The relationship between emotional intelligence and addiction potential tendency pre-university students

Background and aims: Unfavorable emotional growth in adults may lead to addiction. This study investigated the relationship between emotional intelligence and students’ potential talent pertaining to addiction. Methods: This study is a descriptive analytical study. All male students of pre-universities in Shahrekord city participated in this study One hundred and twelve participnts were chosen based on the stage cluster sampling. In order to collect data emotional intelligence questionnaire and addictive potential survey (APS) were used. Data were analyzed based on Pearson and regression correlation. Results: The results Showed that there is a negative significant relationship among the emotional intelligence (P<0.05, r=-0.37), emotional save order (P<0.01 r=-0.63, P<0.01 r=-0.60) and emotional usability (P<0.01 r=-0.51, P<0.01 r=-0.49) in students resident in city and in rural area respectively and addiction vulnerability. Emotional intelligence and emotional save order components have the potential to predict the addiction tendency (P<0.01). Conclusion: Lack of emotional intelligence is one of the major factors that affect drug using tendency in students. Therefore, training is necessary for students

Psychometric Properties of the Persian Language Version of the System Usability Scale

Background: The System Usability Scale (SUS) is a widely used self–administered instrument for evaluating the usability of a wide range of products and services. The aims of this descriptive- methodological study were to develop and investigate the psychometric properties of the Iranian version of the SUS. Methods: The study was conducted among 202 university students from the Tabriz University of Medical Sciences, Iran. Content validity was evaluated by a panel of 10 experts. Construct validity was assessed by exploratory and confirmatory factor analyses. The internal consistency and test-retest reliability were assessed by Cronbach’s alpha and Intraclass Correlation Coefficient (ICC), respectively. Additionally the feasibility of the measure was judged by ceiling and floor effect. Results: Content validity of the short form of Iranian SUS was established. Factor analyses supported the conceptual uni-dimensionality, and thus confirmed the construct validity of the measure. The internal consistency (α =0.79) and test retest reliability (ICC = 0.96) were both approved and there was also no ceiling nor floor effect. Conclusions: The findings support the use of SUS for both practical and research settings in Iranian population

Investigating the Behavior of the Plastic Concrete Made with Different Types of Fibers with an Approach to the Mixing Plans of Plastic Concrete

The complicated nature of the plastic concrete’s behavior compared to conventional concrete has led to the study of the behavior of the plastic concrete and the advent of suitable solutions to improve the behavior of the concrete due to the abundance of plastic concrete in the construction of cut-off walls under the dams. For the purpose of a practical study, at first, the mixing plan of the plastic concrete cut-off wall in Nargesi dam was investigated. Then, 22 primitive mixing plans were identified and labeled in the laboratory to identify the optimal mixing plan in accordance with the required technical criteria. After selecting the desired optimal design, to investigate the effect of the fiber on the behavior of this concrete, %0.19 and 0.38% volumes of polypropylene, hooked metal and corrugated metal fibers were used; hence, 168 samples were presented. Compressive strength for the ages of 7, 28, 42 and 90 days with elasticity modulus as well as corresponding stress-strain curves and tensile strength for 90-day age were investigated. The results indicated that the extremely high compressive strength and modulus of elasticity have a very high impact on the amount of bentonite and the ratio of water to bentonite so that with increasing these two values, the compressive strength and modulus of elasticity decrease significantly. The results indicated that using fibers increases deformation which is more evident in samples made with polypropylene fibers. The results also showed that the compressive strength and modulus of elasticity of plastic concrete is increasing linearly with time, and the elastic modulus growth rate is lower than the compressive strength due to the increase in the duration of time, and in other words, the plastic state concrete changes less over time