The main problem with traditional learning methods is that it makes the learner's mind stagnate and does not provide him with any motivation to acquire new knowledge and improve his skills. Micro learning offers a new educational model that can divide knowledge and information into small pieces and deliver it to learners, and this makes learning attractive and long-term lasting for learners in this research, an attempt has been made to present a comprehensive model to identify the key elements of success in the implementation of micro-learning in the organization's environment. In terms of the purpose of this research, it is a developmental research, and in terms of the method of gathering findings, it was conducted with a qualitative approach and using the synthesis research method based on the six-stage model of Roberts (2006). The statistical population of the research includes all valid scientific articles related to the subject in the period (2000-2023) that are indexed in specialized and scientific databases inside and outside the country. In order to sample from among the searched sources, after several stages of screening with the indicators of title, abstract, research content and quality and critical assessment skills (CASP), 19 sources were selected purposefully. Validation of the research findings was evaluated through the four criteria of Lincoln and Guba (1985), researcher self-review, agreement between two coders. Based on the findings of the research, 187 basic themes as indicators and 8 main themes (e-learning, informal learning, learning environment, self-directed learning, interactive learning, micro content, mobile learning and micro evaluation) as key elements. Success in the implementation of micro learning in the organization's environment was identified. According to the findings of the research, it is suggested that the trustees of the education unit pay attention to the main themes in order to plan and hold training courses.

In order to evaluate the reflection of sugar beet cv. Rasul to application methods of micro elements, a factorial experimental based on randomized complete blocks design with three replications was conducted during 2006. The treatments were types of micro elements at 5 levels: without the use of micro elements (control), ZnSo4, MnSo4, FeSo4 and Boric acid and the application methods at 3 levels: coated with the seed, soil application and foliar application. The foliar application treatments, with 0.005 concentrations experimental in per units were performed at two times, first in 8-10 and second in 14-16 leaf stages. The characteristics evaluated were: root yield, biomass, and harvest index, percentage of sugar and dry matter. ANOVA showed that the effect of micro elements on root yield, harvest index, percentage of dry matter and sugar were significant. The effect of the micro elements application method and interaction of examined factors was significant only in root yield and percentage of sugar. Based on the results obtained it can be said that increased in root yield, sugar percent and dry matter, harvest index and biomass significantly. Foliar application of Fe and Mn and the soil application of B and Zn produced higher root yield as compared with the other application methods. The high percentage of sugar production was made possible by the foliar application of Fe and soil application of other 3 elements. The highest root yield with Fe foliar application was equal to 6.143 kg.m-2 and the highest percentage of sugar with soil application of Zn was equal 18.32%, which resulted in the highest percentage of root dry matter production in (19.44%). The application of micro elements increased harvest index from the minimum amount 53.85% to maximum amount 72.27% when Mn was used. Thus, the application of micro elements, despite the methods used can increase percentage of sugar, by increasing leaf area duration, photosynthetic ability of plant and metabolic functions.

Introduction: Post-traumatic stress disorder (PTSD) is a form of anxiety disorders. PTSD typically follows an exposure to severe stress. It is characterized by a particular clinical syndrome, including re-experiencing symptoms and alterations in arousal, avoidance, cognition, and mood conditions. Recent evidences propose that micro-RNAs are crucial epigenetic players in mental disorders. It has been demonstrated that micro-RNAs are promising non-invasive biomarkers for different mental health disorders. It has been reported that the levels of micro-RNAs have been changed in psychotic diseases, including Alzheimer’s disease and PTSD.Conclusion: Micro-RNAs seem to play a role in pathophysiology of psychological diseases. In this article, we discussed the new findings suggesting a relationship between micro-RNAs and PTSD as well as the possible roles of micro-RNAs in diagnosis and treatment of this mental disorder.

Municipal solid waste (MSW) leachate contains micro elements that can be used by plant. They are essential for plant growth cycle at sufficient level and impose a vital role in increasing yields of most agricultural crops. Greenhouse experiment was carried out with four treatments (control, 20%, 40%, 60% leachate to water (V/V) ratios) with three replications by using a completely randomized design to study the effect of (MSW) leachate on growth and concentration of Fe, Cu, Zn and Mn in green chilli plant .Plant fresh biomass and plant height were highest in 40%(MSW) leachate, with an increase of 68% and 107% respectively compared to control. Number of branches in 40%(MSW) leachate showed an increase of 80% compared to control indicating a positive impact of (MSW) leachate application of up to 40% on these parameters. Fe, Cu, Mn concentrations in plant showed an increasing trend with increasing the percentage of (MSW) leachate to water. As 60% (MSW) leachate increased Fe, Cu, Mn concentrations by 6%,31%,6% respectively when compared to control, but no significant changes were observed between the treatments. Highest Fe, Cu, Mn contents in soil after plant harvest were observed in (MSW) leachate of 60% indicating, their highest uptake and concentrations in plant for this treatment, probably due to limited plant growth. Highest Zn were observed in plant and soil of 60% (MSW) leachate treatment, as Zn concentration in plant showed 46% increase compared to control, probably, due to its highest soil content for this treatment. In general, application of (MSW) leachate up to 40%(V/V) leachate to water ratio for green chilli had a positive impact on plant growth parameters and concentrations of Fe, Cu, Zn, Mn in plant and soil (except Fe).However, their concentrations were much less than their standard critical values and therefore leachate applications in calcareous soils is recommended while considering soil EC and plant tolerance.

In order to study the effect of water stress and Micro elements (B. Zn. S) on physiological aspects of Rapeseed varieties, 5 varieties, Hyola - 42, Syn1, Pf 7045.01, Symbol and Mohican, as a subplot have been studied under water stress and non stress condition (0, 25 and 75 percent of Fc) as main plot in split plot design with four replication on varamin. Results showed significant between irrigation treatment and varieties in pods per plant, grains in pod and yield. Between varieties most yield and yield component had been seen for Hyola 42 and lowest yield was for Symbol.1000 grain weight and another characteristics was effected by water stress, . there were no significant difference between varieties in response to Boron and Zinc in leaf dry matter. so there were in water deficit (O percent of Fc) treatment reduced than normal treatment reduced and showed significant difference between varieties in level %1 In split plot design, water stress Increased micro element concentration In leaved. Sulfur reduced from.0198 to.0101 and Zinc from 29.6 to 15.2 mg/kg of dry matter. Plant characters evaluated in this study were: Plant weight, number of pods per plant, number of grains per pod, 1000 grain weight, grain yield, percent oil content and yield of oil. Analysis of data showed significant different cen between irrigation treatment and varieties in pods per plant, grains in pod and grain yield. Between varieties the highest yield and yield component was for Hyola 42 (with 3377/5 Kg/ha) and lowest yield was for Symbol (with 1947 Kg/ha). 1000 grain weight and another characteristics was effected by water stress, so there were in water deficit (0 percent of FC) treatment reduced than normal treatment. and showed significant difference between varieties in level%1. In split plot design, water stress increased nitrogen concentration of %2.5 reached to %3.7 of leaved in dry matter. But decreased phosphor from 0/35% to 0/18% and Potassium percent from %2.73 reached to %1/09 in leaved dry matter. Water stress (75%. 0% percent of FC) decreased grain yield and Oil yield. Grain yield from 3340 Kg /ha decreased to (1788 Kg/ha) and oil yield from (1343 kg/ha) reached to (753 kg/ha). cultivars were not significantly different in percent oil content. But water stress decreased percent oil content from %43/1 on %75 FC to %40/2 on %0 FC. In conclusion, differences is exist between rapeseed cultivars and lines in response to water stress, and this may be due to different accumulation of compatible solutes, and physiological aspects example yield and yield component.