mohammadali goudarzi

One of the prominent effects of free radical activity in the body is damage to biological and vital molecules such as nucleic acids, proteins and lipoprotes. So, free radicals, especially reactive oxygen species, play an important role in medical issues. Using compounds that neutralize free radicals, i.e. antioxidants, is a suitable choice to minimize the damage caused by their production. Herbs are recognized as rich sources of antioxidants and consumption of these plants can be effective for human health. The present study was conducted to evaluate the antioxidant property of native medicinal plants including Babouneh shoshi, Anthemis Susiana Nabelek, Ghodoumeh dokhtari, Alyssum campestre, and Kangar, Gundelia tournefortii in Ilam Province, Iran. Total antioxidant capacity was measured using at 570 nm with the enzyme-linked immunosorbent assay (ELISA). The results showed that the total antioxidant capacities of Babouneh shoshi, Ghodoumeh dokhtari, and Kangar are 4.29, 1.01 and 1.25 mmol Fe2+ L-1, respectively. Generally, there are several natural antioxidant compounds in Iranian medicinal herbs which made them as reliable sources for therapeutic purposes. The essential oils of these plants are the source of herbal secondary metabolites with antioxidant and antimicrobial effects that are recommended for their use in the food, pharmaceutical, and health industries.

There is an increasing attention to using medicinal plants due to their beneficial effect on human health. The antioxidant properties of medicinal plants have prompted investigators to use them in the food and pharmaceutical industries. Hence, in this study we sought to evaluate antioxidant properties of Mentha longifolia, Pistacia khinjuk and Eucalyptus globulus. Aerial parts of these plants were dried and ground. Then, plant samples were prepared using homogenizing plant powders in methanol solution. Finally, the total antioxidant capacity of the plants was assessed by ferric iron reducing antioxidant power (FRAP) assay. The results showed that the total antioxidant capacity was found as 2.21, 0.78 and 7 mmol Fe2+ L-1 for P. khinjuk and E. globulus, respectively. Based on our findings, these plants showed a potent antioxidant activity. It is recommended that utilization of M. longifolia, P. khinjuk and E. globulus in food and pharmaceutical industries could possibly possess beneficial health effects.

This research has been done with goal of checking relation of identity styles and self-acceptance with suicidal thoughts among Shiraz university students. Statistical population was consists of 300 students from six departments of Shiraz University in the academic year of 2019-2020, that were chosen as the samples of the study by the way of measure of multistage cluster. The instruments of the study were as follow: the questionnaire of Berzonski's styles of identity, the questionnaire of self-acceptance, and the scale of Beck's idea of suicide. Data was analyzed by Pearson correlation test and the analysis of multiple regressions at the same time and step by step. The results showed that there is a meaningful and negative relationship between informative and normative identity styles with suicidal thoughts (p<0/01). And also a meaningful and positive relationship between avoidable deuced identity style suicidal thoughts (p<0/01). Besides, there is a meaningful and negative relation between unconditioned self-acceptance and suicidal thoughts (p<0/01). Results also demonstrated that informative and normative identity styles and unconditioned self-acceptance are negative anticipator of suicidal thoughts; and avoidable deduced identity styles is positive anticipator of suicidal thoughts.

The purpose of the present study was to identify the dimensions of self-development of university employees and their relationship with the learning agility of Tehran University employees on the campus of the social and behavioral sciences. It is an exploratory mixed method study. In the qualitative part, meta-composition was used, and with the aid of Sandelowski and Barroso’s (2007) model, 60 related scientific research documents were analyzed from among 410 titles, and more than 410 open codes were identified. In 2021–2022 there were 197 members of the social and behavioral sciences campus research community at Tehran University. 127 individuals from seven faculties were selected by straightforward random sampling. In the qualitative part, the composite form was utilized, whereas in the quantitative part, the self-development and learning agility questionnaire created by the researcher was used. The findings reveal the existence of four dimensions, namely psychological, behavioral, affective, and moral self-development. Using Lisrel8.8 software, a self-developed measurement model was created with the aid of structural modeling, demonstrating the model’s excellent fit with the data. Learning agility has a correlation coefficient of 0.72 with self-development. Employee learning agility was significantly related to psychological self-development with a coefficient of 0.72, emotional self-development with a coefficient of 0.63, behavioral self-development with a coefficient of 0.67, and moral self-development with a coefficient of 0.59. In general, it is possible to assert that self-development consists of four essential dimensions, and that all of these dimensions have a positive and significant relationship with the learning agility of employees.

Ground-supported cylindrical tanks are used to store a variety of liquids, e.g., water for drinking and fire-fighting, crude oil and liquefied natural gas. Tanks are critical components of modern industrial facilities and life-line systems, and must be designed to withstand safely the earthquakes to which they are subjected. The failure of such systems may lead to environmental hazard, loss of valuable contents, and disruption of fire-lighting elements following destructive earthquakes. Water storage tanks in particular, are important to the continued operation of water distribution systems in the event of earthquakes. Recent earthquakes have shown liquid storage tanks to be vulnerable to damage. Elasto-plastic shell buckling which is called “Elephant’s Foot” Buckling (EFB) has been the critical aspect in the earthquake resistant design or retrofit of steel, cylindrical tanks. In this paper, an innovative method based on using seismic energy absorbing connection at the base of tank wall is introduced to protect the liquid storage tank against seismic loads. In this method, the tank wall is fully disconnected from the base plate and the special connection is provided at the bottom of the tank. The connection is supported by a ring of rigid foundation and the base plate is supported directly on the ground. The seismic performance of the method is numerically examined for one broad and one slender steel tank. It is shown that this method can prevent the EFB of the tank wall by using the plastic deformation of the connection. Numerical results confirm the efficient performance of the proposed system to reducing seismic vulnerability of shell tanks.

The seismic response of aboveground liquid storage tanks isolated by the proposed vertical isolation system (VIS) is investigated under near-fault and far-fault ground motions. For this purpose, a set of 14 ground motions including seven far-fault and seven pulse-like near-fault motions have been considered. Effectiveness of VIS is evaluated theoretically and numerically in selected tanks with different geometries including Short-Broad, Tall-Broad, Short-Slender, and Tall-Slender. In the proposed isolation system, the tank shell is detached from the base and supported on a ring of vertical isolators, and then the forces in the vertical direction caused by the overturning moment are isolated as an alternative to the common horizontal system used for shear base isolation of storage tanks. The equations of motion for a liquid tank equipped with the proposed system were extracted using the mass-spring simplified model of contained liquid. A study was performed by employing the non-linear solution of the governing equations and the effectiveness of the proposed system for selected tanks is discussed. To measure the effectiveness of the isolation system, the seismic response of isolated steel tanks is compared with that of the non-isolated (or fixed-base) tanks. The results of this study demonstrate the influence of the tank's geometries, characteristics of the isolation system, and input excitation features. These parameters should be reasonably selected to achieve the maximum mitigation of seismic responses in the tanks equipped with the VIS. Excitation parameters, PGV/PGA ratio of input records, and pulse period in two sets of ground motions are defined to recognize the variety of responses. It is confirmed that the VIS performs well under both near and far-fault motions but near-fault earthquakes amplify the seismic responses more than the far-fault records especially in broad tanks.

Adolescents' evaluation from their physical appearance is the most important variable in predicting their perception about themselves, because the first dimension of identity formation in humans is body perception and body identity. The purpose of the current study was to examine the structural model of attitudes toward body image according to attachment styles with the mediating role of socio-cultural attitudes toward the self-image and self-acceptance among adolescent girls. The type of the current descriptive research was correlation in the realm of structural equations. The statistical population of the study included all adolescent girls in Isfahan, 567 of whom participated in the study through cluster random sampling. In order to collect data the Multidimensional Body–Self Relations Questionnaire (1997), Collins' Attachment Style Questionnaire (1990), Sociocultural attitudes towards appearance (1995) and Self-Acceptance Questionnaire (2001) were used. To analyze the data, the structural equation method was applied through AMOS software. The results demonstrated that attachment styles, self-acceptance and socio-cultural attitudes toward appearance have a direct effect on body image (p <0.05) and attachment styles mediated by self-acceptance and socio-cultural attitudes toward appearance have indirect effect on attitudes toward body image (p <0.05). The results indicated that the presented model has a good fit and the role of the of mediating variables in attitudes to body image was confirmed. Thus, in the domain of attitude toward body image, the attachment style and socio-cultural attitude toward appearance and self-acceptance should be marked by schools, counseling centers and beauty centers.

In this study, a displacement monitoring technique using an economy camera based on the vision-based method is proposed and developed. The structural displacement can be extracted by utilizing an ordinary shiny device that is attached to one of the elements of the structure and monitoring its motion by an economy video camera. In the proposed vision-based methodology, shiny targets such as LED targets are used to obtain more high-quality images with higher contrast that lead to getting better displacement recording from the captured video. First, a LED centroid recognition and scaling method are described to obtain the time history of structural movements due to the ambient vibration. Next, the natural frequencies of the structure can be determined by utilizing different classical system identification methods in the frequency domain and time domain, like the Peak Picking method and the SSI method. Finally, as a case study, the proposed methodology used for the Tabiat bridge in Tehran, which is a three-dimensional steel truss bridge for pedestrians over a heavy traffic highway, the results are compared with those obtained from the high-accurate and expensive wireless seismic sensors. The results show that although the vision-based proposed technique is a fast and low-cost method, it can investigate the dynamic characteristics of the structure with reasonable precision.

Fluid storage tanks are one of the most important components of vital arteries that play a key role in various water and industry networks, including oil, petrochemical, and water transmission systems. A study of seismic damage reports of tanks in previous earthquakes shows that one of the major damages in reinforcement concrete tanks that are commonly used to store water is cracking and liquid leakage. Therefore, in the present paper, the analysis and evaluation of ground concrete tanks are investigated to develop the fragility curve for these tanks. For this purpose, nonlinear numerical analyzes have been performed for three types of concrete cylindrical tanks with variable height to diameter ratio, taking into account the cracking of concrete. Then, the fragility curves of the tanks for the critical crack width are extracted according to the recommendation of Journal 123. These curves are compared with the results of previous research conducted in a linear manner without considering the cracks in the reservoir body, and the effects of applying crack widths in the analyses are discussed. The results indicate the need to apply tank cracking conditions in increasing dynamic analysis and extraction of fragility curves.

Cylindrical tanks are fundamental structures used for the storage of liquids.Sloshing caused by earthquakes in tanks without enough freeboard leads to aliquid impact on the roof of tanks. This study aims to explore the base shearvariation due to insufficient freeboard using experimental and numerical methods.The experimental tests are performed using a cylindrical liquid tank excited byvarious harmonic loads. The impact of some parameters such as the water height totank radius ratio and freeboard on base shear force are investigated by conducting90 tests. Impulsive and convective masses for simplified mass-spring are modifiedin numerical models so that experimental and numerical base shear resultsare consistent. Finally, a simple analytical solution to estimate the reduction ofconvective mass due to insufficient freeboard is suggested and validated usingexperimental results.

This paper introduces an improved isolation system for aboveground storage tanks (ASTs). In this system, the tank shell is supported by a ring of vertical isolation systems (VIS) that dampen the rocking motion of the tank shell caused by dynamic loads. On the other hand, the forces in the vertical direction caused by the overturning moment are isolated as an alternative to the common horizontal system used for shear base isolation of ASTs. The effects of the proposed vertical isolation system on the seismic responses of the contained liquid are examined using various tank dimensions and earthquake ground motions. The finite element model (taking into account fluid-structure interaction effects) is used to simulate the contained liquid, as well as the tank shell. The results indicate that the new system could efficiently reduce the main seismic design parameters of the tanks, including base shear, overturning moment, and seismic stress in the tank shell. The sloshing wave height, however, is not significantly affected.

Identifying the causes of depression, which is one of the most common psychiatric disorders, can help prevent and treat it. From the point of view of Islam, material attachment and the kind of relationship with God are factors influencing depression. On the other hand, Western scholars have emphasized the role of ineffective attitudes as an effective factor in depression. The purpose of this study was to predict depression based on material belonging and attachment to God in comparison with ineffective attitudes. The research design was correlational, and statistical population included the students of Shiraz University 209 of whom were selected through convenience sampling. The research tools included Beck Depression Inventory, belonging, attachment to God and ineffective attitudes. The results showed that material attachment, ineffective attitudes and avoidant attachment style to God can predict depression in a positive and meaningful way. Material attachment was also identified as the strongest variable. The results indicate that Islam has many potentialities for defining the key variables in explaining depression.

Human capital or teacher skills are gained through both classroom experience and formal training. The present study was conducted to investigate the relationship between teachers chr(chr('39')39chr('39'))human capital and studentschr(chr('39')39chr('39')) academic achievement in high schools in Sahneh.

The research method was descriptive-survey, and the statistical population was all teachers in Sahneh, whose number was 135 people. Using Cochranchr(chr('39')39chr('39'))s formula, 93 of them were selected as sample members. The results were analyzed using one-sample t-test and independent t-test as well as multivariate regression analysis.

Findings showed that: 1. The human capital status of teachers in Sahneh city under the components of information, knowledge and skills and also in the components of metacognitive, emotional-communication to an appropriate extent, but below the component of expertise to a low extent Was located. 2. Educational status of male and female students were not significantly different from each other. 3. There was a weak correlation (0.144) between teachers chr(chr('39')39chr('39'))human capital and studentschr(chr('39')39chr('39')) academic achievement (grade point average).

Investing in teacherschr(chr('39')39chr('39')) human capital has significant returns in the classroom. Using teacherschr(chr('39')39chr('39')) test information and survey data in the field of teacher education, it can be concluded that teacher knowledge and education have a significant impact on student performance and classroom productivity.

Given the prevalence of depression in different societies, identifying its predictive factors with the purpose of prevention and early intervention is of great importance. In Islam, emphasis has been put on patience as a determining factor in preventing depression. The aim of this study was to predict depression based on patience and its components.
This study adopted a correlational method. The population included Shiraz University students, from whom 209 were selected through convenience sampling. Research instruments were Patience Scale and Beck Depression Π Inventory. In order to analyze the data, stepwise and enter regression were used. In this study, the ethical issues were all considered; besides, the authors declare no conflict of interest.
The results showed that persistence and contentment can predict depression both significantly and negatively. Moreover, the total score of patience could also predict depression significantly and negatively.
Regarding the role of this religious variable in developing and prevention of depression, therapists and researchers should pay more attention to patience and its components.

Sloshing Wave Impact Force (SWIF) caused by liquid motion during seismic excitations is investigated in this paper. When the freeboard is insufficient, the liquid waves collide to the tank roof on which uplift forces are produced. Due to the complication of sloshing impaction, there is no comprehensive investigation that can clarify the various aspect of this phenomenon. Therefore, most of standards don’t recommend any method to evaluate SWIF. Alternatively, the main approach of related codes and standards is to suggest a required freeboard in order to prevent collision of sloshing wave to the tank roof instead of evaluating the SWIF. However, suggested freeboard is too high to meet economic considerations in some cases. Therefore, the impact forces should be reasonably evaluated based on the experimental measurements and analytical solutions. An experimental investigation has been implemented to clarify the influence of various geometrical parameters on the impact roof pressure and force values of a rectangular tank. A series of shaking table tests are conducted for a partially filled rectangular tank under harmonic and different earthquake excitations. The experimental measurements for SWIF are compared with those recommended by code provisions and the effects of various parameters on SWIF are discussed.

The purpose of the current study was to investigate the effectiveness of behavioral parent training for mothers of children with conduct disorder on the reduction of aggression symptoms of their children.

Twenty-four mothers of children with a diagnosis of conduct disorder were selected using convenient sampling method. The sample was divided into control and experimental groups (12 mothers in each). Both groups completed the CBCL questionnaire. In the next step, the experimental group participated in behavioral parent training (ten sessions). At the end of the training both groups completed the questionnaire at the post-test phase. The data were analyzed whit ANCOVA.

The results showed that behavior parent training decreased aggression in the children of the experimental group compared whit the control group (p< 0.05).

It can be concluded that behavioral parent training to mothers, could decrease the behavioral problems of their children.

Stressful life Events, are challenging occurrences that are associated with emotional disruptions and seem to be one of the factors that lead individual to clash with depression and rumination, are worrying experiences that continually occur over time and can have an important role in creating suicidal thoughts. The aim of this study is to present a model to predict suicidal thoughts based on stressful events and depressive mediated rumination in students. Therefore, in a correlation study, 155 post-graduate students of Shiraz University were selected randomly and evaluated for depression, suicidal thoughts, and rumination responses. Correlation analysis showed that stressful life events and rumination scores can directly and significantly predict depression and suicidal thoughts. According to the proposed model, it was found that stressful life events and depressive mediated rumination could significantly predict suicidal thoughts. It appears that the risk of depression and suicidal thoughts is higher in students who have experienced more stressful life events and tend to use ruminative response more often. Given that students have an important role in community development; employing methods that prevent and treat depression and suicidal thoughts among this demographic is essential.

During the last 20 years, part of the research work has focused on the seismic analysis of Liquefied Natural Gas (LNG) tanks, due mainly to (1) the increasing number of LNG tanks constructed in seismically active regions, resulting from the adoption of LNG as an environmentally friendly fossil fuel, and 2) the catastrophic environmental impact, associated with a potential local or total failure of such tanks, caused by the earthquake motion. Seismic isolation is a well-known method to mitigate the earthquake effects on the structures by increasing their fundamental natural periods at the expense of larger displacements in the structural system. In this study, the seismic response of isolated and fixed base vertical, cylindrical, liquid storage tanks is investigated using a numerical model, taking into account the fluid-structure interaction effects. The numerical model is validated by the comparison of its results with the experimental measurements of small-scale tank under harmonic and seismic excitations. The comparison reveals that the use of the considered model provides enough accuracy for evaluating the seismic behavior of nonlinear isolated and non-isolated tanks. Three vertical, cylindrical tanks with different ratios of height to radius (H/R = 2.6, 1.0 and 0.3 as the representatives of slender, medium and broad tanks) are analyzed and the results of response-history analysis, including base shear, overturning moment and free surface displacement are reported for isolated and non-isolated tanks. The isolated tanks are equipped with lead rubber bearings isolators, and the bearings are modeled by using a non-linear spring in numerical model. Long period ground motion is the main parameter that can significantly affect the seismic response of isolated tank. It is observed that the seismic isolation of liquid storage tanks is quite effective and the response of isolated tanks is significantly influenced by the system parameters such as their fundamental frequencies and the aspect ratio of the tanks. The average reductions of base shear forces of isolated tanks are 71%, 70% and 50% for broad, medium and slender isolated tanks. It seems that the effectiveness of base isolation system to mitigate the base shear force is not significantly affected by changing of tank aspect ratio. In terms of overturning moment, the average reductions of the order of 71%, 69% and 47% for broad, medium and slender tanks is obtained due to applying of isolation system. Therefore, overturning moment is considerably mitigated by the reduction of the tank aspect ratio. The effectiveness of base isolation considerably reduces for exerted earthquake records including long period motion. Especially for slender tanks, base isolation may even increase the overturning moment. However, the base isolation does not significantly affect the surface wave height, and even it can cause adverse effects on the free surface sloshing motion. The results of free surface displacement for both isolated and nonisolated tanks have quite similar trends for considered tanks. The errors between the maximum sloshing wave height of fixed base and isolated tank are less than 8% for most of the considered cases. Even, the sloshing height is slightly amplified in some cases. Therefore, the base isolation system can cause adverse effects on the free surface sloshing motion. It can be concluded that the effectiveness of the base isolation method is very sensitive to the physical and geometrical parameters of the considered tanks. This suggests that a careful selection of isolators with a certain limit on the mechanical properties of the isolators is required for the optimal seismic isolation design of liquid storage tanks.

Nausea and Vomiting due to chemotherapy are the most distressing side effects of this treatment in breast cancer patients. Apart from pharmacological factors, non-pharmacological factors including psychological factors such as emotions and emotion regulation have a significant impact on the incidence and severity of these side effects. Because emotion regulation is one of the main factors leading to different behaviors in different individuals in response to various situations, the aim of this research is the study of difficulties in emotion regulation as a predictor of incidence and severity of nausea and vomiting in breast cancer patients. In this is descriptive correlation study (Oct 2012-Feb 2013), 300 breast cancer patients referred to Reza clinic and Omid and Qaem hospitals in Mashhad were selected through available sampling. They completed Difficulties in Emotion Regulation Scale (DERS) and nausea and vomiting scale (MANE). To data analysis SPSS software, factor analysis and regression analysis were used. The results of regression analysis showed that difficulties in emotion regulation can predict the incidence and severity of nausea and vomiting in breast cancer patients (P<0.01). Considering the findings, difficulties in emotion regulation can predict the incidence and severity of nausea and vomiting in breast cancer patients.

In this study, the damping effect of the horizontal baffles inside a liquid storage tank is investigated. For this purpose, a numerical model based on the finite volume method is established.The numerical model is used to evaluate the accuracy of the analytical model developed to estimate the hydrodynamic damping caused by wall bounded baffles. For this purpose, several full-scale baffled tanks with different aspect ratios are numerically analyzed, and the validity of the analytical model is discussed with respect to the numerical results.Next, the reduction in sloshing wave height due to the presence of the baffles is considered for selected tanks subjected to seismic excitations. Finally, a simple procedure to seismically evaluate the reduction of sloshing amplitude due to the presence of baffles is proposed and validated using the time history numerical results.

This research aimed to investigate the effectiveness of brief group couple therapy (BGCT), traditional treatment and drug therapy on marital adjustment in patient with substance abuse. A sample was selected comprised of 75 men with their wives that were referring to substance abuse treatment clinics in Shiraz. The couples were assigned to 3 groups: BGCT drug therapy, traditional treatment drug therapy, and only drug therapy. All group members were pretested, post-tested and fallowed-up by interview, laboratory rapid test and dyadic adjustment scale (DAS). The result showed that "BGCT", in comparison with traditional treatment and only drug therapy, has significant effect on marital adjustment in patient with substance abuse in post test and follow up. We can conclude that "BGCT" has more effect on increasing marital adjustment in men with substance abuse.