objectives : the aim of the present study was to investigate the role of positive and negative perfectionism, self-efficacy, worry and emotion regulation in predicting behavioral and decisional procrastination. method: in current correlational study, 365 students from tehran university completed general self-efficacy scale (gses), difficulties in emotion regulation strategies scale (ders), worr...

background: the aim of present study was to evaluate the protective efficacy of live recombinant l. tarentolae expressing kmp11-ntgp96-gfp fusion as candidates for live engineered recombinant vaccine against visceral leishmaniasis in balb/c mice. methods: kmp-11 and nt-gp96 genes cloned into the pjet1.2/blunt cloning vector and then into pegfp-n1 expression vector. the kmp-11, nt-gp96 and gfp f...

Advances in medical technology and the health sciences have lead to a rapid increase in the prevalence and morbidity of high-risk infants with chronic or permanent sequels such as the birth of early preterm infants. A suitable formula is therefore needed for body surface area (BSA) estimation for high-risk infants to more accurately devise therapeutic regimes in clinical practice. A cohort stud...

The concept of teacher efficacy has received significant attention in educational contexts in the recent years and has been empirically probed at 2 levels: individual teacher efficacy and collective teacher efficacy. Having their origins in the social cognitive theory, teacher and collective efficacy perceptions are quite distinct constructs, each affecting educational decisions and student ach...

Purpose: This research was conducted with the aim of presenting a model of self-handicapping based on time perspective and intelligence beliefs mediated by academic self-efficacy in students. Methodology: Present study was cross-sectional from type of correlation. The research population was all secondary high school students of Tehran city in 2019-20 academic years. The sample size was consid...