with students' perceived stress. The results of step wise regression analysis showed that emotion-oriented coping style, critical thinking, and problem-oriented coping style were respectively predictors of students' perceived stress. Manuscript profile -
Open Access Article
23 - The Role of Corona Involvement Severity and Corona Stress in Predicting Oppositional Defiant Disorder Mediated by Parental Aggression
Ziba KasbiThis study was done aimed to investigate the role of corona involvement severity and corona stress in predicting oppositional defiant disorder (ODD) mediated by parental aggression. The method of this study was descriptive and path analysis. The statistical population i MoreThis study was done aimed to investigate the role of corona involvement severity and corona stress in predicting oppositional defiant disorder (ODD) mediated by parental aggression. The method of this study was descriptive and path analysis. The statistical population included all children and adolescents with ODD of Hormozgan province in 2021, whose parents requested counseling services due to their child's defiant problems that 260 subject were selected using convenience sampling method. Corona Stress Scale (CSS-18), Oppositional Defiant Disorder Rating Scale (ODDRS), Ahvaz Aggression Questionnaire (AAQ), and a researcher-made question to measure the involvement severity of corona disease were used for gathering data. Data Analyzing was conducted with Pearson correlation and path analysis and also SPSS-26 and AMOS-23 software. The results showed that the involvement severity with corona disease (0.20), corona stress (0.27) and aggression (0.25) can predict the symptoms of ODD. The involvement severity with corona disease (0.33) and corona stress (0.32) can predict aggression. The involvement severity with corona disease (0.08) and corona stress (0.08) can indirectly predict the syndrome of ODD through the mediation of aggression. According to the findings, it can be concluded that the corona involvement severity and corona stress in parents can directly and indirectly develop the symptoms of ODD in children by increasing aggression in parents. Manuscript profile -
Open Access Article
24 - Wellbore Stability Analysis During Drilling Using Geomechanical Model and FLAC3D Software in Asmari Reservoir, Ahwaz Oil Field
Mohammad میرانیAbstract Oil reservoirs are one of the important sources of energy due to which is caused by specific rock mechanical properties, the ability to maintain hydrocarbon fluids. One of the major problems that are occurred during drilling a well is instability of the well MoreAbstract Oil reservoirs are one of the important sources of energy due to which is caused by specific rock mechanical properties, the ability to maintain hydrocarbon fluids. One of the major problems that are occurred during drilling a well is instability of the wellbore. In order to prevent this difficulty its need to predict stability of the rocks by using geomechanical properties and in-situ stresses. A lack of accurate wellbore stability analysis brings many problems such as borehole washout, breakout, collapse, stuck pipes and drill bits. In the present research work the stability of an oil well located in Asmari reservoir of Ahwaz oil field was stimulated by using numerical software FLAC3D and information obtained from well log curves were evaluated and analyzed in two parts and the results were presented. Mud pressure and mud weight in outset of wellbore plastic flow and also outset of shear failure in wellbore were obtained for 7.5 meter of formation which mainly consists of limestone, marl. Well stability analysis was performed in vertical direction, minimum horizontal stress and maximum horizontal stress. Due to plastic movement and shear failure in wellbore, in first stage the mud pressure occurred is 33 and 26.4 Mpa and the second stage it reaches to 45 and 30 Mpa, respectively.It indicates that tensile failure is in direction of maximum horizontal stress and shear failure in direction of minimum horizontal stress. Subsequently, the result shows that the analysis due to the low mechanical properties of the sandstone layer indicates the maximum amount of displacement and loss. The safe mud window is small in this layer. Manuscript profile -
Open Access Article
25 - Determination of In-situ stress in the Marun oilfield’s failure wells
میثم فارسی مدان مرتضی احمدی کاوه آهنگری جاسم دشت بزرگیAbstract Determination of In-situ stress domain in oilfields is so important for drilling, well completion and petroleum geomechanics. Simply, determination of magnitude and direction of In-situ stress around wellbore is the first step of geomechanical studies and we MoreAbstract Determination of In-situ stress domain in oilfields is so important for drilling, well completion and petroleum geomechanics. Simply, determination of magnitude and direction of In-situ stress around wellbore is the first step of geomechanical studies and wellbore stability particularly. Preliminarily, because of importance of casing collapse problem in the Marun oilfield, the magnitude of in-situ stress is determined. The magnitude of vertical stress (Sv) was in range of 85 to 90 MPa. The minimum horizontal stress (Shmin) determined by some analytical methods. For estimating of maximum horizontal stress (SHmax) domain we used Anderson’s faulting theory and stress polygon. So the magnitude of SHmax was so close to Sv and the faulting regime shows normal/strike slip. Within Gachsaran Formation in depth of collapses because of salty lithology and high pore pressure, magnitude of In-situ stress is so close and it can be assume hydrostatic stress state. Manuscript profile -
Open Access Article
26 - The effectiveness of mindfulness-based cognitive therapy on Stress Management, Problem Solving Skills of Mothers with Mentally Disabilities Children
azam mohammadi ali rezaie Fatemeh IzadiThe aim of this study was to investigate the effectiveness of mindfulness-based cognitive therapy on stress management and problem solving skills of mothers with mentally Disabilities children aged 7 to 12 years in Najafabad. The research design was quasi-experimental a MoreThe aim of this study was to investigate the effectiveness of mindfulness-based cognitive therapy on stress management and problem solving skills of mothers with mentally Disabilities children aged 7 to 12 years in Najafabad. The research design was quasi-experimental and pre-test post-test with the control group. In this study, purposive sampling method was used. For this purpose, from the statistical population of this study that all mothers with mentally Disabilities children were studying in the exceptional school of Shahid Sarban 2 in Najafabad in 2016-2017, based on the inclusion and exit criteria, 30 people were selected and randomly divided into two experimental groups. And controls were replaced. The instruments used in the present study were: Standard Questionnaire of Stress Management Strategies Scale Cobain et al. (1990), Hepnopperson Problem Solving Questionnaire (1982). After applying the independent variable on the experiment group, both groups were tested again by the tests; The results were analyzed by SPSS software and analysis of covariance. The results showed that mindfulness-based cognitive therapy had an effect on increasing stress management and increasing mothers' problem-solving skills in the experimental group in the post-test phase and the changes in the experimental group were statistically significant compared to the control group (P <0.05). Treatment of stress management components such as optimism, time management, recreational activity, and relaxation has also been significant. In problem-solving skills, it has been significant in the components of tendency-avoidance and personal control style. Manuscript profile -
Open Access Article
27 - Design and test a model of personality relationship with corona dissease anxiety mediated by perceived stress and self-efficacy in adolescents
Elahe Aslami Farzaneh Khani Mehrabadi Azam TadayonThis study aimed to investigate the relationship between personality traits and Corona disease anxiety by the mediating effect of perceived stress and self-efficacy among adolescents. Method: In this descriptive correlational study, the statistical population comprised MoreThis study aimed to investigate the relationship between personality traits and Corona disease anxiety by the mediating effect of perceived stress and self-efficacy among adolescents. Method: In this descriptive correlational study, the statistical population comprised high-school students in Abarkooh (Iran), of whom 318 were selected via random cluster sampling. The Corona Disease Anxiety Scale (Alipour et al. 2019), the five-factor NEO Personality Inventory (Costa & McCrae, 1992), The Perceived Stress Scale (Cohen et al. 1983), and The Self-Efficacy Scale (Sherer et al. 1982) were employed. The proposed model was evaluated by path analysis in AMOS and SPSS. Resalts: The results of direct hypotheses showed that agreeableness, conscientiousness and self-efficacy had a negative and inverse effect and perceived stress had a positive and direct effect on Corona disease anxiety. The results of the study of indirect hypotheses showed that conscientiousness had an indirect and inverse effect on corona disease anxiety mediated by stress and self-efficacy, and neuroticism, extraversion, and conscientiousness had an indirect effect on corona disease anxiety through perceived stress. Conclusion: Therefore, it is possible to reduce the level of corona disease anxiety in adolescents by strengthening self-efficacy as a coping resource and teaching stress management to adolescents and their effect on neuroticism, extraversion and conscientiousness, and use the obtained results in therapeutic interventions. Manuscript profile -
Open Access Article
28 - Effect of Aerobic Training along with Garlic on Oxidative Stress Index in Obese Women with High Blood Pressure
Ghasem Torabi Palat Kaleh Mostafa Kazemi Ahmad Abdi Asieh Abbassi Daloii Masoomeh Alsadat MirshafaeiBackground: A large amount of evidence shows that oxidative stress plays a central role in hypertension pathophysiology. The aim of this study was to examine effect of aerobic training along with Garlic on oxidative stress index in obese women with high blood pressure. MoreBackground: A large amount of evidence shows that oxidative stress plays a central role in hypertension pathophysiology. The aim of this study was to examine effect of aerobic training along with Garlic on oxidative stress index in obese women with high blood pressure. Materials and Methods: In this clinical trial study, 36 postmenopausal obese women with hypertension were purposefully and accessibly selected from Sari and were simple randomly divided into four groups Control (C), Aerobic Training (AT), Garlic (G) and Aerobic Training +Garlic (ATG). The training groups participated in a progressive aerobic training for eight weeks, three sessions a week (55% to 65% of the reserved heart rate and for 30 to 55 min). The groups of G and ATG were provided 1000 mg of garlic supplement for eight weeks (After breakfast and dinner). Two days before and after the protocol, blood samples were taken in fasting state. SPSS 16.0 software was used for statistical analysis. Data were analyzed using ANCOVA at p<0.05. Results: The results showed that the levels of malondialdehyde (MDA) (P=0.0001) decrease significantly in the experimental groups. Also, superoxide dismutase (SOD) (P=0.001), glutathione peroxidase (GPX) (P=0.000) and catalase (CAT) (P=0.001) in the experimental groups increased significantly compared to the C group. The amount of SOD, GPx and CAT in the ATG group was significantly higher than the AT and G group (p≤0/05). Conclusion: It seems that AT and G has interactive effects on reducing Oxidative Stress in obese women with high blood pressure. Manuscript profile -
Open Access Article
29 - Investigating the relationship between social support and social stigma among high school teachers in Yasouj city
Habib Ara Saeed Saeedi JoIt seems that the more social support and strength a person has in social stigmas, dealing with life's problems and stresses, the less he is exposed to mental and emotional disturbances and benefits from higher mental health and well-being. The relationship between soci MoreIt seems that the more social support and strength a person has in social stigmas, dealing with life's problems and stresses, the less he is exposed to mental and emotional disturbances and benefits from higher mental health and well-being. The relationship between social support and social stigma among high school teachers in Yasouj city was investigated. The research method of this research was descriptive of the correlation type and the statistical population included all high school teachers in Yasouj city. From the mentioned society, 100 people were selected from the society by the accessible method and the society was selected by cluster random sampling. To collect the research data, questionnaires of social support questionnaire, standard questionnaire of internal stigma of mental patients were used and the results were analyzed using statistical methods of correlation coefficient, linear regression and structural equations. The research findings showed that there is a significant positive relationship between social support and social stigma among high school teachers in Yasouj city. Manuscript profile -
Open Access Article
30 - Investigating the relationship between learning styles and academic achievement of Yasouj fifth grade students
Jan Mohammad NikoyiEducation is defined as the creation of learning environments in which the activities required by learners to build knowledge and thinking ability are maximized. The purpose of this research was to determine the relationship between learning styles and academic progress MoreEducation is defined as the creation of learning environments in which the activities required by learners to build knowledge and thinking ability are maximized. The purpose of this research was to determine the relationship between learning styles and academic progress and stress of fifth grade elementary school students in Yasouj. The statistical population of the research included 100 male and female students of the fifth grade of Yasouj elementary school in the academic year of 1400. The research method was a descriptive survey, and the data collection tool was a questionnaire of learning styles and students' academic grades. The data was analyzed using the statistical methods of Pearson's correlation coefficient and multiple regression. The results showed that learning style has a significant relationship with students' academic progress. Based on this finding, we conclude that learning style and academic progress are completely interdependent.. Manuscript profile -
Open Access Article
31 - The Effectiveness of Combined Program of Parent Management Training and Parenting based Acceptance and Commitment Therapy on Parental stress, Parent-Child relationship and Child’s Externalizing Problems
Farzaneh Kosari parviz sabahi shahrokh makvandhosseiniThis research was conducted to determine the effectiveness of the combined program of parent management training and parenting based acceptance and commitment therapy on parental stress, parent-child relationship, and child's externalizing problems.The research was semi MoreThis research was conducted to determine the effectiveness of the combined program of parent management training and parenting based acceptance and commitment therapy on parental stress, parent-child relationship, and child's externalizing problems.The research was semi-experimental in the form of a pre-test, and post-test design with a control group and a three-month follow-up. The research community was the mothers of children aged 4 to 9 years in Semnan city in 1400. 24 mothers were selected by the available sampling method and randomly divided into two experimental and control groups. The experimental group received 8 two-hour intervention sessions while the control group was on the waiting list. The research tools were Abidin's parenting stress index, Pianta's parent-child relationship scale, and Eyberg's child behavior questionnaire. The data were analyzed by multivariate covariance analysis. The results showed that there is a significant difference between the experimental and control groups in the parental stress, parent-child relationship, and the child's externalized problems. Only in the dependence subscale, it can be seen that this difference is not significant. This combined program can be effective in reducing parenting stress and externalizing problems of the child and reduce conflicts between parents and children and bring closer their relationship, but it is not effective in the degree of parent-child dependence. Manuscript profile -
Open Access Article
32 - Explaining the factors affecting academic work ethics Mohagheg Ardabili University Society
abazar ashtari Taha AshayeriThe main purpose of the reseaThe main purpose of the research is to study the factors affecting academic work ethics in the academic community of Mohaghegh Ardabili (1401- 1400). The research method is survey type (quantitative), questionnaire, its statistical populatio MoreThe main purpose of the reseaThe main purpose of the research is to study the factors affecting academic work ethics in the academic community of Mohaghegh Ardabili (1401- 1400). The research method is survey type (quantitative), questionnaire, its statistical population is 6000 people, of which 384 people are distributed among them in a Cochrane and random cluster method. Validity and reliability of the research has also been confirmed. The results show that there is a significant difference in the level of work ethic according to the marital status, and its value among the married group (1,8) differs more than the others according to the level of education, and its value among the group with a doctorate level of education (2,1) compared to others. There are more academic groups. The level of work ethic varies according to the type of job, and its value is higher among the occupational group of teachers (2,6) and students (2,2) than other occupational groups. The level of work ethic varies according to the type of class and its value is higher among the upper class (3,1) than the middle and lower class. The results show that between job satisfaction (0,35); Job stress (-0,31); Job burnout (-0,34); organizational commitment (0,56); Organizational identity (0,30) and religious beliefs (0,28) have a significant relationship with work ethics. The regression results show that the multiple correlation coefficient equals 0,601; The explanatory coefficient is equal to 0.532 and the corrected explanatory coefficient is equal to 0,483.rch is to study the factors affecting academic work ethics in the academic community of Mohaghegh Ardabili (1400-1401). The research method is survey type (quantitative), questionnaire, its statistical population is 6000 people, of which 384 people are distributed among them in a Cochrane and random cluster method. Validity and reliability of the research has also been confirmed. The results show that there is a significant difference in the level of work ethic according to the marital status, and its value among the married group (1.8) differs more than the others according to the level of education, and its value among the group with a doctorate level of education (2.1) compared to others. There are more academic groups. The level of work ethic varies according to the type of job, and its value is higher among the occupational group of teachers (2.6) and students (2.2) than other occupational groups. The level of work ethic varies according to the type of class and its value is higher among the upper class (3.1) than the middle and lower class. The results show that between job satisfaction (0.35); Job stress (-0.31); Job burnout (-0.34); organizational commitment (0.56); Organizational identity (0.30) and religious beliefs (0.28) have a significant relationship with work ethics. The regression results show that the multiple correlation coefficient equals 0.601; The explanatory coefficient is equal to 0.532 and the corrected explanatory coefficient is equal to 0.483. Manuscript profile -
Open Access Article
33 - The Mediating Role of Psychological Distress in the Relationship between Inferential Confusion and Obsessive-Compulsive Symptoms
Zahra Khosravi Roubiat Mahmoud NajafiThe purpose of the present study was to investigate the mediating role of psychological distress (depression, anxiety and stress) in the relationship between inferential confusion and obsessive-compulsive symptoms. The research method was descriptive-correlational (path MoreThe purpose of the present study was to investigate the mediating role of psychological distress (depression, anxiety and stress) in the relationship between inferential confusion and obsessive-compulsive symptoms. The research method was descriptive-correlational (path analysis) and the statistical population of the study was all Social network users (between 20 to 50 years old) in mashhad in year 2022. Using the available sampling method, 345 subjects participated in the research through an online survey. The instruments used in this study include Obsessive-Compulsive Insentory-Revised (OCI-R), Depression, Anxiety, and Stress Scale (DASS-21), and Inferential Confusion Questionnaire (ICQ-EV). Data analysis done through Pearson correlation coefficient and path analysis. The findings showed that inferential confusion has a direct and significant relationship with obsessive-compulsive symptoms. Also, psychological distress had a mediating role in the relationship between inferential confusion and obsessive-compulsive symptoms and the model has a good fit. According to the research results and the mediating role of psychological distress in the relationship between inferential confusion and obsessive-compulsive symptoms, In condition of high psychological distress, the relation of inferential confusion with obsessive-compulsive symptoms is stronger than when the components of depression, anxiety and stress are low. Also, planning to reduce psychological distress can be effective in reducing the effect of inferential confusion on obsessive-compulsive symptoms. Manuscript profile -
Open Access Article
34 - A review of methods for determining contact stress in polymer base gears
Rasool MolhsenzadehBasically, gears are an evolved form of friction wheels that have teeth added to them to prevent slippage and ensure relative motion uniformity. The use of polymer gears is increasing due to advantages such as corrosion resistance, injection molding capability, operatio MoreBasically, gears are an evolved form of friction wheels that have teeth added to them to prevent slippage and ensure relative motion uniformity. The use of polymer gears is increasing due to advantages such as corrosion resistance, injection molding capability, operation without lubricants and low noise. However, the mechanical strength, thermal resistance and durability of polymer gears are lower than metal gears. The locking mechanism in metal gears is different from polymer gears. Among the important damages that lead to failure of polymer gears is thermal deformation, which does not exist in metal gears. In polymer gears, due to the viscoelastic and plastic nature of polymers, a lot of heat is generated during gear engagement and the temperature increases. An increase in temperature causes the ribs to soften and, as a result, change their shape. Pitting, fatigue and wear are other factors that lead to failure of polymer gears. The contact stress resulting from the torque applied to the gear plays the most important role in the intensity of each of the mentioned delays. Investigating the contact stress in polymer gears, including the challenges of industrialists and researchers, will provide a better understanding for the better design of these types of gears, as well as life expectancy. This research is a review of various methods for determining and checking contact stress, including Hertz numerical model, standard method and finite element method. Manuscript profile -
Open Access Article
35 - The relationship between big 5 personality traits and job satisfaction: the mediating roles of perception of procedural justice and job stress
leila Fathi Mohammad Naghy Farahani Hamid KhanipourThe aim of this paper is to investigate relations between an isolated dimension of Big Five personality traits and job satisfaction and the mediating effects of procedural justice and job stress on this relationship .Data was gathered via a questionnaire in a corre MoreThe aim of this paper is to investigate relations between an isolated dimension of Big Five personality traits and job satisfaction and the mediating effects of procedural justice and job stress on this relationship .Data was gathered via a questionnaire in a correlational study of Big Five Inventory (21 items), Minnesota Job Satisfaction scale (19 items), Gray Taft-Anderson nursing stress scale (34 items) and Niehoff-Moorman organizational Justice (in the latter only the 6 items concerning procedural justice were used). data was analyzed by using SPSS v26 and PLS-SEM v3. It was found that across the traits, agreeableness and openness to experience had the strongest relationship with job satisfaction, while the others did not have any relationship with job satisfaction. Procedural justice completely mediated the association between agreeableness and job satisfaction, and it was true about job stress as the mediating between big 5 and job satisfaction. despite the supposed path for the relationship between big 5 personality traits and job satisfaction through simultaneous effect of the two mediating variables of perception of procedural justice and job stress on job satisfaction, the mentioned path was not realized and had no effect in the model. job stress had statistically significant effect on job satisfaction and the same was true between perception of procedural justice and job satisfaction. Manuscript profile -
Open Access Article
36 - Investingation of the effectiveness of transdiagnostic Emotion Efficacy Therapy in Cardiovascular Reactions and Quality of Sleep in war-Related Post Traumatic Stress disorder
Jafar Mirzaee Mohammad hatami Jafar HasaniThis study has been done with aim of effectiveness trans diagnostic therapy based on emotion efficiency, cardio-vascular reaction, sleep quality and psychological flexibility of the prisoners with PTSD. The research method was semi-exprimental with pre-test, post-tes MoreThis study has been done with aim of effectiveness trans diagnostic therapy based on emotion efficiency, cardio-vascular reaction, sleep quality and psychological flexibility of the prisoners with PTSD. The research method was semi-exprimental with pre-test, post-test and the control group with monthly period follow-up. The statistical population included all patients referred to Sadr psychiatry hospital in Tehran in the years 1400-1401, from which 30 people were selected in an accessible and purposeful manner and randomly assigned to exprimental (n=15) and control (n=15) groups In order to gathering data, efficiency emotion scale (EES-2), depression scale, anxiety and stress (DASS-21), psychological flexibility form and Pitesbourg sleep quality index (PSQI) and estimate vital signs by pressure gauge device were used Data were analysed using repeated measures analysis of variance The result of analysis showed that, there was significant difference between the exprimental group and control group in terms of dependent variable in pre-test phase towards post-test in monthly period follow-up The examination of the follow-up periods showed that, there was no significant difference between monthly follow-up and post-test periods. The presistence of the treatment effect over time and a month after end of meetings From the above findings, it can be concluded that, transdiagnostic therapy based on emotion efficiency has been a remarkable effect on decrease of depression, anxiety, stress and cardio vascular reaction signs and less effectiveness in psychological flexibility. Manuscript profile -
Open Access Article
37 - Relationship Between Perceived Stress And Craving Usage with Predicting Relapse in Stimulants Users Mediated By Self-Control
roya jalili Javad KHalatbari Hassan Ahadai shohreh ghorban shiroudiThe purpose of the present study was to investigate the relationship between perceived stress and craving for consumption with predicting people's return to stimulants with the mediation of self-control. This research was method descriptive-correlative. The statistical MoreThe purpose of the present study was to investigate the relationship between perceived stress and craving for consumption with predicting people's return to stimulants with the mediation of self-control. This research was method descriptive-correlative. The statistical population of this research included all people who used stimulants, hospitalized in care centers in Tehran in 1400 (2019). For sample selection, 250 persons were randomly selected based on the structural modeling formula. In order to collect information, Cohen's Perceived Stress Scale, Franken's Substance Craving, Wright's Substance Return Prediction and Tanji's Self-Control Scales were used. The analysis of the research data, using the path analysis method, showed that there is a positive and significant relationship (P<0.01) between perceived stress and predicting return to stimulants with the mediation of self-control and between drug craving and predicting return to stimulants with The mediation of self-control. Also, there were a negative and significant relationship (P<0.01) between self-control and predicting return to stimulants. Thus, it can be concluded that with increase in perceived stress and the urge to use, the return to use of stimulants increases and the amount of self-control decreases, and with decrease of self-control, the return to use of stimulants increases. Manuscript profile -
Open Access Article
38 - The combined effectiveness of compassion focused therapy and acceptance and commitment therapy on adherence to treatment and parental stress in mothers of autistic children
ali rezaie Fatemeh IzadiThe present study was conducted with the aim of investigating the effectiveness of combined compassion-focused therapy and acceptance and commitment therapy on Adherence to treatment and Parenting Stress in mothers of autistic children in Khomeinishahr city in 2023. The MoreThe present study was conducted with the aim of investigating the effectiveness of combined compassion-focused therapy and acceptance and commitment therapy on Adherence to treatment and Parenting Stress in mothers of autistic children in Khomeinishahr city in 2023. The research was semi-experimental in the form of pre-test-post-test with a control group. In this research, the purposeful sampling method was used, and from the statistical population, which consisted of all mothers with autistic children in Khomeinishahr, whose children were being educated at the Sarai Pakan center, 30 people were selected based on the inclusion criteria and randomly replaced in two experimental and control groups. The tools were Parental Stress Questionnaire (PSI) (Abidin, 2018) and Adherence to treatment Questionnaire (Madanlu, 2012). After the pre-test, the experimental group was trained in 10 sessions of 90 minutes. Then, both groups were re-evaluated; The results were analyzed with spss software and covariance method. The results showed that the implemented treatment had an effect on the Adherence to treatment and parental tension in the post-test stage and the changes in the experimental group were statistically significant compared to the control group. (P<0.05) Also, the treatment was effective on the components of adherence to the treatment, integration with life, commitment to treatment and resourcefulness in the implementation of the treatment, and also on the components of parental stress, except relations with spouse, competence, depression, social isolation and reinforcement have been significant. Manuscript profile -
Open Access Article
39 - Investigating the Relationship Between Rumination and Perceived Stress with Life Satisfaction in Married Women in Shiraz
Fatemeh Dinakani reza chalmeh fatemeh abdolahi<p>The aim of the present research was to explain the relationship between rumination and perceived stress with life satisfaction in married women in Shiraz. The research method was a descriptive and survey-based. The statistical population included all the women of Shi More<p>The aim of the present research was to explain the relationship between rumination and perceived stress with life satisfaction in married women in Shiraz. The research method was a descriptive and survey-based. The statistical population included all the women of Shiraz city, and 210 individuals were selected as the statistical sample size using a convenience sampling. Data were collected using the Hoeksma and Maro's Rumination Questionnaire (1991), Cohen et al.'s Perceived Stress Questionnaire (1983) and Diener Ammons Larsen and Griffin's Life Satisfaction Questionnaire (1985). The findings revealed that among the dimensions of rumination, the two components of preoccupation and depression had a negative and significant relationship with life satisfaction. However, there was no significant relationship between reflection and life satisfaction. In conclusion, the overall score of rumination was negatively and significantly related to life satisfaction, and ultimately, perceived stress is not a significant predictor of life satisfaction.</p> Manuscript profile -
Open Access Article
40 - A review of polymer bonded explosive rheology
Mahmoud HeydariPolymer-bonded explosives are widely used in defense and commercial industries. In this type of explosive, very high amounts of explosive crystals (about 90% by weight) are surrounded by a polymeric binder (about 10%), which leads to a decrease in sensitivity and a sign MorePolymer-bonded explosives are widely used in defense and commercial industries. In this type of explosive, very high amounts of explosive crystals (about 90% by weight) are surrounded by a polymeric binder (about 10%), which leads to a decrease in sensitivity and a significant increase in safety during application and storage. These mixtures are molded in different ways, such as pressing, casting, extrusion, and injection. Studying the rheology of these mixtures with a high percentage of solid loading leads to finding the appropriate quality control method at different production stages. The first step was to review studies on alternatives to simulating explosive rheological behavior, such as dechlorane, calcium carbonate, sugar, etc. The general behavior of simulated mixtures, such as yield stress, shear rate dependence, time dependence, etc., is compared with original explosive. The results showed that despite the similarity in some rheological behaviors, it is impossible to predict and study all the rheological behaviors of polymer-bonded explosives using simulating materials. This paper discusses factors affecting the rheology of polymer-bonded explosives, such as particle size distribution, modification of explosive crystal surfaces, and plasticizer. A review of scientific sources showed that using a wide distribution of explosive crystal particles compared to a narrow distribution led to a significant reduction in viscosity and dependence on shear rate and time. The absence of strong interactions between crystal particles and polymer binder leads to no observation of quasi-solid behavior even in 85% by weight of explosive crystals such as octogen in hydroxyl-terminated polybutadiene Manuscript profile -
Open Access Article
41 - The Relationship Between Self-Compassion and Cognitive Evaluation with Stress Habits in Women with Multiple Sclerosis
Zohreh Pourmirza Leilakouhi Sirvan Asmaei Amajd<p>One of the major challenges in modern societies caused by the industrial lifestyle is inefficient evaluations when facing challenges and tensions, leading to stress. Therefore, identifying stress-inducing factors in various diseases is clinically significant. This st More<p>One of the major challenges in modern societies caused by the industrial lifestyle is inefficient evaluations when facing challenges and tensions, leading to stress. Therefore, identifying stress-inducing factors in various diseases is clinically significant. This study aimed to examine the relationship between cognitive evaluation, self-compassion, and stress habits among women with multiple sclerosis (MS). It is a cross-sectional applied study categorized as descriptive-correlational research. The participants consisted of 130 women with MS. Data analysis was performed using regression tests and SPSS software. Data were collected using the Self-Compassion Questionnaire, the standard Kooadrun stress measurement, and the Gross and John cognitive evaluation test. Variables such as stress habits, cognitive evaluation, and self-compassion significantly influenced the regression equation (p≤0.01), explaining 43.5% of the variance in stress habits. The prediction of stress habits based on a lack of self-kindness showed a direct relationship with a beta coefficient of 0.637. Additionally, self-kindness was positively related to stress habits, while self-compassion showed a negative significant relationship at the 0.01 level. Cognitive evaluation and its dimensions were also significant at the 0.05 level. It is recommended to implement compassion-based therapies, emotional management training, mindfulness exercises, relaxation techniques, identification of negative automatic thoughts, replacement with positive thoughts, and social support networks effective in stress management and emotional regulation training in cognitive evaluations to control stress among people with MS.</p> Manuscript profile
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