this research aimed to study of the effects of classroom goal structures on students’ psychological wellbeing with respect to the mediating role of self-efficacy and basic psychological needs. in this regard, the effects of performance and mastery goal structure as exogenous variables with self-efficacy and basic psychological needs as mediating variables on wellbeing were tested through a hypo...

M ONOLITHIC piezoelectric materials (PZTs) have been widely used as distributed sensors and actuators for developing smart structures with self-monitoring and selfcontrolling capabilities [1–10]. However, their major drawback is low control authority as the magnitude of their electromechanical coefficients is very small. The situation can be improved by using an active constrained layer damping...

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Potentially traumatic experiences that place the lives and physical integrity of individuals and their loved ones in jeopardy are common, although they vary over time and between populations. According to a study in the cities of Rio de Janeiro and São Paulo 1, more than 80% of inhabitants over 14 years of age had already experienced such situations at least once in their lives. Major disasters...

There has long been need for a behavioural intervention that attenuates cue-evoked drug-seeking, but the optimal method remains obscure. To address this, we report three approaches to extinguish cue-evoked drug-seeking measured in a Pavlovian to instrumental transfer design, in non-treatment seeking adult smokers and alcohol drinkers. The results showed that the ability of a drug stimulus to tr...

this study aims to assess the validity and reliability of the persian version of simons and gaher's distress tolerance scale(dts) by administering it to nicotine dependent students of tehran university.in a descriptive cross-sectional study, 317 nicotine dependent students of tehran university who were selected, using available sampling method, completed dts, coping with stress- revised(cs-r), ...

the internet is a widely recognized channel for information exchange, academic research, entertainment, communication and commerce. the internet is a new tool that is evolving into an essential part of everyday life all over the world and its use increases especially among young people. although the positive aspects of the internet have been readily praised, there is a growing amount of literat...

background: test anxiety aggravates psychological distress and reduces the motivation among graduate students. this study aimed to identify psychological intervention for test anxiety, which reduces the level of psychological distress, amotivation and increases the intrinsic and extrinsic motivation among medical students. materials and methods: westside test anxiety scale, kessler perceived st...